+/*
+ * SomePlayer - An alternate music player for Maemo 5
+ * Copyright (C) 2010 Nikolay (somebody) Tischenko <niktischenko@gmail.com>
+ *
+ * This program 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 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
#include "filestorage.h"
+#include <QDir>
+#include <QDirIterator>
+#include <QFileInfo>
+#include <QTextStream>
+#include <QtXml/QtXml>
+// legacy _start_
+#include <QRegExp>
+// legacy _end_
+
+using namespace SomePlayer::Storage;
+using namespace SomePlayer::DataObjects;
+
+FileStorage::FileStorage(QString path) {
+ _path_prefix = path;
+
+ Playlist current = getCurrentPlaylist();
+ if (current.name() == PLAYLIST_BAD_NAME) {
+ current.setName(_CURRENT_PLAYLIST_NAME_);
+ saveCurrentPlaylist(current);
+ }
+}
+
+QList<Playlist> FileStorage::getPlaylists() {
+ QList<Playlist> stub;
+ return stub;
+}
+
+Playlist FileStorage::getPlaylist(QString name) {
+ if (name == _CURRENT_PLAYLIST_SUBST_)
+ name = _CURRENT_PLAYLIST_NAME_;
+ QFile playlistFile (_path_prefix + "/" + name + "." + _PLAYLIST_FILE_EXTENSION_OLD_); // remove OLD_ in next version
+ Playlist playlist;
+ playlist.setName(PLAYLIST_BAD_NAME);
+ // legacy _start_
+ if (playlistFile.exists()) {
+ qWarning() << "Old playlist file format deteced";
+ QRegExp meta_regexp;
+ meta_regexp.setPattern("#META\\ +\\[(\\d+)\\]\\[(\\d+)\\].*::(.+)::,::(.+)::,::(.+)::");
+ QRegExp path_regexp;
+ path_regexp.setPattern("#PATH (.+)");
+ playlistFile.open(QFile::ReadOnly);
+ QTextStream stream(&playlistFile);
+ QString buffer = stream.readLine();
+ if (buffer.startsWith("#SOMEPLAYLIST")) {
+ while (!stream.atEnd()) {
+ buffer = stream.readLine();
+ if (meta_regexp.indexIn(buffer) != -1) {
+ int seconds = meta_regexp.cap(2).toInt();
+ QString artist = meta_regexp.cap(3);
+ QString album = meta_regexp.cap(4);
+ QString title = meta_regexp.cap(5);
+ buffer = stream.readLine();
+ if (path_regexp.indexIn(buffer) != -1) {
+ QString source = path_regexp.cap(1);
+ TrackMetadata meta(title, artist, album, seconds);
+ Track track(meta, source);
+ playlist.addTrack(track);
+ }
+ }
+ }
+ }
+ playlist.setName(name);
+ qWarning() << "Saving playlist in new format";
+ savePlaylist(playlist);
+ playlistFile.close();
+ playlistFile.remove();
+ } else {
+ playlistFile.setFileName(_path_prefix + "/" + name + "." + _PLAYLIST_FILE_EXTENSION_);
+ // legacy _end_
+ if (playlistFile.exists()) {
+ playlist.setName(name);
+ QDomDocument doc;
+ playlistFile.open(QFile::ReadOnly);
+ doc.setContent(&playlistFile);
+ playlistFile.close();
+ QDomElement eplaylist = doc.documentElement();
+ if (eplaylist.tagName() == "playlist") {
+ QDomElement etracklist = eplaylist.firstChildElement("trackList");
+ if (!etracklist.isNull()) {
+ QDomElement etrack = etracklist.firstChildElement("track");
+ while (!etrack.isNull()) {
+ QDomElement elocation = etrack.firstChildElement("location");
+ QDomElement eextension = etrack.firstChildElement("extension");
+ if (!eextension.isNull()) {
+ QDomElement ecl_clip = eextension.firstChildElement("cl:clip");
+ if (!ecl_clip.isNull()) {
+ QString artist = ecl_clip.attribute("artist");
