class.ilConsultationHoursGUI.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2006 ILIAS open source, University of Cologne            |
        |                                                                             |
        | 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
        +-----------------------------------------------------------------------------+
*/

include_once './Services/Calendar/classes/class.ilCalendarRecurrence.php';
include_once './Services/Booking/classes/class.ilBookingEntry.php';
include_once './Services/Calendar/classes/ConsultationHours/class.ilConsultationHourAppointments.php';

class ilConsultationHoursGUI
{
        const MODE_CREATE = 1;
        const MODE_UPDATE = 2;
        const MODE_MULTI = 3;
        
        const MAX_APPOINTMENTS_PER_SEQUENCE = 1000;
        
        protected $user_id;
        protected $ctrl;

        protected $booking = null;
        
        public function __construct()
        {
                global $lng, $ilCtrl, $tpl, $ilUser;

                $user_id = (int)$_GET['user_id'];
                if($user_id)
                {
                        if(in_array($user_id, array_keys(ilConsultationHourAppointments::getManagedUsers())))
                        {
                                $this->user_id = $user_id;
                        }
                        else
                        {
                                $user_id = false;
                        }
                }
                if(!$user_id)
                {
                        $this->user_id = $ilUser->getId();
                }
                
                $this->ctrl = $ilCtrl;
                $this->lng = $lng;
                $this->tpl = $tpl;
        }
        
        public function executeCommand()
        {
                global $ilUser, $ilCtrl, $tpl, $ilHelp, $ilTabs;
                
                $ilHelp->setScreenIdComponent("cal");
                
                switch($this->ctrl->getNextClass())
                {
                        case "ilpublicuserprofilegui":                          
                                include_once('./Services/User/classes/class.ilPublicUserProfileGUI.php');
                                #22168 don't send the current user if no GET user_id
                                //$profile = new ilPublicUserProfileGUI($this->user_id);
                                $profile = new ilPublicUserProfileGUI();
                                $profile->setBackUrl($this->getProfileBackUrl());
                                $ret = $ilCtrl->forwardCommand($profile);
                                $tpl->setContent($ret);
                            break;
                        
                        case 'ilrepositorysearchgui':
                                
                                include_once('./Services/Search/classes/class.ilRepositorySearchGUI.php');
                                $rep_search = new ilRepositorySearchGUI();
                                
                                if(isset($_REQUEST['assignM']))
                                {
                                        $rep_search->setCallback(
                                                $this,
                                                'assignUsersToAppointments',
                                                array()
                                        );
                                        $ilCtrl->setParameter($this,'assignM',1);
                                        $ilCtrl->setReturn($this,'appointmentList');
                                        $ilTabs->activateSubTab('cal_ch_app_list');
                                }
                                elseif(isset($_REQUEST['grp_id']))
                                {
                                        $rep_search->setCallback(
                                                $this,
                                                'assignUsersToGroup',
                                                array()
                                        );
                                        $ilCtrl->saveParameter($this,'grp_id');
                                        $ilCtrl->setReturn($this,'groupList');
                                        $ilTabs->activateSubTab('cal_ch_app_grp');
                                }
                                elseif(isset($_REQUEST['apps']))
                                {
                                        $rep_search->setCallback(
                                                $this,
                                                'assignUsersToAppointment',
                                                array()
                                        );
                                        $ilCtrl->saveParameter($this,'apps');
                                        $ilCtrl->setReturn($this,'appointmentList');
                                        $ilTabs->activateSubTab('cal_ch_app_list');
                                }
                                $ilCtrl->forwardCommand($rep_search);
                                break;
                        
                        default:                                
                                $tpl->setTitle($this->lng->txt("cal_ch_form_header")); // #12220
                
                                $this->setTabs();
                                if($ilUser->getId() != $this->user_id)
                                {
                                        $ilCtrl->setParameter($this, 'user_id', $this->user_id);
                                }               
                                
                                $cmd = $this->ctrl->getCmd('appointmentList');
                                $this->$cmd();
                }
        }
        
        public function getUserId()
        {
                return $this->user_id;
        }
        
        protected function searchUsersForAppointments()
        {
                global $ilCtrl, $ilTabs;
                
                $_SESSION['ch_apps'] = $_REQUEST['apps'];
                
                if(!count($_SESSION['ch_apps']))
                {
                        ilUtil::sendFailure($this->lng->txt('select_one'),true);
                        $GLOBALS['ilCtrl']->redirect($this,'appointmentList');
                }
                $_REQUEST['assignM'] = 1;
                $ilCtrl->setCmdClass('ilrepositorysearchgui');
                $ilCtrl->setcmd('');
                $this->executeCommand();
        }
        
        protected function sendInfoAboutUnassignedUsers($unassigned)
        {
                if(!$unassigned)
                {
                        return true;
                }
                $users = array();
                foreach($unassigned as $user_id)
                {
                        include_once './Services/User/classes/class.ilObjUser.php';
                        $users[] = ilObjUser::_lookupFullname($user_id);
                }
                ilUtil::sendInfo($this->lng->txt('cal_ch_user_assignment_failed_info').'<br />'.implode('<br />', $users),true);
                return true;
        }
        
        public function assignUsersToAppointments(array $users)
        {
                global $ilCtrl;
                
                $unassigned_users = array();
                foreach($_SESSION['ch_apps'] as $app)
                {
                        $unassigned_users = array_unique(array_merge($unassigned_users,$this->assignUsersToAppointment($users,$app,false)));
                }
                
