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<?php
/**
 * Copyright (c) 2013 Thomas Tanghus (thomas@tanghus.net)
 * This file is licensed under the Affero General Public License version 3 or
 * later.
 * See the COPYING-README file.
 */

namespace OC\Core\Tags;

class Controller {
	protected static function getTagger($type) {
		\OC_JSON::checkLoggedIn();
		\OC_JSON::callCheck();

		try {
			$tagger = \OC::$server->getTagManager()->load($type);
			return $tagger;
		} catch(\Exception $e) {
			\OCP\Util::writeLog('core', __METHOD__ . ' Exception: ' . $e->getMessage(), \OCP\Util::ERROR);
			$l = new \OC_L10n('core');
			\OC_JSON::error(array('message'=> $l->t('Error loading tags')));
			exit;
		}
	}

	public static function getTags($args) {
		$tagger = self::getTagger($args['type']);
		\OC_JSON::success(array('tags'=> $tagger->getTags()));
	}

	public static function getFavorites($args) {
		$tagger = self::getTagger($args['type']);
		\OC_JSON::success(array('ids'=> $tagger->getFavorites()));
	}

	public static function getIdsForTag($args) {
		$tagger = self::getTagger($args['type']);
		\OC_JSON::success(array('ids'=> $tagger->getIdsForTag($_GET['tag'])));
	}

	public static function addTag($args) {
		$tagger = self::getTagger($args['type']);

		$id = $tagger->add(strip_tags($_POST['tag']));
		if($id === false) {
			$l = new \OC_L10n('core');
			\OC_JSON::error(array('message'=> $l->t('Tag already exists')));
		} else {
			\OC_JSON::success(array('id'=> $id));
		}
	}

	public static function deleteTags($args) {
		$tags = $_POST['tags'];
		if(!is_array($tags)) {
			$tags = array($tags);
		}

		$tagger = self::getTagger($args['type']);

		if(!$tagger->delete($tags)) {
			$l = new \OC_L10n('core');
			\OC_JSON::error(array('message'=> $l->t('Error deleting tag(s)')));
		} else {
			\OC_JSON::success();
		}
	}

	public static function tagAs($args) {
		$tagger = self::getTagger($args['type']);

		if(!$tagger->tagAs($args['id'], $_POST['tag'])) {
			$l = new \OC_L10n('core');
			\OC_JSON::error(array('message'=> $l->t('Error tagging')));
		} else {
			\OC_JSON::success();
		}
	}

	public static function unTag($args) {
		$tagger = self::getTagger($args['type']);

		if(!$tagger->unTag($args['id'], $_POST['tag'])) {
			$l = new \OC_L10n('core');
			\OC_JSON::error(array('message'=> $l->t('Error untagging')));
		} else {
			\OC_JSON::success();
		}
	}

	public static function favorite($args) {
		$tagger = self::getTagger($args['type']);

		if(!$tagger->addToFavorites($args['id'])) {
			$l = new \OC_L10n('core');
			\OC_JSON::error(array('message'=> $l->t('Error favoriting')));
		} else {
			\OC_JSON::success();
		}
	}

	public static function unFavorite($args) {
		$tagger = self::getTagger($args['type']);

		if(!$tagger->removeFromFavorites($args['id'])) {
			$l = new \OC_L10n('core');
			\OC_JSON::error(array('message'=> $l->t('Error unfavoriting')));
		} else {
			\OC_JSON::success();
		}
	}

}