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Content-Disposition: form-data; name="uploaded_data"; filename="calendar_entries_controller.php"
Content-Type: application/x-php

<?php
class CalendarEntriesController extends ApplicationController {
	public function __construct() {
		parent::__construct();
		$this->before_filter(array('reject_anonymous_user'),
			array('only' => array('new_calendar_entry', 'create', 'edit', 'update', 'destroy',
					'update_time', 'participate', 'unparticipate'))
		);
		$this->before_filter('set_section');
	}
	
	public function index() {
		$this->redirect_to("/calendar_entries/show_by_week");
	}
	
	public function new_calendar_entry() {
	}
	
	public function create() {
		if (!isset($this->params['calendar_entry'])) {
			return;
		}

		$this->variables->calendar_entry = $calendar_entry = new CalendarEntry();
		$calendar_entry->user_id = $this->current_user->id;
		$calendar_entry->assign($this->params['calendar_entry']);
		if($calendar_entry->is_valid()) {
			$calendar_entry->convert_to_database_types();
			$calendar_entry->save();
			if (isset($this->params['attending']) && $this->params['attending'] == 'yes') {
				$event = new Event();
				$event->calendar_entry_id = $calendar_entry->id;
				$event->user_id = $this->current_user->id;
				$event->date = $calendar_entry->starting_date;
				$event->save();
			}
			$this->redirect_to("/calendar_entries");
		} else {
			$this->render(array('action' => 'new_calendar_entry'));
		}
	}
	
	public function show_by_week() {
		if (!isset($this->params['year']) || !isset($this->params['week'])) {
			$year = strftime("%Y");
			$week = strftime("%V");
		} else {
			$year = (int)$this->params['year'];
			$week = (int)$this->params['week'];
		}
		if ($week < 0 || $week > 52) {
			die("Invalid date.");
		}
		$personal = (isset($this->params['personal']) && $this->params['personal']) ? true : false;
		$start_date = strtotime("+" . ($week - 1) . " weeks", mktime(0, 0, 0, 1, 1, $year));
		
		$CalendarEntry = $this->CalendarEntry;
		if ($personal && !is_null($this->current_user)) {
			$conditions = array('DATE(ending_date) >= ? AND DATE(starting_date) < ? AND user_id = ?',
				strftime("%Y-%m-%d", $start_date),
				strftime("%Y-%m-%d", $start_date + 7 * 60 * 60 * 24),
				$this->current_user->id
			);
		} else {
			$conditions = array('DATE(ending_date) >= ? AND DATE(starting_date) < ?',
				strftime("%Y-%m-%d", $start_date),
				strftime("%Y-%m-%d", $start_date + 7 * 60 * 60 * 24)
			);
		}
		if (is_null($this->current_user)) {
			$conditions[0] .= ' AND public';
		} else {
			$conditions[0] .= ' AND (public OR user_id = ?)';
			$conditions[] = $this->current_user->id;
		}
		$calendar_entries = $CalendarEntry->find('all',
			array('conditions' => $conditions,
				'order' => 'starting_date ASC'
			)
		);
		$this->variables->today = $start_date;
		$this->variables->year = $year;
		$this->variables->week = $week;
		$this->variables->calendar_entries = $calendar_entries;
		
		if ($week == 52) {
			$next_week = 1;
			$next_week_url = "/calendar_entries/show_by_week?year=" . ($year + 1) . "&week=1";
		} else {
			$next_week = $week + 1;
			$next_week_url = "/calendar_entries/show_by_week?year=$year&week=" . $next_week;
		}
		if ($week == 1) {
			$last_week = 52;
			$last_week_url = "/calendar_entries/show_by_week?year=" . ($year - 1) . "&week=52";
		} else {
			$last_week = $week - 1;
			$last_week_url = "/calendar_entries/show_by_week?year=$year&week=" . $last_week;
		}
		$next_week_url .= "&personal=$personal";
		$last_week_url .= "&personal=$personal";
		$args = strftime("year=%Y&month=%m&day=%e&personal=$personal", $start_date);
		$day_view_url = "/calendar_entries/show_by_date?$args";
		$personal_or_shared_calendar = $personal ? "View shared calendar" : "View personal calendar";
		$personal_or_shared_calendar_url = "/calendar_entries/show_by_week?year=$year&week=$week&personal=" . (!$personal);
		$this->variables->week_start = $start_date;
		$this->variables->next_week = $next_week;
		$this->variables->next_week_url = $next_week_url;
		$this->variables->last_week = $last_week;
		$this->variables->last_week_url = $last_week_url;
		$this->variables->day_view_url = $day_view_url;
		$this->variables->personal = $personal;
		$this->variables->personal_or_shared_calendar = $personal_or_shared_calendar;
		$this->variables->personal_or_shared_calendar_url = $personal_or_shared_calendar_url;
	}
	
	public function show_by_date() {
		$year  = (int)$this->params['year'];
		$month = (int)$this->params['month'];
		$day   = (int)$this->params['day'];
		$personal = (isset($this->params['personal']) && $this->params['personal']) ? true : false;
		
		if(checkdate($month, $day, $year)) {
			$date = mktime(0, 0, 0, $month, $day, $year);
			
