tken/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 = [];
    protected $noNeedRight = '*';


    public function _initialize()
    {
        parent::_initialize();
    }

    /**
     * 获取礼物列表
     */
    public function getGiftList() {


        // 获取基本信息
        $where = ['is_show'=>1];

        if(!$this->is_vip($this->auth->id)){
            $where['is_vip'] = 0;
        }

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


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

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

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

    //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

        if (!$user_id || !$gift_id || $number < 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");
        }

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

        //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");
        }

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


        Db::startTrans();


        // 添加礼物赠送记录表
        $data = [
            'user_id'     => $this->auth->id,
            'user_to_id'  => $user_id,
            'gift_id'     => $giftinfo['id'],
            'gift_name'   => $giftinfo['name'],
            'number'      => $number,
            'price'       => $giftinfo['price'],
            'total_price' => $giftvalue,
            'createtime'  => time(),
        ];
        $log_id = Db::name('gift_user_typing')->insertGetId($data);
        if(!$log_id){
            Db::rollback();
            $this->error('赠送失败');
        }

        if($giftvalue > 0){

            // 扣除当前用户余额
            $wallet_rs = model('wallet')->lockChangeAccountRemain($this->auth->id,'gold',-$giftvalue,53,'赠送礼物:'.$giftinfo["name"],'gift_user_typing',$log_id);
            if($wallet_rs['status'] === false){
                Db::rollback();
                $this->error($wallet_rs['msg']);
            }

            // 添加赠送用户余额
            $money_to_gold = config('site.money_to_gold');
            $gift_plat_scale = config('site.gift_plat_scale');

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

            $money = bcdiv(bcmul($giftmoney,100 - $gift_plat_scale,2),100,2);
            $wallet_rs = model('wallet')->lockChangeAccountRemain($user_id,'money',$money,54,'获得礼物:'.$giftinfo["name"],'gift_user_typing',$log_id);
            if($wallet_rs['status'] === false){
                Db::rollback();
                $this->error($wallet_rs['msg']);
            }
        }



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

    }









}