<?php
declare(strict_types=1);
namespace app\api\service;

use app\common\model\ShopList;
use app\common\model\StockConfig;
use app\common\model\ProductConfig;
use app\common\model\StockDetail;
use app\common\model\ShopDelivery;
/**
 * 录入发货
 */
class SpecService{

   
      //判断价格为空
      public static function getIsZeroSpecsPrice(array $data): bool
      {     
            $result = false;
            foreach ($data as $item) {
                  if(empty($item['price'])) return false;
            }
            return $result;
      }


      //获取规格列表
      public static function getSpecsList(int $type_id, array $data): array
      {     
            $result = [];
            foreach ($data as $item) {
              
                  if($item['type_id'] == $type_id){
                        $result[] = $item;
                  }
            }
            return $result;
      }
       
      
       //录入规格列表
      public static function getDeliveryList(int $uid, array $data): array
      {     
            $result = [];
            $stockData = [];
            $customer_id = ShopList::where('id', $data['shop_id'])->value('customer_id');
            foreach ($data['variety'] as $item) {
                  if(count($item) != 6 || empty(floatval($item['num'])))  throw new \Exception('参数有误！');
                  $specs = ProductConfig::where('id', $item['spec_id'])->field('weight,box_id')->find();
                  if(!$specs)  throw new \Exception('参数有误！');
                  $weight = bcmul((string)$specs->weight, $item['num'], 2);
                  $result[] = [
                        'user_id'         => $uid, 
                        'customer_id'     => $customer_id,
                        'shop_id'         => $data['shop_id'],
                        'plat_id'         => $data['plat_id'],
                        'variety_id'      => $item['variety_id'],
                        'spec_id'         => $item['spec_id'],
                        'num'             => $item['num'],
                        'weigh'           => $weight,
                        'price'           => $item['price'],
                        'total_price'     => bcmul($item['price'], $item['num'], 2)
                  ];
              
                  //根据品种扣除库存
                  $varietyNum = StockDetail::setStockConfigNum((int)$item['variety_id'], (string)-$weight, StockConfig::VarietyName);
                  $stockData[] = [
                        'user_id'         => $uid, 
                        'type_id'         => StockConfig::VarietyName,
                        'type'            => 1,
                        'variety_id'      => $item['variety_id'],
                        'change'          => -$weight,
                        'after'           => $varietyNum,
                        'remark'          => '录入出库'
                  ];
                  //根据规格扣除包装箱
                  $boxNum = StockDetail::setStockConfigNum($specs->box_id, (string)-$item['num'], StockConfig::PackingBox);
                  $stockData[] = [
                        'user_id'         => $uid, 
                        'type_id'         => StockConfig::PackingBox,
                        'type'            => 1,
                        'variety_id'      => $item['variety_id'],
                        'change'          => -$item['num'],
                        'after'           => $boxNum,
                        'remark'          => '录入出库'
                  ];
            }
            return [$result, $stockData];
      }

      public static function getDeliveryEdit(int $user_id, array $data)
      {
            //查询发货记录
            $delivery = ShopDelivery::where('user_id', $user_id)->where('id', $data['ids'])->find();
            if(!$delivery) throw new \Exception('参数有误！');

            //判断是否当天
           if(substr($delivery->createtime, 0, 10) != date('Y-m-d')) throw new \Exception('只能修改当日发货记录！');
    
            //修改库存
            $specs = ProductConfig::where('id', $delivery->spec_id)->field('weight,box_id')->find();
            if(!$specs)  throw new \Exception('参数有误！');
         
            //根据品种扣除库存
            $weight = bcmul((string)$specs->weight, $data['num'], 2); //总重
           
            //扣除品种
            StockDetail::setStockConfigNum($delivery->variety_id, bcsub($delivery->weigh, $weight, 2), StockConfig::VarietyName);

            //根据规格扣除包装箱
            StockDetail::setStockConfigNum($specs->box_id, bcsub((string)$delivery->num, $data['num'], 2), StockConfig::PackingBox);
               
            //修改数量
            $price  = bcdiv($delivery->total_price, (string)$delivery->num, 2); //单价
            $delivery->weigh = $weight; //总重
            $delivery->num   = $data['num'];
            $delivery->total_price = bcmul($price, $data['num'], 2);
            return $delivery->save();
      }
   

      //删除
      public static function getDeliveryDel(int $user_id, array $data)
      {
            //查询发货记录
            $delivery = ShopDelivery::where('user_id', $user_id)->where('id', $data['ids'])->find();
            if(!$delivery) throw new \Exception('参数有误！');

            //判断是否当天
           if(substr($delivery->createtime, 0, 10) != date('Y-m-d')) throw new \Exception('只能修改当日发货记录！');
    
            //修改库存
            $box_id = ProductConfig::where('id', $delivery->spec_id)->value('box_id');
            if(!$box_id)  throw new \Exception('参数有误！');

            //扣除品种
            StockDetail::setStockConfigNum($delivery->variety_id, $delivery->weigh, StockConfig::VarietyName);

            //根据规格扣除包装箱
            StockDetail::setStockConfigNum($box_id, (string)$delivery->num, StockConfig::PackingBox);

            //删除
            return $delivery->delete();
      }
   
}