<?php

namespace Hura8\Components\Product\Model;

use Hura8\Interfaces\iEntityModel;
use Hura8\System\Config;
use Hura8\System\Model\aEntityBaseModel;
use Hura8\Interfaces\EntityType;
use Hura8\System\Security\DataClean;
use Hura8\System\Security\DataType;


class ProductModel extends aEntityBaseModel implements iEntityModel
{

    static $url_module      = "product";
    static $url_view        = "detail";
    static $url_type        = "product:detail";

    protected $tb_product_per_category  = 'tb_product_per_category';
    protected $tb_collection_product    = "tb_collection_product";
    protected $tb_product_info          = 'tb_product_info';
    protected $tb_product_hot           = "tb_product_hot";

    protected $richtext_fields = [
        //'special_offer',
    ];

    public function __construct() {
        parent::__construct(
            EntityType::PRODUCT,
            "",
            new ProductSearchModel(),
            $this->richtext_fields
        );
    }


    protected function extendedFilterOptions() : array
    {
        return [
            "price"             => array('max' => 0, 'min'=> 0),
            "brand"             => array(), // array(1,2,3,)
            "collection"        => array(), // array(1,2,3,)
            "supplier"          => array(), // array(1,2,3,)
            "rating"            => array(), // array(1,2,3,)
            "category"          => array(), // array(1,2,3,)
            "status"            => array(),  // array(1,2,3,)
            "hotType"           => array(),// array(saleoff | not | new)
            "attribute"         => array(), // array(1,2,3,)
            "promotion"         => "",
            "other_filter"      => array(), // array(in-stock, has-promotion etc...)
            "spec_group_id"       => array(), // array(1,2,3,)
        ];
    }


    public function getProductInfoBySKU(string $sku) {
        $query = $this->db->runQuery(
            "SELECT * FROM `".$this->tb_entity."` basic, `".$this->tb_product_info."` info 
                    WHERE basic.`id` = info.`id` AND basic.sku = ? 
                    LIMIT 1 ",
            ['d'], [$sku]
        );

        if( $item_info = $this->db->fetchAssoc($query)){
            return $item_info;
        }

        return false;
    }


    public function getFullInfo($id) {
        $query = $this->db->runQuery(
            "SELECT * FROM `".$this->tb_entity."` basic, `".$this->tb_product_info."` info 
                    WHERE basic.`id` = info.`id` AND basic.id = ? 
                    LIMIT 1 ",
            ['d'], [$id]
        );

        if( $item_info = $this->db->fetchAssoc($query)){
            return $item_info;
        }

        return null;
    }


    public function getProductCategoryList($pro_id) {
        $query = $this->db->runQuery(
            "SELECT `category_id` FROM ".$this->tb_product_per_category." WHERE `item_id` = ? ",
            ['d'], [ $pro_id ]
        ) ;

        $pro_cat = [];
        foreach ( $this->db->fetchAll($query) as $rs ) {
            $pro_cat[] = $rs['category_id'];
        }

        return $pro_cat;
    }


    protected function _buildQueryConditionExtend(array $filter_condition) : ?array
    {
        $where_query = [];
        $bind_types = [];
        $bind_values = [];

        //-------------------

        //other filters
        if( array_key_exists("other_filter", $filter_condition) && sizeof($filter_condition["other_filter"])) {
            foreach ($filter_condition["other_filter"] as $_filter) {
                switch ($_filter) {
                    case "in-stock";
                        $where_query[] = " AND quantity > 0 ";
                        break;
                    case "has-vat";
                        $where_query[] = " AND `has_vat` = 1 ";
                        break;
                    case "out-stock";
                        $where_query[] = " AND `quantity` = 0 ";
                        break;
                    case "has-market-price";
                        $where_query[] = " AND `market_price` > 0 ";
                        break;
                    case "no-price";
                        $where_query[] = " AND `price` = 0 ";
                        break;
                    case "no-warranty";
                        $where_query[] = " AND LENGTH(`warranty`) < 2 ";
                        break;
                    case "no-sku";
                        $where_query[] = " AND LENGTH(`sku`) < 2 ";
                        break;
                    case "has-config";
                        $where_query[] = " AND `config_count` > 0 ";
                        break;
                    case "no-image";
                        $where_query[] = " AND `image_count` = 0 ";
                        break;
                    case "no-category";
                        $where_query[] = " AND `category` = '0'  ";
                        break;
                    case "display-off";
                        $where_query[] = " AND `status`=0 ";
                        break;
                    case "display-on";
                        $where_query[] = " AND `status`=1 ";
                        break;
                    case "has-promotion":
                        $where_query[] = " AND LENGTH(`special_offer`) < 5 ";
                        break;
                    //...add more
                }
            }
        }


