[wifi] Use register_apply_action for wifi.enable, wifi.disable and wifi.roam

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.agents/skills/code-review/SKILL.md

@@ -0,0 +1,116 @@
+---
+name: code-review
+description: Review guidance for ESPHome pull requests. Use this when reviewing a pull request that changes ESPHome Python, C++, or component code, to check it against the project's coding conventions, embedded-systems memory rules, testing requirements, and breaking-change policy.
+---
+
+# Reviewing ESPHome pull requests
+
+ESPHome parses YAML into C++ firmware for memory-constrained microcontrollers
+(ESP32, ESP8266, RP2040, LibreTiny). Review changes with that in mind: RAM and
+flash are scarce, and code runs unattended for months.
+
+`AGENTS.md` in the repository root is the full contributor guide and the
+authority when it disagrees with this summary. The developer documentation at
+https://developers.esphome.io explains the component lifecycle and the reasoning
+behind these rules. This skill lists the concrete things worth flagging in a
+review; read `AGENTS.md` for the detail behind any item.
+
+Only raise findings that the diff actually introduces or changes. Do not ask for
+drive-by cleanup of pre-existing code the PR did not touch.
+
+## Memory and embedded constraints (highest value)
+
+Heap allocation after `setup()` is treated as a reliability bug, not a
+performance nit, because it fragments a small shared heap. Flag:
+
+- New heap allocation on a hot path or after setup that could be avoided.
+- `std::vector` where the size is known at compile time (use `std::array`, or
+  `StaticVector<T, N>` when a `push_back` API is needed) or fixed at runtime
+  init (use `FixedVector<T>`).
+- Listener / child-entity registration lists stored as `std::vector`; these have
+  a compile-time-known count and should use `cg.slot_counter()` plus
+  `StaticVector`.
+- `std::vector<uint8_t>` for a byte buffer that never grows: prefer
+  `std::unique_ptr<uint8_t[]>` or `std::array`.
+- `std::map` / `std::set` / `std::unordered_map` for small datasets (1-16
+  elements): a `std::vector` of a small struct with linear search is lighter.
+- `std::deque` anywhere: it allocates 512-byte blocks and should be avoided.
+- `std::string` storing a value set once from config: prefer `StringRef` (the
+  literal already lives in flash).
+- `std::string` / `std::to_string` / string-returning helpers on hot paths where
+  a buffer or view API exists.
+
+## C++ conventions
+
+- Include what you use: a file referencing a symbol must include the header that
+  declares it, even if it currently arrives transitively. New or changed uses of
+  a symbol need the matching include.
+- Prefix all member access with `this->`.
+- Naming: `lower_snake_case` for functions/methods/variables, `UpperCamelCase`
+  for classes/structs/enums, `UPPER_SNAKE_CASE` for namespace-scope constants,
+  trailing underscore on protected/private fields.
+- `enum class` values must be prefixed with the enum name in `UPPER_SNAKE_CASE`
+  (e.g. `UARTFlushResult::UART_FLUSH_RESULT_SUCCESS`). Bare names like `SUCCESS`,
+  `FAIL`, or `OK` collide with SDK macros on some platforms and break the build.
+- Prefer `const`/`enum` over `#define`; `#define` is only for conditional
+  compilation and code-generation sizes.
+- Never call `millis()` in a `loop()` body; use
+  `App.get_loop_component_start_time()`. A rate-limit gate below ~16 ms (the loop
+  period) does nothing.
+- Pick the timing primitive by cadence: gated `loop()` under 250 ms,
+  `set_interval` at 500 ms and above.
+- Do not override a base method to return the value it already returns (e.g.
+  `get_setup_priority()` returning `setup_priority::DATA`).
+- Wrap string literals passed as printf `%s` args in `LOG_STR_LITERAL()`.
+- Required, invariant dependencies should be constructor parameters, not setters.
+- Callback registration methods must be templated (`template<typename F>`), not
+  typed as `std::function`, so lightweight forwarders avoid a heap allocation.
+- Two-space indent, `using` over `typedef`, wrap at 120 columns.
+
+## Python conventions
+
+- Type-annotate every new function signature (params and return), new dataclass
+  fields, and new module-level variables. Import `ConfigType` from
+  `esphome.types`.
+- Use the walrus operator to avoid a double lookup, e.g.
+  `if (blah := config.get(CONF_BLAH)) is not None:`.
+- Reuse existing validators from `config_validation.py` (`cv.rename_key`,
+  `cv.has_exactly_one_key`, etc.) via `cv.All(...)` instead of hand-rolling.
+- `esphome/const.py` is frozen: no new `CONF_` constants there. Define them in
+  the component's own `.py`, or in `esphome/components/const/__init__.py` when
+  shared. The same constant defined in three or more component files fails CI.
+- State that must persist during code generation goes in `CORE.data` namespaced
+  under the component `DOMAIN` (a `@dataclass`), not module-level mutable globals.
+- Prefer callback-based triggers via `build_callback_automation()`; only use a
+  `Trigger<Ts...>` subclass when the forwarder needs mutable state.
+
+## Testing and coverage
+
+- New and changed lines and branches need test coverage, including defensive
+  early-returns, error paths, and no-op guards. A mocked-out function is not
+  covered; exercise the real call path too.
+- Component YAML tests live in `tests/components/<component>/`. Never define
+  buses (uart, i2c, spi, modbus) directly in a test file: pull them from
+  `tests/test_build_components/common/` through dict-style `packages:` so CI can
+  group builds. List-style packages or top-level merge keys block grouping.
+- Config-only checks use the `validate.*.yaml` prefix; compiled checks use
+  `test.*.yaml`.
+
+## Breaking changes and public API
+
+- Base classes under `esphome/core/` and documented config options are public
+  API. Undocumented `public` members of a component are internal.
+- A breaking change needs justification, a migration path in the PR description,
+  and a deprecation window where feasible (`ESPDEPRECATED` in C++,
+  `cv.rename_key(..., removed_in=...)` in Python). Changing a codegen-injected
+  lambda signature is not a breaking change.
+
+## Process and PR hygiene
+
+- PR titles start with a `[tag]` prefix: the component name (e.g. `[uart] ...`)
+  or `[core]` for shared code.
+- Prose in docs, comments, and commit messages should be plain English. Keep
+  inline comments short and only where the code is not self-explanatory; do not
+  restate what the code says.
+- Verify the PR fills out `.github/PULL_REQUEST_TEMPLATE.md` and adds
+  `CODEOWNERS` entries for a new component.

.devcontainer/Dockerfile

@@ -31,7 +31,4 @@ RUN \
     platformio settings set enable_telemetry No \
     && platformio settings set check_platformio_interval 1000000
 
-COPY script/platformio_install_deps.py platformio.ini ./
-RUN ./platformio_install_deps.py platformio.ini --libraries --platforms --tools
-
 WORKDIR /workspaces

.github/actions/build-image/action.yaml

@@ -42,7 +42,7 @@ runs:
 
     - name: Build and push to ghcr by digest
       id: build-ghcr
-      uses: docker/build-push-action@53b7df96c91f9c12dcc8a07bcb9ccacbed38856a # v7.3.0
+      uses: docker/build-push-action@c3c9e263c25d99ce0380d002d59b67737d91b0dc # v7.4.0
       env:
         DOCKER_BUILD_SUMMARY: false
         DOCKER_BUILD_RECORD_UPLOAD: false
@@ -67,7 +67,7 @@ runs:
 
     - name: Build and push to dockerhub by digest
       id: build-dockerhub
-      uses: docker/build-push-action@53b7df96c91f9c12dcc8a07bcb9ccacbed38856a # v7.3.0
+      uses: docker/build-push-action@c3c9e263c25d99ce0380d002d59b67737d91b0dc # v7.4.0
       env:
         DOCKER_BUILD_SUMMARY: false
         DOCKER_BUILD_RECORD_UPLOAD: false

.github/actions/restore-python/action.yml

@@ -32,7 +32,7 @@ runs:
       # detects the activated venv via ``VIRTUAL_ENV`` so the venv layout
       # downstream jobs rely on is preserved.
       if: steps.cache-venv.outputs.cache-hit != 'true'
-      uses: astral-sh/setup-uv@bec219d24cd3e171d82865faccec33120bb574f4 # v10.1.0
+      uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
       with:
         enable-cache: true
         # Pull request saves land in per-PR scopes nothing else can

.github/workflows/ci-api-proto.yml

@@ -29,7 +29,7 @@ jobs:
       - name: Set up uv
         # ``--system`` (below) installs into the setup-python interpreter;
         # no venv is created or restored by this workflow.
-        uses: astral-sh/setup-uv@bec219d24cd3e171d82865faccec33120bb574f4 # v10.1.0
+        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
         with:
           enable-cache: true
           # Pull-request-only workflow: a save could never be shared and

.github/workflows/ci-docker.yml

@@ -12,9 +12,7 @@ on:
       - ".github/workflows/ci-docker.yml"
       - "requirements*.txt"
       - "pyproject.toml"
-      - "platformio.ini"
       - "esphome/idf_component.yml"
-      - "script/platformio_install_deps.py"
       # Core, build pipeline, toolchain, and target-platform changes can change
       # how a toolchain is set up or built, so re-run the per-toolchain compile
       # smoke test when they change.
@@ -67,7 +65,7 @@ jobs:
         with:
           python-version: "3.12"
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@37fe631027851001ddb9b187196cc803df7f5f0e # v4.3.0
+        uses: docker/setup-buildx-action@594f3bf4285d9ea8dc53c9a0c9c4092420091003 # v4.4.0
 
       - name: Determine tag and whether to push
         id: tag
@@ -159,7 +157,7 @@ jobs:
         with:
           python-version: "3.12"
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@37fe631027851001ddb9b187196cc803df7f5f0e # v4.3.0
+        uses: docker/setup-buildx-action@594f3bf4285d9ea8dc53c9a0c9c4092420091003 # v4.4.0
 
       - name: Log in to the GitHub container registry
         uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4.6.0

.github/workflows/ci.yml

@@ -49,7 +49,7 @@ jobs:
         # detects the activated venv via ``VIRTUAL_ENV`` so downstream jobs
         # that ``. venv/bin/activate`` see an identical layout.
         if: steps.cache-venv.outputs.cache-hit != 'true'
-        uses: astral-sh/setup-uv@bec219d24cd3e171d82865faccec33120bb574f4 # v10.1.0
+        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
         with:
           enable-cache: true
           # Pull request saves land in per-PR scopes nothing else can
@@ -321,7 +321,7 @@ jobs:
           . venv/bin/activate
           pytest -vv --cov-report=xml --tb=native --durations=30 -n auto tests --ignore=tests/integration/
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@0b35c9ecc4f0529d0eb674914510c22f85b196b4 # v7.1.0
+        uses: codecov/codecov-action@303a32d7a59b442fa8d48b6a1cc6825c09c847a5 # v7.1.1
       - name: Save Python virtual environment cache
         if: github.ref == 'refs/heads/dev'
         uses: actions/cache/save@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
@@ -350,7 +350,7 @@ jobs:
       - name: Check out code from GitHub
         uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - name: Report empty upload to Codecov
-        uses: codecov/codecov-action@0b35c9ecc4f0529d0eb674914510c22f85b196b4 # v7.1.0
+        uses: codecov/codecov-action@303a32d7a59b442fa8d48b6a1cc6825c09c847a5 # v7.1.1
         with:
           run_command: empty-upload
           force: true
@@ -413,7 +413,7 @@ jobs:
       - name: Set up uv
         # Only needed on cache miss to populate the venv.
         if: steps.cache-venv.outputs.cache-hit != 'true'
-        uses: astral-sh/setup-uv@bec219d24cd3e171d82865faccec33120bb574f4 # v10.1.0
+        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
         with:
           enable-cache: true
           # Pull request saves land in per-PR scopes nothing else can
@@ -1274,7 +1274,7 @@ jobs:
         # install step (order-of-magnitude faster on cold boots,
         # with its own wheel cache). actions/setup-python still
         # provides the interpreter.
-        uses: astral-sh/setup-uv@bec219d24cd3e171d82865faccec33120bb574f4 # v10.1.0
+        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
         with:
           enable-cache: true
           # Pull request saves land in per-PR scopes nothing else can

.github/workflows/codeql.yml

@@ -56,7 +56,7 @@ jobs:
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@b96794f015dfd88f77b49b1c93e0fa7110f94c63 # v4.38.0
+        uses: github/codeql-action/init@1c5b675653bb5c22dbe9b12b556ec555138e09fd # v4.38.1
         with:
           languages: ${{ matrix.language }}
           build-mode: ${{ matrix.build-mode }}
@@ -84,6 +84,6 @@ jobs:
           exit 1
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@b96794f015dfd88f77b49b1c93e0fa7110f94c63 # v4.38.0
+        uses: github/codeql-action/analyze@1c5b675653bb5c22dbe9b12b556ec555138e09fd # v4.38.1
         with:
           category: "/language:${{matrix.language}}"

.github/workflows/lock.yml

@@ -14,4 +14,4 @@ jobs:
     permissions:
       issues: write         # issues.lock on closed issues
       pull-requests: write  # issues.lock on closed pull requests
-    uses: esphome/workflows/.github/workflows/lock.yml@0fdd5e311b7e744069166696072a1a9cbc5fbeb6  # 2026.8.1
+    uses: esphome/workflows/.github/workflows/lock.yml@cc3e76de337dc59bc1cba8da58d963cd23b873f1  # 2026.9.0

.github/workflows/release.yml

@@ -123,7 +123,7 @@ jobs:
           python-version: "3.12"
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@37fe631027851001ddb9b187196cc803df7f5f0e # v4.3.0
+        uses: docker/setup-buildx-action@594f3bf4285d9ea8dc53c9a0c9c4092420091003 # v4.4.0
 
       - name: Log in to docker hub
         uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4.6.0
@@ -202,7 +202,7 @@ jobs:
           merge-multiple: true
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@37fe631027851001ddb9b187196cc803df7f5f0e # v4.3.0
+        uses: docker/setup-buildx-action@594f3bf4285d9ea8dc53c9a0c9c4092420091003 # v4.4.0
 
       - name: Log in to docker hub
         if: matrix.registry == 'dockerhub'

.github/workflows/stale.yml

@@ -16,7 +16,7 @@ jobs:
     # No GITHUB_TOKEN permissions: the reusable workflow mints an ESPHome
     # GitHub App token so the labels, comments and closures come from
     # esphome[bot] instead of github-actions[bot].
-    uses: esphome/workflows/.github/workflows/stale.yml@a1c1485ab46ef41a84a6a9d8abd7fa4b7628fd70  # main
+    uses: esphome/workflows/.github/workflows/stale.yml@cc3e76de337dc59bc1cba8da58d963cd23b873f1  # main
     secrets:
       ESPHOME_GITHUB_APP_PRIVATE_KEY: ${{ secrets.ESPHOME_GITHUB_APP_PRIVATE_KEY }}
     with:

.github/workflows/sync-device-classes.yml

@@ -47,7 +47,7 @@ jobs:
         # setup-python interpreter so subsequent ``prek`` /
         # ``script/run-in-env.py`` steps find the deps without a
         # ``uv run`` prefix.
-        uses: astral-sh/setup-uv@bec219d24cd3e171d82865faccec33120bb574f4 # v10.1.0
+        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
         with:
           enable-cache: true
           # Pin uv version so the action does not have to fetch the

.pre-commit-config.yaml

@@ -10,7 +10,7 @@ ci:
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
     # Ruff version.
-    rev: v0.16.7
+    rev: v0.16.8
     hooks:
       # Run the linter.
       - id: ruff

AGENTS.md

@@ -443,6 +443,20 @@ file does, and it is the authority when they disagree. The most useful starting
 
         Use `synchronous=True` for actions that run to completion inside `play()` without deferring. Use `synchronous=False` if the action may suspend/defer execution (e.g. `delay`, `wait_until`, `script.wait`) or store trigger arguments for later use.
 
+        **Actions that only forward templatable values to their parent need no C++ class.** Register them
+        with `register_apply_action`; do not write a `TEMPLATABLE_VALUE` class or a builder for this shape.
+        ```python
+        automation.register_apply_action(
+            "my_component.set_gains",
+            schema,
+            automation.ApplyField(CONF_KP, "set_kp", cg.float_),
+            automation.ApplyField(CONF_KI, "set_ki", cg.float_),
+        )
+        ```
+        The `ApplyField`, `ApplyCall` and `register_apply_action` docstrings in `esphome/automation.py` cover
+        the rest; `cover.control` and `cover.template.publish` are in-tree examples. `TEMPLATABLE_VALUE` with
+        `cg.templatable` stays for actions whose `play()` has real logic beyond forwarding values.
+
     *   **Conditions:**
         ```cpp
         template<typename... Ts> class MyCondition : public Condition<Ts...> {
@@ -456,6 +470,19 @@ file does, and it is the authority when they disagree. The most useful starting
         Register with `automation.register_simple_condition("my_component.is_active", MyCondition, schema)`;
         `register_bare_condition`, `register_parented_condition` and the decorator follow the action rules.
 
+        **Conditions that only test their parent need no C++ class either.** Register them with
+        `register_apply_condition`; the expression is applied to the parent, and an `ApplyCall` compares
+        against config values.
+        ```python
+        automation.register_apply_condition("my_component.is_active", schema, "is_active()")
+        automation.register_apply_condition(
+            "my_component.state_is",
+            schema,
+            automation.ApplyCall("state == {}", ((CONF_STATE, cg.bool_),)),
+        )
+        ```
+        `cover.is_open`, `rtttl.is_playing` and `component.is_idle` are in-tree examples.
+
 *   **Type Hints:** Type-hint all function signatures, including test functions and config validators (e.g. `def validate_x(config: ConfigType) -> ConfigType:`, `def test_x() -> None:`). Import `ConfigType` from `esphome.types`.
 
 *   **Configuration Validation:**

CODEOWNERS

@@ -457,6 +457,7 @@ esphome/components/rtl87xx/* @kuba2k2
 esphome/components/rtttl/* @glmnet @ximex
 esphome/components/runtime_image/* @clydebarrow @guillempages @kahrendt
 esphome/components/runtime_stats/* @bdraco
+esphome/components/rx8025t/* @remcom
 esphome/components/rx8130/* @beormund
 esphome/components/safe_mode/* @jsuanet @kbx81 @paulmonigatti
 esphome/components/scd4x/* @martgras @sjtrny
@@ -548,6 +549,7 @@ esphome/components/sx127x/* @swoboda1337
 esphome/components/sy6970/* @linkedupbits
 esphome/components/syslog/* @clydebarrow
 esphome/components/t6615/* @tylermenezes
+esphome/components/tas2780/* @remcom
 esphome/components/tc74/* @sethgirvan
 esphome/components/tca9548a/* @andreashergert1984
 esphome/components/tca9555/* @mobrembski

docker/Dockerfile

@@ -22,16 +22,13 @@ RUN \
     -r /requirements.txt
 
 # Install the ESPHome Device Builder dashboard.
-RUN uv pip install --no-cache-dir esphome-device-builder==1.14.9
+RUN uv pip install --no-cache-dir esphome-device-builder==1.15.0
 
 RUN \
     platformio settings set enable_telemetry No \
     && platformio settings set check_platformio_interval 1000000 \
     && mkdir -p /piolibs
 
-COPY script/platformio_install_deps.py platformio.ini /
-RUN /platformio_install_deps.py /platformio.ini --libraries
-
 ARG BUILD_VERSION
 
 LABEL \

docker/ha-addon-rootfs/etc/s6-overlay/s6-rc.d/discovery/run

@@ -4,7 +4,6 @@
 # Home Assistant Add-on: ESPHome
 # Sends discovery information to Home Assistant.
 # ==============================================================================
-declare config
 declare port
 
 # We only disable it when disabled explicitly
@@ -19,14 +18,17 @@ port=$(bashio::addon.ingress_port)
 # Wait for the ESPHome Device Builder to become available
 bashio::net.wait_for "${port}" "127.0.0.1" 300
 
-config=$(\
-    bashio::var.json \
-        host "127.0.0.1" \
-        port "^${port}" \
-)
+# Send one discovery message; the config is a JSON string built with bashio::var.json.
+send_discovery() {
+    local service=$1
+    local config=$2
+    if bashio::discovery "${service}" "${config}" > /dev/null; then
+        bashio::log.info "Successfully send ${service} discovery information to Home Assistant."
+    else
+        bashio::log.error "${service} discovery message to Home Assistant failed!"
+    fi
+}
 
-if bashio::discovery "esphome" "${config}" > /dev/null; then
-    bashio::log.info "Successfully send discovery information to Home Assistant."
-else
-    bashio::log.error "Discovery message to Home Assistant failed!"
-fi
+send_discovery "esphome" "$(bashio::var.json host "127.0.0.1" port "^${port}")"
+# The Device Builder MCP server, consumed by Home Assistant's mcp integration.
+send_discovery "mcp" "$(bashio::var.json url "http://127.0.0.1:${port}/api/mcp")"

docker/test_configs/bk72xx-arduino.yaml

@@ -5,3 +5,15 @@ bk72xx:
   board: generic-bk7231n-qfn32-tuya
 
 logger:
+
+wifi:
+  ssid: MySSID
+  password: password1
+  ap:
+
+# mqtt and captive_portal together pull in AsyncTCP and ESPAsyncWebServer;
+# a stray ESP32 AsyncTCP copy on the library search path breaks this build
+captive_portal:
+
+mqtt:
+  broker: 192.168.178.84

esphome/automation.py

@@ -1,5 +1,8 @@
+from collections.abc import Callable
 from dataclasses import dataclass, field
 import logging
+import string
+from typing import Any
 
 import esphome.codegen as cg
 import esphome.config_validation as cv
@@ -18,15 +21,17 @@ from esphome.const import (
     CONF_TYPE_ID,
     CONF_UPDATE_INTERVAL,
 )
-from esphome.core import ID, Lambda
+from esphome.core import CORE, ID, EsphomeError, Lambda
 from esphome.cpp_generator import (
+    FlashStringLiteral,
     LambdaExpression,
     MockObj,
     MockObjClass,
     TemplateArgsType,
+    call_lambda,
 )
 from esphome.schema_extractors import SCHEMA_EXTRACT, schema_extractor
-from esphome.types import ConfigType
+from esphome.types import ConfigType, SafeExpType
 from esphome.util import Registry
 
 
@@ -57,6 +62,7 @@ def maybe_conf(conf, *validators):
         with cv.remove_prepend_path([conf]):
             return validator({conf: value})
 
+    validate.inner_schema = validator
     return validate
 
 
@@ -207,6 +213,291 @@ validate_action_list = cv.validate_registry("action", ACTION_REGISTRY)
 validate_condition = cv.validate_registry_entry("condition", CONDITION_REGISTRY)
 validate_condition_list = cv.validate_registry("condition", CONDITION_REGISTRY)
 
+ApplyAction = cg.esphome_ns.class_("ApplyAction", Action)
+ApplyCondition = cg.esphome_ns.class_("ApplyCondition", Condition)
+
+
+def flash_string(config: ConfigType, value: str) -> str:
+    """Default renderer for ``std::string`` constants; copies the literal out of flash on ESP8266."""
+    if CORE.is_esp8266:
+        return f"progmem_string({FlashStringLiteral(value)})"
+    return str(cg.safe_exp(value))
+
+
+def literal_with_length(config: ConfigType, value: str) -> str:
+    """Renderer for a ``(const char *, size_t)`` target: a plain literal plus its byte length.
+
+    The target compares or copies the bytes in place, so it needs the RAM literal rather than
+    the PROGMEM rendering on ESP8266, and the length saves a strlen.
+    """
+    return f"{cg.safe_exp(value)}, {len(value.encode('utf-8'))}"
+
+
+@dataclass(frozen=True)
+class ApplyCall:
+    """One statement from config keys, e.g. ``"set_range({}, {})"`` with ``((CONF_LOW, cg.float_), ...)``.
+
+    Each arg is ``(conf_key, type_)`` or ``(conf_key, type_, const_fn)``. A ``conf_key`` may be a
+    path into nested sections. A plain ``str`` ``type_`` is raw C++ type text and may use
+    ``{parent}``. ``const_fn(config, value)`` renders a constant's argument text; a lambda bypasses
+    it. The statement is skipped when none of its keys is set, always emitted when it has no
+    keys, and a partial set is a config error.
+    """
+
+    target: str
+    args: tuple[tuple[Any, ...], ...] = ()
+
+    def __post_init__(self) -> None:
+        fields = [
+            f for _, f, _, _ in string.Formatter().parse(self.target) if f is not None
+        ]
+        if any(fields):
+            raise ValueError(
+                f"apply target {self.target!r}: only bare {{}} placeholders"
+            )
+        if len(fields) != len(self.args):
+            raise ValueError(
+                f"apply target {self.target!r} has {len(fields)} "
+                f"placeholder(s) for {len(self.args)} config key(s)"
+            )
+        if any(len(arg) not in (2, 3) for arg in self.args):
+            raise ValueError(
+                f"apply target {self.target!r}: each arg is (conf_key, type_[, const_fn])"
+            )
+
+    @property
+    def members(self) -> list[tuple[Any, Any, Any]]:
+        """Each arg as ``(conf_key, type_, const_fn or None)``."""
+        return [
+            (arg[0], arg[1], arg[2] if len(arg) == 3 else None) for arg in self.args
+        ]
+
+
+@dataclass(frozen=True)
+class ApplyField:
+    """One config key forwarded as ``target(value)``, or as statement ``target`` when it has ``{}``.
+
+    Double a literal brace in a template. ``conf_key`` may be a path into nested sections.
+    ``type_`` may be a C++ type string using ``{parent}`` when the type is only known per
+    instance. ``const_fn(config, value)`` renders a constant's argument text when ``cg.safe_exp``
+    is not the right spelling (unit conversion belongs in the validator); a lambda bypasses it,
+    so the target must also take a plain ``type_``. An absent key emits nothing.
+    """
+
+    conf_key: str | tuple[str, ...]
+    target: str
+    type_: SafeExpType
+    const_fn: Callable[[ConfigType, Any], str] | None = None
+
+    def call(self) -> ApplyCall:
+        target = self.target if "{}" in self.target else f"{self.target}({{}})"
+        return ApplyCall(target, ((self.conf_key, self.type_, self.const_fn),))
+
+
+def _config_lookup(config: ConfigType, key: str | tuple[str, ...]) -> Any:
+    if isinstance(key, str):
+        return config.get(key)
+    for part in key:
+        if (config := config.get(part)) is None:
+            return None
+    return config
+
+
+def _dict_schema(schema: Any) -> Any:
+    """The dict-backed cv.Schema inside cv.All and maybe_* wrappers, or None; cv.Any is not inspected."""
+    if isinstance(schema, dict):
+        return cv.Schema(schema)
+    if isinstance(getattr(schema, "schema", None), dict):
+        return schema
+    if isinstance(schema, cv.All):
+        inner = schema.validators
+    else:
+        inner = (
+            getattr(schema, "inner_schema", None),
+        )  # maybe_conf / maybe_simple_value
+    for candidate in inner:
+        if candidate is not None and (found := _dict_schema(candidate)) is not None:
+            return found
+    return None
+
+
+def _check_key_in_schema(
+    name: str, schema: Any, conf_key: str | tuple[str, ...]
+) -> None:
+    """Reject a key path the schema does not have; a typo would otherwise be a silent no-op.
+
+    Only dict-backed schemas, also inside cv.All and maybe_* wrappers, can be checked.
+    """
+    for part in (conf_key,) if isinstance(conf_key, str) else conf_key:
+        if (schema := _dict_schema(schema)) is None:
+            return
+        markers = {
+            getattr(marker, "schema", marker): marker for marker in schema.schema
+        }
+        if part not in markers:
+            raise ValueError(f"{name}: config key {part!r} is not in the schema")
+        schema = schema.schema[markers[part]]
+
+
+async def _apply_parent(config: ConfigType, id_key: str = CONF_ID) -> str:
+    # Global-scope qualified so a trigger arg named like the id cannot shadow it.
+    return f"::{await cg.get_variable(config[id_key])}"
+
+
+def _apply_lambda_args(args: TemplateArgsType) -> TemplateArgsType:
+    # Must match ApplyAction::ApplyFn and ApplyCondition::CheckFn exactly for the function
+    # pointer conversion.
+    return [
+        (cg.RawExpression(f"const std::remove_cvref_t<{cg.safe_exp(t)}> &"), arg)
+        for t, arg in args
+    ]
+
+
+async def _render_values(
+    name: str,
+    target: str,
+    members: list[tuple[Any, Any, Any]],
+    values: list[Any],
+    config: ConfigType,
+    parent: str,
+    lambda_args: TemplateArgsType,
+    compare: bool = False,
+) -> list[str]:
+    """Render the argument text of one statement; every key must be present.
+
+    ``compare``: an inlined lambda expression is parenthesized so it binds as a whole
+    beside an operator.
+    """
+    if any(value is None for value in values):
+        keys = [key for key, _, _ in members]
+        raise EsphomeError(f"{name}: {target!r} needs all of {keys}")
+    exprs: list[str] = []
+    for (_, type_, const_fn), value in zip(members, values, strict=True):
+        if isinstance(value, Lambda):
+            if isinstance(type_, str):
+                type_ = cg.RawExpression(type_.format(parent=parent))
+            inner = await cg.process_lambda(value, lambda_args, return_type=type_)
+            expr = call_lambda(inner)
+            bare = compare and isinstance(expr, cg.RawExpression)
+            exprs.append(f"({expr})" if bare else str(expr))
+        elif const_fn is not None:
+            exprs.append(const_fn(config, value))
+        else:
+            exprs.append(str(cg.safe_exp(value)))
+    return exprs
+
+
+def _apply_values(config: ConfigType, members: list[tuple[Any, Any, Any]]) -> list[Any]:
+    return [_config_lookup(config, key) for key, _, _ in members]
+
+
+def register_apply_action(
+    name: str,
+    schema: cv.Schema,
+    *fields: ApplyField | ApplyCall,
+    call: str | None = None,
+    id_key: str = CONF_ID,
+) -> None:
+    """Register an action that only forwards config values to its parent, with no C++ class.
+
+    Generates one stateless function for ``ApplyAction<Ts...>``: the parent (read from
+    ``id_key``) and constants are baked in, lambdas are called inline with the trigger args.
+    With ``call`` every statement targets the call object ``auto apply_call = parent->call()``,
+    and ``apply_call.perform()`` is appended.
+    """
+    # An action stores the value, so a std::string constant stays in flash on ESP8266.
+    statements_spec = [
+        (
+            c.target,
+            [
+                (key, t, fn or (flash_string if t is cg.std_string else None))
+                for key, t, fn in c.members
+            ],
+        )
+        for c in (f if isinstance(f, ApplyCall) else f.call() for f in fields)
+    ]
+    _check_key_in_schema(name, schema, id_key)
+    for _, members in statements_spec:
+        for conf_key, _, _ in members:
+            _check_key_in_schema(name, schema, conf_key)
+
+    async def builder(
+        config: ConfigType,
+        action_id: ID,
+        template_arg: cg.TemplateArguments,
+        args: TemplateArgsType,
+    ) -> MockObj:
+        parent = await _apply_parent(config, id_key)
+        lambda_args = _apply_lambda_args(args)
+        receiver = "apply_call." if call else f"{parent}->"
+        statements: list[str] = []
+        for target, members in statements_spec:
+            values = _apply_values(config, members)
+            if members and all(value is None for value in values):
+                continue
+            exprs = await _render_values(
+                name, target, members, values, config, parent, lambda_args
+            )
+            statements.append(f"{receiver}{target.format(*exprs)};")
+        if call:
+            statements = [
+                f"auto apply_call = {parent}->{call}();",
+                *statements,
+                "apply_call.perform();",
+            ]
+        apply_lambda = LambdaExpression(
+            ["\n".join(statements)], lambda_args, capture="", return_type=cg.void
+        )
+        return cg.new_Pvariable(action_id, template_arg, apply_lambda)
+
+    register_action(name, ApplyAction, schema, synchronous=True)(builder)
+
+
+def register_apply_condition(
+    name: str, schema: cv.Schema, check: str | ApplyCall, id_key: str = CONF_ID
+) -> None:
+    """Register a condition that is one expression on its parent, with no C++ class.
+
+    ``check`` is applied to the parent: ``"is_playing()"`` becomes ``parent->is_playing()``; an
+    ``ApplyCall`` such as ``ApplyCall("state == {}", ((CONF_STATE, cg.bool_),))`` compares
+    against config values, all of which must be present. Write ``== false`` to negate.
+    String constants are plain literals, so compare a ``std::string`` or ``StringRef`` member.
+    Generates one stateless function for ``ApplyCondition<Ts...>``.
+    """
+    call = check if isinstance(check, ApplyCall) else ApplyCall(check)
+    members = call.members
+    _check_key_in_schema(name, schema, id_key)
+    for conf_key, _, _ in members:
+        _check_key_in_schema(name, schema, conf_key)
+
+    async def builder(
+        config: ConfigType,
+        condition_id: ID,
+        template_arg: cg.TemplateArguments,
+        args: TemplateArgsType,
+    ) -> MockObj:
+        parent = await _apply_parent(config, id_key)
+        lambda_args = _apply_lambda_args(args)
+        exprs = await _render_values(
+            name,
+            call.target,
+            members,
+            _apply_values(config, members),
+            config,
+            parent,
+            lambda_args,
+            compare=True,
+        )
+        check_lambda = LambdaExpression(
+            [f"return {parent}->{call.target.format(*exprs)};"],
+            lambda_args,
+            capture="",
+            return_type=cg.bool_,
+        )
+        return cg.new_Pvariable(condition_id, template_arg, check_lambda)
+
+    register_condition(name, ApplyCondition, schema)(builder)
+
 
 def validate_potentially_and_condition(value):
     if isinstance(value, list):
@@ -454,28 +745,15 @@ async def for_condition_to_code(
     return var
 
 
-@register_condition(
+register_apply_condition(
     "component.is_idle",
-    LambdaCondition,
     maybe_simple_id(
         {
             cv.Required(CONF_ID): cv.use_id(cg.Component),
         }
     ),
+    "is_idle()",
 )
-async def component_is_idle_condition_to_code(
-    config: ConfigType,
-    condition_id: ID,
-    template_arg: cg.TemplateArguments,
-    args: TemplateArgsType,
-) -> MockObj:
-    comp = await cg.get_variable(config[CONF_ID])
-    lambda_ = await cg.process_lambda(
-        Lambda(f"return {comp}->is_idle();"), args, return_type=bool
-    )
-    return new_lambda_pvariable(
-        condition_id, lambda_, StatelessLambdaCondition, template_arg
-    )
 
