Add Dockerfile for building JS output

.gitignore

@@ -7,6 +7,7 @@ cookies.txt
 config
 css/*.min.css
 js/*.min.js
+cache
 
 bin
 ambiance/*.mp3

bot.go

@@ -11,10 +11,13 @@ import (
 
 	"github.com/bwmarrin/discordgo"
 	"github.com/dpup/gohubbub"
+	"github.com/faiface/beep"
+	"github.com/gohugoio/hugo/cache/filecache"
 	"github.com/jackc/pgx/v5"
 	"github.com/julienschmidt/httprouter"
 	"github.com/kataras/go-events"
 	"github.com/r3labs/sse/v2"
+	"github.com/spf13/afero"
 	"github.com/spf13/viper"
 	"google.golang.org/api/youtube/v3"
 )
@@ -48,7 +51,7 @@ type App struct {
 	voice    *discordgo.VoiceConnection
 	youtube  *youtube.Service
 	queue    *Queue
-	ambiance *Queue
+	ambiance beep.Mixer
 	curamb   string
 	events   events.EventEmmiter
 	next     bool
@@ -60,9 +63,13 @@ type App struct {
 	playlist *Playlist
 	plm      *sync.RWMutex
 	hubbub   *gohubbub.Client
+	cache    *filecache.Cache
 }
 
 func main() {
+	bfs := afero.NewBasePathFs(afero.NewOsFs(), "cache")
+	app.cache = filecache.NewCache(bfs, 1*time.Hour, "")
+
 	app.plm = &sync.RWMutex{}
 	ticker := time.NewTicker(300 * time.Millisecond)
 

events.go

@@ -3,7 +3,6 @@ package main
 import (
 	"context"
 	"dndmusicbot/ffmpeg"
-	"dndmusicbot/loop"
 	discordspeaker "dndmusicbot/speaker"
 	"dndmusicbot/ytdl"
 	"encoding/json"
@@ -13,6 +12,7 @@ import (
 	"os"
 	"time"
 
+	"github.com/faiface/beep"
 	"github.com/faiface/beep/mp3"
 	"github.com/google/uuid"
 	"github.com/kataras/go-events"
@@ -20,14 +20,14 @@ import (
 )
 
 type SongInfo struct {
-	Playlist     uuid.UUID `json:"playlist"`
+	Playlist     uuid.UUID `json:"playlist,omitempty"`
-	PlaylistName string    `json:"playlistname"`
+	PlaylistName string    `json:"playlistname,omitempty"`
-	Title        string    `json:"current"`
+	Title        string    `json:"current,omitempty"`
-	Channel      string    `json:"channel"`
+	Channel      string    `json:"channel,omitempty"`
 	Position     int       `json:"position"`
-	Length       int       `json:"len"`
+	Length       int       `json:"len,omitempty"`
 	Pause        bool      `json:"pause"`
-	Song         string    `json:"song"`
+	Song         string    `json:"song,omitempty"`
 }
 
 var l = rate.Sometimes{Interval: 1 * time.Second}
@@ -39,8 +39,9 @@ func init() {
 	app.events.On("load_playlist", app.loadPlaylist)
 	app.events.On("add_playlist", app.addPlaylist)
 
-	app.events.On("preload_song", app.preloadSong)
+	//app.events.On("preload_song", app.preloadSong)
-	app.events.On("song_over", app.songOver)
+	app.events.On("song_over", app.songInfo)
+	app.events.On("song_start", app.songInfo)
 	//app.events.On("song_position", app.songPosition)
 
 	app.events.On("ambiance_play", app.ambiancePlay)
@@ -60,37 +61,15 @@ func (app *App) songInfoEvent(event string) map[string]interface{} {
 	msg := make(map[string]interface{})
 	msg["event"] = event
 
-	var title, channel string
-
-	switch current := app.queue.Current().(type) {
-	case *ffmpeg.PCM:
-		title = current.Player.Title
-		channel = current.Player.Channel
-	}
-
-	var plid uuid.UUID
-	var pltitle string
-
-	if app.playlist != nil {
-		plid = app.playlist.Id
-		pltitle = app.playlist.Title
-	}
-
-	var song string
-
-	if app.active != nil && len(app.active) > 0 {
-		song = app.active[app.plidx]
-	}
-
 	msg["payload"] = SongInfo{
-		Playlist:     plid,
+		Playlist:     app.queue.Current().Playlist.Id,
-		PlaylistName: pltitle,
+		PlaylistName: app.queue.Current().Playlist.Title,
-		Title:        title,
+		Title:        app.queue.Current().Title,
-		Channel:      channel,
+		Channel:      app.queue.Current().Channel,
-		Position:     app.queue.Position(),
+		Position:     0,
 		Length:       app.queue.Len(),
 		Pause:        !app.queue.IsPlaying(),
-		Song:         song,
+		Song:         app.queue.Current().VideoID,
 	}
 
 	return msg
@@ -128,11 +107,8 @@ func (app *App) ambiancePlay(payload ...interface{}) {
 
 	discordspeaker.Pause(false)
 	discordspeaker.Lock()
-	if app.ambiance.IsPlaying() {
+	app.ambiance.Clear()
-		app.ambiance.Reset()
+	loop := beep.Loop(-1, play)
-	}
-
-	loop := loop.Loop(-1, play)
 	app.ambiance.Add(loop)
 	discordspeaker.Unlock()
 
