428 lines
12 KiB
Go
428 lines
12 KiB
Go
package ctrlsubsonic
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import (
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"errors"
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"fmt"
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"log"
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"math"
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"net/http"
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"path/filepath"
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"time"
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"unicode"
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"github.com/jinzhu/gorm"
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"go.senan.xyz/gonic/db"
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"go.senan.xyz/gonic/multierr"
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"go.senan.xyz/gonic/scanner"
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"go.senan.xyz/gonic/server/ctrlsubsonic/params"
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"go.senan.xyz/gonic/server/ctrlsubsonic/spec"
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"go.senan.xyz/gonic/server/ctrlsubsonic/specid"
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"go.senan.xyz/gonic/server/ctrlsubsonic/specidpaths"
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)
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func lowerUDecOrHash(in string) string {
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lower := unicode.ToLower(rune(in[0]))
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if !unicode.IsLetter(lower) {
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return "#"
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}
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return string(lower)
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}
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func getMusicFolder(musicPaths []MusicPath, p params.Params) string {
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idx, err := p.GetInt("musicFolderId")
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if err != nil {
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return ""
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}
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if idx < 0 || idx >= len(musicPaths) {
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return ""
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}
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return musicPaths[idx].Path
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}
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func (c *Controller) ServeGetLicence(r *http.Request) *spec.Response {
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sub := spec.NewResponse()
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sub.Licence = &spec.Licence{
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Valid: true,
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}
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return sub
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}
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func (c *Controller) ServePing(r *http.Request) *spec.Response {
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return spec.NewResponse()
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}
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func (c *Controller) ServeScrobble(r *http.Request) *spec.Response {
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user := r.Context().Value(CtxUser).(*db.User)
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params := r.Context().Value(CtxParams).(params.Params)
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id, err := params.GetID("id")
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if err != nil || id.Type != specid.Track {
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return spec.NewError(10, "please provide a track `id` track parameter")
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}
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track := &db.Track{}
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if err := c.DB.Preload("Album").Preload("Artist").First(track, id.Value).Error; err != nil {
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return spec.NewError(0, "error finding track: %v", err)
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}
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optStamp := params.GetOrTime("time", time.Now())
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optSubmission := params.GetOrBool("submission", true)
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if err := streamUpdateStats(c.DB, user.ID, track.Album.ID, optStamp); err != nil {
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return spec.NewError(0, "error updating stats: %v", err)
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}
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var scrobbleErrs multierr.Err
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for _, scrobbler := range c.Scrobblers {
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if err := scrobbler.Scrobble(user, track, optStamp, optSubmission); err != nil {
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scrobbleErrs.Add(err)
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}
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}
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if scrobbleErrs.Len() > 0 {
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return spec.NewError(0, "error when submitting: %s", scrobbleErrs.Error())
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}
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return spec.NewResponse()
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}
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func (c *Controller) ServeGetMusicFolders(r *http.Request) *spec.Response {
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sub := spec.NewResponse()
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sub.MusicFolders = &spec.MusicFolders{}
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for i, mp := range c.MusicPaths {
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alias := mp.Alias
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if alias == "" {
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alias = filepath.Base(mp.Path)
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}
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sub.MusicFolders.List = append(sub.MusicFolders.List, &spec.MusicFolder{ID: i, Name: alias})
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}
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return sub
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}
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func (c *Controller) ServeStartScan(r *http.Request) *spec.Response {
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go func() {
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if _, err := c.Scanner.ScanAndClean(scanner.ScanOptions{}); err != nil {
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log.Printf("error while scanning: %v\n", err)
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}
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}()
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return c.ServeGetScanStatus(r)
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}
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func (c *Controller) ServeGetScanStatus(r *http.Request) *spec.Response {
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var trackCount int
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if err := c.DB.Model(db.Track{}).Count(&trackCount).Error; err != nil {
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return spec.NewError(0, "error finding track count: %v", err)
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}
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sub := spec.NewResponse()
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sub.ScanStatus = &spec.ScanStatus{
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Scanning: c.Scanner.IsScanning(),
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Count: trackCount,
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}
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return sub
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}
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func (c *Controller) ServeGetUser(r *http.Request) *spec.Response {
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user := r.Context().Value(CtxUser).(*db.User)
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hasLastFM := user.LastFMSession != ""
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hasListenBrainz := user.ListenBrainzToken != ""
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sub := spec.NewResponse()
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sub.User = &spec.User{
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Username: user.Name,
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AdminRole: user.IsAdmin,
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JukeboxRole: c.Jukebox != nil,
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PodcastRole: c.Podcasts != nil,
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DownloadRole: true,
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ScrobblingEnabled: hasLastFM || hasListenBrainz,
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Folder: []int{1},
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}
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return sub
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}
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func (c *Controller) ServeNotFound(r *http.Request) *spec.Response {
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return spec.NewError(70, "view not found")
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}
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func (c *Controller) ServeGetPlayQueue(r *http.Request) *spec.Response {
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params := r.Context().Value(CtxParams).(params.Params)
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user := r.Context().Value(CtxUser).(*db.User)
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var queue db.PlayQueue
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err := c.DB.
