mqtt_switch.cpp

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#include "mqtt_switch.h"
#include "esphome/core/log.h"
 
#include "mqtt_const.h"
 
#ifdef USE_MQTT
#ifdef USE_SWITCH
 
namespace esphome::mqtt {
 
static const char *const TAG = "mqtt.switch";
 
using namespace esphome::switch_;
 
MQTTSwitchComponent::MQTTSwitchComponent(switch_::Switch *a_switch) : switch_(a_switch) {}
 
void MQTTSwitchComponent::setup() {
  this->subscribe(this->get_command_topic_(), [this](const std::string &topic, const std::string &payload) {
    switch (parse_on_off(payload.c_str())) {
      case PARSE_ON:
        this->switch_->turn_on();
        break;
      case PARSE_OFF:
        this->switch_->turn_off();
        break;
      case PARSE_TOGGLE:
        this->switch_->toggle();
        break;
      case PARSE_NONE:
      default:
        ESP_LOGW(TAG, "'%s': Received unknown status payload: %s", this->friendly_name_().c_str(), payload.c_str());
        this->status_momentary_warning("state", 5000);
        break;
    }
  });
  this->switch_->add_on_state_callback(
      [this](bool enabled) { this->defer("send", [this, enabled]() { this->publish_state(enabled); }); });
}
void MQTTSwitchComponent::dump_config() {
  ESP_LOGCONFIG(TAG, "MQTT Switch '%s': ", this->switch_->get_name().c_str());
  LOG_MQTT_COMPONENT(true, true);
}
 
MQTT_COMPONENT_TYPE(MQTTSwitchComponent, "switch")
const EntityBase *MQTTSwitchComponent::get_entity() const { return this->switch_; }
void MQTTSwitchComponent::send_discovery(JsonObject root, mqtt::SendDiscoveryConfig &config) {
  // NOLINTNEXTLINE(clang-analyzer-cplusplus.NewDeleteLeaks) false positive with ArduinoJson
  if (this->switch_->assumed_state()) {
    root[MQTT_OPTIMISTIC] = true;
  }
}
bool MQTTSwitchComponent::send_initial_state() { return this->publish_state(this->switch_->state); }
 
bool MQTTSwitchComponent::publish_state(bool state) {
  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
  const char *state_s = state ? "ON" : "OFF";
  return this->publish(this->get_state_topic_to_(topic_buf), state_s);
}
 
}  // namespace esphome::mqtt
 
#endif
#endif  // USE_MQTT