@@ -150,7 +126,7 @@ func (app *App) ambiancePlay(payload ...interface{}) {
 func (app *App) ambianceStop(payload ...interface{}) {
 	log.Println("Stopping ambiance")
 	discordspeaker.Lock()
-	app.ambiance.Reset()
+	app.ambiance.Clear()
 	discordspeaker.Unlock()
 
 	msg := make(map[string]interface{})
@@ -211,10 +187,8 @@ func (app *App) songPosition(payload ...interface{}) {
 		out := make(map[string]interface{})
 
 		msg["event"] = "song_position"
-		if app.queue != nil {
 		out["len"] = app.queue.Len()
 		out["position"] = app.queue.Position()
-		}
 
 		msg["payload"] = out
 		ws_msg <- msg
@@ -255,7 +229,7 @@ func (app *App) checkTimeleft(payload ...interface{}) {
 	}
 }
 
-func (app *App) songOver(payload ...interface{}) {
+func (app *App) songInfo(payload ...interface{}) {
 	log.Println("song_over event received")
 
 	msg := app.songInfoEvent("song_info")
@@ -279,17 +253,8 @@ func (app *App) stop(payload ...interface{}) {
 
 func (app *App) prevSong(payload ...interface{}) {
 	log.Println("prev_song event received")
-	song := app.GetPrevSong(app.active)
-	f, err := ffmpeg.NewPCM(song, sampleRate, channels)
-	if err != nil {
-		log.Println("Unable to start new ffmpeg")
-		return
-	}
 
-	discordspeaker.Lock()
+	app.queue.Prev()
-	app.queue.Reset()
-	app.queue.Add(f)
-	discordspeaker.Unlock()
 
 	msg := app.songInfoEvent("song_info")
 	ws_msg <- msg
@@ -297,17 +262,8 @@ func (app *App) prevSong(payload ...interface{}) {
 
 func (app *App) nextSong(payload ...interface{}) {
 	log.Println("next_song event received")
-	song := app.GetNextSong(app.active)
-	f, err := ffmpeg.NewPCM(song, sampleRate, channels)
-	if err != nil {
-		log.Println("Unable to start new ffmpeg")
-		return
-	}
 
-	discordspeaker.Lock()
+	app.queue.Next()
-	app.queue.Reset()
-	app.queue.Add(f)
-	discordspeaker.Unlock()
 
 	msg := app.songInfoEvent("song_info")
 	ws_msg <- msg
@@ -404,13 +360,7 @@ func (app *App) loadPlaylist(payload ...interface{}) {
 		return
 	}
 
-	app.plm.Lock()
-	app.playlist = pl
-	app.plm.Unlock()
-
-	app.next = true
 	discordspeaker.Pause(false)
-
 	list, err := app.Playlist(pl.Url)
 	if err != nil {
 		log.Println("Error getting playlist info,", id)
@@ -423,54 +373,44 @@ func (app *App) loadPlaylist(payload ...interface{}) {
 		return
 	}
 
-	app.active = list
+	app.queue.Reset()
 
-	song := app.GetNextSong(list)
+	go func() {
-	f, err := ffmpeg.NewPCM(song, sampleRate, channels)
+		for _, vid := range list {
+			ytinfo, err := app.Video(vid)
 			if err != nil {
-		log.Println("Unable to start new ffmpeg")
+				log.Println(err)
-		return
+				continue
 			}
 
-	discordspeaker.Lock()
+			_, yt, err := app.cache.GetOrCreateBytes(vid+".txt", func() ([]byte, error) {
-	app.queue.Reset()
+				uri, err := ytdl.NewYTdl(vid)
-	app.queue.Add(f)
+				if err != nil {
-	discordspeaker.Unlock()
+					return nil, err
+				}
+				return uri, nil
+			})
 
-	app.next = false
+			ff, err := ffmpeg.NewPCM(string(yt), sampleRate, channels)
+			if err != nil {
+				log.Println(err)
+				continue
+			}
 
-	msg := app.songInfoEvent("song_info")
+			song := &Song{
-	ws_msg <- msg
+				Title:    ytinfo.Title,
-	log.Println("Added song", song)
+				Channel:  ytinfo.Channel,
+				VideoID:  vid,
+				Length:   ytinfo.Len,
+				PCM:      ff,
+				Playlist: *pl,
+				DLuri:    string(yt),
+			}
+			app.queue.Add(song)
+		}
+	}()
 }
 
 func (app *App) preloadSong(payload ...interface{}) {
-	log.Println("preload_song event received")
+	app.queue.Preload()
-	app.next = true
-	discordspeaker.Pause(false)
-
-	var song string
-	switch current := app.queue.Current().(type) {
-	case *ffmpeg.PCM:
-		for {
-			song = app.GetNextSong(app.active)
-			if current.Uri != song {
-				break
-			}
-			log.Println("Got same song, try again!")
-		}
-	default:
-		song = app.GetNextSong(app.active)
-	}
-
-	f, err := ffmpeg.NewPCM(song, sampleRate, channels)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	discordspeaker.Lock()
-	app.queue.Add(f)
-	discordspeaker.Unlock()
-
-	log.Println("Added song.", song)
 }

