<?php
function removeBOM($data) {
    if (0 === strpos(bin2hex($data), 'efbbbf')) {
       return substr($data, 3);
    }
    return $data;
}

function getAllImagesProduct($productId,$IBlockId){
    $cdnImages = array();
    $localImages = array();
    $localImageMain = array();
    $cdnImage = array();
    $arSelect = Array("ID", "NAME", "DETAIL_PICTURE", "PROPERTY_MORE_PHOTO", "PROPERTY_CDN_MAIN_IMAGE", "PROPERTY_CDN_IMAGES","PROPERTY_KARTINKI_V_CDN");
    $arFilter = Array("IBLOCK_ID"=>IntVal($IBlockId), "ID"=>$productId, "ACTIVE"=>"Y");
    $res = CIBlockElement::GetList(Array(), $arFilter, false, false, $arSelect);
    while($ob = $res->GetNextElement()){
        $arFields = $ob->GetFields();
        $cdnImageMainUrl = $arFields["PROPERTY_CDN_MAIN_IMAGE_VALUE"];
        $cdnImageUrl = $arFields["PROPERTY_CDN_IMAGES_VALUE"];
        $arFields['PROPERTY_KARTINKI_V_CDN_VALUE'] = str_replace('&quot;', '"', $arFields['PROPERTY_KARTINKI_V_CDN_VALUE']);
        $cdnImageFrom1C = json_decode($arFields["PROPERTY_KARTINKI_V_CDN_VALUE"],1);




        $localImageMainSrc = CFile::GetPath($arFields["DETAIL_PICTURE"]);
        if(!in_array($cdnImageMainUrl,$localImageMain) && $cdnImageMainUrl){
            $cdnImage[] = $cdnImageMainUrl;
        }
        if(!in_array($localImageMainSrc,$localImageMain) && $localImageMainSrc){
            $localImageMain[] = $localImageMainSrc;
        }
        if(!in_array($cdnImageUrl,$cdnImages) && $cdnImageUrl){
            $cdnImages[] = $cdnImageUrl;
        }
        $localImageSrc =  CFile::GetPath($arFields["PROPERTY_MORE_PHOTO_VALUE"]);
        if(!in_array($localImageSrc,$localImages) && $localImageSrc){
            $localImages[] = $localImageSrc;
        }
    }
    //картинки из 1с
    //Отделяем главную картинку от остальных(картинки загруженные из 1с)

        foreach ($cdnImageFrom1C as $key => $value){
            if($value['main']) {
                $cdnImageMainUrl1C = $value['URL'];
            }
            else {
                $cdnImageUrl1C[]=$value['URL'];
            }
        }

        if(isset($cdnImageMainUrl1C) && isset($cdnImageUrl1C)){
            array_unshift($cdnImageUrl1C,$cdnImageMainUrl1C);
        }


        if(empty($cdnImage) && !empty($cdnImageMainUrl1C)){
            $cdnImage[] = $cdnImageMainUrl1C;
        }

        if(empty($cdnImages) && !empty($cdnImageUrl1C)){
            $cdnImages = $cdnImageUrl1C;
        }
    //

    $noImage = array("/local/templates/main/i/no_photo.png");
    if(count($cdnImages)){
        return $cdnImages;
    }else{
        if(count($cdnImage)) {
            return $cdnImage;
        } else {
            if(count($localImages)){
                $localImagesMain =array_merge($localImageMain, $localImages);
                return $localImagesMain;
            }else{
                if(count($localImageMain)){
                    return $localImageMain;
                } else {
                    return $noImage;
                }
            }
        }
    }
}

function getMainImageProduct($productId,$IBlockId){
    $arSelect = Array("ID", "NAME", "DETAIL_PICTURE", "PROPERTY_CDN_MAIN_IMAGE", "PROPERTY_KARTINKI_V_CDN");
    $arFilter = Array("IBLOCK_ID"=>IntVal($IBlockId), "ID"=>$productId, "ACTIVE"=>"Y");
    $res = CIBlockElement::GetList(Array(), $arFilter, false, false, $arSelect);
    while($ob = $res->GetNextElement()){
        $arFields = $ob->GetFields();
        $cdnImage = $arFields["PROPERTY_CDN_MAIN_IMAGE_VALUE"];
        $localImage = CFile::GetPath($arFields["DETAIL_PICTURE"]);
        $arFields['PROPERTY_KARTINKI_V_CDN_VALUE'] = str_replace('&quot;', '"', $arFields['PROPERTY_KARTINKI_V_CDN_VALUE']);
        $cdnImageFrom1C = json_decode($arFields["PROPERTY_KARTINKI_V_CDN_VALUE"],1);

        foreach ($cdnImageFrom1C as $key => $value){
            if($value['main']) {
                $cdnImageMainUrl1C = $value['URL'];
                break;
            }
        }

        if(isset($cdnImageMainUrl1C)){
            $cdnImage = $cdnImageMainUrl1C;
        }
    }
    $noImageUrl = "/local/templates/main/i/no_photo_small.png";
    if($cdnImage){
        return $cdnImage;
    }else{
        if($localImage){
            return $localImage;
        }else{
            return $noImageUrl;
        }
    }
}