<?if(!defined("B_PROLOG_INCLUDED") || B_PROLOG_INCLUDED!==true)die();

if (!isset($arParams["CALENDAR_TYPE"]))
{
	$arParams["CALENDAR_TYPE"] = 'user';
}

if(!CModule::IncludeModule("calendar") || !class_exists("CCalendar"))
{
	ShowError(GetMessage("EC_CALENDAR_MODULE_NOT_INSTALLED"));
	return;
}
$arParams['EVENT_ID'] = (int)$arParams['EVENT_ID'];
$arResult['EVENT'] = false;
$arParams['CUR_USER'] = $USER->GetId();
$events = CCalendarEvent::GetList(
	array(
		'arFilter' => array(
			"ID" => $arParams['EVENT_ID'],
			"DELETED" => false
		),
		'parseRecursion' => false,
		'fetchAttendees' => true,
		'checkPermissions' => true,
		'setDefaultLimit' => false
	)
);

if ($events && is_array($events[0]))
{
	$arResult['EVENT'] = $events[0];
}

if (!$arResult['EVENT'])
{
	$events = CCalendarEvent::GetList(
		array(
			'arFilter' => array(
				"ID" => $arParams['EVENT_ID'],
				"DELETED" => false
			),
			'parseRecursion' => false,
			'checkPermissions' => false,
			'setDefaultLimit' => false
		)
	);

	// Clean damaged event from livefeed
	if (!$events || !is_array($events[0]))
	{
		CCalendarLiveFeed::OnDeleteCalendarEventEntry($arParams['EVENT_ID']);
	}

	return false;
}

if (!is_array($arParams['~LIVEFEED_ENTRY_PARAMS']) || !array_key_exists('COMMENT_XML_ID', $arParams['~LIVEFEED_ENTRY_PARAMS']))
{
	$arResult['ID'] = 'livefeed'.$arParams['EVENT_ID'];
}
else
{
	$arResult['ID'] = 'livefeed_'.$arParams['~LIVEFEED_ENTRY_PARAMS']['COMMENT_XML_ID'];
	$arResult['ID'] = mb_strtolower(preg_replace('/[^\d|\w_\-]/', '', $arResult['ID']));

	// Instance date for recurcive events, which were commented before
	$instanceDate = CCalendarEvent::ExtractDateFromCommentXmlId($arParams['~LIVEFEED_ENTRY_PARAMS']['COMMENT_XML_ID']);
	if ($instanceDate && CCalendarEvent::CheckRecurcion($arResult['EVENT']))
	{
		$instanceDateTs = CCalendar::Timestamp($instanceDate);
		$currentFromTs = CCalendar::Timestamp($arResult['EVENT']['DATE_FROM']);
		$length = $arResult['EVENT']['DT_LENGTH'];

		$arResult['EVENT']['~DATE_FROM'] = $arResult['EVENT']['DATE_FROM'];
		$arResult['EVENT']['~DATE_TO'] = $arResult['EVENT']['DATE_TO'];

		if ($arResult['EVENT']['DT_SKIP_TIME'] === 'Y')
		{
			$arResult['EVENT']['DATE_FROM'] = CCalendar::Date($instanceDateTs, false);
			$arResult['EVENT']['DATE_TO'] = CCalendar::Date($instanceDateTs + $length - CCalendar::GetDayLen(), false);
		}
		else
		{
			$newFromTs = mktime(date("H", $currentFromTs), date("i", $currentFromTs), 0, date("m", $instanceDateTs), date("d", $instanceDateTs), date("Y", $instanceDateTs));
			$arResult['EVENT']['DATE_FROM'] = CCalendar::Date($newFromTs);
			$arResult['EVENT']['DATE_TO'] = CCalendar::Date($newFromTs + $length);
		}
	}
}

if ($arResult['EVENT']['LOCATION'] !== '')
{
	$arResult['EVENT']['LOCATION'] = CCalendar::GetTextLocation($arResult['EVENT']["LOCATION"]);
}

global $USER_FIELD_MANAGER;
$UF = CCalendarEvent::GetEventUserFields($arResult['EVENT']);
$arResult['UF_CRM_CAL_EVENT'] = $UF['UF_CRM_CAL_EVENT'];
if (empty($arResult['UF_CRM_CAL_EVENT']['VALUE']))
{
	$arResult['UF_CRM_CAL_EVENT'] = false;
}

