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[api] Add description and example metadata to user-defined actions (#18881)

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Co-authored-by: J. Nick Koston <nick@home-assistant.io>
This commit is contained in:
Brandon Harvey
2026-08-30 13:52:51 -05:00
committed by GitHub
co-authored by J. Nick Koston
parent 0607c228f5
commit fb65096ea3
22 changed files with 591 additions and 56 deletions
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esphome/components/api/user_services.cpp
+43
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@@ -1,9 +1,52 @@
#include "user_services.h"
#include "esphome/core/hal.h"
#include "esphome/core/log.h"
#include "esphome/core/string_ref.h"
namespace esphome::api {
StringRef UserServiceStatic::str_(size_t idx, std::span<char> &scratch) const {
const char *s = progmem_read_ptr(&this->strings_[idx]);
if (s == nullptr)
return {};
#ifdef USE_ESP8266
// Codegen sizes the scratch buffer for the largest service; the bound only guards other callers
if (scratch.empty())
return {};
size_t len = strnlen_P(s, scratch.size() - 1);
progmem_memcpy(scratch.data(), s, len);
scratch[len] = '\0';
StringRef ref(scratch.data(), len);
scratch = scratch.subspan(len + 1);
return ref;
#else
return StringRef(s);
#endif
}
ListEntitiesServicesResponse UserServiceStatic::encode_list_service_response_(
std::span<const enums::ServiceArgType> arg_types, std::span<char> scratch) const {
ListEntitiesServicesResponse msg;
msg.name = this->str_(0, scratch);
msg.key = this->key_;
msg.supports_response = this->supports_response_;
#ifdef USE_API_USER_DEFINED_ACTION_METADATA
msg.description = this->str_(1, scratch);
#endif
msg.args.init(arg_types.size());
for (size_t i = 0; i < arg_types.size(); i++) {
size_t base = USER_ACTION_HEADER_STRINGS + i * USER_ACTION_ARG_STRINGS;
auto &arg = msg.args.emplace_back();
arg.type = arg_types[i];
arg.name = this->str_(base, scratch);
#ifdef USE_API_USER_DEFINED_ACTION_METADATA
arg.description = this->str_(base + 1, scratch);
arg.example = this->str_(base + 2, scratch);
#endif
}
return msg;
}
template<> bool get_execute_arg_value<bool>(const ExecuteServiceArgument &arg) { return arg.bool_; }
template<> int32_t get_execute_arg_value<int32_t>(const ExecuteServiceArgument &arg) {
if (arg.legacy_int != 0)