                $this->sendInfoAboutUnassignedUsers($unassigned_users);
                $ilCtrl->redirect($this,'appointmentList');
        }


        public function assignUsersToAppointment(array $users, $a_app = 0, $a_redirect = true)
        {
                global $ilCtrl;
                
                if($a_app)
                {
                        $app = $a_app;
                }
                else
                {
                        $app = $_REQUEST['apps'];
                }
                
                include_once './Services/Booking/classes/class.ilBookingEntry.php';
                $booking = ilBookingEntry::getInstanceByCalendarEntryId($app);
                
                $assigned_users = array();
                foreach($users as $user)
                {
                        if($booking->getCurrentNumberOfBookings($app) >= $booking->getNumberOfBookings())
                        {
                                break;
                        }
                        if(!ilBookingEntry::lookupBookingsOfUser((array) $app, $user))
                        {
                                include_once './Services/Calendar/classes/ConsultationHours/class.ilConsultationHourUtils.php';
                                ilConsultationHourUtils::bookAppointment($user,$app);
                                $assigned_users[] = $user;
                        }
                }
                
                $unassigned_users = array_diff($users, $assigned_users);
                
                if($a_redirect)
                {
                        $this->sendInfoAboutUnassignedUsers($unassigned_users);
                        $ilCtrl->redirect($this,'appointmentList');
                }
                else
                {
                        return $unassigned_users;
                }
                
        }

        public function assignUsersToGroup(array $usr_ids)
        {
                global $ilCtrl;

                $group_id = (int) $_REQUEST['grp_id'];
                
                $tomorrow = new ilDateTime(time(),IL_CAL_UNIX);
                $tomorrow->increment(IL_CAL_DAY,1);
                
                // Get all future consultation hours
                include_once './Services/Calendar/classes/ConsultationHours/class.ilConsultationHourAppointments.php';
                include_once './Services/Booking/classes/class.ilBookingEntry.php';
                $apps = ilConsultationHourAppointments::getAppointmentIdsByGroup(
                                $this->user_id,
                                $group_id,
                                $tomorrow
                );
                $users = $usr_ids;
                $assigned_users = array();
                foreach($apps as $app)
                {
                        $booking = ilBookingEntry::getInstanceByCalendarEntryId($app);
                        foreach($users as $user)
                        {
                                if($booking->getCurrentNumberOfBookings($app) >= $booking->getNumberOfBookings())
                                {
                                        break;
                                }
                                if(!ilBookingEntry::lookupBookingsOfUser($apps, $user))
                                {
                                        include_once './Services/Calendar/classes/ConsultationHours/class.ilConsultationHourUtils.php';
                                        ilConsultationHourUtils::bookAppointment($user,$app);
                                        $assigned_users[] = $user;
                                }
                        }
                }
                
                $this->sendInfoAboutUnassignedUsers(array_diff($users, $assigned_users));
                $ilCtrl->redirect($this,'bookingList');
        }


        protected function groupList()
        {
                global $ilToolbar, $ilTabs, $tpl;

                $ilToolbar->setFormAction($this->ctrl->getFormAction($this));
                $ilToolbar->addButton($this->lng->txt('cal_ch_add_grp'),$this->ctrl->getLinkTarget($this,'addGroup'));
                
                $this->setSubTabs();
                $ilTabs->activateSubTab('cal_ch_app_grp');
                
                include_once './Services/Calendar/classes/ConsultationHours/class.ilConsultationHourGroupTableGUI.php';
                include_once './Services/Calendar/classes/ConsultationHours/class.ilConsultationHourGroups.php';
                $gtbl = new ilConsultationHourGroupTableGUI($this,'groupList',$this->getUserId());
                $gtbl->parse(ilConsultationHourGroups::getGroupsOfUser($this->getUserId()));
                
                $tpl->setContent($gtbl->getHTML());
        }
        
        protected function addGroup(ilPropertyFormGUI $form = null)
        {
                global $ilTabs, $tpl;

                $this->setSubTabs();
                $ilTabs->activateSubTab('cal_ch_app_grp');
                
                if($form == null)
                {
                        $form = $this->initGroupForm();
                }
                $tpl->setContent($form->getHTML());
        }
        
        protected function saveGroup()
        {
                $form = $this->initGroupForm();
                if($form->checkInput())
                {
                        include_once './Services/Calendar/classes/ConsultationHours/class.ilConsultationHourGroup.php';
                        $group = new ilConsultationHourGroup();
                        $group->setTitle($form->getInput('title'));
                        $group->setMaxAssignments($form->getInput('multiple'));
                        $group->setUserId($this->getUserId());
                        $group->save();
                        
                        ilUtil::sendSuccess($GLOBALS['lng']->txt('settings_saved'),true);
                        $GLOBALS['ilCtrl']->redirect($this,'groupList');
                }
                
                ilUtil::sendFailure($GLOBALS['lng']->txt('err_check_input'),true);
                $this->addGroup($form);
        }
        
        protected function editGroup(ilPropertyFormGUI $form = null)
        {
                global $ilCtrl, $tpl, $ilTabs;
                
                $ilCtrl->setParameter($this,'grp_id',(int) $_REQUEST['grp_id']);
                $this->setSubTabs();
                $ilTabs->activateSubTab('cal_ch_app_grp');
                
                if($form == null)
                {
                        $form = $this->initGroupForm((int) $_REQUEST['grp_id']);
                }
                $tpl->setContent($form->getHTML());
        }
        
        protected function updateGroup()
        {
                global $ilCtrl, $tpl, $ilTabs;
                
