kge/application/api/controller/Gift.php

<?php

namespace app\api\controller;

use app\common\controller\Api;
use think\Db;

/**
 * 礼物接口
 */
class Gift extends Api
{
    protected $noNeedLogin = ['getGiftList','getGiftType'];
    protected $noNeedRight = '*';

    public function _initialize()
    {
        parent::_initialize();
        $this->giftModel = new \app\common\model\Gift();
        $this->gifttypeModel = new \app\common\model\GiftType();
    }

    //仅用来测试
    public function test2(){
        $user_id = $this->auth->id;
        $gift_id = input('gift_id');
        $pay_total = input('pay_total');

        Db::startTrans();
        $rs = $this->baobi($user_id,$gift_id,$pay_total);
        if($rs !== true){
            Db::rollback();
        }
        Db::commit();
        dump($rs);
    }

    //gift_id必须是爆币礼物才可以
    //仅用来测试
    public function baobi($user_id,$gift_id,$pay_total){

        //奖项参数
        $conf_arr = Db::name('gift_baobi_config')->where('gift_id',$gift_id)->select();
        if(empty($conf_arr)){
            return true;
        }

        //用户今天的爆币情况，与消费情况，不用区分具体哪个爆币礼物
        $today_start = strtotime(date('Y-m-d'));
        $today_end   = $today_start + 86399;
        $map = [
            'user_id' => $user_id,
            'createtime' => ['BETWEEN',[$today_start,$today_end]],
        ];
        $today_data = Db::name('gift_baobi_log')->field('IFNULL(sum(pay_total),0) as today_pay_total,IFNULL(sum(baobi_total),0) as today_baobi_total')->where($map)->find();
        //dump($today_data);
        if($today_data['today_baobi_total'] >= $today_data['today_pay_total']){
            //爆币比消费还高了，不用抽奖了，记录个日志，返回。这里的日志仅用来记录今日消费 sum(pay_total)
            $data = [];
            $data['user_id']   = $user_id;
            $data['gift_id'] = $gift_id;
            $data['baobi_id'] = 0;
            $data['beilv'] = 0;
            $data['rate'] = 0;
            $data['pay_total'] = $pay_total;
            $data['baobi_total'] = 0;
            $data['createtime'] = time();

            $log_id = Db::name('gift_baobi_log')->insertGetId($data);
            if(!$log_id){
                return false;
            }

            return true;
        }


        //概率新数组
        $gailv = [];
        $bei = 100; //小数变整数
        foreach ($conf_arr as $key=>$value)
        {
            $gailv[$value['id']] = $value['rate']*$bei;
        }
        //dump($gailv);

        //奖项新数组
        $conf_column = [];
        foreach ($conf_arr as $key=>$value)
        {
            $conf_column[$value['id']] = $value;
        }
        //dump($conf_column);

        //抽
        $rid = $this->getRand($gailv); //根据概率获取奖项id
        //dump($rid);

        //返回中奖结果
        $result = $conf_column[$rid];

        //爆币金额
        $baobi_total = bcmul($pay_total,$result['beilv'],0);

        //写入爆币记录，不论有没有钱。全都写入其实是为了方便查日志，比在money_log里找范围更小，而且可删除
        $data = [];
        $data['user_id']   = $user_id;
        $data['gift_id'] = $gift_id;
        $data['baobi_id'] = $result['id'];
        $data['beilv'] = $result['beilv'];
        $data['rate'] = $result['rate'];
        $data['pay_total'] = $pay_total;
        $data['baobi_total'] = $baobi_total;
        $data['createtime'] = time();

        $log_id = Db::name('gift_baobi_log')->insertGetId($data);
        if(!$log_id){
            return false;
        }

        //直接给用户钱
        if($baobi_total > 0){
            $rs_wallet = model('wallet')->lockChangeAccountRemain($user_id,$baobi_total,'+',0,'送礼物爆币'.$result['beilv'].'倍',21,'jewel');
            if($rs_wallet['status'] === false){
                return false;
            }

            //返回爆币金额
            return [
                'baobi_total' => $baobi_total,
                'baobi_beilv' => $result['beilv'],
            ];
        }

        //默认成功
        return true;
    }

    //概率获得算法
    private function getRand($proArr) {
        //概率数组的总概率精度
        $proSum = array_sum($proArr);

        $key = rand(1, $proSum);
//        echo $key;
        $result = 0;
        $now = 0;
        foreach ($proArr as $k=>$v)
        {
            $now = $now + $v;
            if($key<=$now)
            {
                $result = $k;
                break;
            }
        }
        unset ($proArr);
        return $result;
    }