ffmpeg/ffmpeg.go

@@ -3,14 +3,10 @@ package ffmpeg
 import (
 	"bytes"
 	"context"
-	"log"
 	"os"
 	"os/exec"
 	"strconv"
-	"sync"
 	"time"
-
-	"dndmusicbot/ytdl"
 )
 
 type FFmpeg struct {
@@ -21,46 +17,22 @@ type FFmpeg struct {
 	Len     time.Duration
 	Title   string
 	Channel string
-	PMutex       *sync.RWMutex
-	ProcessState *os.ProcessState
 	err     chan error
 	fb      chan bool
 }
 
 func NewFFmpeg(uri string, sampleRate int, channels int) (ff *FFmpeg, err error) {
-	var yt *ytdl.YTdl
-	for {
-		yt, err = ytdl.NewYTdl(uri)
-		if err != nil {
-			log.Println("Something went wrong, trying again.", err)
-			continue
-		}
-		if yt.Url != "" {
-			break
-		}
-
-		log.Println("Something went wrong, trying again.")
-		time.Sleep(500 * time.Millisecond)
-	}
-
-RETRY:
 	ff = new(FFmpeg)
-	ff.PMutex = &sync.RWMutex{}
-	ff.Len = yt.Len
-	ff.Title = yt.Title
-	ff.Channel = yt.Channel
 	ctx, cancel := context.WithCancel(context.Background())
 	ff.Cancel = cancel
 
 	ff.Cmd = exec.CommandContext(
 		ctx,
 		"ffmpeg",
-		"-xerror",
+		"-i", uri,
-		"-i", yt.Url,
 		"-f", "s16le",
 		"-v", "error",
 		//"-stats",
-		//"-progress", "pipe:2",
 		"-ar", strconv.Itoa(sampleRate),
 		"-ac", strconv.Itoa(channels),
 		"-af", "loudnorm=I=-16:LRA=11:TP=-1.5",
@@ -74,26 +46,22 @@ RETRY:
 	ff.Out = bytes.NewBuffer(make([]byte, 128*1024))
 	ff.Cmd.Stdout = ff.Out
 
-	exitctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
-	defer cancel()
-
-	go func() {
-		ff.Cmd.Start()
-		ff.err <- ff.Cmd.Wait()
-	}()
-
-	select {
-	case <-exitctx.Done():
-		ff.Started = true
-	case <-ff.err:
-		log.Println("ffmpeg exited early, retry...")
-		goto RETRY
-	}
-
 	return
 }
 
-func (ff *FFmpeg) Close() error {
+func (ff *FFmpeg) Start() error {
+	ff.Started = true
+	err := ff.Cmd.Start()
+	go func() {
+		if err != nil {
+			ff.err <- ff.Cmd.Wait()
+		}
+	}()
+
+	return err
+}
+
+func (ff FFmpeg) Close() error {
 	ff.Cancel()
 	return nil
 }

ffmpeg/pcm.go

@@ -3,6 +3,7 @@ package ffmpeg
 import (
 	"fmt"
 	"io"
+	"log"
 	"math"
 	"time"
 
@@ -20,7 +21,7 @@ type PCM struct {
 	Volume float64
 }
 
-func NewPCM(uri string, sampleRate int, channels int) (beep.StreamSeekCloser, error) {
+func NewPCM(uri string, sampleRate int, channels int) (*PCM, error) {
 	out := new(PCM)
 
 	ff, err := NewFFmpeg(uri, sampleRate, channels)
@@ -62,6 +63,7 @@ func (d *PCM) Stream(samples [][2]float64) (n int, ok bool) {
 			break
 		}
 		if err != nil {
+			log.Println(err)
 			ok = false
 			break
 		}

