fastadmin_tailored/application/common/Service/lottery/LuckLotteryServices.php

<?php


namespace app\services\lottery;
use app\admin\model\lottery\Info;
use app\admin\model\lottery\Record;
use app\admin\model\User;
use think\Db;

/**
 *
 * Class LuckLotteryServices
 * @package app\services\activity\lottery
 */
class LuckLotteryServices
{
    /**
     * 抽奖形式，奖品数量
     * @var int[]
     */
    protected $lottery_type = [
        '1' => 8 //九宫格
    ];
    /**
     * 抽奖类型
     * @var string[]
     */
    protected $lottery_factor = [
        '1' => '积分',
        '2' => '余额',
        '3' => '下单支付成功',
        '4' => '订单评价',
        '5' => '关注公众号'
    ];

    public function getLottery($id, $field = '*',$with = ['prize'])
    {
        $time = time();
        return Info::where('id',$id)
            ->with($with)
            ->where('status', 1)
            ->where('start_time', '<=', $time)
            ->where('end_time', '>=', $time)
            ->find();
    }

    public function getLotteryInfo($id, $field = '*',$with = ['prize'])
    {
        return Info::where('id',$id)
            ->where('status', 1)
            ->find();
    }




    /**
     * 抽奖
     * @param int $uid
     * @param int $lottery_id
     * @return mixed
     * @throws \Psr\SimpleCache\InvalidArgumentException
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\DbException
     * @throws \think\db\exception\ModelNotFoundException
     */
    public function luckLottery( $userInfo,  $lottery_id)
    {

        $lottery = $this->getLotteryInfo($lottery_id, '*', [], true);
        if (!$lottery) {
           return [1,'抽奖活动不存在'];
        }

        $uid  = $userInfo['id'];
        $lottery = $lottery->toArray();
        if ( $lottery['lottery_num_term'] > 0 &&  $this->getPaperDateGradeCount($lottery_id,$uid) >= $lottery['lottery_num_term']) {
            return [1,'当前抽奖次数已达今日上限，明天再来吧~'];
        }

        $lotteryPrizeServices = new LuckPrizeServices();
        $lotteryPrize = $lotteryPrizeServices->getLotteryPrizeList($lottery_id);
        if (!$lotteryPrize) {
            return [1,'抽奖奖品不存在'];
        }
        $lotteryPrize = collection($lotteryPrize)->toArray();

        return Db::transaction(function () use ($uid, $lotteryPrize, $userInfo, $lottery) {
            $luckPrizeServices =new LuckPrizeServices();
            //随机抽奖
            $prize = $luckPrizeServices->getLuckPrize($lotteryPrize);
            if (!$prize) {
                return [1,'抽奖异常'];
            }
            //中奖扣除积分、余额
            list($nError,$msg) = $this->lotteryFactor($uid, $userInfo, $lottery);
            if ($nError ==  1) {
                return [1,$msg];
            }
            //中奖减少奖品数量
            list($nError,$msg) = $luckPrizeServices->decPrizeNum($prize['id'], $prize);
            if ($nError ==  1) {
                return [1,$msg];
            }
            $lotteryRecordServices = new LuckLotteryRecordServices();
            //中奖写入记录
            list($nError,$record) = $lotteryRecordServices->insertPrizeRecord($uid, $prize, $userInfo);
            if ($nError ==  1) {
                return [1,$record];
            }
            //不是站内商品直接领奖
            /*if ($prize['type'] != 6) {
                $lotteryRecordServices->receivePrize($uid, (int)$record->id);
            }*/
            $prize['lottery_record_id'] = $record->id;
            return [0,$prize];
        });
    }


    /**
     * 次数
     * @param int    $paper_id 试卷ID
     * @param string $date     日期
     * @return int|string
     */
    public static function getPaperDateGradeCount($lottery_id,$uid)
    {
        if (!$lottery_id) {
            return 0;
        }
        return Record::where('lottery_id', $lottery_id)->where('user_id',$uid)->whereTime('createtime', 'today')->count();
    }

    /**
     * 抽奖消耗扣除用户积分、余额等
     * @param int $uid
     * @param array $userInfo
     * @param array $lottery
     * @return bool
     * @throws \Psr\SimpleCache\InvalidArgumentException
     */
    public function lotteryFactor(int $uid, array $userInfo, array $lottery)
    {
        if (!$userInfo || !$lottery) {
            return true;
        }
        if (!User::where('id',$uid)->setDec('lottery_num')) {
            return [1,'抽奖次数修改失败'];
        }
        return [0,'抽奖次数修改成功'];

    }

    /**
     * 增加抽奖次数
     * @param int $uid
     * @param array $userInfo
     * @param array $lottery
     * @return bool
     * @throws \Psr\SimpleCache\InvalidArgumentException
     */
    public function lotteryNum( $uid)
    {
        if (!User::where('id',$uid)->setInc('lottery_num')) {
            return [1,'抽奖次数增加失败'];
        }
        return [0,'抽奖次数成功增加'];

    }





}