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Where("user_id=?", user.ID).
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Find(&queue).
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Error
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if errors.Is(err, gorm.ErrRecordNotFound) {
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return spec.NewResponse()
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}
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sub := spec.NewResponse()
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sub.PlayQueue = &spec.PlayQueue{}
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sub.PlayQueue.Username = user.Name
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sub.PlayQueue.Position = queue.Position
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sub.PlayQueue.Current = queue.CurrentSID()
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sub.PlayQueue.Changed = queue.UpdatedAt
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sub.PlayQueue.ChangedBy = queue.ChangedBy
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trackIDs := queue.GetItems()
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sub.PlayQueue.List = make([]*spec.TrackChild, len(trackIDs))
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transcodeMIME, transcodeSuffix := streamGetTransPrefProfile(c.DB, user.ID, params.GetOr("c", ""))
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for i, id := range trackIDs {
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switch id.Type {
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case specid.Track:
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track := db.Track{}
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c.DB.
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Where("id=?", id.Value).
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Preload("Album").
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Preload("TrackStar", "user_id=?", user.ID).
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Preload("TrackRating", "user_id=?", user.ID).
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Find(&track)
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sub.PlayQueue.List[i] = spec.NewTCTrackByFolder(&track, track.Album)
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sub.PlayQueue.List[i].TranscodedContentType = transcodeMIME
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sub.PlayQueue.List[i].TranscodedSuffix = transcodeSuffix
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case specid.PodcastEpisode:
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pe := db.PodcastEpisode{}
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c.DB.
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Where("id=?", id.Value).
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Find(&pe)
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p := db.Podcast{}
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c.DB.
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Where("id=?", pe.PodcastID).
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Find(&p)
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sub.PlayQueue.List[i] = spec.NewTCPodcastEpisode(&pe, &p)
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sub.PlayQueue.List[i].TranscodedContentType = transcodeMIME
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sub.PlayQueue.List[i].TranscodedSuffix = transcodeSuffix
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}
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}
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return sub
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}
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func (c *Controller) ServeSavePlayQueue(r *http.Request) *spec.Response {
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params := r.Context().Value(CtxParams).(params.Params)
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tracks, err := params.GetIDList("id")
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if err != nil {
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return spec.NewError(10, "please provide some `id` parameters")
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}
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trackIDs := make([]specid.ID, 0, len(tracks))
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for _, id := range tracks {
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if (id.Type == specid.Track) || (id.Type == specid.PodcastEpisode) {
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trackIDs = append(trackIDs, id)
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}
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}
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if len(trackIDs) == 0 {
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return spec.NewError(10, "no track ids provided")
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}
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user := r.Context().Value(CtxUser).(*db.User)
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var queue db.PlayQueue
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c.DB.Where("user_id=?", user.ID).First(&queue)
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queue.UserID = user.ID
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queue.Current = params.GetOrID("current", specid.ID{}).String()
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queue.Position = params.GetOrInt("position", 0)
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queue.ChangedBy = params.GetOr("c", "") // must exist, middleware checks
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queue.SetItems(trackIDs)
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c.DB.Save(&queue)
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return spec.NewResponse()
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}
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func (c *Controller) ServeGetSong(r *http.Request) *spec.Response {
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params := r.Context().Value(CtxParams).(params.Params)
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user := r.Context().Value(CtxUser).(*db.User)
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id, err := params.GetID("id")
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if err != nil {
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return spec.NewError(10, "provide an `id` parameter")
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}
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var track db.Track
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err = c.DB.