+ QString album = ecl_clip.attribute("album");
+ QString title = ecl_clip.attribute("title");
+ QDomElement eduration = etrack.firstChildElement("duration");
+ if (!eduration.isNull()) {
+ QVariant duration = eduration.text();
+ QByteArray basource;
+ basource.append(elocation.text());
+ QString source = QUrl::fromEncoded(basource).toLocalFile();
+ TrackMetadata meta(title, artist, album, duration.toInt()/1000);
+ Track track(meta, source);
+ playlist.addTrack(track);
+ }
+ }
+ }
+ etrack = etrack.nextSiblingElement("track");
+ }
+ }
+ }
+ // legacy _start_
+ }
+ // legacy _end_
+ }
+ return playlist;
+}
+
+QStringList FileStorage::getPlaylistsNames() {
+ QDir directory(_path_prefix);
+ QDirIterator iterator(directory, QDirIterator::FollowSymlinks);
+ QStringList playlistNames;
+ while (iterator.hasNext()) {
+ QString entry = iterator.next();
+ QFileInfo info(entry);
+ QString suffix = info.suffix().toLower();
+ if (suffix == _PLAYLIST_FILE_EXTENSION_) {
+ QString name = info.fileName().replace(QString(".%1").arg(_PLAYLIST_FILE_EXTENSION_), "", Qt::CaseInsensitive);
+ if (name == _CURRENT_PLAYLIST_NAME_)
+ name = _CURRENT_PLAYLIST_SUBST_;
+ playlistNames.append(name);
+ }
+ // legacy _start_
+ else if (suffix == _PLAYLIST_FILE_EXTENSION_OLD_){
+ QString name = info.fileName().replace(QString(".%1").arg(_PLAYLIST_FILE_EXTENSION_OLD_), "", Qt::CaseInsensitive);
+ if (name == _CURRENT_PLAYLIST_NAME_)
+ name = _CURRENT_PLAYLIST_SUBST_;
+ playlistNames.append(name);
+ }
+ // legacy _end_
+ }
+ return playlistNames;
+}
+
+void FileStorage::savePlaylist(Playlist playlist) {
+ QString name = playlist.name();
+ if (playlist.name() == _CURRENT_PLAYLIST_SUBST_)
+ name = _CURRENT_PLAYLIST_NAME_;
+ QString filename = _path_prefix + "/" + name + "."_PLAYLIST_FILE_EXTENSION_;
+ QFile playlistFile(filename);
+ if (playlistFile.exists()) {
+ playlistFile.remove();
+ }
+ playlistFile.open(QFile::WriteOnly);
+ QTextStream stream(&playlistFile);
+ QDomDocument doc;
+ QDomElement root = doc.createElement("playlist");
+ root.setAttribute("version", "1");
+ root.setAttribute("xmlns", "http://xspf.org/ns/0/");
+ root.setAttribute("xmlns:cl", "http://example.com");
+ QDomElement tracklist = doc.createElement("trackList");
+ foreach (Track track, playlist.tracks()) {
+ QDomElement etrack = doc.createElement("track");
+ QDomElement elocation = doc.createElement("location");
+ QDomElement eextension = doc.createElement("extension");
+ QDomElement ecl_clip = doc.createElement("cl:clip");
+ QDomElement etitle = doc.createElement("title");
+ QDomElement eduration = doc.createElement("duration");
+ etitle.appendChild(doc.createTextNode(QString("%1 - %2").arg(track.metadata().artist()).arg(track.metadata().title())));
+ ecl_clip.setAttribute("title", track.metadata().title());
+ ecl_clip.setAttribute("artist", track.metadata().artist());
+ ecl_clip.setAttribute("album", track.metadata().album());
+ eextension.appendChild(ecl_clip);
+ eextension.setAttribute("application", "http://example.com");
+ elocation.appendChild(doc.createTextNode(QString("%1").arg(QUrl::fromLocalFile(track.source()).toEncoded().constData())));
