#pragma once

#include <driver/rmt_tx.h>
#include <stddef.h>
#include <stdint.h>

#include "esphome/core/defines.h"

namespace esphome::ratgdo {

enum RatgdoUARTConfig {
  RATGDO_UART_8N1,
  RATGDO_UART_8E1,
};

class RatgdoUART {
 public:
  RatgdoUART();
  ~RatgdoUART();

  void begin(int baud, RatgdoUARTConfig config, int rx_pin, int tx_pin,
             bool invert);
  void write(const uint8_t* data, size_t len);
  void write(uint8_t data);
  int available();
  int read();
  void enableIntTx(bool enable) {}
  void enableAutoBaud(bool enable) {}
  int baudRate() { return this->baud_; }

  // Sends the SecPlus 2.0 preamble using RMT
  void transmit_secplus2_preamble();

  void on_shutdown();

 private:
  // Pointers (4 bytes on 32-bit)
  rmt_channel_handle_t rmt_chan_handle_{nullptr};
  rmt_encoder_handle_t rmt_copy_encoder_{nullptr};

  // 4-byte members
  int tx_pin_{-1};
  int rx_pin_{-1};
  int baud_{9600};
  int uart_num_{-1};
  int rmt_channel_id_{0};

  // 1-byte members packed at the end
  bool inverted_{true};
  bool is_initialized_{false};
};

}  // namespace esphome::ratgdo