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#include "./relay.h"
#include <homekit/relay.h>
#include <homekit/logging.h>
namespace homekit::mqtt {
static const char TOPIC_RELAY_SWITCH[] = "relay/switch";
void MqttRelayModule::init(Mqtt &mqtt) {
String topic(TOPIC_RELAY_SWITCH);
mqtt.subscribeModule(topic, this, 1);
}
void MqttRelayModule::tick(homekit::mqtt::Mqtt& mqtt) {}
void MqttRelayModule::handlePayload(Mqtt& mqtt, String& topic, uint16_t packetId, const uint8_t *payload, size_t length, size_t index, size_t total) {
if (topic != TOPIC_RELAY_SWITCH)
return;
if (length != sizeof(MqttRelaySwitchPayload)) {
PRINTF("error: size of payload (%ul) does not match expected (%ul)\n",
length, sizeof(MqttRelaySwitchPayload));
return;
}
auto pd = reinterpret_cast<const struct MqttRelaySwitchPayload*>(payload);
if (strncmp(pd->secret, MQTT_SECRET, sizeof(pd->secret)) != 0) {
PRINTLN("error: invalid secret");
return;
}
if (pd->state == 1) {
PRINTLN("mqtt: turning relay on");
relay::on();
} else if (pd->state == 0) {
PRINTLN("mqtt: turning relay off");
relay::off();
} else {
PRINTLN("error: unexpected state value");
}
}
}
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