go.mod

@@ -6,6 +6,7 @@ require (
 	github.com/bwmarrin/discordgo v0.26.1
 	github.com/dpup/gohubbub v0.0.0-20140517235056-2dc6969d22d8
 	github.com/faiface/beep v1.1.0
+	github.com/gohugoio/hugo v0.106.0
 	github.com/google/uuid v1.3.0
 	github.com/gorilla/websocket v1.5.0
 	github.com/grafov/bcast v0.0.0-20190217190352-1447f067e08d
@@ -14,8 +15,11 @@ require (
 	github.com/kataras/go-events v0.0.3
 	github.com/pkg/errors v0.9.1
 	github.com/r3labs/sse/v2 v2.8.2
+	github.com/sosodev/duration v1.0.1
+	github.com/spf13/afero v1.9.3
 	github.com/spf13/viper v1.14.0
 	github.com/tidwall/gjson v1.14.3
+	golang.org/x/time v0.2.0
 	google.golang.org/api v0.103.0
 	layeh.com/gopus v0.0.0-20210501142526-1ee02d434e32
 )
@@ -23,7 +27,23 @@ require (
 require (
 	cloud.google.com/go/compute v1.12.1 // indirect
 	cloud.google.com/go/compute/metadata v0.2.1 // indirect
+	github.com/BurntSushi/locker v0.0.0-20171006230638-a6e239ea1c69 // indirect
+	github.com/PuerkitoBio/purell v1.1.1 // indirect
+	github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 // indirect
+	github.com/alecthomas/chroma/v2 v2.3.0 // indirect
+	github.com/armon/go-radix v1.0.0 // indirect
+	github.com/bep/clock v0.3.0 // indirect
+	github.com/bep/debounce v1.2.0 // indirect
+	github.com/bep/godartsass v0.14.0 // indirect
+	github.com/bep/golibsass v1.1.0 // indirect
+	github.com/bep/overlayfs v0.6.0 // indirect
+	github.com/clbanning/mxj/v2 v2.5.7 // indirect
+	github.com/cli/safeexec v1.0.0 // indirect
+	github.com/dlclark/regexp2 v1.4.0 // indirect
 	github.com/fsnotify/fsnotify v1.6.0 // indirect
+	github.com/gobwas/glob v0.2.3 // indirect
+	github.com/gohugoio/locales v0.14.0 // indirect
+	github.com/gohugoio/localescompressed v1.0.1 // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/googleapis/enterprise-certificate-proxy v0.2.0 // indirect
@@ -32,24 +52,32 @@ require (
 	github.com/hashicorp/hcl v1.0.0 // indirect
 	github.com/jackc/pgpassfile v1.0.0 // indirect
 	github.com/jackc/pgservicefile v0.0.0-20200714003250-2b9c44734f2b // indirect
+	github.com/jdkato/prose v1.2.1 // indirect
+	github.com/kyokomi/emoji/v2 v2.2.10 // indirect
 	github.com/magiconair/properties v1.8.6 // indirect
+	github.com/mattn/go-isatty v0.0.16 // indirect
+	github.com/mattn/go-runewidth v0.0.9 // indirect
+	github.com/mitchellh/hashstructure v1.1.0 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
+	github.com/niklasfasching/go-org v1.6.5 // indirect
+	github.com/olekukonko/tablewriter v0.0.5 // indirect
 	github.com/pelletier/go-toml v1.9.5 // indirect
-	github.com/pelletier/go-toml/v2 v2.0.5 // indirect
+	github.com/pelletier/go-toml/v2 v2.0.6 // indirect
-	github.com/spf13/afero v1.9.2 // indirect
+	github.com/rogpeppe/go-internal v1.9.0 // indirect
 	github.com/spf13/cast v1.5.0 // indirect
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/subosito/gotenv v1.4.1 // indirect
+	github.com/tdewolff/parse/v2 v2.6.4 // indirect
 	github.com/tidwall/match v1.1.1 // indirect
 	github.com/tidwall/pretty v1.2.1 // indirect
+	github.com/yuin/goldmark v1.5.3 // indirect
 	go.opencensus.io v0.24.0 // indirect
 	golang.org/x/crypto v0.2.0 // indirect
 	golang.org/x/net v0.2.0 // indirect
 	golang.org/x/oauth2 v0.0.0-20221014153046-6fdb5e3db783 // indirect
 	golang.org/x/sys v0.2.0 // indirect
 	golang.org/x/text v0.4.0 // indirect
-	golang.org/x/time v0.2.0 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
 	google.golang.org/genproto v0.0.0-20221027153422-115e99e71e1c // indirect
 	google.golang.org/grpc v1.50.1 // indirect

