<?php

namespace  Bx\Discount;

use Bitrix\Main\Loader;
use CSite;

class Tools
{
    public static function isSaleDiscountEditPage()
    {
        $isAdminSection = defined('ADMIN_SECTION') && ADMIN_SECTION;

        if(!$isAdminSection) {
            return false;
        }

        return CSite::InDir('/bitrix/admin/sale_discount_edit.php')
//            || CSite::InDir('/bitrix/admin/sale_discount.php') // деактивация
            || CSite::InDir('/bitrix/admin/cat_discount_edit.php')
            || CSite::InDir('/bitrix/admin/cat_discount.php');
    }

    public static function isValidRequestData()
    {
        return isset($_POST['PRODUCT_TYPE']);
    }

    public static function isEnable()
    {
        if(defined('SALE_DISCOUNT_MIGRATE_MODE') && SALE_DISCOUNT_MIGRATE_MODE){
            return false;
        }
        return discountApp()->config('ENABLE');
    }

    public static function getProductTypeArray($discountID)
    {
        $arProductType = [];
        $arProductType['PRODUCT_TYPE'] = '0';
        $arProductType['MIN_COUNT_PROD'] = 0;

        if(empty($discountID) || ($discountID < 0)){
            return $arProductType;
        }

        $depsLoaded = Loader::includeModule('iblock');

        if(!$depsLoaded) {
            return $arProductType;
        }

        $iBlockId = discountApp()->config('DISCOUNT_TYPE_IBLOCK_ID');

        if(!$iBlockId){
            return $arProductType;
        }

        $res_element = \CIBlockElement::GetList(
            ['SORT' => 'ASC'],
            ['IBLOCK_ID' => $iBlockId, '=NAME' => $discountID],
            false,
            false,
            ['ID', 'NAME', 'PROPERTY_TYPE', 'PROPERTY_MIN_COUNT_PROD']
        );
        $res_element_count = $res_element->SelectedRowsCount();
        if($res_element_count){
            $obElement = $res_element->GetNext(true, false);
            $arProductType['PRODUCT_TYPE'] = (string)$obElement['PROPERTY_TYPE_VALUE'];
            $arProductType['MIN_COUNT_PROD'] = (int)$obElement['PROPERTY_MIN_COUNT_PROD_VALUE'];
        }
        return $arProductType;
    }

    public static function setTicketValueFromDiscount($elementId)
    {
        $includeModule = Loader::includeModule('catalog')
            && Loader::includeModule('iblock');
        if(!$includeModule) {
            return false;
        }

        $iBlockId = discountApp()->config('CATALOG_IBLOCK_ID');
        $ticketPropId = discountApp()->config('TICKET_PROP_ID');
        $map = discountApp()->config('MAP')->toArray();

        $rawDiscountList = \CCatalogDiscount::GetDiscount(
            $elementId,
            $iBlockId,
            [], //CATALOG_GROUP_ID
            [2],
            'N', // renewal
            's1',
            false
        );
        $discountList = [];
        foreach ($rawDiscountList as $i => $discount){
            $discountId = $discount['ID'];
            $arProductType = static::getProductTypeArray($discountId);
            $discountList[$discountId]['PAN_SETTINGS'] = $arProductType;
        }

        // pre($discountList, 0);

        $iterator = \CIBlockElement::GetPropertyValues(
            $iBlockId,
            ['ID' => $elementId],
            false,
            ['ID' => $ticketPropId]
        );
        $ticketPropValueList = [];
        $arTicketPropValue = $iterator->Fetch();
        if($arTicketPropValue && $arTicketPropValue[$ticketPropId]){
            $ticketPropValueList = $arTicketPropValue[$ticketPropId];
        }
        sort($ticketPropValueList);
        $newTicketValue = array_diff($ticketPropValueList, $map);

        foreach ($discountList as $discountId => $discount){
            $ticketType = $discount['PAN_SETTINGS']['PRODUCT_TYPE'];
            if($ticketType && $map[$ticketType]){
                $newTicketValue[] = $map[$ticketType];
            }
        }
        sort($newTicketValue);

        if($newTicketValue != $ticketPropValueList) {
            \CIBlockElement::SetPropertyValuesEx($elementId, $iBlockId, [
                $ticketPropId => $newTicketValue?:false
            ]);

            if(discountApp()->config('UPDATE_ELEMENT_INDEX')){
                \Bitrix\Iblock\PropertyIndex\Manager::updateElementIndex($iBlockId, $elementId);
            }
        }
        return true;
    }

    public static function getElementList($lastId = 0)
    {
        $includeModule =  Loader::includeModule('iblock');
        if(!$includeModule) {
            return [];
        }

        $iBlockId = discountApp()->config('CATALOG_IBLOCK_ID');

        $rs = \CIBlockElement::GetList(
            ['ID' => 'ASC'],
            [
                'IBLOCK_ID' => $iBlockId,
                '>ID' => $lastId,
                'ACTIVE' => 'Y',
                'GLOBAL_ACTIVE' => 'Y'
            ],
            false,
            [
                'nTopCount' => discountApp()->config('PAGE_SIZE', 50),
            ],
            ['ID', 'IBLOCK_ID']
        );
        $elements = [];
        while($ar = $rs->Fetch()){
            $elements[$ar['ID']] = $ar['ID'];
        }
        return $elements;
    }

    /**
     * Удаление записей которые ссылаются на отсутствующие элементы
     *
     * @return void
     */
    public static function removeOldTypeValuesFromCatalogDiscount()
    {
        $includeModule = Loader::includeModule('catalog')
            && Loader::includeModule('iblock');
        if(!$includeModule) {
            return;
        }

        $typeIBlockId = discountApp()->config('DISCOUNT_TYPE_IBLOCK_ID');

        $typeAFactory = app()->factory()->iBlock()->getEntityById($typeIBlockId);
        $typeCollection = $typeAFactory->getElementFactory()->cache([])->getCollection([], [], ['ID', 'NAME']);


        //            \Bitrix\Sale\Internals\DiscountTable::getList()
        $result = \CCatalogDiscount::GetList();
        $list = [];
        while($ar = $result->Fetch()){
            /**
             * Как пример не брать! Тут скидки дикие!
             */
            $list[$ar['ID']] = $ar;
        }

        $removeList = [];
        foreach ($typeCollection as $entity){
            $discountId = $entity->getName();
            if(!$list[$discountId]){
                /**
                 * remove iblock element - discount type
                 */
                $removeList[] = $entity->getId();
                $r = \CIBlockElement::Delete($entity->getId());
                if(!$r){
                    global $APPLICATION;
                    pre("ERROR REMOVE {$entity->getId()}:" . $APPLICATION->LAST_ERROR?$APPLICATION->LAST_ERROR->GetString():'last_error_error');
                }
            }
        }

        $removeCount = count($removeList);
        pre("remove {$removeCount} / {$typeCollection->count()} = " . ($typeCollection->count() - $removeCount));
        pre('REMOVE ID LIST [TYPES]');
        pre($removeList);

        pre('DISCOUNT IDS ' . count($list));
        pre(array_keys($list));
    }
}