removed URL parameter from GetStreamInstant

main.go

@@ -54,7 +54,7 @@ func (server Server) stream(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	img := stream.GetStreamInstant(URL)
+	img := stream.GetStreamInstant()
 	mat, err := gocv.IMDecode(img, gocv.IMReadGrayScale)
 	if err != nil {
 		log.Fatal("Could not IMDecode img")

stream.go

@@ -28,22 +28,26 @@ func NewStream(URL string) Stream {
 		Base64:   base64,
 		Interval: 5000,
 	}
-	os.MkdirAll(stream.GetStreamStoreDirPath(), os.ModePerm)
 	stream.WriteStreamJSON()
 	return stream
 }
 
 // Update calls itself every Interval milliseconds
-func (s Stream) Update() { // TODO make this not overflow, other thing calls this ?
+func (s Stream) Update() {
 	log.Print("Update:", s.URL)
-	// TODO make func that does getstreaminstant and savestreaminstant
-	time.Sleep(time.Duration(s.Interval) * time.Millisecond)
-	go s.Update()
+}
+
+// UpdateInterval calls Update() every interval
+func (s Stream) UpdateInterval() {
+	for {
+		s.Update()
+		time.Sleep(time.Duration(s.Interval) * time.Millisecond)
+	}
 }
 
 // GetStreamInstant http.Get(URL) and returns the response
-func (s Stream) GetStreamInstant(URL string) []byte {
-	resp, err := http.Get(URL)
+func (s Stream) GetStreamInstant() []byte {
+	resp, err := http.Get(s.URL)
 	if err != nil {
 		log.Fatal(err)
 	}
@@ -90,6 +94,9 @@ func (s Stream) GetStreamJSONPath() string {
 
 // WriteStreamJSON writes the Stream struct to GetStreamJSONPath()
 func (s Stream) WriteStreamJSON() {
+	if !FileExists(s.GetStreamStoreDirPath()) {
+		os.MkdirAll(s.GetStreamStoreDirPath(), os.ModePerm)
+	}
 	file, _ := json.MarshalIndent(s, "", "")
 	_ = ioutil.WriteFile(s.GetStreamJSONPath(), file, 0644)
 }