			$CalendarEntry = $this->CalendarEntry;
			if ($personal && !is_null($this->current_user)) {
				$conditions = array(
					'? BETWEEN DATE(starting_date) AND DATE(ending_date) AND user_id = ?',
					strftime("%Y-%m-%d", $date),
					$this->current_user->id
				);
			} else {
				$conditions = array(
					'? BETWEEN DATE(starting_date) AND DATE(ending_date)',
					strftime("%Y-%m-%d", $date)
				);
			}
			if (is_null($this->current_user)) {
				$conditions[0] .= ' AND public';
			} else {
				$conditions[0] .= ' AND (public OR user_id = ?)';
				$conditions[] = $this->current_user->id;
			}
			$this->variables->calendar_entries = $CalendarEntry->find('all',
				array('conditions' => $conditions,
					'order' => 'starting_date ASC'
				)
			);
			$this->variables->date = $date;
			
			$prev_timestamp = $date - 60 * 60 * 24;
			$prev_date = getdate($prev_timestamp);
			$this->variables->prev_timestamp = $prev_timestamp;
			$this->variables->prev_url = sprintf('/calendar_entries/show_by_date?year=%d&month=%d&day=%d&personal=%s',
				$prev_date['year'], $prev_date['mon'], $prev_date['mday'], $personal);
			
			$next_timestamp = $date + 60 * 60 * 24;
			$next_date = getdate($next_timestamp);
			$this->variables->next_timestamp = $next_timestamp;
			$this->variables->next_url = sprintf('/calendar_entries/show_by_date?year=%d&month=%d&day=%d&personal=%s',
				$next_date['year'], $next_date['mon'], $next_date['mday'], $personal);
			
			$year = strftime("%Y", $date);
			$week = strftime("%V", $date);
			$week_view_url = "/calendar_entries/show_by_week?year=$year&week=$week&personal=$personal";
			$this->variables->year = $year;
			$this->variables->week = $week;
			$this->variables->week_view_url = $week_view_url;
			
			$personal_or_shared_calendar = $personal ? "View shared calendar" : "View personal calendar";
			$personal_or_shared_calendar_url = "/calendar_entries/show_by_date?year=$year&month=$month&day=$day&personal=" . (!$personal);
			$this->variables->personal = $personal;
			$this->variables->personal_or_shared_calendar = $personal_or_shared_calendar;
			$this->variables->personal_or_shared_calendar_url = $personal_or_shared_calendar_url;
		} else {
			die("Invalid date");
		}
	}
	
	public function show() {
		$id = (int)$this->params['id'];
		$CalendarEntry = $this->CalendarEntry;
		$calendar_entry = $CalendarEntry->find_by_id($id);
		if (!$calendar_entry->may_be_viewed_by($this->current_user)) {
			die("You have no permission to view this page.");
		}
		$this->variables->calendar_entry = $calendar_entry;
		if (!is_null($calendar_entry)) {
			$this->variables->participants = $calendar_entry->get_participants();
		}
	}
	
	public function edit() {
		$id = (int)$this->params['id'];
		$CalendarEntry = $this->CalendarEntry;
		$calendar_entry = $CalendarEntry->find_by_id($id);
		if (is_null($calendar_entry)) {
			die("Calendar entry #" . htmlspecialchars($id) . " not found!");
		}
		if ($calendar_entry->user_id != $this->current_user->id) {
			die("You are not allowed to edit this calendar entry.");
		}
		$calendar_entry->convert_from_database_types();
		if ($calendar_entry->has_started()) {
			die("Cannot edit an event that has already started.");
		}
		$this->variables->calendar_entry = $calendar_entry;
	}
	