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Where("id=?", id.Value).
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Preload("Album").
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Preload("Album.TagArtist").
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Preload("TrackStar", "user_id=?", user.ID).
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Preload("TrackRating", "user_id=?", user.ID).
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First(&track).
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Error
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if errors.Is(err, gorm.ErrRecordNotFound) {
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return spec.NewError(10, "couldn't find a track with that id")
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}
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sub := spec.NewResponse()
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sub.Track = spec.NewTrackByTags(&track, track.Album)
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return sub
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}
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func (c *Controller) ServeGetRandomSongs(r *http.Request) *spec.Response {
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params := r.Context().Value(CtxParams).(params.Params)
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user := r.Context().Value(CtxUser).(*db.User)
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var tracks []*db.Track
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q := c.DB.DB.
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Limit(params.GetOrInt("size", 10)).
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Preload("Album").
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Preload("Album.TagArtist").
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Preload("TrackStar", "user_id=?", user.ID).
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Preload("TrackRating", "user_id=?", user.ID).
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Joins("JOIN albums ON tracks.album_id=albums.id").
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Order(gorm.Expr("random()"))
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if year, err := params.GetInt("fromYear"); err == nil {
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q = q.Where("albums.tag_year >= ?", year)
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}
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if year, err := params.GetInt("toYear"); err == nil {
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q = q.Where("albums.tag_year <= ?", year)
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}
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if genre, err := params.Get("genre"); err == nil {
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q = q.Joins("JOIN track_genres ON track_genres.track_id=tracks.id")
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q = q.Joins("JOIN genres ON genres.id=track_genres.genre_id AND genres.name=?", genre)
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}
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if m := getMusicFolder(c.MusicPaths, params); m != "" {
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q = q.Where("albums.root_dir=?", m)
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}
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if err := q.Find(&tracks).Error; err != nil {
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return spec.NewError(10, "get random songs: %v", err)
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}
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sub := spec.NewResponse()
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sub.RandomTracks = &spec.RandomTracks{}
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sub.RandomTracks.List = make([]*spec.TrackChild, len(tracks))
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transcodeMIME, transcodeSuffix := streamGetTransPrefProfile(c.DB, user.ID, params.GetOr("c", ""))
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for i, track := range tracks {
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sub.RandomTracks.List[i] = spec.NewTrackByTags(track, track.Album)
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sub.RandomTracks.List[i].TranscodedContentType = transcodeMIME
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sub.RandomTracks.List[i].TranscodedSuffix = transcodeSuffix
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}
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return sub
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}
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var errNotATrack = errors.New("not a track")
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func (c *Controller) ServeJukebox(r *http.Request) *spec.Response { // nolint:gocyclo
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params := r.Context().Value(CtxParams).(params.Params)
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trackPaths := func(ids []specid.ID) ([]string, error) {
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var paths []string
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for _, id := range ids {
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r, err := specidpaths.Locate(c.DB, c.PodcastsPath, id)
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if err != nil {
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return nil, fmt.Errorf("find track by id: %w", err)
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}
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paths = append(paths, r.AbsPath())
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}
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return paths, nil
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}
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getSpecStatus := func() (*spec.JukeboxStatus, error) {
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status, err := c.Jukebox.GetStatus()
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if err != nil {
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return nil, fmt.Errorf("get status: %w", err)
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}
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return &spec.JukeboxStatus{
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CurrentIndex: status.CurrentIndex,
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Playing: status.Playing,
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Gain: float64(status.GainPct) / 100.0,
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Position: status.Position,
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}, nil
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}
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getSpecPlaylist := func() ([]*spec.TrackChild, error) {
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var ret []*spec.TrackChild
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playlist, err := c.Jukebox.GetPlaylist()
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if err != nil {
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return nil, fmt.Errorf("get playlist: %w", err)
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}
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for _, path := range playlist {
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file, err := specidpaths.Lookup(c.DB, PathsOf(c.MusicPaths), c.PodcastsPath, path)
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if err != nil {
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return nil, fmt.Errorf("fetch track: %w", err)
