Support Audi and Tesla vehicle APIs (#20)

api/api.go

@@ -55,7 +55,9 @@ type ChargeRater interface {
 	ChargedEnergy() (float64, error)
 }
 
-// SoC represents the EV battery's state
-type SoC interface {
+// Vehicle represents the EV and it's battery
+type Vehicle interface {
+	Title() string
+	Capacity() int64
 	ChargeState() (float64, error)
 }

api/decoder.go

@@ -0,0 +1,24 @@
+package api
+
+import (
+	"github.com/mitchellh/mapstructure"
+)
+
+// DecodeOther decodes string map into target configuration
+func DecodeOther(log *Logger, other map[string]interface{}, cc interface{}) {
+	decoderConfig := &mapstructure.DecoderConfig{
+		Result:           cc,
+		ErrorUnused:      true,
+		WeaklyTypedInput: true,
+		DecodeHook:       mapstructure.StringToTimeDurationHookFunc(),
+	}
+
+	decoder, err := mapstructure.NewDecoder(decoderConfig)
+	if err != nil {
+		log.FATAL.Fatal(err)
+	}
+
+	if err := decoder.Decode(other); err != nil {
+		log.FATAL.Fatal(err)
+	}
+}