<?php

namespace App\Service;

use Hyperf\DbConnection\Db;
use Hyperf\Redis\Redis;
use Hyperf\Utils\ApplicationContext;

class CouponService implements CoupnoServiceInterface
{

    /**
     * @inheritDoc
     */
    public function getOrderCanUseCoupons($orderAmount, $marketId, $userId, $fields=[], $type = 1, $storeTypeIds = [0])
    {

        // 用户今日使用过的优惠券
        $redis = ApplicationContext::getContainer()->get(Redis::class);
        $couponTodayUsedIds = $redis->sMembers('coupon_'.date('Ymd').'_used_'.$userId);
        $currentTime = time();

        $builder = Db::table('ims_system_coupon_user_receive as receive')
            ->join('ims_system_coupon_user as coupon', 'coupon.id', '=', 'receive.system_coupon_user_id', 'inner');

        if (is_array($fields)&&!empty($fields)) {
             $builder->select($fields);
        }

        if (is_array($couponTodayUsedIds)&&!empty($couponTodayUsedIds)) {
            $builder->whereNotIn('coupon.id', $couponTodayUsedIds);
        }

        return $builder->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()
            ->toArray();
    }

    /**
     * 缓存优惠券今日使用情况
     * @param $userId
     * @param $couponId
     * @param $couponRecId
     * @return bool
     */
    function cacheTodayCouponUsed($userId, $couponId, $couponRecId)
    {

        $redis = ApplicationContext::getContainer()->get(Redis::class);

        $setRes = $redis->sAdd(
            'coupon_'.date('Ymd').'_used_'.$userId,
            $couponId
        );

        $expireRes = $redis->expire(
            'coupon_'.date('Ymd').'_used_'.$userId,
            strtotime(date('Y-m-d').' 23:59:59')-time()
        );

        return $setRes&&$expireRes;
    }
}