	public function update() {
		if (!isset($this->params['calendar_entry'])) {
			return;
		}
		$id = (int)$this->params['id'];
		$CalendarEntry = $this->CalendarEntry;
		$calendar_entry = $CalendarEntry->find_by_id($id);
		if (is_null($calendar_entry)) {
			die("Calendar entry #" . htmlspecialchars($id) . " not found!");
		}
		if ($calendar_entry->user_id != $this->current_user->id) {
			die("You are not allowed to edit this calendar entry.");
		}
		if ($calendar_entry->has_started()) {
			die("Cannot edit an event that has already started.");
		}
		$calendar_entry->assign($this->params['calendar_entry']);
		if (!isset($this->params['calendar_entry']['public'])) {
			$calendar_entry->public = false;
		}
		if ($calendar_entry->is_valid()) {
			$calendar_entry->convert_to_database_types();
			$calendar_entry->save();
			$this->redirect_to('/calendar_entries');
		} else {
			$this->variables->calendar_entry = $calendar_entry;
			$this->render(array('action' => 'edit'));
		}
	}
	
	public function update_time() {
		$id = (int)$this->params['id'];
		$CalendarEntry = $this->CalendarEntry;
		$calendar_entry = $CalendarEntry->find_by_id($id);
		if (is_null($calendar_entry)) {
			die("Calendar entry #" . htmlspecialchars($id) . " not found!");
		}
		if ($calendar_entry->user_id != $this->current_user->id) {
			die("You are not allowed to edit this calendar entry.");
		}
		if ($calendar_entry->has_started()) {
			die("Cannot edit an event that has already started.");
		}
		$calendar_entry->convert_from_database_types();
		if ($this->params['type'] == 'start') {
			$calendar_entry->starting_time['hour'] = $this->params['value'];
		} else {
			$calendar_entry->ending_time['hour'] = $this->params['value'];
		}
		if ($calendar_entry->is_valid()) {
			$calendar_entry->convert_to_database_types();
			$calendar_entry->save();
			require_once($_ENV['PHOTON_ROOT'] . "/app/helpers/application_helper.php");
			if ($this->params['type'] == 'start') {
				echo 'ok ' . human_datetime($calendar_entry->starting_date);
			} else {
				echo 'ok ' . human_datetime($calendar_entry->ending_date);
			}
			exit;
		} else {
			$this->variables->calendar_entry = $calendar_entry;
			echo 'error';
		}
	}
	
	public function update_date() {
		$id = (int)$this->params['id'];
		$CalendarEntry = $this->CalendarEntry;
		$calendar_entry = $CalendarEntry->find_by_id($id);
		if (is_null($calendar_entry)) {
			die("Calendar entry #" . htmlspecialchars($id) . " not found!");
		}
		if ($calendar_entry->user_id != $this->current_user->id) {
			die("You are not allowed to edit this calendar entry.");
		}
		if ($calendar_entry->has_started()) {
			die("Cannot edit an event that has already started.");
		}
		$calendar_entry->convert_from_database_types();
		if ($this->params['type'] == 'start') {
			$calendar_entry->starting_date = $this->params['value'];
		} else {
			$calendar_entry->ending_date = $this->params['value'];
		}
		if ($calendar_entry->is_valid()) {
			$calendar_entry->convert_to_database_types();
			$calendar_entry->save();
			require_once($_ENV['PHOTON_ROOT'] . "/app/helpers/application_helper.php");
			if ($this->params['type'] == 'start') {
				echo 'ok ' . strftime("%B %e, %Y", $calendar_entry->starting_date);
			} else {
				echo 'ok ' . strftime("%B %e, %Y", $calendar_entry->ending_date);
			}
			exit;
		} else {
			$this->variables->calendar_entry = $calendar_entry;
			echo 'error';
		}
	}
	
	public function destroy() {
		$id = (int)$this->params['id'];
		$CalendarEntry = $this->CalendarEntry;
		$calendar_entry = $CalendarEntry->find_by_id($id);
		if (is_null($calendar_entry)) {
			die("Calendar entry #" . htmlspecialchars($id) . " not found!");
		}
		if ($calendar_entry->user_id != $this->current_user->id) {
			die("You are not allowed to delete this calendar entry.");
		}
		if ($calendar_entry->has_started()) {
			die("Cannot delete an event that has already started.");
		}
		$calendar_entry->delete();
		$this->redirect_to('/calendar_entries');
	}
	
	public function participate() {
		$id = (int)$this->params['id'];
		$day = (int)$this->params['day'];
		$CalendarEntry = $this->CalendarEntry;
		$calendar_entry = $CalendarEntry->find_by_id($id);
		if (is_null($calendar_entry)) {
			die("Calendar entry #" . htmlspecialchars($id) . " not found!");
		}
		if ($calendar_entry->has_started()) {
			die("Cannot participate in an event that has already started.");
		}
		if (!$calendar_entry->may_be_viewed_by($this->current_user)) {
			die("You have no permission to view this page.");
		}
		if (!$calendar_entry->is_attended_by($this->current_user, $day)) {
			$event = new Event();
			$event->user_id = $this->current_user->id;
			$event->calendar_entry_id = $id;
			$event->date = $day;
			$event->save();
		}
		$this->redirect_to("/calendar_entries/show/$id");
	}
	
