<?php
/**
 * 订单商品模型
 */

namespace app\common\model;

use think\model\concern\SoftDelete;
use think\db;
class OrderGoods extends Model
{
    use SoftDelete;
    public $softDelete = true;
    protected $name = 'order_goods';
    protected $autoWriteTimestamp = true;


    //下单扣除订单库存
    public static function decStock($goods)
    {
        $goods_ids = [];
        foreach ($goods as $k1 => $good) {
            $item_value = $good['item_value'];
            //扣除库存,扣除规格库存,增加商品销量
            Db::name('goods')
                ->where('id', $good['goods_id'])
                ->update([
                    'order_num' => Db::raw("order_num+" . $good['goods_num']),
                    'stock' => Db::raw('stock-' . $good['goods_num'])
                ]);
            //扣除规格表库存
            Db::name('goods_item')
                ->where(array('goods_id'=>$good['goods_id'],'spec_value'=>$good['item_value']))
                ->setDec('stock', $good['goods_num']);
            $goods_ids[] = $good['goods_id'];
        }
        //下架商品总库存为0的商品
        if (!empty($goods_ids)){
            self::outGoods($goods_ids);
        }
    }

    /**
     * Notes: 下单后下架商品总库存为0的商品
     * @param $goods_id
     */
    public static function outGoods($goods_ids)
    {
        try{
            $goods = Db::name('goods')
                ->field('id, stock')
                ->where('id', 'in', $goods_ids)
                ->select();
            if (empty($goods)){
                return true;
            }
            $need_handle_ids = [];
            foreach ($goods as $good) {
                if ($good['stock'] <= 0) {
                    $need_handle_ids[] =  $good['id'];
                }
            }
            if (empty($need_handle_ids)){
                return true;
            }
            //下架订单商品中 商品总库存已为0的商品
            Db::name('goods')->where('id', 'in', $need_handle_ids)->update(['status' => 0]);
        } catch (\Exception $e) {}

    }
}