 
 @register_action(

esphome/codegen.py

@@ -64,7 +64,6 @@ from esphome.cpp_types import (  # noqa: F401
     Application,
     Component,
     ComponentPtr,
-    Controller,
     EntityBase,
     EntityCategory,
     ESPTime,

esphome/components/alarm_control_panel/__init__.py

@@ -41,10 +41,6 @@ StateAnyForwarder = alarm_control_panel_ns.class_("StateAnyForwarder")
 StateEnterForwarder = alarm_control_panel_ns.class_("StateEnterForwarder")
 AlarmControlPanelState = alarm_control_panel_ns.enum("AlarmControlPanelState")
 
-ArmAwayAction = alarm_control_panel_ns.class_("ArmAwayAction", automation.Action)
-ArmHomeAction = alarm_control_panel_ns.class_("ArmHomeAction", automation.Action)
-ArmNightAction = alarm_control_panel_ns.class_("ArmNightAction", automation.Action)
-DisarmAction = alarm_control_panel_ns.class_("DisarmAction", automation.Action)
 PendingAction = alarm_control_panel_ns.class_("PendingAction", automation.Action)
 TriggeredAction = alarm_control_panel_ns.class_("TriggeredAction", automation.Action)
 ChimeAction = alarm_control_panel_ns.class_("ChimeAction", automation.Action)
@@ -196,64 +192,20 @@ async def new_alarm_control_panel(config, *args):
     return var
 
 
-@automation.register_action(
-    "alarm_control_panel.arm_away",
-    ArmAwayAction,
-    ALARM_CONTROL_PANEL_ACTION_SCHEMA,
-    synchronous=True,
-)
-async def alarm_action_arm_away_to_code(config, action_id, template_arg, args):
-    paren = await cg.get_variable(config[CONF_ID])
-    var = cg.new_Pvariable(action_id, template_arg, paren)
-    if code_config := config.get(CONF_CODE):
-        templatable_ = await cg.templatable(code_config, args, cg.std_string)
-        cg.add(var.set_code(templatable_))
-    return var
-
-
-@automation.register_action(
-    "alarm_control_panel.arm_home",
-    ArmHomeAction,
-    ALARM_CONTROL_PANEL_ACTION_SCHEMA,
-    synchronous=True,
-)
-async def alarm_action_arm_home_to_code(config, action_id, template_arg, args):
-    paren = await cg.get_variable(config[CONF_ID])
-    var = cg.new_Pvariable(action_id, template_arg, paren)
-    if code_config := config.get(CONF_CODE):
-        templatable_ = await cg.templatable(code_config, args, cg.std_string)
-        cg.add(var.set_code(templatable_))
-    return var
-
-
-@automation.register_action(
-    "alarm_control_panel.arm_night",
-    ArmNightAction,
-    ALARM_CONTROL_PANEL_ACTION_SCHEMA,
-    synchronous=True,
-)
-async def alarm_action_arm_night_to_code(config, action_id, template_arg, args):
-    paren = await cg.get_variable(config[CONF_ID])
-    var = cg.new_Pvariable(action_id, template_arg, paren)
-    if CONF_CODE in config:
-        templatable_ = await cg.templatable(config[CONF_CODE], args, cg.std_string)
-        cg.add(var.set_code(templatable_))
-    return var
-
-
-@automation.register_action(
-    "alarm_control_panel.disarm",
-    DisarmAction,
-    ALARM_CONTROL_PANEL_ACTION_SCHEMA,
-    synchronous=True,
-)
-async def alarm_action_disarm_to_code(config, action_id, template_arg, args):
-    paren = await cg.get_variable(config[CONF_ID])
-    var = cg.new_Pvariable(action_id, template_arg, paren)
-    if code_config := config.get(CONF_CODE):
-        templatable_ = await cg.templatable(code_config, args, cg.std_string)
-        cg.add(var.set_code(templatable_))
-    return var
+# Mirrors AlarmControlPanel::arm_with_code_: arm first, set the code only when given.
+for _name, _arm in (
+    ("alarm_control_panel.arm_away", "arm_away()"),
+    ("alarm_control_panel.arm_home", "arm_home()"),
+    ("alarm_control_panel.arm_night", "arm_night()"),
+    ("alarm_control_panel.disarm", "disarm()"),
+):
+    automation.register_apply_action(
+        _name,
+        ALARM_CONTROL_PANEL_ACTION_SCHEMA,
+        automation.ApplyCall(_arm),
+        automation.ApplyField(CONF_CODE, "set_code", cg.std_string),
+        call="make_call",
+    )
 
 
 @automation.register_action(

esphome/components/alarm_control_panel/automation.h

@@ -27,54 +27,6 @@ static_assert(std::is_trivially_copyable_v<StateAnyForwarder>);
 static_assert(sizeof(StateEnterForwarder<ACP_STATE_TRIGGERED>) <= sizeof(void *));
 static_assert(std::is_trivially_copyable_v<StateEnterForwarder<ACP_STATE_TRIGGERED>>);
 
-template<typename... Ts> class ArmAwayAction final : public Action<Ts...> {
- public:
-  explicit ArmAwayAction(AlarmControlPanel *alarm_control_panel) : alarm_control_panel_(alarm_control_panel) {}
-
-  TEMPLATABLE_VALUE(std::string, code)
-
-  void play(const Ts &...x) override { this->alarm_control_panel_->arm_away(this->code_.optional_value(x...)); }
-
- protected:
-  AlarmControlPanel *alarm_control_panel_;
-};
-
-template<typename... Ts> class ArmHomeAction final : public Action<Ts...> {
- public:
-  explicit ArmHomeAction(AlarmControlPanel *alarm_control_panel) : alarm_control_panel_(alarm_control_panel) {}
-
-  TEMPLATABLE_VALUE(std::string, code)
-
-  void play(const Ts &...x) override { this->alarm_control_panel_->arm_home(this->code_.optional_value(x...)); }
-
- protected:
-  AlarmControlPanel *alarm_control_panel_;
-};
-
-template<typename... Ts> class ArmNightAction final : public Action<Ts...> {
- public:
-  explicit ArmNightAction(AlarmControlPanel *alarm_control_panel) : alarm_control_panel_(alarm_control_panel) {}
-
-  TEMPLATABLE_VALUE(std::string, code)
-
-  void play(const Ts &...x) override { this->alarm_control_panel_->arm_night(this->code_.optional_value(x...)); }
-
- protected:
-  AlarmControlPanel *alarm_control_panel_;
-};
-
-template<typename... Ts> class DisarmAction final : public Action<Ts...> {
- public:
-  explicit DisarmAction(AlarmControlPanel *alarm_control_panel) : alarm_control_panel_(alarm_control_panel) {}
-
-  TEMPLATABLE_VALUE(std::string, code)
-
-  void play(const Ts &...x) override { this->alarm_control_panel_->disarm(this->code_.optional_value(x...)); }
-
- protected:
-  AlarmControlPanel *alarm_control_panel_;
-};
-
 template<typename... Ts> class PendingAction final : public Action<Ts...> {
  public:
   explicit PendingAction(AlarmControlPanel *alarm_control_panel) : alarm_control_panel_(alarm_control_panel) {}

esphome/components/api/__init__.py

@@ -81,7 +81,7 @@ def AUTO_LOAD(config: ConfigType) -> list[str]:
 
 
 api_ns = cg.esphome_ns.namespace("api")
-APIServer = api_ns.class_("APIServer", cg.Component, cg.Controller)
+APIServer = api_ns.class_("APIServer", cg.Component)
 HomeAssistantServiceCallAction = api_ns.class_(
     "HomeAssistantServiceCallAction", automation.Action
 )
@@ -462,8 +462,7 @@ async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
 
-    # Track controller registration for StaticVector sizing
-    CORE.register_controller()
+    CORE.register_controller(var)
 
     # Request a log listener slot for API log streaming
     request_log_listener()

esphome/components/api/api_connection.cpp

@@ -600,7 +600,7 @@ bool APIConnection::send_light_state(light::LightState *light) {
 uint16_t APIConnection::try_send_light_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size) {
   auto *light = static_cast<light::LightState *>(entity);
   LightStateResponse resp;
-  auto values = light->remote_values;
+  auto values = light->get_reported_values();
   auto color_mode = values.get_color_mode();
   resp.state = values.is_on();
   resp.color_mode = static_cast<enums::ColorMode>(color_mode);
@@ -2267,7 +2267,12 @@ bool APIConnection::send_message_(uint32_t payload_size, uint16_t message_type,
   // Capacity reserved above, cannot fail
   (void) shared_buf.resize(write_start + payload_size);
   ProtoWriteBuffer buffer{&shared_buf, write_start};
-  encode_fn(msg, buffer PROTO_ENCODE_DEBUG_INIT(&shared_buf));
+  uint8_t *end = encode_fn(msg, buffer PROTO_ENCODE_DEBUG_INIT(&shared_buf));
+#ifdef ESPHOME_DEBUG_API
+  proto_check_encode_end(end, shared_buf.data() + shared_buf.size());
+#else
+  (void) end;
+#endif
   return this->send_buffer(ProtoWriteBuffer{&shared_buf}, message_type);
 }
 // encode_to_buffer is defined inline in api_connection.h (ESPHOME_ALWAYS_INLINE)

esphome/components/api/api_connection.h

@@ -346,11 +346,7 @@ class APIConnection final : public APIServerConnectionBase {
   /// Returns false as soon as the TCP buffer is full. Marked nodiscard so we
   /// have no silent failures: every caller must handle (or log) a refusal.
   template<typename T> [[nodiscard]] bool send_message(const T &msg) {
-    if constexpr (T::ESTIMATED_SIZE == 0) {
-      return this->send_message_(0, T::MESSAGE_TYPE, &encode_msg_noop, &msg);
-    } else {
-      return this->send_message_(msg.calculate_size(), T::MESSAGE_TYPE, &proto_encode_msg<T>, &msg);
-    }
+    return this->send_message_(T::calc_size_msg(&msg), T::MESSAGE_TYPE, &T::encode_msg, &msg);
   }
 
   /// Clear the shared write buffer and reserve space for the first message.
@@ -406,16 +402,6 @@ class APIConnection final : public APIServerConnectionBase {
   void process_state_subscriptions_();
 #endif
 
-  // Size thunk — converts void* back to concrete type for direct calculate_size() call
-  template<typename T> static uint32_t calc_size(const void *msg) {
-    return static_cast<const T *>(msg)->calculate_size();
-  }
-
-  // Shared no-op encode thunk for empty messages (ESTIMATED_SIZE == 0)
-  static uint8_t *encode_msg_noop(const void *, ProtoWriteBuffer &buf PROTO_ENCODE_DEBUG_PARAM) {
-    return buf.get_pos();
-  }
-
   // Non-template buffer management for send_message
   bool send_message_(uint32_t payload_size, uint16_t message_type, MessageEncodeFn encode_fn, const void *msg);
 
@@ -434,11 +420,7 @@ class APIConnection final : public APIServerConnectionBase {
   // Hot paths (state/info) go through fill_and_encode_entity_state/info instead.
   // batch_message_type_ is already set by dispatch_message_ before reaching here.
   template<typename T> static uint16_t encode_message_to_buffer(T &msg, APIConnection *conn, uint32_t remaining_size) {
-    if constexpr (T::ESTIMATED_SIZE == 0) {
-      return encode_to_buffer_slow(0, &encode_msg_noop, &msg, conn, remaining_size);
-    } else {
-      return encode_to_buffer_slow(msg.calculate_size(), &proto_encode_msg<T>, &msg, conn, remaining_size);
-    }
+    return encode_to_buffer_slow(T::calc_size_msg(&msg), &T::encode_msg, &msg, conn, remaining_size);
   }
 
   // Non-template core — fills state fields and encodes
@@ -450,7 +432,7 @@ class APIConnection final : public APIServerConnectionBase {
   template<typename T>
   static uint16_t fill_and_encode_entity_state(EntityBase *entity, T &msg, APIConnection *conn,
                                                uint32_t remaining_size) {
-    return fill_and_encode_entity_state(entity, msg, &calc_size<T>, &proto_encode_msg<T>, conn, remaining_size);
+    return fill_and_encode_entity_state(entity, msg, &T::calc_size_msg, &T::encode_msg, conn, remaining_size);
   }
 
   // Non-template core — fills info fields, allocates buffers, and encodes
@@ -462,7 +444,7 @@ class APIConnection final : public APIServerConnectionBase {
   template<typename T>
   static uint16_t fill_and_encode_entity_info(EntityBase *entity, T &msg, APIConnection *conn,
                                               uint32_t remaining_size) {
-    return fill_and_encode_entity_info(entity, msg, &calc_size<T>, &proto_encode_msg<T>, conn, remaining_size);
+    return fill_and_encode_entity_info(entity, msg, &T::calc_size_msg, &T::encode_msg, conn, remaining_size);
   }
 
   // Non-template core — fills device_class, then delegates to fill_and_encode_entity_info
@@ -476,8 +458,8 @@ class APIConnection final : public APIServerConnectionBase {
   static uint16_t fill_and_encode_entity_info_with_device_class(EntityBase *entity, T &msg,
                                                                 StringRef &device_class_field, APIConnection *conn,
                                                                 uint32_t remaining_size) {
-    return fill_and_encode_entity_info_with_device_class(entity, msg, device_class_field, &calc_size<T>,
-                                                         &proto_encode_msg<T>, conn, remaining_size);
+    return fill_and_encode_entity_info_with_device_class(entity, msg, device_class_field, &T::calc_size_msg,
+                                                         &T::encode_msg, conn, remaining_size);
   }
 
 #ifdef USE_VOICE_ASSISTANT

esphome/components/api/api_connection_buffer.h

@@ -46,7 +46,13 @@ inline uint16_t ESPHOME_ALWAYS_INLINE APIConnection::encode_to_buffer(uint32_t c
     return 0;
   }
   ProtoWriteBuffer buffer{&shared_buf, shared_buf.size() - calculated_size};
-  encode_fn(msg, buffer PROTO_ENCODE_DEBUG_INIT(&shared_buf));
+  uint8_t *end = encode_fn(msg, buffer PROTO_ENCODE_DEBUG_INIT(&shared_buf));
+#ifdef ESPHOME_DEBUG_API
+  // A body that writes fewer bytes than calculate_size() promised would ship stale buffer bytes
+  proto_check_encode_end(end, shared_buf.data() + shared_buf.size());
+#else
+  (void) end;
+#endif
 
   return total_calculated_size;
 }

esphome/components/api/api_frame_helper_noise.cpp

@@ -5,16 +5,13 @@
 #include "esphome/components/noise/noise.h"
 #include "esphome/core/application.h"
 #include "esphome/core/entity_base.h"
+#include "esphome/core/hal.h"
 #include "esphome/core/helpers.h"
 #include "esphome/core/log.h"
 #include "proto.h"
 #include <cstring>
 #include <cinttypes>
 
-#ifdef USE_ESP8266
-#include <pgmspace.h>
-#endif
-
 namespace esphome::api {
 
 using noise::noise_err_to_logstr;
@@ -26,11 +23,7 @@ static_assert(MAX_HANDSHAKE_SIZE == noise::MAX_HANDSHAKE_SIZE,
               "api and noise component handshake size limits must match");
 
 static const char *const TAG = "api.noise";
-#ifdef USE_ESP8266
 static constexpr char PROLOGUE_INIT[] PROGMEM = "NoiseAPIInit";
-#else
-static const char *const PROLOGUE_INIT = "NoiseAPIInit";
-#endif
 static constexpr size_t PROLOGUE_INIT_LEN = 12;  // strlen("NoiseAPIInit")
 
 // Maximum bytes to log in hex format (168 * 3 = 504, under TX buffer size of 512)
@@ -72,11 +65,7 @@ APIError APINoiseFrameHelper::init() {
     state_ = State::FAILED;
     return APIError::OUT_OF_MEMORY;
   }
-#ifdef USE_ESP8266
-  memcpy_P(dst, PROLOGUE_INIT, PROLOGUE_INIT_LEN);
-#else
-  std::memcpy(dst, PROLOGUE_INIT, PROLOGUE_INIT_LEN);
-#endif
+  progmem_memcpy(dst, PROLOGUE_INIT, PROLOGUE_INIT_LEN);
 
   state_ = State::CLIENT_HELLO;
   return APIError::OK;

esphome/components/api/api_server.cpp

@@ -5,7 +5,6 @@
 #include "api_connection.h"
 #include "esphome/components/network/util.h"
 #include "esphome/core/application.h"
-#include "esphome/core/controller_registry.h"
 #include "esphome/core/defines.h"
 #include "esphome/core/hal.h"
 #include "esphome/core/log.h"
@@ -61,8 +60,6 @@ void APIServer::socket_failed_(const LogString *msg) {
 }
 
 void APIServer::setup() {
-  ControllerRegistry::register_controller(this);
-
 #ifdef USE_API_NOISE
   // Always reserve the slot: flash preferences are positional on esp8266, so
   // a yaml key build must keep the layout of a runtime key build
@@ -455,8 +452,9 @@ void APIServer::send_homeassistant_action(const HomeassistantActionRequest &call
     // Home Assistant subscribes to actions shortly *after* authenticating, so actions
     // fired right at connection time (on_client_connected, on_time_sync, ...) can
     // arrive before the subscription and are lost - warn instead of failing silently.
-    ESP_LOGW(TAG, "Home Assistant %s '%s' dropped; %s",
-             call.is_event ? LOG_STR_LITERAL("event") : LOG_STR_LITERAL("action"), call.service.c_str(),
+    ESP_LOGW(TAG, "Home Assistant %s '%.*s' dropped; %s",
+             call.is_event ? LOG_STR_LITERAL("event") : LOG_STR_LITERAL("action"),
+             static_cast<int>(call.service.size()), call.service.empty() ? "" : call.service.c_str(),
              this->is_connected() ? LOG_STR_LITERAL("client has not subscribed to actions (yet)")
                                   : LOG_STR_LITERAL("no client connected"));
   }

esphome/components/api/api_server.h

@@ -14,7 +14,7 @@
 #include "esphome/components/socket/socket.h"
 #include "esphome/core/automation.h"
 #include "esphome/core/component.h"
-#include "esphome/core/controller.h"
+#include "esphome/core/entity_includes.h"
 #include "esphome/core/log.h"
 #include "esphome/core/string_ref.h"
 #ifdef USE_PROVISIONING
@@ -49,8 +49,7 @@ struct SavedNoisePsk {
 bool load_saved_noise_psk(noise::psk_t &out);
 #endif
 
-class APIServer final : public Component,
-                        public Controller
+class APIServer final : public Component
 #ifdef USE_CAMERA
     ,
                         public camera::CameraListener
@@ -94,58 +93,58 @@ class APIServer final : public Component,
 
   void handle_disconnect(APIConnection *conn);
 #ifdef USE_BINARY_SENSOR
-  void on_binary_sensor_update(binary_sensor::BinarySensor *obj) override;
+  void on_binary_sensor_update(binary_sensor::BinarySensor *obj);
 #endif
 #ifdef USE_COVER
-  void on_cover_update(cover::Cover *obj) override;
+  void on_cover_update(cover::Cover *obj);
 #endif
 #ifdef USE_FAN
-  void on_fan_update(fan::Fan *obj) override;
+  void on_fan_update(fan::Fan *obj);
 #endif
 #ifdef USE_LIGHT
-  void on_light_update(light::LightState *obj) override;
+  void on_light_update(light::LightState *obj);
 #endif
 #ifdef USE_SENSOR
-  void on_sensor_update(sensor::Sensor *obj) override;
+  void on_sensor_update(sensor::Sensor *obj);
 #endif
 #ifdef USE_SWITCH
-  void on_switch_update(switch_::Switch *obj) override;
+  void on_switch_update(switch_::Switch *obj);
 #endif
 #ifdef USE_TEXT_SENSOR
-  void on_text_sensor_update(text_sensor::TextSensor *obj) override;
+  void on_text_sensor_update(text_sensor::TextSensor *obj);
 #endif
 #ifdef USE_CLIMATE
-  void on_climate_update(climate::Climate *obj) override;
+  void on_climate_update(climate::Climate *obj);
 #endif
 #ifdef USE_NUMBER
-  void on_number_update(number::Number *obj) override;
+  void on_number_update(number::Number *obj);
 #endif
 #ifdef USE_DATETIME_DATE
-  void on_date_update(datetime::DateEntity *obj) override;
+  void on_date_update(datetime::DateEntity *obj);
 #endif
 #ifdef USE_DATETIME_TIME
-  void on_time_update(datetime::TimeEntity *obj) override;
+  void on_time_update(datetime::TimeEntity *obj);
 #endif
 #ifdef USE_DATETIME_DATETIME
-  void on_datetime_update(datetime::DateTimeEntity *obj) override;
+  void on_datetime_update(datetime::DateTimeEntity *obj);
 #endif
 #ifdef USE_TEXT
-  void on_text_update(text::Text *obj) override;
+  void on_text_update(text::Text *obj);
 #endif
 #ifdef USE_SELECT
-  void on_select_update(select::Select *obj) override;
+  void on_select_update(select::Select *obj);
 #endif
 #ifdef USE_LOCK
-  void on_lock_update(lock::Lock *obj) override;
+  void on_lock_update(lock::Lock *obj);
 #endif
 #ifdef USE_VALVE
-  void on_valve_update(valve::Valve *obj) override;
+  void on_valve_update(valve::Valve *obj);
 #endif
 #ifdef USE_MEDIA_PLAYER
-  void on_media_player_update(media_player::MediaPlayer *obj) override;
+  void on_media_player_update(media_player::MediaPlayer *obj);
 #endif
 #ifdef USE_WATER_HEATER
-  void on_water_heater_update(water_heater::WaterHeater *obj) override;
+  void on_water_heater_update(water_heater::WaterHeater *obj);
 #endif
 #ifdef USE_API_HOMEASSISTANT_SERVICES
   void send_homeassistant_action(const HomeassistantActionRequest &call);
@@ -188,13 +187,13 @@ class APIServer final : public Component,
 #endif
 
 #ifdef USE_ALARM_CONTROL_PANEL
-  void on_alarm_control_panel_update(alarm_control_panel::AlarmControlPanel *obj) override;
+  void on_alarm_control_panel_update(alarm_control_panel::AlarmControlPanel *obj);
 #endif
 #ifdef USE_EVENT
-  void on_event(event::Event *obj) override;
+  void on_event(event::Event *obj);
 #endif
 #ifdef USE_UPDATE
-  void on_update(update::UpdateEntity *obj) override;
+  void on_update(update::UpdateEntity *obj);
 #endif
 #ifdef USE_ZWAVE_PROXY
   void on_zwave_proxy_request(const ZWaveProxyRequest &msg);

esphome/components/api/proto.cpp

@@ -195,6 +195,12 @@ void proto_check_bounds_failed(const uint8_t *pos, size_t bytes, const uint8_t *
   ESP_LOGE(TAG, "Proto encode bounds check failed in %s: need %zu bytes, %td available", caller, bytes, end - pos);
   abort();
 }
+void proto_check_encode_end(const uint8_t *end, const uint8_t *expected) {
+  if (end == expected)
+    return;
+  ESP_LOGE(TAG, "Proto encode ended %td bytes off the calculated size", end - expected);
+  abort();
+}
 void ProtoWriteBuffer::debug_check_bounds_(size_t bytes, const char *caller) {
   if (this->pos_ + bytes > this->buffer_->data() + this->buffer_->size()) {
     ESP_LOGE(TAG, "ProtoWriteBuffer bounds check failed in %s: bytes=%zu offset=%td buf_size=%zu", caller, bytes,
@@ -210,77 +216,78 @@ void ProtoWriteBuffer::debug_check_encode_size_(uint32_t field_id, uint32_t expe
 
 #endif
 
-void ProtoDecodableMessage::decode(const uint8_t *buffer, size_t length) {
+void ProtoDecodableMessage::decode_fields(void *msg, const uint8_t *buffer, size_t length, DecodeFieldFn field) {
   const uint8_t *ptr = buffer;
   const uint8_t *end = buffer + length;
 
-  while (ptr < end) {
-    // Parse field header - ptr < end guarantees len >= 1
+  // Single-byte varints dominate, so that case advances the cursor inline.
+  auto read_varint = [&](proto_varint_value_t &value) ESPHOME_ALWAYS_INLINE {
+    if (ptr == end)
+      return false;
+    if (*ptr < 0x80) [[likely]] {
+      value = *ptr++;
+      return true;
+    }
     auto res = ProtoVarInt::parse_non_empty(ptr, end - ptr);
-    if (!res.has_value()) {
+    if (!res.has_value())
+      return false;
+    value = res.value;
+    ptr += res.consumed;
+    return true;
+  };
+
+  while (ptr < end) {
+    proto_varint_value_t tag_value;
+    if (!read_varint(tag_value)) {
       ESP_LOGV(TAG, "Invalid field start at offset %ld", (long) (ptr - buffer));
       return;
     }
 
-    uint32_t tag = static_cast<uint32_t>(res.value);
+    uint32_t tag = static_cast<uint32_t>(tag_value);
     uint32_t field_type = tag & WIRE_TYPE_MASK;
-    uint32_t field_id = tag >> 3;
-    ptr += res.consumed;
+    // Length-delimited fields move this past the length prefix
+    const uint8_t *data = ptr;
+    proto_varint_value_t scalar;
 
-    switch (field_type) {
-      case WIRE_TYPE_VARINT: {  // VarInt
-        res = ProtoVarInt::parse(ptr, end - ptr);
-        if (!res.has_value()) {
-          ESP_LOGV(TAG, "Invalid VarInt at offset %ld", (long) (ptr - buffer));
-          return;
-        }
-        if (!this->decode_varint(field_id, res.value)) {
-          ESP_LOGV(TAG, "Cannot decode VarInt field %" PRIu32 " with value %" PRIu64 "!", field_id,
-                   static_cast<uint64_t>(res.value));
-        }
-        ptr += res.consumed;
-        break;
-      }
-      case WIRE_TYPE_LENGTH_DELIMITED: {  // Length-delimited
-        res = ProtoVarInt::parse(ptr, end - ptr);
-        if (!res.has_value()) {
-          ESP_LOGV(TAG, "Invalid Length Delimited at offset %ld", (long) (ptr - buffer));
-          return;
-        }
-        uint32_t field_length = static_cast<uint32_t>(res.value);
-        ptr += res.consumed;
-        if (field_length > static_cast<size_t>(end - ptr)) {
-          ESP_LOGV(TAG, "Out-of-bounds Length Delimited at offset %ld", (long) (ptr - buffer));
-          return;
-        }
-        if (!this->decode_length(field_id, ProtoLengthDelimited(ptr, field_length))) {
-          ESP_LOGV(TAG, "Cannot decode Length Delimited field %" PRIu32 "!", field_id);
-        }
-        ptr += field_length;
-        break;
-      }
-      case WIRE_TYPE_FIXED32: {  // 32-bit
-        if (end - ptr < 4) {
-          ESP_LOGV(TAG, "Out-of-bounds Fixed32-bit at offset %ld", (long) (ptr - buffer));
-          return;
-        }
-        uint32_t val;
-#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
-        // Protobuf fixed32 is little-endian — direct load on LE platforms
-        memcpy(&val, ptr, 4);
-#else
-        val = encode_uint32(ptr[3], ptr[2], ptr[1], ptr[0]);
-#endif
-        if (!this->decode_32bit(field_id, Proto32Bit(val))) {
-          ESP_LOGV(TAG, "Cannot decode 32-bit field %" PRIu32 " with value %" PRIu32 "!", field_id, val);
-        }
-        ptr += 4;
-        break;
-      }
-      default:
-        ESP_LOGV(TAG, "Invalid field type %" PRIu32 " at offset %ld", field_type, (long) (ptr - buffer));
+    if (field_type == WIRE_TYPE_VARINT) [[likely]] {
+      if (!read_varint(scalar)) {
+        ESP_LOGV(TAG, "Invalid VarInt at offset %ld", (long) (ptr - buffer));
         return;
+      }
+    } else {
+      switch (field_type) {
+        case WIRE_TYPE_LENGTH_DELIMITED: {
+          proto_varint_value_t length_value;
+          if (!read_varint(length_value)) {
+            ESP_LOGV(TAG, "Invalid Length Delimited at offset %ld", (long) (ptr - buffer));
+            return;
+          }
+          uint32_t field_length = static_cast<uint32_t>(length_value);
+          if (field_length > static_cast<size_t>(end - ptr)) {
+            ESP_LOGV(TAG, "Out-of-bounds Length Delimited at offset %ld", (long) (ptr - buffer));
+            return;
+          }
+          data = ptr;
+          scalar = field_length;
+          ptr += field_length;
+          break;
+        }
+        case WIRE_TYPE_FIXED32: {
+          if (end - ptr < 4) {
+            ESP_LOGV(TAG, "Out-of-bounds Fixed32-bit at offset %ld", (long) (ptr - buffer));
+            return;
+          }
+          // Byte loads instead of memcpy: ESP-IDF passes -fno-builtin-memcpy, which made this a call
+          scalar = encode_uint32(ptr[3], ptr[2], ptr[1], ptr[0]);
+          ptr += 4;
+          break;
+        }
+        default:
+          ESP_LOGV(TAG, "Invalid field type %" PRIu32 " at offset %ld", field_type, (long) (ptr - buffer));
+          return;
+      }
     }
+    field(msg, tag, data, scalar);
   }
 }
 

esphome/components/api/proto.h

@@ -10,6 +10,7 @@
 
 #include <cassert>
 #include <cstring>
+#include <type_traits>
 #include <vector>
 
 #ifdef ESPHOME_LOG_HAS_VERY_VERBOSE
@@ -170,40 +171,43 @@ class ProtoVarInt {
 class ProtoMessage;
 class ProtoSize;
 
-class ProtoLengthDelimited {
+/// Case label for decode_field(): the wire tag of a field, so a field that arrives with another wire
+/// type matches no case.
+constexpr uint32_t proto_tag(uint32_t field_id, uint32_t wire_type) { return (field_id << 3) | wire_type; }
+
+/// One decoded field: the payload pointer and a scalar holding the varint or fixed32 value, or the
+/// length of a length-delimited field. The wire type in the tag says which applies; accessors do not check.
+class ProtoFieldValue {
  public:
-  explicit ProtoLengthDelimited(const uint8_t *value, size_t length) : value_(value), length_(length) {}
-  std::string as_string() const { return std::string(reinterpret_cast<const char *>(this->value_), this->length_); }
+  ProtoFieldValue(const uint8_t *data, proto_varint_value_t scalar) : data_(data), scalar_(scalar) {}
 
-  // Direct access to raw data without string allocation
-  const uint8_t *data() const { return this->value_; }
-  size_t size() const { return this->length_; }
+  proto_varint_value_t as_varint() const { return this->scalar_; }
+  // A bool is sent as 0 or 1, so the low word is enough and saves a second compare with 64 bit varints
+  bool as_bool() const { return static_cast<uint32_t>(this->scalar_) != 0; }
 
-  /// Decode the length-delimited data into a message instance.
+  // Length-delimited accessors
+  const uint8_t *data() const { return this->data_; }
+  size_t size() const { return static_cast<size_t>(this->scalar_); }
+  std::string as_string() const { return std::string(reinterpret_cast<const char *>(this->data_), this->size()); }
+  /// Decode the length-delimited payload into a message instance.
   /// Template preserves concrete type so decode() resolves statically.
-  template<typename T> void decode_to_message(T &msg) const;
+  template<typename T> void decode_to_message(T &msg) const { msg.decode(this->data_, this->size()); }
 
- protected:
-  const uint8_t *const value_;
-  const size_t length_;
-};
-
-class Proto32Bit {
- public:
-  explicit Proto32Bit(uint32_t value) : value_(value) {}
-  uint32_t as_fixed32() const { return this->value_; }
-  int32_t as_sfixed32() const { return static_cast<int32_t>(this->value_); }
+  // Fixed32 accessors
+  uint32_t as_fixed32() const { return static_cast<uint32_t>(this->scalar_); }
+  int32_t as_sfixed32() const { return static_cast<int32_t>(this->as_fixed32()); }
   float as_float() const {
     union {
       uint32_t raw;
       float value;
     } s{};
-    s.raw = this->value_;
+    s.raw = this->as_fixed32();
     return s.value;
   }
 
- protected:
-  const uint32_t value_;
+ private:
+  const uint8_t *data_;
+  proto_varint_value_t scalar_;
 };
 
 // NOTE: Proto64Bit class removed - wire type 1 (64-bit fixed) not supported
@@ -221,6 +225,9 @@ class Proto32Bit {
       proto_check_bounds_failed(pos, n, proto_debug_end_, __builtin_FUNCTION()); \
   } while (0)
 void proto_check_bounds_failed(const uint8_t *pos, size_t bytes, const uint8_t *end, const char *caller);
+/// Aborts unless an encode body ended exactly where calculate_size() promised. A plain check rather than
+/// assert(), so NDEBUG cannot switch it off.
+void proto_check_encode_end(const uint8_t *end, const uint8_t *expected);
 #else
 #define PROTO_ENCODE_DEBUG_PARAM
 #define PROTO_ENCODE_DEBUG_ARG
@@ -252,7 +259,7 @@ class ProtoWriteBuffer {
    *
    * Following https://protobuf.dev/programming-guides/encoding/#structure
    */
-  void encode_field_raw(uint32_t field_id, uint32_t type) { this->encode_varint_raw((field_id << 3) | type); }
+  void encode_field_raw(uint32_t field_id, uint32_t type) { this->encode_varint_raw(proto_tag(field_id, type)); }
   /// Single-pass encode for repeated submessage elements.
   /// Thin template wrapper; all buffer work is in the non-template core.
   template<typename T> void encode_sub_message(uint32_t field_id, const T &value);
@@ -287,19 +294,31 @@ class ProtoWriteBuffer {
   uint8_t *pos_;
 };
 
+// A four byte unaligned store is a memcpy call on ESP-IDF (-fno-builtin-memcpy) and on ARM cores without
+// unaligned access (Cortex-M0+, ARM9), so those targets share one outlined byte store helper per fixed32
+// field. Elsewhere the write inlines to a single store, or on ESP8266 to a few stores that measured
+// faster than a call, so it stays inline.
+#if defined(USE_ESP32) || (defined(__arm__) && !defined(__ARM_FEATURE_UNALIGNED))
+#define PROTO_OUTLINE_FOR_SIZE __attribute__((noinline))
+#define PROTO_FIXED32_BYTE_STORES true
+#else
+#define PROTO_OUTLINE_FOR_SIZE inline
+#define PROTO_FIXED32_BYTE_STORES false
+#endif
+
 // Varint encoding thresholds — used by both proto_encode_* free functions and ProtoSize.
 constexpr uint32_t VARINT_MAX_1_BYTE = 1 << 7;   // 128
 constexpr uint32_t VARINT_MAX_2_BYTE = 1 << 14;  // 16384
 
