Initial cloud-services repo - gateway service + pkg modules

pkg/vod_decoder/vod_decoder.go

@@ -0,0 +1,33 @@
+package vod_decoder
+
+import (
+	"encoding/hex"
+	"log"
+)
+
+// VOD coding information
+// https://fiskerinc-my.sharepoint.com/:x:/p/bdoan/EQCJFiYi3dlIgyQ9ZhXgHC4BTW6r_f677rTa2zSxgBkUmg?email=aandrews%40fiskerinc.com&wdOrigin=TEAMS-MAGLEV.p2p_ns.rwc&wdExp=TEAMS-TREATMENT&wdhostclicktime=1704913173133&web=1
+// The coding information is 2 bytes off of what the cloud has, as we do not have a starting DID.
+// Given a VOD, going to return either Right hand drive, or left hand drive
+func GetDriverSideFromVOD(vod string)(driverSide string, ok bool){
+	hexVOD := decodeVOD(vod)
+	if len(hexVOD) < 8 {
+		return "INVALID", false
+	}
+	b := hexVOD[7]
+	switch b{
+	case 0x00:
+		return "LEFT", true
+	case 0x01:
+		return "RIGHT", true
+	default:
+		badHexValue := hex.EncodeToString([]byte{b})
+		log.Printf("Received an invalid left/right side drive value from vod: %s", badHexValue)
+		return "INVALID", false
+	}
+}
+
+func decodeVOD(vod string)(hexVOD []byte){
+	hexVOD, _ = hex.DecodeString(vod)
+	return
+}