Adds persistence

cmd/main.go

@@ -1,13 +1,15 @@
 package main
 
 import (
-	"time"
+//	"time"
-
 	marlinbox "github.com/itsscb/marlinbox"
 )
 
 func main() {
 	mb := marlinbox.New("playlist.json")
 	mb.Run()
-	time.Sleep(time.Minute * 5)
+/*	for {
+		time.Sleep(time.Second * 1)
+	}
+*/
 }

cmd/playlist.json

@@ -3,25 +3,25 @@
 "volume": 1.0,   
 "playlist": [
         {
-            "id": "0002693373",
+            "id": "0004106397",
-            "file": "./music/ACDC - Back In Black.mp3"
+            "file": "./music/Badewannensitzpirat.mp3"
         },
         {
-            "id": "0011415256",
+            "id": "0017411992",
-            "file": "./music/ACDC - TNT.mp3"
+            "file": "./music/Leo_Lausemaus_Titelsong.mp3"
         },
         {
-            "id": "0011394336",
+            "id": "0017356608",
-            "file": "./music/ACDC - Thunderstruck.mp3"
+            "file": "./music/Party_im_Schneckenhaus.mp3"
         }
     ],
 "controlcards": [
         {
-            "id": "0011462127",
+            "id": "0017458863",
             "function": "vol+"
         },
         {
-            "id": "0011394129",
+            "id": "0017356401",
             "function": "vol-"
         }
     ]

marlinbox.go

@@ -2,7 +2,6 @@ package marlinbox
 
 import (
 	"encoding/json"
-	"errors"
 	"fmt"
 	"log"
 	"os"
@@ -16,14 +15,15 @@ import (
 type MarlinBox struct {
 	DeviceName      string             `json:"devicename"`
 	DevicePath      string             `json:"devicepath,omitempty"`
-	CurrentID       string
+	ConfigPath      string             `json:"configpath,omitempty"`
-	Volume          float64        `json:"volume,omitempty"`
+	CurrentID       string             `json:"-"`
+	Volume          float64            `json:"-"`
 	Playlist        []*PlayCard        `json:"playlist,omitempty"`
 	ControlCards    []*ControlCard     `json:"controlcards,omitempty"`
-	Device          *evdev.InputDevice
+	Device          *evdev.InputDevice `json:"-"`
-	CurrentPlayCard *PlayCard
+	CurrentPlayCard *PlayCard          `json:"-"`
-	Player          oto.Player
+	Player          oto.Player         `json:"-"`
-	PlayerContext   *oto.Context
+	PlayerContext   *oto.Context       `json:"-"`
 }
 
 type RFIDCard struct {
@@ -75,6 +75,9 @@ func New(path string) *MarlinBox {
 	}
 
 	devices, err := evdev.ListInputDevices()
+	if err != nil {
+		log.Panicf("Error listing Input Devices: %s", err)
+	}
 
 	for _, dev := range devices {
 		if dev.Name == mb.DeviceName {
@@ -86,6 +89,8 @@ func New(path string) *MarlinBox {
 		panic("Device not found")
 	}
 
+	mb.ConfigPath = path
+
 	return mb
 }
 
@@ -97,7 +102,7 @@ func (mb *MarlinBox) Run() {
 	}
 	mb.Device.Grab()
 
-	go func() {
+	//	go func() {
 	for {
 		events, err := mb.Device.Read()
 		if err != nil {
@@ -113,29 +118,21 @@ func (mb *MarlinBox) Run() {
 				continue
 			}
 
-				if val == "ENTER" {
+			if val == "ENTER" || len(mb.CurrentID) == 9 {
-					err := mb.GetCurrentCard()
+				if val != "ENTER" {
-					if err != nil {
+					mb.CurrentID += val
-						log.Println(err)
 				}
-					fmt.Println(mb.CurrentPlayCard)
+				mb.GetCurrentCard()
 				mb.CurrentID = ""
-					// err =
-					// if err != nil {
-					// 	log.Println(err)
-					// 	panic(err)
-					// }
 				continue
 			}
 
