lachang/app/api/controller/Cart.php

<?php
// +----------------------------------------------------------------------
// | 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 ]
// +----------------------------------------------------------------------
// | Copyright (c) 2017~2021 https://www.yiovo.com All rights reserved.
// +----------------------------------------------------------------------
// | 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
// +----------------------------------------------------------------------
// | Author: 萤火科技 <admin@yiovo.com>
// +----------------------------------------------------------------------
declare (strict_types = 1);

namespace app\api\controller;

use app\api\model\ActivityDiscount;
use app\api\model\Cart as CartModel;
use app\api\model\GoodsSku as GoodsSkuModel;
use app\api\model\Goods as GoodsModel;
use app\api\model\UserCoupon as UserCouponModel;
use \app\api\model\card\UserRiceCard as UserRiceCardModel;
use app\api\service\Cart as CartService;
use app\api\service\User as UserService;
use app\common\exception\BaseException;
use app\common\library\helper;
use app\common\enum\goods\Status as GoodsStatusEnum;
use think\facade\Cache;

/**
 * 购物车管理
 * Class Cart
 * @package app\api\controller
 */
class Cart extends Controller
{
    /**
     * 购物车商品列表
     * @return array|\think\response\Json
     * @throws BaseException
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\DbException
     * @throws \think\db\exception\ModelNotFoundException
     */
    public function list()
    {
        // 购物车商品列表
        $service = new CartService;
        $list = $service->getList();
        $sum_total_price  =  0;
        $activity_discount_total_price  =  0;
        // 整理购物车商品列表
        $orderGoodsIds = [];
        $goodList = [];
        foreach ($list as $item) {
            $item['err_status'] = 0;
//            if(empty($item['goods']['skuInfo'])){
//                $item['err_status'] = 3;
//                $item['selected'] = 0;
//            }else{
                if($item['goods_num']>$item['goods']['skuInfo']['stock_num']|| $item['goods_num']==0){ //库存不足
                    $item['err_status'] = 1;
                    $item['selected'] = 0;
                }
//            }
            if($item['goods']['status']==GoodsStatusEnum::OFF_SALE){ //下架商品
                $item['err_status'] = 2;
                $item['selected'] = 0;
            }
            if($item['selected'] && $item['err_status']==0){//用户选中的商品勾选后的总金额
                $item['total_price'] = $item['goods']['skuInfo']['goods_price']*$item['goods_num'];
                (new GoodsModel)->getActivityDiscountDetail($item);
                $goodList[] = $item;
                $sum_total_price += $item['total_price'];
                $activity_discount_total_price += $item['activity_discount_total_price'];
                $orderGoodsIds[] = $item['goods_id'];
            }
        }
        if(count($list)){
            $list = array_values($list->toArray());
        }
        // 购物车商品类型数量
        $cartTotal = (new CartModel)->getCartGoodsTotal();
        $sum_total_price = helper::bcadd($sum_total_price,0,2);
        $activity_discount_total_price = helper::bcadd($activity_discount_total_price,0,2);
        // 当前用户ID
        $user = UserService::getCurrentLoginUser(true);
        $user_coupon = [];
        $total_price = $sum_total_price-$activity_discount_total_price;
//        dd($orderGoodsIds);
        if($total_price>0){
            // 当前用户可用的优惠券列表(筛选了除外商品)
            $user_coupon = UserCouponModel::getUserCouponList($user['user_id'], $goodList, $orderGoodsIds);
            $user_coupon = array_values($user_coupon);
        }
//        //我的可用米卡列表
//        $user_rice_card = UserRiceCardModel::getUserRiceCardList($user['user_id']);
        return $this->renderSuccess(compact('cartTotal','sum_total_price', 'activity_discount_total_price', 'list', 'user_coupon'));
    }

    /**
     * 购物车商品总数量
     * @return array|\think\response\Json
     * @throws BaseException
     */
    public function total() {
        $model = new CartModel;
        $cartTotal = $model->getCartGoodsTotal();
        return $this->renderSuccess(compact('cartTotal'));
    }

    /**
     * 加入购物车
     * @param int $goodsId 商品id
     * @param string $goodsSkuId 商品sku索引
     * @param int $goodsNum 商品数量
     * @param int $staffUserId 链接分享者ID
     * @return array|\think\response\Json
     * @throws BaseException
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\DbException
     * @throws \think\db\exception\ModelNotFoundException
     */
    public function add(int $goodsId, string $goodsSkuId, int $goodsNum, int $staffUserId = 0)
    {
        if(!is_numeric($goodsSkuId)){
            //自动选择库存足够的商品
            $goodsSkuId = GoodsSkuModel::where([['goods_id','=',$goodsId],['stock_num','>=',$goodsNum]])->order('id','asc')->value('goods_sku_id')??'';
            if(!is_numeric($goodsSkuId)){
                return $this->renderError( '商品不存在');
            }
        }
        $model = new CartModel;
        if (!$model->add($goodsId, $goodsSkuId, $goodsNum, $staffUserId)) {
            return $this->renderError($model->getError() ?: '加入购物车失败');
        }
        // 购物车商品总数量
        $cartTotal = $model->getCartGoodsTotal();
        return $this->renderSuccess(compact('cartTotal'), '加入购物车成功');
    }

    /**
     * 更新购物车商品数量
     * @param int $goodsId 商品id
     * @param string $goodsSkuId 商品sku索引
     * @param int $goodsNum 商品数量
     * @return array|\think\response\Json
     * @throws BaseException
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\DbException
     * @throws \think\db\exception\ModelNotFoundException
     */
    public function update(int $goodsId, string $goodsSkuId, int $goodsNum)
    {
        $model = new CartModel;
        if (!$model->sUpdate($goodsId, $goodsSkuId, $goodsNum)) {
            return $this->renderError($model->getError() ?: '更新失败');
        }
        // 购物车商品总数量
        $cartTotal = $model->getCartGoodsTotal();
        return $this->renderSuccess(compact('cartTotal'), '更新成功');
    }

    /**
     * 删除购物车中指定记录
     * @param array $cartIds 购物车ID集, 如果为空删除所有
     * @return array|\think\response\Json
     * @throws BaseException
     */
    public function delete(array $cartIds = [])
    {
        $model = new CartModel;
        if (!$model->clear($cartIds)) {
            return $this->renderError($model->getError() ?: '操作失败');
        }
        // 购物车商品总数量
        $cartTotal = $model->getCartGoodsTotal();
        return $this->renderSuccess(compact('cartTotal'), '操作成功');
    }

    /**
     * 勾选购物车中指定记录
     * @param array $cartIds 购物车ID集, 如果为空删除取消全部勾选
     * @param int $selected 选中状态 0未选中 1选中
     * @return array|\think\response\Json
     * @throws BaseException
     */
    public function goodsSelect(int $selected, array $cartIds = []){
        $model = new CartModel;
        if (!$model->updateSelected($cartIds,$selected)) {
            return $this->renderError($model->getError() ?: '操作失败');
        }
        return $this->renderSuccess();
    }

    /**
     * 更改购物车商品规格
     * @param int $cartId
     * @param int $goodsId
     * @param string $goodsSkuId
     * @return array
     * @throws BaseException
     * @author: zjwhust
     * @Time: 2021/9/26 17:50
     */
    public function updSku(int $cartId, int $goodsId, string $goodsSkuId){
        $model = new CartModel;
        if (!$model->updSku($cartId, $goodsId, $goodsSkuId)) {
            return $this->renderError($model->getError() ?: '操作失败');
        }
        return $this->renderSuccess();
    }

}