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}
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track, ok := file.(*db.Track)
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if !ok {
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return nil, fmt.Errorf("%q: %w", path, errNotATrack)
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}
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ret = append(ret, spec.NewTrackByTags(track, track.Album))
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}
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return ret, nil
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}
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switch act, _ := params.Get("action"); act {
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case "set":
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ids := params.GetOrIDList("id", nil)
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paths, err := trackPaths(ids)
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if err != nil {
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return spec.NewError(0, "error creating playlist items: %v", err)
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}
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if err := c.Jukebox.SetPlaylist(paths); err != nil {
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return spec.NewError(0, "error setting playlist: %v", err)
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}
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case "add":
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ids := params.GetOrIDList("id", nil)
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paths, err := trackPaths(ids)
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if err != nil {
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return spec.NewError(10, "error creating playlist items: %v", err)
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}
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if err := c.Jukebox.AppendToPlaylist(paths); err != nil {
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return spec.NewError(0, "error appending to playlist: %v", err)
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}
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case "clear":
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if err := c.Jukebox.ClearPlaylist(); err != nil {
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return spec.NewError(0, "error clearing playlist: %v", err)
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}
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case "remove":
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index, err := params.GetInt("index")
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if err != nil {
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return spec.NewError(10, "please provide an id for remove actions")
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}
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if err := c.Jukebox.RemovePlaylistIndex(index); err != nil {
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return spec.NewError(0, "error removing: %v", err)
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}
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case "stop":
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if err := c.Jukebox.Pause(); err != nil {
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return spec.NewError(0, "error stopping: %v", err)
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}
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case "start":
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if err := c.Jukebox.Play(); err != nil {
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return spec.NewError(0, "error starting: %v", err)
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}
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case "skip":
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index, err := params.GetInt("index")
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if err != nil {
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return spec.NewError(10, "please provide an index for skip actions")
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}
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offset, _ := params.GetInt("offset")
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if err := c.Jukebox.SkipToPlaylistIndex(index, offset); err != nil {
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return spec.NewError(0, "error skipping: %v", err)
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}
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case "get":
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specPlaylist, err := getSpecPlaylist()
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if err != nil {
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return spec.NewError(10, "error getting status tracks: %v", err)
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}
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status, err := getSpecStatus()
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if err != nil {
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return spec.NewError(10, "error getting status: %v", err)
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}
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sub := spec.NewResponse()
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sub.JukeboxPlaylist = &spec.JukeboxPlaylist{
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JukeboxStatus: status,
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List: specPlaylist,
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}
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return sub
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case "setGain":
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gain, err := params.GetFloat("gain")
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if err != nil {
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return spec.NewError(10, "please provide a valid gain param")
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}
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if err := c.Jukebox.SetVolumePct(int(math.Min(gain, 1) * 100)); err != nil {
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return spec.NewError(0, "error setting gain: %v", err)
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}
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}
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// all actions except get are expected to return a status
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status, err := getSpecStatus()
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if err != nil {
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return spec.NewError(10, "error getting status: %v", err)
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}
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sub := spec.NewResponse()
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sub.JukeboxStatus = status
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return sub
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}
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func (c *Controller) ServeGetLyrics(r *http.Request) *spec.Response {
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sub := spec.NewResponse()
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sub.Lyrics = &spec.Lyrics{}
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return sub
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}
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