        //- brand id or ids or brand_indexes
        if( array_key_exists("brand", $filter_condition) && sizeof($filter_condition["brand"])) {

            $condition = array();
            foreach ($filter_condition["brand"] as $brand_id) {
                if(!intval($brand_id)) continue;
                $condition[] = " brand_id = ? ";
                $bind_types[] = 'd';
                $bind_values[] = $brand_id;
            }

            if(sizeof($condition)) {
                $where_query[]  = " AND ( ".join(" OR ", $condition)." )";
            }
        }


        //- collection id or ids
        if( array_key_exists("collection", $filter_condition) && sizeof($filter_condition["collection"])) {
            $condition = array();

            foreach ($filter_condition["collection"] as $_id) {
                if(!intval($_id)) continue;

                $condition[] = " `id` IN ( SELECT `product_id` FROM ".$this->tb_collection_product." WHERE `collection_id` = ? ) ";
                $bind_types[] = 'd';
                $bind_values[] = $_id;
            }

            $where_query[] = " AND ( ".join(" OR ", $condition)." )";
        }


        //- rating: 1-> 5
        if( array_key_exists("rating", $filter_condition) && sizeof($filter_condition["rating"])) {
            $condition = array();
            foreach ($filter_condition["rating"] as $_id) {
                $condition[] = " `rating` = ? ";
                $bind_types[] = 'd';
                $bind_values[] = $_id;
            }

            $where_query[] = " AND ( ".join(" OR ", $condition)." )";
        }


        //- category id or ids
        if( array_key_exists("category", $filter_condition) && sizeof($filter_condition["category"])) {

            $objProductCategoryModel = new ProductCategoryModel();

            $condition = array();
            foreach ($filter_condition["category"] as $cat_id) {

                $cat_info = $objProductCategoryModel->getInfo($cat_id);
                if(!$cat_info) continue;

                if($cat_info["is_parent"]) {
                    $childListId = ($cat_info["child_ids"]) ?: '0';
                    $condition[] = " `category_id` IN (".$childListId .") ";
                }else{
                    $condition[] = " `category_id` = ? ";
                    $bind_types[] = 'd';
                    $bind_values[] = $cat_id;
                }
            }

            if(sizeof($condition)) {
                $where_query[] = " AND `id` IN ( SELECT DISTINCT `item_id` FROM ".$this->tb_product_per_category." WHERE " . join(" OR ", $condition) . " )";
            }
        }


        // spec_group_id
        if( array_key_exists("spec_group_id", $filter_condition) && sizeof($filter_condition["spec_group_id"])) {

            $condition = array();
            foreach ($filter_condition["spec_group_id"] as $_id) {
                if(!$_id) continue;

                $condition[] = " `spec_group_id` = ? ";
                $bind_types[] = 'd';
                $bind_values[] = $_id;
            }

            $where_query[] = "  AND ( ".join(" OR ", $condition )." ) ";
        }


        //- hotType: saleoff | not | new | or combination of types
        if( array_key_exists("hotType", $filter_condition) && sizeof($filter_condition["hotType"])) {
            $config_hottype = Config::getProductHotTypeList();
            $condition = array();
            foreach ($filter_condition["hotType"] as $_id) {
                if(!array_key_exists($_id, $config_hottype)) continue;

                $condition[] = " `hot_type` = ? ";
                $bind_types[] = 's';
                $bind_values[] = $_id;
            }

            if(sizeof($condition)) {
                $where_query[] = " AND `id` IN (SELECT `pro_id` FROM ".$this->tb_product_hot." WHERE 1 AND ( ".join(" OR ", $condition)." ) ) ";
            }

        }


        //- attribute values
        /*
        if( array_key_exists("attribute", $filter_condition) && sizeof($filter_condition["attribute"])) {
            $filter_attr_value_list = $filter_condition["attribute"];
            //filter = attr_value_1-attr_value_2-attr_value_3,
            $query_attr_id = [];
            $count_filter = 0;

            foreach($filter_attr_value_list as $attr_id){
                $attr_id = (int) $attr_id;
                if($attr_id) {
                    $query_attr_id[] = $attr_id;
                    $count_filter ++;
                }
            }

            $product_filter_id_match = array();
            if(sizeof($query_attr_id)) {
                $query = $this->db->runQuery("
										SELECT DISTINCT pro_id , COUNT(*) as num_pro
										FROM ".TB_PRODUCT_ATTRIBUTE."
										WHERE attr_value_id IN (".join(',', $query_attr_id).")
										GROUP BY pro_id
										HAVING num_pro = ".$count_filter."
										LIMIT 10000
									");
                foreach ( $this->db->fetchAll($query) as $rs ) {
                    $product_filter_id_match[] = $rs["pro_id"];
                }
            }

