310 lines
7.8 KiB
C++
310 lines
7.8 KiB
C++
/*
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* Copyright 2003-2022 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include "PlaylistCommands.hxx"
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#include "PositionArg.hxx"
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#include "Request.hxx"
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#include "Instance.hxx"
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#include "db/Interface.hxx"
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#include "db/Selection.hxx"
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#include "db/DatabasePlaylist.hxx"
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#include "db/DatabaseSong.hxx"
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#include "PlaylistSave.hxx"
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#include "PlaylistFile.hxx"
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#include "PlaylistError.hxx"
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#include "db/PlaylistVector.hxx"
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#include "SongLoader.hxx"
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#include "song/DetachedSong.hxx"
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#include "BulkEdit.hxx"
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#include "playlist/PlaylistQueue.hxx"
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#include "playlist/Print.hxx"
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#include "TimePrint.hxx"
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#include "client/Client.hxx"
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#include "client/Response.hxx"
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#include "Mapper.hxx"
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#include "fs/AllocatedPath.hxx"
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#include "time/ChronoUtil.hxx"
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#include "util/UriExtract.hxx"
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#include "LocateUri.hxx"
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#include <fmt/format.h>
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bool
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playlist_commands_available() noexcept
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{
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return !map_spl_path().IsNull();
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}
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static void
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print_spl_list(Response &r, const PlaylistVector &list)
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{
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for (const auto &i : list) {
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r.Fmt(FMT_STRING("playlist: {}\n"), i.name);
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if (!IsNegative(i.mtime))
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time_print(r, "Last-Modified", i.mtime);
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}
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}
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CommandResult
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handle_save(Client &client, Request args, [[maybe_unused]] Response &r)
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{
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PlaylistSaveMode mode = PlaylistSaveMode::CREATE;
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const char *mode_arg = args.GetOptional(1);
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if (mode_arg != nullptr) {
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if (StringIsEqual(mode_arg, "create"))
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mode = PlaylistSaveMode::CREATE;
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else if (StringIsEqual(mode_arg, "append"))
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mode = PlaylistSaveMode::APPEND;
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else if (StringIsEqual(mode_arg, "replace"))
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mode = PlaylistSaveMode::REPLACE;
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else
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throw std::invalid_argument("Unrecognized save mode, expected one of 'create', 'append', 'replace'");
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}
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spl_save_playlist(args.front(), mode, client.GetPlaylist());
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return CommandResult::OK;
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}
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CommandResult
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handle_load(Client &client, Request args, [[maybe_unused]] Response &r)
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{
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const auto uri = LocateUri(UriPluginKind::PLAYLIST, args.front(),
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&client
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#ifdef ENABLE_DATABASE
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, nullptr
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#endif
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);
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RangeArg range = args.ParseOptional(1, RangeArg::All());
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auto &partition = client.GetPartition();
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const ScopeBulkEdit bulk_edit(partition);
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auto &playlist = client.GetPlaylist();
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const unsigned old_size = playlist.GetLength();
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const unsigned position = args.size() > 2
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? ParseInsertPosition(args[2], partition.playlist)
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: old_size;
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const SongLoader loader(client);
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playlist_open_into_queue(uri,
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range.start, range.end,
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playlist,
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client.GetPlayerControl(), loader);
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/* invoke the RemoteTagScanner on all newly added songs */
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auto &instance = client.GetInstance();
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const unsigned new_size = playlist.GetLength();
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for (unsigned i = old_size; i < new_size; ++i)
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instance.LookupRemoteTag(playlist.queue.Get(i).GetRealURI());
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if (position < old_size) {
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const RangeArg move_range{old_size, new_size};
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try {
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partition.MoveRange(move_range, position);
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} catch (...) {
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/* ignore - shall we handle it? */
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}
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}
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return CommandResult::OK;
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}
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CommandResult
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handle_listplaylist(Client &client, Request args, Response &r)
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{
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const auto name = LocateUri(UriPluginKind::PLAYLIST, args.front(),
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&client
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#ifdef ENABLE_DATABASE
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, nullptr
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#endif
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);
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if (playlist_file_print(r, client.GetPartition(), SongLoader(client),
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name, false))
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return CommandResult::OK;
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throw PlaylistError::NoSuchList();
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}
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CommandResult
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handle_listplaylistinfo(Client &client, Request args, Response &r)
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{
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const auto name = LocateUri(UriPluginKind::PLAYLIST, args.front(),
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&client
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#ifdef ENABLE_DATABASE
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, nullptr
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#endif
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);
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if (playlist_file_print(r, client.GetPartition(), SongLoader(client),
