'use strict';
const Hex = require('crypto-js/enc-hex');
const SHA1 = require('crypto-js/sha1');
const MD5 = require('crypto-js/md5');
const moment = require('moment');
const uuid = require('uuid');

async function login (ctx, next) {
    // const transaction = await ctx.fs.dc.orm.transaction();
    try {
        const models = ctx.fs.dc.models;
        const params = ctx.request.body;


        let userRes = null
        if (params.username && params.password) {
            const password = Hex.stringify(MD5(params.password));
            userRes = await models.User.findOne({
                attributes: { exclude: ['password'] },
                where: {
                    username: params.username,
                    password: password
                },
            });
        }
        if (userRes) {
            if (userRes.forbidden) {
                throw '用户已禁用'
            } else {
                const token = uuid.v4();
                const userInfo = {
                    authorized: true,
                    ...userRes.dataValues,
                    token,
                };
                // 记录token
                const expiredDay = 7;
                const expired = moment().add(expiredDay, 'day').format('YYYY-MM-DD HH:mm:ss')
                await models.UserToken.create({
                    token: token,
                    userInfo: userInfo,
                    expired: expired
                });

                ctx.status = 200;
                ctx.body = userInfo;
            }
        } else {
            throw '账号或密码错误'
        }
        // await transaction.commit();
    } catch (error) {
        // await transaction.rollback();
        ctx.status = 400;
        ctx.body = {
            message: typeof error == 'string' ? error : '登录失败'
        }
    }
}

async function logout (ctx) {
    try {
        const models = ctx.fs.dc.models;
        const params = ctx.request.body;

        await models.UserToken.destroy({
            where: {
                token: params.token,
            }
        });

        ctx.status = 204;
    } catch (error) {
        ctx.fs.logger.error(`path: ${ctx.path}, error: ${error}`);
        ctx.status = 400;
        ctx.body = {
            message: typeof error == 'string' ? error : undefined
        }
    }
}

module.exports = {
    login,
    logout,
};