                $ilCtrl->setParameter($this,'grp_id',(int) $_REQUEST['grp_id']);
                
                $form = $this->initGroupForm((int) $_REQUEST['grp_id']);
                if($form->checkInput())
                {
                        include_once './Services/Calendar/classes/ConsultationHours/class.ilConsultationHourGroup.php';
                        $group = new ilConsultationHourGroup((int) $_REQUEST['grp_id']);
                        $group->setTitle($form->getInput('title'));
                        $group->setMaxAssignments($form->getInput('multiple'));
                        $group->setUserId($this->getUserId());
                        $group->update();
                        
                        ilUtil::sendSuccess($GLOBALS['lng']->txt('settings_saved'),true);
                        $GLOBALS['ilCtrl']->redirect($this,'groupList');
                }
                
                ilUtil::sendFailure($GLOBALS['lng']->txt('err_check_input'),true);
                $this->editGroup($form);
        }
        
        protected function confirmDeleteGroup()
        {
                global $ilCtrl, $ilTabs, $tpl;
                
                $ilCtrl->setParameter($this,'grp_id',(int) $_REQUEST['grp_id']);
                $groups = array((int) $_REQUEST['grp_id']);
                
                $this->setSubTabs();
                $ilTabs->activateSubTab('cal_ch_app_grp');
                

                include_once './Services/Utilities/classes/class.ilConfirmationGUI.php';
                $confirm = new ilConfirmationGUI();
                $confirm->setFormAction($ilCtrl->getFormAction($this));
                $confirm->setHeaderText($GLOBALS['lng']->txt('cal_ch_grp_delete_sure'));
                $confirm->setConfirm($GLOBALS['lng']->txt('delete'), 'deleteGroup');
                $confirm->setCancel($GLOBALS['lng']->txt('cancel'), 'groupList');
                
                foreach($groups as $grp_id)
                {
                        include_once './Services/Calendar/classes/ConsultationHours/class.ilConsultationHourGroup.php';
                        $group = new ilConsultationHourGroup($grp_id);
                        
                        $confirm->addItem('groups[]', $grp_id, $group->getTitle());
                }
                $tpl->setContent($confirm->getHTML());
        }
        
        protected function deleteGroup()
        {
                global $ilCtrl;
                
                foreach((array) $_REQUEST['groups'] as $grp_id)
                {
                        include_once './Services/Calendar/classes/ConsultationHours/class.ilConsultationHourGroup.php';
                        $group = new ilConsultationHourGroup($grp_id);
                        $group->delete();
                }
                ilUtil::sendSuccess($GLOBALS['lng']->txt('cal_ch_grp_deleted'));
                $ilCtrl->redirect($this,'groupList');
        }

        protected function initGroupForm($a_group_id = 0)
        {
                include_once './Services/Calendar/classes/ConsultationHours/class.ilConsultationHourGroup.php';
                $group = new ilConsultationHourGroup($a_group_id);
                
                include_once 'Services/Form/classes/class.ilPropertyFormGUI.php';
                $form = new ilPropertyFormGUI();
                $form->setFormAction($GLOBALS['ilCtrl']->getFormAction($this));
                
                if($a_group_id)
                {
                        $form->setTitle($GLOBALS['lng']->txt('cal_ch_grp_update_tbl'));
                        $form->addCommandButton('updateGroup', $GLOBALS['lng']->txt('save'));
                        $form->addCommandButton('groupList', $GLOBALS['lng']->txt('cancel'));
                }
                else
                {
                        $form->setTitle($GLOBALS['lng']->txt('cal_ch_grp_add_tbl'));
                        $form->addCommandButton('saveGroup', $GLOBALS['lng']->txt('save'));
                        $form->addCommandButton('appointmentList', $GLOBALS['lng']->txt('cancel'));
                }
                
                $title = new ilTextInputGUI($GLOBALS['lng']->txt('title'),'title');
                $title->setMaxLength(128);
                $title->setSize(40);
                $title->setRequired(true);
                $title->setValue($group->getTitle());
                $form->addItem($title);
                
                $multiple = new ilNumberInputGUI($GLOBALS['lng']->txt('cal_ch_grp_multiple'),'multiple');
                $multiple->setRequired(true);
                $multiple->setMinValue(1);
                $multiple->setSize(1);
                $multiple->setMaxLength(2);
                $multiple->setInfo($GLOBALS['lng']->txt('cal_ch_grp_multiple_info'));
                $multiple->setValue($group->getMaxAssignments());
                $form->addItem($multiple);
                
                return $form;
        }
        
        protected function bookingList()
        {
                global $ilToolbar, $ilTabs, $tpl;
                
                $this->setSubTabs();
                $ilTabs->activateSubTab('cal_ch_app_bookings');
                
                include_once './Services/Calendar/classes/ConsultationHours/class.ilConsultationHourBookingTableGUI.php';
                $btable = new ilConsultationHourBookingTableGUI($this,'bookingList',$this->getUserId());
                $btable->parse(ilConsultationHourAppointments::getAppointmentIds($this->getUserId()));
                $tpl->setContent($btable->getHTML());
        }
        
        protected function confirmDeleteBooking()
        {
                $this->confirmRejectBooking(false);
        }

        protected function confirmRejectBooking($a_send_notification = true)
        {
                global $ilTabs, $tpl;
                