-/// Static encode helpers for generated encode() functions.
-/// Generated code hoists buffer.pos_ into a local uint8_t *__restrict__ pos,
-/// then calls these methods which take pos by reference. No struct, no overhead.
-/// For sub-messages, pos is synced back to buffer before the call and reloaded after.
+/// Static encode helpers for the generated encode bodies. Each takes the write cursor by value and
+/// returns it advanced, so outlined calls at -Os chain through the return register instead of a
+/// stack slot. Helpers without a _force suffix skip fields holding the proto3 default.
 class ProtoEncode {
  public:
   /// Write a multi-byte varint directly through a pos pointer.
   template<typename T>
-  static inline void encode_varint_raw_loop(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM, T value) {
+  [[nodiscard]] static inline uint8_t *encode_varint_raw_loop(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                              T value) {
     do {
       PROTO_ENCODE_CHECK_BOUNDS(pos, 1);
       *pos++ = static_cast<uint8_t>(value | 0x80);
@@ -307,48 +326,49 @@ class ProtoEncode {
     } while (value > 0x7F);
     PROTO_ENCODE_CHECK_BOUNDS(pos, 1);
     *pos++ = static_cast<uint8_t>(value);
+    return pos;
   }
-  static inline void ESPHOME_ALWAYS_INLINE encode_varint_raw(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM,
-                                                             uint32_t value) {
+  [[nodiscard]] static inline uint8_t *ESPHOME_ALWAYS_INLINE
+  encode_varint_raw(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM, uint32_t value) {
     if (value < VARINT_MAX_1_BYTE) [[likely]] {
       PROTO_ENCODE_CHECK_BOUNDS(pos, 1);
       *pos++ = static_cast<uint8_t>(value);
-      return;
+      return pos;
     }
-    encode_varint_raw_loop(pos PROTO_ENCODE_DEBUG_ARG, value);
+    return encode_varint_raw_loop(pos PROTO_ENCODE_DEBUG_ARG, value);
   }
   /// Encode a varint that is expected to be 1-2 bytes (e.g. zigzag RSSI, small lengths).
-  static inline void ESPHOME_ALWAYS_INLINE encode_varint_raw_short(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM,
-                                                                   uint32_t value) {
+  [[nodiscard]] static inline uint8_t *ESPHOME_ALWAYS_INLINE
+  encode_varint_raw_short(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM, uint32_t value) {
     if (value < VARINT_MAX_1_BYTE) [[likely]] {
       PROTO_ENCODE_CHECK_BOUNDS(pos, 1);
       *pos++ = static_cast<uint8_t>(value);
-      return;
+      return pos;
     }
     if (value < VARINT_MAX_2_BYTE) [[likely]] {
       PROTO_ENCODE_CHECK_BOUNDS(pos, 2);
       *pos++ = static_cast<uint8_t>(value | 0x80);
       *pos++ = static_cast<uint8_t>(value >> 7);
-      return;
+      return pos;
     }
-    encode_varint_raw_loop(pos PROTO_ENCODE_DEBUG_ARG, value);
+    return encode_varint_raw_loop(pos PROTO_ENCODE_DEBUG_ARG, value);
   }
-  static inline void ESPHOME_ALWAYS_INLINE encode_varint_raw_64(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM,
-                                                                uint64_t value) {
+  [[nodiscard]] static inline uint8_t *ESPHOME_ALWAYS_INLINE
+  encode_varint_raw_64(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM, uint64_t value) {
     if (value < VARINT_MAX_1_BYTE) [[likely]] {
       PROTO_ENCODE_CHECK_BOUNDS(pos, 1);
       *pos++ = static_cast<uint8_t>(value);
-      return;
+      return pos;
     }
-    encode_varint_raw_loop(pos PROTO_ENCODE_DEBUG_ARG, value);
+    return encode_varint_raw_loop(pos PROTO_ENCODE_DEBUG_ARG, value);
   }
   /// Encode a 48-bit MAC address (stored in a uint64) as varint.
   /// Real MAC addresses occupy the full 48 bits (OUI in upper 24), so the
   /// fast path -- any non-zero bit in the top 6 of 48 -- emits exactly 7 bytes
   /// with no per-byte branch. Falls back to the general loop otherwise.
   /// Caller must guarantee value fits in 48 bits (checked in debug builds).
-  static inline void ESPHOME_ALWAYS_INLINE encode_varint_raw_48bit(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM,
-                                                                   uint64_t value) {
+  [[nodiscard]] static inline uint8_t *ESPHOME_ALWAYS_INLINE
+  encode_varint_raw_48bit(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM, uint64_t value) {
 #ifdef ESPHOME_DEBUG_API
     assert(value < (1ULL << (MAC_ADDRESS_SIZE * 8)) && "encode_varint_raw_48bit: value exceeds 48 bits");
 #endif
@@ -363,38 +383,39 @@ class ProtoEncode {
       pos[4] = static_cast<uint8_t>((value >> 28) | 0x80);
       pos[5] = static_cast<uint8_t>((value >> 35) | 0x80);
       pos[6] = static_cast<uint8_t>(value >> 42);
-      pos += 7;
-      return;
+      return pos + 7;
     }
-    encode_varint_raw_64(pos PROTO_ENCODE_DEBUG_ARG, value);
+    return encode_varint_raw_64(pos PROTO_ENCODE_DEBUG_ARG, value);
   }
-  static inline void ESPHOME_ALWAYS_INLINE encode_field_raw(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM,
-                                                            uint32_t field_id, uint32_t type) {
-    encode_varint_raw(pos PROTO_ENCODE_DEBUG_ARG, (field_id << 3) | type);
+  [[nodiscard]] static inline uint8_t *ESPHOME_ALWAYS_INLINE
+  encode_field_raw(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM, uint32_t field_id, uint32_t type) {
+    return encode_varint_raw(pos PROTO_ENCODE_DEBUG_ARG, proto_tag(field_id, type));
   }
   /// Write a single precomputed tag byte. Tag must be < 128.
-  static inline void ESPHOME_ALWAYS_INLINE write_raw_byte(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM,
-                                                          uint8_t b) {
+  [[nodiscard]] static inline uint8_t *ESPHOME_ALWAYS_INLINE
+  write_raw_byte(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM, uint8_t b) {
     PROTO_ENCODE_CHECK_BOUNDS(pos, 1);
     *pos++ = b;
+    return pos;
   }
   /// Reserve one byte for later backpatch (e.g., sub-message length).
   /// Advances pos past the reserved byte without writing a value.
-  static inline void ESPHOME_ALWAYS_INLINE reserve_byte(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM) {
+  [[nodiscard]] static inline uint8_t *ESPHOME_ALWAYS_INLINE
+  reserve_byte(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM) {
     PROTO_ENCODE_CHECK_BOUNDS(pos, 1);
-    pos++;
+    return pos + 1;
   }
   /// Write raw bytes to the buffer (no tag, no length prefix).
-  static inline void ESPHOME_ALWAYS_INLINE encode_raw(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM,
-                                                      const void *data, size_t len) {
+  [[nodiscard]] static inline uint8_t *ESPHOME_ALWAYS_INLINE
+  encode_raw(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM, const void *data, size_t len) {
     PROTO_ENCODE_CHECK_BOUNDS(pos, len);
     std::memcpy(pos, data, len);
-    pos += len;
+    return pos + len;
   }
   /// Encode tag + 1-byte length + raw string data. For strings with max_data_length < 128.
   /// Tag must be a single-byte varint (< 128). Always encodes (no zero check).
-  static inline void encode_short_string_force(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM, uint8_t tag,
-                                               const StringRef &ref) {
+  [[nodiscard]] static inline uint8_t *encode_short_string_force(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                                 uint8_t tag, const StringRef &ref) {
 #ifdef ESPHOME_DEBUG_API
     assert(ref.size() < 128 && "encode_short_string_force: string exceeds max_data_length < 128");
 #endif
@@ -402,137 +423,191 @@ class ProtoEncode {
     pos[0] = tag;
     pos[1] = static_cast<uint8_t>(ref.size());
     std::memcpy(pos + 2, ref.c_str(), ref.size());
-    pos += 2 + ref.size();
+    return pos + 2 + ref.size();
   }
-  /// Write a precomputed tag byte + 32-bit value in one operation.
-  static inline void ESPHOME_ALWAYS_INLINE write_tag_and_fixed32(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM,
-                                                                 uint8_t tag, uint32_t value) {
+  /// Write a precomputed tag byte + 32-bit value. Outlined on embedded: one copy beats inline stores per field.
+  [[nodiscard]] static PROTO_OUTLINE_FOR_SIZE uint8_t *write_tag_and_fixed32(
+      uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM, uint8_t tag, uint32_t value) {
     PROTO_ENCODE_CHECK_BOUNDS(pos, 5);
     pos[0] = tag;
-#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
-    std::memcpy(pos + 1, &value, 4);
-#else
-    pos[1] = static_cast<uint8_t>(value & 0xFF);
-    pos[2] = static_cast<uint8_t>((value >> 8) & 0xFF);
-    pos[3] = static_cast<uint8_t>((value >> 16) & 0xFF);
-    pos[4] = static_cast<uint8_t>((value >> 24) & 0xFF);
-#endif
-    pos += 5;
+    write_fixed32_le(pos + 1, value);
+    return pos + 5;
   }
-  static inline void encode_string(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM, uint32_t field_id,
-                                   const char *string, size_t len, bool force = false) {
-    if (len == 0 && !force)
-      return;
-    encode_field_raw(pos PROTO_ENCODE_DEBUG_ARG, field_id, 2);  // type 2: Length-delimited string
+  [[nodiscard]] static inline uint8_t *encode_string_force(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                           uint32_t field_id, const char *string, size_t len) {
+    pos = encode_field_raw(pos PROTO_ENCODE_DEBUG_ARG, field_id, 2);  // type 2: Length-delimited string
     // NOLINTNEXTLINE(readability-inconsistent-ifelse-braces) -- false positive on [[likely]] attribute
     if (len < VARINT_MAX_1_BYTE) [[likely]] {
       PROTO_ENCODE_CHECK_BOUNDS(pos, 1 + len);
       *pos++ = static_cast<uint8_t>(len);
     } else {
-      encode_varint_raw_loop(pos PROTO_ENCODE_DEBUG_ARG, len);
+      pos = encode_varint_raw_loop(pos PROTO_ENCODE_DEBUG_ARG, len);
       PROTO_ENCODE_CHECK_BOUNDS(pos, len);
     }
     std::memcpy(pos, string, len);
-    pos += len;
+    return pos + len;
   }
-  static inline void encode_string(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM, uint32_t field_id,
-                                   const std::string &value, bool force = false) {
-    encode_string(pos PROTO_ENCODE_DEBUG_ARG, field_id, value.data(), value.size(), force);
+  [[nodiscard]] static inline uint8_t *encode_string(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                     uint32_t field_id, const char *string, size_t len) {
+    if (len == 0)
+      return pos;
+    return encode_string_force(pos PROTO_ENCODE_DEBUG_ARG, field_id, string, len);
   }
-  static inline void encode_string(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM, uint32_t field_id,
-                                   const StringRef &ref, bool force = false) {
-    encode_string(pos PROTO_ENCODE_DEBUG_ARG, field_id, ref.c_str(), ref.size(), force);
+  [[nodiscard]] static inline uint8_t *encode_string_force(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                           uint32_t field_id, const std::string &value) {
+    return encode_string_force(pos PROTO_ENCODE_DEBUG_ARG, field_id, value.data(), value.size());
   }
-  static inline void encode_bytes(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM, uint32_t field_id,
-                                  const uint8_t *data, size_t len, bool force = false) {
-    encode_string(pos PROTO_ENCODE_DEBUG_ARG, field_id, reinterpret_cast<const char *>(data), len, force);
+  [[nodiscard]] static inline uint8_t *encode_string(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                     uint32_t field_id, const StringRef &ref) {
+    return encode_string(pos PROTO_ENCODE_DEBUG_ARG, field_id, ref.c_str(), ref.size());
   }
-  static inline void encode_uint32(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM, uint32_t field_id,
-                                   uint32_t value, bool force = false) {
-    if (value == 0 && !force)
-      return;
-    encode_field_raw(pos PROTO_ENCODE_DEBUG_ARG, field_id, 0);
-    encode_varint_raw(pos PROTO_ENCODE_DEBUG_ARG, value);
+  [[nodiscard]] static inline uint8_t *encode_string_force(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                           uint32_t field_id, const StringRef &ref) {
+    return encode_string_force(pos PROTO_ENCODE_DEBUG_ARG, field_id, ref.c_str(), ref.size());
   }
-  static inline void encode_uint64(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM, uint32_t field_id,
-                                   uint64_t value, bool force = false) {
-    if (value == 0 && !force)
-      return;
-    encode_field_raw(pos PROTO_ENCODE_DEBUG_ARG, field_id, 0);
-    encode_varint_raw_64(pos PROTO_ENCODE_DEBUG_ARG, value);
+  [[nodiscard]] static inline uint8_t *encode_bytes(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                    uint32_t field_id, const uint8_t *data, size_t len) {
+    return encode_string(pos PROTO_ENCODE_DEBUG_ARG, field_id, reinterpret_cast<const char *>(data), len);
   }
-  static inline void encode_bool(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM, uint32_t field_id, bool value,
-                                 bool force = false) {
-    if (!value && !force)
-      return;
-    encode_field_raw(pos PROTO_ENCODE_DEBUG_ARG, field_id, 0);
+  [[nodiscard]] static inline uint8_t *encode_bytes_force(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                          uint32_t field_id, const uint8_t *data, size_t len) {
+    return encode_string_force(pos PROTO_ENCODE_DEBUG_ARG, field_id, reinterpret_cast<const char *>(data), len);
+  }
+  [[nodiscard]] static inline uint8_t *encode_uint32_force(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                           uint32_t field_id, uint32_t value) {
+    pos = encode_field_raw(pos PROTO_ENCODE_DEBUG_ARG, field_id, 0);
+    return encode_varint_raw(pos PROTO_ENCODE_DEBUG_ARG, value);
+  }
+  [[nodiscard]] static inline uint8_t *encode_uint32(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                     uint32_t field_id, uint32_t value) {
+    if (value == 0)
+      return pos;
+    return encode_uint32_force(pos PROTO_ENCODE_DEBUG_ARG, field_id, value);
+  }
+  [[nodiscard]] static inline uint8_t *encode_uint64_force(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                           uint32_t field_id, uint64_t value) {
+    pos = encode_field_raw(pos PROTO_ENCODE_DEBUG_ARG, field_id, 0);
+    return encode_varint_raw_64(pos PROTO_ENCODE_DEBUG_ARG, value);
+  }
+  [[nodiscard]] static inline uint8_t *encode_uint64(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                     uint32_t field_id, uint64_t value) {
+    if (value == 0)
+      return pos;
+    return encode_uint64_force(pos PROTO_ENCODE_DEBUG_ARG, field_id, value);
+  }
+  [[nodiscard]] static inline uint8_t *encode_bool_force(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                         uint32_t field_id, bool value) {
+    pos = encode_field_raw(pos PROTO_ENCODE_DEBUG_ARG, field_id, 0);
     PROTO_ENCODE_CHECK_BOUNDS(pos, 1);
     *pos++ = value ? 0x01 : 0x00;
+    return pos;
   }
-  static inline void encode_fixed32(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM, uint32_t field_id,
-                                    uint32_t value, bool force = false) {
-    if (value == 0 && !force)
-      return;
-    encode_field_raw(pos PROTO_ENCODE_DEBUG_ARG, field_id, 5);
+  [[nodiscard]] static inline uint8_t *encode_bool(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                   uint32_t field_id, bool value) {
+    if (!value)
+      return pos;
+    return encode_bool_force(pos PROTO_ENCODE_DEBUG_ARG, field_id, value);
+  }
+  /// Tag + fixed32 for multi-byte tags; single-byte tags use write_tag_and_fixed32.
+  [[nodiscard]] static PROTO_OUTLINE_FOR_SIZE uint8_t *encode_fixed32_force(
+      uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM, uint32_t field_id, uint32_t value) {
+    pos = encode_field_raw(pos PROTO_ENCODE_DEBUG_ARG, field_id, 5);
     PROTO_ENCODE_CHECK_BOUNDS(pos, 4);
-#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
-    std::memcpy(pos, &value, 4);
-    pos += 4;
-#else
-    *pos++ = (value >> 0) & 0xFF;
-    *pos++ = (value >> 8) & 0xFF;
-    *pos++ = (value >> 16) & 0xFF;
-    *pos++ = (value >> 24) & 0xFF;
-#endif
+    write_fixed32_le(pos, value);
+    return pos + 4;
+  }
+  [[nodiscard]] static inline uint8_t *encode_fixed32(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                      uint32_t field_id, uint32_t value) {
+    if (value == 0)
+      return pos;
+    return encode_fixed32_force(pos PROTO_ENCODE_DEBUG_ARG, field_id, value);
   }
   // NOTE: Wire type 1 (64-bit fixed: double, fixed64, sfixed64) is intentionally
   // not supported to reduce overhead on embedded systems. All ESPHome devices are
   // 32-bit microcontrollers where 64-bit operations are expensive. If 64-bit support
   // is needed in the future, the necessary encoding/decoding functions must be added.
-  static inline void encode_float(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM, uint32_t field_id, float value,
-                                  bool force = false) {
-    uint32_t raw = float_to_raw(value);
-    if (raw == 0 && !force)
-      return;
-    encode_fixed32(pos PROTO_ENCODE_DEBUG_ARG, field_id, raw);
+  [[nodiscard]] static inline uint8_t *encode_float(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                    uint32_t field_id, float value) {
+    return encode_fixed32(pos PROTO_ENCODE_DEBUG_ARG, field_id, float_to_raw(value));
   }
-  static inline void encode_int32(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM, uint32_t field_id, int32_t value,
-                                  bool force = false) {
+  [[nodiscard]] static inline uint8_t *encode_float_force(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                          uint32_t field_id, float value) {
+    return encode_fixed32_force(pos PROTO_ENCODE_DEBUG_ARG, field_id, float_to_raw(value));
+  }
+  [[nodiscard]] static inline uint8_t *encode_int32_force(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                          uint32_t field_id, int32_t value) {
     if (value < 0) {
       // negative int32 is always 10 byte long
-      encode_uint64(pos PROTO_ENCODE_DEBUG_ARG, field_id, static_cast<uint64_t>(value), force);
-      return;
+      return encode_uint64_force(pos PROTO_ENCODE_DEBUG_ARG, field_id, static_cast<uint64_t>(value));
     }
-    encode_uint32(pos PROTO_ENCODE_DEBUG_ARG, field_id, static_cast<uint32_t>(value), force);
+    return encode_uint32_force(pos PROTO_ENCODE_DEBUG_ARG, field_id, static_cast<uint32_t>(value));
   }
-  static inline void encode_int64(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM, uint32_t field_id, int64_t value,
-                                  bool force = false) {
-    encode_uint64(pos PROTO_ENCODE_DEBUG_ARG, field_id, static_cast<uint64_t>(value), force);
+  [[nodiscard]] static inline uint8_t *encode_int32(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                    uint32_t field_id, int32_t value) {
+    if (value == 0)
+      return pos;
+    return encode_int32_force(pos PROTO_ENCODE_DEBUG_ARG, field_id, value);
   }
-  static inline void encode_sint32(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM, uint32_t field_id,
-                                   int32_t value, bool force = false) {
-    encode_uint32(pos PROTO_ENCODE_DEBUG_ARG, field_id, encode_zigzag32(value), force);
+  [[nodiscard]] static inline uint8_t *encode_int64(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                    uint32_t field_id, int64_t value) {
+    return encode_uint64(pos PROTO_ENCODE_DEBUG_ARG, field_id, static_cast<uint64_t>(value));
   }
-  static inline void encode_sint64(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM, uint32_t field_id,
-                                   int64_t value, bool force = false) {
-    encode_uint64(pos PROTO_ENCODE_DEBUG_ARG, field_id, encode_zigzag64(value), force);
+  [[nodiscard]] static inline uint8_t *encode_int64_force(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                          uint32_t field_id, int64_t value) {
+    return encode_uint64_force(pos PROTO_ENCODE_DEBUG_ARG, field_id, static_cast<uint64_t>(value));
   }
-  /// Sub-message encoding: sync pos to buffer, delegate, get pos from return value.
+  [[nodiscard]] static inline uint8_t *encode_sint32(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                     uint32_t field_id, int32_t value) {
+    return encode_uint32(pos PROTO_ENCODE_DEBUG_ARG, field_id, encode_zigzag32(value));
+  }
+  [[nodiscard]] static inline uint8_t *encode_sint32_force(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                           uint32_t field_id, int32_t value) {
+    return encode_uint32_force(pos PROTO_ENCODE_DEBUG_ARG, field_id, encode_zigzag32(value));
+  }
+  [[nodiscard]] static inline uint8_t *encode_sint64(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                     uint32_t field_id, int64_t value) {
+    return encode_uint64(pos PROTO_ENCODE_DEBUG_ARG, field_id, encode_zigzag64(value));
+  }
+  [[nodiscard]] static inline uint8_t *encode_sint64_force(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                           uint32_t field_id, int64_t value) {
+    return encode_uint64_force(pos PROTO_ENCODE_DEBUG_ARG, field_id, encode_zigzag64(value));
+  }
+  /// Sub-message encoding: sync pos to buffer, delegate, read the cursor back.
   template<typename T>
-  static inline void encode_sub_message(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM, ProtoWriteBuffer &buffer,
-                                        uint32_t field_id, const T &value) {
+  [[nodiscard]] static inline uint8_t *encode_sub_message(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                          ProtoWriteBuffer &buffer, uint32_t field_id, const T &value) {
     buffer.set_pos(pos);
     buffer.encode_sub_message(field_id, value);
-    pos = buffer.get_pos();
+    return buffer.get_pos();
   }
   template<typename T>
-  static inline void encode_optional_sub_message(uint8_t *__restrict__ &pos PROTO_ENCODE_DEBUG_PARAM,
-                                                 ProtoWriteBuffer &buffer, uint32_t field_id, const T &value) {
+  [[nodiscard]] static inline uint8_t *encode_optional_sub_message(uint8_t *__restrict__ pos PROTO_ENCODE_DEBUG_PARAM,
+                                                                   ProtoWriteBuffer &buffer, uint32_t field_id,
+                                                                   const T &value) {
     buffer.set_pos(pos);
     buffer.encode_optional_sub_message(field_id, value);
-    pos = buffer.get_pos();
+    return buffer.get_pos();
+  }
+
+ private:
+  /// Unaligned little endian store of four bytes: byte stores where the outlined helper lives (ESP-IDF, ARM
+  /// without unaligned access), otherwise a memcpy the compiler folds into one store. Callers bounds check
+  /// and advance the cursor themselves.
+  static inline void ESPHOME_ALWAYS_INLINE write_fixed32_le(uint8_t *__restrict__ pos, uint32_t value) {
+    if constexpr (PROTO_FIXED32_BYTE_STORES) {
+      // Spelled out so the outlined helper does not itself become a memcpy call
+      pos[0] = static_cast<uint8_t>(value);
+      pos[1] = static_cast<uint8_t>(value >> 8);
+      pos[2] = static_cast<uint8_t>(value >> 16);
+      pos[3] = static_cast<uint8_t>(value >> 24);
+    } else {
+      const uint32_t le = convert_little_endian(value);
+      __builtin_memcpy(pos, &le, 4);
+    }
   }
 };
+#undef PROTO_OUTLINE_FOR_SIZE
+#undef PROTO_FIXED32_BYTE_STORES
 
 #ifdef HAS_PROTO_MESSAGE_DUMP
 /**
@@ -624,11 +699,12 @@ class DumpBuffer {
 
 class ProtoMessage {
  public:
-  // Non-virtual defaults for messages with no fields.
-  // Concrete message classes hide these with their own implementations.
-  // All call sites use templates to preserve the concrete type, so virtual
-  // dispatch is not needed. This eliminates per-message vtable entries for
-  // encode/calculate_size, saving ~1.3 KB of flash across all message types.
+  // Non-virtual defaults for messages with no fields; generated classes hide all four. The
+  // static encode_msg/calc_size_msg take const void * so &T::encode_msg needs no thunk.
+  static uint8_t *encode_msg(const void *self, ProtoWriteBuffer &buffer PROTO_ENCODE_DEBUG_PARAM) {
+    return buffer.get_pos();
+  }
+  static uint32_t calc_size_msg(const void *self) { return 0; }
   uint8_t *encode(ProtoWriteBuffer &buffer PROTO_ENCODE_DEBUG_PARAM) const { return buffer.get_pos(); }
   uint32_t calculate_size() const { return 0; }
 #ifdef HAS_PROTO_MESSAGE_DUMP
@@ -648,7 +724,13 @@ class ProtoMessage {
 // Base class for messages that support decoding
 class ProtoDecodableMessage : public ProtoMessage {
  public:
-  void decode(const uint8_t *buffer, size_t length);
+  /// Stores one decoded field into \p msg; generated per message type. \p scalar is the varint or
+  /// fixed32 value, or the length of the length-delimited payload at \p data. An unknown field or
+  /// wrong wire type matches no case and is skipped.
+  using DecodeFieldFn = void (*)(void *msg, uint32_t tag, const uint8_t *data, proto_varint_value_t scalar);
+  /// Walk \p buffer and hand every field to \p field. The generated decode() passes the message's
+  /// own decode_field, so decodable messages carry no vtable.
+  static void decode_fields(void *msg, const uint8_t *buffer, size_t length, DecodeFieldFn field);
 
   /**
    * Count occurrences of a repeated field in a protobuf buffer.
@@ -660,14 +742,15 @@ class ProtoDecodableMessage : public ProtoMessage {
    * @return Number of times the field appears in the buffer
    */
   static uint32_t count_repeated_field(const uint8_t *buffer, size_t length, uint32_t target_field_id);
-
- protected:
-  ~ProtoDecodableMessage() = default;
-  virtual bool decode_varint(uint32_t field_id, proto_varint_value_t value) { return false; }
-  virtual bool decode_length(uint32_t field_id, ProtoLengthDelimited value) { return false; }
-  virtual bool decode_32bit(uint32_t field_id, Proto32Bit value) { return false; }
-  // NOTE: decode_64bit removed - wire type 1 not supported
+  // The destructor stays accessible on purpose: the generated messages are aggregates that brace
+  // initialise sub message members, which copies a base temporary. That trades away the compile time
+  // guard against deleting through this type; messages are stack locals and never owned through a base
+  // pointer. ProtoMessage keeps its guard for the dump builds.
 };
+#ifndef HAS_PROTO_MESSAGE_DUMP
+// decode() passes decode_field explicitly, so nothing here may add a vtable
+static_assert(!std::is_polymorphic_v<ProtoDecodableMessage>, "decodable messages carry no vtable");
+#endif
 
 class ProtoSize {
  public:
@@ -792,7 +875,7 @@ class ProtoSize {
    * @return The number of bytes needed to encode the field ID and wire type
    */
   static constexpr uint32_t field(uint32_t field_id, uint32_t type) {
-    uint32_t tag = (field_id << 3) | (type & WIRE_TYPE_MASK);
+    uint32_t tag = proto_tag(field_id, type & WIRE_TYPE_MASK);
     return varint(tag);
   }
 
@@ -876,24 +959,14 @@ class ProtoSize {
 
 // Implementation of methods that depend on ProtoSize being fully defined
 
-// Encode thunk — converts void* back to concrete type for direct encode() call
-template<typename T> uint8_t *proto_encode_msg(const void *msg, ProtoWriteBuffer &buf PROTO_ENCODE_DEBUG_PARAM) {
-  return static_cast<const T *>(msg)->encode(buf PROTO_ENCODE_DEBUG_ARG);
-}
-
 // Thin template wrapper; delegates to non-template core in proto.cpp.
 template<typename T> inline void ProtoWriteBuffer::encode_sub_message(uint32_t field_id, const T &value) {
-  this->encode_sub_message(field_id, &value, &proto_encode_msg<T>);
+  this->encode_sub_message(field_id, &value, &T::encode_msg);
 }
 
 // Thin template wrapper; delegates to non-template core.
 template<typename T> inline void ProtoWriteBuffer::encode_optional_sub_message(uint32_t field_id, const T &value) {
-  this->encode_optional_sub_message(field_id, value.calculate_size(), &value, &proto_encode_msg<T>);
-}
-
-// Template decode_to_message - preserves concrete type so decode() resolves statically
-template<typename T> void ProtoLengthDelimited::decode_to_message(T &msg) const {
-  msg.decode(this->value_, this->length_);
+  this->encode_optional_sub_message(field_id, T::calc_size_msg(&value), &value, &T::encode_msg);
 }
 
 template<typename T> const char *proto_enum_to_string(T value);

esphome/components/api/subscribe_state.h

@@ -4,7 +4,6 @@
 #ifdef USE_API
 #include "esphome/core/component.h"
 #include "esphome/core/component_iterator.h"
-#include "esphome/core/controller.h"
 namespace esphome::api {
 
 class APIConnection;

esphome/components/as7341/sensor.py

@@ -1,5 +1,6 @@
 import esphome.codegen as cg
 from esphome.components import i2c, sensor
+from esphome.components.const import UNIT_COUNTS
 import esphome.config_validation as cv
 from esphome.const import (
     CONF_CLEAR,
@@ -33,8 +34,6 @@ CONF_F7 = "f7"
 CONF_F8 = "f8"
 CONF_NIR = "nir"
 
-UNIT_COUNTS = "#"
-
 AS7341_GAIN = as7341_ns.enum("AS7341Gain")
 GAIN_OPTIONS = {
     "X0.5": AS7341_GAIN.AS7341_GAIN_0_5X,

esphome/components/at581x/__init__.py

@@ -4,8 +4,6 @@ import esphome.codegen as cg
 from esphome.components import i2c
 import esphome.config_validation as cv
 from esphome.const import CONF_FREQUENCY, CONF_ID
-from esphome.core import ID
-from esphome.cpp_generator import MockObj, TemplateArgsType
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@X-Ryl669"]
@@ -80,30 +78,21 @@ async def to_code(config: ConfigType) -> None:
 
 
 # Actions
-AT581XResetAction = at581x_ns.class_("AT581XResetAction", automation.Action)
-AT581XSettingsAction = at581x_ns.class_("AT581XSettingsAction", automation.Action)
 
 
-@automation.register_action(
+automation.register_apply_action(
     "at581x.reset",
-    AT581XResetAction,
-    maybe_simple_id(
-        {
-            cv.Required(CONF_ID): cv.use_id(AT581XComponent),
-        }
-    ),
-    synchronous=True,
+    maybe_simple_id({cv.Required(CONF_ID): cv.use_id(AT581XComponent)}),
+    automation.ApplyCall("reset_hardware_frontend()"),
 )
-async def at581x_reset_to_code(
-    config: ConfigType,
-    action_id: ID,
-    template_arg: cg.TemplateArguments,
-    args: TemplateArgsType,
-) -> MockObj:
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
 
-    return var
+
+def _megahertz(value: float) -> int:
+    return int(value / 1000000)
+
+
+def _microamps(value: float) -> int:
+    return int(value * 1000000)
 
 
 RADAR_SETTINGS_SCHEMA = cv.Schema(
@@ -111,7 +100,7 @@ RADAR_SETTINGS_SCHEMA = cv.Schema(
         cv.Required(CONF_ID): cv.use_id(AT581XComponent),
         cv.Optional(CONF_HW_FRONTEND_RESET): cv.templatable(cv.boolean),
         cv.Optional(CONF_FREQUENCY, default="5800MHz"): cv.templatable(
-            cv.All(cv.frequency, cv.one_of(*RADAR_ALLOWED_FREQ))
+            cv.All(cv.frequency, cv.one_of(*RADAR_ALLOWED_FREQ), _megahertz)
         ),
         cv.Optional(CONF_SENSING_DISTANCE, default=823): cv.templatable(
             cv.int_range(min=0, max=1023)
@@ -123,7 +112,7 @@ RADAR_SETTINGS_SCHEMA = cv.Schema(
             )
         ),
         cv.Optional(CONF_POWER_CONSUMPTION, default="70uA"): cv.templatable(
-            cv.All(cv.current, cv.one_of(*RADAR_ALLOWED_CUR_CONSUMPTION))
+            cv.All(cv.current, cv.one_of(*RADAR_ALLOWED_CUR_CONSUMPTION), _microamps)
         ),
         cv.Optional(CONF_PROTECT_TIME, default="1000ms"): cv.templatable(
             cv.All(
@@ -165,60 +154,22 @@ RADAR_SETTINGS_SCHEMA = cv.Schema(
 )
 