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name, true))
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return CommandResult::OK;
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throw PlaylistError::NoSuchList();
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}
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CommandResult
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handle_rm([[maybe_unused]] Client &client, Request args, [[maybe_unused]] Response &r)
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{
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const char *const name = args.front();
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spl_delete(name);
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return CommandResult::OK;
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}
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CommandResult
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handle_rename([[maybe_unused]] Client &client, Request args, [[maybe_unused]] Response &r)
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{
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const char *const old_name = args[0];
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const char *const new_name = args[1];
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spl_rename(old_name, new_name);
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return CommandResult::OK;
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}
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CommandResult
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handle_playlistdelete([[maybe_unused]] Client &client,
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Request args, [[maybe_unused]] Response &r)
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{
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const char *const name = args[0];
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const auto range = args.ParseRange(1);
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PlaylistFileEditor editor(name, PlaylistFileEditor::LoadMode::YES);
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editor.RemoveRange(range);
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editor.Save();
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return CommandResult::OK;
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}
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CommandResult
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handle_playlistmove([[maybe_unused]] Client &client,
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Request args, [[maybe_unused]] Response &r)
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{
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const char *const name = args.front();
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RangeArg from = args.ParseRange(1);
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if (from.IsOpenEnded()) {
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r.Error(ACK_ERROR_ARG, "Open-ended range not supported");
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return CommandResult::ERROR;
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}
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unsigned to = args.ParseUnsigned(2);
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if (from.IsEmpty() || from.start == to)
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/* this doesn't check whether the playlist exists, but
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what the hell.. */
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return CommandResult::OK;
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PlaylistFileEditor editor(name, PlaylistFileEditor::LoadMode::YES);
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editor.MoveIndex(from, to);
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editor.Save();
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return CommandResult::OK;
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}
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CommandResult
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handle_playlistclear([[maybe_unused]] Client &client,
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Request args, [[maybe_unused]] Response &r)
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{
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const char *const name = args.front();
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spl_clear(name);
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return CommandResult::OK;
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}
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static CommandResult
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handle_playlistadd_position(Client &client, const char *playlist_name,
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const char *uri, unsigned position,
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Response &r)
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{
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PlaylistFileEditor editor{
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playlist_name,
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PlaylistFileEditor::LoadMode::TRY,
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};
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if (position > editor.size()) {
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r.Error(ACK_ERROR_ARG, "Bad position");
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return CommandResult::ERROR;
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}
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if (uri_has_scheme(uri)) {
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editor.Insert(position, uri);
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} else {
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#ifdef ENABLE_DATABASE
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const DatabaseSelection selection(uri, true, nullptr);
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if (SearchInsertIntoPlaylist(client.GetDatabaseOrThrow(),
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client.GetStorage(),
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selection,
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editor, position) == 0)
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/* no song was found, don't need to save */
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return CommandResult::OK;
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#else
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(void)client;
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r.Error(ACK_ERROR_NO_EXIST, "No database");
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return CommandResult::ERROR;
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#endif
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}
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editor.Save();
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return CommandResult::OK;
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}
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CommandResult
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handle_playlistadd(Client &client, Request args, [[maybe_unused]] Response &r)
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{
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const char *const playlist = args[0];
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const char *const uri = args[1];
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if (args.size() >= 3)
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return handle_playlistadd_position(client, playlist, uri,
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args.ParseUnsigned(2), r);
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if (uri_has_scheme(uri)) {
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const SongLoader loader(client);
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spl_append_uri(playlist, loader, uri);
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} else {
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#ifdef ENABLE_DATABASE
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const Database &db = client.GetDatabaseOrThrow();
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const DatabaseSelection selection(uri, true, nullptr);
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search_add_to_playlist(db, client.GetStorage(),
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playlist, selection);
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#else
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r.Error(ACK_ERROR_NO_EXIST, "directory or file not found");
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return CommandResult::ERROR;
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#endif
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}
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return CommandResult::OK;
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}
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CommandResult
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handle_listplaylists([[maybe_unused]] Client &client, [[maybe_unused]] Request args,
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Response &r)
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{
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print_spl_list(r, ListPlaylistFiles());
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return CommandResult::OK;
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}
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