                $this->setSubTabs();
                $ilTabs->activateSubTab('cal_ch_app_bookings');
                
                include_once('./Services/Utilities/classes/class.ilConfirmationGUI.php');

                $confirm = new ilConfirmationGUI();
                $confirm->setFormAction($this->ctrl->getFormAction($this));
                
                if($a_send_notification)
                {
                        ilUtil::sendInfo($this->lng->txt('cal_ch_cancel_booking_info'));
                        $confirm->setHeaderText($this->lng->txt('cal_ch_cancel_booking_sure'));
                        $confirm->setConfirm($this->lng->txt('cal_ch_reject_booking'), 'rejectBooking');
                }
                else
                {
                        ilUtil::sendInfo($this->lng->txt('cal_ch_delete_booking_info'));
                        $confirm->setHeaderText($this->lng->txt('cal_ch_delete_booking_sure'));
                        $confirm->setConfirm($this->lng->txt('cal_ch_delete_booking'), 'deleteBooking');
                }
                
                $confirm->setCancel($this->lng->txt('cancel'),'bookingList');

                include_once 'Services/Calendar/classes/class.ilCalendarEntry.php';
                foreach((array) $_REQUEST['bookuser'] as $bookuser)
                {
                        $ids = explode('_',$bookuser);
                        
                        include_once './Services/Calendar/classes/class.ilCalendarEntry.php';
                        include_once './Services/User/classes/class.ilUserUtil.php';
                        $entry = new ilCalendarEntry($ids[0]);
                        $confirm->addItem(
                                        'bookuser[]',
                                        $bookuser,
                                        ilUserUtil::getNamePresentation(
                                                        $ids[1],
                                                        true,
                                                        false,
                                                        '',
                                                        true,
                                                        true
                                                ).', '.ilDatePresentation::formatDate($entry->getStart())
                                );
                }
                $tpl->setContent($confirm->getHTML());
        }
        
        protected function deleteBooking()
        {
                $this->rejectBooking(false);
        }
        
        protected function rejectBooking($a_send_notification = true)
        {
                global $ilCtrl;
                
                foreach((array) $_REQUEST['bookuser'] as $bookuser)
                {
                        $ids = explode('_',$bookuser);
                        
                        include_once './Services/Calendar/classes/ConsultationHours/class.ilConsultationHourUtils.php';
                        ilConsultationHourUtils::cancelBooking($ids[1],$ids[0],$a_send_notification);
                }
                if($a_send_notification)
                {
                        ilUtil::sendSuccess($this->lng->txt('cal_ch_canceled_bookings'),true);
                }
                else
                {
                        ilUtil::sendSuccess($this->lng->txt('cal_ch_deleted_bookings'),true);
                }
                $ilCtrl->redirect($this,'bookingList');
        }
        
        protected function appointmentList()
        {
                global $ilToolbar, $ilHelp, $ilTabs;

                $ilHelp->setScreenId("consultation_hours");
                
                $ilToolbar->setFormAction($this->ctrl->getFormAction($this));
                $ilToolbar->addButton($this->lng->txt('cal_ch_add_sequence'),$this->ctrl->getLinkTarget($this,'createSequence'));
                
                $this->setSubTabs();
                $ilTabs->activateSubTab('cal_ch_app_list');
                
                include_once './Services/Calendar/classes/ConsultationHours/class.ilConsultationHoursTableGUI.php';
                $tbl = new ilConsultationHoursTableGUI($this,'appointmentList',$this->getUserId());
                $tbl->parse();
                $this->tpl->setContent($tbl->getHTML());
        }
        
        protected function createSequence()
        {
                $this->initFormSequence(self::MODE_CREATE);
                
                $this->booking = new ilBookingEntry();
                $this->form->getItemByPostVar('bo')->setValue($this->booking->getNumberOfBookings());   
                $this->form->getItemByPostVar('ap')->setValue(1);
                $this->form->getItemByPostVar('du')->setMinutes(15);
                $this->form->getItemByPostVar('st')->setDate(
                        new ilDateTime(mktime(8,0,0,date('n',time()),date('d',time()),date('Y',time())),IL_CAL_UNIX));

                $this->tpl->setContent($this->form->getHTML());
        }
        
        protected function initFormSequence($a_mode)
        {
                include_once './Services/Form/classes/class.ilPropertyFormGUI.php';
                
                include_once('./Services/YUI/classes/class.ilYuiUtil.php');
                ilYuiUtil::initDomEvent();
                
                $this->form = new ilPropertyFormGUI();
                $this->form->setFormAction($this->ctrl->getFormAction($this));
                
                switch($a_mode)
                {
                        case self::MODE_CREATE:
                                $this->form->setTitle($this->lng->txt('cal_ch_add_sequence'));
                                $this->form->addCommandButton('saveSequence', $this->lng->txt('save'));
                                $this->form->addCommandButton('appointmentList', $this->lng->txt('cancel'));
                                break;

                        /*
                        case self::MODE_UPDATE:
                                $this->form->setTitle($this->lng->txt('cal_ch_edit_sequence'));
                                $this->form->addCommandButton('updateSequence', $this->lng->txt('save'));
                                $this->form->addCommandButton('appointmentList', $this->lng->txt('cancel'));
                                break;
                         */

                        case self::MODE_MULTI:
                                $this->form->setTitle($this->lng->txt('cal_ch_multi_edit_sequence'));
                                $this->form->addCommandButton('updateMulti', $this->lng->txt('save'));
                                $this->form->addCommandButton('appointmentList', $this->lng->txt('cancel'));
                                break;
                }
                