 
-@automation.register_action(
+# i2c_write_config() must follow the setters: it flushes the staged values.
+automation.register_apply_action(
     "at581x.settings",
-    AT581XSettingsAction,
     RADAR_SETTINGS_SCHEMA,
-    synchronous=True,
+    automation.ApplyField(CONF_FREQUENCY, "set_frequency", cg.int_),
+    automation.ApplyField(CONF_SENSING_DISTANCE, "set_sensing_distance", cg.int_),
+    automation.ApplyField(
+        CONF_POWERON_SELFCHECK_TIME, "set_poweron_selfcheck_time", cg.int_
+    ),
+    automation.ApplyField(CONF_POWER_CONSUMPTION, "set_power_consumption", cg.int_),
+    automation.ApplyField(CONF_PROTECT_TIME, "set_protect_time", cg.int_),
+    automation.ApplyField(CONF_TRIGGER_BASE, "set_trigger_base", cg.int_),
+    automation.ApplyField(CONF_TRIGGER_KEEP, "set_trigger_keep", cg.int_),
+    automation.ApplyField(CONF_STAGE_GAIN, "set_stage_gain", cg.int_),
+    automation.ApplyCall("i2c_write_config()"),
+    automation.ApplyField(
+        CONF_HW_FRONTEND_RESET, "reset_hardware_frontend_if", cg.bool_
+    ),
 )
-async def at581x_settings_to_code(
-    config: ConfigType,
-    action_id: ID,
-    template_arg: cg.TemplateArguments,
-    args: TemplateArgsType,
-) -> MockObj:
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
-
-    # Radar configuration
-    if frontend_reset := config.get(CONF_HW_FRONTEND_RESET):
-        template_ = await cg.templatable(frontend_reset, args, cg.int8)
-        cg.add(var.set_hw_frontend_reset(template_))
-
-    if freq := config.get(CONF_FREQUENCY):
-        if not cg.is_template(freq):
-            freq = int(freq / 1000000)
-        template_ = await cg.templatable(freq, args, cg.int_)
-        cg.add(var.set_frequency(template_))
-
-    if (sens_dist := config.get(CONF_SENSING_DISTANCE)) is not None:
-        template_ = await cg.templatable(sens_dist, args, cg.int_)
-        cg.add(var.set_sensing_distance(template_))
-
-    if selfcheck := config.get(CONF_POWERON_SELFCHECK_TIME):
-        template_ = await cg.templatable(selfcheck, args, cg.int_)
-        cg.add(var.set_poweron_selfcheck_time(template_))
-
-    if protect := config.get(CONF_PROTECT_TIME):
-        template_ = await cg.templatable(protect, args, cg.int_)
-        cg.add(var.set_protect_time(template_))
-
-    if trig_base := config.get(CONF_TRIGGER_BASE):
-        template_ = await cg.templatable(trig_base, args, cg.int_)
-        cg.add(var.set_trigger_base(template_))
-
-    if trig_keep := config.get(CONF_TRIGGER_KEEP):
-        template_ = await cg.templatable(trig_keep, args, cg.int_)
-        cg.add(var.set_trigger_keep(template_))
-
-    if (stage_gain := config.get(CONF_STAGE_GAIN)) is not None:
-        template_ = await cg.templatable(stage_gain, args, cg.int_)
-        cg.add(var.set_stage_gain(template_))
-
-    if power := config.get(CONF_POWER_CONSUMPTION):
-        if not cg.is_template(power):
-            power = int(power * 1000000)
-        template_ = await cg.templatable(power, args, cg.int_)
-        cg.add(var.set_power_consumption(template_))
-
-    return var

esphome/components/at581x/at581x.h

@@ -38,6 +38,10 @@ class AT581XComponent final : public Component, public i2c::I2CDevice {
 
   bool i2c_write_config();
   bool reset_hardware_frontend();
+  void reset_hardware_frontend_if(bool reset) {
+    if (reset)
+      this->reset_hardware_frontend();
+  }
   bool i2c_write_reg(uint8_t addr, uint8_t data);
   bool i2c_write_reg(uint8_t addr, uint32_t data);
   bool i2c_write_reg(uint8_t addr, uint16_t data);

esphome/components/at581x/automation.h

@@ -1,69 +0,0 @@
-#pragma once
-
-#include "esphome/core/automation.h"
-#include "esphome/core/helpers.h"
-
-#include "at581x.h"
-
-namespace esphome::at581x {
-
-template<typename... Ts> class AT581XResetAction final : public Action<Ts...>, public Parented<AT581XComponent> {
- public:
-  void play(const Ts &...x) { this->parent_->reset_hardware_frontend(); }
-};
-
-template<typename... Ts> class AT581XSettingsAction final : public Action<Ts...>, public Parented<AT581XComponent> {
- public:
-  TEMPLATABLE_VALUE(int8_t, hw_frontend_reset)
-  TEMPLATABLE_VALUE(int, frequency)
-  TEMPLATABLE_VALUE(int, sensing_distance)
-  TEMPLATABLE_VALUE(int, poweron_selfcheck_time)
-  TEMPLATABLE_VALUE(int, power_consumption)
-  TEMPLATABLE_VALUE(int, protect_time)
-  TEMPLATABLE_VALUE(int, trigger_base)
-  TEMPLATABLE_VALUE(int, trigger_keep)
-  TEMPLATABLE_VALUE(int, stage_gain)
-
-  void play(const Ts &...x) {
-    if (this->frequency_.has_value()) {
-      int v = this->frequency_.value(x...);
-      this->parent_->set_frequency(v);
-    }
-    if (this->sensing_distance_.has_value()) {
-      int v = this->sensing_distance_.value(x...);
-      this->parent_->set_sensing_distance(v);
-    }
-    if (this->poweron_selfcheck_time_.has_value()) {
-      int v = this->poweron_selfcheck_time_.value(x...);
-      this->parent_->set_poweron_selfcheck_time(v);
-    }
-    if (this->power_consumption_.has_value()) {
-      int v = this->power_consumption_.value(x...);
-      this->parent_->set_power_consumption(v);
-    }
-    if (this->protect_time_.has_value()) {
-      int v = this->protect_time_.value(x...);
-      this->parent_->set_protect_time(v);
-    }
-    if (this->trigger_base_.has_value()) {
-      int v = this->trigger_base_.value(x...);
-      this->parent_->set_trigger_base(v);
-    }
-    if (this->trigger_keep_.has_value()) {
-      int v = this->trigger_keep_.value(x...);
-      this->parent_->set_trigger_keep(v);
-    }
-    if (this->stage_gain_.has_value()) {
-      int v = this->stage_gain_.value(x...);
-      this->parent_->set_stage_gain(v);
-    }
-
-    // This actually perform all the modification on the system
-    this->parent_->i2c_write_config();
-
-    if (this->hw_frontend_reset_.has_value() && this->hw_frontend_reset_.value(x...) == true) {
-      this->parent_->reset_hardware_frontend();
-    }
-  }
-};
-}  // namespace esphome::at581x

esphome/components/audio_dac/__init__.py

@@ -2,9 +2,8 @@ from esphome import automation
 from esphome.automation import maybe_simple_id
 import esphome.codegen as cg
 import esphome.config_validation as cv
-from esphome.const import CONF_ID, CONF_VOLUME
-from esphome.core import ID, CoroPriority, coroutine_with_priority
-from esphome.cpp_generator import MockObj, TemplateArgsType
+from esphome.const import CONF_VOLUME
+from esphome.core import CoroPriority, coroutine_with_priority
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@kbx81"]
@@ -13,10 +12,6 @@ IS_PLATFORM_COMPONENT = True
 audio_dac_ns = cg.esphome_ns.namespace("audio_dac")
 AudioDac = audio_dac_ns.class_("AudioDac")
 
-MuteOffAction = audio_dac_ns.class_("MuteOffAction", automation.Action)
-MuteOnAction = audio_dac_ns.class_("MuteOnAction", automation.Action)
-SetVolumeAction = audio_dac_ns.class_("SetVolumeAction", automation.Action)
-
 
 MUTE_ACTION_SCHEMA = maybe_simple_id(
     {
@@ -33,41 +28,19 @@ SET_VOLUME_ACTION_SCHEMA = cv.maybe_simple_value(
 )
 
 
-@automation.register_action(
-    "audio_dac.mute_off", MuteOffAction, MUTE_ACTION_SCHEMA, synchronous=True
-)
-@automation.register_action(
-    "audio_dac.mute_on", MuteOnAction, MUTE_ACTION_SCHEMA, synchronous=True
-)
-async def audio_dac_mute_action_to_code(
-    config: ConfigType,
-    action_id: ID,
-    template_arg: cg.TemplateArguments,
-    args: TemplateArgsType,
-) -> MockObj:
-    paren = await cg.get_variable(config[CONF_ID])
-    return cg.new_Pvariable(action_id, template_arg, paren)
+for _name, _call in (
+    ("audio_dac.mute_off", "set_mute_off()"),
+    ("audio_dac.mute_on", "set_mute_on()"),
+):
+    automation.register_apply_action(
+        _name, MUTE_ACTION_SCHEMA, automation.ApplyCall(_call)
+    )
 
-
-@automation.register_action(
+automation.register_apply_action(
     "audio_dac.set_volume",
-    SetVolumeAction,
     SET_VOLUME_ACTION_SCHEMA,
-    synchronous=True,
+    automation.ApplyField(CONF_VOLUME, "set_volume", cg.float_),
 )
-async def audio_dac_set_volume_to_code(
-    config: ConfigType,
-    action_id: ID,
-    template_arg: cg.TemplateArguments,
-    args: TemplateArgsType,
-) -> MockObj:
-    paren = await cg.get_variable(config[CONF_ID])
-    var = cg.new_Pvariable(action_id, template_arg, paren)
-
-    template_ = await cg.templatable(config.get(CONF_VOLUME), args, cg.float_)
-    cg.add(var.set_volume(template_))
-
-    return var
 
 
 @coroutine_with_priority(CoroPriority.CORE)

esphome/components/audio_dac/automation.h

@@ -1,41 +0,0 @@
-#pragma once
-
-#include "esphome/core/automation.h"
-#include "esphome/core/component.h"
-#include "audio_dac.h"
-
-namespace esphome::audio_dac {
-
-template<typename... Ts> class MuteOffAction final : public Action<Ts...> {
- public:
-  explicit MuteOffAction(AudioDac *audio_dac) : audio_dac_(audio_dac) {}
-
-  void play(const Ts &...x) override { this->audio_dac_->set_mute_off(); }
-
- protected:
-  AudioDac *audio_dac_;
-};
-
-template<typename... Ts> class MuteOnAction final : public Action<Ts...> {
- public:
-  explicit MuteOnAction(AudioDac *audio_dac) : audio_dac_(audio_dac) {}
-
-  void play(const Ts &...x) override { this->audio_dac_->set_mute_on(); }
-
- protected:
-  AudioDac *audio_dac_;
-};
-
-template<typename... Ts> class SetVolumeAction final : public Action<Ts...> {
- public:
-  explicit SetVolumeAction(AudioDac *audio_dac) : audio_dac_(audio_dac) {}
-
-  TEMPLATABLE_VALUE(float, volume)
-
-  void play(const Ts &...x) override { this->audio_dac_->set_volume(this->volume_.value(x...)); }
-
- protected:
-  AudioDac *audio_dac_;
-};
-
-}  // namespace esphome::audio_dac

esphome/components/binary_sensor/__init__.py

@@ -1,7 +1,7 @@
 from logging import getLogger
 
 from esphome import automation, core
-from esphome.automation import Condition, maybe_simple_id
+from esphome.automation import maybe_simple_id
 import esphome.codegen as cg
 from esphome.components import mqtt, web_server, zigbee
 from esphome.components.const import CONF_ON_STATE_CHANGE
@@ -134,16 +134,10 @@ MultiClickTriggerBase = binary_sensor_ns.class_(
 MultiClickTrigger = binary_sensor_ns.class_("MultiClickTrigger", MultiClickTriggerBase)
 MultiClickTriggerEvent = binary_sensor_ns.struct("MultiClickTriggerEvent")
 
-BinarySensorPublishAction = binary_sensor_ns.class_(
-    "BinarySensorPublishAction", automation.Action
-)
 BinarySensorInvalidateAction = binary_sensor_ns.class_(
     "BinarySensorInvalidateAction", automation.Action
 )
 
-# Condition
-BinarySensorCondition = binary_sensor_ns.class_("BinarySensorCondition", Condition)
-
 # Filters
 Filter = binary_sensor_ns.class_("Filter")
 TimeoutFilter = binary_sensor_ns.class_("TimeoutFilter", Filter)
@@ -648,20 +642,12 @@ BINARY_SENSOR_CONDITION_SCHEMA = maybe_simple_id(
 )
 
 
-@automation.register_condition(
-    "binary_sensor.is_on", BinarySensorCondition, BINARY_SENSOR_CONDITION_SCHEMA
+automation.register_apply_condition(
+    "binary_sensor.is_on", BINARY_SENSOR_CONDITION_SCHEMA, "state"
 )
-async def binary_sensor_is_on_to_code(config, condition_id, template_arg, args):
-    paren = await cg.get_variable(config[CONF_ID])
-    return cg.new_Pvariable(condition_id, template_arg, paren, True)
-
-
-@automation.register_condition(
-    "binary_sensor.is_off", BinarySensorCondition, BINARY_SENSOR_CONDITION_SCHEMA
+automation.register_apply_condition(
+    "binary_sensor.is_off", BINARY_SENSOR_CONDITION_SCHEMA, "state == false"
 )
-async def binary_sensor_is_off_to_code(config, condition_id, template_arg, args):
-    paren = await cg.get_variable(config[CONF_ID])
-    return cg.new_Pvariable(condition_id, template_arg, paren, False)
 
 
 @coroutine_with_priority(CoroPriority.CORE)

esphome/components/binary_sensor/automation.h

@@ -18,26 +18,6 @@ struct MultiClickTriggerEvent {
   uint32_t max_length;
 };
 
-class PressTrigger final : public Trigger<> {
- public:
-  explicit PressTrigger(BinarySensor *parent) {
-    parent->add_on_state_callback([this](bool state) {
-      if (state)
-        this->trigger();
-    });
-  }
-};
-
-class ReleaseTrigger final : public Trigger<> {
- public:
-  explicit ReleaseTrigger(BinarySensor *parent) {
-    parent->add_on_state_callback([this](bool state) {
-      if (!state)
-        this->trigger();
-    });
-  }
-};
-
 bool match_interval(uint32_t min_length, uint32_t max_length, uint32_t length);
 
 class ClickTrigger final : public Trigger<> {
@@ -140,45 +120,6 @@ template<size_t N> class MultiClickTrigger final : public MultiClickTriggerBase
   std::array<MultiClickTriggerEvent, N> timing_storage_{};
 };
 
-class StateTrigger final : public Trigger<bool> {
- public:
-  explicit StateTrigger(BinarySensor *parent) {
-    parent->add_on_state_callback([this](bool state) { this->trigger(state); });
-  }
-};
-
-class StateChangeTrigger final : public Trigger<optional<bool>, optional<bool> > {
- public:
-  explicit StateChangeTrigger(BinarySensor *parent) {
-    parent->add_full_state_callback(
-        [this](optional<bool> old_state, optional<bool> state) { this->trigger(old_state, state); });
-  }
-};
-
-template<typename... Ts> class BinarySensorCondition final : public Condition<Ts...> {
- public:
-  BinarySensorCondition(BinarySensor *parent, bool state) : parent_(parent), state_(state) {}
-  bool check(const Ts &...x) override { return this->parent_->state == this->state_; }
-
- protected:
-  BinarySensor *parent_;
-  bool state_;
-};
-
-template<typename... Ts> class BinarySensorPublishAction final : public Action<Ts...> {
- public:
-  explicit BinarySensorPublishAction(BinarySensor *sensor) : sensor_(sensor) {}
-  TEMPLATABLE_VALUE(bool, state)
-
-  void play(const Ts &...x) override {
-    auto val = this->state_.value(x...);
-    this->sensor_->publish_state(val);
-  }
-
- protected:
-  BinarySensor *sensor_;
-};
-
 template<typename... Ts> class BinarySensorInvalidateAction final : public Action<Ts...> {
  public:
   explicit BinarySensorInvalidateAction(BinarySensor *sensor) : sensor_(sensor) {}

esphome/components/bk72xx_ble_tracker/__init__.py

@@ -53,7 +53,6 @@ BK72xxBLETracker = bk72xx_ble_tracker_ns.class_(
 )
 
 StartScanAction = bk72xx_ble_tracker_ns.class_("StartScanAction", automation.Action)
-StopScanAction = bk72xx_ble_tracker_ns.class_("StopScanAction", automation.Action)
 
 ESPBTAdvertiseTrigger = ble_automation.ESPBTAdvertiseTrigger
 BLEServiceDataAdvertiseTrigger = ble_automation.BLEServiceDataAdvertiseTrigger
@@ -121,9 +120,8 @@ async def start_scan_action_to_code(
     return var
 
 
-@automation.register_action(
+automation.register_apply_action(
     "bk72xx_ble_tracker.stop_scan",
-    StopScanAction,
     automation.maybe_simple_id(
         cv.Schema(
             {
@@ -131,17 +129,8 @@ async def start_scan_action_to_code(
             }
         )
     ),
-    synchronous=True,
+    automation.ApplyCall("stop_scan()"),
 )
-async def stop_scan_action_to_code(
-    config: ConfigType,
-    action_id: ID,
-    template_arg: cg.TemplateArguments,
-    args: list,
-) -> cg.MockObj:
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
-    return var
 
 
 async def to_code(config: ConfigType) -> None:

esphome/components/bk72xx_ble_tracker/automation.h

@@ -38,11 +38,6 @@ template<typename... Ts> class StartScanAction final : public Action<Ts...>, pub
   }
 };
 
-template<typename... Ts> class StopScanAction final : public Action<Ts...>, public Parented<BK72xxBLETracker> {
- public:
-  void play(const Ts &...x) override { this->parent_->stop_scan(); }
-};
-
 }  // namespace esphome::bk72xx_ble_tracker
 
 #endif  // USE_LIBRETINY

esphome/components/button/automation.h

@@ -16,11 +16,4 @@ template<typename... Ts> class PressAction final : public Action<Ts...> {
   Button *button_;
 };
 
-class ButtonPressTrigger final : public Trigger<> {
- public:
-  ButtonPressTrigger(Button *button) {
-    button->add_on_press_callback([this]() { this->trigger(); });
-  }
-};
-
 }  // namespace esphome::button

esphome/components/cc1101/__init__.py

@@ -424,91 +424,41 @@ async def send_packet_action_to_code(config, action_id, template_arg, args):
     return var
 
 
-# Setter action definitions: (setter_name, validator, template_type, enum_map)
-_SETTER_ACTIONS = [
-    (
-        "set_frequency",
-        cv.All(cv.frequency, cv.float_range(min=300.0e6, max=928.0e6)),
-        float,
-        None,
-    ),
-    ("set_output_power", cv.float_range(min=-30.0, max=11.0), float, None),
-    ("set_modulation_type", cv.enum(MODULATION, upper=False), Modulation, MODULATION),
-    ("set_symbol_rate", cv.float_range(min=600, max=500000), float, None),
-    (
-        "set_rx_attenuation",
-        cv.enum(RX_ATTENUATION, upper=False),
-        RxAttenuation,
-        RX_ATTENUATION,
-    ),
-    ("set_dc_blocking_filter", cv.boolean, bool, None),
-    ("set_manchester", cv.boolean, bool, None),
-    (
-        "set_filter_bandwidth",
-        cv.All(cv.frequency, cv.float_range(min=58000, max=812000)),
-        float,
-        None,
-    ),
-    (
-        "set_fsk_deviation",
-        cv.All(cv.frequency, cv.float_range(min=1500, max=381000)),
-        float,
-        None,
-    ),
-    ("set_msk_deviation", cv.int_range(min=1, max=8), cg.uint8, None),
-    ("set_channel", cv.uint8_t, cg.uint8, None),
-    (
-        "set_channel_spacing",
-        cv.All(cv.frequency, cv.float_range(min=25000, max=405000)),
-        float,
-        None,
-    ),
-    (
-        "set_if_frequency",
-        cv.All(cv.frequency, cv.float_range(min=25000, max=788000)),
-        float,
-        None,
-    ),
-]
+_CONFIG_VALIDATORS = {opt.schema: validator for opt, validator in CONFIG_MAP.items()}
+
+# Each key has a set_<key> action validated exactly like the config option.
+_SETTER_ACTIONS = (
+    (CONF_FREQUENCY, cg.float_),
+    (CONF_OUTPUT_POWER, cg.float_),
+    (CONF_MODULATION_TYPE, Modulation),
+    (CONF_SYMBOL_RATE, cg.float_),
+    (CONF_RX_ATTENUATION, RxAttenuation),
+    (CONF_DC_BLOCKING_FILTER, cg.bool_),
+    (CONF_MANCHESTER, cg.bool_),
+    (CONF_FILTER_BANDWIDTH, cg.float_),
+    (CONF_FSK_DEVIATION, cg.float_),
+    (CONF_MSK_DEVIATION, cg.uint8),
+    (CONF_CHANNEL, cg.uint8),
+    (CONF_CHANNEL_SPACING, cg.float_),
+    (CONF_IF_FREQUENCY, cg.float_),
+)
 
 
-def _register_setter_actions():
-    for setter_name, validator, templ_type, enum_map in _SETTER_ACTIONS:
-        class_name = (
-            "".join(word.capitalize() for word in setter_name.split("_")) + "Action"
+def _register_setter_actions() -> None:
+    for conf_key, value_type in _SETTER_ACTIONS:
+        automation.register_apply_action(
+            f"cc1101.set_{conf_key}",
+            cv.maybe_simple_value(
+                {
+                    cv.GenerateID(): cv.use_id(CC1101Component),
+                    cv.Required(CONF_VALUE): cv.templatable(
+                        _CONFIG_VALIDATORS[conf_key]
+                    ),
+                },
+                key=CONF_VALUE,
+            ),
+            automation.ApplyField(CONF_VALUE, f"set_{conf_key}", value_type),
         )
-        action_cls = ns.class_(
-            class_name, automation.Action, cg.Parented.template(CC1101Component)
-        )
-        schema = cv.maybe_simple_value(
-            {
-                cv.GenerateID(): cv.use_id(CC1101Component),
-                cv.Required(CONF_VALUE): cv.templatable(validator),
-            },
-            key=CONF_VALUE,
-        )
-
-        async def _setter_action_to_code(
-            config,
-            action_id,
-            template_arg,
-            args,
-            _setter=setter_name,
-            _type=templ_type,
-            _map=enum_map,
-        ):
-            var = cg.new_Pvariable(action_id, template_arg)
-            await cg.register_parented(var, config[CONF_ID])
-            data = config[CONF_VALUE]
-            if _map and not cg.is_template(data):
-                data = _map[data]
-            templ_ = await cg.templatable(data, args, _type)
-            cg.add(getattr(var, _setter)(templ_))
-            return var
-
-        automation.register_action(
-            f"cc1101.{setter_name}", action_cls, schema, synchronous=True
-        )(_setter_action_to_code)
 
 
 _register_setter_actions()

esphome/components/cc1101/cc1101.h

@@ -174,83 +174,4 @@ template<typename... Ts> class SendPacketAction final : public Action<Ts...>, pu
   size_t data_static_len_{0};
 };
 
-template<typename... Ts> class SetSymbolRateAction final : public Action<Ts...>, public Parented<CC1101Component> {
- public:
-  TEMPLATABLE_VALUE(float, symbol_rate)
-  void play(const Ts &...x) override { this->parent_->set_symbol_rate(this->symbol_rate_.value(x...)); }
-};
-
-template<typename... Ts> class SetFrequencyAction final : public Action<Ts...>, public Parented<CC1101Component> {
- public:
-  TEMPLATABLE_VALUE(float, frequency)
-  void play(const Ts &...x) override { this->parent_->set_frequency(this->frequency_.value(x...)); }
-};
-
-template<typename... Ts> class SetOutputPowerAction final : public Action<Ts...>, public Parented<CC1101Component> {
- public:
-  TEMPLATABLE_VALUE(float, output_power)
-  void play(const Ts &...x) override { this->parent_->set_output_power(this->output_power_.value(x...)); }
-};
-
-template<typename... Ts> class SetModulationTypeAction final : public Action<Ts...>, public Parented<CC1101Component> {
- public:
-  TEMPLATABLE_VALUE(Modulation, modulation_type)
-  void play(const Ts &...x) override { this->parent_->set_modulation_type(this->modulation_type_.value(x...)); }
-};
-
-template<typename... Ts> class SetRxAttenuationAction final : public Action<Ts...>, public Parented<CC1101Component> {
- public:
-  TEMPLATABLE_VALUE(RxAttenuation, rx_attenuation)
-  void play(const Ts &...x) override { this->parent_->set_rx_attenuation(this->rx_attenuation_.value(x...)); }
-};
-
-template<typename... Ts>
-class SetDcBlockingFilterAction final : public Action<Ts...>, public Parented<CC1101Component> {
- public:
-  TEMPLATABLE_VALUE(bool, dc_blocking_filter)
-  void play(const Ts &...x) override { this->parent_->set_dc_blocking_filter(this->dc_blocking_filter_.value(x...)); }
-};
-
-template<typename... Ts> class SetManchesterAction final : public Action<Ts...>, public Parented<CC1101Component> {
- public:
-  TEMPLATABLE_VALUE(bool, manchester)
-  void play(const Ts &...x) override { this->parent_->set_manchester(this->manchester_.value(x...)); }
-};
-
-template<typename... Ts> class SetFilterBandwidthAction final : public Action<Ts...>, public Parented<CC1101Component> {
- public:
-  TEMPLATABLE_VALUE(float, filter_bandwidth)
-  void play(const Ts &...x) override { this->parent_->set_filter_bandwidth(this->filter_bandwidth_.value(x...)); }
-};
-
-template<typename... Ts> class SetFskDeviationAction final : public Action<Ts...>, public Parented<CC1101Component> {
- public:
-  TEMPLATABLE_VALUE(float, fsk_deviation)
-  void play(const Ts &...x) override { this->parent_->set_fsk_deviation(this->fsk_deviation_.value(x...)); }
-};
-
-template<typename... Ts> class SetMskDeviationAction final : public Action<Ts...>, public Parented<CC1101Component> {
- public:
-  TEMPLATABLE_VALUE(uint8_t, msk_deviation)
-  void play(const Ts &...x) override { this->parent_->set_msk_deviation(this->msk_deviation_.value(x...)); }
-};
-
-template<typename... Ts> class SetChannelAction final : public Action<Ts...>, public Parented<CC1101Component> {
- public:
-  TEMPLATABLE_VALUE(uint8_t, channel)
-  void play(const Ts &...x) override { this->parent_->set_channel(this->channel_.value(x...)); }
-};
-
-template<typename... Ts> class SetChannelSpacingAction final : public Action<Ts...>, public Parented<CC1101Component> {
- public:
-  TEMPLATABLE_VALUE(float, channel_spacing)
-  void play(const Ts &...x) override { this->parent_->set_channel_spacing(this->channel_spacing_.value(x...)); }
-};
-
-template<typename... Ts> class SetIfFrequencyAction final : public Action<Ts...>, public Parented<CC1101Component> {
- public:
-  TEMPLATABLE_VALUE(float, if_frequency)
-  void play(const Ts &...x) override { this->parent_->set_if_frequency(this->if_frequency_.value(x...)); }
-};
-
 }  // namespace esphome::cc1101

esphome/components/climate/__init__.py

@@ -50,18 +50,13 @@ from esphome.const import (
     CONF_VISUAL,
     CONF_WEB_SERVER,
 )
-from esphome.core import CORE, ID, CoroPriority, Lambda, coroutine_with_priority
+from esphome.core import CORE, CoroPriority, coroutine_with_priority
 from esphome.core.entity_helpers import (
     entity_duplicate_validator,
     queue_entity_register,
     setup_entity,
 )
-from esphome.cpp_generator import (
-    LambdaExpression,
-    MockObj,
-    MockObjClass,
-    TemplateArgsType,
-)
+from esphome.cpp_generator import MockObj, MockObjClass
 from esphome.types import ConfigType, SafeExpType
 
 IS_PLATFORM_COMPONENT = True
@@ -169,7 +164,6 @@ def visual_temperature_step(value: Any) -> ConfigType:
 
 
 # Actions
-ControlAction = climate_ns.class_("ControlAction", automation.Action)
 StateTrigger = climate_ns.class_(
     "StateTrigger", automation.Trigger.template(Climate.operator("ref"))
 )
@@ -500,78 +494,35 @@ CLIMATE_CONTROL_ACTION_SCHEMA = cv.Schema(
 )
 
 
-@automation.register_action(
+automation.register_apply_action(
     "climate.control",
-    ControlAction,
     CLIMATE_CONTROL_ACTION_SCHEMA,
-    synchronous=True,
+    automation.ApplyField(CONF_MODE, "set_mode", ClimateMode),
+    automation.ApplyField(CONF_TARGET_TEMPERATURE, "set_target_temperature", cg.float_),
+    automation.ApplyField(
+        CONF_TARGET_TEMPERATURE_LOW, "set_target_temperature_low", cg.float_
+    ),
+    automation.ApplyField(
+        CONF_TARGET_TEMPERATURE_HIGH, "set_target_temperature_high", cg.float_
+    ),
+    automation.ApplyField(CONF_TARGET_HUMIDITY, "set_target_humidity", cg.float_),
+    automation.ApplyField(CONF_FAN_MODE, "set_fan_mode", ClimateFanMode),
+    automation.ApplyField(
+        CONF_CUSTOM_FAN_MODE,
+        "set_fan_mode",
+        cg.std_string,
+        const_fn=automation.literal_with_length,
+    ),
+    automation.ApplyField(CONF_PRESET, "set_preset", ClimatePreset),
+    automation.ApplyField(
+        CONF_CUSTOM_PRESET,
+        "set_preset",
+        cg.std_string,
+        const_fn=automation.literal_with_length,
+    ),
+    automation.ApplyField(CONF_SWING_MODE, "set_swing_mode", ClimateSwingMode),
+    call="make_call",
 )
-async def climate_control_to_code(
-    config: ConfigType,
-    action_id: ID,
-    template_arg: cg.TemplateArguments,
-    args: TemplateArgsType,
-) -> MockObj:
-    paren = await cg.get_variable(config[CONF_ID])
-
-    # All configured fields are folded into a single stateless lambda whose
-    # constants live in flash; the action stores only a function pointer.
-    # For custom_fan_mode/custom_preset the static-string path emits the
-    # (const char *, size_t) overload of set_fan_mode/set_preset to avoid
-    # constructing a std::string and calling runtime strlen.
-    FIELDS = (
-        (CONF_MODE, "set_mode", ClimateMode),
-        (CONF_TARGET_TEMPERATURE, "set_target_temperature", cg.float_),
-        (CONF_TARGET_TEMPERATURE_LOW, "set_target_temperature_low", cg.float_),
-        (CONF_TARGET_TEMPERATURE_HIGH, "set_target_temperature_high", cg.float_),
-        (CONF_TARGET_HUMIDITY, "set_target_humidity", cg.float_),
-        (CONF_FAN_MODE, "set_fan_mode", ClimateFanMode),
-        (CONF_CUSTOM_FAN_MODE, "set_fan_mode", cg.std_string),
-        (CONF_PRESET, "set_preset", ClimatePreset),
-        (CONF_CUSTOM_PRESET, "set_preset", cg.std_string),
-        (CONF_SWING_MODE, "set_swing_mode", ClimateSwingMode),
-    )
-
-    # Normalize trigger args to `const std::remove_cvref_t<T> &` so the
-    # apply lambda and any inner field lambdas (generated below via
-    # `process_lambda`) share one parameter spelling that's well-formed for
-    # any T (value, ref, or const-ref). Matches ControlAction::ApplyFn.
-    normalized_args = [
-        (cg.RawExpression(f"const std::remove_cvref_t<{cg.safe_exp(t)}> &"), n)
-        for t, n in args
-    ]
-
-    fwd_args = ", ".join(name for _, name in args)
-    body_lines: list[str] = []
-
-    for conf_key, setter, type_ in FIELDS:
-        if (value := config.get(conf_key)) is None:
-            continue
-        if isinstance(value, Lambda):
-            inner = await cg.process_lambda(value, normalized_args, return_type=type_)
-            body_lines.append(f"call.{setter}(({inner})({fwd_args}));")
-        elif type_ is cg.std_string:
-            # Static custom strings: emit a flash literal and pass the
-            # UTF-8 byte length to skip the runtime strlen inside
-            # set_fan_mode/set_preset.
-            literal = cg.safe_exp(value)
-            body_lines.append(
-                f"call.{setter}({literal}, {len(value.encode('utf-8'))});"
-            )
-        else:
-            body_lines.append(f"call.{setter}({cg.safe_exp(value)});")
-
-    apply_args = [
-        (ClimateCall.operator("ref"), "call"),
-        *normalized_args,
-    ]
-    apply_lambda = LambdaExpression(
-        ["\n".join(body_lines)],
-        apply_args,
-        capture="",
-        return_type=cg.void,
-    )
-    return cg.new_Pvariable(action_id, template_arg, paren, apply_lambda)
 
 
 @coroutine_with_priority(CoroPriority.CORE)

esphome/components/climate/automation.h

@@ -5,34 +5,6 @@
 
 namespace esphome::climate {
 
-// All configured fields are baked into a single stateless lambda whose
-// constants live in flash. The action only stores one function pointer
-// plus one parent pointer, regardless of how many fields the user set.
-// Trigger args are forwarded to the apply function so user lambdas
-// (e.g. `target_temperature: !lambda "return x;"`) keep working.
-//
-// Trigger args are normalized to `const std::remove_cvref_t<Ts> &...` so
-// the codegen can emit a matching parameter list for both the apply lambda
-// and any inner field lambdas without producing invalid C++ source text
-// (e.g. `const T & &` if Ts already carries a reference, or `const const
-// T &` if Ts already carries a const). This keeps trigger args no-copy
-// regardless of whether the trigger supplies `T`, `T &`, or `const T &`.
-template<typename... Ts> class ControlAction final : public Action<Ts...> {
- public:
-  using ApplyFn = void (*)(ClimateCall &, const std::remove_cvref_t<Ts> &...);
-  ControlAction(Climate *climate, ApplyFn apply) : climate_(climate), apply_(apply) {}
-
-  void play(const Ts &...x) override {
-    auto call = this->climate_->make_call();
-    this->apply_(call, x...);
-    call.perform();
-  }
-
- protected:
-  Climate *climate_;
-  ApplyFn apply_;
-};
-
 class ControlTrigger final : public Trigger<ClimateCall &> {
  public:
   ControlTrigger(Climate *climate) {

esphome/components/climate_ir/__init__.py

@@ -14,6 +14,8 @@ from esphome.types import ConfigType, SafeExpType
 
 _LOGGER = logging.getLogger(__name__)
 
+CONF_SUPPORTS_HEAT_COOL = "supports_heat_cool"
+
 DEPENDENCIES = ["remote_transmitter"]
 AUTO_LOAD = ["sensor", "remote_base"]
 CODEOWNERS = ["@glmnet"]
@@ -37,6 +39,7 @@ def climate_ir_schema(
             {
                 cv.Optional(CONF_SUPPORTS_COOL, default=True): cv.boolean,
                 cv.Optional(CONF_SUPPORTS_HEAT, default=True): cv.boolean,
+                cv.Optional(CONF_SUPPORTS_HEAT_COOL): cv.boolean,
                 cv.Optional(CONF_SENSOR): cv.use_id(sensor.Sensor),
                 cv.Optional(CONF_HUMIDITY_SENSOR): cv.use_id(sensor.Sensor),
             }
@@ -61,8 +64,13 @@ def climate_ir_with_receiver_schema(
 async def register_climate_ir(var: MockObj, config: ConfigType) -> None:
     await cg.register_component(var, config)
     await remote_base.register_transmittable(var, config)
-    cg.add(var.set_supports_cool(config[CONF_SUPPORTS_COOL]))
-    cg.add(var.set_supports_heat(config[CONF_SUPPORTS_HEAT]))
+    supports_cool = config[CONF_SUPPORTS_COOL]
+    supports_heat = config[CONF_SUPPORTS_HEAT]
+    cg.add(var.set_supports_cool(supports_cool))
+    cg.add(var.set_supports_heat(supports_heat))
+    # The header default is true, so only the false case needs a call.
+    if not config.get(CONF_SUPPORTS_HEAT_COOL, supports_cool and supports_heat):
+        cg.add(var.set_supports_heat_cool(False))
     if remote_base.CONF_RECEIVER_ID in config:
         await remote_base.register_listener(var, config)
     if sensor_id := config.get(CONF_SENSOR):

esphome/components/climate_ir/climate_ir.cpp

@@ -13,15 +13,7 @@ climate::ClimateTraits ClimateIR::traits() {
   if (this->humidity_sensor_ != nullptr) {
     traits.add_feature_flags(climate::CLIMATE_SUPPORTS_CURRENT_HUMIDITY);
   }
-  traits.set_supported_modes({climate::CLIMATE_MODE_OFF, climate::CLIMATE_MODE_HEAT_COOL});
-  if (this->supports_cool_)
-    traits.add_supported_mode(climate::CLIMATE_MODE_COOL);
-  if (this->supports_heat_)
-    traits.add_supported_mode(climate::CLIMATE_MODE_HEAT);
-  if (this->supports_dry_)
-    traits.add_supported_mode(climate::CLIMATE_MODE_DRY);
-  if (this->supports_fan_only_)
-    traits.add_supported_mode(climate::CLIMATE_MODE_FAN_ONLY);
+  traits.set_supported_modes(this->modes_);
 
   traits.set_visual_min_temperature(this->minimum_temperature_);
   traits.set_visual_max_temperature(this->maximum_temperature_);
@@ -94,9 +86,12 @@ void ClimateIR::dump_config() {
                 "  Min. Temperature: %.1f°C\n"
                 "  Max. Temperature: %.1f°C\n"
                 "  Supports HEAT: %s\n"
-                "  Supports COOL: %s",
-                this->minimum_temperature_, this->maximum_temperature_, YESNO(this->supports_heat_),
-                YESNO(this->supports_cool_));
+                "  Supports COOL: %s\n"
+                "  Supports HEAT_COOL: %s",
+                this->minimum_temperature_, this->maximum_temperature_,
+                YESNO(this->modes_.count(climate::CLIMATE_MODE_HEAT)),
+                YESNO(this->modes_.count(climate::CLIMATE_MODE_COOL)),
+                YESNO(this->modes_.count(climate::CLIMATE_MODE_HEAT_COOL)));
 }
 