go.sum

@@ -42,23 +42,58 @@ cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RX
 cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0=
 cloud.google.com/go/storage v1.14.0/go.mod h1:GrKmX003DSIwi9o29oFT7YDnHYwZoctc3fOKtUw0Xmo=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
+github.com/BurntSushi/locker v0.0.0-20171006230638-a6e239ea1c69 h1:+tu3HOoMXB7RXEINRVIpxJCT+KdYiI7LAEAUrOw3dIU=
+github.com/BurntSushi/locker v0.0.0-20171006230638-a6e239ea1c69/go.mod h1:L1AbZdiDllfyYH5l5OkAaZtk7VkWe89bPJFmnDBNHxg=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/DATA-DOG/go-sqlmock v1.3.3/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
+github.com/PuerkitoBio/purell v1.1.1 h1:WEQqlqaGbrPkxLJWfBwQmfEAE1Z7ONdDLqrN38tNFfI=
+github.com/PuerkitoBio/purell v1.1.1/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
+github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 h1:d+Bc7a5rLufV/sSk/8dngufqelfh6jnri85riMAaF/M=
+github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
+github.com/alecthomas/chroma/v2 v2.3.0 h1:83xfxrnjv8eK+Cf8qZDzNo3PPF9IbTWHs7z28GY6D0U=
+github.com/alecthomas/chroma/v2 v2.3.0/go.mod h1:mZxeWZlxP2Dy+/8cBob2PYd8O2DwNAzave5AY7A2eQw=
+github.com/alecthomas/repr v0.1.0 h1:ENn2e1+J3k09gyj2shc0dHr/yjaWSHRlrJ4DPMevDqE=
+github.com/armon/go-radix v1.0.0 h1:F4z6KzEeeQIMeLFa97iZU6vupzoecKdU5TX24SNppXI=
+github.com/armon/go-radix v1.0.0/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
+github.com/bep/clock v0.3.0 h1:vfOA6+wVb6pPQEiXow9f/too92vNTLe9MuwO13PfI0M=
+github.com/bep/clock v0.3.0/go.mod h1:6Gz2lapnJ9vxpvPxQ2u6FcXFRoj4kkiqQ6pm0ERZlwk=
+github.com/bep/debounce v1.2.0 h1:wXds8Kq8qRfwAOpAxHrJDbCXgC5aHSzgQb/0gKsHQqo=
+github.com/bep/debounce v1.2.0/go.mod h1:H8yggRPQKLUhUoqrJC1bO2xNya7vanpDl7xR3ISbCJ0=
+github.com/bep/gitmap v1.1.2 h1:zk04w1qc1COTZPPYWDQHvns3y1afOsdRfraFQ3qI840=
+github.com/bep/goat v0.5.0 h1:S8jLXHCVy/EHIoCY+btKkmcxcXFd34a0Q63/0D4TKeA=
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-github.com/pelletier/go-toml/v2 v2.0.5 h1:ipoSadvV8oGUjnUbMub59IDPPwfxF694nG/jwbMiyQg=
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-github.com/pelletier/go-toml/v2 v2.0.5/go.mod h1:OMHamSCAODeSsVrwwvcJOaoN0LIUIaFVNZzmWyNfXas=
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 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
@@ -208,9 +287,16 @@ github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:
 github.com/r3labs/sse/v2 v2.8.2 h1:YWZy2i2nLoD5fE3vLLTdTz/8wxIYIFp5XbLNmmrrNts=
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 github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
-github.com/rogpeppe/go-internal v1.6.1 h1:/FiVV8dS/e+YqF2JvO3yXRFbBLTIuSDkuC7aBOAvL+k=
+github.com/rogpeppe/go-internal v1.6.1/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc=
-github.com/spf13/afero v1.9.2 h1:j49Hj62F0n+DaZ1dDCvhABaPNSGNkt32oRFxI33IEMw=
+github.com/rogpeppe/go-internal v1.9.0 h1:73kH8U+JUqXU8lRuOHeVHaa/SZPifC7BkcraZVejAe8=
-github.com/spf13/afero v1.9.2/go.mod h1:iUV7ddyEEZPO5gA3zD4fJt6iStLlL+Lg4m2cihcDf8Y=
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+github.com/sosodev/duration v1.0.1 h1:qovz/BFb6kp30KZ4/AYZvB5Z6zANmeQja5l6W9X1w68=
+github.com/sosodev/duration v1.0.1/go.mod h1:RQIBBX0+fMLc/D9+Jb/fwvVmo0eZvDDEERAikUR6SDg=
+github.com/spf13/afero v1.9.3 h1:41FoI0fD7OR7mGcKE/aOiLkGreyf8ifIOQmJANWogMk=
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 github.com/spf13/cast v1.5.0/go.mod h1:SpXXQ5YoyJw6s3/6cMTQuxvgRl3PCJiyaX9p6b155UU=
 github.com/spf13/jwalterweatherman v1.1.0 h1:ue6voC5bR5F8YxI5S67j9i582FU4Qvo2bmqnqMYADFk=
@@ -226,6 +312,7 @@ github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXf
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
+github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
@@ -233,6 +320,11 @@ github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKs
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
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 github.com/subosito/gotenv v1.4.1/go.mod h1:ayKnFf/c6rvx/2iiLrJUk1e6plDbT3edrFNGqEflhK0=
+github.com/tdewolff/minify/v2 v2.12.4 h1:kejsHQMM17n6/gwdw53qsi6lg0TGddZADVyQOz1KMdE=
+github.com/tdewolff/parse/v2 v2.6.4 h1:KCkDvNUMof10e3QExio9OPZJT8SbdKojLBumw8YZycQ=
+github.com/tdewolff/parse/v2 v2.6.4/go.mod h1:woz0cgbLwFdtbjJu8PIKxhW05KplTFQkOdX78o+Jgrs=
+github.com/tdewolff/test v1.0.7 h1:8Vs0142DmPFW/bQeHRP3MV19m1gvndjUb1sn8yy74LM=
+github.com/tdewolff/test v1.0.7/go.mod h1:6DAvZliBAAnD7rhVgwaM7DE5/d9NMOAJ09SqYqeK4QE=
 github.com/tidwall/gjson v1.14.3 h1:9jvXn7olKEHU1S9vwoMGliaT8jq1vJ7IH/n9zD9Dnlw=
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 github.com/tidwall/match v1.1.1 h1:+Ho715JplO36QYgwN9PGYNhgZvoUSc9X2c80KVTi+GA=
@@ -244,6 +336,9 @@ github.com/yuin/goldmark v1.1.25/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9de
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.1.32/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
+github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
+github.com/yuin/goldmark v1.5.3 h1:3HUJmBFbQW9fhQOzMgseU134xfi6hU+mjWywx5Ty+/M=
+github.com/yuin/goldmark v1.5.3/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
 go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
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@@ -252,6 +347,7 @@ go.opencensus.io v0.22.4/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
 go.opencensus.io v0.22.5/go.mod h1:5pWMHQbX5EPX2/62yrJeAkowc+lfs/XD7Uxpq3pI6kk=
 go.opencensus.io v0.24.0 h1:y73uSU6J157QMP2kn2r30vwW1A2W2WFwSCGnAVxeaD0=
 go.opencensus.io v0.24.0/go.mod h1:vNK8G9p7aAivkbmorf4v+7Hgx+Zs0yY+0fOtgBfjQKo=
+go.uber.org/atomic v1.10.0 h1:9qC72Qh0+3MqyJbAn8YU5xVq1frD8bn3JtD2oXtafVQ=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
@@ -274,6 +370,7 @@ golang.org/x/exp v0.0.0-20200224162631-6cc2880d07d6/go.mod h1:3jZMyOhIsHpP37uCMk
 golang.org/x/image v0.0.0-20190220214146-31aff87c08e9/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
 golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
 golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
+golang.org/x/image v0.0.0-20211028202545-6944b10bf410 h1:hTftEOvwiOq2+O8k2D5/Q7COC7k5Qcrgc2TFURJYnvQ=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
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@@ -296,6 +393,7 @@ golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.1/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
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@@ -329,6 +427,7 @@ golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwY
 golang.org/x/net v0.0.0-20201209123823-ac852fbbde11/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20201224014010-6772e930b67b/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
+golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
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@@ -352,6 +451,8 @@ golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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+golang.org/x/sync v0.1.0 h1:wsuoTGHzEhffawBOhz5CYhcrV4IdKZbEyZjBMuTp12o=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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@@ -386,8 +487,11 @@ golang.org/x/sys v0.0.0-20201201145000-ef89a241ccb3/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210104204734-6f8348627aad/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210225134936-a50acf3fe073/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423185535-09eb48e85fd7/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220908164124-27713097b956/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.2.0 h1:ljd4t30dBnAvMZaQCevtY0xLLD0A+bRZXbgLMLU1F/A=
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@@ -398,6 +502,7 @@ golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.4/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.4.0 h1:BrVqGRd7+k1DiOgtnFvAkoQEWQvBc25ouMJM6429SFg=
 golang.org/x/text v0.4.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
@@ -452,6 +557,8 @@ golang.org/x/tools v0.0.0-20201208233053-a543418bbed2/go.mod h1:emZCQorbCU4vsT4f
 golang.org/x/tools v0.0.0-20210105154028-b0ab187a4818/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
 golang.org/x/tools v0.0.0-20210108195828-e2f9c7f1fc8e/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
 golang.org/x/tools v0.1.0/go.mod h1:xkSsbof2nBLbhDlRMhhhyNLN/zl3eTqcnHD5viDpcZ0=
+golang.org/x/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
+golang.org/x/tools v0.2.0 h1:G6AHpWxTMGY1KyEYoAQ5WTtIekUUvDNjan3ugu60JvE=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -566,6 +673,7 @@ gopkg.in/fatih/set.v0 v0.2.1 h1:Xvyyp7LXu34P0ROhCyfXkmQCAoOUKb1E2JS9I7SE5CY=
 gopkg.in/fatih/set.v0 v0.2.1/go.mod h1:5eLWEndGL4zGGemXWrKuts+wTJR0y+w+auqUJZbmyBg=
 gopkg.in/ini.v1 v1.67.0 h1:Dgnx+6+nfE+IfzjUEISNeydPJh9AXNNsWbGP9KzCsOA=
 gopkg.in/ini.v1 v1.67.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
+gopkg.in/neurosnap/sentences.v1 v1.0.6/go.mod h1:YlK+SN+fLQZj+kY3r8DkGDhDr91+S3JmTb5LSxFRQo0=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=