    /**
     * 获取礼物列表
     */
    public function getGiftList() {
        $type = input('type',0);

        // 获取基本信息
        $where = ['is_show'=>1];
        if($type){
            $where['type'] = $type;
        }

        $giftList = Db::name('gift')->field('id,name,price,image,special')->where($where)->order("sort","asc")->select();
        $giftList = list_domain_image($giftList,['image','special']);
        $this->success("获取成功！",$giftList);
    }

    /**
     * 获取礼物类型
     */
    public function getGiftType() {
        // 获取基本信息
        $where = [];
        $where["is_show"] = 1;
        $giftList = $this->gifttypeModel->field("id,name")->where($where)->order("weight","desc")->select();
        $this->success("获取成功！",$giftList);
    }

    /**
     * 获取我的背包礼物
     */
    public function getMyBackGift() {

        $userid = input("user_id", $this->auth->id);
        // 分页搜索构建
        $list = \app\common\model\GiftBack::field("id,name,image,gif_image,value,sum(number) as number")
            ->where(["user_id"=>$userid,"is_use"=>0])
            ->group("gift_id")
            ->autopage()
            ->select();
        $this->success("获取成功！",$list);
    }


    /**
     * 获取我的礼物墙
     */
    public function getMyGiftWall() {
        $user_id = input("user_id", 0);

        $userid = $user_id ? $user_id : $this->auth->id;

        $list = Db::name('gift_user_party')->alias('a')
            ->join("gift g", "g.id = a.gift_id", "LEFT")
            ->field("a.gift_id,g.name,g.image,sum(number) as number")
            ->where(["a.user_to_id" => $userid,])
            ->group("a.gift_id")
            ->order('g.value desc')
            ->select();
        $list = list_domain_image($list,['image']);
        $this->success("获取成功！", $list);
    }


    /**
     * 获取我的收送礼明细
     */
    public function my_gift_log(){
        $user_id = $this->auth->id;
        $type    = input('type',1);

        $where = [];
        if($type == 1){
            $where['user_id'] = $user_id;//我送出
            $joinstr = 'gup.user_to_id = user.id';
        }else{
            $where['user_to_id'] = $user_id;//我收到
            $joinstr = 'gup.user_id = user.id';
        }

        $list = Db::name('gift_user_party')->alias('gup')
            ->join('user',$joinstr,'LEFT')->field('gup.*,user.nickname,user.avatar,user.gender')
            ->where($where)->order('id desc')->autopage()->select();
        $list = list_domain_image($list,['gift_gif_image','avatar']);

        $rs = [];
        if(empty($list)){
            $this->success(1,$rs);
        }

        foreach($list as $key => $val){
            if($type == 1){
                $remark = '送给Ta '.$val['gift_name'].'*'.$val['number'];
            }else{
                $remark = '送给你 '.$val['gift_name'].'*'.$val['number'];
            }
            $rs[] = [
                'id'         => $val['id'],
                'gift_image' => $val['gift_gif_image'],
                'createtime' => $val['createtime'],
                'remark'     => $remark,
                'nickname'    => $val['nickname'],
                'avatar'     => $val['avatar'],
                'gender'     => $val['gender'],
                'user_id'    => $type == 1 ? $val['user_to_id'] : $val['user_id'],
            ];
        }
        $this->success(1,$rs);
    }

    //聊天送礼物
    public function givegift_typing() {
        // 接口防并发
        if (!$this->apiLimit(1, 1000)) {
            $this->error(__('Operation frequently'));
        }

        $user_id = input('user_id');// 赠送对象
        $gift_id = input('gift_id');// 礼物ID
        $number  = input('number',1,'intval');//数量
        $is_back = input("is_back",0);// 是否背包赠送： 1=是,0=否

        if (!$user_id || !$gift_id || $number < 1 || !in_array($is_back,[0,1]) )
        {
            $this->error();
        }

        // 不可以赠送给自己
        if($this->auth->id == $user_id)
        {
            $this->error("不可以赠送给自己");
        }

        //被赠送人信息
        $touserinfo = Db::name('user')->where('id',$user_id)->find();
        if (!$touserinfo)
        {
            $this->error("不存在的用户");
        }

        $backGiftId = 0; //背包礼物表的 gift_id
        if($is_back == 1) {
            // 获取背包礼物信息
            $giftInfo = Db::name('gift_back')->field('gift_id')->where('id',$gift_id)->find();
            if(!$giftInfo){
                $this->error("背包礼物获取失败");
            }
            $backGiftId = $giftInfo['gift_id'];