 }  // namespace esphome::climate_ir

esphome/components/climate_ir/climate_ir.h

@@ -30,8 +30,10 @@ class ClimateIR : public Component,
     this->minimum_temperature_ = minimum_temperature;
     this->maximum_temperature_ = maximum_temperature;
     this->temperature_step_ = temperature_step;
-    this->supports_dry_ = supports_dry;
-    this->supports_fan_only_ = supports_fan_only;
+    if (supports_dry)
+      this->modes_.insert(climate::CLIMATE_MODE_DRY);
+    if (supports_fan_only)
+      this->modes_.insert(climate::CLIMATE_MODE_FAN_ONLY);
     this->fan_modes_ = fan_modes;
     this->swing_modes_ = swing_modes;
     this->presets_ = presets;
@@ -39,8 +41,11 @@ class ClimateIR : public Component,
 
   void setup() override;
   void dump_config() override;
-  void set_supports_cool(bool supports_cool) { this->supports_cool_ = supports_cool; }
-  void set_supports_heat(bool supports_heat) { this->supports_heat_ = supports_heat; }
+  void set_supports_cool(bool supports_cool) { this->set_mode_supported_(climate::CLIMATE_MODE_COOL, supports_cool); }
+  void set_supports_heat(bool supports_heat) { this->set_mode_supported_(climate::CLIMATE_MODE_HEAT, supports_heat); }
+  void set_supports_heat_cool(bool supports_heat_cool) {
+    this->set_mode_supported_(climate::CLIMATE_MODE_HEAT_COOL, supports_heat_cool);
+  }
   void set_sensor(sensor::Sensor *sensor) { this->sensor_ = sensor; }
   void set_humidity_sensor(sensor::Sensor *sensor) { this->humidity_sensor_ = sensor; }
 
@@ -58,10 +63,18 @@ class ClimateIR : public Component,
   // Dummy implement on_receive so implementation is optional for inheritors
   bool on_receive(remote_base::RemoteReceiveData data) override { return false; };
 
-  bool supports_cool_{true};
-  bool supports_heat_{true};
-  bool supports_dry_{false};
-  bool supports_fan_only_{false};
+  ESPHOME_ALWAYS_INLINE void set_mode_supported_(climate::ClimateMode mode, bool supported) {
+    if (supported) {
+      this->modes_.insert(mode);
+    } else {
+      this->modes_.erase(mode);
+    }
+  }
+
+  // The HEAT_COOL default (supports_cool && supports_heat) is resolved during code generation.
+  static constexpr climate::ClimateModeMask DEFAULT_MODES{climate::CLIMATE_MODE_OFF, climate::CLIMATE_MODE_COOL,
+                                                          climate::CLIMATE_MODE_HEAT, climate::CLIMATE_MODE_HEAT_COOL};
+  climate::ClimateModeMask modes_{DEFAULT_MODES};
   climate::ClimateFanModeMask fan_modes_{};
   climate::ClimateSwingModeMask swing_modes_{};
   climate::ClimatePresetMask presets_{};

esphome/components/const/__init__.py

@@ -23,6 +23,7 @@ CONF_ENABLE_OTA_DOWNGRADE_PROTECTION = "enable_ota_downgrade_protection"
 CONF_ENABLED = "enabled"
 CONF_GYROSCOPE_ODR = "gyroscope_odr"
 CONF_GYROSCOPE_RANGE = "gyroscope_range"
+CONF_HUMIDITY_SOURCE = "humidity_source"
 CONF_IAQ = "iaq"
 CONF_IGNORE_NOT_FOUND = "ignore_not_found"
 CONF_IS_WRGB = "is_wrgb"
@@ -61,3 +62,4 @@ ICON_SOLAR_POWER = "mdi:solar-power"
 KEY_METADATA = "metadata"
 
 UNIT_AMPERE_HOUR = "Ah"
+UNIT_COUNTS = "#"

esphome/components/cover/__init__.py

@@ -1,9 +1,7 @@
-from collections.abc import Callable
-from dataclasses import dataclass
 import logging
 
 from esphome import automation
-from esphome.automation import Condition, maybe_simple_id
+from esphome.automation import maybe_simple_id
 import esphome.codegen as cg
 from esphome.components import mqtt, web_server
 import esphome.config_validation as cv
@@ -38,15 +36,15 @@ from esphome.const import (
     DEVICE_CLASS_SHUTTER,
     DEVICE_CLASS_WINDOW,
 )
-from esphome.core import CORE, ID, CoroPriority, Lambda, coroutine_with_priority
+from esphome.core import CORE, CoroPriority, coroutine_with_priority
 from esphome.core.entity_helpers import (
     entity_duplicate_validator,
     queue_entity_register,
     setup_device_class,
     setup_entity,
 )
-from esphome.cpp_generator import LambdaExpression, MockObj, MockObjClass
-from esphome.types import ConfigType, SafeExpType, TemplateArgsType
+from esphome.cpp_generator import MockObj, MockObjClass
+from esphome.types import ConfigType, SafeExpType
 
 IS_PLATFORM_COMPONENT = True
 
@@ -70,7 +68,6 @@ _LOGGER = logging.getLogger(__name__)
 cover_ns = cg.esphome_ns.namespace("cover")
 
 Cover = cover_ns.class_("Cover", cg.EntityBase)
-CoverCall = cover_ns.class_("CoverCall")
 
 COVER_OPEN = cover_ns.COVER_OPEN
 COVER_CLOSED = cover_ns.COVER_CLOSED
@@ -90,14 +87,6 @@ COVER_OPERATIONS = {
 validate_cover_operation = cv.enum(COVER_OPERATIONS, upper=True)
 
 # Actions
-OpenAction = cover_ns.class_("OpenAction", automation.Action)
-CloseAction = cover_ns.class_("CloseAction", automation.Action)
-StopAction = cover_ns.class_("StopAction", automation.Action)
-ToggleAction = cover_ns.class_("ToggleAction", automation.Action)
-ControlAction = cover_ns.class_("ControlAction", automation.Action)
-CoverPublishAction = cover_ns.class_("CoverPublishAction", automation.Action)
-CoverIsOpenCondition = cover_ns.class_("CoverIsOpenCondition", Condition)
-CoverIsClosedCondition = cover_ns.class_("CoverIsClosedCondition", Condition)
 CoverOpenedTrigger = cover_ns.class_(
     "CoverOpenedTrigger", automation.Trigger.template()
 )
@@ -256,56 +245,15 @@ COVER_ACTION_SCHEMA = maybe_simple_id(
 )
 
 
-@automation.register_action(
-    "cover.open", OpenAction, COVER_ACTION_SCHEMA, synchronous=True
-)
-async def cover_open_to_code(
-    config: ConfigType,
-    action_id: ID,
-    template_arg: cg.TemplateArguments,
-    args: TemplateArgsType,
-) -> MockObj:
-    paren = await cg.get_variable(config[CONF_ID])
-    return cg.new_Pvariable(action_id, template_arg, paren)
-
-
-@automation.register_action(
-    "cover.close", CloseAction, COVER_ACTION_SCHEMA, synchronous=True
-)
-async def cover_close_to_code(
-    config: ConfigType,
-    action_id: ID,
-    template_arg: cg.TemplateArguments,
-    args: TemplateArgsType,
-) -> MockObj:
-    paren = await cg.get_variable(config[CONF_ID])
-    return cg.new_Pvariable(action_id, template_arg, paren)
-
-
-@automation.register_action(
-    "cover.stop", StopAction, COVER_ACTION_SCHEMA, synchronous=True
-)
-async def cover_stop_to_code(
-    config: ConfigType,
-    action_id: ID,
-    template_arg: cg.TemplateArguments,
-    args: TemplateArgsType,
-) -> MockObj:
-    paren = await cg.get_variable(config[CONF_ID])
-    return cg.new_Pvariable(action_id, template_arg, paren)
-
-
-@automation.register_action(
-    "cover.toggle", ToggleAction, COVER_ACTION_SCHEMA, synchronous=True
-)
-async def cover_toggle_to_code(
-    config: ConfigType,
-    action_id: ID,
-    template_arg: cg.TemplateArguments,
-    args: TemplateArgsType,
-) -> MockObj:
-    paren = await cg.get_variable(config[CONF_ID])
-    return cg.new_Pvariable(action_id, template_arg, paren)
+for _name, _command in (
+    ("cover.open", "set_command_open()"),
+    ("cover.close", "set_command_close()"),
+    ("cover.stop", "set_command_stop()"),
+    ("cover.toggle", "set_command_toggle()"),
+):
+    automation.register_apply_action(
+        _name, COVER_ACTION_SCHEMA, automation.ApplyCall(_command), call="make_call"
+    )
 
 
 COVER_CONTROL_ACTION_SCHEMA = cv.Schema(
@@ -319,125 +267,30 @@ COVER_CONTROL_ACTION_SCHEMA = cv.Schema(
 )
 
 
-@dataclass(frozen=True)
-class ApplyField:
-    """One field in a folded-lambda action.
-
-    `conf_key` is the YAML key looked up in `config`. When present, the
-    helper emits `statement_fn(target, value_expr)` into the lambda body.
-    `target` is whatever the statement function needs to identify the
-    field (typically a setter name like `"set_position"` or a struct
-    member like `"position"`). `type_` is the C++ return type for
-    `cg.process_lambda` when the value is a user lambda.
-    """
-
-    conf_key: str
-    target: str
-    type_: object
-
-
-async def build_apply_lambda_action(
-    config: ConfigType,
-    action_id: ID,
-    template_arg: cg.TemplateArguments,
-    args: TemplateArgsType,
-    fields: tuple[ApplyField, ...],
-    prefix_args: list[tuple[object, str]],
-    statement_fn: Callable[[str, str], str],
-) -> MockObj:
-    """Fold configured fields into a single stateless apply lambda action.
-
-    Used by both `cover.control` and `cover.template.publish` (and shared
-    with the template/cover platform). Constants are emitted as flash
-    immediates; user lambdas are invoked inline so trigger args still flow.
-    Trigger arg types are normalized to `const std::remove_cvref_t<T> &`
-    to match the ApplyFn signature for any T (value, ref, or const-ref).
-    """
-    paren = await cg.get_variable(config[CONF_ID])
-    # Normalize trigger args to `const std::remove_cvref_t<T> &` so the
-    # apply lambda and any inner field lambdas (generated below via
-    # `process_lambda`) share one parameter spelling that's well-formed for
-    # any T.
-    normalized_args = [
-        (cg.RawExpression(f"const std::remove_cvref_t<{cg.safe_exp(t)}> &"), n)
-        for t, n in args
-    ]
-
-    fwd_args = ", ".join(name for _, name in args)
-    body_lines: list[str] = []
-    for field in fields:
-        if (value := config.get(field.conf_key)) is None:
-            continue
-        if isinstance(value, Lambda):
-            inner = await cg.process_lambda(
-                value, normalized_args, return_type=field.type_
-            )
-            value_expr = f"({inner})({fwd_args})"
-        else:
-            value_expr = str(cg.safe_exp(value))
-        body_lines.append(statement_fn(field.target, value_expr))
-
-    apply_args = [
-        *prefix_args,
-        *normalized_args,
-    ]
-    apply_lambda = LambdaExpression(
-        ["\n".join(body_lines)],
-        apply_args,
-        capture="",
-        return_type=cg.void,
-    )
-    return cg.new_Pvariable(action_id, template_arg, paren, apply_lambda)
-
-
 # CONF_STATE and CONF_POSITION are cv.Exclusive in the schema, so at most
 # one is present and both dispatch to set_position.
-_COVER_CONTROL_FIELDS: tuple[ApplyField, ...] = (
-    ApplyField(CONF_STOP, "set_stop", cg.bool_),
-    ApplyField(CONF_STATE, "set_position", cg.float_),
-    ApplyField(CONF_POSITION, "set_position", cg.float_),
-    ApplyField(CONF_TILT, "set_tilt", cg.float_),
+automation.register_apply_action(
+    "cover.control",
+    COVER_CONTROL_ACTION_SCHEMA,
+    automation.ApplyField(CONF_STOP, "set_stop", cg.bool_),
+    automation.ApplyField(CONF_STATE, "set_position", cg.float_),
+    automation.ApplyField(CONF_POSITION, "set_position", cg.float_),
+    automation.ApplyField(CONF_TILT, "set_tilt", cg.float_),
+    call="make_call",
 )
 
 
-@automation.register_action(
-    "cover.control", ControlAction, COVER_CONTROL_ACTION_SCHEMA, synchronous=True
-)
-async def cover_control_to_code(
-    config: ConfigType,
-    action_id: ID,
-    template_arg: cg.TemplateArguments,
-    args: TemplateArgsType,
-) -> MockObj:
-    return await build_apply_lambda_action(
-        config=config,
-        action_id=action_id,
-        template_arg=template_arg,
-        args=args,
-        fields=_COVER_CONTROL_FIELDS,
-        prefix_args=[(CoverCall.operator("ref"), "call")],
-        statement_fn=lambda setter, expr: f"call.{setter}({expr});",
-    )
-
-
 COVER_CONDITION_SCHEMA = cv.maybe_simple_value(
     {cv.Required(CONF_ID): cv.use_id(Cover)}, key=CONF_ID
 )
 
 
-async def cover_condition_to_code(
-    config: ConfigType, condition_id: ID, template_arg: MockObj, args: TemplateArgsType
-) -> MockObj:
-    paren = await cg.get_variable(config[CONF_ID])
-    return cg.new_Pvariable(condition_id, template_arg, paren)
-
-
-automation.register_condition(
-    "cover.is_open", CoverIsOpenCondition, COVER_CONDITION_SCHEMA
-)(cover_condition_to_code)
-automation.register_condition(
-    "cover.is_closed", CoverIsClosedCondition, COVER_CONDITION_SCHEMA
-)(cover_condition_to_code)
+automation.register_apply_condition(
+    "cover.is_open", COVER_CONDITION_SCHEMA, f"position == {COVER_OPEN}"
+)
+automation.register_apply_condition(
+    "cover.is_closed", COVER_CONDITION_SCHEMA, f"position == {COVER_CLOSED}"
+)
 
 
 @coroutine_with_priority(CoroPriority.CORE)

esphome/components/cover/automation.h

@@ -6,103 +6,6 @@
 
 namespace esphome::cover {
 
-template<typename... Ts> class OpenAction final : public Action<Ts...> {
- public:
-  explicit OpenAction(Cover *cover) : cover_(cover) {}
-
-  void play(const Ts &...x) override { this->cover_->make_call().set_command_open().perform(); }
-
- protected:
-  Cover *cover_;
-};
-
-template<typename... Ts> class CloseAction final : public Action<Ts...> {
- public:
-  explicit CloseAction(Cover *cover) : cover_(cover) {}
-
-  void play(const Ts &...x) override { this->cover_->make_call().set_command_close().perform(); }
-
- protected:
-  Cover *cover_;
-};
-
-template<typename... Ts> class StopAction final : public Action<Ts...> {
- public:
-  explicit StopAction(Cover *cover) : cover_(cover) {}
-
-  void play(const Ts &...x) override { this->cover_->make_call().set_command_stop().perform(); }
-
- protected:
-  Cover *cover_;
-};
-
-template<typename... Ts> class ToggleAction final : public Action<Ts...> {
- public:
-  explicit ToggleAction(Cover *cover) : cover_(cover) {}
-
-  void play(const Ts &...x) override { this->cover_->make_call().set_command_toggle().perform(); }
-
- protected:
-  Cover *cover_;
-};
-
-// All configured fields are baked into a single stateless lambda whose
-// constants live in flash. Each action stores only one function pointer
-// plus one parent pointer, regardless of how many fields the user set.
-// Trigger args are forwarded to the apply function so user lambdas
-// (e.g. `position: !lambda "return x;"`) keep working.
-//
-// Trigger args are normalized to `const std::remove_cvref_t<Ts> &...` so
-// the codegen can emit a matching parameter list for both the apply lambda
-// and any inner field lambdas without producing invalid C++ source text
-// (e.g. `const T & &` if Ts already carries a reference, or `const const
-// T &` if Ts already carries a const). This keeps trigger args no-copy
-// regardless of whether the trigger supplies `T`, `T &`, or `const T &`.
-
-template<typename... Ts> class ControlAction final : public Action<Ts...> {
- public:
-  using ApplyFn = void (*)(CoverCall &, const std::remove_cvref_t<Ts> &...);
-  ControlAction(Cover *cover, ApplyFn apply) : cover_(cover), apply_(apply) {}
-
-  void play(const Ts &...x) override {
-    auto call = this->cover_->make_call();
-    this->apply_(call, x...);
-    call.perform();
-  }
-
- protected:
-  Cover *cover_;
-  ApplyFn apply_;
-};
-
-template<typename... Ts> class CoverPublishAction final : public Action<Ts...> {
- public:
-  using ApplyFn = void (*)(Cover *, const std::remove_cvref_t<Ts> &...);
-  CoverPublishAction(Cover *cover, ApplyFn apply) : cover_(cover), apply_(apply) {}
-
-  void play(const Ts &...x) override {
-    this->apply_(this->cover_, x...);
-    this->cover_->publish_state();
-  }
-
- protected:
-  Cover *cover_;
-  ApplyFn apply_;
-};
-
-template<bool OPEN, typename... Ts> class CoverPositionCondition final : public Condition<Ts...> {
- public:
-  CoverPositionCondition(Cover *cover) : cover_(cover) {}
-
-  bool check(const Ts &...x) override { return this->cover_->position == (OPEN ? COVER_OPEN : COVER_CLOSED); }
-
- protected:
-  Cover *cover_;
-};
-
-template<typename... Ts> using CoverIsOpenCondition = CoverPositionCondition<true, Ts...>;
-template<typename... Ts> using CoverIsClosedCondition = CoverPositionCondition<false, Ts...>;
-
 template<bool OPEN> class CoverPositionTrigger final : public Trigger<> {
  public:
   CoverPositionTrigger(Cover *a_cover) : cover_(a_cover) {

esphome/components/datetime/__init__.py

@@ -1,3 +1,5 @@
+from collections.abc import Callable
+
 from esphome import automation
 import esphome.codegen as cg
 from esphome.components import mqtt, time, web_server
@@ -21,13 +23,13 @@ from esphome.const import (
     CONF_WEB_SERVER,
     CONF_YEAR,
 )
-from esphome.core import CORE, ID, CoroPriority, coroutine_with_priority
+from esphome.core import CORE, CoroPriority, coroutine_with_priority
 from esphome.core.entity_helpers import (
     entity_duplicate_validator,
     queue_entity_register,
     setup_entity,
 )
-from esphome.cpp_generator import MockObj, MockObjClass, TemplateArgsType
+from esphome.cpp_generator import MockObj, MockObjClass
 from esphome.types import ConfigType, SafeExpType
 
 CODEOWNERS = ["@rfdarter", "@jesserockz"]
@@ -40,11 +42,6 @@ DateEntity = datetime_ns.class_("DateEntity", DateTimeBase)
 TimeEntity = datetime_ns.class_("TimeEntity", DateTimeBase)
 DateTimeEntity = datetime_ns.class_("DateTimeEntity", DateTimeBase)
 
-# Actions
-DateSetAction = datetime_ns.class_("DateSetAction", automation.Action)
-TimeSetAction = datetime_ns.class_("TimeSetAction", automation.Action)
-DateTimeSetAction = datetime_ns.class_("DateTimeSetAction", automation.Action)
-
 DateTimeStateTrigger = datetime_ns.class_(
     "DateTimeStateTrigger", automation.Trigger.template(cg.ESPTime)
 )
@@ -181,118 +178,64 @@ async def to_code(config: ConfigType) -> None:
     cg.add_global(datetime_ns.using)
 
 
-@automation.register_action(
-    "datetime.date.set",
-    DateSetAction,
-    cv.Schema(
-        {
-            cv.Required(CONF_ID): cv.use_id(DateEntity),
-            cv.Required(CONF_DATE): cv.Any(
-                cv.returning_lambda, cv.date_time(date=True, time=False)
-            ),
-        }
-    ),
-    synchronous=True,
-)
-async def datetime_date_set_to_code(
-    config: ConfigType,
-    action_id: ID,
-    template_arg: cg.TemplateArguments,
-    args: TemplateArgsType,
-) -> MockObj:
-    action_var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(action_var, config[CONF_ID])
-
-    date_config = config[CONF_DATE]
-    if cg.is_template(date_config):
-        template_ = await cg.templatable(date_config, args, cg.ESPTime)
-        cg.add(action_var.set_date(template_))
-    else:
-        date_struct = cg.StructInitializer(
-            cg.ESPTime,
-            ("day_of_month", date_config[CONF_DAY]),
-            ("month", date_config[CONF_MONTH]),
-            ("year", date_config[CONF_YEAR]),
+def _esptime_initializer(
+    members: tuple[tuple[str, str], ...],
+) -> Callable[[ConfigType, ConfigType], str]:
+    def const_fn(config: ConfigType, value: ConfigType) -> str:
+        return str(
+            cg.StructInitializer(
+                cg.ESPTime, *((member, value[key]) for member, key in members)
+            )
         )
-        template_ = await cg.templatable(date_struct, args, cg.ESPTime)
-        cg.add(action_var.set_date(template_))
-    return action_var
+
+    return const_fn
 
 
-@automation.register_action(
-    "datetime.time.set",
-    TimeSetAction,
-    cv.Schema(
-        {
-            cv.Required(CONF_ID): cv.use_id(TimeEntity),
-            cv.Required(CONF_TIME): cv.Any(
-                cv.returning_lambda, cv.date_time(date=False, time=True)
-            ),
-        }
+# ESPTime member order, so the designated initializer compiles.
+_TIME_MEMBERS = (("second", CONF_SECOND), ("minute", CONF_MINUTE), ("hour", CONF_HOUR))
+_DATE_MEMBERS = (("day_of_month", CONF_DAY), ("month", CONF_MONTH), ("year", CONF_YEAR))
+
+for _name, _entity, _key, _target, _date, _time, _members in (
+    (
+        "datetime.date.set",
+        DateEntity,
+        CONF_DATE,
+        "set_date",
+        True,
+        False,
+        _DATE_MEMBERS,
     ),
-    synchronous=True,
-)
-async def datetime_time_set_to_code(
-    config: ConfigType,
-    action_id: ID,
-    template_arg: cg.TemplateArguments,
-    args: TemplateArgsType,
-) -> MockObj:
-    action_var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(action_var, config[CONF_ID])
-
-    time_config = config[CONF_TIME]
-    if cg.is_template(time_config):
-        template_ = await cg.templatable(time_config, args, cg.ESPTime)
-        cg.add(action_var.set_time(template_))
-    else:
-        time_struct = cg.StructInitializer(
-            cg.ESPTime,
-            ("second", time_config[CONF_SECOND]),
-            ("minute", time_config[CONF_MINUTE]),
-            ("hour", time_config[CONF_HOUR]),
-        )
-        template_ = await cg.templatable(time_struct, args, cg.ESPTime)
-        cg.add(action_var.set_time(template_))
-    return action_var
-
-
-@automation.register_action(
-    "datetime.datetime.set",
-    DateTimeSetAction,
-    cv.Schema(
-        {
-            cv.Required(CONF_ID): cv.use_id(DateTimeEntity),
-            cv.Required(CONF_DATETIME): cv.Any(
-                cv.returning_lambda, cv.date_time(date=True, time=True)
-            ),
-        },
+    (
+        "datetime.time.set",
+        TimeEntity,
+        CONF_TIME,
+        "set_time",
+        False,
+        True,
+        _TIME_MEMBERS,
     ),
-    synchronous=True,
-)
-async def datetime_datetime_set_to_code(
-    config: ConfigType,
-    action_id: ID,
-    template_arg: cg.TemplateArguments,
-    args: TemplateArgsType,
-) -> MockObj:
-    action_var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(action_var, config[CONF_ID])
-
-    datetime_config = config[CONF_DATETIME]
-    if cg.is_template(datetime_config):
-        template_ = await cg.templatable(datetime_config, args, cg.ESPTime)
-        cg.add(action_var.set_datetime(template_))
-    else:
-        datetime_struct = cg.StructInitializer(
-            cg.ESPTime,
-            ("second", datetime_config[CONF_SECOND]),
-            ("minute", datetime_config[CONF_MINUTE]),
-            ("hour", datetime_config[CONF_HOUR]),
-            ("day_of_month", datetime_config[CONF_DAY]),
-            ("month", datetime_config[CONF_MONTH]),
-            ("year", datetime_config[CONF_YEAR]),
-        )
-        template_ = await cg.templatable(datetime_struct, args, cg.ESPTime)
-        cg.add(action_var.set_datetime(template_))
-    return action_var
+    (
+        "datetime.datetime.set",
+        DateTimeEntity,
+        CONF_DATETIME,
+        "set_datetime",
+        True,
+        True,
+        _TIME_MEMBERS + _DATE_MEMBERS,
+    ),
+):
+    automation.register_apply_action(
+        _name,
+        cv.Schema(
+            {
+                cv.Required(CONF_ID): cv.use_id(_entity),
+                cv.Required(_key): cv.Any(
+                    cv.returning_lambda, cv.date_time(date=_date, time=_time)
+                ),
+            }
+        ),
+        automation.ApplyField(
+            _key, _target, cg.ESPTime, const_fn=_esptime_initializer(_members)
+        ),
+        call="make_call",
+    )

esphome/components/datetime/date_entity.h

@@ -98,20 +98,6 @@ class DateCall {
 
 inline DateCall DateEntity::make_call() { return DateCall(this); }
 
-template<typename... Ts> class DateSetAction final : public Action<Ts...>, public Parented<DateEntity> {
- public:
-  TEMPLATABLE_VALUE(ESPTime, date)
-
-  void play(const Ts &...x) override {
-    auto call = this->parent_->make_call();
-
-    if (this->date_.has_value()) {
-      call.set_date(this->date_.value(x...));
-    }
-    call.perform();
-  }
-};
-
 }  // namespace esphome::datetime
 
 #endif  // USE_DATETIME_DATE

esphome/components/datetime/datetime_entity.h

@@ -123,20 +123,6 @@ class DateTimeCall {
 
 inline DateTimeCall DateTimeEntity::make_call() { return DateTimeCall(this); }
 
-template<typename... Ts> class DateTimeSetAction final : public Action<Ts...>, public Parented<DateTimeEntity> {
- public:
-  TEMPLATABLE_VALUE(ESPTime, datetime)
-
-  void play(const Ts &...x) override {
-    auto call = this->parent_->make_call();
-
-    if (this->datetime_.has_value()) {
-      call.set_datetime(this->datetime_.value(x...));
-    }
-    call.perform();
-  }
-};
-
 #ifdef USE_TIME
 class OnDateTimeTrigger final : public Trigger<>, public Component, public Parented<DateTimeEntity> {
  public:

esphome/components/datetime/time_entity.h

@@ -100,20 +100,6 @@ class TimeCall {
 
 inline TimeCall TimeEntity::make_call() { return TimeCall(this); }
 
-template<typename... Ts> class TimeSetAction final : public Action<Ts...>, public Parented<TimeEntity> {
- public:
-  TEMPLATABLE_VALUE(ESPTime, time)
-
-  void play(const Ts &...x) override {
-    auto call = this->parent_->make_call();
-
-    if (this->time_.has_value()) {
-      call.set_time(this->time_.value(x...));
-    }
-    call.perform();
-  }
-};
-
 #ifdef USE_TIME
 class OnTimeTrigger final : public Trigger<>, public Component, public Parented<TimeEntity> {
  public:

esphome/components/deep_sleep/__init__.py

@@ -422,8 +422,12 @@ async def to_code(config: ConfigType) -> None:
 
     if CONF_TOUCH_WAKEUP in config:
         cg.add(var.set_touch_wakeup(config[CONF_TOUCH_WAKEUP]))
-    if CORE.using_zephyr and "zigbee" not in CORE.loaded_integrations:
-        zephyr_add_prj_conf("POWEROFF", True)
+    if CORE.using_zephyr:
+        # Devices are suspended when CPU is entering a low power state
+        # https://github.com/nrfconnect/sdk-zephyr/blob/v3.7.99-ncs2-2/doc/services/pm/device.rst#system-managed-device-power-management
+        zephyr_add_prj_conf("PM_DEVICE", True)
+        if "zigbee" not in CORE.loaded_integrations:
+            zephyr_add_prj_conf("POWEROFF", True)
 
     cg.add_define("USE_DEEP_SLEEP")
 

esphome/components/dfplayer/__init__.py

@@ -1,3 +1,5 @@
+from typing import Any
+
 from esphome import automation
 import esphome.codegen as cg
 from esphome.components import uart
@@ -16,6 +18,7 @@ DFPlayerIsPlayingCondition = dfplayer_ns.class_(
 
 MULTI_CONF = True
 CONF_FOLDER = "folder"
+CONF_ENABLE = "enable"
 CONF_EQ_PRESET = "eq_preset"
 CONF_ON_FINISHED_PLAYBACK = "on_finished_playback"
 
@@ -34,23 +37,6 @@ DEVICE = {
     "TF_CARD": Device.TF_CARD,
 }
 
-NextAction = dfplayer_ns.class_("NextAction", automation.Action)
-PreviousAction = dfplayer_ns.class_("PreviousAction", automation.Action)
-PlayMp3Action = dfplayer_ns.class_("PlayMp3Action", automation.Action)
-PlayFileAction = dfplayer_ns.class_("PlayFileAction", automation.Action)
-PlayFolderAction = dfplayer_ns.class_("PlayFolderAction", automation.Action)
-SetVolumeAction = dfplayer_ns.class_("SetVolumeAction", automation.Action)
-VolumeUpAction = dfplayer_ns.class_("VolumeUpAction", automation.Action)
-VolumeDownAction = dfplayer_ns.class_("VolumeDownAction", automation.Action)
-SetEqAction = dfplayer_ns.class_("SetEqAction", automation.Action)
-SleepAction = dfplayer_ns.class_("SleepAction", automation.Action)
-ResetAction = dfplayer_ns.class_("ResetAction", automation.Action)
-StartAction = dfplayer_ns.class_("StartAction", automation.Action)
-PauseAction = dfplayer_ns.class_("PauseAction", automation.Action)
-StopAction = dfplayer_ns.class_("StopAction", automation.Action)
-RandomAction = dfplayer_ns.class_("RandomAction", automation.Action)
-SetDeviceAction = dfplayer_ns.class_("SetDeviceAction", automation.Action)
-
 CONFIG_SCHEMA = cv.All(
     cv.Schema(
         {
@@ -84,41 +70,30 @@ async def to_code(config):
     await automation.build_callback_automations(var, config, _CALLBACK_AUTOMATIONS)
 
 
-@automation.register_action(
-    "dfplayer.play_next",
-    NextAction,
-    cv.Schema(
-        {
-            cv.GenerateID(): cv.use_id(DFPlayer),
-        }
-    ),
-    synchronous=True,
+DFPLAYER_ACTION_SCHEMA = cv.Schema(
+    {
+        cv.GenerateID(): cv.use_id(DFPlayer),
+    }
 )
-async def dfplayer_next_to_code(config, action_id, template_arg, args):
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
-    return var
 
+for _name, _call in (
+    ("dfplayer.play_next", "next()"),
+    ("dfplayer.play_previous", "previous()"),
+    ("dfplayer.volume_up", "volume_up()"),
+    ("dfplayer.volume_down", "volume_down()"),
+    ("dfplayer.sleep", "sleep()"),
+    ("dfplayer.reset", "reset()"),
+    ("dfplayer.start", "start()"),
+    ("dfplayer.pause", "pause()"),
+    ("dfplayer.stop", "stop()"),
+    ("dfplayer.random", "random()"),
+):
+    automation.register_apply_action(
+        _name, DFPLAYER_ACTION_SCHEMA, automation.ApplyCall(_call)
+    )
 
-@automation.register_action(
-    "dfplayer.play_previous",
-    PreviousAction,
-    cv.Schema(
-        {
-            cv.GenerateID(): cv.use_id(DFPlayer),
-        }
-    ),
-    synchronous=True,
-)
-async def dfplayer_previous_to_code(config, action_id, template_arg, args):
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
-    return var
-
-
-@automation.register_action(
+automation.register_apply_action(
     "dfplayer.play_mp3",
-    PlayMp3Action,
     cv.maybe_simple_value(
         {
             cv.GenerateID(): cv.use_id(DFPlayer),
@@ -126,70 +101,43 @@ async def dfplayer_previous_to_code(config, action_id, template_arg, args):
         },
         key=CONF_FILE,
     ),
-    synchronous=True,
+    automation.ApplyField(CONF_FILE, "play_mp3", cg.uint16),
 )
-async def dfplayer_play_mp3_to_code(config, action_id, template_arg, args):
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
-    template_ = await cg.templatable(config[CONF_FILE], args, cg.uint16)
-    cg.add(var.set_file(template_))
-    return var
 
-
-@automation.register_action(
+# loop and file default to what the old action's unset templatable values evaluated to
+automation.register_apply_action(
     "dfplayer.play",
-    PlayFileAction,
     cv.maybe_simple_value(
         {
             cv.GenerateID(): cv.use_id(DFPlayer),
             cv.Required(CONF_FILE): cv.templatable(cv.int_),
-            cv.Optional(CONF_LOOP): cv.templatable(cv.boolean),
+            cv.Optional(CONF_LOOP, default=False): cv.templatable(cv.boolean),
         },
         key=CONF_FILE,
     ),
-    synchronous=True,
+    automation.ApplyCall(
+        "play_file({}, {})", ((CONF_FILE, cg.uint16), (CONF_LOOP, cg.bool_))
+    ),
 )
-async def dfplayer_play_to_code(config, action_id, template_arg, args):
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
-    template_ = await cg.templatable(config[CONF_FILE], args, cg.uint16)
-    cg.add(var.set_file(template_))
-    if CONF_LOOP in config:
-        template_ = await cg.templatable(config[CONF_LOOP], args, cg.bool_)
-        cg.add(var.set_loop(template_))
-    return var
 
