starting audio player

backend/player/player.go

@@ -0,0 +1,58 @@
+package player
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"time"
+
+	"github.com/gopxl/beep/mp3"
+	"github.com/gopxl/beep/speaker"
+)
+
+type Player struct {
+	ctx   context.Context
+	state PlayerState
+}
+
+type PlayerState int
+
+const (
+	Playing PlayerState = iota
+	Paused
+	Stopped
+)
+
+func NewPlayer() *Player {
+	return &Player{}
+}
+
+func (p *Player) Init(ctx context.Context) {
+	p.ctx = ctx
+	p.state = Stopped
+}
+
+func (p *Player) ChangeState(desiredState PlayerState) error {
+	return nil
+}
+
+func (p *Player) Play() error {
+	f, err := os.Open("test_data/music_library_test/03 anything.mp3")
+	if err != nil {
+		return fmt.Errorf("Failed to open file %w", err)
+	}
+
+	streamer, format, err := mp3.Decode(f)
+	if err != nil {
+		return fmt.Errorf("Failed to decode mp3 %w", err)
+	}
+	defer streamer.Close()
+
+	err = speaker.Init(format.SampleRate, format.SampleRate.N(time.Second/10))
+	if err != nil {
+		return fmt.Errorf("Failed to initialize speaker %w", err)
+	}
+	speaker.Play(streamer)
+	select {}
+	return nil
+}

frontend/index.html

@@ -46,6 +46,11 @@
             <label id="library-directory-label">No Library Directory Selected</label>
             <button onclick="dirPicker()">Choose Directory...</button>
         </section>
+        <section>
+            <button onclick="onPlayPauseButtonClick()">
+                <img src="/src/assets/images/icons/music/play-solid.svg" id="playPauseButtonIcon"/>
+            </button>
+        </section>
     </main>
     <footer></footer>
 </body>

frontend/src/main.js

@@ -1,8 +1,10 @@
 import './pico.css';
-import { DirectoryPicker, GetLibraryDir } from '../wailsjs/go/main/App';
+import { DirectoryPicker, GetLibraryDir} from '../wailsjs/go/main/App';
+import { Play } from '../wailsjs/go/player/Player';
 
 
 let libraryDirectoryLabel = document.getElementById("library-directory-label");
+let playPauseButtonIcon = document.getElementById("playPauseButtonIcon");
 
 GetLibraryDir().
   then((result) => {
@@ -10,6 +12,21 @@ GetLibraryDir().
     window.updateLibraryDirLabel(result);
   }).catch((err) => { console.error(err) })
 
+window.onPlayPauseButtonClick = function() {
+  try {
+    Play().then((result) => {
+      console.log(result)
+      playPauseButton.setAttribute("src", "/src/assets/images/icons/music/pause-solid.svg")
+    }).catch((err) => {
+      console.log("There is an error with playing")
+      console.error(err);
+    });
+  }
+  catch (err) {
+    console.error(err);
+  }
+}
+
 window.dirPicker = function() {
   var dir;
   try {

frontend/wailsjs/go/player/Player.d.ts

@@ -0,0 +1,7 @@
+// Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
+// This file is automatically generated. DO NOT EDIT
+import {context} from '../models';
+
+export function Init(arg1:context.Context):Promise<void>;
+
+export function Play():Promise<void>;

frontend/wailsjs/go/player/Player.js

@@ -0,0 +1,11 @@
+// @ts-check
+// Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
+// This file is automatically generated. DO NOT EDIT
+
+export function Init(arg1) {
+  return window['go']['player']['Player']['Init'](arg1);
+}
+
+export function Play() {
+  return window['go']['player']['Player']['Play']();
+}

go.mod

@@ -4,14 +4,18 @@ go 1.23
 
 require (
 	github.com/BurntSushi/toml v1.5.0
+	github.com/gopxl/beep v1.4.1
 	github.com/wailsapp/wails/v2 v2.10.1
 )
 
 require (
 	github.com/bep/debounce v1.2.1 // indirect
+	github.com/ebitengine/oto/v3 v3.1.0 // indirect
+	github.com/ebitengine/purego v0.7.1 // indirect
 	github.com/go-ole/go-ole v1.3.0 // indirect
 	github.com/godbus/dbus/v5 v5.1.0 // indirect
 	github.com/google/uuid v1.6.0 // indirect
+	github.com/hajimehoshi/go-mp3 v0.3.4 // indirect
 	github.com/jchv/go-winloader v0.0.0-20210711035445-715c2860da7e // indirect
 	github.com/labstack/echo/v4 v4.13.3 // indirect
 	github.com/labstack/gommon v0.4.2 // indirect

