huahuibao/app/mobile/controllers/LotteryController.php

<?php
namespace mobile\controllers;

use Yii;
use common\components\util;
use common\models\xhLuckyDrawAwardCustomer;
use common\models\xhLuckyDrawAwardParticipant;
use common\services\xhLuckyDrawAwardService;
use common\services\xhLuckyDrawActivityService;
use common\services\xhUserService;
use common\services\xhLuckyDrawAwardParticipantService;
use common\services\xhLuckyDrawAwardCustomerService;

class LotteryController extends MobileendController
{
    /**
     * 抽奖活动首页
     * @return string
     */
	public function actionIndex()
	{
        $luckyDrawActivityId = Yii::$app->request->get('id');
        $inviteEncriptKey = urldecode(Yii::$app->request->get('encryptKey'));//加密的用户ID值
        $inviteEncriptKey = empty($inviteEncriptKey) ? '' : $inviteEncriptKey;

        $account = Yii::$app->request->get('account');
        $needAttention = 0;
        $needVip = 0;

        $activity = xhLuckyDrawActivityService::getById($luckyDrawActivityId);
        if(empty($activity)){
            $this->error($_GET['account']);
        }
        //取奖品
        $awardIds = $activity['awardIds'];
        $awardIdsArr = explode(',', $awardIds);
        foreach ($awardIdsArr as $awardId){
            $awards[] = xhLuckyDrawAwardService::getById($awardId);
        }

        //无奖品情况的特殊处理
        if(empty($awards[0])){
            unset($awards[0]);
        }
       /* if(!empty($awards)){
            $awards = \common\components\util::arraySequence($awards, 'order', 'SORT_ASC');
        }*/
        if(!empty($awards)){
            $newAwards = [];
            foreach($awards as $key => $award){
                $newAwards[$award['order']] = $award;
            }
            $awards = $newAwards;
        }

        //dump($awards);die;
        //$this->merchantId = 1;
        $this->merchantCheck($activity, $account);//检测权限

	    $customer = xhUserService::getById($this->userId);
	    //$isMember = $customer['isMember'];//会员
        $isMember = isset($customer['mobile']) ? 1 : 0;//会员暂时用有无手机号识别
        $subscribe = $customer['subscribe'];//关注

        if($activity['needAttention'] == 1 && $subscribe == 0){//活动需关注
            $needAttention = 1;
        }
        if($activity['needVip'] == 1 && $isMember == 0){//活动需是会员
            $needVip = 1;
        }

        $participant = xhLuckyDrawAwardParticipant::getByCondition(['uid'=>$this->userId, 'luckyDrawActivityId'=>$luckyDrawActivityId]);
        if(empty($participant)){
            $drawCount = $activity['drawCount'];
        }else{
            $drawCount = xhLuckyDrawAwardParticipantService::getDrawCount($participant['id'], $activity['drawCount'], $activity['rewardCount'], $activity['inviteCount']);
        }

        return $this->renderPartial('index', [
            'account'=>$account,
            'activity'=>$activity,
            'luckyDrawActivityId'=>$luckyDrawActivityId,
            'drawCount'=>$drawCount,//客户拥有抽奖次数
            'awardsCount'=>count($awards),//奖品数量
            'awards' => $awards,
            'uid' => $this->userId,
            'needAttention' => $needAttention,
            'needVip' => $needVip,
            'encryptKey' => Yii::$app->getSecurity()->encryptByPassword($this->userId, Yii::$app->params['luckDrawSecretKey']),
            'inviteEncriptKey' => $inviteEncriptKey,//邀请人的uid(加密过的)
        ]);
	}

    /**
     * 抽奖活动介绍
     */
	public function actionActivityIntro(){
        $luckyDrawActivityId = Yii::$app->request->get('id');
        $account = Yii::$app->request->get('account');

        $activity = xhLuckyDrawActivityService::getById($luckyDrawActivityId);
        $this->merchantCheck($activity, $account);//检测权限
        dump($activity);
    }