 			mb.CurrentID += val
 		}
 	}
-	}()
 }
 
-func (mb *MarlinBox) GetCurrentCard() error {
+func (mb *MarlinBox) GetCurrentCard() {
-	fmt.Println(mb.ControlCards)
 	for _, c := range mb.ControlCards {
 		if mb.CurrentID == c.ID {
 			switch c.Function {
@@ -146,13 +143,12 @@ func (mb *MarlinBox) GetCurrentCard() error {
 				}
 			case "vol-":
 				fmt.Println("vol-")
-				if mb.Volume > 0 {
+				if mb.Volume >= 0.2 {
 					mb.Volume = mb.Volume - 0.2
 				}
 			default:
-				return nil
+				return
 			}
-			return nil
 		}
 	}
 	for _, c := range mb.Playlist {
@@ -162,10 +158,29 @@ func (mb *MarlinBox) GetCurrentCard() error {
 				mb.Player.Reset()
 			}
 			mb.Play()
-			return nil
+			return
 		}
 	}
-	return errors.New("Card not found: " + mb.CurrentID)
+	mb.Playlist = append(mb.Playlist, &PlayCard{
+		RFIDCard: RFIDCard{
+			ID: mb.CurrentID,
+		},
+	})
+
+	config, err := json.MarshalIndent(&mb, "", " ")
+	if err != nil {
+		log.Printf("\nCould not marshal output '%+v': %s", config, err)
+	}
+
+	jsonFile, err := os.Create(mb.ConfigPath)
+	if err != nil {
+		log.Printf("\nCould not create json-File '%s': %s", mb.ConfigPath, err)
+	}
+
+	_, err = jsonFile.Write(config)
+	if err != nil {
+		log.Printf("\nCould not write json-File '%s': %s", mb.ConfigPath, err)
+	}
 }
 
 func (mb *MarlinBox) Play() {

playlist.json

@@ -0,0 +1,65 @@
+{
+ "devicename": "Sycreader RFID Technology Co., Ltd SYC ID\u0026IC USB Reader",
+ "devicepath": "/dev/input/event1",
+ "configpath": "playlist.json",
+ "playlist": [
+  {
+   "id": "0004106397",
+   "file": "./music/01-01-Traditional-Der_Mond_ist_aufgegangen-320.mp3"
+  },
+  {
+   "id": "0017411992",
+   "file": "./music/01-02-Heino_Gaze-La-Le-Lu-320.mp3"
+  },
+  {
+   "id": "0017356608",
+   "file": "./music/01-01-Chris_Buseck-Party_im_Schneckenhaus-320.mp3"
+},
+{
+    "id": "0004148198",
+    "file": "./music/01-01-Heiko_Russe-Leo_Lausemaus_Titelsong-320.mp3"
+},
+{
+    "id": "0008323849",
+    "file": "./music/01-05-Markus_Schurjann-Ich_bin_ein_Einhorn-320.mp3"
+  },
+  {
+   "id": "0004152218",
+   "file": "./music/01-06-Traditional-Die_Rader_vom_Bus-320.mp3"
+  },
+  {
+   "id": "0012528320",
+   "file": "./music/01-06-Traditional-Schlaf_Kindlein_schlaf-320.mp3"
+  },
+  {
+   "id": "0008324420",
+   "file": "./music/01-07-Georges_Moustaki-Das_rote_Pferd-320.mp3"
+  },
+  {
+   "id": "0008324422",
+   "file": "./music/01-09-Markus_Schurjann-Wer_hat_den_Keks_aus_der_Dose_geklaut-320.mp3"
+  },
+  {
+   "id": "0008324475",
+   "file": "./music/01-10-Traditional-Funf_kleine_Fische-320.mp3"
+  },
+  {
+   "id": "0005409503",
+   "file": "./music/01-11-Traditional-Old_Mac_Donald_Had_a_Farm-320.mp3"
+  },
+  {
+   "id": "0004148375",
+   "file": "./music/01-14-Traditional-Meine_Oma_fahrt_im_Huhnerstall_Motorrad-320.mp3"
+  }
+ ],
+ "controlcards": [
+  {
+   "id": "0017458863",
+   "function": "vol+"
+  },
+  {
+   "id": "0017356401",
+   "function": "vol-"
+  }
+ ]
+}