-
-@automation.register_action(
+automation.register_apply_action(
     "dfplayer.play_folder",
-    PlayFolderAction,
     cv.Schema(
         {
             cv.GenerateID(): cv.use_id(DFPlayer),
             cv.Required(CONF_FOLDER): cv.templatable(cv.int_),
-            cv.Optional(CONF_FILE): cv.templatable(cv.int_),
-            cv.Optional(CONF_LOOP): cv.templatable(cv.boolean),
+            cv.Optional(CONF_FILE, default=0): cv.templatable(cv.int_),
+            cv.Optional(CONF_LOOP, default=False): cv.templatable(cv.boolean),
         }
     ),
-    synchronous=True,
+    automation.ApplyCall(
+        "play_folder({}, {}, {})",
+        ((CONF_FOLDER, cg.uint16), (CONF_FILE, cg.uint16), (CONF_LOOP, cg.bool_)),
+    ),
 )
-async def dfplayer_play_folder_to_code(config, action_id, template_arg, args):
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
-    template_ = await cg.templatable(config[CONF_FOLDER], args, cg.uint16)
-    cg.add(var.set_folder(template_))
-    if CONF_FILE in config:
-        template_ = await cg.templatable(config[CONF_FILE], args, cg.uint16)
-        cg.add(var.set_file(template_))
-    if CONF_LOOP in config:
-        template_ = await cg.templatable(config[CONF_LOOP], args, cg.bool_)
-        cg.add(var.set_loop(template_))
-    return var
 
-
-@automation.register_action(
+automation.register_apply_action(
     "dfplayer.set_device",
-    SetDeviceAction,
     cv.maybe_simple_value(
         {
             cv.GenerateID(): cv.use_id(DFPlayer),
@@ -197,19 +145,11 @@ async def dfplayer_play_folder_to_code(config, action_id, template_arg, args):
         },
         key=CONF_DEVICE,
     ),
-    synchronous=True,
+    automation.ApplyField(CONF_DEVICE, "set_device", Device),
 )
-async def dfplayer_set_device_to_code(config, action_id, template_arg, args):
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
-    template_ = await cg.templatable(config[CONF_DEVICE], args, Device)
-    cg.add(var.set_device(template_))
-    return var
 
-
-@automation.register_action(
+automation.register_apply_action(
     "dfplayer.set_volume",
-    SetVolumeAction,
     cv.maybe_simple_value(
         {
             cv.GenerateID(): cv.use_id(DFPlayer),
@@ -217,51 +157,11 @@ async def dfplayer_set_device_to_code(config, action_id, template_arg, args):
         },
         key=CONF_VOLUME,
     ),
-    synchronous=True,
+    automation.ApplyField(CONF_VOLUME, "set_volume", cg.uint8),
 )
-async def dfplayer_set_volume_to_code(config, action_id, template_arg, args):
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
-    template_ = await cg.templatable(config[CONF_VOLUME], args, cg.uint8)
-    cg.add(var.set_volume(template_))
-    return var
 
-
-@automation.register_action(
-    "dfplayer.volume_up",
-    VolumeUpAction,
-    cv.Schema(
-        {
-            cv.GenerateID(): cv.use_id(DFPlayer),
-        }
-    ),
-    synchronous=True,
-)
-async def dfplayer_volume_up_to_code(config, action_id, template_arg, args):
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
-    return var
-
-
-@automation.register_action(
-    "dfplayer.volume_down",
-    VolumeDownAction,
-    cv.Schema(
-        {
-            cv.GenerateID(): cv.use_id(DFPlayer),
-        }
-    ),
-    synchronous=True,
-)
-async def dfplayer_volume_down_to_code(config, action_id, template_arg, args):
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
-    return var
-
-
-@automation.register_action(
+automation.register_apply_action(
     "dfplayer.set_eq",
-    SetEqAction,
     cv.maybe_simple_value(
         {
             cv.GenerateID(): cv.use_id(DFPlayer),
@@ -269,110 +169,34 @@ async def dfplayer_volume_down_to_code(config, action_id, template_arg, args):
         },
         key=CONF_EQ_PRESET,
     ),
-    synchronous=True,
+    automation.ApplyField(CONF_EQ_PRESET, "set_eq", EqPreset),
 )
-async def dfplayer_set_eq_to_code(config, action_id, template_arg, args):
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
-    template_ = await cg.templatable(config[CONF_EQ_PRESET], args, EqPreset)
-    cg.add(var.set_eq(template_))
-    return var
 
 
-@automation.register_action(
-    "dfplayer.sleep",
-    SleepAction,
-    cv.Schema(
-        {
-            cv.GenerateID(): cv.use_id(DFPlayer),
-        }
+def _default_enable(value: Any) -> Any:
+    """Fill in ``enable: true`` for a bare action or a mapping that only picks the player.
+
+    Done before ``maybe_simple_value`` so neither form is wrapped as the ``enable`` value.
+    """
+    if value is None or isinstance(value, dict):
+        return {CONF_ENABLE: True, **(value or {})}
+    return value
+
+
+automation.register_apply_action(
+    "dfplayer.set_current_track_repeat",
+    cv.All(
+        _default_enable,
+        cv.maybe_simple_value(
+            {
+                cv.GenerateID(): cv.use_id(DFPlayer),
+                cv.Optional(CONF_ENABLE, default=True): cv.templatable(cv.boolean),
+            },
+            key=CONF_ENABLE,
+        ),
     ),
-    synchronous=True,
+    automation.ApplyField(CONF_ENABLE, "set_current_track_repeat", cg.bool_),
 )
-async def dfplayer_sleep_to_code(config, action_id, template_arg, args):
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
-    return var
-
-
-@automation.register_action(
-    "dfplayer.reset",
-    ResetAction,
-    cv.Schema(
-        {
-            cv.GenerateID(): cv.use_id(DFPlayer),
-        }
-    ),
-    synchronous=True,
-)
-async def dfplayer_reset_to_code(config, action_id, template_arg, args):
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
-    return var
-
-
-@automation.register_action(
-    "dfplayer.start",
-    StartAction,
-    cv.Schema(
-        {
-            cv.GenerateID(): cv.use_id(DFPlayer),
-        }
-    ),
-    synchronous=True,
-)
-async def dfplayer_start_to_code(config, action_id, template_arg, args):
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
-    return var
-
-
-@automation.register_action(
-    "dfplayer.pause",
-    PauseAction,
-    cv.Schema(
-        {
-            cv.GenerateID(): cv.use_id(DFPlayer),
-        }
-    ),
-    synchronous=True,
-)
-async def dfplayer_pause_to_code(config, action_id, template_arg, args):
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
-    return var
-
-
-@automation.register_action(
-    "dfplayer.stop",
-    StopAction,
-    cv.Schema(
-        {
-            cv.GenerateID(): cv.use_id(DFPlayer),
-        }
-    ),
-    synchronous=True,
-)
-async def dfplayer_stop_to_code(config, action_id, template_arg, args):
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
-    return var
-
-
-@automation.register_action(
-    "dfplayer.random",
-    RandomAction,
-    cv.Schema(
-        {
-            cv.GenerateID(): cv.use_id(DFPlayer),
-        }
-    ),
-    synchronous=True,
-)
-async def dfplayer_random_to_code(config, action_id, template_arg, args):
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
-    return var
 
 
 @automation.register_condition(

esphome/components/dfplayer/dfplayer.cpp

@@ -102,6 +102,13 @@ void DFPlayer::random() {
   this->send_cmd_(0x18);
 }
 
+void DFPlayer::set_current_track_repeat(bool enable) {
+  uint16_t arg = enable ? 0x00 : 0x01;
+  ESP_LOGD(TAG, "Setting current track repeat to %s",
+           enable ? LOG_STR_LITERAL("enabled") : LOG_STR_LITERAL("disabled"));
+  this->send_cmd_(0x19, arg);
+}
+
 void DFPlayer::play_folder(uint16_t folder, uint16_t file) {
   ESP_LOGD(TAG, "Playing file %d in folder %d", file, folder);
   if (folder < 100 && file < 256) {

esphome/components/dfplayer/dfplayer.h

@@ -33,8 +33,13 @@ class DFPlayer final : public uart::UARTDevice, public Component {
   void play_mp3(uint16_t file);
   void play_file(uint16_t file);
   void play_file_loop(uint16_t file);
+  void play_file(uint16_t file, bool loop) { loop ? this->play_file_loop(file) : this->play_file(file); }
   void play_folder(uint16_t folder, uint16_t file);
   void play_folder_loop(uint16_t folder);
+  // The loop command plays the whole folder, so file is ignored when loop is set.
+  void play_folder(uint16_t folder, uint16_t file, bool loop) {
+    loop ? this->play_folder_loop(folder) : this->play_folder(folder, file);
+  }
   void volume_up();
   void volume_down();
   void set_device(Device device);
@@ -46,6 +51,7 @@ class DFPlayer final : public uart::UARTDevice, public Component {
   void pause();
   void stop();
   void random();
+  void set_current_track_repeat(bool enable);
 
   bool is_playing() { return is_playing_; }
   void dump_config() override;
@@ -71,100 +77,6 @@ class DFPlayer final : public uart::UARTDevice, public Component {
   CallbackManager<void()> on_finished_playback_callback_;
 };
 
-#define DFPLAYER_SIMPLE_ACTION(ACTION_CLASS, ACTION_METHOD) \
-  template<typename... Ts> \
-  class ACTION_CLASS : /* NOLINT */ \
-                       public Action<Ts...>, \
-                       public Parented<DFPlayer> { \
-    void play(const Ts &...x) override { this->parent_->ACTION_METHOD(); } \
-  };
-
-DFPLAYER_SIMPLE_ACTION(NextAction, next)
-DFPLAYER_SIMPLE_ACTION(PreviousAction, previous)
-
-template<typename... Ts> class PlayMp3Action final : public Action<Ts...>, public Parented<DFPlayer> {
- public:
-  TEMPLATABLE_VALUE(uint16_t, file)
-
-  void play(const Ts &...x) override {
-    auto file = this->file_.value(x...);
-    this->parent_->play_mp3(file);
-  }
-};
-
-template<typename... Ts> class PlayFileAction final : public Action<Ts...>, public Parented<DFPlayer> {
- public:
-  TEMPLATABLE_VALUE(uint16_t, file)
-  TEMPLATABLE_VALUE(bool, loop)
-
-  void play(const Ts &...x) override {
-    auto file = this->file_.value(x...);
-    auto loop = this->loop_.value(x...);
-    if (loop) {
-      this->parent_->play_file_loop(file);
-    } else {
-      this->parent_->play_file(file);
-    }
-  }
-};
-
-template<typename... Ts> class PlayFolderAction final : public Action<Ts...>, public Parented<DFPlayer> {
- public:
-  TEMPLATABLE_VALUE(uint16_t, folder)
-  TEMPLATABLE_VALUE(uint16_t, file)
-  TEMPLATABLE_VALUE(bool, loop)
-
-  void play(const Ts &...x) override {
-    auto folder = this->folder_.value(x...);
-    auto file = this->file_.value(x...);
-    auto loop = this->loop_.value(x...);
-    if (loop) {
-      this->parent_->play_folder_loop(folder);
-    } else {
-      this->parent_->play_folder(folder, file);
-    }
-  }
-};
-
-template<typename... Ts> class SetDeviceAction final : public Action<Ts...>, public Parented<DFPlayer> {
- public:
-  TEMPLATABLE_VALUE(Device, device)
-
-  void play(const Ts &...x) override {
-    auto device = this->device_.value(x...);
-    this->parent_->set_device(device);
-  }
-};
-
-template<typename... Ts> class SetVolumeAction final : public Action<Ts...>, public Parented<DFPlayer> {
- public:
-  TEMPLATABLE_VALUE(uint8_t, volume)
-
-  void play(const Ts &...x) override {
-    auto volume = this->volume_.value(x...);
-    this->parent_->set_volume(volume);
-  }
-};
-
-template<typename... Ts> class SetEqAction final : public Action<Ts...>, public Parented<DFPlayer> {
- public:
-  TEMPLATABLE_VALUE(EqPreset, eq)
-
-  void play(const Ts &...x) override {
-    auto eq = this->eq_.value(x...);
-    this->parent_->set_eq(eq);
-  }
-};
-
-DFPLAYER_SIMPLE_ACTION(SleepAction, sleep)
-DFPLAYER_SIMPLE_ACTION(ResetAction, reset)
-DFPLAYER_SIMPLE_ACTION(StartAction, start)
-DFPLAYER_SIMPLE_ACTION(PauseAction, pause)
-DFPLAYER_SIMPLE_ACTION(StopAction, stop)
-DFPLAYER_SIMPLE_ACTION(RandomAction, random)
-DFPLAYER_SIMPLE_ACTION(VolumeUpAction, volume_up)
-DFPLAYER_SIMPLE_ACTION(VolumeDownAction, volume_down)
-
 template<typename... Ts> class DFPlayerIsPlayingCondition final : public Condition<Ts...>, public Parented<DFPlayer> {
  public:
   bool check(const Ts &...x) override { return this->parent_->is_playing(); }

esphome/components/display/__init__.py

@@ -39,12 +39,6 @@ DisplayPage = display_ns.class_("DisplayPage")
 DisplayPagePtr = DisplayPage.operator("ptr")
 DisplayRef = Display.operator("ref")
 DisplayPageShowAction = display_ns.class_("DisplayPageShowAction", automation.Action)
-DisplayPageShowNextAction = display_ns.class_(
-    "DisplayPageShowNextAction", automation.Action
-)
-DisplayPageShowPrevAction = display_ns.class_(
-    "DisplayPageShowPrevAction", automation.Action
-)
 DisplayIsDisplayingPageCondition = display_ns.class_(
     "DisplayIsDisplayingPageCondition", automation.Condition
 )
@@ -288,34 +282,23 @@ async def display_page_show_to_code(config, action_id, template_arg, args):
     return var
 
 
-@automation.register_action(
+# The id is the display itself, so it cannot be a lambda; a plain use_id rejects one clearly.
+DISPLAY_PAGE_CYCLE_ACTION_SCHEMA = maybe_simple_id(
+    {
+        cv.GenerateID(CONF_ID): cv.use_id(Display),
+    }
+)
+
+automation.register_apply_action(
     "display.page.show_next",
-    DisplayPageShowNextAction,
-    maybe_simple_id(
-        {
-            cv.GenerateID(CONF_ID): cv.templatable(cv.use_id(Display)),
-        }
-    ),
-    synchronous=True,
+    DISPLAY_PAGE_CYCLE_ACTION_SCHEMA,
+    automation.ApplyCall("show_next_page()"),
 )
-async def display_page_show_next_to_code(config, action_id, template_arg, args):
-    paren = await cg.get_variable(config[CONF_ID])
-    return cg.new_Pvariable(action_id, template_arg, paren)
-
-
-@automation.register_action(
+automation.register_apply_action(
     "display.page.show_previous",
-    DisplayPageShowPrevAction,
-    maybe_simple_id(
-        {
-            cv.GenerateID(CONF_ID): cv.templatable(cv.use_id(Display)),
-        }
-    ),
-    synchronous=True,
+    DISPLAY_PAGE_CYCLE_ACTION_SCHEMA,
+    automation.ApplyCall("show_prev_page()"),
 )
-async def display_page_show_previous_to_code(config, action_id, template_arg, args):
-    paren = await cg.get_variable(config[CONF_ID])
-    return cg.new_Pvariable(action_id, template_arg, paren)
 
 
 @automation.register_condition(

esphome/components/display/display.h

@@ -848,24 +848,6 @@ template<typename... Ts> class DisplayPageShowAction final : public Action<Ts...
   }
 };
 
-template<typename... Ts> class DisplayPageShowNextAction final : public Action<Ts...> {
- public:
-  DisplayPageShowNextAction(Display *buffer) : buffer_(buffer) {}
-
-  void play(const Ts &...x) override { this->buffer_->show_next_page(); }
-
-  Display *buffer_;
-};
-
-template<typename... Ts> class DisplayPageShowPrevAction final : public Action<Ts...> {
- public:
-  DisplayPageShowPrevAction(Display *buffer) : buffer_(buffer) {}
-
-  void play(const Ts &...x) override { this->buffer_->show_prev_page(); }
-
-  Display *buffer_;
-};
-
 template<typename... Ts> class DisplayIsDisplayingPageCondition final : public Condition<Ts...> {
  public:
   DisplayIsDisplayingPageCondition(Display *parent) : parent_(parent) {}

esphome/components/esp32/__init__.py

@@ -424,6 +424,7 @@ ARDUINO_DISABLED_LIBRARIES: frozenset[str] = frozenset(
         "Hash",
         "HTTPClient",
         "HTTPUpdate",
+        "HTTPUpdateServer",
         "Insights",
         "LittleFS",
         "Matter",
@@ -931,14 +932,15 @@ def _is_framework_url(source: str) -> bool:
 # The default/recommended arduino framework version
 #  - https://github.com/espressif/arduino-esp32/releases
 ARDUINO_FRAMEWORK_VERSION_LOOKUP = {
-    "recommended": cv.Version(3, 3, 11),
-    "latest": cv.Version(3, 3, 11),
-    "dev": cv.Version(3, 3, 11),
+    "recommended": cv.Version(3, 3, 12),
+    "latest": cv.Version(3, 3, 12),
+    "dev": cv.Version(3, 3, 12),
 }
 ARDUINO_PLATFORM_VERSION_LOOKUP = {
     cv.Version(
         4, 0, 0, "alpha1"
     ): "https://github.com/pioarduino/platform-espressif32.git#prep_IDF6",
+    cv.Version(3, 3, 12): cv.Version(55, 3, 312),
     cv.Version(3, 3, 11): cv.Version(55, 3, 311),
     cv.Version(3, 3, 10): cv.Version(55, 3, 39),
     cv.Version(3, 3, 9): cv.Version(55, 3, 39),
@@ -963,6 +965,7 @@ ARDUINO_PLATFORM_VERSION_LOOKUP = {
 # See: https://github.com/pioarduino/esp-idf/releases
 ARDUINO_IDF_VERSION_LOOKUP = {
     cv.Version(4, 0, 0, "alpha1"): cv.Version(6, 0, 1),
+    cv.Version(3, 3, 12): cv.Version(5, 5, 5),
     cv.Version(3, 3, 11): cv.Version(5, 5, 5),
     cv.Version(3, 3, 10): cv.Version(5, 5, 5),
     cv.Version(3, 3, 9): cv.Version(5, 5, 4),
@@ -998,7 +1001,7 @@ ESP_IDF_PLATFORM_VERSION_LOOKUP = {
     cv.Version(
         6, 0, 0
     ): "https://github.com/pioarduino/platform-espressif32.git#prep_IDF6",
-    cv.Version(5, 5, 5): cv.Version(55, 3, 311),
+    cv.Version(5, 5, 5): cv.Version(55, 3, 312),
     cv.Version(5, 5, 4): cv.Version(55, 3, 39),
     cv.Version(5, 5, 3, "1"): cv.Version(55, 3, 37),
     cv.Version(5, 5, 3): cv.Version(55, 3, 37),
@@ -1019,8 +1022,8 @@ ESP_IDF_PLATFORM_VERSION_LOOKUP = {
 # The platform-espressif32 version
 #  - https://github.com/pioarduino/platform-espressif32/releases
 PLATFORM_VERSION_LOOKUP = {
-    "recommended": cv.Version(55, 3, 311),
-    "latest": cv.Version(55, 3, 311),
+    "recommended": cv.Version(55, 3, 312),
+    "latest": cv.Version(55, 3, 312),
     "dev": "https://github.com/pioarduino/platform-espressif32.git#develop",
 }
 
@@ -2792,6 +2795,11 @@ async def to_code(config):
             config.get(CONF_ENGINEERING_SAMPLE, False),
         )
 
+    # ESP32-C2 defaults to the ROM's newlib "nano" printf, which does not
+    # understand %zu or %lld and crashes on any %s that follows one.
+    if variant == VARIANT_ESP32C2:
+        add_idf_sdkconfig_option("CONFIG_LIBC_NEWLIB_NANO_FORMAT", False)
+
     # Set minimum chip revision for ESP32 variant
     # Setting this to 3.0 or higher reduces flash size by excluding workaround code,
     # and for PSRAM users saves significant IRAM by keeping C library functions in ROM.

esphome/components/esp32_ble_server/__init__.py

@@ -3,7 +3,7 @@ import encodings
 from esphome import automation
 import esphome.codegen as cg
 from esphome.components import esp32_ble
-from esphome.components.const import CONF_MANUFACTURER
+from esphome.components.const import CONF_DESCRIPTION, CONF_MANUFACTURER
 from esphome.components.esp32 import request_bluetooth
 from esphome.components.esp32_ble import BTLoggers, bt_uuid
 import esphome.config_validation as cv
@@ -37,7 +37,6 @@ CONF_ADVERTISE = "advertise"
 CONF_APPEARANCE = "appearance"
 CONF_BROADCAST = "broadcast"
 CONF_CHARACTERISTICS = "characteristics"
-CONF_DESCRIPTION = "description"
 CONF_DESCRIPTORS = "descriptors"
 CONF_ENDIANNESS = "endianness"
 CONF_FIRMWARE_VERSION = "firmware_version"

esphome/components/esp32_ble_tracker/__init__.py

@@ -39,8 +39,7 @@ from esphome.const import (
     CONF_SERVICE_UUID,
     CONF_TRIGGER_ID,
 )
-from esphome.core import CORE, ID, CoroPriority, TimePeriod, coroutine_with_priority
-from esphome.cpp_generator import MockObj, TemplateArgsType
+from esphome.core import CORE, CoroPriority, TimePeriod, coroutine_with_priority
 from esphome.enum import StrEnum
 from esphome.types import ConfigType
 
@@ -116,12 +115,6 @@ BLEEndOfScanTrigger = esp32_ble_tracker_ns.class_(
     "BLEEndOfScanTrigger", automation.Trigger.template()
 )
 # Actions
-ESP32BLEStartScanAction = esp32_ble_tracker_ns.class_(
-    "ESP32BLEStartScanAction", automation.Action
-)
-ESP32BLEStopScanAction = esp32_ble_tracker_ns.class_(
-    "ESP32BLEStopScanAction", automation.Action
-)
 
 
 def validate_max_connections_deprecated(config: ConfigType) -> ConfigType:
@@ -469,23 +462,12 @@ ESP32_BLE_START_SCAN_ACTION_SCHEMA = cv.Schema(
 )
 
 
-@automation.register_action(
+automation.register_apply_action(
     "esp32_ble_tracker.start_scan",
-    ESP32BLEStartScanAction,
     ESP32_BLE_START_SCAN_ACTION_SCHEMA,
-    synchronous=True,
+    automation.ApplyField(CONF_CONTINUOUS, "set_scan_continuous", cg.bool_),
+    automation.ApplyCall("start_scan_if_idle()"),
 )
-async def esp32_ble_tracker_start_scan_action_to_code(
-    config: ConfigType,
-    action_id: ID,
-    template_arg: cg.TemplateArguments,
-    args: TemplateArgsType,
-) -> MockObj:
-    paren = await cg.get_variable(config[CONF_ID])
-    var = cg.new_Pvariable(action_id, template_arg, paren)
-    template_ = await cg.templatable(config[CONF_CONTINUOUS], args, cg.bool_)
-    cg.add(var.set_continuous(template_))
-    return var
 
 
 ESP32_BLE_STOP_SCAN_ACTION_SCHEMA = automation.maybe_simple_id(
@@ -497,21 +479,11 @@ ESP32_BLE_STOP_SCAN_ACTION_SCHEMA = automation.maybe_simple_id(
 )
 
 
-@automation.register_action(
+automation.register_apply_action(
     "esp32_ble_tracker.stop_scan",
-    ESP32BLEStopScanAction,
     ESP32_BLE_STOP_SCAN_ACTION_SCHEMA,
-    synchronous=True,
+    automation.ApplyCall("stop_scan()"),
 )
-async def esp32_ble_tracker_stop_scan_action_to_code(
-    config: ConfigType,
-    action_id: ID,
-    template_arg: cg.TemplateArguments,
-    args: TemplateArgsType,
-) -> MockObj:
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
-    return var
 
 
 async def register_ble_device(

esphome/components/esp32_ble_tracker/automation.h

@@ -94,30 +94,6 @@ class BLEEndOfScanTrigger final : public Trigger<>, public ESPBTDeviceListener {
   void on_scan_end() override { this->trigger(); }
 };
 
-template<typename... Ts> class ESP32BLEStartScanAction final : public Action<Ts...> {
- public:
-  ESP32BLEStartScanAction(ESP32BLETracker *parent) : parent_(parent) {}
-  TEMPLATABLE_VALUE(bool, continuous)
-  void play(const Ts &...x) override {
-    this->parent_->set_scan_continuous(this->continuous_.value(x...));
-    // Only call start_scan() if scanner is IDLE
-    // For other states (STARTING, RUNNING, STOPPING, FAILED), the normal state
-    // machine flow will eventually transition back to IDLE, at which point
-    // loop() will see scan_continuous_ and restart scanning if it is true.
-    if (this->parent_->get_scanner_state() == ScannerState::IDLE) {
-      this->parent_->start_scan();
-    }
-  }
-
- protected:
-  ESP32BLETracker *parent_;
-};
-
-template<typename... Ts> class ESP32BLEStopScanAction final : public Action<Ts...>, public Parented<ESP32BLETracker> {
- public:
-  void play(const Ts &...x) override { this->parent_->stop_scan(); }
-};
-
 }  // namespace esphome::esp32_ble_tracker
 
 #endif

esphome/components/esp32_ble_tracker/esp32_ble_tracker.h

@@ -218,6 +218,12 @@ class ESP32BLETracker final : public Component,
 #endif
 
   void start_scan();
+  // For the start_scan action: in any other state the state machine returns to IDLE on its own
+  // and loop() restarts scanning when scan_continuous_ is set, so only an idle scanner starts here.
+  void start_scan_if_idle() {
+    if (this->scanner_state_ == ScannerState::IDLE)
+      this->start_scan();
+  }
   void stop_scan();
 
   void gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param);

esphome/components/esp32_hosted/__init__.py

@@ -313,7 +313,7 @@ async def to_code(config: ConfigType) -> None:
     esp32.add_idf_component(name="espressif/esp_wifi_remote", ref="1.6.3")
     esp32.add_idf_component(name="espressif/wifi_remote_over_eppp", ref="0.3.3")
     esp32.add_idf_component(name="espressif/eppp_link", ref="1.1.5")
-    esp32.add_idf_component(name="espressif/esp_hosted", ref="2.12.12")
+    esp32.add_idf_component(name="espressif/esp_hosted", ref="2.12.13")
     esp32.add_extra_script(
         "post",
         "esp32_hosted.py",

esphome/components/esp8266/__init__.py

@@ -37,6 +37,7 @@ from esphome.types import ConfigType
 
 from .boards import BOARDS, board_ld_script
 from .const import (
+    BUILD_FLASH_MODES,
     CONF_EARLY_PIN_INIT,
     CONF_ENABLE_SERIAL,
     CONF_ENABLE_SERIAL1,
@@ -44,6 +45,7 @@ from .const import (
     KEY_BOARD,
     KEY_ESP8266,
     KEY_PIN_INITIAL_STATES,
+    KEY_SCANF_FLOAT,
     KEY_SERIAL1_REQUIRED,
     KEY_SERIAL_REQUIRED,
     KEY_WAVEFORM_REQUIRED,
@@ -233,7 +235,6 @@ ARDUINO_FRAMEWORK_SCHEMA = cv.All(
 )
 
 
-BUILD_FLASH_MODES = ["qio", "qout", "dio", "dout"]
 CONFIG_SCHEMA = cv.All(
     cv.Schema(
         {
@@ -315,6 +316,9 @@ async def to_code(config: ConfigType) -> None:
             "enabling scanf float support (~8KB flash)"
         )
 
+    # The native generator reads the same decision (KEY_SCANF_FLOAT)
+    CORE.data[KEY_ESP8266][KEY_SCANF_FLOAT] = bool(enable_scanf_float)
+
     extra_scripts = [
         "pre:ccache.py",
         "pre:testing_mode.py",

esphome/components/esp8266/const.py

@@ -16,7 +16,6 @@ KEY_WAVEFORM_REQUIRED = "waveform_required"
 KEY_SERIAL_REQUIRED = "serial_required"
 KEY_SERIAL1_REQUIRED = "serial1_required"
 # Set for the native (non-PlatformIO) toolchain's build generator
-KEY_FLASH_MODE = "flash_mode"
 KEY_SCANF_FLOAT = "scanf_float"
 # Per-board flash-layout override consumed by board_ld_script()
 KEY_LDSCRIPT = "ldscript"
@@ -73,3 +72,6 @@ def enable_serial1() -> None:
             enable_serial1()
     """
     CORE.data.setdefault(KEY_ESP8266, {})[KEY_SERIAL1_REQUIRED] = True
+
+
+BUILD_FLASH_MODES = ("qio", "qout", "dio", "dout")

esphome/components/esp8266_pwm/esp8266_pwm.h

@@ -4,7 +4,6 @@
 
 #include "esphome/core/component.h"
 #include "esphome/core/hal.h"
-#include "esphome/core/automation.h"
 #include "esphome/components/output/float_output.h"
 
 namespace esphome::esp8266_pwm {
@@ -37,19 +36,6 @@ class ESP8266PWM final : public output::FloatOutput, public Component {
   float last_output_{0.0};
 };
 
-template<typename... Ts> class SetFrequencyAction final : public Action<Ts...> {
- public:
-  SetFrequencyAction(ESP8266PWM *parent) : parent_(parent) {}
-  TEMPLATABLE_VALUE(float, frequency);
-
-  void play(const Ts &...x) {
-    float freq = this->frequency_.value(x...);
-    this->parent_->update_frequency(freq);
-  }
-
-  ESP8266PWM *parent_;
-};
-
 }  // namespace esphome::esp8266_pwm
 
 #endif

esphome/components/esp8266_pwm/output.py

@@ -4,8 +4,6 @@ from esphome.components import output
 from esphome.components.esp8266.const import require_waveform
 import esphome.config_validation as cv
 from esphome.const import CONF_FREQUENCY, CONF_ID, CONF_NUMBER, CONF_PIN
-from esphome.core import ID
-from esphome.cpp_generator import MockObj, TemplateArgsType
 from esphome.types import ConfigType
 
 DEPENDENCIES = ["esp8266"]
@@ -19,7 +17,6 @@ def valid_pwm_pin(value: ConfigType) -> ConfigType:
 
 esp8266_pwm_ns = cg.esphome_ns.namespace("esp8266_pwm")
 ESP8266PWM = esp8266_pwm_ns.class_("ESP8266PWM", output.FloatOutput, cg.Component)
-SetFrequencyAction = esp8266_pwm_ns.class_("SetFrequencyAction", automation.Action)
 validate_frequency = cv.All(cv.frequency, cv.float_range(min=1.0e-6))
 
 # Schema default that also matches the C++ initializer in esp8266_pwm.h; codegen
@@ -57,25 +54,13 @@ async def to_code(config: ConfigType) -> None:
         cg.add(var.set_frequency(frequency))
 
 
-@automation.register_action(
+automation.register_apply_action(
     "output.esp8266_pwm.set_frequency",
-    SetFrequencyAction,
     cv.Schema(
         {
             cv.Required(CONF_ID): cv.use_id(ESP8266PWM),
             cv.Required(CONF_FREQUENCY): cv.templatable(validate_frequency),
         }
     ),
-    synchronous=True,
+    automation.ApplyField(CONF_FREQUENCY, "update_frequency", cg.float_),
 )
-async def esp8266_set_frequency_to_code(
-    config: ConfigType,
-    action_id: ID,
-    template_arg: cg.TemplateArguments,
-    args: TemplateArgsType,
-) -> MockObj:
-    paren = await cg.get_variable(config[CONF_ID])
-    var = cg.new_Pvariable(action_id, template_arg, paren)
-    template_ = await cg.templatable(config[CONF_FREQUENCY], args, cg.float_)
-    cg.add(var.set_frequency(template_))
-    return var

esphome/components/esphome/ota/ota_esphome.cpp

@@ -467,6 +467,8 @@ void ESPHomeOTAComponent::handle_data_() {
   if (this->extended_proto_()) {
     // Read ota type, 1 byte
     if (!this->data_readall_(buf, 1)) {
+      if (this->client_left_before_start_())
+        return;
       this->log_read_error_(LOG_STR("OTA type"));
       goto error;  // NOLINT(cppcoreguidelines-avoid-goto)
     }
@@ -476,6 +478,9 @@ void ESPHomeOTAComponent::handle_data_() {
 
   // Read size, 4 bytes MSB first
   if (!this->data_readall_(buf, 4)) {
+    // The first request byte is the type on the extended protocol; a close after it was a cut-off request
+    if (!this->extended_proto_() && this->client_left_before_start_())
+      return;
     this->log_read_error_(LOG_STR("size"));
     goto error;  // NOLINT(cppcoreguidelines-avoid-goto)
   }
@@ -542,6 +547,8 @@ void ESPHomeOTAComponent::handle_data_() {
       // there is no would-block retry here and failures are already logged.
       read = this->noise_read_data_(buf, requested);
       if (read <= 0) {
+        if (this->remote_closed_)
+          this->log_remote_closed_(LOG_STR("data"));
         error_code = ota::OTA_RESPONSE_ERROR_UNKNOWN;
         goto error;  // NOLINT(cppcoreguidelines-avoid-goto)
       }
@@ -666,7 +673,11 @@ bool ESPHomeOTAComponent::readall_(uint8_t *buf, size_t len) {
         return false;
       }
     } else if (read == 0) {
-      ESP_LOGW(TAG, "Remote closed");
+      // A partial message is a cut-off request, not a clean close; the caller reports the clean one
+      this->remote_closed_ = at == 0;
+      if (at > 0) {
+        ESP_LOGW(TAG, "Remote closed after %u of %zu bytes", (unsigned) at, len);
+      }
       return false;
     } else {
       at += read;
@@ -712,7 +723,22 @@ void ESPHomeOTAComponent::log_socket_error_(const LogString *msg) {
   ESP_LOGW(TAG, "Socket %s: errno %d", LOG_STR_ARG(msg), errno);
 }
 