                // in case of existing groups show a selection
                include_once './Services/Calendar/classes/ConsultationHours/class.ilConsultationHourGroups.php';
                if(count($options = ilConsultationHourGroups::getGroupSelectOptions($this->getUserId())))
                {
                        $group = new ilSelectInputGUI($this->lng->txt('cal_ch_grp_selection'),'grp');
                        $group->setOptions($options);
                        $group->setRequired(false);
                        $this->form->addItem($group);
                }

                // Title 
                $ti = new ilTextInputGUI($this->lng->txt('title'),'ti');
                $ti->setSize(32);
                $ti->setMaxLength(128);
                $ti->setRequired(true);
                $this->form->addItem($ti);

                if($a_mode != self::MODE_MULTI)
                {
                        // Start
                        include_once './Services/Form/classes/class.ilDateTimeInputGUI.php';
                        $dur = new ilDateTimeInputGUI($this->lng->txt('cal_start'),'st');
                        $dur->setShowTime(true);
                        $dur->setRequired(true);
                        $this->form->addItem($dur);

                        // Duration
                        $du = new ilDurationInputGUI($this->lng->txt('cal_ch_duration'),'du');
                        $du->setShowMinutes(true);
                        $du->setShowHours(true);
                        $this->form->addItem($du);

                        // Number of appointments
                        $nu = new ilNumberInputGUI($this->lng->txt('cal_ch_num_appointments'),'ap');
                        $nu->setInfo($this->lng->txt('cal_ch_num_appointments_info'));
                        $nu->setSize(2);
                        $nu->setMaxLength(2);
                        $nu->setRequired(true);
                        $nu->setMinValue(1);
                        $this->form->addItem($nu);

                        // Recurrence
                        include_once('./Services/Calendar/classes/Form/class.ilRecurrenceInputGUI.php');
                        $rec = new ilRecurrenceInputGUI($this->lng->txt('cal_recurrences'),'frequence');
                        $rec->setEnabledSubForms(
                                array(
                                        IL_CAL_FREQ_DAILY,
                                        IL_CAL_FREQ_WEEKLY,
                                        IL_CAL_FREQ_MONTHLY
                                )
                        );
                        $this->form->addItem($rec);
                }
                
                // Number of bookings
                $nu = new ilNumberInputGUI($this->lng->txt('cal_ch_num_bookings'),'bo');
                $nu->setSize(2);
                $nu->setMaxLength(2);
                $nu->setMinValue(1);
                $nu->setRequired(true);
                $this->form->addItem($nu);

                // Deadline
                $dead = new ilDurationInputGUI($this->lng->txt('cal_ch_deadline'),'dead');
                $dead->setInfo($this->lng->txt('cal_ch_deadline_info'));
                $dead->setShowMinutes(false);
                $dead->setShowHours(true);
                $dead->setShowDays(true);
                $this->form->addItem($dead);

                // Location
                $lo = new ilTextInputGUI($this->lng->txt('cal_where'),'lo');
                $lo->setSize(32);
                $lo->setMaxLength(128);
                $this->form->addItem($lo);
                
                // Description
                $de = new ilTextAreaInputGUI($this->lng->txt('description'),'de');
                $de->setRows(10);
                $de->setCols(60);
                $this->form->addItem($de);

                // Target Object
                $tgt = new ilTextInputGUI($this->lng->txt('cal_ch_target_object'),'tgt');
                $tgt->setInfo($this->lng->txt('cal_ch_target_object_info'));
                $tgt->setSize(16);
                $tgt->setMaxLength(128);
                $this->form->addItem($tgt);
        }
        
        protected function saveSequence()
        {
                global $ilObjDataCache;
                
                $this->initFormSequence(self::MODE_CREATE);

                if($this->form->checkInput())
                {
                        $this->form->setValuesByPost();
                        
                        $booking = new ilBookingEntry();
                        $booking->setObjId($this->getUserId());
                        $booking->setNumberOfBookings($this->form->getInput('bo'));

                        $deadline = $this->form->getInput('dead');
                        $deadline = $deadline['dd'] * 24 + $deadline['hh'];
                        $booking->setDeadlineHours($deadline);
                        
                        // consultation hour group
                        include_once './Services/Calendar/classes/ConsultationHours/class.ilConsultationHourGroups.php';
                        if(ilConsultationHourGroups::getGroupsOfUser($this->getUserId()))
                        {
                                $booking->setBookingGroup((int) $this->form->getInput('grp'));
                        }

                        $tgt = explode(',',$this->form->getInput('tgt'));
                        $obj_ids = array();
                        foreach((array) $tgt as $ref_id)
                        {
                                if(!trim($ref_id))
                                {
                                        continue;
                                }
                                $obj_id = $ilObjDataCache->lookupObjId($ref_id);
                                $type = ilObject::_lookupType($obj_id);
                                $valid_types = array('crs','grp');
                                if(!$obj_id or !in_array($type, $valid_types))
                                {
                                        ilUtil::sendFailure($this->lng->txt('cal_ch_unknown_repository_object'));
                                        $this->tpl->setContent($this->form->getHTML());
                                        return;
                                }
                                
                                $obj_ids[] = $obj_id;
                        }
                        $booking->setTargetObjIds($obj_ids);
                        
                        $booking->save();
                        $this->createAppointments($booking);
                        
