<?php

defined('_JEXEC') or die('Access denied');

jimport('joomla.application.component.view');
jimport('joomla.environment.request');
jimport('joomla.log.log');

class OpenAireViewAlerts extends JViewLegacy {
	const MAX_TOPICS = 10;
	const ALERTS = 'alerts';
	const PIWIK = 'piwik';
	const LOG = 'openaire';
	
	function display($template = NULL) {
		$this -> itemId = JRequest :: getUInt('Itemid', 0);
		$templateId = JRequest :: getString('templateId');
		$notificationService = JRequest :: getString('notificationService');
		$queryId = JRequest :: getString('queryId');
		$resultId = JRequest :: getString('resultId');
		$alertMode = JRequest :: getString('alertMode');
		$batchPeriod = JRequest :: getString('batchPeriod');
		$subscriber = JRequest :: getString('subscriber');
		$user = JFactory :: getUser();
		$alerts  = $this -> getModel(self :: ALERTS);
		$piwik = $this -> getModel(self :: PIWIK);
		$application = JFactory :: getApplication();
		if ($user -> guest) {
			$application -> redirect(JRoute :: _('index.php?option=com_users&view=login&Itemid=' . $this -> itemId . '&return=' . base64_encode(JRoute :: _('index.php?option=com_openaire&view=alerts&Itemid=' . $this -> itemId, FALSE)), FALSE));
			return TRUE;
		}
		switch (JRequest :: getCmd('action')) {
		case 'add':
			if (($templateId != NULL) && ($notificationService != NULL) && ($queryId != NULL) && ($resultId != NULL) && ($alertMode != NULL) && ($batchPeriod != NULL)) {
				$piwik -> track('addAlert', 'template=' . urlencode($templateId) . '&notificationService=' . urlencode($notificationService) . '&query=' . urlencode($queryId) . '&result=' . urlencode($resultId) . '&mode=' . urlencode($alertMode) . '&batch=' . urlencode($batchPeriod));
				$alerts  -> addSubscription($templateId, $notificationService, $queryId, $resultId, $alertMode, $batchPeriod, $user);
			}
			$application -> redirect(JRoute :: _('index.php?option=com_openaire&view=alerts&Itemid=' . $this -> itemId, FALSE));
			return TRUE;
		case 'remove':
			if (($templateId != NULL) && ($notificationService != NULL) && ($queryId != NULL) && ($resultId != NULL) && ($alertMode != NULL) && ($subscriber != NULL)) {
				$piwik -> track('removeAlert', 'template=' . urlencode($templateId) . '&notificationService=' . urlencode($notificationService) . '&query=' . urlencode($queryId) . '&result=' . urlencode($resultId) . '&mode=' . urlencode($alertMode) . '&subscriber=' . urlencode($subscriber));
				$alerts  -> removeSubscription($templateId, $notificationService, $queryId, $resultId, $alertMode, $subscriber, $user);
			}
			$application -> redirect(JRoute :: _('index.php?option=com_openaire&view=alerts&Itemid=' . $this -> itemId, FALSE));
			return TRUE;
		default:
			JViewLegacy :: loadHelper('PiwikHelper');
			PiwikHelper :: logPageView('viewAlerts', '');
			$this -> subscriptions = $alerts  -> getSubscriptions($user);
			$this -> alertModes = $alerts  -> getAlertModes($user);
		}
		if (count($errors = $this -> get('Errors')) > 0) {
			JLog :: add('Error viewing alerts: ' . implode("\n", $errors), JLog :: ERROR, self :: LOG);
			return FALSE;
		}
		parent :: display($template);
	}
}