    /**
     * 中奖列表
     * @return string
     */
	public function actionWinList()
	{
        $luckyDrawActivityId = Yii::$app->request->post('id');
        $condition = ['luckyDrawActivityId' => $luckyDrawActivityId];
        $winnerList = xhLuckyDrawAwardCustomer::getAllByCondition($condition);
        if(!empty($winnerList)){
            foreach ($winnerList as $key => $winner){
                $uid = $winner['uid'];
                $customer = xhUserService::getById($uid);
                $winnerList[$key]['avatar'] = $customer['avatar'];
            }
        }
        //按照奖品分类，展出获奖者
        util::successInfo('获取成功', 'success', ['winnerList'=>$winnerList]);
	}

    /**
     * 我参与的活动
     * @return string
     */
	public function actionMyParticipation()
	{

	}

    /**
     * 我获得的奖品
     */
	public function actionMyAwards(){
        $uid = $this->userId;
        $luckyDrawActivityId = Yii::$app->request->post('id');
        $condition = ['uid' => $uid, 'luckyDrawActivityId' => $luckyDrawActivityId];
        $winnerList = xhLuckyDrawAwardCustomer::getAllByCondition($condition);
        util::successInfo('获取成功', 'success', ['winnerList'=>$winnerList]);
    }

    /**
     * 按概率进行抽奖
     */
    public function actionDraw(){
        $encryptKey = Yii::$app->request->get('key');//加密的用户ID值
        $post = Yii::$app->request->post();
        $luckyDrawActivityId = intval($post['id']);
        $totalProbability = 1000;//总概率大小
        $inviteUid = 0;
        $awardSortKeys = [];//所有奖品的排列序号

        $activity = xhLuckyDrawActivityService::getById($luckyDrawActivityId);
        //更新客户抽奖数
        $participant = xhLuckyDrawAwardParticipant::getByCondition(['uid'=>$this->userId, 'luckyDrawActivityId'=>$luckyDrawActivityId]);
        if(empty($participant)){//新增参与者
            if(!empty($encryptKey)){//判断是否受邀请而来,是：更新邀请者的数据
                $encryptKey = urldecode($encryptKey);
                $inviteUid = Yii::$app->getSecurity()->decryptByPassword($encryptKey, Yii::$app->params['luckDrawSecretKey']);
                Yii::warning('lottory:InviteUid '.$inviteUid, __METHOD__);
                if(!is_numeric($inviteUid)){
                    $this->error($_GET['account']);
                }

                if($inviteUid != $this->userId){//排除自己邀请自己的情形
                    //更新此$inviteUid邀请人数
                    $inviteParticipant = xhLuckyDrawAwardParticipant::getByCondition(['uid'=>$inviteUid, 'luckyDrawActivityId'=>$luckyDrawActivityId]);
                    if(empty($inviteParticipant)) {//若推荐人未参加抽奖，也给其记录推荐好友数,但不记录参与时间
                        $data = [
                            'luckyDrawActivityId' => $activity['id'],
                            'uid' => $inviteUid,
                            'useDrawCount' => 0,
                            'inviteCount' => 1,
                            //'participateTime' => time(),
                            'invite' => 0,
                        ];
                        xhLuckyDrawAwardParticipantService::add($data);
                    }else{
                        $data = ['inviteCount' => $inviteParticipant['inviteCount'] + 1];//更新邀请好友数
                        xhLuckyDrawAwardParticipantService::updateById($inviteParticipant['id'], $data);
                    }
                }
            }
            Yii::warning('123 como int');
            $drawCount = $activity['drawCount'];
            $data = [
                'luckyDrawActivityId' => $activity['id'],
                'uid' => $this->userId,
                'useDrawCount' => 1,
                'participateTime' => time(),
                'invite' => $inviteUid,
            ];
            xhLuckyDrawAwardParticipantService::add($data);
            $data = ['participants' => $activity['participants']+1];
            xhLuckyDrawActivityService::updateById($luckyDrawActivityId, $data);
        }else{
            $drawCount = xhLuckyDrawAwardParticipantService::getDrawCount($participant['id'], $activity['drawCount'], $activity['rewardCount'], $activity['inviteCount']);
            if($drawCount <= 0){
                util::failInfo('您已无抽奖机会，去邀请好友获取吧！', 'A0004', ['key'=>-1, 'drawCount'=>$drawCount]);
                Yii::$app->end();
            }
            $data = ['useDrawCount' => $participant['useDrawCount'] + 1];
            if($participant['participateTime'] == 0){//邀请他人新增的记录，无参与时间及增加抽奖活动的人数
                $data['participateTime'] = time();
                $activityData = ['participants' => $activity['participants']+1];
                xhLuckyDrawActivityService::updateById($luckyDrawActivityId, $activityData);
            }
            xhLuckyDrawAwardParticipantService::updateById($participant['id'], $data);
        }