queue.go

@@ -1,11 +1,14 @@
 package main
 
 import (
+	"container/list"
 	"log"
+	"time"
 
 	"github.com/faiface/beep"
 	"github.com/kataras/go-events"
 
+	"dndmusicbot/ffmpeg"
 	discordspeaker "dndmusicbot/speaker"
 )
 
@@ -15,68 +18,130 @@ type Ambiance struct {
 }
 
 func init() {
-	app.ambiance = new(Queue)
+	app.ambiance = beep.Mixer{}
-	app.ambiance.Events = app.events
+	discordspeaker.Play(&app.ambiance)
-	discordspeaker.Play(app.ambiance)
 
 	app.queue = new(Queue)
+	app.queue.list = list.New()
 	app.queue.Events = app.events
 	discordspeaker.Play(app.queue)
 
 	log.Println("queue.go done.")
 }
 
+type Song struct {
+	Title    string
+	Channel  string
+	VideoID  string
+	Length   time.Duration
+	PCM      *ffmpeg.PCM
+	Playlist Playlist
+	DLuri    string
+}
+
+func (s *Song) NewStream() (err error) {
+	s.PCM, err = ffmpeg.NewPCM(s.DLuri, sampleRate, channels)
+	return
+}
+
 type Queue struct {
-	streamers []beep.StreamSeekCloser
 	Events  events.EventEmmiter
 	playing bool
+	yt      VideoInfo
+	list    *list.List
+	current *list.Element
 }
 
