<?php
elgg_load_library('elgg:event_calendar');
$event_guid = get_input('event_guid',0);
$user_guid = get_input('user_guid',elgg_get_logged_in_user_guid());
$other = get_input('other','');
if ($other) {
	$remove_response = elgg_echo('event_calendar:added_to_the_calendar');
	$add_response = elgg_echo('event_calendar:removed_from_the_calendar');
	$add_error = elgg_echo('event_calendar:add_to_the_calendar_error');
} else {
	$remove_response = elgg_echo('event_calendar:remove_from_my_calendar_response');
	$add_response = elgg_echo('event_calendar:add_to_my_calendar_response');
	$add_error = elgg_echo('event_calendar:add_to_my_calendar_error');
}

if (event_calendar_has_personal_event($event_guid,$user_guid)) {
	$button_text = elgg_echo('event_calendar:add_to_the_calendar');
	event_calendar_remove_personal_event($event_guid,$user_guid);
	$response = array('success'=>TRUE, 'message' => $remove_response, 'button_text'=>$button_text);
} else {
	if (event_calendar_add_personal_event($event_guid,$user_guid)) {
		$event_calendar_add_users_notify = elgg_get_plugin_setting('add_users_notify', 'event_calendar');
		if ($event_calendar_add_users_notify == 'yes') {
			$subject = elgg_echo('event_calendar:add_users_notify:subject');
			$user = get_user($user_guid);
			$event = get_entity($event_guid);
			$site_guid = elgg_get_site_entity()->guid;
			$message = elgg_echo('event_calendar:add_users_notify:body',array($user->name,$event->title,$event->getURL()));
			notify_user($user_guid, $site_guid, $subject, $message, NULL, 'email');
		}
		$button_text = elgg_echo('event_calendar:remove_from_the_calendar_button');
		$response = array('success'=>TRUE, 'message' => $add_response, 'button_text'=>$button_text);
	} else {
		$response = array('success'=>FALSE, 'message' =>$add_error);
	}
}

echo json_encode($response);

exit;