<?php

/**
 * @file pages/manager/ManagerHandler.inc.php
 *
 * Copyright (c) 2013-2015 Simon Fraser University Library
 * Copyright (c) 2003-2015 John Willinsky
 * Distributed under the GNU GPL v2. For full terms see the file docs/COPYING.
 *
 * @class ManagerHandler
 * @ingroup pages_manager
 *
 * @brief Handle requests for journal management functions. 
 */

import('classes.handler.Handler');
import('pages.manager.ManagerHandler');

class ManagerHandler extends Handler {
	/**
	 * Constructor
	 **/
	function ManagerHandler() {
		parent::Handler();
		
		$this->addCheck(new HandlerValidatorJournal($this));
		$this->addCheck(new HandlerValidatorRoles($this, true, null, null, array(ROLE_ID_SITE_ADMIN, ROLE_ID_JOURNAL_MANAGER)));
	}
	/**
	 * Display journal management index page.
	 */
	function index() {
		$this->validate();
		$this->setupTemplate();
		$journal =& Request::getJournal();
		$templateMgr =& TemplateManager::getManager();

		// Display a warning message if there is a new version of OJS available
		$newVersionAvailable = false;
		if (Config::getVar('general', 'show_upgrade_warning')) {
			import('lib.pkp.classes.site.VersionCheck');
			if($latestVersion = VersionCheck::checkIfNewVersionExists()) {
				$newVersionAvailable = true;
				$templateMgr->assign('latestVersion', $latestVersion);
				$currentVersion =& VersionCheck::getCurrentDBVersion();
				$templateMgr->assign('currentVersion', $currentVersion->getVersionString());
				
				// Get contact information for site administrator
				$roleDao =& DAORegistry::getDAO('RoleDAO');
				$siteAdmins =& $roleDao->getUsersByRoleId(ROLE_ID_SITE_ADMIN);
				$templateMgr->assign_by_ref('siteAdmin', $siteAdmins->next());
			}
		}


		$templateMgr->assign('newVersionAvailable', $newVersionAvailable);
		$templateMgr->assign_by_ref('roleSettings', $this->retrieveRoleAssignmentPreferences($journal->getId()));
		$templateMgr->assign('publishingMode', $journal->getSetting('publishingMode'));
		$templateMgr->assign('announcementsEnabled', $journal->getSetting('enableAnnouncements'));
		$session =& Request::getSession();
		$session->unsetSessionVar('enrolmentReferrer');

		$templateMgr->assign('helpTopicId','journal.index');
		$templateMgr->display('manager/index.tpl');
	}

	/**
	 * Send an email to a user or group of users.
	 */
	function email($args) {
		$this->validate();

		$this->setupTemplate(true);
		$templateMgr =& TemplateManager::getManager();
		$templateMgr->assign('helpTopicId', 'journal.users.emailUsers');

		$userDao =& DAORegistry::getDAO('UserDAO');

		$site =& Request::getSite();
		$journal =& Request::getJournal();
		$user =& Request::getUser();

		import('classes.mail.MailTemplate');
		$email = new MailTemplate(Request::getUserVar('template'), Request::getUserVar('locale'));

		if (Request::getUserVar('send') && !$email->hasErrors()) {
			$email->send();
			Request::redirect(null, Request::getRequestedPage());
		} else {
			$email->assignParams(); // FIXME Forces default parameters to be assigned (should do this automatically in MailTemplate?)
			if (!Request::getUserVar('continued')) {
				if (($groupId = Request::getUserVar('toGroup')) != '') {
					// Special case for emailing entire groups:
					// Check for a group ID and add recipients.
					$groupDao =& DAORegistry::getDAO('GroupDAO');
					$group =& $groupDao->getById($groupId);
					if ($group && $group->getAssocId() == $journal->getId() && $group->getAssocType() == ASSOC_TYPE_JOURNAL) {
						$groupMembershipDao =& DAORegistry::getDAO('GroupMembershipDAO');
						$memberships =& $groupMembershipDao->getMemberships($group->getId());
						$memberships =& $memberships->toArray();
						foreach ($memberships as $membership) {
							$user =& $membership->getUser();
							$email->addRecipient($user->getEmail(), $user->getFullName());
						}
					}
				}
				if (count($email->getRecipients())==0) $email->addRecipient($user->getEmail(), $user->getFullName());
			}
			$email->displayEditForm(Request::url(null, null, 'email'), array(), 'manager/people/email.tpl');
		}
	}

	/**
	 * Setup common template variables.
	 * @param $subclass boolean set to true if caller is below this handler in the hierarchy
	 */
	function setupTemplate($subclass = false) {
		parent::setupTemplate();
		AppLocale::requireComponents(LOCALE_COMPONENT_PKP_MANAGER, LOCALE_COMPONENT_OJS_MANAGER, LOCALE_COMPONENT_PKP_ADMIN);
		$templateMgr =& TemplateManager::getManager();
		$templateMgr->assign('pageHierarchy',
			$subclass ? array(array(Request::url(null, 'user'), 'navigation.user'), array(Request::url(null, 'manager'), 'manager.journalManagement'))
				: array(array(Request::url(null, 'user'), 'navigation.user'))
		);
	}
	 
	/**
	 * Retrieves a list of special Journal Management settings related to the journal's inclusion of individual copyeditors, layout editors, and proofreaders.
	 * @param $journalId int Journal ID of the journal from which the settings will be obtained
	 * @return array
	 */	
	function &retrieveRoleAssignmentPreferences($journalId) {
		$journalSettingsDao =& DAORegistry::getDAO('JournalSettingsDAO');
		$journalSettings = $journalSettingsDao->getJournalSettings($journalId);
 		$returner = array('useLayoutEditors'=>0,'useCopyeditors'=>0,'useProofreaders'=>0);

		foreach($returner as $specific=>$value) {
			if(isset($journalSettings[$specific])) {
				if($journalSettings[$specific]) {
					$returner[$specific]=1;
				}
			}
		}
		return $returner;
	}
}

?>