 func (q Queue) IsPlaying() bool {
 	return q.playing
 }
 
-func (q *Queue) Add(streamers ...beep.StreamSeekCloser) {
+func (q *Queue) Play() {
 	q.playing = true
-	q.streamers = append(q.streamers, streamers...)
+	if q.list.Len() > 0 {
+		play := q.list.Front()
+		q.current = play
+		app.events.Emit("song_start")
+	}
+}
+
+func (q *Queue) Add(s *Song) {
+	el := q.list.PushBack(s)
+	if el == q.list.Front() {
+		q.Play()
+	}
 }
 
 func (q Queue) QLen() int {
-	return len(q.streamers)
+	return q.list.Len()
 }
 
-func (q Queue) Len() int {
+func (q Queue) Current() *Song {
-	if len(q.streamers) > 0 {
+	if q.current == nil {
-		return q.streamers[0].Len()
+		return new(Song)
-	} else {
-		return 0
-	}
-}
-
-func (q Queue) Current() beep.StreamSeekCloser {
-	if len(q.streamers) > 0 {
-		return q.streamers[0]
-	} else {
-		return nil
 	}
+	return q.current.Value.(*Song)
 }
 
 func (q *Queue) Reset() {
 	q.playing = false
-	for _, stream := range q.streamers {
+
-		stream.Close()
+	q.current = nil
+	q.list = q.list.Init()
 }
-	q.streamers = nil
+
+func (q *Queue) Next() {
+	if q.current == nil {
+		return
+	}
+	next := q.current.Next()
+	if next == nil {
+		next = q.list.Front()
+	}
+
+	pcm := next.Value.(*Song).PCM
+	if pcm != nil && pcm.Position() != 0 {
+		err := next.Value.(*Song).NewStream()
+		log.Println(err)
+	}
+
+	q.current = next
+	return
+}
+
+func (q *Queue) Prev() {
+	if q.current == nil {
+		return
+	}
+
+	prev := q.current.Prev()
+	if prev == nil {
+		prev = q.list.Back()
+	}
+
+	err := prev.Value.(*Song).NewStream()
+	if err != nil {
+		log.Println(err)
+	}
+	q.current = prev
+
+	return
+}
+
+func (q *Queue) Preload() {
 }
 
 func (q *Queue) Stream(samples [][2]float64) (n int, ok bool) {
+	if q.current != nil && !q.current.Value.(*Song).PCM.Player.Started {
+		q.current.Value.(*Song).PCM.Player.Start()
+	}
 	// We use the filled variable to track how many samples we've
 	// successfully filled already. We loop until all samples are filled.
 	filled := 0
 
 	for filled < len(samples) {
 		// There are no streamers in the queue, so we stream silence.
-		if len(q.streamers) == 0 {
+		if q.current == nil || q.list.Len() == 0 {
 			for i := range samples[filled:] {
 				samples[i][0] = 0
 				samples[i][1] = 0
@@ -85,11 +150,11 @@ func (q *Queue) Stream(samples [][2]float64) (n int, ok bool) {
 		}
 
 		// We stream from the first streamer in the queue.
-		n, ok := q.streamers[0].Stream(samples[filled:])
+		n, ok := q.current.Value.(*Song).PCM.Stream(samples[filled:])
 		// If it's drained, we pop it from the queue, thus continuing with
 		// the next streamer.
 		if !ok {
-			q.streamers = q.streamers[1:]
+			q.Next()
 			q.Events.Emit("song_over", nil)
 		}
 		// We update the number of filled samples.
@@ -103,9 +168,17 @@ func (q *Queue) Err() error {
 }
 
 func (q *Queue) Position() int {
-	if len(q.streamers) > 0 {
+	if q.current == nil || q.current.Value.(*Song).PCM == nil {
-		return q.streamers[0].Position()
-	} else {
 		return 0
 	}
+
+	return q.current.Value.(*Song).PCM.Position()
+}
+
+func (q Queue) Len() int {
+	if q.current == nil {
+		return 0
+	}
+
+	return int(q.current.Value.(*Song).Length.Milliseconds())
 }

ws.go

@@ -70,7 +70,7 @@ func handleWS(c *websocket.Conn) error {
 	c.SetWriteDeadline(time.Now().Add(10 * time.Second))
 	c.WriteJSON(msg)
 
-	if app.ambiance.IsPlaying() {
+	if app.ambiance.Len() > 0 {
 		msg := make(map[string]interface{})
 		out := make(map[string]interface{})
 		msg["event"] = "ambiance_play"

youtube.go

@@ -1,10 +1,12 @@
 package main
 
 import (
+	"bytes"
 	"context"
 	"crypto/rand"
 	"encoding/binary"
-	"fmt"
+	"encoding/json"
+	"errors"
 	"io"
 	"log"
 	"math/big"
@@ -13,6 +15,7 @@ import (
 	mrand "math/rand"
 
