/*
 * @Author:尹鹏孝
 * @Date: 2021-08-31 13:28:48
 * @LastEditTime: 2021-09-03 08:14:57
 * @LastEditors: Please set LastEditors
 * @Description: 捕获异常生成返回的接口
 * @FilePath: \koa2-test-api\src\middlewares\exception.js
 */
const catchError = async (ctx, next) => {
    try {
        await next();
    } catch (error) {
        if (error.errorCode) {

            ctx.body = {
                msg: error.msg,
                errorCode: error.errorCode,
                request: `${ctx.method} ${ctx.path}`
            }
        } else {
            //对于未知的异常，采用特别处理
            console.log(error.originalError);
            if (error.originalError == 'JsonWebTokenError: invalid token') {
                error.errorCode = 401;
                ctx.body = {
                    errorCode: error.errorCode,
                    msg: 'token解析失效，请重新登录',
                };
            } else if (error.originalError == 'TokenExpiredError: jwt expired') {
                error.errorCode = 401;
                ctx.body = {
                    errorCode: error.errorCode,
                    msg: 'token失效，请重新登录',
                };
            } else {
                ctx.body = {
                    msg: '未知异常，请联系管理员010-99999999',
                };
            }

        }
    }
}


module.exports = catchError