	public function unparticipate() {
		$id = (int)$this->params['id'];
		$CalendarEntry = $this->CalendarEntry;
		$calendar_entry = $CalendarEntry->find_by_id($id);
		if (is_null($calendar_entry)) {
			die("Calendar entry #" . htmlspecialchars($id) . " not found!");
		}
		if ($calendar_entry->has_started()) {
			die("Cannot participate in an event that has already started.");
		}
		if (!$calendar_entry->may_be_viewed_by($this->current_user)) {
			die("You have no permission to view this page.");
		}
		if (isset($this->params['day'])) {
			$day = (int)$this->params['day'];
			if ($calendar_entry->is_attended_by($this->current_user, $day)) {
				$event = $this->Event->find('first', array(
					'conditions' => array('user_id' => $this->current_user->id,
						'calendar_entry_id' => $id,
						'date' => $day)
				));
				if (!is_null($event)) {
					$event->delete();
				}
			}
		} else {
			$events = $this->Event->find('all', array(
				'conditions' => array('user_id' => $this->current_user->id,
					'calendar_entry_id' => $id)
			));
			foreach ($events as $event) {
				$event->delete();
			}
		}
		$this->redirect_to("/calendar_entries/show/$id");
	}
	
	protected function set_section() {
		$this->variables->section = 'events';
	}
	
	public function export_xml() {
		$calendar_entries = $this->CalendarEntry->find('all',
			array(
				'conditions' => array('ending_date > NOW() AND public'),
				'order' => 'starting_date DESC',
				'limit' => 10
			)
		);
		
		header("Content-Type: application/xml");
		$xml = new XMLWriter();
		$xml->openMemory();
		$xml->startDocument("1.0", "UTF-8");
		$xml->startElement('CALENDARFEED');
			$xml->startElement('FEEDDESCRIPTION');
				$xml->startElement('FEEDTITLE');
					$xml->startAttribute('UPDATE');
						$xml->text($calendar_entries[0]->xml_starting_time() . " " .
							$calendar_entries[0]->xml_starting_date());
					$xml->endAttribute();
					$xml->text('iVent Beta: Upcoming Public Events');
				$xml->endElement();
				$xml->startElement('TAGLINE');
					$xml->text('Calendaring Made Easy');
				$xml->endElement();
				$xml->startElement('FEEDOWNER');
					$xml->text('Hongli Lai and Ninh Bui');
				$xml->endElement();
				$xml->startElement('URL');
					$xml->text('http://www.ivent.beta/exportxml.php');
				$xml->endElement();
			$xml->endElement();
			
			foreach ($calendar_entries as $event) {
				$xml->startElement('EVENT');
					$xml->startElement('EVENTTITLE');
						$xml->text($event->title);
					$xml->endElement();
					if ($event->description !== "") {
						$xml->startElement('EVENTDESCRIPTION');
							$xml->text($event->description);
						$xml->endElement();
					}
					$xml->startElement('LOCATION');
						$xml->text($event->location);
					$xml->endElement();
					$xml->startElement('EVENTOWNER');
						$xml->text($event->get_owner()->username);
					$xml->endElement();
					$xml->startElement('DATEINFO');
						$xml->startElement('STARTDATE');
							$xml->text($event->xml_starting_date());
						$xml->endElement();
						$xml->startElement('STARTTIME');
							$xml->text($event->xml_starting_time());
						$xml->endElement();
						$xml->startElement('ENDDATE');
							$xml->text($event->xml_ending_date());
						$xml->endElement();
						$xml->startElement('ENDTIME');
							$xml->text($event->xml_ending_time());
						$xml->endElement();
					$xml->endElement();
					
					$attendees = $event->get_participants();
					if (!empty($attendees)) {
						$xml->startElement('ATTENDEES');
						foreach($attendees as $attendee) {
							$xml->startElement('ATTENDEE');
								$xml->text($attendee->username);
							$xml->endElement();
						}
						$xml->endElement();
					}
					/*
					$xml->startElement('');
						$xml->text();
					$xml->endElement();
					*/
				$xml->endElement();
			}
		$xml->endElement();
		$xml->endDocument();
		echo $xml->flush();
		exit;
	}
}

?>

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