119 lines
2.3 KiB
Go
119 lines
2.3 KiB
Go
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package main
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import (
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"context"
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"crypto/rand"
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"encoding/binary"
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"fmt"
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"io"
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"log"
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"math/big"
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"time"
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mrand "math/rand"
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"github.com/faiface/beep"
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"google.golang.org/api/option"
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"google.golang.org/api/youtube/v3"
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)
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var (
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yt_url = "https://www.youtube.com/watch?v=%s"
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)
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func init() {
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log.Println("youtube.go loading..")
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var err error
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apikey := config.GetString("youtube.apikey")
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app.youtube, err = youtube.NewService(context.Background(), option.WithAPIKey(apikey))
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if err != nil {
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log.Fatal(err)
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}
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log.Println("youtube.go done.")
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}
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type YT struct {
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dst io.WriteCloser
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pcm io.ReadCloser
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dur time.Duration
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pos time.Duration
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f beep.Format
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}
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func ShufflePlaylist(list []string) ([]string, error) {
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seedb := make([]byte, 32)
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_, err := rand.Read(seedb)
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if err != nil {
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return nil, err
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}
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seed := binary.BigEndian.Uint64(seedb)
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mrand.Seed(int64(seed))
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mrand.Shuffle(len(list), func(i, j int) { list[i], list[j] = list[j], list[i] })
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return list, nil
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}
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func (app *App) GetSong(list []string) string {
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return fmt.Sprintf(yt_url, list[app.plidx])
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}
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func (app *App) GetNextSong(list []string) string {
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app.plidx++
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if app.plidx >= len(app.active) {
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app.plidx = 0
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}
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return fmt.Sprintf(yt_url, list[app.plidx])
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}
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func (app *App) GetPrevSong(list []string) string {
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app.plidx--
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if app.plidx < 0 {
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app.plidx = len(list)
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}
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return fmt.Sprintf(yt_url, list[app.plidx])
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}
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func GetRandomSong(list []string) string {
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if !(len(list) > 0) {
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return ""
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}
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idx, err := rand.Int(rand.Reader, big.NewInt(int64(len(list)-1)))
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if err != nil {
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log.Println("Failed to get random int, ", err)
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return ""
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}
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return fmt.Sprintf(yt_url, list[idx.Int64()])
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}
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func (app App) Playlist(playlist string) ([]string, error) {
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call := app.youtube.PlaylistItems.List([]string{"contentDetails"})
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pageToken := ""
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call = call.MaxResults(50)
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call = call.PlaylistId(playlist)
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if pageToken != "" {
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call = call.PageToken(pageToken)
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}
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var list []string
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for {
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response, err := call.Do()
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if err != nil {
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return nil, err
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}
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for _, item := range response.Items {
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list = append(list, item.ContentDetails.VideoId)
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}
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pageToken = response.NextPageToken
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if pageToken == "" {
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break
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}
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}
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return list, nil
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//return fmt.Sprintf(yt_url, list[rand.Intn(len(list))])
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}
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