<?php

namespace Bitrix\Landing\Update\Landing;

use Bitrix\Landing\Internals\LandingTable;
use Bitrix\Landing\Rights;
use Bitrix\Landing\Folder;
use Bitrix\Landing\Debug;
use Bitrix\Landing\Manager;
use Bitrix\Main\Update\Stepper;

//\Bitrix\Main\Update\Stepper::bindClass('Bitrix\Landing\Update\Landing\FolderNew', 'landing', 0);

class FolderNew extends Stepper
{
	protected static $moduleId = 'landing';

	/**
	 * One step of converter.
	 * @param array &$result Result array.
	 * @param int|null $siteId Site id for force update specific site.
	 * @return bool
	 */
	public function execute(array &$result, ?int $siteId = null): bool
	{
		Rights::setGlobalOff();
		$finished = true;

		$globalFilter = [
			'=FOLDER' => 'Y',
			//'=DELETED' => ['Y', 'N'],
			//'=SITE.DELETED' => ['Y', 'N']
		];

		if ($siteId)
		{
			$globalFilter['SITE_ID'] = $siteId;
		}

		// gets common quantity
		$res = LandingTable::getList([
			'select' => [
				new \Bitrix\Main\Entity\ExpressionField(
					'CNT', 'COUNT(*)'
				),
			],
			'filter' => $globalFilter,
		]);
		if ($row = $res->fetch())
		{
			$result['count'] = (int)$row['CNT'];
		}

		if ($result['count'] > 0)
		{
			// gets group for update
			$res = LandingTable::getList([
				'select' => [
					'ID', 'TITLE', 'CODE', 'ACTIVE', 'DELETED', 'SITE_ID',
				],
				'filter' => $globalFilter,
				'order' => [
					'ID' => 'ASC',
				],
			]);
			while ($page = $res->fetch())
			{
				$folderId = null;
				// create new folder and update folder to page
				$resFolder = Folder::add([
					'SITE_ID' => $page['SITE_ID'],
					'TITLE' => $page['TITLE'],
					'CODE' => $page['CODE'],
					'ACTIVE' => $page['ACTIVE'],
					'DELETED' => $page['DELETED'],
				]);
				if ($resFolder->isSuccess())
				{
					$folderId = $resFolder->getId();
				}
				else
				{
					foreach ($resFolder->getErrors() as $error)
					{
						if ($error->getCode() === 'FOLDER_IS_NOT_UNIQUE')
						{
							$resFolder = Folder::getList([
								'select' => [
									'ID',
								],
								'filter' => [
									'SITE_ID' => $page['SITE_ID'],
									'PARENT_ID' => null,
									'=CODE' => $page['CODE'],
								],
							]);
							if ($rowFolder = $resFolder->fetch())
							{
								$folderId = $rowFolder['ID'];
								break;
							}
						}
					}
				}

				if ($folderId)
				{
					Folder::update($folderId, [
						'INDEX_ID' => $page['ID'],
					]);
					LandingTable::update($page['ID'], [
						'FOLDER' => 'N',
						'FOLDER_ID' => $folderId,
					]);
					Debug::log('FU:LandingTable::update', var_export([
						'ID' => $page['ID'],
						'FOLDER' => 'N',
						'FOLDER_ID' => $folderId,
					], true));
					// fetch old folder's pages and move it to the new folder
					$resPage = LandingTable::getList([
						'select' => [
							'ID', 'FOLDER_ID',
						],
						'filter' => [
							'FOLDER_ID' => $page['ID'],
							//'=DELETED' => ['Y', 'N'],
							//'=SITE.DELETED' => ['Y', 'N']
						],
					]);
					while ($rowPage = $resPage->fetch())
					{
						LandingTable::update($rowPage['ID'], [
							'FOLDER_ID' => $folderId,
						]);
						Debug::log('FU:LandingTable::update', var_export([
							'ID' => $rowPage['ID'],
							'FOLDER_ID_OLD' => $rowPage['FOLDER_ID'],
							'FOLDER_ID' => $folderId,
						], true));
					}
				}

				$finished = false;
			}
		}

		if ($finished && !$siteId)
		{
			Manager::setOption('landing_new', 'Y');
		}

		Rights::setGlobalOn();

		return !$finished;
	}
}