lanzu_api_2021-12-26/app/Controller/CouponRebateController.php

<?php

declare(strict_types=1);
/**
 * This file is part of Hyperf.
 *
 * @link     https://www.hyperf.io
 * @document https://doc.hyperf.io
 * @contact  group@hyperf.io
 * @license  https://github.com/hyperf/hyperf/blob/master/LICENSE
 */

namespace App\Controller;
use Hyperf\DbConnection\Db;
use Hyperf\Redis\Redis;
use Hyperf\Utils\ApplicationContext;
use App\CouponRebate\CouponRebateInterface;
use http\Client\Curl\User;
use Hyperf\Di\Annotation\Inject;
use App\Model\Coupon;
use App\Model\CouponUserRecType;
use App\Model\CouponRec;
use App\Request\CouponRebateReceiveRequest;
class CouponRebateController extends BaseController
{
    /**
     * @Inject
     * @var CouponRebateInterface
     */
    protected $CouponRebate;
    /**
     * 用户是否领取过领取优惠券
     */
    public function isCouponRebate()
    {
        $user_id = $this->request->input('user_id', 0);
        $res = $this->CouponRebate->isCouponRebate($user_id);
        return $this->success($res);
    }

    /**
     * 返回活动信息
     */
    public function getActiveInfo()
    {
        $res = $this->CouponRebate->getActiveInfo();
        return $this->success($res);
    }

    
    /**
     * 用户领取优惠券
     * 2020.08.04 只领一张优惠券
	*/
    public function userReceiveCoupon(CouponRebateReceiveRequest $validator)
    {
        $userId      = $this->request->input("user_id", 0);
        $receiveType = $this->request->input("receive_type", 0);
        $id         = $this->request->input("id", 0);
        $sendUserId  = $this->request->input("send_user_id", 0);
        $phone       = $this->request->input("phone", '');
        $now     = time();
        
        // status : 0 领取成功  >0 领取失败
        $return = [
            'status'        => 1,
            'data'          => [],
            'coupon_text'   => '继续努力~'
        ];

        Db::transaction( function () use ($id,$receiveType,$userId,$sendUserId,$phone,&$return,$now) {
            //读写锁，完全控制，性能低
            $cp   = Coupon::where('id', $id)->lockForUpdate()
                    ->select('id','title','status','inventory','inventory_use','start_time','end_time','full_amount','discounts')
                    ->first();
        
            $where = [
                'system_coupon_user_id' => $cp->id,
            ];

            if (env('SUB_CHANNEL') == 1) {
                $where['receive_type'] = $receiveType;
            }
            // 查询领取类型一次能领取的数量
            $crt = CouponUserRecType::where($where)->first();
           
            $cr                        = new CouponRec;
            $cr->user_id               = $userId;
            $cr->system_coupon_user_id = $cp->id;
            $cr->order_main_id         = 0;
            $cr->receive_time          = $now;
            $cr->number                = $crt->one_receive_number;
            $cr->number_remain         = $crt->one_receive_number;
            $cr->status                = 0;
            $cr->update_time           = $now;
            $cr->receive_type          = $receiveType;
            $cr->send_user_id          = $sendUserId;
            $cr->phone                 = $phone;
           
            //如果优惠卷库存小于等于已领取的数量 或者 未在活动时间内, 则返回领取失败的优惠券
            if ( 
                $cp->status != 1
                ||
                $cp->inventory <= $cp->inventory_use
                ||
                $cp->inventory < ($cp->inventory_use+$cr->number)
                ||
                $cp->start_time > $now
                ||
                $cp->end_time < $now
                )
            {
                $return['status'] = 2;
                $return['coupon_text'] = '红包已经领完~';
            }else{
                $cp->inventory_use += $cr->number;//记录已领取的数量
                if ( $cr->save() && $cp->save() ) {
                    $return['status'] = 0;
                    $return['data'] = $cp;
                    $return['coupon_text'] = $cp['discounts'].'元红包';
                }
            }

        });

        return $this->success($return);
    }
}