Add camera control

Signed-off-by: Thomas Klaehn <thomas.klaehn@perinet.io>

src/internal/apiservice/printer/printer.go

@@ -112,9 +112,21 @@ func handle_patch_printerstate(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	if state.State == StateOn {
-		octoprint.ReStart()
+		err = octoprint.ReStart()
+		if err != nil {
+			logger.Print(err)
+			w.WriteHeader(http.StatusInternalServerError)
+			w.Write(json.RawMessage(fmt.Sprintf(`{"error": "%s"}`, err.Error())))
+			return
+		}
 	} else {
-		octoprint.Stop()
+		err := octoprint.Stop()
+		if err != nil {
+			logger.Print(err)
+			w.WriteHeader(http.StatusInternalServerError)
+			w.Write(json.RawMessage(fmt.Sprintf(`{"error": "%s"}`, err.Error())))
+			return
+		}
 	}
 	w.WriteHeader(http.StatusOK)
 }

src/internal/app/process/octoprint/octoprint.go

@@ -19,7 +19,7 @@ type DockerState struct {
 const (
 	start_cmd  = "docker-compose -f /etc/printctrl/octoprint/docker-compose.yml up -d"
 	stop_cmd   = "docker-compose -f /etc/printctrl/octoprint/docker-compose.yml down"
-	status_cmd = "docker ps -a"
+	status_cmd = "docker ps"
 )
 
 var (
@@ -30,21 +30,22 @@ func init() {
 	logger.SetFlags(log.Llongfile | log.Ltime)
 }
 
-func Start() {
+func Start() error {
 	p := process.NewProcess(start_cmd)
-	p.Start()
+	return p.Start()
-	p.Wait()
 }
 
-func Stop() {
+func Stop() error {
 	p := process.NewProcess(stop_cmd)
-	p.Start()
+	return p.Start()
-	p.Wait()
 }
 
-func ReStart() {
+func ReStart() error {
-	Stop()
+	err := Stop()
-	Start()
+	if err != nil {
+		logger.Print(err)
+	}
+	return Start()
 }
 
 func Status() DockerState {
@@ -57,7 +58,7 @@ func Status() DockerState {
 			std := <-p.StdoutChannel
 			if strings.Contains(std, "octoprint/octoprint") {
 				res := strings.Split(std, "   ")
-				if len(res) < 7 {
+				if len(res) != 7 {
 					logger.Printf("Unkown number pf parameters (%d vs. 7)", len(res))
 				} else {
 					state.ContainerID = res[0]
@@ -66,11 +67,7 @@ func Status() DockerState {
 					state.Created = res[3]
 					state.Status = res[4]
 					state.Ports = res[5]
-					if len(res) == 7 {
+					state.Name = res[6]
-						state.Name = res[6]
-					} else if len(res) == 9 {
-						state.Name = res[8]
-					}
 				}
 			}
 		}

src/main.go

@@ -36,7 +36,7 @@ func main() {
 	apiservice_printer.AddHandler()
 	apiservice_relay.AddHandler()
 
-	port := ":80"
+	port := ":8083"
 	http.Handle("/", http.FileServer(http.Dir(webui_path)))
 	logger.Fatal(http.ListenAndServe(port, nil))
 }