            $where_query[] = (sizeof($product_filter_id_match)) ? " AND `id` IN (".join(', ', $product_filter_id_match).") " : " AND `id` = 0 " ;

            //xay lai url de back
            if(!$this->objCategoryProduct) $this->objCategoryProduct = new CategoryProduct();

            foreach($filter_attr_value_list as $value_id ){
                $att_name = $this->objCategoryProduct->atrValueName($value_id);

                $filterPath["attribute"][] =  array(
                    "id"   => $value_id,
                    "name" => $att_name,
                );
                $filter_messages[] = [
                    'title' => $att_name,
                    'reset' => Url::buildUrl($this->_request_url, ['filter' => join(FILTER_VALUE_SEPARATOR, remove_item_from_array($filter_condition["attribute"], $value_id))] ),
                ];
            }

        }

        */

        //- attribute values
        if( array_key_exists("attribute", $filter_condition) && sizeof($filter_condition["attribute"])) {

            $filter_attr_value_list = $filter_condition["attribute"];

            $attr_values_per_attribute = $this->groupAttributeValuesByAttributeId($filter_attr_value_list);

            $having_match_count = sizeof(array_keys($attr_values_per_attribute));

            $attribute_info_list = $this->groupAttributeListInfo(array_keys($attr_values_per_attribute));

            $attr_where_query = [];
            foreach ($attr_values_per_attribute as $_att_id => $_att_value_list) {
                // if same attribute : find products that match either ONE of these values (not match ALL values)
                $_att_info = $attribute_info_list[$_att_id];
                if (!$_att_info) continue;

                // this attribute requires all products must have ALL selected values
                if ($_att_info['value_match_all'] && sizeof($_att_value_list) > 1) {

                    $_product_id_match_all = $this->getProductMatchAllAttributeValueIds($_att_value_list);

                    if (sizeof($_product_id_match_all) > 0) {
                        $attr_where_query[] = " ( `id` IN (" . join(",", $_product_id_match_all) . ") ) ";
                    } else {
                        $attr_where_query[] = " ( `id` = -1 ) ";
                    }

                } else {
                    $attr_where_query[] = " ( SELECT DISTINCT `pro_id` FROM " . TB_PRODUCT_ATTRIBUTE . " WHERE (" .
                        join(" OR ", array_map(function ($_item) { return " `attr_value_id` = '" . intval($_item['id']) . "' "; }, $_att_value_list))
                        . " ) ) ";
                }

            }

            $product_filter_id_match = array();

            if (sizeof($attr_where_query)) {
                $query = $this->db->runQuery("
                                    SELECT `pro_id` , COUNT(*) AS num_pro
                                    FROM ( " . join(" UNION ALL ", $attr_where_query) . " ) AS tpm_tb
                                    GROUP BY pro_id
                                    HAVING num_pro = " . $having_match_count . "
                                    LIMIT 10000
                                ");
                foreach ($this->db->fetchAll($query) as $rs) {
                    $product_filter_id_match[] = $rs["pro_id"];
                }
            }

            $where_query[] = (sizeof($product_filter_id_match)) ? " AND " . TB_PRODUCT_LIGHT . ".`id` IN (" . join(', ', $product_filter_id_match) . ") " : " AND " . TB_PRODUCT_LIGHT . ".`id` = 0 ";

        }


        //- price range
        if(
            isset($filter_condition["price"])
            && sizeof($filter_condition["price"])
            && ($filter_condition["price"]['min'] > 0 || $filter_condition["price"]['max'] > 0)
        ) {

            //limit by price range
            $maxPrice = DataClean::makeInputSafe($filter_condition["price"]['max'], DataType::INTEGER);
            $minPrice = DataClean::makeInputSafe($filter_condition["price"]['min'], DataType::INTEGER);

            $price_range_query = '';
            if($maxPrice > 0 && $minPrice > 0){
                $price_range_query = " ( `price` BETWEEN '".$minPrice."' AND '".$maxPrice."'  ) ";

            }else if($maxPrice > 0){
                $price_range_query = " `price` < '".$maxPrice."'   ";

            }else if($minPrice > 0){
                $price_range_query = " `price` >='".$minPrice."' ";
            }

            $where_query[] = " AND ". $price_range_query;
        }

        // ------------

        return array( join(" ", $where_query), $bind_types, $bind_values);
    }


}