<?php

namespace Beike\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\SoftDeletes;

class Logistics extends Base{
    use HasFactory;
    use SoftDeletes;

    protected $fillable = [
        'name',
        'warehouse_name',
        'country_id',
        'country_ids',
        'type',
        'first_weight',
        'first_weight_fee',
        'continuation_weight_max',
        'add_weight',
        'continuation_weight_fee',
        'throwing_ratio',
        'num_fee',
        'day_min',
        'day_max',
        'position'
    ];
    /**
     * Common: 根据国家ID 获取所有关联的物流列表
     * Author: wu-hui
     * Time: 2023/08/22 10:31
     * @param int      $countryId
     * @param string[] $field
     * @return array
     */
    public static function getAll(int $countryId,$field = ['id','name','warehouse_name','type','day_min','day_max']){
        $list = self::select($field)
            ->whereRaw(\DB::raw('FIND_IN_SET('.$countryId.',country_ids)'))
            ->with(['weights'])
            ->orderBy('position','ASC')
            ->orderBy('id','ASC')
            ->get();


        return $list ? $list->toArray() : [];
    }

    /**
     * Common: 物流过滤 - 根据商品和物流列表过滤  仅返回有效的物流
     * Author: wu-hui
     * Time: 2023/08/29 10:02
     * @param $logisticsList
     * @param $productsList
     * @return array|array[]
     */
    public static function LogisticsFiltering($logisticsList,$productsList){
        $eligibleList = array_map(function($logisticsItem) use ($productsList){
            // 判断：物流是否按照重量计算   weight：按重量计费，num：按数量计费，free：卖家包邮
            if($logisticsItem['type'] == 'weight'){
                $weights = (array)$logisticsItem['weights'];// 续重区间列表
                $firstWeight = (float)$logisticsItem['first_weight'];// 首重
                if(!$weights) {
                    $logisticsItem = [];
                }else{
                    // 循环判断：只要有一个商品不符合条件  则当前物流不可用；
                    foreach($productsList as $productItem){
                        $surplusWeight = $productItem['sum_weight'] - $firstWeight;// 总重量 - 减首重  = 剩余重量
                        // 判断：如果剩余重量小于等于0 则符合条件；否则计算续重区间
                        if($surplusWeight <= 0){
                            continue;
                        }else{
                            $eligibleCount = collect($weights)
                                ->where('min','<=',$surplusWeight)
                                ->where('max','>',$surplusWeight)
                                ->count();
                            if($eligibleCount <= 0) {
                                $logisticsItem = [];
                                break;
                            }
                        }
                    }
                }
            }

            return $logisticsItem;
        },$logisticsList);

        return array_filter($eligibleList);
    }


    public function country(){
        return $this->belongsTo(Country::class,'country_id','id');
    }

    public function weights(){
        return $this->hasMany(LogisticsWeight::class,'logistics_id','id');
    }


}