<?php

namespace app\api\model\app\exchange;

use think\Model;
use think\Db;
use app\api\model\app\agent\Level;
class Batch extends Model
{


    // 表名
    protected $name = 'app_exchange_batch';


    // 自动写入时间戳字段
    protected $autoWriteTimestamp = 'integer';

    // 定义时间戳字段名
    protected $createTime = 'createtime';
    protected $updateTime = false;
    protected $deleteTime = false;

    // 追加属性
    protected $append = [
    ];


    /**
     * 检查是否超出批次兑换限制
     * @param $userId
     * @param $code
     * @return void true=未超限制；false=超出限制
     */
    public function checkLimit($userId,$batchId){

        $batchInfo = self::where([
            'id'=>$batchId
        ])->find();

        if(!$batchInfo){
            return false;
        }

        //不限制
        if(!$batchInfo['use_limit']){
            return true;
        }

        $exchangeCount = \app\api\model\app\exchange\UseLog::getExchangeCount($userId,$batchId);

        if($exchangeCount < $batchInfo['use_limit']){
            return true;
        }

        return false;
    }
}