<?php
  
  /**
   * ownCloud - Activity App
   *
   * @author Joas Schilling
   * @copyright 2014 Joas Schilling nickvergessen@owncloud.com
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
   * License as published by the Free Software Foundation; either
   * version 3 of the License, or any later version.
   *
   * This library 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 AFFERO GENERAL PUBLIC LICENSE for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
   *
   */
  
  namespace OCA\Activity;
  
  use \OCP\Util;
  use \OCP\Activity\IManager;
  
  class DataHelper
  {
  	/** @var \OCP\Activity\IManager */
  	protected $activityManager;
  
  	/** @var \OCA\Activity\ParameterHelper */
  	protected $parameterHelper;
  
  	/** @var \OC_L10N */
  	protected $l;
  
  	public function __construct(IManager $activityManager, ParameterHelper $parameterHelper, \OC_L10N $l) {
  		$this->activityManager = $activityManager;
  		$this->parameterHelper = $parameterHelper;
  		$this->l = $l;
  	}
  
  	/**
  	 * @brief Translate an event string with the translations from the app where it was send from
  	 * @param string $app The app where this event comes from
  	 * @param string $text The text including placeholders
  	 * @param array $params The parameter for the placeholder
  	 * @param bool $stripPath Shall we strip the path from file names?
  	 * @param bool $highlightParams Shall we highlight the parameters in the string?
  	 *             They will be highlighted with `<strong>`, all data will be passed through
  	 *             \OCP\Util::sanitizeHTML() before, so no XSS is possible.
  	 * @return string translated
  	 */
  	public function translation($app, $text, $params, $stripPath = false, $highlightParams = false) {
  		if (!$text) {
  			return '';
  		}
  
  		if ($app === 'files') {
  			$preparedParams = $this->parameterHelper->prepareParameters(
  				$params, $this->parameterHelper->getSpecialParameterList($app, $text),
  				$stripPath, $highlightParams
  			);
  			switch ($text) {
  				case 'created_self':
  					return $this->l->t('You created %1$s', $preparedParams);
  				case 'created_by':
  					return $this->l->t('%2$s created %1$s', $preparedParams);
  				case 'changed_self':
  					return $this->l->t('You changed %1$s', $preparedParams);
  				case 'changed_by':
  					return $this->l->t('%2$s changed %1$s', $preparedParams);
  				case 'deleted_self':
  					return $this->l->t('You deleted %1$s', $preparedParams);
  				case 'deleted_by':
  					return $this->l->t('%2$s deleted %1$s', $preparedParams);
  				case 'shared_user_self':
  					return $this->l->t('You shared %1$s with %2$s', $preparedParams);
  				case 'shared_group_self':
  					return $this->l->t('You shared %1$s with group %2$s', $preparedParams);
  				case 'shared_with_by':
  					return $this->l->t('%2$s shared %1$s with you', $preparedParams);
  				case 'shared_link_self':
  					return $this->l->t('You shared %1$s via link', $preparedParams);
  			}
  		}
  
  		// Allow other apps to correctly translate their activities
  		$translation = $this->activityManager->translate(
  			$app, $text, $params, $stripPath, $highlightParams, $this->l->getLanguageCode());
  
  		if ($translation !== false) {
  			return $translation;
  		}
  
  		$l = Util::getL10N($app);
  		return $l->t($text, $params);
  	}
  
  	/**
  	 * Format strings for display
  	 *
  	 * @param array $activity
  	 * @param string $message 'subject' or 'message'
  	 * @return array Modified $activity
  	 */
  	public function formatStrings($activity, $message) {
  		$activity[$message . 'params'] = $activity[$message . 'params_array'];
  		unset($activity[$message . 'params_array']);
  
  		$activity[$message . 'formatted'] = array(
  			'trimmed'	=> $this->translation($activity['app'], $activity[$message], $activity[$message . 'params'], true),
  			'full'		=> $this->translation($activity['app'], $activity[$message], $activity[$message . 'params']),
  			'markup'	=> array(
  				'trimmed'	=> $this->translation($activity['app'], $activity[$message], $activity[$message . 'params'], true, true),
  				'full'		=> $this->translation($activity['app'], $activity[$message], $activity[$message . 'params'], false, true),
  			),
  		);
  
  		return $activity;
  	}
  
  	/**
  	 * Get the icon for a given activity type
  	 *
  	 * @param string $type
  	 * @return string CSS class which adds the icon
  	 */
  	public function getTypeIcon($type)
  	{
  		switch ($type)
  		{
  			case Data::TYPE_SHARE_CHANGED:
  				return 'icon-change';
  			case Data::TYPE_SHARE_CREATED:
  				return 'icon-add-color';
  			case Data::TYPE_SHARE_DELETED:
  				return 'icon-delete-color';
  			case Data::TYPE_SHARED:
  				return 'icon-share';
  		}
  
  		// Allow other apps to add a icon for their notifications
  		return $this->activityManager->getTypeIcon($type);
  	}
  }