            // 随机获取一个礼物
            $allCount = $number;
            $giftbackList = Db::name('gift_back')->field('id,value,name,image,gif_image,number')->where(["gift_id"=>$backGiftId,"user_id"=>$this->auth->id,'is_use'=>0])->limit($allCount)->order('id asc')->select();
            $giftinfo = isset($giftbackList[0]) ? $giftbackList[0] : [];
            $giftcount = 0;
            $giftList = [];

            if(!empty($giftbackList)) {
                foreach($giftbackList as $k => $v) {
                    $giftList[$k] = $v;

                    $giftcount += $v["number"];
                    if($giftcount >= $allCount) {
                        break;
                    }
                }
            }

            if($giftcount < $allCount)
            {
                $this->error("背包数量不足");
            }

            $giftvalue = $giftinfo["value"] * $number;
            $getValue  = $giftvalue;
        }else{
            // 获取礼物信息
            $giftinfo = Db::name('gift')->where('id',$gift_id)->find();
            if (!$giftinfo)
            {
                $this->error("请选择礼物");
            }
            $giftvalue = $giftinfo["value"] * $number;
            $getValue  = $giftvalue;


            // 判断当前用户余额
            $user_jewel = model('wallet')->getWallet($this->auth->id,'jewel');
            if($user_jewel < $giftvalue)
            {
                $this->error("您的金币余额不足");
            }
        }


        Db::startTrans();

        if($is_back == 1) {
            $b=0;
            foreach($giftList as $k => $v) {
                for($a=1;$a<=$v["number"];$a++) {
                    $b++;
                    $num = $v["number"] - $a;
                    if($num > 0) {
                        $res1 = Db::name('gift_back')->where(["id"=>$v["id"]])->setDec("number");
                    } else {
//                                $res1 = \app\common\model\GiftBack::update(["is_use"=>1,"use_time"=>time()],["id"=>$v["id"]]);
                        $res1 = Db::name('gift_back')->where(["id"=>$v["id"]])->delete();
                    }
                    if($b == $number) break;
                }

            }
            $res2 = true;
        }else{
            if($giftvalue > 0){

                // 扣除当前用户余额
                $wallet_rs = model('wallet')->lockChangeAccountRemain($this->auth->id,$giftvalue,'-',0,"赠送礼物：'" . $giftinfo["name"] . "',扣除" . $giftvalue . "金币！",3,'jewel');
                if($wallet_rs['status'] === false){
                    Db::rollback();
                    $this->error($wallet_rs['msg']);
                }

                // 添加赠送用户余额,放到计划任务里了
                /*$money_to_jewel = config('site.money_to_jewel');
                $gift_plat_scale = config('site.gift_plat_scale');

                $giftmoney = bcdiv($giftvalue,$money_to_jewel,2);

                $money = bcdiv(bcmul($giftmoney,100 - $gift_plat_scale,2),100,2);
                $wallet_rs = model('wallet')->lockChangeAccountRemain($user_id,$money,'+',0,'获得礼物:'.$giftinfo["name"],101,'money');
                if($wallet_rs['status'] === false){
                    Db::rollback();
                    $this->error($wallet_rs['msg']);
                }*/
            }
        }

        // 添加礼物赠送记录表
        $data = [
            'user_id'     => $this->auth->id,
            'user_to_id'  => $user_id,
            'gift_id'     => $backGiftId > 0 ? $backGiftId : $gift_id,
            'gift_give_type' => $is_back ? 1 : 2,
            'gift_name'   => $giftinfo['name'],
            'gift_gif_image'   => $giftinfo['image'],
            'number'      => $number,
            'price'       => $giftinfo['value'],
            'value'       => $giftvalue,
            'task_status' => 0,
            'createtime'  => time(),
        ];

        //每个礼物都要计算平台抽成和房主抽成
        $gift_plat_scale = config('site.gift_plat_scale');
        $data['platvalue']    = bcmul($gift_plat_scale/100  ,$data["value"],2);//平台抽成
        $data['getvalue']     = bcsub($data["value"] ,$data['platvalue'],2);//减去抽成剩余价值

        $log_id = Db::name('gift_user_party')->insertGetId($data);
        if(!$log_id){
            Db::rollback();
            $this->error('赠送失败');
        }



        Db::commit();
        $this->success('赠送成功');

    }
}