                        ilUtil::sendSuccess($this->lng->txt('settings_saved'), true);
                        $this->ctrl->redirect($this,'appointmentList');
                }
                else
                {
                        $this->form->setValuesByPost();
                        $this->tpl->setContent($this->form->getHTML());
                }
        }
        
        protected function createAppointments(ilBookingEntry $booking)
        {
                include_once './Services/Calendar/classes/class.ilDateList.php';
                $concurrent_dates = new ilDateList(ilDateList::TYPE_DATETIME);
                $start = clone $this->form->getItemByPostVar('st')->getDate();
                for($i = 0; $i < $this->form->getItemByPostVar('ap')->getValue(); $i++)
                {
                        $concurrent_dates->add(clone $start);
                        
                        $start->increment(ilDateTime::MINUTE,$this->form->getItemByPostVar('du')->getMinutes());
                        $start->increment(ilDateTime::HOUR,$this->form->getItemByPostVar('du')->getHours());
                        #$start = new ilDateTime(,IL_CAL_UNIX);
                }
                
                include_once './Services/Calendar/classes/class.ilCalendarUtil.php';
                $def_cat = ilCalendarUtil::initDefaultCalendarByType(ilCalendarCategory::TYPE_CH,$this->getUserId(),$this->lng->txt('cal_ch_personal_ch'),true);
                
                // Add calendar appointment for each 
                include_once './Services/Calendar/classes/class.ilCalendarCategoryAssignments.php';
                include_once './Services/Calendar/classes/class.ilCalendarEntry.php';
                include_once './Services/Calendar/classes/class.ilCalendarRecurrenceCalculator.php';
                include_once './Services/Booking/classes/class.ilBookingPeriod.php';
                
                $num_appointments = 0;
                foreach($concurrent_dates as $dt)
                {
                        if($num_appointments >= self::MAX_APPOINTMENTS_PER_SEQUENCE)
                        {
                                break;
                        }
                        
                        $end = clone $dt;
                        $end->increment(ilDateTime::MINUTE,$this->form->getItemByPostVar('du')->getMinutes());
                        $end->increment(ilDateTime::HOUR,$this->form->getItemByPostVar('du')->getHours());

                        $calc = new ilCalendarRecurrenceCalculator(
                                new ilBookingPeriod($dt,$end),
                                $this->form->getItemByPostVar('frequence')->getRecurrence()
                        );

                        // Calculate with one year limit
                        $limit = clone $dt;
                        $limit->increment(ilDateTime::YEAR,1);

                        $date_list = $calc->calculateDateList($dt,$limit);

                        $num = 0;
                        foreach($date_list as $app_start)
                        {
                                $app_end = clone $app_start;
                                $app_end->increment(ilDateTime::MINUTE,$this->form->getItemByPostVar('du')->getMinutes());
                                $app_end->increment(ilDateTime::HOUR,$this->form->getItemByPostVar('du')->getHours());
                                
                                
                                $entry = new ilCalendarEntry();
                                $entry->setContextId($booking->getId());
                                $entry->setTitle($this->form->getInput('ti'));
                                $entry->setSubtitle("#consultationhour#"); // dynamic, see ilCalendarEntry
                                $entry->setDescription($this->form->getInput('de'));
                                $entry->setLocation($this->form->getInput('lo'));
                                $entry->setStart($app_start);
                                $entry->setEnd($app_end);
                                
                                $entry->setTranslationType(IL_CAL_TRANSLATION_SYSTEM);
                                $entry->save();
                                
                                $cat_assign = new ilCalendarCategoryAssignments($entry->getEntryId());
                                $cat_assign->addAssignment($def_cat->getCategoryID());
                                
                                $num_appointments++;
                        }
                }
        }
        
        protected function setTabs()
        {
                global $ilTabs, $ilUser, $ilCtrl;

                $ilCtrl->setParameter($this, 'user_id', '');
                $ilTabs->addTab('consultation_hours_'.$ilUser->getId(), $this->lng->txt('cal_ch_ch'), $this->ctrl->getLinkTarget($this,'appointmentList'));

                foreach(ilConsultationHourAppointments::getManagedUsers() as $user_id => $login)
                {
                        $ilCtrl->setParameter($this, 'user_id', $user_id);
                        $ilTabs->addTab('consultation_hours_'.$user_id, $this->lng->txt('cal_ch_ch').': '.$login, $this->ctrl->getLinkTarget($this,'appointmentList'));                 
                }
                $ilCtrl->setParameter($this, 'user_id', '');

                $ilTabs->addTab('ch_settings', $this->lng->txt('settings'), $this->ctrl->getLinkTarget($this,'settings'));

                $ilTabs->activateTab('consultation_hours_'.$this->getUserId());
        }

        protected function setSubTabs()
        {
                global $ilTabs, $ilCtrl;
                
                $ilCtrl->setParameter($this,'user_id',$this->getUserId());
                $ilTabs->addSubTab('cal_ch_app_list',$this->lng->txt('cal_ch_app_list'),$ilCtrl->getLinkTarget($this,'appointmentList'));
                $ilTabs->addSubTab('cal_ch_app_grp',$this->lng->txt('cal_ch_app_grp'),$ilCtrl->getLinkTarget($this,'groupList'));
                $ilTabs->addSubTab('cal_ch_app_bookings',$this->lng->txt('cal_ch_app_bookings'),$ilCtrl->getLinkTarget($this,'bookingList'));
        }

        public function edit()
        {
                global $ilTabs;
                
                if(!isset($_REQUEST['apps']))
                {
                        ilUtil::sendFailure($this->lng->txt('select_one'));
                        return $this->appointmentList();
                }

