<?php
require_once $_SERVER['DOCUMENT_ROOT'] . '/bitrix/modules/main/include/prolog_admin_before.php';
require_once $_SERVER['DOCUMENT_ROOT'] . '/bitrix/modules/workflow/prolog.php';
/** @var CMain $APPLICATION */
/** @var CDatabase $DB */
$WORKFLOW_RIGHT = $APPLICATION->GetGroupRight('workflow');
if ($WORKFLOW_RIGHT == 'D')
{
	$APPLICATION->AuthForm(GetMessage('ACCESS_DENIED'));
}

/* @var $request \Bitrix\Main\HttpRequest */
$request = \Bitrix\Main\Context::getCurrent()->getRequest();

require_once $_SERVER['DOCUMENT_ROOT'] . '/bitrix/modules/workflow/include.php';
IncludeModuleLangFile(__FILE__);

$ID = intval($request['ID']);
/***************************************************************************
			GET | POST handlers
****************************************************************************/
// there is document ID
if ($ID > 0 && check_bitrix_sessid())
{
	// check if document exists in database
	$z = $DB->Query('SELECT ID FROM b_workflow_document WHERE ID = ' . intval($ID));
	if (!($zr = $z->Fetch()))
	{
		require_once $_SERVER['DOCUMENT_ROOT'] . '/bitrix/modules/main/include/prolog_admin_after.php';

		$aMenu = [
			[
				'ICON' => 'btn_list',
				'TEXT' => GetMessage('FLOW_RECORDS_LIST'),
				'LINK' => 'workflow_list.php?lang=' . LANGUAGE_ID,
				'TITLE' => GetMessage('FLOW_RECORDS_LIST'),
			],
		];
		$context = new CAdminContextMenu($aMenu);
		$context->Show();

		CAdminMessage::ShowMessage(GetMessage('FLOW_DOCUMENT_NOT_FOUND'));

		require_once $_SERVER['DOCUMENT_ROOT'] . '/bitrix/modules/main/include/epilog_admin.php';
		die;
	}
	else
	{
		$filename = CWorkflow::GetUniquePreview($ID);
		// save preview file
		$z = CWorkflow::GetByID($ID);
		$zr = $z->Fetch();
		$prolog = $zr['PROLOG'];
		if ($prolog <> '')
		{
			$title = $zr['TITLE'];
			$prolog = SetPrologTitle($prolog, $title);
		}
		$content = ($zr['BODY_TYPE'] == 'text') ? TxtToHTML($zr['BODY']) : $zr['BODY'];
		$epilog = $zr['EPILOG'];
		$filesrc = $prolog . PathToWF($content, $ID) . $epilog;
		SavePreviewContent($_SERVER['DOCUMENT_ROOT'] . $filename, $filesrc);
		// store file to database
		$arFields = [
			'DOCUMENT_ID' => $ID,
			'TIMESTAMP_X' => $DB->GetNowFunction(),
			'FILENAME' => "'" . $DB->ForSql($filename, 255) . "'",
		];
		$DB->Insert('b_workflow_preview', $arFields);
		// redirect to preview saved
		if (file_exists($_SERVER['DOCUMENT_ROOT'] . $filename))
		{
			LocalRedirect($filename);
		}
		else
		{
			LocalRedirect('/bitrix/admin/workflow_list.php?lang=' . LANG);
		}
	}
}