go.sum

@@ -4,12 +4,21 @@ github.com/bep/debounce v1.2.1 h1:v67fRdBA9UQu2NhLFXrSg0Brw7CexQekrBwDMM8bzeY=
 github.com/bep/debounce v1.2.1/go.mod h1:H8yggRPQKLUhUoqrJC1bO2xNya7vanpDl7xR3ISbCJ0=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/ebitengine/oto/v3 v3.1.0 h1:9tChG6rizyeR2w3vsygTTTVVJ9QMMyu00m2yBOCch6U=
+github.com/ebitengine/oto/v3 v3.1.0/go.mod h1:IK1QTnlfZK2GIB6ziyECm433hAdTaPpOsGMLhEyEGTg=
+github.com/ebitengine/purego v0.7.1 h1:6/55d26lG3o9VCZX8lping+bZcmShseiqlh2bnUDiPA=
+github.com/ebitengine/purego v0.7.1/go.mod h1:ah1In8AOtksoNK6yk5z1HTJeUkC1Ez4Wk2idgGslMwQ=
 github.com/go-ole/go-ole v1.3.0 h1:Dt6ye7+vXGIKZ7Xtk4s6/xVdGDQynvom7xCFEdWr6uE=
 github.com/go-ole/go-ole v1.3.0/go.mod h1:5LS6F96DhAwUc7C+1HLexzMXY1xGRSryjyPPKW6zv78=
 github.com/godbus/dbus/v5 v5.1.0 h1:4KLkAxT3aOY8Li4FRJe/KvhoNFFxo0m6fNuFUO8QJUk=
 github.com/godbus/dbus/v5 v5.1.0/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/gopxl/beep v1.4.1 h1:WqNs9RsDAhG9M3khMyc1FaVY50dTdxG/6S6a3qsUHqE=
+github.com/gopxl/beep v1.4.1/go.mod h1:A1dmiUkuY8kxsvcNJNUBIEcchmiP6eUyCHSxpXl0YO0=
+github.com/hajimehoshi/go-mp3 v0.3.4 h1:NUP7pBYH8OguP4diaTZ9wJbUbk3tC0KlfzsEpWmYj68=
+github.com/hajimehoshi/go-mp3 v0.3.4/go.mod h1:fRtZraRFcWb0pu7ok0LqyFhCUrPeMsGRSVop0eemFmo=
+github.com/hajimehoshi/oto/v2 v2.3.1/go.mod h1:seWLbgHH7AyUMYKfKYT9pg7PhUu9/SisyJvNTT+ASQo=
 github.com/jchv/go-winloader v0.0.0-20210711035445-715c2860da7e h1:Q3+PugElBCf4PFpxhErSzU3/PY5sFL5Z6rfv4AbGAck=
 github.com/jchv/go-winloader v0.0.0-20210711035445-715c2860da7e/go.mod h1:alcuEEnZsY1WQsagKhZDsoPCRoOijYqhZvPwLG0kzVs=
 github.com/labstack/echo/v4 v4.13.3 h1:pwhpCPrTl5qry5HRdM5FwdXnhXSLSY+WE+YQSeCaafY=
@@ -67,6 +76,7 @@ golang.org/x/net v0.35.0/go.mod h1:EglIi67kWsHKlRzzVMUD93VMSWGFOMSZgxFjparz1Qk=
 golang.org/x/sys v0.0.0-20200810151505-1b9f1253b3ed/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20220712014510-0a85c31ab51e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=

main.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 
 	"yellowjacket/backend/config"
+	"yellowjacket/backend/player"
 
 	"github.com/wailsapp/wails/v2"
 	"github.com/wailsapp/wails/v2/pkg/logger"
@@ -23,6 +24,7 @@ func main() {
 	}
 
 	app := NewApp(config)
+	player := player.NewPlayer()
 
 	// Create application with options
 	err = wails.Run(&options.App{
@@ -32,13 +34,15 @@ func main() {
 		AssetServer: &assetserver.Options{
 			Assets: assets,
 		},
-		LogLevel: logger.INFO,
+		LogLevel:         logger.TRACE,
 		BackgroundColour: &options.RGBA{R: 27, G: 38, B: 54, A: 1},
 		OnStartup: func(ctx context.Context) {
 			app.startup(ctx)
+			player.Init(ctx)
 		},
 		Bind: []interface{}{
 			app,
+			player,
 		},
 	})
 	if err != nil {