<?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\Di\Annotation\Inject;
use App\Model\CouponUserRecType;
use App\Model\Coupon;
use App\Model\CouponRec;
use Hyperf\DbConnection\Db;
use Hyperf\Redis\Redis;
use Hyperf\Utils\ApplicationContext;
use App\Request\CouponGetListRequest;
use App\Service\CouponService;

class CouponController extends BaseController
{
     /**
     * @Inject
     * @var CouponService
     */
    protected $couponService;

    /**
     * 获取用户可领取优惠卷接口
     */
    public function getSystemCouponUserList(CouponGetListRequest $validator)
    {
        $userId      = $this->request->input('user_id', 0);
        $receiveType = $this->request->input('receive_type', 0);
        $res = $this->couponService->getSystemCouponUserList($userId,$receiveType);
        return $this->success($res);
    }

    //统计用户
    public function userCouponAccount()
    {
        $userId  = $this->request->input("user_id", 0);
        $nowTime = time();

        $num = Db::table('ims_system_coupon_user_receive as receive')
            ->join('ims_system_coupon_user as u', 'u.id', '=', 'receive.system_coupon_user_id')
            ->where([
                ['receive.user_id','=',$userId],
                ['receive.number_remain','>',0],
                ['u.usable_end_time','>',$nowTime],
            ])
            ->whereIn('receive.status',[0,1])
            ->sum('receive.number_remain');

        return $this->success(['total' => $num]);

    }

    /**
     * 用户领取优惠卷
     */
    public function userReceiveCoupon()
    {
        $userId      = $this->request->input("user_id", 0);
        $receiveType = $this->request->input("receive_type", 0);
        $ids         = $this->request->input("ids", '');
        $ids     = explode(',', $ids);
        $now     = time();

        $success = [];
        $fail    = [];

        if ($this->empty($userId) || $this->empty($receiveType) || $this->empty($ids)) {
            return $this->success([
                'success' => $success,
                'fail'    => $fail,
            ]);
        }

        Db::transaction(function () use ($ids,$receiveType,$userId,&$success,&$fail,$now) {
            //读写锁，完全控制，性能底
            $cps     = Coupon::whereIn('id', $ids)->lockForUpdate()->get();
            //写锁，可能在高并发下，读取到脏数据，写入可能有超发情况
            //$cps     = Coupon::whereIn('id', $ids)->sharedLock()->get();

            foreach ($cps as $key => $cp) {

                $where = [
                    'system_coupon_user_id' => $cp->id,
                ];

                if (env('SUB_CHANNEL') == 1) {
                    $where['receive_type'] = $receiveType;
                }

                $crt = CouponUserRecType::where($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          = $receiveType;
                //如果优惠卷库存小于等于已领取的数量, 则返回领取失败的优惠券
                if ($cp->inventory<=$cp->inventory_use||$cp->inventory<($cp->inventory_use+$cr->number)){
                    $fail[] = $cp;
                }else{
                    $cp->inventory_use += $cr->number;//记录已领取的数量
                    if ($cr->save()&&$cp->save()) {
                        $success[] = $cp;
                    } else {
                        $fail[] = $cp;
                    }
                }
            }
        });

        return $this->success([
            'success' => $success,
            'fail'    => $fail,
        ]);

    }

    /**
     * 获取用户已经领取的优惠卷列表
     */
    public function getUserReceiveCouponList()
    {
        $userId  = $this->request->input("user_id");

        $not_expired = [];
        $expired     = [];

        if ($this->empty($userId)) {
            return $this->success(['not_expired' => $not_expired, 'expired' => $expired]);
        }

        $nowTime = time();

        $coupons = Db::table('ims_system_coupon_user_receive as receive')
            ->join('ims_system_coupon_user as u', 'u.id', '=', 'receive.system_coupon_user_id')
            ->where([
                ['receive.user_id','=',$userId],
            ])
            ->whereIn('receive.status',[0,1])
            ->select('u.discounts','u.full_amount','u.introduce','u.usable_end_time','receive.number_remain')
            ->orderBy('u.weigh','desc')
            ->get();

        foreach ($coupons as $key => $coupon) {
            //拼接满减文字提示
            $coupon->full_amount = '满' . $coupon->full_amount . "可用";
            //判断是折扣优惠券还是满减优惠券
            if($coupon->discount_type == 1){
                $coupon->discounts = '￥ '.$coupon->discounts;
            }elseif($coupon->discount_type == 2){
                $coupon->discounts = floatval($coupon->discounts)."折";
            }

            if ($coupon->usable_end_time < $nowTime || $coupon->number_remain <= 0) {
                $expired[] = $coupon;
            } else {
                $not_expired[] = $coupon;
            }
        }
        $ret = ['not_expired' => $not_expired, 'expired' => $expired];

        return $this->success($ret);

    }

    /**
     * 获取用户当前订单可用的优惠券列表
     * 按分类（1订单 等优惠）分组返回
     */
    public function getUserAvailableCoupons()
    {
        // 获取参数
        # 订单金额
        $orderAmount = $this->request->input('order_amount', 0);
        # 用户id
        $userId = $this->request->input('user_id', 0);
        # 市场id
        $marketId = $this->request->input('market_id', 0);
        # 类型，1全平台 2线上 3线下，20200718默认全平台
        $type = $this->request->input('type', 1);
        # 店铺类型id
        $storetypeId = $this->request->input('storetype_id', 0);
        $storetypeIds = explode(',', str_replace('，', ',', $storetypeId));

        $available = [];
        $notAvailable = [];

        if ($this->empty($orderAmount) || $this->empty($userId)) {
            return $this->success([
                'available' => $available,
                'not_available' => array_values($notAvailable)
            ]);
        }

        // 获取用户优惠券
        $currentTime = time();

        $data = Db::table('ims_system_coupon_user_receive as receive')
            ->select([
                'receive.id as receive_id',
                'receive.user_id',
                'receive.number_remain',
                'coupon.id',
                'coupon.title',
                'coupon.full_amount',
                'coupon.discounts',
                'coupon.usable_start_time',
                'coupon.usable_end_time',
                'coupon.discount_type'
            ])
            ->join('ims_system_coupon_user as coupon', 'coupon.id', '=', 'receive.system_coupon_user_id')
            ->where(['receive.user_id' => $userId])
            ->whereIn('receive.status', [0,1])
            ->where('receive.number_remain', '>', 0)
            ->whereIn('coupon.type', [1,$type])
            ->where('coupon.full_amount', '<=', $orderAmount)
            ->where('coupon.usable_start_time', '<=', $currentTime)
            ->where('coupon.usable_end_time', '>=', $currentTime)
            ->where('coupon.usable_number', '<=', Db::raw('receive.number_remain'))
            ->where('coupon.market_id', 'in', [0, $marketId])
            ->whereIn('coupon.storetype_id', $storetypeIds)
            ->orderByRaw('coupon.discounts DESC, coupon.full_amount DESC')
            ->get();

        // 分离用户今天用过的优惠券种类
        $container = ApplicationContext::getContainer();
        $redis = $container->get(Redis::class);
        $couponIds = $redis->sMembers('coupon_'.date('Ymd').'_used_'.$userId);

        foreach ($data as $key => &$item) {
            if (in_array($item->id, $couponIds)) {
                $notAvailable[$item->id] = $item;
            } else {
                $available[] = $item;
            }
        }

        return $this->success([
            'available' => $available,
            'not_available' => array_values($notAvailable)
        ]);

    }

}