Files
vibesonic/internal/subsonic/playqueue_by_index.go

91 lines
2.6 KiB
Go

package subsonic
import (
"encoding/json"
"git.noroutes.net/NoRoutes/vibetunes/internal/database"
)
func init() {
registerExtension("indexBasedQueue", 1)
register("getPlayQueueByIndex", handleGetPlayQueueByIndex)
register("savePlayQueueByIndex", handleSavePlayQueueByIndex)
}
// The indexBasedQueue extension shares the same play_queues storage as
// the classic getPlayQueue/savePlayQueue (internal/subsonic/playqueue.go)
// — the table has always tracked the current *index*, not a song ID; the
// classic endpoints are the ones that lossily resolve index -> song ID
// for their "current" attribute. Duplicate song IDs in the queue are
// therefore already handled correctly by construction: saving stores a
// plain ordered ID list, and both current-track values (index here,
// looked-up ID for the classic endpoint) are derived from the same
// unambiguous index.
func handleGetPlayQueueByIndex(rc *Context) *apiError {
db := rc.Server.DB
q, err := database.GetPlayQueue(db, rc.User.ID)
if err == database.ErrNotFound {
rc.Response = newResponse()
return nil
}
if err != nil {
return newError(ErrGeneric, err.Error())
}
var ids []string
if uerr := json.Unmarshal([]byte(q.SongIDsJSON), &ids); uerr != nil {
return newError(ErrGeneric, "corrupt saved play queue")
}
out := &PlayQueueByIndex{
CurrentIndex: q.CurrentIndex,
Position: int64(q.PositionMs),
Username: rc.User.Username,
Changed: isoTime(q.UpdatedAt),
ChangedBy: q.Client,
}
for _, id := range ids {
song, serr := database.GetSong(db, id)
if serr != nil {
continue
}
mf, merr := database.GetMediaFile(db, song.MediaFileID)
if merr != nil {
continue
}
out.Entry = append(out.Entry, childFromSong(db, song, mf, albumOfSong(db, song), rc.User.ID))
}
rc.Response = newResponse()
rc.Response.PlayQueueByIndex = out
return nil
}
func handleSavePlayQueueByIndex(rc *Context) *apiError {
ids := rc.Params.GetAll("id")
position := rc.Params.Int("position", 0)
client := rc.Params.Get("c")
currentIndex := 0
if len(ids) > 0 {
var aerr *apiError
currentIndex, aerr = rc.Params.RequiredInt("currentIndex")
if aerr != nil {
return aerr
}
if currentIndex < 0 || currentIndex >= len(ids) {
return newError(ErrGeneric, "currentIndex out of range")
}
}
encoded, err := json.Marshal(ids)
if err != nil {
return newError(ErrGeneric, err.Error())
}
if err := database.SavePlayQueue(rc.Server.DB, rc.User.ID, string(encoded), currentIndex, position, client); err != nil {
return newError(ErrGeneric, err.Error())
}
rc.Response = newResponse()
return nil
}