                $this->initFormSequence(self::MODE_MULTI);
                
                if($_REQUEST['apps'] && !is_array($_REQUEST['apps']))
                {
                        $_REQUEST['apps'] = explode(';', $_REQUEST['apps']);
                }

                $hidden = new ilHiddenInputGUI('apps');
                $hidden->setValue(implode(';', $_REQUEST['apps']));
                $this->form->addItem($hidden);
                
                include_once 'Services/Calendar/classes/class.ilCalendarEntry.php';
                $first = $_REQUEST['apps'];
                $first = array_shift($_REQUEST['apps']);
                $entry = new ilCalendarEntry($first);

                $this->form->getItemByPostVar('ti')->setValue($entry->getTitle());
                $this->form->getItemByPostVar('lo')->setValue($entry->getLocation());
                $this->form->getItemByPostVar('de')->setValue($entry->getDescription());
                
                include_once 'Services/Booking/classes/class.ilBookingEntry.php';
                $booking = new ilBookingEntry($entry->getContextId());

                $this->form->getItemByPostVar('bo')->setValue($booking->getNumberOfBookings());
                
                $ref_ids = array();
                foreach($booking->getTargetObjIds() as $obj_id)
                {
                        $refs = ilObject::_getAllReferences($obj_id);
                        $ref_ids[] = end($refs);
                }
                $this->form->getItemByPostVar('tgt')->setValue(implode(',',$ref_ids));
                
                $deadline = $booking->getDeadlineHours();
                $this->form->getItemByPostVar('dead')->setDays(floor($deadline/24));
                $this->form->getItemByPostVar('dead')->setHours($deadline%24);
                
                if($booking->getBookingGroup())
                {
                        $this->form->getItemByPostVar('grp')->setValue($booking->getBookingGroup());
                }

                $this->tpl->setContent($this->form->getHTML());
        }

        protected function updateMulti()
        {
                global $ilObjDataCache;
                
                $this->initFormSequence(self::MODE_MULTI);

                if($this->form->checkInput())
                {
                        $this->form->setValuesByPost();
                        $apps = explode(';', $_POST['apps']);
                        
                        include_once 'Services/Booking/classes/class.ilBookingEntry.php';
                        include_once 'Services/Calendar/classes/class.ilCalendarEntry.php';

                        // do collision-check if max bookings were reduced
                        // no collision check
                        $first = $apps;
                        $first = array_shift($first);
                        $entry = ilBookingEntry::getInstanceByCalendarEntryId($first);
                        #if($this->form->getInput('bo') < $entry->getNumberOfBookings())
                        #{
                        #   $this->edit();
                        #   return;
                        #}

                        // create new context
                        $booking = new ilBookingEntry();
                        
                        $booking->setObjId($this->getUserId());
                        $booking->setNumberOfBookings($this->form->getInput('bo'));

                        $deadline = $this->form->getInput('dead');
                        $deadline = $deadline['dd']*24+$deadline['hh'];
                        $booking->setDeadlineHours($deadline);

                        $tgt = explode(',',$this->form->getInput('tgt'));
                        $obj_ids = array();
                        foreach((array) $tgt as $ref_id)
                        {
                                if(!trim($ref_id))
                                {
                                        continue;
                                }
                                $obj_id = $ilObjDataCache->lookupObjId($ref_id);
                                $type = ilObject::_lookupType($obj_id);
                                $valid_types = array('crs','grp');
                                if(!$obj_id or !in_array($type, $valid_types))
                                {
                                        ilUtil::sendFailure($this->lng->txt('cal_ch_unknown_repository_object'));
                                        $this->edit();
                                        return;
                                }
                                $obj_ids[] = $obj_id;
                        }
                        $booking->setTargetObjIds($obj_ids);
                        
                        include_once './Services/Calendar/classes/ConsultationHours/class.ilConsultationHourGroups.php';
                        if(ilConsultationHourGroups::getCountGroupsOfUser($this->getUserId()))
                        {
                                $booking->setBookingGroup($this->form->getInput('grp'));
                        }
                        $booking->save();


                        // update entries
                        $title = $this->form->getInput('ti');
                        $location = $this->form->getInput('lo');
                        $description = $this->form->getInput('de');
                        
                        foreach($apps as $item_id)
                        {
                                $entry = new ilCalendarEntry($item_id);
                                $entry->setContextId($booking->getId());
                                $entry->setTitle($title);
                                $entry->setLocation($location);
                                $entry->setDescription($description);
                                $entry->update();
                        }

                        ilBookingEntry::removeObsoleteEntries();

                        ilUtil::sendSuccess($this->lng->txt('settings_saved'), true);
                        $this->ctrl->redirect($this,'appointmentList');
                }
                $this->tpl->setContent($this->form->getHTML());
        }

        public function confirmDelete()
        {
                global $tpl;
                
                if(!isset($_REQUEST['apps']))
                {
                        ilUtil::sendFailure($this->lng->txt('select_one'));
                        return $this->appointmentList();
                }

                include_once('./Services/Utilities/classes/class.ilConfirmationGUI.php');
                
                
                $this->ctrl->saveParameter($this,array('seed','app_id','dt'));