$arResult['UF_WEBDAV_CAL_EVENT'] = $UF['UF_WEBDAV_CAL_EVENT'];
if (empty($arResult['UF_WEBDAV_CAL_EVENT']['VALUE']))
{
	$arResult['UF_WEBDAV_CAL_EVENT'] = false;
}

$arParams['ATTENDEES_SHOWN_COUNT'] = 4;
$arParams['ATTENDEES_SHOWN_COUNT_MAX'] = 8;
$arParams['AVATAR_SIZE'] = 30;

if (!isset($arParams['EVENT_TEMPLATE_URL']))
{
	$editUrl = CCalendar::GetPath('user', '#USER_ID#');
	$arParams['EVENT_TEMPLATE_URL'] = $editUrl.((mb_strpos($editUrl, "?") === false) ? '?' : '&').'EVENT_ID=#EVENT_ID#';
}

$uri = new \Bitrix\Main\Web\Uri($arParams['EVENT_TEMPLATE_URL']);
if ($uri->getAuthority())
{
	$arParams['EVENT_TEMPLATE_URL'] = explode($uri->getAuthority(), $arParams['EVENT_TEMPLATE_URL'])[1];
}

$fromDateTs = CCalendar::Timestamp($arResult['EVENT']['DATE_FROM']);
if ($arResult['EVENT']['DT_SKIP_TIME'] !== "Y")
{
	$fromDateTs -= $arResult['EVENT']['~USER_OFFSET_FROM'];
}

$arResult['EVENT']['FROM_WEEK_DAY'] = FormatDate('D', $fromDateTs);
$arResult['EVENT']['FROM_MONTH_DAY'] = FormatDate('j', $fromDateTs);
$arResult['ATTENDEES_INDEX'] = [];
$arResult['EVENT']['ACCEPTED_ATTENDEES'] = [];
$arResult['EVENT']['DECLINED_ATTENDEES'] = [];

$arResult['ATTENDEES_INDEX'] = [];
$arResult['EVENT']['ACCEPTED_ATTENDEES'] = [];
$arResult['EVENT']['DECLINED_ATTENDEES'] = [];

if (
	$arResult['EVENT']['IS_MEETING']
	&& isset($arResult['EVENT']['ATTENDEE_LIST'])
	&& is_array($arResult['EVENT']['ATTENDEE_LIST'])
)
{
	$userIndex = CCalendarEvent::getUserIndex();
	foreach ($arResult['EVENT']['ATTENDEE_LIST'] as $attendee)
	{
		if (isset($userIndex[$attendee["id"]]))
		{
			$arResult['ATTENDEES_INDEX'][$attendee["id"]] = [
				"STATUS" => $attendee['status']
			];

			if ($attendee['status'] === "Y" || $attendee['status'] === "H")
			{
				$arResult['EVENT']['ACCEPTED_ATTENDEES'][] = $userIndex[$attendee["id"]];
			}
			elseif($attendee['status'] === "N")
			{
				$arResult['EVENT']['DECLINED_ATTENDEES'][] = $userIndex[$attendee["id"]];
			}
		}
	}
}

if ($arParams['MOBILE'] === 'Y')
{
	$this->setSiteTemplateId('mobile_app');
	$arParams['ACTION_URL'] = SITE_DIR.'mobile/index.php?mobile_action=calendar_livefeed';
}
else
{
	$arParams['ACTION_URL'] = $this->getPath().'/action.php';
}

ob_start();
$this->IncludeComponentTemplate();
$html_message = ob_get_clean();

$footStr1 = '<!--#BX_FEED_EVENT_FOOTER_MESSAGE#-->';
$footStr2 = '<!--#BX_FEED_EVENT_FOOTER_MESSAGE_END#-->';
$pos1 = mb_strpos($html_message, $footStr1);
$pos2 = mb_strpos($html_message, $footStr2);

if ($footStr1 !== false)
{
	$message = mb_substr($html_message, 0, $pos1);
}
else
{
	$message = $html_message;
}
$footer_message = mb_substr($html_message, $pos1 + mb_strlen($footStr1), $pos2 - $pos1 - mb_strlen($footStr1));

return array(
	'MESSAGE' => htmlspecialcharsex($message),
	'FOOTER_MESSAGE' => $footer_message,
	'CACHED_JS_PATH' => $this->getTemplate()->GetFolder().'/script.js' // used for attach js inside cached Live feed
);
?>