-void ESPHomeOTAComponent::log_read_error_(const LogString *what) { ESP_LOGW(TAG, "Read %s failed", LOG_STR_ARG(what)); }
+bool ESPHomeOTAComponent::client_left_before_start_() {
+  // Key probes and scanners hang up right after the handshake; nothing started, so no error status or callback
+  if (!this->remote_closed_)
+    return false;
+  ESP_LOGD(TAG, "Client left after the handshake");
+  this->cleanup_connection_();
+  return true;
+}
+
+void ESPHomeOTAComponent::log_read_error_(const LogString *what) {
+  if (this->remote_closed_) {
+    this->log_remote_closed_(what);
+    return;
+  }
+  ESP_LOGW(TAG, "Read %s failed", LOG_STR_ARG(what));
+}
 
 void ESPHomeOTAComponent::log_start_(const LogString *phase) {
   char peername[socket::SOCKADDR_STR_LEN];
@@ -793,6 +819,7 @@ void ESPHomeOTAComponent::cleanup_connection_() {
   this->handshake_buf_pos_ = 0;
   this->ota_state_ = OTAState::IDLE;
   this->ota_features_ = 0;
+  this->remote_closed_ = false;
   this->backend_ = nullptr;
 #ifdef USE_OTA_PASSWORD
   this->cleanup_auth_();

esphome/components/esphome/ota/ota_esphome.h

@@ -134,6 +134,7 @@ class ESPHomeOTAComponent final : public ota::OTAComponent {
   void server_failed_(const LogString *msg);
   void log_socket_error_(const LogString *msg);
   void log_read_error_(const LogString *what);
+  bool client_left_before_start_();
   void log_start_(const LogString *phase);
   void log_remote_closed_(const LogString *during);
   void cleanup_connection_();
@@ -186,6 +187,7 @@ class ESPHomeOTAComponent final : public ota::OTAComponent {
   OTAState ota_state_{OTAState::IDLE};
   uint8_t handshake_buf_pos_{0};
   uint8_t ota_features_{0};
+  bool remote_closed_{false};  // the peer hung up cleanly during a blocking read
 #ifdef USE_OTA_PASSWORD
   uint8_t auth_buf_pos_{0};
   uint8_t auth_type_{0};  // Store auth type to know which hasher to use

esphome/components/espnow/__init__.py

@@ -39,9 +39,6 @@ ESPNowRecvInfo = espnow_ns.class_("ESPNowRecvInfo")
 ESPNowRecvInfoConstRef = ESPNowRecvInfo.operator("const").operator("ref")
 
 SendAction = espnow_ns.class_("SendAction", automation.Action)
-SetChannelAction = espnow_ns.class_("SetChannelAction", automation.Action)
-AddPeerAction = espnow_ns.class_("AddPeerAction", automation.Action)
-DeletePeerAction = espnow_ns.class_("DeletePeerAction", automation.Action)
 
 ESPNowHandlerTrigger = automation.Trigger.template(
     ESPNowRecvInfoConstRef,
@@ -232,12 +229,16 @@ def _validate_raw_data(value: Any) -> str | list:
     )
 
 
+def _mac_bytes(address: core.MACAddress) -> list[HexInt]:
+    return [HexInt(p) for p in address.parts]
+
+
 async def register_peer(
     var: MockObj, config: ConfigType, args: TemplateArgsType
 ) -> None:
     peer = config[CONF_ADDRESS]
     if isinstance(peer, core.MACAddress):
-        peer = [HexInt(p) for p in peer.parts]
+        peer = _mac_bytes(peer)
 
     template_ = await cg.templatable(peer, args, peer_address_t, peer_address_t)
     cg.add(var.set_address(template_))
@@ -323,40 +324,28 @@ async def send_action(
     return var
 
 
-@automation.register_action(
-    "espnow.peer.add",
-    AddPeerAction,
-    cv.maybe_simple_value(
-        PEER_SCHEMA,
-        key=CONF_ADDRESS,
-    ),
-    synchronous=True,
-)
-@automation.register_action(
-    "espnow.peer.delete",
-    DeletePeerAction,
-    cv.maybe_simple_value(
-        PEER_SCHEMA,
-        key=CONF_ADDRESS,
-    ),
-    synchronous=True,
-)
-async def peer_action(
-    config: ConfigType,
-    action_id: core.ID,
-    template_arg: cg.TemplateArguments,
-    args: list[tuple],
-) -> MockObj:
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
-    await register_peer(var, config, args)
-
-    return var
+def _peer_address(config: ConfigType, value: core.MACAddress) -> str:
+    return str(cg.safe_exp(_mac_bytes(value)))
 
 
-@automation.register_action(
+for _name, _method in (
+    ("espnow.peer.add", "add_peer_from_action"),
+    ("espnow.peer.delete", "del_peer_from_action"),
+):
+    automation.register_apply_action(
+        _name,
+        cv.maybe_simple_value(
+            PEER_SCHEMA,
+            key=CONF_ADDRESS,
+        ),
+        automation.ApplyField(
+            CONF_ADDRESS, _method, peer_address_t, const_fn=_peer_address
+        ),
+    )
+
+
+automation.register_apply_action(
     "espnow.set_channel",
-    SetChannelAction,
     cv.maybe_simple_value(
         {
             cv.GenerateID(): cv.use_id(ESPNowComponent),
@@ -364,16 +353,5 @@ async def peer_action(
         },
         key=CONF_CHANNEL,
     ),
-    synchronous=True,
+    automation.ApplyField(CONF_CHANNEL, "set_channel_from_action", cg.uint8),
 )
-async def channel_action(
-    config: ConfigType,
-    action_id: core.ID,
-    template_arg: cg.TemplateArguments,
-    args: list[tuple],
-) -> MockObj:
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
-    template_ = await cg.templatable(config[CONF_CHANNEL], args, cg.uint8)
-    cg.add(var.set_channel(template_))
-    return var

esphome/components/espnow/automation.h

@@ -86,39 +86,6 @@ template<typename... Ts> class SendAction final : public Action<Ts...>, public P
   } flags_{0};
 };
 
-template<typename... Ts> class AddPeerAction final : public Action<Ts...>, public Parented<ESPNowComponent> {
-  TEMPLATABLE_VALUE(peer_address_t, address);
-
- protected:
-  void play(const Ts &...x) override {
-    peer_address_t address = this->address_.value(x...);
-    this->parent_->add_peer(address.data());
-  }
-};
-
-template<typename... Ts> class DeletePeerAction final : public Action<Ts...>, public Parented<ESPNowComponent> {
-  TEMPLATABLE_VALUE(peer_address_t, address);
-
- protected:
-  void play(const Ts &...x) override {
-    peer_address_t address = this->address_.value(x...);
-    this->parent_->del_peer(address.data());
-  }
-};
-
-template<typename... Ts> class SetChannelAction final : public Action<Ts...>, public Parented<ESPNowComponent> {
-  TEMPLATABLE_VALUE(uint8_t, channel)
-
- protected:
-  void play(const Ts &...x) override {
-    if (this->parent_->is_wifi_enabled()) {
-      return;
-    }
-    this->parent_->set_wifi_channel(this->channel_.value(x...));
-    this->parent_->apply_wifi_channel();
-  }
-};
-
 class OnReceiveTrigger final : public Trigger<const ESPNowRecvInfo &, const uint8_t *, uint16_t>,
                                public ESPNowReceivedPacketHandler {
  public:

esphome/components/espnow/espnow_component.h

@@ -116,9 +116,18 @@ class ESPNowComponent final : public Component {
   esp_err_t add_peer(const uint8_t *peer);
   // Remove a peer with the esp_now api and remove from the internal list if exists
   esp_err_t del_peer(const uint8_t *peer);
+  // Action entry points; distinct names because add_peer(peer_address_t) only fills the boot-time list
+  esp_err_t add_peer_from_action(const peer_address_t &address) { return this->add_peer(address.data()); }
+  esp_err_t del_peer_from_action(const peer_address_t &address) { return this->del_peer(address.data()); }
 
   void set_wifi_channel(uint8_t channel) { this->wifi_channel_ = channel; }
   void apply_wifi_channel();
+  void set_channel_from_action(uint8_t channel) {
+    if (this->is_wifi_enabled())
+      return;
+    this->set_wifi_channel(channel);
+    this->apply_wifi_channel();
+  }
   uint8_t get_wifi_channel();
 
   void set_auto_add_peer(bool value) { this->auto_add_peer_ = value; }

esphome/components/event/__init__.py

@@ -16,14 +16,14 @@ from esphome.const import (
     DEVICE_CLASS_EMPTY,
     DEVICE_CLASS_MOTION,
 )
-from esphome.core import CORE, ID, CoroPriority, coroutine_with_priority
+from esphome.core import CORE, CoroPriority, coroutine_with_priority
 from esphome.core.entity_helpers import (
     entity_duplicate_validator,
     queue_entity_register,
     setup_device_class,
     setup_entity,
 )
-from esphome.cpp_generator import MockObj, MockObjClass, TemplateArgsType
+from esphome.cpp_generator import MockObj, MockObjClass
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@nohat"]
@@ -40,8 +40,6 @@ event_ns = cg.esphome_ns.namespace("event")
 Event = event_ns.class_("Event", cg.EntityBase)
 EventPtr = Event.operator("ptr")
 
-TriggerEventAction = event_ns.class_("TriggerEventAction", automation.Action)
-
 validate_device_class = cv.one_of(*DEVICE_CLASSES, lower=True, space="_")
 
 _EVENT_SCHEMA = (
@@ -135,20 +133,18 @@ TRIGGER_EVENT_SCHEMA = cv.Schema(
 )
 
 
-@automation.register_action(
-    "event.trigger", TriggerEventAction, TRIGGER_EVENT_SCHEMA, synchronous=True
+def _event_type_literal(config: ConfigType, value: str) -> str:
+    """A constant event type is a plain literal; trigger() only compares it, so no copy is needed."""
+    return str(cg.safe_exp(value))
+
+
+automation.register_apply_action(
+    "event.trigger",
+    TRIGGER_EVENT_SCHEMA,
+    automation.ApplyField(
+        CONF_EVENT_TYPE, "trigger", cg.std_string, _event_type_literal
+    ),
 )
-async def event_fire_to_code(
-    config: ConfigType,
-    action_id: ID,
-    template_arg: cg.TemplateArguments,
-    args: TemplateArgsType,
-) -> MockObj:
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
-    templ = await cg.templatable(config[CONF_EVENT_TYPE], args, cg.std_string)
-    cg.add(var.set_event_type(templ))
-    return var
 
 
 @coroutine_with_priority(CoroPriority.CORE)

esphome/components/event/automation.h

@@ -1,23 +0,0 @@
-#pragma once
-
-#include "esphome/components/event/event.h"
-#include "esphome/core/automation.h"
-#include "esphome/core/component.h"
-
-namespace esphome::event {
-
-template<typename... Ts> class TriggerEventAction final : public Action<Ts...>, public Parented<Event> {
- public:
-  TEMPLATABLE_VALUE(std::string, event_type)
-
-  void play(const Ts &...x) override { this->parent_->trigger(this->event_type_.value(x...)); }
-};
-
-class EventTrigger final : public Trigger<StringRef> {
- public:
-  EventTrigger(Event *event) {
-    event->add_on_event_callback([this](StringRef event_type) { this->trigger(event_type); });
-  }
-};
-
-}  // namespace esphome::event

esphome/components/event/event.cpp

@@ -7,17 +7,17 @@ namespace esphome::event {
 
 static const char *const TAG = "event";
 
-void Event::trigger(const std::string &event_type) {
+void Event::trigger(const char *event_type) {
   // Linear search with strcmp - faster than std::set for small datasets (1-5 items typical)
   const char *found = nullptr;
   for (const char *type : this->types_) {
-    if (strcmp(type, event_type.c_str()) == 0) {
+    if (strcmp(type, event_type) == 0) {
       found = type;
       break;
     }
   }
   if (found == nullptr) {
-    ESP_LOGE(TAG, "'%s': invalid event type for trigger(): %s", this->get_name().c_str(), event_type.c_str());
+    ESP_LOGE(TAG, "'%s': invalid event type for trigger(): %s", this->get_name().c_str(), event_type);
     return;
   }
   this->last_event_type_ = found;
@@ -36,12 +36,4 @@ void Event::set_event_types(const FixedVector<const char *> &event_types) {
   this->last_event_type_ = nullptr;  // Reset when types change
 }
 
-void Event::set_event_types(const std::vector<const char *> &event_types) {
-  this->types_.init(event_types.size());
-  for (const char *type : event_types) {
-    this->types_.push_back(type);
-  }
-  this->last_event_type_ = nullptr;  // Reset when types change
-}
-
 }  // namespace esphome::event

esphome/components/event/event.h

@@ -3,7 +3,6 @@
 #include <cstring>
 #include <limits>
 #include <string>
-#include <vector>
 
 #include "esphome/core/component.h"
 #include "esphome/core/entity_base.h"
@@ -21,22 +20,21 @@ namespace esphome::event {
 
 class Event : public EntityBase {
  public:
-  void trigger(const std::string &event_type);
+  /// Trigger an event; the type is matched against the configured types by string compare.
+  void trigger(const char *event_type);
+  void trigger(const std::string &event_type) { this->trigger(event_type.c_str()); }
 
-  /// Set the event types supported by this event (from initializer list).
+  /// Set the event types supported by this event; called by generated code with string literals.
   void set_event_types(std::initializer_list<const char *> event_types) {
     this->types_ = event_types;
     this->last_event_type_ = nullptr;  // Reset when types change
   }
-  /// Set the event types supported by this event (from FixedVector).
+  /// Copy the event types of another event, for components that wrap one.
   void set_event_types(const FixedVector<const char *> &event_types);
-  /// Set the event types supported by this event (from vector).
-  void set_event_types(const std::vector<const char *> &event_types);
 
   // Deleted overloads to catch incorrect std::string usage at compile time with clear error messages
   void set_event_types(std::initializer_list<std::string> event_types) = delete;
   void set_event_types(const FixedVector<std::string> &event_types) = delete;
-  void set_event_types(const std::vector<std::string> &event_types) = delete;
 
   /// Return the event types supported by this event.
   const FixedVector<const char *> &get_event_types() const { return this->types_; }

esphome/components/fan/__init__.py

@@ -31,19 +31,17 @@ from esphome.const import (
     CONF_TRIGGER_ID,
     CONF_WEB_SERVER,
 )
-from esphome.core import CORE, CoroPriority, Lambda, coroutine_with_priority
+from esphome.core import CORE, CoroPriority, coroutine_with_priority
 from esphome.core.entity_helpers import (
     entity_duplicate_validator,
     queue_entity_register,
     setup_entity,
 )
-from esphome.cpp_generator import LambdaExpression
 
 IS_PLATFORM_COMPONENT = True
 
 fan_ns = cg.esphome_ns.namespace("fan")
 Fan = fan_ns.class_("Fan", cg.EntityBase)
-FanCall = fan_ns.class_("FanCall")
 
 FanDirection = fan_ns.enum("FanDirection", is_class=True)
 FAN_DIRECTION_ENUM = {
@@ -63,7 +61,6 @@ RESTORE_MODES = {
 }
 
 # Actions
-TurnOnAction = fan_ns.class_("TurnOnAction", automation.Action)
 TurnOffAction = fan_ns.class_("TurnOffAction", automation.Action)
 ToggleAction = fan_ns.class_("ToggleAction", automation.Action)
 CycleSpeedAction = fan_ns.class_("CycleSpeedAction", automation.Action)
@@ -86,9 +83,6 @@ FanPresetSetTrigger = fan_ns.class_(
     "FanPresetSetTrigger", automation.Trigger.template(cg.StringRef)
 )
 
-FanIsOnCondition = fan_ns.class_("FanIsOnCondition", automation.Condition.template())
-FanIsOffCondition = fan_ns.class_("FanIsOffCondition", automation.Condition.template())
-
 _FAN_SCHEMA = (
     cv.ENTITY_BASE_SCHEMA.extend(web_server.WEBSERVER_SORTING_SCHEMA)
     .extend(cv.MQTT_COMMAND_COMPONENT_SCHEMA)
@@ -332,9 +326,8 @@ async def fan_turn_off_to_code(config, action_id, template_arg, args):
     return cg.new_Pvariable(action_id, template_arg, paren)
 
 
-@automation.register_action(
+automation.register_apply_action(
     "fan.turn_on",
-    TurnOnAction,
     maybe_simple_id(
         {
             cv.Required(CONF_ID): cv.use_id(Fan),
@@ -345,50 +338,11 @@ async def fan_turn_off_to_code(config, action_id, template_arg, args):
             ),
         }
     ),
-    synchronous=True,
+    automation.ApplyField(CONF_OSCILLATING, "set_oscillating", cg.bool_),
+    automation.ApplyField(CONF_SPEED, "set_speed", cg.int_),
+    automation.ApplyField(CONF_DIRECTION, "set_direction", FanDirection),
+    call="turn_on",
 )
-async def fan_turn_on_to_code(config, action_id, template_arg, args):
-    paren = await cg.get_variable(config[CONF_ID])
-
-    # All configured fields are folded into a single stateless lambda whose
-    # constants live in flash; the action stores only a function pointer.
-    FIELDS = (
-        (CONF_OSCILLATING, "set_oscillating", cg.bool_),
-        (CONF_SPEED, "set_speed", cg.int_),
-        (CONF_DIRECTION, "set_direction", FanDirection),
-    )
-
-    # Normalize trigger args to `const std::remove_cvref_t<T> &` so the
-    # apply lambda and any inner field lambdas (generated below via
-    # `process_lambda`) share one parameter spelling that's well-formed for
-    # any T (value, ref, or const-ref). Matches TurnOnAction::ApplyFn.
-    normalized_args = [
-        (cg.RawExpression(f"const std::remove_cvref_t<{cg.safe_exp(t)}> &"), n)
-        for t, n in args
-    ]
-
-    fwd_args = ", ".join(name for _, name in args)
-    body_lines: list[str] = []
-    for conf_key, setter, type_ in FIELDS:
-        if (value := config.get(conf_key)) is None:
-            continue
-        if isinstance(value, Lambda):
-            inner = await cg.process_lambda(value, normalized_args, return_type=type_)
-            body_lines.append(f"call.{setter}(({inner})({fwd_args}));")
-        else:
-            body_lines.append(f"call.{setter}({cg.safe_exp(value)});")
-
-    apply_args = [
-        (FanCall.operator("ref"), "call"),
-        *normalized_args,
-    ]
-    apply_lambda = LambdaExpression(
-        ["\n".join(body_lines)],
-        apply_args,
-        capture="",
-        return_type=cg.void,
-    )
-    return cg.new_Pvariable(action_id, template_arg, paren, apply_lambda)
 
 
 @automation.register_action(
@@ -410,27 +364,16 @@ async def fan_cycle_speed_to_code(config, action_id, template_arg, args):
     return var
 
 
-@automation.register_condition(
-    "fan.is_on",
-    FanIsOnCondition,
-    automation.maybe_simple_id(
-        {
-            cv.Required(CONF_ID): cv.use_id(Fan),
-        }
-    ),
+FAN_CONDITION_SCHEMA = automation.maybe_simple_id(
+    {
+        cv.Required(CONF_ID): cv.use_id(Fan),
+    }
 )
-@automation.register_condition(
-    "fan.is_off",
-    FanIsOffCondition,
-    automation.maybe_simple_id(
-        {
-            cv.Required(CONF_ID): cv.use_id(Fan),
-        }
-    ),
+
+automation.register_apply_condition("fan.is_on", FAN_CONDITION_SCHEMA, "state")
+automation.register_apply_condition(
+    "fan.is_off", FAN_CONDITION_SCHEMA, "state == false"
 )
-async def fan_is_on_off_to_code(config, condition_id, template_arg, args):
-    paren = await cg.get_variable(config[CONF_ID])
-    return cg.new_Pvariable(condition_id, template_arg, paren)
 
 
 @coroutine_with_priority(CoroPriority.CORE)

esphome/components/fan/automation.h

@@ -6,33 +6,6 @@
 
 namespace esphome::fan {
 
-// All configured fields are baked into a single stateless lambda whose
-// constants live in flash. The action only stores one function pointer
-// plus one parent pointer, regardless of how many fields the user set.
-// Trigger args are forwarded to the apply function so user lambdas
-// (e.g. `speed: !lambda "return x;"`) keep working.
-//
-// Trigger args are normalized to `const std::remove_cvref_t<Ts> &...` so
-// the codegen can emit a matching parameter list for both the apply lambda
-// and any inner field lambdas without producing invalid C++ source text
-// (e.g. `const T & &` if Ts already carries a reference, or `const const
-// T &` if Ts already carries a const). This keeps trigger args no-copy
-// regardless of whether the trigger supplies `T`, `T &`, or `const T &`.
-template<typename... Ts> class TurnOnAction final : public Action<Ts...> {
- public:
-  using ApplyFn = void (*)(FanCall &, const std::remove_cvref_t<Ts> &...);
-  TurnOnAction(Fan *state, ApplyFn apply) : state_(state), apply_(apply) {}
-
-  void play(const Ts &...x) override {
-    auto call = this->state_->turn_on();
-    this->apply_(call, x...);
-    call.perform();
-  }
-
-  Fan *state_;
-  ApplyFn apply_;
-};
-
 template<typename... Ts> class TurnOffAction final : public Action<Ts...> {
  public:
   explicit TurnOffAction(Fan *state) : state_(state) {}
@@ -95,23 +68,6 @@ template<typename... Ts> class CycleSpeedAction final : public Action<Ts...> {
   Fan *state_;
 };
 
-template<typename... Ts> class FanIsOnCondition final : public Condition<Ts...> {
- public:
-  explicit FanIsOnCondition(Fan *state) : state_(state) {}
-  bool check(const Ts &...x) override { return this->state_->state; }
-
- protected:
-  Fan *state_;
-};
-template<typename... Ts> class FanIsOffCondition final : public Condition<Ts...> {
- public:
-  explicit FanIsOffCondition(Fan *state) : state_(state) {}
-  bool check(const Ts &...x) override { return !this->state_->state; }
-
- protected:
-  Fan *state_;
-};
-
 class FanStateTrigger final : public Trigger<Fan *> {
  public:
   FanStateTrigger(Fan *state) : fan_(state) {

esphome/components/fujitsu_general/fujitsu_general.cpp

@@ -2,87 +2,78 @@
 
 namespace esphome::fujitsu_general {
 
-// bytes' bits are reversed for fujitsu, so nibbles are ordered 1, 0, 3, 2, 5, 4, etc...
-
-#define SET_NIBBLE(message, nibble, value) \
-  ((message)[(nibble) / 2] |= ((value) &0b00001111) << (((nibble) % 2) ? 0 : 4))
-#define GET_NIBBLE(message, nibble) (((message)[(nibble) / 2] >> (((nibble) % 2) ? 0 : 4)) & 0b00001111)
-
 static const char *const TAG = "fujitsu_general.climate";
 
 // Common header
-const uint8_t FUJITSU_GENERAL_COMMON_LENGTH = 6;
-const uint8_t FUJITSU_GENERAL_COMMON_BYTE0 = 0x14;
-const uint8_t FUJITSU_GENERAL_COMMON_BYTE1 = 0x63;
-const uint8_t FUJITSU_GENERAL_COMMON_BYTE2 = 0x00;
-const uint8_t FUJITSU_GENERAL_COMMON_BYTE3 = 0x10;
-const uint8_t FUJITSU_GENERAL_COMMON_BYTE4 = 0x10;
-const uint8_t FUJITSU_GENERAL_MESSAGE_TYPE_BYTE = 5;
+constexpr uint8_t FUJITSU_GENERAL_COMMON_LENGTH = 6;
+constexpr uint8_t FUJITSU_GENERAL_COMMON_BYTE0 = 0x14;
+constexpr uint8_t FUJITSU_GENERAL_COMMON_BYTE1 = 0x63;
+constexpr uint8_t FUJITSU_GENERAL_COMMON_BYTE2 = 0x00;
+constexpr uint8_t FUJITSU_GENERAL_COMMON_BYTE3 = 0x10;
+constexpr uint8_t FUJITSU_GENERAL_COMMON_BYTE4 = 0x10;
+constexpr uint8_t FUJITSU_GENERAL_MESSAGE_TYPE_BYTE = 5;
 
 // State message - temp & fan etc.
-const uint8_t FUJITSU_GENERAL_STATE_MESSAGE_LENGTH = 16;
-const uint8_t FUJITSU_GENERAL_MESSAGE_TYPE_STATE = 0xFE;
+constexpr uint8_t FUJITSU_GENERAL_STATE_MESSAGE_LENGTH = 16;
+constexpr uint8_t FUJITSU_GENERAL_MESSAGE_TYPE_STATE = 0xFE;
 
 // Util messages - off & eco etc.
-const uint8_t FUJITSU_GENERAL_UTIL_MESSAGE_LENGTH = 7;
-const uint8_t FUJITSU_GENERAL_MESSAGE_TYPE_OFF = 0x02;
-const uint8_t FUJITSU_GENERAL_MESSAGE_TYPE_ECONOMY = 0x09;
-const uint8_t FUJITSU_GENERAL_MESSAGE_TYPE_NUDGE = 0x6C;
+constexpr uint8_t FUJITSU_GENERAL_UTIL_MESSAGE_LENGTH = 7;
+constexpr uint8_t FUJITSU_GENERAL_MESSAGE_TYPE_OFF = 0x02;
+constexpr uint8_t FUJITSU_GENERAL_MESSAGE_TYPE_ECONOMY = 0x09;
+constexpr uint8_t FUJITSU_GENERAL_MESSAGE_TYPE_NUDGE = 0x6C;
 
 // State header
-const uint8_t FUJITSU_GENERAL_STATE_HEADER_BYTE0 = 0x09;
-const uint8_t FUJITSU_GENERAL_STATE_HEADER_BYTE1 = 0x30;
+constexpr uint8_t FUJITSU_GENERAL_STATE_HEADER_BYTE0 = 0x09;
+constexpr uint8_t FUJITSU_GENERAL_STATE_HEADER_BYTE1 = 0x30;
 
 // State footer
-const uint8_t FUJITSU_GENERAL_STATE_FOOTER_BYTE0 = 0x20;
-
-// Temperature
-const uint8_t FUJITSU_GENERAL_TEMPERATURE_NIBBLE = 16;
+constexpr uint8_t FUJITSU_GENERAL_STATE_FOOTER_BYTE0 = 0x20;
 
 // Power on
-const uint8_t FUJITSU_GENERAL_POWER_ON_NIBBLE = 17;
-const uint8_t FUJITSU_GENERAL_POWER_OFF = 0x00;
-const uint8_t FUJITSU_GENERAL_POWER_ON = 0x01;
+constexpr uint8_t FUJITSU_GENERAL_POWER_OFF = 0x00;
+constexpr uint8_t FUJITSU_GENERAL_POWER_ON = 0x01;
 
 // Mode
-const uint8_t FUJITSU_GENERAL_MODE_NIBBLE = 19;
-const uint8_t FUJITSU_GENERAL_MODE_AUTO = 0x00;
-const uint8_t FUJITSU_GENERAL_MODE_COOL = 0x01;
-const uint8_t FUJITSU_GENERAL_MODE_DRY = 0x02;
-const uint8_t FUJITSU_GENERAL_MODE_FAN = 0x03;
-const uint8_t FUJITSU_GENERAL_MODE_HEAT = 0x04;
-// const uint8_t FUJITSU_GENERAL_MODE_10C = 0x0B;
+// Bit 3 is the clean flag, which is also 10 degree heat on the ARRAH2E and ARREW4E remotes.
+constexpr uint8_t FUJITSU_GENERAL_MODE_MASK = 0b0111;
+constexpr uint8_t FUJITSU_GENERAL_CLEAN_BIT = 0b1000;
+constexpr uint8_t FUJITSU_GENERAL_MODE_AUTO = 0x00;
+constexpr uint8_t FUJITSU_GENERAL_MODE_COOL = 0x01;
+constexpr uint8_t FUJITSU_GENERAL_MODE_DRY = 0x02;
+constexpr uint8_t FUJITSU_GENERAL_MODE_FAN = 0x03;
+constexpr uint8_t FUJITSU_GENERAL_MODE_HEAT = 0x04;
 
 // Swing
-const uint8_t FUJITSU_GENERAL_SWING_NIBBLE = 20;
-const uint8_t FUJITSU_GENERAL_SWING_NONE = 0x00;
-const uint8_t FUJITSU_GENERAL_SWING_VERTICAL = 0x01;
-const uint8_t FUJITSU_GENERAL_SWING_HORIZONTAL = 0x02;
-const uint8_t FUJITSU_GENERAL_SWING_BOTH = 0x03;
+constexpr uint8_t FUJITSU_GENERAL_SWING_MASK = 0b0011;
+constexpr uint8_t FUJITSU_GENERAL_SWING_NONE = 0x00;
+constexpr uint8_t FUJITSU_GENERAL_SWING_VERTICAL = 0x01;
+constexpr uint8_t FUJITSU_GENERAL_SWING_HORIZONTAL = 0x02;
+constexpr uint8_t FUJITSU_GENERAL_SWING_BOTH = 0x03;
 
 // Fan
-const uint8_t FUJITSU_GENERAL_FAN_NIBBLE = 21;
-const uint8_t FUJITSU_GENERAL_FAN_AUTO = 0x00;
-const uint8_t FUJITSU_GENERAL_FAN_HIGH = 0x01;
-const uint8_t FUJITSU_GENERAL_FAN_MEDIUM = 0x02;
-const uint8_t FUJITSU_GENERAL_FAN_LOW = 0x03;
-const uint8_t FUJITSU_GENERAL_FAN_SILENT = 0x04;
+constexpr uint8_t FUJITSU_GENERAL_FAN_MASK = 0b0111;
+constexpr uint8_t FUJITSU_GENERAL_FAN_AUTO = 0x00;
+constexpr uint8_t FUJITSU_GENERAL_FAN_HIGH = 0x01;
+constexpr uint8_t FUJITSU_GENERAL_FAN_MEDIUM = 0x02;
+constexpr uint8_t FUJITSU_GENERAL_FAN_LOW = 0x03;
+constexpr uint8_t FUJITSU_GENERAL_FAN_SILENT = 0x04;
 
 // TODO Outdoor Unit Low Noise
 // const uint8_t FUJITSU_GENERAL_OUTDOOR_UNIT_LOW_NOISE_BYTE14 = 0xA0;
 // const uint8_t FUJITSU_GENERAL_STATE_BYTE14 = 0x20;
 
-const uint16_t FUJITSU_GENERAL_HEADER_MARK = 3300;
-const uint16_t FUJITSU_GENERAL_HEADER_SPACE = 1600;
+constexpr uint16_t FUJITSU_GENERAL_HEADER_MARK = 3300;
+constexpr uint16_t FUJITSU_GENERAL_HEADER_SPACE = 1600;
 
-const uint16_t FUJITSU_GENERAL_BIT_MARK = 420;
-const uint16_t FUJITSU_GENERAL_ONE_SPACE = 1200;
-const uint16_t FUJITSU_GENERAL_ZERO_SPACE = 420;
+constexpr uint16_t FUJITSU_GENERAL_BIT_MARK = 420;
+constexpr uint16_t FUJITSU_GENERAL_ONE_SPACE = 1200;
+constexpr uint16_t FUJITSU_GENERAL_ZERO_SPACE = 420;
 
-const uint16_t FUJITSU_GENERAL_TRL_MARK = 420;
-const uint16_t FUJITSU_GENERAL_TRL_SPACE = 8000;
+constexpr uint16_t FUJITSU_GENERAL_TRL_MARK = 420;
+constexpr uint16_t FUJITSU_GENERAL_TRL_SPACE = 8000;
 
-const uint32_t FUJITSU_GENERAL_CARRIER_FREQUENCY = 38000;
+constexpr uint32_t FUJITSU_GENERAL_CARRIER_FREQUENCY = 38000;
 
 void FujitsuGeneralClimate::transmit_state() {
   if (this->mode == climate::CLIMATE_MODE_OFF) {
@@ -111,68 +102,67 @@ void FujitsuGeneralClimate::transmit_state() {
   uint8_t temperature_clamped =
       (uint8_t) roundf(clamp<float>(this->target_temperature, FUJITSU_GENERAL_TEMP_MIN, FUJITSU_GENERAL_TEMP_MAX));
   uint8_t temperature_offset = temperature_clamped - FUJITSU_GENERAL_TEMP_MIN;
-  SET_NIBBLE(remote_state, FUJITSU_GENERAL_TEMPERATURE_NIBBLE, temperature_offset);
+  set_nibble(remote_state, FUJITSU_GENERAL_TEMPERATURE_NIBBLE, temperature_offset);
 
   // Set power on
   if (!this->power_) {
-    SET_NIBBLE(remote_state, FUJITSU_GENERAL_POWER_ON_NIBBLE, FUJITSU_GENERAL_POWER_ON);
+    set_nibble(remote_state, FUJITSU_GENERAL_POWER_ON_NIBBLE, FUJITSU_GENERAL_POWER_ON);
   }
 
   // Set mode
   switch (this->mode) {
     case climate::CLIMATE_MODE_COOL:
-      SET_NIBBLE(remote_state, FUJITSU_GENERAL_MODE_NIBBLE, FUJITSU_GENERAL_MODE_COOL);
+      set_nibble(remote_state, FUJITSU_GENERAL_MODE_NIBBLE, FUJITSU_GENERAL_MODE_COOL);
       break;
     case climate::CLIMATE_MODE_HEAT:
-      SET_NIBBLE(remote_state, FUJITSU_GENERAL_MODE_NIBBLE, FUJITSU_GENERAL_MODE_HEAT);
+      set_nibble(remote_state, FUJITSU_GENERAL_MODE_NIBBLE, FUJITSU_GENERAL_MODE_HEAT);
       break;
     case climate::CLIMATE_MODE_DRY:
-      SET_NIBBLE(remote_state, FUJITSU_GENERAL_MODE_NIBBLE, FUJITSU_GENERAL_MODE_DRY);
+      set_nibble(remote_state, FUJITSU_GENERAL_MODE_NIBBLE, FUJITSU_GENERAL_MODE_DRY);
       break;
     case climate::CLIMATE_MODE_FAN_ONLY:
-      SET_NIBBLE(remote_state, FUJITSU_GENERAL_MODE_NIBBLE, FUJITSU_GENERAL_MODE_FAN);
+      set_nibble(remote_state, FUJITSU_GENERAL_MODE_NIBBLE, FUJITSU_GENERAL_MODE_FAN);
       break;
     case climate::CLIMATE_MODE_HEAT_COOL:
     default:
-      SET_NIBBLE(remote_state, FUJITSU_GENERAL_MODE_NIBBLE, FUJITSU_GENERAL_MODE_AUTO);
+      set_nibble(remote_state, FUJITSU_GENERAL_MODE_NIBBLE, FUJITSU_GENERAL_MODE_AUTO);
       break;
-      // TODO: CLIMATE_MODE_10C is missing from esphome
   }
 
