Add option to download playlist

core/archiver.go

@@ -16,6 +16,7 @@ import (
 type Archiver interface {
 	ZipAlbum(ctx context.Context, id string, w io.Writer) error
 	ZipArtist(ctx context.Context, id string, w io.Writer) error
+	ZipPlaylist(ctx context.Context, id string, w io.Writer) error
 }
 
 func NewArchiver(ds model.DataStore) Archiver {
@@ -26,13 +27,15 @@ type archiver struct {
 	ds model.DataStore
 }
 
+type createHeader func(idx int, mf model.MediaFile) *zip.FileHeader
+
 func (a *archiver) ZipAlbum(ctx context.Context, id string, out io.Writer) error {
 	mfs, err := a.ds.MediaFile(ctx).FindByAlbum(id)
 	if err != nil {
 		log.Error(ctx, "Error loading mediafiles from album", "id", id, err)
 		return err
 	}
-	return a.zipTracks(ctx, id, out, mfs)
+	return a.zipTracks(ctx, id, out, mfs, a.createHeader)
 }
 
 func (a *archiver) ZipArtist(ctx context.Context, id string, out io.Writer) error {
@@ -44,13 +47,22 @@ func (a *archiver) ZipArtist(ctx context.Context, id string, out io.Writer) erro
 		log.Error(ctx, "Error loading mediafiles from artist", "id", id, err)
 		return err
 	}
-	return a.zipTracks(ctx, id, out, mfs)
+	return a.zipTracks(ctx, id, out, mfs, a.createHeader)
+}
+
+func (a *archiver) ZipPlaylist(ctx context.Context, id string, out io.Writer) error {
+	pls, err := a.ds.Playlist(ctx).Get(id)
+	if err != nil {
+		log.Error(ctx, "Error loading mediafiles from playlist", "id", id, err)
+		return err
+	}
+	return a.zipTracks(ctx, id, out, pls.Tracks, a.createPlaylistHeader)
 }
 
-func (a *archiver) zipTracks(ctx context.Context, id string, out io.Writer, mfs model.MediaFiles) error {
+func (a *archiver) zipTracks(ctx context.Context, id string, out io.Writer, mfs model.MediaFiles, ch createHeader) error {
 	z := zip.NewWriter(out)
-	for _, mf := range mfs {
-		_ = a.addFileToZip(ctx, z, mf)
+	for idx, mf := range mfs {
+		_ = a.addFileToZip(ctx, z, mf, ch(idx, mf))
 	}
 	err := z.Close()
 	if err != nil {
@@ -59,13 +71,26 @@ func (a *archiver) zipTracks(ctx context.Context, id string, out io.Writer, mfs
 	return err
 }
 
-func (a *archiver) addFileToZip(ctx context.Context, z *zip.Writer, mf model.MediaFile) error {
+func (a *archiver) createHeader(idx int, mf model.MediaFile) *zip.FileHeader {
 	_, file := filepath.Split(mf.Path)
-	w, err := z.CreateHeader(&zip.FileHeader{
+	return &zip.FileHeader{
 		Name:     fmt.Sprintf("%s/%s", mf.Album, file),
 		Modified: mf.UpdatedAt,
 		Method:   zip.Store,
-	})
+	}
+}
+
+func (a *archiver) createPlaylistHeader(idx int, mf model.MediaFile) *zip.FileHeader {
+	_, file := filepath.Split(mf.Path)
+	return &zip.FileHeader{
+		Name:     fmt.Sprintf("%d - %s-%s", idx, mf.AlbumArtist, file),
+		Modified: mf.UpdatedAt,
+		Method:   zip.Store,
+	}
+}
+
+func (a *archiver) addFileToZip(ctx context.Context, z *zip.Writer, mf model.MediaFile, zh *zip.FileHeader) error {
+	w, err := z.CreateHeader(zh)
 	if err != nil {
 		log.Error(ctx, "Error creating zip entry", "file", mf.Path, err)
 		return err

server/subsonic/helpers.go

@@ -269,6 +269,10 @@ func getEntityByID(ctx context.Context, ds model.DataStore, id string) (interfac
 	if err == nil {
 		return al, nil
 	}
+	pls, err := ds.Playlist(ctx).Get(id)
+	if err == nil {
+		return pls, nil
+	}
 	mf, err := ds.MediaFile(ctx).Get(id)
 	if err == nil {
 		return mf, nil

server/subsonic/stream.go

@@ -109,6 +109,9 @@ func (c *StreamController) Download(w http.ResponseWriter, r *http.Request) (*re
 	case *model.Artist:
 		setHeaders(v.Name)
 		err = c.archiver.ZipArtist(ctx, id, w)
+	case *model.Playlist:
+		setHeaders(v.Name)
+		err = c.archiver.ZipPlaylist(ctx, id, w)
 	default:
 		err = model.ErrNotFound
 	}

ui/src/album/AlbumActions.js

@@ -1,3 +1,5 @@
+import React from 'react'
+import { useDispatch } from 'react-redux'
 import {
   Button,
   sanitizeListRestProps,
@@ -7,8 +9,6 @@ import {
 import PlayArrowIcon from '@material-ui/icons/PlayArrow'
 import ShuffleIcon from '@material-ui/icons/Shuffle'
 import CloudDownloadOutlinedIcon from '@material-ui/icons/CloudDownloadOutlined'
-import React from 'react'
-import { useDispatch } from 'react-redux'
 import { playTracks, shuffleTracks } from '../audioplayer'
 import subsonic from '../subsonic'
 

ui/src/playlist/PlaylistActions.js

@@ -1,3 +1,5 @@
+import React from 'react'
+import { useDispatch } from 'react-redux'
 import {
   Button,
   sanitizeListRestProps,
@@ -6,16 +8,17 @@ import {
 } from 'react-admin'
 import PlayArrowIcon from '@material-ui/icons/PlayArrow'
 import ShuffleIcon from '@material-ui/icons/Shuffle'
-import React from 'react'
-import { useDispatch } from 'react-redux'
+import CloudDownloadOutlinedIcon from '@material-ui/icons/CloudDownloadOutlined'
 import { playTracks, shuffleTracks } from '../audioplayer'
+import subsonic from '../subsonic'
 
 const PlaylistActions = ({
   className,
   ids,
   data,
   exporter,
   permanentFilter,
+  playlistId,
   ...rest
 }) => {
   const dispatch = useDispatch()
@@ -39,6 +42,14 @@ const PlaylistActions = ({
       >
         <ShuffleIcon />
       </Button>
+      <Button
+        onClick={() => {
+          subsonic.download(playlistId)
+        }}
+        label={translate('resources.album.actions.download')}
+      >
+        <CloudDownloadOutlinedIcon />
+      </Button>
     </TopToolbar>
   )
 }

ui/src/playlist/PlaylistShow.js

@@ -26,7 +26,7 @@ const PlaylistShow = (props) => {
         playlistId={props.id}
         readOnly={isReadOnly(record && record.owner)}
         title={<Title subTitle={record && record.name} />}
-        actions={<PlaylistActions />}
+        actions={<PlaylistActions playlistId={props.id} />}
         filter={{ playlist_id: props.id }}
         resource={'playlistTrack'}
         exporter={false}