<?php

namespace app\api\controller\app\exchange;

use app\common\controller\Api;

/**
 * 兑换码
 */
class Code extends Api
{

    protected $noNeedLogin = [];
    // 无需鉴权的接口,*表示全部
    protected $noNeedRight = ['*'];

    protected $model;

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

        $this->model = new \app\api\model\app\exchange\Code;

        $this->batchModel = new \app\api\model\app\exchange\Batch;
        $this->goodsModel = new \app\api\model\app\exchange\Goods;
    }

    /**
     * 兑换
     * @return void
     */
    public function exchange(){
        $code = $this->request->post('code');

        //判断code是否可用
        $codeInfo = $this->model->checkCode($code);
        if(!$codeInfo){
            $this->error("该兑换码暂不可用");
        }

        if(!$this->batchModel->checkLimit($this->auth->id,$codeInfo['batch_id'])){
            $this->error("已超出兑换次数限制");
        }

        //发放权益

        $this->model->exchange($this->auth->id,$codeInfo['batch_id'],$code);

        $this->success("兑换成功,可在我的订阅中查看兑换的课程");
    }

}