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90 lines
3.4 KiB
90 lines
3.4 KiB
<?php
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// +----------------------------------------------------------------------
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// | 萤火商城系统 [ 致力于通过产品和服务，帮助商家高效化开拓市场 ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2017~2023 https://www.yiovo.com All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed 这不是一个自由软件，不允许对程序代码以任何形式任何目的的再发行
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// +----------------------------------------------------------------------
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// | Author: 萤火科技 <admin@yiovo.com>
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// +----------------------------------------------------------------------
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declare (strict_types=1);
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namespace app\api\service\order\source\checkout;
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use app\api\service\Order as OrderService;
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use app\common\enum\order\OrderSource as OrderSourceEnum;
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/**
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* 订单结算台-砍价商品扩展类
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* Class Bargain
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* @package app\api\service\order\source\checkout
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*/
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class Bargain extends Basics
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{
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/**
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* 验证商品列表
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* @return bool
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*/
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public function validateGoodsList(): bool
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{
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// 验证商品是否下架
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// mix: 此处不验证砍价商品是否下架, 因为砍价任务完成才允许下单
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// 判断商品库存
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if (!$this->validateGoodsSeckillStock()) {
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return false;
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}
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// 验证商品限购
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if (!$this->validateLimitNum()) {
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return false;
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}
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return true;
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}
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/**
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* 判断商品库存数量
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* @return bool
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*/
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private function validateGoodsSeckillStock(): bool
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{
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foreach ($this->goodsList as $goods) {
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if ($goods['total_num'] > $goods['skuInfo']['stock_num']) {
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$this->error = "很抱歉，商品 [{$goods['goods_name']}] 库存不足";
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return false;
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}
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}
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return true;
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}
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/**
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* 验证商品限购
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* @return bool
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*/
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public function validateLimitNum(): bool
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{
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foreach ($this->goodsList as $goods) {
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// 不限购
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if (!$goods['is_restrict']) return true;
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// 获取用户已下单的件数（未取消 订单来源）
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$alreadyBuyNum = OrderService::getGoodsBuyNum($this->user['user_id'], $goods['goods_id'], OrderSourceEnum::BARGAIN);
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// 情况1: 已购买0件, 实际想购买5件
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if ($alreadyBuyNum == 0 && $goods['total_num'] > $goods['restrict_total']) {
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$this->error = "很抱歉，该商品限购{$goods['restrict_total']}件，请修改购买数量";
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return false;
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}
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// 情况2: 已购买3件, 实际想购买1件
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if ($alreadyBuyNum >= $goods['restrict_total']) {
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$this->error = "很抱歉，该商品限购{$goods['restrict_total']}件，您当前已下单{$alreadyBuyNum}件，无法购买";
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return false;
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}
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// 情况3: 已购买2件, 实际想购买2件
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if (($alreadyBuyNum + $goods['total_num']) > $goods['restrict_total']) {
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$diffNum = ($alreadyBuyNum + $goods['total_num']) - $goods['restrict_total'];
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$this->error = "很抱歉，该商品限购{$goods['restrict_total']}件，您最多能再购买{$diffNum}件";
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return false;
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}
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}
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return true;
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}
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} |