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/*
 * Copyright (C) 2003-2011 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 "dbUtils.h"
#include "locate.h"
#include "database.h"
#include "db_visitor.h"
#include "playlist.h"
#include "stored_playlist.h"

#include <glib.h>

static bool
add_to_queue_song(struct song *song, void *ctx, GError **error_r)
{
	struct player_control *pc = ctx;

	enum playlist_result result =
		playlist_append_song(&g_playlist, pc, song, NULL);
	if (result != PLAYLIST_RESULT_SUCCESS) {
		g_set_error(error_r, playlist_quark(), result,
			    "Playlist error");
		return false;
	}

	return true;
}

static const struct db_visitor add_to_queue_visitor = {
	.song = add_to_queue_song,
};

bool
addAllIn(struct player_control *pc, const char *uri, GError **error_r)
{
	return db_walk(uri, &add_to_queue_visitor, pc, error_r);
}

struct add_data {
	const char *path;
};

static bool
add_to_spl_song(struct song *song, void *ctx, GError **error_r)
{
	struct add_data *data = ctx;

	if (!spl_append_song(data->path, song, error_r))
		return false;

	return true;
}

static const struct db_visitor add_to_spl_visitor = {
	.song = add_to_spl_song,
};

bool
addAllInToStoredPlaylist(const char *uri_utf8, const char *path_utf8,
			 GError **error_r)
{
	struct add_data data = {
		.path = path_utf8,
	};

	return db_walk(uri_utf8, &add_to_spl_visitor, &data, error_r);
}

struct find_add_data {
	struct player_control *pc;
	const struct locate_item_list *criteria;
};

static bool
find_add_song(struct song *song, void *ctx, GError **error_r)
{
	struct find_add_data *data = ctx;

	if (!locate_song_match(song, data->criteria))
		return true;

	enum playlist_result result =
		playlist_append_song(&g_playlist, data->pc,
				     song, NULL);
	if (result != PLAYLIST_RESULT_SUCCESS) {
		g_set_error(error_r, playlist_quark(), result,
			    "Playlist error");
		return false;
	}

	return true;
}

static const struct db_visitor find_add_visitor = {
	.song = find_add_song,
};

bool
findAddIn(struct player_control *pc, const char *name,
	  const struct locate_item_list *criteria, GError **error_r)
{
	struct find_add_data data;
	data.pc = pc;
	data.criteria = criteria;

	return db_walk(name, &find_add_visitor, &data, error_r);
}