+ eduration.appendChild(doc.createTextNode(QString("%1").arg(track.metadata().length()*1000)));
+ etrack.appendChild(elocation);
+ etrack.appendChild(eextension);
+ etrack.appendChild(etitle);
+ etrack.appendChild(eduration);
+ tracklist.appendChild(etrack);
+ }
+ root.appendChild(tracklist);
+ doc.appendChild(root);
+ stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
+ stream << doc.toString();
+}
+
+void FileStorage::removePlaylist(Playlist playlist) {
+ QString filename = _path_prefix + "/" + playlist.name() + "." + _PLAYLIST_FILE_EXTENSION_;
+ QFile file(filename);
+ file.remove();
+}
+
+void FileStorage::removePlaylist(QString name) {
+ QString filename = _path_prefix + "/" + (name == _CURRENT_PLAYLIST_SUBST_ ? _CURRENT_PLAYLIST_NAME_ : name)
+ + "." + _PLAYLIST_FILE_EXTENSION_;
+ QFile file(filename);
+ file.remove();
+}
+
+Playlist FileStorage::getCurrentPlaylist() {
+ return getPlaylist(_CURRENT_PLAYLIST_NAME_);
+}
+
+void FileStorage::saveCurrentPlaylist(Playlist playlist) {
+ playlist.setName(_CURRENT_PLAYLIST_NAME_);
+ savePlaylist(playlist);
+}
+
+LastPlayed FileStorage::getLastPlayedForCurPlaylist() {
+ QFile playlistFile (_path_prefix + "/" + _CURRENT_PLAYLIST_NAME_ + "." + _PLAYLIST_FILE_EXTENSION_);
+ int trackId = 0;
+ int position = 0;
+ if (playlistFile.exists()) {
+ QDomDocument doc;
+ playlistFile.open(QFile::ReadOnly);
+ doc.setContent(&playlistFile);
+ playlistFile.close();
+ QDomElement eplaylist = doc.documentElement();
+ if (eplaylist.tagName() == "playlist") {
+ QDomElement eextension = eplaylist.firstChildElement("extension");
+ if (!eextension.isNull()) {
+ QDomElement elastplay = eextension.firstChildElement("lastplay");
+ if (!elastplay.isNull()) {
+ trackId = elastplay.attribute("track_id").toInt();
+ position = elastplay.attribute("position").toInt();
+ }
+ }
+ }
+ }
+ LastPlayed lp = {trackId, position};
+ return lp;
+}
+
+void FileStorage::saveLastPlayedForCurPlaylist(LastPlayed lastplayed) {
+ QFile playlistFile (_path_prefix + "/" + _CURRENT_PLAYLIST_NAME_ + "." + _PLAYLIST_FILE_EXTENSION_);
+ QDomDocument doc;
+ if (playlistFile.exists()) {
+ playlistFile.open(QFile::ReadOnly);
+ doc.setContent(&playlistFile);
+ playlistFile.close();
+ QDomElement eplaylist = doc.documentElement();
+ if (eplaylist.tagName() == "playlist") {
+ QDomElement eextension = eplaylist.firstChildElement("extension");
+ if (eextension.isNull()) {
+ eextension = doc.createElement("extension");
+ eextension.setAttribute("application", "http://example.com");
+ QDomElement elastplay = doc.createElement("lastplay");
+ elastplay.setAttribute("track_id", lastplayed.trackId);
+ elastplay.setAttribute("position", lastplayed.position);
+ eextension.appendChild(elastplay);
+ eplaylist.appendChild(eextension);
+ } else {
+ QDomElement elastplay = eextension.firstChildElement("lastplay");
+ if (elastplay.isNull()) {
+ elastplay = doc.createElement("lastplay");
+ eextension.appendChild(elastplay);
+ }
+ elastplay.setAttribute("track_id", lastplayed.trackId);
+ elastplay.setAttribute("position", lastplayed.position);
+ }
+ }
+ }
+ playlistFile.open(QFile::WriteOnly);
+ QTextStream stream(&playlistFile);
+ stream << doc.toString();
+}