<?php

namespace Ixrs\Catalog\Support;

class ElementList
{

    public static function getGlobalFilter($iBlockId, $globalFilter)
    {
        $pFilter = [];
        $af = app()->factory()->iBlock()->getEntityById($iBlockId);
        $iBlockFactory = app()->factory()->main()->getIBlockFactory();
        $iBlockEntity = $iBlockFactory->getEntityById($iBlockId);

        $propertyFactory = $af->getPropertyFactory();
        if($iBlockEntity->getCatalogEntity()->hasOffers()){
            $offerAf = app()->factory()->iBlock()->getEntityById($iBlockEntity->getCatalogEntity()->getOfferBlockId());
            $offerPropertyFactory = $offerAf->getPropertyFactory();

            foreach ($globalFilter as $key => $values){
                $res = \Ixrs\Catalog\Support\IBlock::getOperationFilter($key);
                // $res = \CIBlock::MkOperationFilter($key);

                if(!$res) {
                    continue;
                }

                $propertyId = $res['ID'];
                $propertyEntity = $propertyFactory->getEntityById($propertyId);
                if(!$propertyEntity){
                    continue;
                }
                $offerPropertyEntity = $offerPropertyFactory->getCollection([
                    '=CODE' => $propertyEntity->getCode(),
                    '=XML_ID' => $propertyEntity->getXmlId(),
                    '=PROPERTY_TYPE' => $propertyEntity->getBaseType(),
                    '=USER_TYPE' => $propertyEntity->getUserType(),
                    '=ACTIVE' => 'Y',
                ])->first();

                if(!$offerPropertyEntity){
                    continue;
                }

                /**
                 * @var array $values
                 */
                $oKey = $res['PREFIX'] . 'PROPERTY_' . $offerPropertyEntity->getId();
                $values = (array)$values;

                $pFilter[$propertyId]['E'] = [];
                $pFilter[$propertyId]['O'] = [];

                foreach ($values as $value){
                    $oValue = $value;
                    if($propertyEntity->getBaseType() === 'L' && $propertyEntity->getValueFactory()){
                        $pve = $propertyEntity->getValueFactory()->getEntityById($oValue);
                        $x = $pve->get('XML_ID');
                        if($x){
                            $opve = $offerPropertyEntity->getValueFactory()->getCollection(['XML_ID' => $x])->first();
                            $oValue = $opve?->getId();
                        }
                        else {
                            $oValue = null;
                        }
                    }
                    if($oValue){
                        if(isset($globalFilter[$key])){
                            $globalFilter[$key] = collect($globalFilter[$key])->deleteValues([$value])->toArray();
                        }
                        $pFilter[$propertyId]['E'][$key][] = $value;
                        $pFilter[$propertyId]['O'][$oKey][] = $oValue;
                        if(isset($globalFilter['OFFERS'][$oKey])){
                            $globalFilter['OFFERS'][$oKey] =
                                collect($globalFilter['OFFERS'][$oKey])->deleteValues([$oValue])->toArray();
                        }
                    }
                }

                //if($pFilter[$propertyId]['E'][$key] || $pFilter[$propertyId]['O'][$oKey]){
                    if($globalFilter[$key]){
                        $pFilter[$propertyId]['E'][$key] = array_merge((array)$pFilter[$propertyId]['E'][$key], $globalFilter[$key]);
                        unset($globalFilter[$key]);
                    }
                    if($globalFilter['OFFERS'][$oKey]){
                        $pFilter[$propertyId]['O'][$oKey] = array_merge((array)$pFilter[$propertyId]['O'][$oKey], $globalFilter['OFFERS'][$oKey]);
                        unset($globalFilter['OFFERS'][$oKey]);
                    }
                //}

                if(!$globalFilter[$key]){
                    unset($globalFilter[$key]);
                }
                if(!$globalFilter['OFFERS'][$oKey]){
                    unset($globalFilter['OFFERS'][$oKey]);
                }
            }
        }

        /** inject */
        $oFilter = [];
        if($pFilter){
            foreach ($pFilter as $ePId => $item) {
                $data = [];

                foreach ($item['E'] as $fKey => $values) {
                    foreach ($values as $value){
                        $data[] = [$fKey => $value];
                    }
                }
                foreach ($item['O'] as $fKey => $values) {
                    $oFilter[$fKey] = $values;
                    foreach ($values as $value){
                        $data[] = ['=ID' => \CIBlockElement::SubQuery(
                            'PROPERTY_'.$iBlockEntity->getCatalogEntity()->getSkuPropertyId(),
                            array_merge([
                                'IBLOCK_ID' => $iBlockEntity->getCatalogEntity()->getOfferBlockId(),
                                'ACTIVE_DATE' => 'Y',
                                'ACTIVE' => 'Y',
                            ], [$fKey => $value])
                        )];
                    }
                }

                if($data){
                    $globalFilter[] = array_merge([
                        'LOGIC' => 'OR',
                    ], $data);
                }
            }

            //if(!is_array($this->storage['SUB_FILTER'])){
            //    $this->storage['SUB_FILTER'] = [];
            //}
            //foreach ($oFilter as $fKey => $values) {
            //    if(isset($this->storage['SUB_FILTER'][$fKey])){
            //        $this->storage['SUB_FILTER'][$fKey] =
            //            collect((array)$this->storage['SUB_FILTER'][$fKey])->merge($values)->unique()->toArray();
            //    }
            //    else {
            //        $this->storage['SUB_FILTER'][$fKey] = $values;
            //    }
            //}
        }
        return $globalFilter;
    }
}