var db = require("../db/index")

class Interceptor {
     adminPageInterceptor(req, res, next) {
        if (req.session.user == undefined) {
            res.json({
                status: 404,
                message: '您还未登录, 请访问 /admin/login 登录'
            })
        } else {
            next()
        }
    }

     async adminInterceptor(req, res, next) {
        if(req.headers.token != undefined) {
            var data = await db.query({
                sql: 'SELECT * from user where token = ?',
                par: [req.headers.token]
            });
            if( data.length != 0) {
                next()
            } else {
                res.json({
                    status: 500,
                    message: 'token已经失效，请重新登录'
                })
            }

        } else {
            res.json({
                status: 500,
                message: '请勿非法访问接口，缺少token'
            })
        }
    }
}

module.exports = new Interceptor()