   // Set fan
   switch (this->fan_mode.value_or(climate::CLIMATE_FAN_ON)) {
     case climate::CLIMATE_FAN_HIGH:
-      SET_NIBBLE(remote_state, FUJITSU_GENERAL_FAN_NIBBLE, FUJITSU_GENERAL_FAN_HIGH);
+      set_nibble(remote_state, FUJITSU_GENERAL_FAN_NIBBLE, FUJITSU_GENERAL_FAN_HIGH);
       break;
     case climate::CLIMATE_FAN_MEDIUM:
-      SET_NIBBLE(remote_state, FUJITSU_GENERAL_FAN_NIBBLE, FUJITSU_GENERAL_FAN_MEDIUM);
+      set_nibble(remote_state, FUJITSU_GENERAL_FAN_NIBBLE, FUJITSU_GENERAL_FAN_MEDIUM);
       break;
     case climate::CLIMATE_FAN_LOW:
-      SET_NIBBLE(remote_state, FUJITSU_GENERAL_FAN_NIBBLE, FUJITSU_GENERAL_FAN_LOW);
+      set_nibble(remote_state, FUJITSU_GENERAL_FAN_NIBBLE, FUJITSU_GENERAL_FAN_LOW);
       break;
     case climate::CLIMATE_FAN_QUIET:
-      SET_NIBBLE(remote_state, FUJITSU_GENERAL_FAN_NIBBLE, FUJITSU_GENERAL_FAN_SILENT);
+      set_nibble(remote_state, FUJITSU_GENERAL_FAN_NIBBLE, FUJITSU_GENERAL_FAN_SILENT);
       break;
     case climate::CLIMATE_FAN_AUTO:
     default:
-      SET_NIBBLE(remote_state, FUJITSU_GENERAL_FAN_NIBBLE, FUJITSU_GENERAL_FAN_AUTO);
+      set_nibble(remote_state, FUJITSU_GENERAL_FAN_NIBBLE, FUJITSU_GENERAL_FAN_AUTO);
       break;
   }
 
   // Set swing
   switch (this->swing_mode) {
     case climate::CLIMATE_SWING_VERTICAL:
-      SET_NIBBLE(remote_state, FUJITSU_GENERAL_SWING_NIBBLE, FUJITSU_GENERAL_SWING_VERTICAL);
+      set_nibble(remote_state, FUJITSU_GENERAL_SWING_NIBBLE, FUJITSU_GENERAL_SWING_VERTICAL);
       break;
     case climate::CLIMATE_SWING_HORIZONTAL:
-      SET_NIBBLE(remote_state, FUJITSU_GENERAL_SWING_NIBBLE, FUJITSU_GENERAL_SWING_HORIZONTAL);
+      set_nibble(remote_state, FUJITSU_GENERAL_SWING_NIBBLE, FUJITSU_GENERAL_SWING_HORIZONTAL);
       break;
     case climate::CLIMATE_SWING_BOTH:
-      SET_NIBBLE(remote_state, FUJITSU_GENERAL_SWING_NIBBLE, FUJITSU_GENERAL_SWING_BOTH);
+      set_nibble(remote_state, FUJITSU_GENERAL_SWING_NIBBLE, FUJITSU_GENERAL_SWING_BOTH);
       break;
     case climate::CLIMATE_SWING_OFF:
     default:
-      SET_NIBBLE(remote_state, FUJITSU_GENERAL_SWING_NIBBLE, FUJITSU_GENERAL_SWING_NONE);
+      set_nibble(remote_state, FUJITSU_GENERAL_SWING_NIBBLE, FUJITSU_GENERAL_SWING_NONE);
       break;
   }
 
@@ -243,6 +233,52 @@ uint8_t FujitsuGeneralClimate::checksum_state_(uint8_t const *message) {
 
 uint8_t FujitsuGeneralClimate::checksum_util_(uint8_t const *message) { return 255 - message[5]; }
 
+// These decoders use if chains rather than switches: on ESP8266 the compiler turns a dense switch
+// into a lookup table in .rodata, which lives in RAM there.
+climate::ClimateMode decode_mode(uint8_t mode_field, climate::ClimateMode current_mode) {
+  const uint8_t mode = mode_field & FUJITSU_GENERAL_MODE_MASK;
+  if (mode == FUJITSU_GENERAL_MODE_COOL)
+    return climate::CLIMATE_MODE_COOL;
+  if (mode == FUJITSU_GENERAL_MODE_HEAT)
+    return climate::CLIMATE_MODE_HEAT;
+  if (mode == FUJITSU_GENERAL_MODE_DRY)
+    return climate::CLIMATE_MODE_DRY;
+  if (mode == FUJITSU_GENERAL_MODE_FAN)
+    return climate::CLIMATE_MODE_FAN_ONLY;
+  if (mode == FUJITSU_GENERAL_MODE_AUTO)
+    return climate::CLIMATE_MODE_HEAT_COOL;
+  // A state frame means the unit is on, so never keep OFF.
+  ESP_LOGW(TAG, "Received unassigned mode %X, keeping the current mode", mode);
+  return current_mode == climate::CLIMATE_MODE_OFF ? climate::CLIMATE_MODE_HEAT_COOL : current_mode;
+}
+
+optional<climate::ClimateFanMode> decode_fan_mode(uint8_t fan_field, optional<climate::ClimateFanMode> current_mode) {
+  const uint8_t fan = fan_field & FUJITSU_GENERAL_FAN_MASK;
+  if (fan == FUJITSU_GENERAL_FAN_HIGH)
+    return climate::CLIMATE_FAN_HIGH;
+  if (fan == FUJITSU_GENERAL_FAN_MEDIUM)
+    return climate::CLIMATE_FAN_MEDIUM;
+  if (fan == FUJITSU_GENERAL_FAN_LOW)
+    return climate::CLIMATE_FAN_LOW;
+  if (fan == FUJITSU_GENERAL_FAN_SILENT)
+    return climate::CLIMATE_FAN_QUIET;
+  if (fan == FUJITSU_GENERAL_FAN_AUTO)
+    return climate::CLIMATE_FAN_AUTO;
+  ESP_LOGW(TAG, "Received unassigned fan speed %X, keeping the current fan mode", fan);
+  return current_mode;
+}
+
+climate::ClimateSwingMode decode_swing_mode(uint8_t swing_field) {
+  const uint8_t swing = swing_field & FUJITSU_GENERAL_SWING_MASK;
+  if (swing == FUJITSU_GENERAL_SWING_VERTICAL)
+    return climate::CLIMATE_SWING_VERTICAL;
+  if (swing == FUJITSU_GENERAL_SWING_HORIZONTAL)
+    return climate::CLIMATE_SWING_HORIZONTAL;
+  if (swing == FUJITSU_GENERAL_SWING_BOTH)
+    return climate::CLIMATE_SWING_BOTH;
+  return climate::CLIMATE_SWING_OFF;
+}
+
 bool FujitsuGeneralClimate::on_receive(remote_base::RemoteReceiveData data) {
   ESP_LOGV(TAG, "Received IR message");
 
@@ -316,70 +352,25 @@ bool FujitsuGeneralClimate::on_receive(remote_base::RemoteReceiveData data) {
   }
 
   if (recv_message_type == FUJITSU_GENERAL_MESSAGE_TYPE_STATE) {
-    const uint8_t recv_tempertature = GET_NIBBLE(recv_message, FUJITSU_GENERAL_TEMPERATURE_NIBBLE);
+    const uint8_t recv_tempertature = get_nibble(recv_message, FUJITSU_GENERAL_TEMPERATURE_NIBBLE);
     const uint8_t offset_temperature = recv_tempertature + FUJITSU_GENERAL_TEMP_MIN;
     this->target_temperature = offset_temperature;
     ESP_LOGV(TAG, "Received temperature %d", offset_temperature);
 
-    const uint8_t recv_mode = GET_NIBBLE(recv_message, FUJITSU_GENERAL_MODE_NIBBLE);
+    const uint8_t recv_mode = get_nibble(recv_message, FUJITSU_GENERAL_MODE_NIBBLE);
     ESP_LOGV(TAG, "Received mode %X", recv_mode);
-    switch (recv_mode) {
-      case FUJITSU_GENERAL_MODE_COOL:
-        this->mode = climate::CLIMATE_MODE_COOL;
-        break;
-      case FUJITSU_GENERAL_MODE_HEAT:
-        this->mode = climate::CLIMATE_MODE_HEAT;
-        break;
-      case FUJITSU_GENERAL_MODE_DRY:
-        this->mode = climate::CLIMATE_MODE_DRY;
-        break;
-      case FUJITSU_GENERAL_MODE_FAN:
-        this->mode = climate::CLIMATE_MODE_FAN_ONLY;
-        break;
-      case FUJITSU_GENERAL_MODE_AUTO:
-      default:
-        // TODO: CLIMATE_MODE_10C is missing from esphome
-        this->mode = climate::CLIMATE_MODE_HEAT_COOL;
-        break;
+    if ((recv_mode & FUJITSU_GENERAL_CLEAN_BIT) != 0) {
+      ESP_LOGW(TAG, "Received a frame with the clean / 10 degree heat bit set, which is not supported");
     }
+    this->mode = decode_mode(recv_mode, this->mode);
 
-    const uint8_t recv_fan_mode = GET_NIBBLE(recv_message, FUJITSU_GENERAL_FAN_NIBBLE);
+    const uint8_t recv_fan_mode = get_nibble(recv_message, FUJITSU_GENERAL_FAN_NIBBLE);
     ESP_LOGV(TAG, "Received fan mode %X", recv_fan_mode);
-    switch (recv_fan_mode) {
-      case FUJITSU_GENERAL_FAN_SILENT:
-        this->fan_mode = climate::CLIMATE_FAN_QUIET;
-        break;
-      case FUJITSU_GENERAL_FAN_LOW:
-        this->fan_mode = climate::CLIMATE_FAN_LOW;
-        break;
-      case FUJITSU_GENERAL_FAN_MEDIUM:
-        this->fan_mode = climate::CLIMATE_FAN_MEDIUM;
-        break;
-      case FUJITSU_GENERAL_FAN_HIGH:
-        this->fan_mode = climate::CLIMATE_FAN_HIGH;
-        break;
-      case FUJITSU_GENERAL_FAN_AUTO:
-      default:
-        this->fan_mode = climate::CLIMATE_FAN_AUTO;
-        break;
-    }
+    this->fan_mode = decode_fan_mode(recv_fan_mode, this->fan_mode);
 
-    const uint8_t recv_swing_mode = GET_NIBBLE(recv_message, FUJITSU_GENERAL_SWING_NIBBLE);
+    const uint8_t recv_swing_mode = get_nibble(recv_message, FUJITSU_GENERAL_SWING_NIBBLE);
     ESP_LOGV(TAG, "Received swing mode %X", recv_swing_mode);
-    switch (recv_swing_mode) {
-      case FUJITSU_GENERAL_SWING_VERTICAL:
-        this->swing_mode = climate::CLIMATE_SWING_VERTICAL;
-        break;
-      case FUJITSU_GENERAL_SWING_HORIZONTAL:
-        this->swing_mode = climate::CLIMATE_SWING_HORIZONTAL;
-        break;
-      case FUJITSU_GENERAL_SWING_BOTH:
-        this->swing_mode = climate::CLIMATE_SWING_BOTH;
-        break;
-      case FUJITSU_GENERAL_SWING_NONE:
-      default:
-        this->swing_mode = climate::CLIMATE_SWING_OFF;
-    }
+    this->swing_mode = decode_swing_mode(recv_swing_mode);
 
     this->power_ = true;
   }

esphome/components/fujitsu_general/fujitsu_general.h

@@ -7,8 +7,8 @@
 
 namespace esphome::fujitsu_general {
 
-const uint8_t FUJITSU_GENERAL_TEMP_MIN = 16;  // Celsius // TODO 16 for heating, 18 for cooling, unsupported in ESPH
-const uint8_t FUJITSU_GENERAL_TEMP_MAX = 30;  // Celsius
+constexpr uint8_t FUJITSU_GENERAL_TEMP_MIN = 16;  // Celsius // TODO 16 for heating, 18 for cooling, unsupported in ESPH
+constexpr uint8_t FUJITSU_GENERAL_TEMP_MAX = 30;  // Celsius
 
 // clang-format off
 /**
@@ -43,9 +43,36 @@ const uint8_t FUJITSU_GENERAL_TEMP_MAX = 30;  // Celsius
  * heat 30 swing vert  00101000 11000110 00000000 00001000  00001000 01111111 10010000 00001100  00000111 00100000 00101000 00000000  00000000 00000000 00000100 00011101
  * heat 30 noswing     00101000 11000110 00000000 00001000  00001000 01111111 10010000 00001100  00000111 00100000 00100000 00000000  00000000 00000000 00000100 00010011
  * ```
+ *
+ * The column markers show which bits varied in these captures, not field widths.
  */
 // clang-format on
 
+// Bits are reversed within each byte, so an odd nibble index is the low half of its byte.
+constexpr uint8_t get_nibble(const uint8_t *message, uint8_t nibble) {
+  return (message[nibble / 2] >> ((nibble % 2) ? 0 : 4)) & 0b00001111;
+}
+
+/// Write a nibble into a zero-initialised frame.
+constexpr void set_nibble(uint8_t *message, uint8_t nibble, uint8_t value) {
+  message[nibble / 2] |= (value & 0b00001111) << ((nibble % 2) ? 0 : 4);
+}
+
+// Nibble indices of the state frame fields.
+constexpr uint8_t FUJITSU_GENERAL_TEMPERATURE_NIBBLE = 16;
+constexpr uint8_t FUJITSU_GENERAL_POWER_ON_NIBBLE = 17;
+constexpr uint8_t FUJITSU_GENERAL_MODE_NIBBLE = 19;
+constexpr uint8_t FUJITSU_GENERAL_SWING_NIBBLE = 20;
+constexpr uint8_t FUJITSU_GENERAL_FAN_NIBBLE = 21;
+
+/// Unassigned values keep the current mode, except that OFF becomes HEAT_COOL.
+climate::ClimateMode decode_mode(uint8_t mode_field, climate::ClimateMode current_mode);
+
+/// Unassigned values keep the current fan mode.
+optional<climate::ClimateFanMode> decode_fan_mode(uint8_t fan_field, optional<climate::ClimateFanMode> current_mode);
+
+climate::ClimateSwingMode decode_swing_mode(uint8_t swing_field);
+
 class FujitsuGeneralClimate final : public climate_ir::ClimateIR {
  public:
   FujitsuGeneralClimate()

esphome/components/globals/__init__.py

@@ -8,8 +8,7 @@ from esphome.const import (
     CONF_TYPE,
     CONF_VALUE,
 )
-from esphome.core import ID, CoroPriority, coroutine_with_priority
-from esphome.cpp_generator import MockObj, TemplateArgsType
+from esphome.core import CoroPriority, coroutine_with_priority
 from esphome.types import ConfigType
 
 CODEOWNERS = ["@esphome/core"]
@@ -21,7 +20,6 @@ RestoringGlobalsComponent = globals_ns.class_(
 RestoringGlobalStringComponent = globals_ns.class_(
     "RestoringGlobalStringComponent", cg.PollingComponent
 )
-GlobalVarSetAction = globals_ns.class_("GlobalVarSetAction", automation.Action)
 
 CONF_MAX_RESTORE_DATA_LENGTH = "max_restore_data_length"
 
@@ -94,33 +92,19 @@ async def to_code(config: ConfigType) -> None:
         cg.add(glob.set_name_hash(hash_))
 
 
-@automation.register_action(
+# A lambda returns the global's own type so `return 42;` reduces to a cast; the value
+# itself is raw C++ text.
+_VALUE_TYPE = "std::remove_reference_t<decltype({parent}->value())>"
+
+automation.register_apply_action(
     "globals.set",
-    GlobalVarSetAction,
     cv.Schema(
         {
             cv.Required(CONF_ID): cv.use_id(GlobalsComponent),
             cv.Required(CONF_VALUE): cv.templatable(cv.string_strict),
         }
     ),
-    synchronous=True,
+    automation.ApplyField(
+        CONF_VALUE, "value() = {}", _VALUE_TYPE, const_fn=lambda _, value: value
+    ),
 )
-async def globals_set_to_code(
-    config: ConfigType,
-    action_id: ID,
-    template_arg: cg.TemplateArguments,
-    args: TemplateArgsType,
-) -> MockObj:
-    full_id, paren = await cg.get_variable_with_full_id(config[CONF_ID])
-    template_arg = cg.TemplateArguments(full_id.type, *template_arg)
-    var = cg.new_Pvariable(action_id, template_arg, paren)
-    # Use the global's value_type alias as the lambda return type so
-    # TemplatableFn stores a direct function pointer instead of going through
-    # the deprecated converting trampoline when the value expression deduces
-    # to a different type (e.g. int literal assigned to a float global).
-    value_type = cg.RawExpression(f"{full_id.type}::value_type")
-    templ = await cg.templatable(
-        config[CONF_VALUE], args, value_type, to_exp=cg.RawExpression
-    )
-    cg.add(var.set_value(templ))
-    return var

esphome/components/globals/globals_component.h

@@ -1,8 +1,10 @@
 #pragma once
 
-#include "esphome/core/automation.h"
 #include "esphome/core/component.h"
 #include "esphome/core/helpers.h"
+#include "esphome/core/preferences.h"
+
+#include <array>
 #include <cstring>
 
 namespace esphome::globals {
@@ -127,20 +129,6 @@ template<typename T, uint8_t SZ> class RestoringGlobalStringComponent : public P
   ESPPreferenceObject rtc_;
 };
 
-template<class C, typename... Ts> class GlobalVarSetAction final : public Action<Ts...> {
- public:
-  explicit GlobalVarSetAction(C *parent) : parent_(parent) {}
-
-  using T = typename C::value_type;
-
-  TEMPLATABLE_VALUE(T, value);
-
-  void play(const Ts &...x) override { this->parent_->value() = this->value_.value(x...); }
-
- protected:
-  C *parent_;
-};
-
 template<typename T> T &id(GlobalsComponent<T> *value) { return value->value(); }
 template<typename T> T &id(RestoringGlobalsComponent<T> *value) { return value->value(); }
 template<typename T, uint8_t SZ> T &id(RestoringGlobalStringComponent<T, SZ> *value) { return value->value(); }

esphome/components/gree/gree.cpp

@@ -5,17 +5,6 @@ namespace esphome::gree {
 
 static const char *const TAG = "gree.climate";
 
-climate::ClimateTraits GreeClimate::traits() {
-  auto t = climate_ir::ClimateIR::traits();
-  // ClimateIR unconditionally includes HEAT_COOL in the base mode set; remove it when heat is not supported.
-  if (!this->supports_heat_) {
-    auto modes = t.get_supported_modes();
-    modes.erase(climate::CLIMATE_MODE_HEAT_COOL);
-    t.set_supported_modes(modes);
-  }
-  return t;
-}
-
 void GreeClimate::set_model(Model model) {
   if (model == GREE_YAN) {
     // YAN only has a vertical vane; the horizontal swing IR bytes are not defined for this model.
@@ -42,23 +31,24 @@ void GreeClimate::set_mode_bit(uint8_t bit_mask, bool enabled) {
 
 void GreeClimate::transmit_state() {
   uint8_t remote_state[8] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00};
+  const Model model = this->model_;
 
   remote_state[0] = this->fan_speed_() | this->operation_mode_();
   remote_state[1] = this->temperature_();
 
-  if (this->model_ == GREE_YAN) {
+  if (model == GREE_YAN) {
     remote_state[2] = 0x20;  // bits 0..3 always 0000, bits 4..7 TURBO, LIGHT, HEALTH, X-FAN
     remote_state[3] = 0x50;  // bits 4..7 always 0101
     remote_state[4] = this->vertical_swing_();
   }
 
-  if (this->model_ == GREE_YX1FF || this->model_ == GREE_YAG) {
+  if (model == GREE_YX1FF || model == GREE_YAG) {
     remote_state[2] = 0x60;
     remote_state[3] = 0x50;
     remote_state[4] = this->vertical_swing_();
   }
 
-  if (this->model_ == GREE_YAG) {
+  if (model == GREE_YAG) {
     remote_state[5] = 0x40;
 
     if (this->vertical_swing_() == GREE_VDIR_SWING || this->horizontal_swing_() == GREE_HDIR_SWING) {
@@ -66,11 +56,11 @@ void GreeClimate::transmit_state() {
     }
   }
 
-  if (this->model_ == GREE_YAC || this->model_ == GREE_YAG) {
+  if (model == GREE_YAC || model == GREE_YAG) {
     remote_state[4] |= (this->horizontal_swing_() << 4);
   }
 
-  if (this->model_ == GREE_YAA || this->model_ == GREE_YAC || this->model_ == GREE_YAC1FB9) {
+  if (model == GREE_YAA || model == GREE_YAC || model == GREE_YAC1FB9) {
     remote_state[2] = 0x20;  // bits 0..3 always 0000, bits 4..7 TURBO, LIGHT, HEALTH, X-FAN
     remote_state[3] = 0x50;  // bits 4..7 always 0101
     remote_state[6] = 0x20;  // YAA1FB, FAA1FB1, YB1F2 bits 4..7 always 0010
@@ -82,14 +72,13 @@ void GreeClimate::transmit_state() {
     }
   }
 
-  if (this->model_ == GREE_YAN || this->model_ == GREE_YAA || this->model_ == GREE_YAC ||
-      this->model_ == GREE_YAC1FB9) {
+  if (model == GREE_YAN || model == GREE_YAA || model == GREE_YAC || model == GREE_YAC1FB9) {
     // Merge the mode bits into remote_state[2]
     // Clear the mode bits (bits 4-7) and OR in the current mode_bits_
     remote_state[2] = (remote_state[2] & 0x0F) | this->mode_bits_;
   }
 
-  if (this->model_ == GREE_YX1FF) {
+  if (model == GREE_YX1FF) {
     if (this->fan_speed_() == GREE_FAN_TURBO) {
       remote_state[2] |= GREE_FAN_TURBO_BIT;
     }
@@ -100,7 +89,7 @@ void GreeClimate::transmit_state() {
   }
 
   // Calculate the checksum
-  if (this->model_ == GREE_YAN || this->model_ == GREE_YX1FF) {
+  if (model == GREE_YAN || model == GREE_YX1FF) {
     remote_state[7] = ((remote_state[0] << 4) + (remote_state[1] << 4) + 0xC0);
   } else {
     remote_state[7] =
@@ -115,7 +104,7 @@ void GreeClimate::transmit_state() {
   data->set_carrier_frequency(GREE_IR_FREQUENCY);
 
   data->mark(GREE_HEADER_MARK);
-  if (this->model_ == GREE_YAC1FB9) {
+  if (model == GREE_YAC1FB9) {
     data->space(GREE_YAC1FB9_HEADER_SPACE);
   } else {
     data->space(GREE_HEADER_SPACE);
@@ -137,7 +126,7 @@ void GreeClimate::transmit_state() {
   data->space(GREE_ZERO_SPACE);
 
   data->mark(GREE_BIT_MARK);
-  if (this->model_ == GREE_YAC1FB9) {
+  if (model == GREE_YAC1FB9) {
     data->space(GREE_YAC1FB9_MESSAGE_SPACE);
   } else {
     data->space(GREE_MESSAGE_SPACE);

esphome/components/gree/gree.h

@@ -77,7 +77,7 @@ static constexpr uint8_t GREE_PRESET_SLEEP = 0x01;
 static constexpr uint8_t GREE_PRESET_SLEEP_BIT = 0x80;
 
 // Model codes
-enum Model { GREE_GENERIC, GREE_YAN, GREE_YAA, GREE_YAC, GREE_YAC1FB9, GREE_YX1FF, GREE_YAG };
+enum Model : uint8_t { GREE_GENERIC, GREE_YAN, GREE_YAA, GREE_YAC, GREE_YAC1FB9, GREE_YX1FF, GREE_YAG };
 
 class GreeClimate final : public climate_ir::ClimateIR {
  public:
@@ -94,7 +94,6 @@ class GreeClimate final : public climate_ir::ClimateIR {
  protected:
   // Transmit via IR the state of this climate controller.
   void transmit_state() override;
-  climate::ClimateTraits traits() override;
 
   uint8_t operation_mode_();
   uint8_t fan_speed_();

esphome/components/growatt_solar/sensor.py

@@ -22,6 +22,7 @@ from esphome.const import (
     UNIT_AMPERE,
     UNIT_CELSIUS,
     UNIT_HERTZ,
+    UNIT_KILOWATT_HOURS,
     UNIT_VOLT,
     UNIT_WATT,
 )
@@ -33,7 +34,6 @@ CONF_TOTAL_GENERATION_TIME = "total_generation_time"
 CONF_TODAY_GENERATION_TIME = "today_generation_time"
 CONF_PV1 = "pv1"
 CONF_PV2 = "pv2"
-UNIT_KILOWATT_HOURS = "kWh"
 UNIT_HOURS = "h"
 UNIT_KOHM = "kΩ"
 UNIT_MILLIAMPERE = "mA"

esphome/components/havells_solar/sensor.py

@@ -23,6 +23,7 @@ from esphome.const import (
     UNIT_AMPERE,
     UNIT_DEGREES,
     UNIT_HERTZ,
+    UNIT_KILOWATT_HOURS,
     UNIT_MINUTE,
     UNIT_VOLT,
     UNIT_VOLT_AMPS_REACTIVE,
@@ -36,7 +37,6 @@ CONF_TOTAL_GENERATION_TIME = "total_generation_time"
 CONF_TODAY_GENERATION_TIME = "today_generation_time"
 CONF_PV1 = "pv1"
 CONF_PV2 = "pv2"
-UNIT_KILOWATT_HOURS = "kWh"
 UNIT_HOURS = "h"
 UNIT_KOHM = "kΩ"
 UNIT_MILLIAMPERE = "mA"

esphome/components/hlk_fm22x/__init__.py

@@ -27,11 +27,6 @@ HlkFm22xComponent = hlk_fm22x_ns.class_(
     "HlkFm22xComponent", cg.PollingComponent, uart.UARTDevice
 )
 
-EnrollmentAction = hlk_fm22x_ns.class_("EnrollmentAction", automation.Action)
-DeleteAction = hlk_fm22x_ns.class_("DeleteAction", automation.Action)
-DeleteAllAction = hlk_fm22x_ns.class_("DeleteAllAction", automation.Action)
-ScanAction = hlk_fm22x_ns.class_("ScanAction", automation.Action)
-ResetAction = hlk_fm22x_ns.class_("ResetAction", automation.Action)
 
 CONFIG_SCHEMA = cv.All(
     cv.Schema(
@@ -101,9 +96,8 @@ async def to_code(config):
     await automation.build_callback_automations(var, config, _CALLBACK_AUTOMATIONS)
 
 
-@automation.register_action(
+automation.register_apply_action(
     "hlk_fm22x.enroll",
-    EnrollmentAction,
     cv.maybe_simple_value(
         {
             cv.GenerateID(): cv.use_id(HlkFm22xComponent),
@@ -112,22 +106,14 @@ async def to_code(config):
         },
         key=CONF_NAME,
     ),
-    synchronous=True,
+    automation.ApplyCall(
+        "enroll_face({}, static_cast<hlk_fm22x::HlkFm22xFaceDirection>({}))",
+        ((CONF_NAME, cg.std_string), (CONF_DIRECTION, cg.uint8)),
+    ),
 )
-async def hlk_fm22x_enroll_to_code(config, action_id, template_arg, args):
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
 
-    template_ = await cg.templatable(config[CONF_NAME], args, cg.std_string)
-    cg.add(var.set_name(template_))
-    template_ = await cg.templatable(config[CONF_DIRECTION], args, cg.uint8)
-    cg.add(var.set_direction(template_))
-    return var
-
-
-@automation.register_action(
+automation.register_apply_action(
     "hlk_fm22x.delete",
-    DeleteAction,
     cv.maybe_simple_value(
         {
             cv.GenerateID(): cv.use_id(HlkFm22xComponent),
@@ -135,60 +121,37 @@ async def hlk_fm22x_enroll_to_code(config, action_id, template_arg, args):
         },
         key=CONF_FACE_ID,
     ),
-    synchronous=True,
+    automation.ApplyField(CONF_FACE_ID, "delete_face", cg.int16),
 )
-async def hlk_fm22x_delete_to_code(config, action_id, template_arg, args):
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
 
-    template_ = await cg.templatable(config[CONF_FACE_ID], args, cg.int16)
-    cg.add(var.set_face_id(template_))
-    return var
-
-
-@automation.register_action(
+automation.register_apply_action(
     "hlk_fm22x.delete_all",
-    DeleteAllAction,
     cv.Schema(
         {
             cv.GenerateID(): cv.use_id(HlkFm22xComponent),
         }
     ),
-    synchronous=True,
+    automation.ApplyCall("delete_all_faces()"),
 )
-async def hlk_fm22x_delete_all_to_code(config, action_id, template_arg, args):
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
-    return var
 
 
-@automation.register_action(
+automation.register_apply_action(
     "hlk_fm22x.scan",
-    ScanAction,
     cv.Schema(
         {
             cv.GenerateID(): cv.use_id(HlkFm22xComponent),
         }
     ),
-    synchronous=True,
+    automation.ApplyCall("scan_face()"),
 )
-async def hlk_fm22x_scan_to_code(config, action_id, template_arg, args):
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
-    return var
 
 
-@automation.register_action(
+automation.register_apply_action(
     "hlk_fm22x.reset",
-    ResetAction,
     cv.Schema(
         {
             cv.GenerateID(): cv.use_id(HlkFm22xComponent),
         }
     ),
-    synchronous=True,
+    automation.ApplyCall("reset()"),
 )
-async def hlk_fm22x_reset_to_code(config, action_id, template_arg, args):
-    var = cg.new_Pvariable(action_id, template_arg)
-    await cg.register_parented(var, config[CONF_ID])
-    return var

esphome/components/hlk_fm22x/hlk_fm22x.h

@@ -141,41 +141,4 @@ class HlkFm22xComponent final : public PollingComponent, public uart::UARTDevice
   CallbackManager<void(uint8_t)> enrollment_failed_callback_;
 };
 
-template<typename... Ts> class EnrollmentAction final : public Action<Ts...>, public Parented<HlkFm22xComponent> {
- public:
-  TEMPLATABLE_VALUE(std::string, name)
-  TEMPLATABLE_VALUE(uint8_t, direction)
-
-  void play(const Ts &...x) override {
-    auto name = this->name_.value(x...);
-    auto direction = (HlkFm22xFaceDirection) this->direction_.value(x...);
-    this->parent_->enroll_face(name, direction);
-  }
-};
-
-template<typename... Ts> class DeleteAction final : public Action<Ts...>, public Parented<HlkFm22xComponent> {
- public:
-  TEMPLATABLE_VALUE(int16_t, face_id)
-
-  void play(const Ts &...x) override {
-    auto face_id = this->face_id_.value(x...);
-    this->parent_->delete_face(face_id);
-  }
-};
-
-template<typename... Ts> class DeleteAllAction final : public Action<Ts...>, public Parented<HlkFm22xComponent> {
- public:
-  void play(const Ts &...x) override { this->parent_->delete_all_faces(); }
-};
-
-template<typename... Ts> class ScanAction final : public Action<Ts...>, public Parented<HlkFm22xComponent> {
- public:
-  void play(const Ts &...x) override { this->parent_->scan_face(); }
-};
-
-template<typename... Ts> class ResetAction final : public Action<Ts...>, public Parented<HlkFm22xComponent> {
- public:
-  void play(const Ts &...x) override { this->parent_->reset(); }
-};
-
 }  // namespace esphome::hlk_fm22x

esphome/components/ina2xx_base/__init__.py

@@ -24,6 +24,7 @@ from esphome.const import (
     STATE_CLASS_TOTAL_INCREASING,
     UNIT_AMPERE,
     UNIT_CELSIUS,
+    UNIT_MILLIVOLT,
     UNIT_VOLT,
     UNIT_WATT,
     UNIT_WATT_HOURS,
@@ -44,7 +45,6 @@ CONF_TEMPERATURE_COEFFICIENT = "temperature_coefficient"
 CONF_RESET_ON_BOOT = "reset_on_boot"
 UNIT_COULOMB = "C"
 UNIT_JOULE = "J"
-UNIT_MILLIVOLT = "mV"
 
 ina2xx_base_ns = cg.esphome_ns.namespace("ina2xx_base")
 INA2XX = ina2xx_base_ns.class_("INA2XX", cg.PollingComponent)

esphome/components/ledc/ledc_output.h

@@ -2,7 +2,6 @@
 
 #include "esphome/core/component.h"
 #include "esphome/core/hal.h"
-#include "esphome/core/automation.h"
 #include "esphome/components/output/float_output.h"
 #include <cstdint>
 
@@ -43,20 +42,6 @@ class LEDCOutput final : public output::FloatOutput, public Component {
   bool initialized_ = false;
 };
 
-template<typename... Ts> class SetFrequencyAction final : public Action<Ts...> {
- public:
-  SetFrequencyAction(LEDCOutput *parent) : parent_(parent) {}
-  TEMPLATABLE_VALUE(float, frequency);
-
-  void play(const Ts &...x) {
-    float freq = this->frequency_.value(x...);
-    this->parent_->update_frequency(freq);
-  }
-
- protected:
-  LEDCOutput *parent_;
-};
-
 }  // namespace esphome::ledc
 
 #endif

esphome/components/ledc/output.py

@@ -12,8 +12,6 @@ from esphome.const import (
     CONF_PHASE_ANGLE,
     CONF_PIN,
 )
-from esphome.core import ID
-from esphome.cpp_generator import MockObj, TemplateArgsType
 from esphome.types import ConfigType
 
 DEPENDENCIES = ["esp32"]
@@ -45,7 +43,6 @@ def validate_frequency(value: Any) -> float:
 
 ledc_ns = cg.esphome_ns.namespace("ledc")
 LEDCOutput = ledc_ns.class_("LEDCOutput", output.FloatOutput, cg.Component)
-SetFrequencyAction = ledc_ns.class_("SetFrequencyAction", automation.Action)
 
 CONFIG_SCHEMA = output.FLOAT_OUTPUT_SCHEMA.extend(
     {
@@ -77,25 +74,13 @@ async def to_code(config: ConfigType) -> None:
         cg.add(var.set_phase_angle(config[CONF_PHASE_ANGLE]))
 
 
-@automation.register_action(
+automation.register_apply_action(
     "output.ledc.set_frequency",
-    SetFrequencyAction,
     cv.Schema(
         {
             cv.Required(CONF_ID): cv.use_id(LEDCOutput),
             cv.Required(CONF_FREQUENCY): cv.templatable(validate_frequency),
         }
     ),
-    synchronous=True,
+    automation.ApplyField(CONF_FREQUENCY, "update_frequency", cg.float_),
 )
-async def ledc_set_frequency_to_code(
-    config: ConfigType,
-    action_id: ID,
-    template_arg: cg.TemplateArguments,
-    args: TemplateArgsType,
-) -> MockObj:
-    paren = await cg.get_variable(config[CONF_ID])
-    var = cg.new_Pvariable(action_id, template_arg, paren)
-    template_ = await cg.templatable(config[CONF_FREQUENCY], args, cg.float_)
-    cg.add(var.set_frequency(template_))
-    return var