        //获取该抽奖活动的奖品数据
        $awardIds = $activity['awardIds'];
        $awardIdsArr = explode(',', $awardIds);
        foreach ($awardIdsArr as $awardId){
            $awards[] = xhLuckyDrawAwardService::getById($awardId);
        }

        //无奖品情况的特殊处理
        if(empty($awards[0])){
            unset($awards[0]);
        }
        /*$awards = \common\components\util::arraySequence($awards, 'order', 'SORT_ASC');*/
        if(!empty($awards)){
            $newAwards = [];
            foreach($awards as $key => $award){
                $newAwards[$award['order']] = $award;
                $awardSortKeys[] = $award['order'];
            }
            $awards = $newAwards;
        }
        //dump($awards);die;

        foreach ($awards as $key => $val) {
            $arr[$key] = $val['probability'];
        }

        $key = $this->getRand($arr, $totalProbability); //根据概率获取奖品id

        if($key == ''){
            $count = count($awards);
            while(true){
                $randomKey = mt_rand($count, 8);
                if(!in_array($randomKey, $awardSortKeys)){
                    $key = $randomKey;
                    break;
                }
            }
            $code = 'notHit';
            $msg = '未中奖';
        }else{
            //验证有无奖品，有往下走程序，否则报未中奖（终止）
            $award = xhLuckyDrawAwardService::getById($awards[$key]['id']);
            if(($award['count'] - $award['drawCount']) == 0 ){
                $code = 'notHit';
                $count = count($awards);
                while(true){
                    $randomKey = mt_rand($count, 8);
                    if(!in_array($randomKey, $awardSortKeys)){
                        $key = $randomKey;
                        break;
                    }
                }
                $msg = '未中奖';
            }else{
                $code = 'hit';
                $key = $awards[$key]['order'];
                $msg = '获得'.$awards[$key]['awardName'];
                //记录获奖客户
                $data = [
                    'uid' => $this->userId,
                    'userName' => $this->userName,
                    'awardId' => $awards[$key]['id'],
                    'awardName' => $awards[$key]['awardName'],
                    'count' => 1,
                    'luckyDrawActivityId' => $luckyDrawActivityId,
                    'hitTime' => time(),
                ];
                xhLuckyDrawAwardCustomerService::add($data);

                //更新奖品数量
                $data = ['drawCount' => $awards[$key]['drawCount']+1];
                xhLuckyDrawAwardService::updateById($awards[$key]['id'], $data);
            }
        }

        $drawCount -= 1;
        util::successInfo($msg, $code, ['key'=>$key, 'drawCount'=>$drawCount]);
    }

    /**
     * 中奖运算
     * @param $proArr
     * @param $totalProbability
     * @return int|string
     */
    private function getRand($proArr, $totalProbability) { //计算中奖概率
        $rs = ''; //中奖结果
        $proSum = $totalProbability; //概率数组的总概率精度
        //概率数组循环
        foreach ($proArr as $key => $proCur) {
            $randNum = mt_rand(1, $proSum);
            if ($randNum <= $proCur) {
                $rs = $key;
                break;
            } else {
                $proSum -= $proCur;
            }
        }

        return $rs;
    }
}