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Diffstat (limited to 'src/DatabasePrint.cxx')
| -rw-r--r-- | src/DatabasePrint.cxx | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/src/DatabasePrint.cxx b/src/DatabasePrint.cxx new file mode 100644 index 000000000..2c3fcc9f8 --- /dev/null +++ b/src/DatabasePrint.cxx @@ -0,0 +1,231 @@ +/* + * Copyright (C) 2003-2013 The Music Player Daemon Project + * http://www.musicpd.org + * + * 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 "config.h" +#include "DatabasePrint.hxx" +#include "DatabaseSelection.hxx" +#include "SongFilter.hxx" +#include "PlaylistVector.hxx" +#include "SongPrint.hxx" +#include "TimePrint.hxx" +#include "Directory.hxx" +#include "Client.hxx" + +extern "C" { +#include "song.h" +#include "tag.h" +} + +#include "DatabaseGlue.hxx" +#include "DatabasePlugin.hxx" + +#include <functional> + +static bool +PrintDirectory(Client *client, const Directory &directory) +{ + if (!directory.IsRoot()) + client_printf(client, "directory: %s\n", directory.GetPath()); + + return true; +} + +static void +print_playlist_in_directory(Client *client, + const Directory &directory, + const char *name_utf8) +{ + if (directory.IsRoot()) + client_printf(client, "playlist: %s\n", name_utf8); + else + client_printf(client, "playlist: %s/%s\n", + directory.GetPath(), name_utf8); +} + +static bool +PrintSongBrief(Client *client, song &song) +{ + assert(song.parent != NULL); + + song_print_uri(client, &song); + + if (song.tag != NULL && song.tag->has_playlist) + /* this song file has an embedded CUE sheet */ + print_playlist_in_directory(client, *song.parent, song.uri); + + return true; +} + +static bool +PrintSongFull(Client *client, song &song) +{ + assert(song.parent != NULL); + + song_print_info(client, &song); + + if (song.tag != NULL && song.tag->has_playlist) + /* this song file has an embedded CUE sheet */ + print_playlist_in_directory(client, *song.parent, song.uri); + + return true; +} + +static bool +PrintPlaylistBrief(Client *client, + const PlaylistInfo &playlist, + const Directory &directory) +{ + print_playlist_in_directory(client, directory, playlist.name.c_str()); + return true; +} + +static bool +PrintPlaylistFull(Client *client, + const PlaylistInfo &playlist, + const Directory &directory) +{ + print_playlist_in_directory(client, directory, playlist.name.c_str()); + + if (playlist.mtime > 0) + time_print(client, "Last-Modified", playlist.mtime); + + return true; +} + +bool +db_selection_print(Client *client, const DatabaseSelection &selection, + bool full, GError **error_r) +{ + const Database *db = GetDatabase(error_r); + if (db == nullptr) + return false; + + using namespace std::placeholders; + const auto d = selection.filter == nullptr + ? std::bind(PrintDirectory, client, _1) + : VisitDirectory(); + const auto s = std::bind(full ? PrintSongFull : PrintSongBrief, + client, _1); + const auto p = selection.filter == nullptr + ? std::bind(full ? PrintPlaylistFull : PrintPlaylistBrief, + client, _1, _2) + : VisitPlaylist(); + + return db->Visit(selection, d, s, p, error_r); +} + +struct SearchStats { + int numberOfSongs; + unsigned long playTime; +}; + +static void printSearchStats(Client *client, SearchStats *stats) +{ + client_printf(client, "songs: %i\n", stats->numberOfSongs); + client_printf(client, "playtime: %li\n", stats->playTime); +} + +static bool +stats_visitor_song(SearchStats &stats, song &song) +{ + stats.numberOfSongs++; + stats.playTime += song_get_duration(&song); + + return true; +} + +bool +searchStatsForSongsIn(Client *client, const char *name, + const SongFilter *filter, + GError **error_r) +{ + const Database *db = GetDatabase(error_r); + if (db == nullptr) + return false; + + const DatabaseSelection selection(name, true, filter); + + SearchStats stats; + stats.numberOfSongs = 0; + stats.playTime = 0; + + using namespace std::placeholders; + const auto f = std::bind(stats_visitor_song, std::ref(stats), + _1); + if (!db->Visit(selection, f, error_r)) + return false; + + printSearchStats(client, &stats); + return true; +} + +bool +printAllIn(Client *client, const char *uri_utf8, GError **error_r) +{ + const DatabaseSelection selection(uri_utf8, true); + return db_selection_print(client, selection, false, error_r); +} + +bool +printInfoForAllIn(Client *client, const char *uri_utf8, + GError **error_r) +{ + const DatabaseSelection selection(uri_utf8, true); + return db_selection_print(client, selection, true, error_r); +} + +static bool +PrintSongURIVisitor(Client *client, song &song) +{ + song_print_uri(client, &song); + + return true; +} + +static bool +PrintUniqueTag(Client *client, enum tag_type tag_type, + const char *value) +{ + client_printf(client, "%s: %s\n", tag_item_names[tag_type], value); + return true; +} + +bool +listAllUniqueTags(Client *client, int type, + const SongFilter *filter, + GError **error_r) +{ + const Database *db = GetDatabase(error_r); + if (db == nullptr) + return false; + + const DatabaseSelection selection("", true, filter); + + if (type == LOCATE_TAG_FILE_TYPE) { + using namespace std::placeholders; + const auto f = std::bind(PrintSongURIVisitor, client, _1); + return db->Visit(selection, f, error_r); + } else { + using namespace std::placeholders; + const auto f = std::bind(PrintUniqueTag, client, + (enum tag_type)type, _1); + return db->VisitUniqueTags(selection, (enum tag_type)type, + f, error_r); + } +} |