feat: add yutong mqtt ingestion

go/vehicle-gateway/cmd/gateway/main.go

@@ -68,6 +68,28 @@ func main() {
 			}
 		}()
 	}
+	if envBool("YUTONG_MQTT_ENABLED", false) {
+		client, err := gateway.NewMQTTClient(gateway.MQTTClientConfig{
+			EndpointName: env("YUTONG_MQTT_ENDPOINT", "yutong"),
+			Broker:       env("YUTONG_MQTT_URI", ""),
+			ClientID:     env("YUTONG_MQTT_CLIENT_ID", "lingniu-go-yutong-mqtt"),
+			Username:     env("YUTONG_MQTT_USERNAME", ""),
+			Password:     env("YUTONG_MQTT_PASSWORD", ""),
+			Topics:       splitCSV(env("YUTONG_MQTT_TOPICS", env("YUTONG_MQTT_TOPIC", "/ytforward/shln/+"))),
+			QoS:          byte(envInt("YUTONG_MQTT_QOS", 2)),
+			Sink:         sink,
+			Logger:       logger,
+		})
+		if err != nil {
+			logger.Error("build yutong mqtt client failed", "error", err)
+			os.Exit(1)
+		}
+		if err := client.Start(ctx); err != nil {
+			logger.Error("start yutong mqtt client failed", "error", err)
+			os.Exit(1)
+		}
+		logger.Info("yutong mqtt client started")
+	}
 
 	logger.Info("vehicle gateway started")
 	select {
@@ -122,6 +144,14 @@ func envInt(key string, fallback int) int {
 	return out
 }
 
+func envBool(key string, fallback bool) bool {
+	value := strings.ToLower(strings.TrimSpace(os.Getenv(key)))
+	if value == "" {
+		return fallback
+	}
+	return value == "1" || value == "true" || value == "yes" || value == "on"
+}
+
 func splitCSV(value string) []string {
 	var out []string
 	for _, item := range strings.Split(value, ",") {