Initial Commit

1 files changed, 187 insertions, 0 deletions

diff --git a/subsonic-main/src/main/java/net/sourceforge/subsonic/ajax/PlaylistService.java b/subsonic-main/src/main/java/net/sourceforge/subsonic/ajax/PlaylistService.java
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+/*
+ This file is part of Subsonic.
+
+ Subsonic is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ Subsonic is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Subsonic.  If not, see <http://www.gnu.org/licenses/>.
+
+ Copyright 2009 (C) Sindre Mehus
+ */
+package net.sourceforge.subsonic.ajax;
+
+import java.text.DateFormat;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+import java.util.Locale;
+
+import javax.servlet.http.HttpServletRequest;
+
+import net.sourceforge.subsonic.dao.MediaFileDao;
+import net.sourceforge.subsonic.service.SettingsService;
+import org.directwebremoting.WebContextFactory;
+
+import net.sourceforge.subsonic.domain.MediaFile;
+import net.sourceforge.subsonic.domain.Playlist;
+import net.sourceforge.subsonic.service.MediaFileService;
+import net.sourceforge.subsonic.service.SecurityService;
+
+/**
+ * Provides AJAX-enabled services for manipulating playlists.
+ * This class is used by the DWR framework (http://getahead.ltd.uk/dwr/).
+ *
+ * @author Sindre Mehus
+ */
+public class PlaylistService {
+
+    private MediaFileService mediaFileService;
+    private SecurityService securityService;
+    private net.sourceforge.subsonic.service.PlaylistService playlistService;
+    private MediaFileDao mediaFileDao;
+    private SettingsService settingsService;
+
+    public List<Playlist> getReadablePlaylists() {
+        HttpServletRequest request = WebContextFactory.get().getHttpServletRequest();
+        String username = securityService.getCurrentUsername(request);
+        return playlistService.getReadablePlaylistsForUser(username);
+    }
+
+    public List<Playlist> getWritablePlaylists() {
+        HttpServletRequest request = WebContextFactory.get().getHttpServletRequest();
+        String username = securityService.getCurrentUsername(request);
+        return playlistService.getWritablePlaylistsForUser(username);
+    }
+
+    public PlaylistInfo getPlaylist(int id) {
+        HttpServletRequest request = WebContextFactory.get().getHttpServletRequest();
+
+        Playlist playlist = playlistService.getPlaylist(id);
+        List<MediaFile> files = playlistService.getFilesInPlaylist(id);
+
+        String username = securityService.getCurrentUsername(request);
+        mediaFileService.populateStarredDate(files, username);
+        return new PlaylistInfo(playlist, createEntries(files));
+    }
+
+    public List<Playlist> createEmptyPlaylist() {
+        HttpServletRequest request = WebContextFactory.get().getHttpServletRequest();
+        Locale locale = settingsService.getLocale();
+        DateFormat dateFormat = DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.SHORT, locale);
+
+        Date now = new Date();
+        Playlist playlist = new Playlist();
+        playlist.setUsername(securityService.getCurrentUsername(request));
+        playlist.setCreated(now);
+        playlist.setChanged(now);
+        playlist.setPublic(false);
+        playlist.setName(dateFormat.format(now));
+
+        playlistService.createPlaylist(playlist);
+        return getReadablePlaylists();
+    }
+
+    public void appendToPlaylist(int playlistId, List<Integer> mediaFileIds) {
+        List<MediaFile> files = playlistService.getFilesInPlaylist(playlistId);
+        for (Integer mediaFileId : mediaFileIds) {
+            MediaFile file = mediaFileService.getMediaFile(mediaFileId);
+            if (file != null) {
+                files.add(file);
+            }
+        }
+        playlistService.setFilesInPlaylist(playlistId, files);
+    }
+    
+    private List<PlaylistInfo.Entry> createEntries(List<MediaFile> files) {
+        List<PlaylistInfo.Entry> result = new ArrayList<PlaylistInfo.Entry>();
+        for (MediaFile file : files) {
+            result.add(new PlaylistInfo.Entry(file.getId(), file.getTitle(), file.getArtist(), file.getAlbumName(),
+                    file.getDurationString(), file.getStarredDate() != null));
+        }
+
+        return result;
+    }
+
+    public PlaylistInfo toggleStar(int id, int index) {
+        HttpServletRequest request = WebContextFactory.get().getHttpServletRequest();
+        String username = securityService.getCurrentUsername(request);
+        List<MediaFile> files = playlistService.getFilesInPlaylist(id);
+        MediaFile file = files.get(index);
+
+        boolean starred = mediaFileDao.getMediaFileStarredDate(file.getId(), username) != null;
+        if (starred) {
+            mediaFileDao.unstarMediaFile(file.getId(), username);
+        } else {
+            mediaFileDao.starMediaFile(file.getId(), username);
+        }
+        return getPlaylist(id);
+    }
+
+    public PlaylistInfo remove(int id, int index) {
+        List<MediaFile> files = playlistService.getFilesInPlaylist(id);
+        files.remove(index);
+        playlistService.setFilesInPlaylist(id, files);
+        return getPlaylist(id);
+    }
+
+    public PlaylistInfo up(int id, int index) {
+        List<MediaFile> files = playlistService.getFilesInPlaylist(id);
+        if (index > 0) {
+            MediaFile file = files.remove(index);
+            files.add(index - 1, file);
+            playlistService.setFilesInPlaylist(id, files);
+        }
+        return getPlaylist(id);
+    }
+
+    public PlaylistInfo down(int id, int index) {
+        List<MediaFile> files = playlistService.getFilesInPlaylist(id);
+        if (index < files.size() - 1) {
+            MediaFile file = files.remove(index);
+            files.add(index + 1, file);
+            playlistService.setFilesInPlaylist(id, files);
+        }
+        return getPlaylist(id);
+    }
+
+    public void deletePlaylist(int id) {
+        playlistService.deletePlaylist(id);
+    }
+
+    public PlaylistInfo updatePlaylist(int id, String name, String comment, boolean isPublic) {
+        Playlist playlist = playlistService.getPlaylist(id);
+        playlist.setName(name);
+        playlist.setComment(comment);
+        playlist.setPublic(isPublic);
+        playlistService.updatePlaylist(playlist);
+        return getPlaylist(id);
+    }
+
+    public void setPlaylistService(net.sourceforge.subsonic.service.PlaylistService playlistService) {
+        this.playlistService = playlistService;
+    }
+
+    public void setSecurityService(SecurityService securityService) {
+        this.securityService = securityService;
+    }
+
+    public void setMediaFileService(MediaFileService mediaFileService) {
+        this.mediaFileService = mediaFileService;
+    }
+
+    public void setMediaFileDao(MediaFileDao mediaFileDao) {
+        this.mediaFileDao = mediaFileDao;
+    }
+
+    public void setSettingsService(SettingsService settingsService) {
+        this.settingsService = settingsService;
+    }
+}
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