Toyota: support range units (#27371)

vehicle/toyota/provider.go

@@ -27,5 +27,8 @@ func (v *Provider) Soc() (float64, error) {
 // Range implements the api.VehicleRange interface
 func (v *Provider) Range() (int64, error) {
 	res, err := v.status()
-	return int64(res.Payload.EvRangeWithAc.Value), err
+	if err != nil {
+		return 0, err
+	}
+	return res.Payload.EvRangeWithAc.ValueInKilometers()
 }

vehicle/toyota/types.go

@@ -22,11 +22,26 @@ type Status struct {
 	} `json:"payload"`
 }
 
+const kmPerMile = 1.609344
+
 type EvRange struct {
 	Unit  string  `json:"unit"`
 	Value float64 `json:"value"`
 }
 
+func (e EvRange) ValueInKilometers() (int64, error) {
+	u := strings.ToLower(strings.TrimSpace(e.Unit))
+
+	switch u {
+	case "km":
+		return int64(e.Value), nil
+	case "mi":
+		return int64(e.Value * kmPerMile), nil
+	default:
+		return 0, fmt.Errorf("unsupported unit type: %s", e.Unit)
+	}
+}
+
 type Auth struct {
 	AuthID    string         `json:"authId"`
 	Callbacks []AuthCallback `json:"callbacks"`