git.maemo.org Git - someplayer/blob - src/filestorage.cpp

   1 /*
   2  * SomePlayer - An alternate music player for Maemo 5
   3  * Copyright (C) 2010 Nikolay (somebody) Tischenko <niktischenko@gmail.com>
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18  */
  19
  20 #include "filestorage.h"
  21 #include <QDir>
  22 #include <QDirIterator>
  23 #include <QFileInfo>
  24 #include <QTextStream>
  25 #include <QRegExp>
  26
  27 using namespace SomePlayer::Storage;
  28 using namespace SomePlayer::DataObjects;
  29
  30 FileStorage::FileStorage(QString path) {
  31         _path_prefix = path;
  32         _meta_regexp.setPattern("#META\\ +\\[(\\d+)\\]\\[(\\d+)\\].*::(.+)::,::(.+)::,::(.+)::");
  33         _path_regexp.setPattern("#PATH (.+)");
  34
  35         Playlist current = getCurrentPlaylist();
  36         if (current.name() == PLAYLIST_BAD_NAME) {
  37                 current.setName(_CURRENT_PLAYLIST_NAME_);
  38                 saveCurrentPlaylist(current);
  39         }
  40 }
  41
  42 QList<Playlist> FileStorage::getPlaylists() {
  43         QList<Playlist> stub;
  44         return stub;
  45 }
  46
  47 Playlist FileStorage::getPlaylist(QString name) {
  48         if (name == _CURRENT_PLAYLIST_SUBST_)
  49                 name = _CURRENT_PLAYLIST_NAME_;
  50         QFile playlistFile (_path_prefix+"/"+name+"."+_PLAYLIST_FILE_EXTENSION_);
  51         Playlist playlist;
  52         playlist.setName(PLAYLIST_BAD_NAME);
  53         if (playlistFile.exists()) {
  54                 playlist.setName(name);
  55                 playlistFile.open(QFile::ReadOnly);
  56                 QTextStream stream(&playlistFile);
  57                 QString buffer = stream.readLine();
  58                 if (buffer.startsWith(_PLAYLIST_SIGNATURE_)) {
  59                         while (!stream.atEnd()) {
  60                                 buffer = stream.readLine();
  61                                 if (_meta_regexp.indexIn(buffer) != -1) {
  62                                         int id = _meta_regexp.cap(1).toInt();
  63                                         int seconds = _meta_regexp.cap(2).toInt();
  64                                         QString artist = _meta_regexp.cap(3);
  65                                         QString album = _meta_regexp.cap(4);
  66                                         QString title = _meta_regexp.cap(5);
  67                                         buffer = stream.readLine();
  68                                         if (_path_regexp.indexIn(buffer) != -1) {
  69                                                 QString source = _path_regexp.cap(1);
  70                                                 TrackMetadata meta(title, artist, album, seconds);
  71                                                 Track track(id, meta, source);
  72                                                 playlist.addTrack(track);
  73                                         }
  74                                 }
  75                         }
  76                 }
  77         }
  78         return playlist;
  79 }
  80
  81 QStringList FileStorage::getPlaylistsNames() {
  82         QDir directory(_path_prefix);
  83         QDirIterator iterator(directory, QDirIterator::FollowSymlinks);
  84         QStringList playlistNames;
  85         while (iterator.hasNext()) {
  86                 QString entry = iterator.next();
  87                 QFileInfo info(entry);
  88                 QString suffix = info.suffix().toLower();
  89                 if (suffix == _PLAYLIST_FILE_EXTENSION_) {
  90                         QString name = info.fileName().replace(QString(".%1").arg(_PLAYLIST_FILE_EXTENSION_), "", Qt::CaseInsensitive);
  91                         if (name == _CURRENT_PLAYLIST_NAME_)
  92                             name = _CURRENT_PLAYLIST_SUBST_;
  93                         playlistNames.append(name);
  94                 }
  95         }
  96         return playlistNames;
  97 }
  98
  99 void FileStorage::savePlaylist(Playlist playlist) {
 100         QString name = playlist.name();
 101         if (playlist.name() == _CURRENT_PLAYLIST_SUBST_)
 102                 name = _CURRENT_PLAYLIST_NAME_;
 103         QString filename = _path_prefix + "/" +name+"."_PLAYLIST_FILE_EXTENSION_;
 104         QFile playlistFile(filename);
 105         if (playlistFile.exists()) {
 106                 playlistFile.remove();
 107         }
 108         playlistFile.open(QFile::WriteOnly);
 109         QTextStream stream(&playlistFile);
 110         stream << _PLAYLIST_SIGNATURE_ << endl;
 111         const QList<Track> &tracks = playlist.tracks();
 112         foreach (Track track, tracks) {
 113                 stream << _PLAYLIST_META_KEYWORD_ << " [" << track.id() << "]" << "[" << track.metadata().length() << "],::"
 114                                 << track.metadata().artist() << "::,::" << track.metadata().album() << "::,::"
 115                                 << track.metadata().title() << "::" << endl;
 116                 stream << _PLAYLIST_PATH_KEYWORD_ << " " << track.source() << endl;
 117         }
 118 }
 119
 120 void FileStorage::removePlaylist(Playlist playlist) {
 121         QString filename = _path_prefix + "/" + playlist.name() + "." + _PLAYLIST_FILE_EXTENSION_;
 122         QFile file(filename);
 123         file.remove();
 124 }
 125
 126 void FileStorage::removePlaylist(QString name) {
 127         QString filename = _path_prefix + "/" + (name == _CURRENT_PLAYLIST_SUBST_ ? _CURRENT_PLAYLIST_NAME_ : name)
 128                            + "." + _PLAYLIST_FILE_EXTENSION_;
 129         QFile file(filename);
 130         file.remove();
 131 }
 132
 133 Playlist FileStorage::getCurrentPlaylist() {
 134         return getPlaylist(_CURRENT_PLAYLIST_NAME_);
 135 }
 136
 137 void FileStorage::saveCurrentPlaylist(Playlist playlist) {
 138         playlist.setName(_CURRENT_PLAYLIST_NAME_);
 139         savePlaylist(playlist);
 140 }