Ajout Thermostat

Thermostat/src/mqtt_handler.cpp

@@ -0,0 +1,33 @@
+#include "mqtt_handler.h"
+#include "thermostat.h"
+#include <ArduinoJson.h>
+
+String mqtt_device_id = "thermo1";
+String mqtt_temp_topic = "home/room/temperature/thermo1";
+
+void setup_mqtt(PubSubClient& client) {
+    // Setup MQTT connection, subscribe to temp topic
+    client.setCallback(mqtt_callback);
+    client.subscribe(mqtt_temp_topic.c_str());
+}
+
+void mqtt_loop(PubSubClient& client) {
+    if (!client.connected()) {
+        // reconnect logic here
+    }
+    client.loop();
+}
+
+void mqtt_publish_state(PubSubClient& client, ThermostatMode mode, float targetTemp, bool heating) {
+    StaticJsonDocument<128> doc;
+    doc["mode"] = mode;
+    doc["target"] = targetTemp;
+    doc["heating"] = heating;
+    char buf[128];
+    size_t n = serializeJson(doc, buf);
+    client.publish(("home/thermostat/" + mqtt_device_id + "/state").c_str(), buf, n);
+}
+
+void mqtt_callback(char* topic, byte* payload, unsigned int length) {
+    // Handle incoming MQTT messages (e.g., set mode, set preset, etc.)
+}