 	"github.com/faiface/beep"
+	"github.com/sosodev/duration"
 	"google.golang.org/api/option"
 	"google.golang.org/api/youtube/v3"
 )
@@ -57,7 +60,7 @@ func ShufflePlaylist(list []string) ([]string, error) {
 }
 
 func (app *App) GetSong(list []string) string {
-	return fmt.Sprintf(yt_url, list[app.plidx])
+	return list[app.plidx]
 }
 
 func (app *App) GetNextSong(list []string) string {
@@ -65,7 +68,7 @@ func (app *App) GetNextSong(list []string) string {
 	if app.plidx >= len(app.active) {
 		app.plidx = 0
 	}
-	return fmt.Sprintf(yt_url, list[app.plidx])
+	return list[app.plidx]
 }
 
 func (app *App) GetPrevSong(list []string) string {
@@ -73,7 +76,7 @@ func (app *App) GetPrevSong(list []string) string {
 	if app.plidx < 0 {
 		app.plidx = len(list)
 	}
-	return fmt.Sprintf(yt_url, list[app.plidx])
+	return list[app.plidx]
 }
 
 func GetRandomSong(list []string) string {
@@ -86,7 +89,56 @@ func GetRandomSong(list []string) string {
 		log.Println("Failed to get random int, ", err)
 		return ""
 	}
-	return fmt.Sprintf(yt_url, list[idx.Int64()])
+	return list[idx.Int64()]
+}
+
+type VideoInfo struct {
+	Title   string
+	Channel string
+	Len     time.Duration
+	Uri     string
+}
+
+func (app App) Video(vid string) (out VideoInfo, err error) {
+	_, r, err := app.cache.GetOrCreate(vid+".videoinfo", func() (io.ReadCloser, error) {
+		call := app.youtube.Videos.List([]string{"snippet", "contentDetails"})
+		call.MaxResults(1)
+		call.Id(vid)
+		resp, err := call.Do()
+		if err != nil {
+			return nil, err
+		}
+
+		if len(resp.Items) != 1 {
+			return nil, errors.New("Response contains not 1 item!")
+		}
+
+		video := resp.Items[0]
+
+		songdur, err := duration.Parse(video.ContentDetails.Duration)
+		if err != nil {
+			return nil, err
+		}
+
+		out := new(VideoInfo)
+		out.Len = songdur.ToTimeDuration()
+		out.Title = video.Snippet.Title
+		out.Channel = video.Snippet.ChannelTitle
+		out.Uri = vid
+
+		var buf bytes.Buffer
+
+		json.NewEncoder(&buf).Encode(out)
+
+		return io.NopCloser(&buf), nil
+
+	})
+	if err != nil {
+		return
+	}
+	json.NewDecoder(r).Decode(&out)
+
+	return out, nil
 }
 
 func (app App) Playlist(playlist string) ([]string, error) {

ytdl/ytdl.go

@@ -1,38 +1,15 @@
 package ytdl
 
 import (
-	"errors"
 	"fmt"
-	"log"
 	"os/exec"
 	"path/filepath"
-	"time"
-
-	"github.com/gohugoio/hugo/cache/filecache"
-	"github.com/spf13/afero"
-	"github.com/tidwall/gjson"
 )
 
-var cache *filecache.Cache
 var yturl = "https://youtu.be/%s"
 
-func init() {
+func NewYTdl(vid string) ([]byte, error) {
-	fs := afero.NewMemMapFs()
+	uri, err := exec.Command(
-	cache = filecache.NewCache(fs, 6*time.Hour, "")
-}
-
-type YTdl struct {
-	Title   string
-	Url     string
-	Channel string
-	Len     time.Duration
-}
-
-func NewYTdl(vid string) (*YTdl, error) {
-	log.Printf("Loading %s from youtube\n", vid)
-	_, ytdl_js, err := cache.GetOrCreateBytes(vid+".json", func() ([]byte, error) {
-		log.Printf("%s not found in cache, downloading info.\n", vid)
-		js, err := exec.Command(
 		"./bin/yt-dlp_linux",
 		fmt.Sprintf(yturl, vid),
 		"--cookies", "./cookies.txt",
@@ -42,31 +19,13 @@ func NewYTdl(vid string) (*YTdl, error) {
 		"--newline",
 		"--restrict-filenames",
 		"-f", "140",
-			"-j",
+		"--get-url",
 	).Output()
 	if err != nil {
 		return nil, err
 	}
 
-		log.Printf("%s is now cached.\n", vid)
+	return uri, nil
-
-		return js, nil
-	})
-
-	if err != nil {
-		return nil, err
-	}
-	if !gjson.ValidBytes(ytdl_js) {
-		return nil, errors.New("invalid json")
-	}
-
-	results := gjson.GetManyBytes(ytdl_js, "title", "url", "duration", "channel")
-	title := results[0].String()
-	geturl := results[1].String()
-	duration, err := time.ParseDuration(fmt.Sprintf("%ds", results[2].Int()))
-	channel := results[3].String()
-
-	return &YTdl{title, geturl, channel, duration}, nil
 }
 
 func DownloadAmbiance(uri string, name string) error {