                $confirm = new ilConfirmationGUI();
                $confirm->setFormAction($this->ctrl->getFormAction($this));
                $confirm->setHeaderText($this->lng->txt('cal_delete_app_sure'));
                $confirm->setCancel($this->lng->txt('cancel'),'cancel');

                include_once 'Services/Calendar/classes/class.ilCalendarEntry.php';
                
                $bookings_available = array();
                foreach((array) $_REQUEST['apps'] as $entry_id)
                {
                        $entry = new ilCalendarEntry($entry_id);
                        $confirm->addItem('apps[]', $entry_id, ilDatePresentation::formatDate($entry->getStart()).', '.$entry->getTitle());
                        
                        include_once './Services/Booking/classes/class.ilBookingEntry.php';
                        if(ilBookingEntry::lookupBookingsForAppointment($entry_id))
                        {
                                $bookings_available[] = ilDatePresentation::formatDate($entry->getStart()).', '.$entry->getTitle();
                        }
                }
                
                if($bookings_available)
                {
                        ilUtil::sendInfo($this->lng->txt('cal_ch_delete_app_booking_info').'<br />'.implode('<br />',$bookings_available));
                }

                $confirm->setConfirm($this->lng->txt('delete'),'delete');
                $confirm->setCancel($this->lng->txt('cancel'),'appointmentList');
                
                $tpl->setContent($confirm->getHTML());
        }

        public function delete()
        {
                if(!isset($_POST['apps']))
                {
                        ilUtil::sendFailure($this->lng->txt('select_one'));
                        return $this->appointmentList();
                }

                include_once 'Services/Calendar/classes/class.ilCalendarEntry.php';
                include_once 'Services/Calendar/classes/class.ilCalendarCategoryAssignments.php';
                foreach($_POST['apps'] as $entry_id)
                {
                        // cancel booking for users
                        $booking = ilBookingEntry::getInstanceByCalendarEntryId($entry_id);
                        if($booking)
                        {
                                foreach($booking->getCurrentBookings($entry_id) as $user_id)
                                {
                                        include_once './Services/Calendar/classes/ConsultationHours/class.ilConsultationHourUtils.php';
                                        ilConsultationHourUtils::cancelBooking($user_id,$entry_id,false);
                                }
                        }
                        // remove calendar entries
                        include_once './Services/Calendar/classes/class.ilCalendarEntry.php';
                        $entry = new ilCalendarEntry($entry_id);
                        $entry->delete();

                        ilCalendarCategoryAssignments::_deleteByAppointmentId($entry_id);                               
                }
                
                ilBookingEntry::removeObsoleteEntries();

                ilUtil::sendSuccess($this->lng->txt('cal_deleted_app'), true);
                $this->ctrl->redirect($this, 'appointmentList');
        }

        public function showProfile()
        {
                global $tpl, $ilTabs, $ilCtrl;

                $ilTabs->clearTargets();

                $user_id = (int)$_GET['user'];
        
                include_once 'Services/User/classes/class.ilPublicUserProfileGUI.php';
                $profile = new ilPublicUserProfileGUI($user_id);
                $profile->setBackUrl($this->getProfileBackUrl());
                $tpl->setContent($ilCtrl->getHTML($profile));
        }
        
        protected function getProfileBackUrl()
        {
                // from repository 
                if(isset($_REQUEST["ref_id"]))
                {
                        $url = $this->ctrl->getLinkTargetByClass('ilCalendarMonthGUI');
                }
                // from panel
                else if(isset($_GET['panel']))
                {
                        $url = $this->ctrl->getLinkTargetByClass('ilCalendarPresentationGUI');
                }
                // from appointments
                else
                {
                        $url = $this->ctrl->getLinkTarget($this, 'appointmentList');
                }
                return $url;
        }

        public function settings()
        {
                global $tpl, $ilTabs, $ilHelp;

                $ilHelp->setScreenId("consultation_hours_settings");
                $ilTabs->activateTab('ch_settings');
                
                $form = $this->initSettingsForm();
                $tpl->setContent($form->getHTML());
        }

        protected function initSettingsForm()
        {
                global $ilDB, $ilUser;

                include_once './Services/Form/classes/class.ilPropertyFormGUI.php';

                $form = new ilPropertyFormGUI();
                $form->setFormAction($this->ctrl->getFormAction($this));

                $mng = new ilTextInputGUI($this->lng->txt('cal_ch_manager'), 'mng');
                $mng->setInfo($this->lng->txt('cal_ch_manager_info'));
                $form->addItem($mng);

                $mng->setValue(ilConsultationHourAppointments::getManager(true));

                $form->setTitle($this->lng->txt('settings'));
                $form->addCommandButton('updateSettings', $this->lng->txt('save'));
                // $form->addCommandButton('appointmentList', $this->lng->txt('cancel'));
                return $form;
        }

        public function updateSettings()
        {
                global $ilDB, $ilCtrl, $ilUser, $tpl, $ilTabs;
                
                $form = $this->initSettingsForm();
                if($form->checkInput())
                {
                        $mng = $form->getInput('mng');
                        if(ilConsultationHourAppointments::setManager($mng))
                        {
                                ilUtil::sendSuccess($this->lng->txt('settings_saved'), true);
                                $ilCtrl->redirect($this, 'settings');
                        }
                        else
                        {
                                $ilTabs->activateTab('ch_settings');

                                ilUtil::sendFailure($this->lng->txt('cal_ch_unknown_user'));
                                $field = $form->getItemByPostVar('mng');
                                $field->setValue($mng);
                                $tpl->setContent($form->getHTML());
                                return;
                        }
                }
        }
}
?>