Add carwings climater (#693)

vehicle/carwings.go

@@ -17,6 +17,7 @@ type CarWings struct {
 	region         string
 	session        *carwings.Session
 	chargeStateG   func() (float64, error)
+	hvacG          func() (interface{}, error)
 }
 
 func init() {
@@ -47,29 +48,60 @@ func NewCarWingsFromConfig(other map[string]interface{}) (api.Vehicle, error) {
 	}
 
 	v.chargeStateG = provider.NewCached(v.chargeState, cc.Cache).FloatGetter()
+	v.hvacG = provider.NewCached(v.hvacAPI, cc.Cache).InterfaceGetter()
 
 	return v, nil
 }
 
+// Init new carwings session
+func (v *CarWings) initSession() error {
+	v.session = &carwings.Session{
+		Region: v.region,
+	}
+
+	return v.session.Connect(v.user, v.password)
+}
+
 // chargeState implements the api.Vehicle interface
 func (v *CarWings) chargeState() (float64, error) {
 	if v.session == nil {
-		session := &carwings.Session{
-			Region: v.region,
+		if err := v.initSession(); err != nil {
+			return 0, api.ErrNotAvailable
 		}
-
-		if err := session.Connect(v.user, v.password); err != nil {
-			return 0, err
-		}
-
-		v.session = session
 	}
 
 	bs, err := v.session.BatteryStatus()
 	return float64(bs.StateOfCharge), err
 }
 
+// hvacAPI provides hvac-status api response
+func (v *CarWings) hvacAPI() (interface{}, error) {
+	if v.session == nil {
+		if err := v.initSession(); err != nil {
+			return 0, api.ErrNotAvailable
+		}
+	}
+
+	return v.session.ClimateControlStatus()
+}
+
 // SoC implements the api.Vehicle interface
 func (v *CarWings) SoC() (float64, error) {
 	return v.chargeStateG()
 }
+
+// Climater implements the api.Vehicle.Climater interface
+func (v *CarWings) Climater() (active bool, outsideTemp float64, targetTemp float64, err error) {
+	res, err := v.hvacG()
+	if res, ok := res.(carwings.ClimateStatus); err == nil && ok {
+		active = res.Running
+
+		targetTemp = float64(res.Temperature)
+
+		outsideTemp = 0 //fixed value
+
+		return active, outsideTemp, targetTemp, nil
+	}
+
+	return false, 0, 0, api.ErrNotAvailable
+}