import {RouteHandleFunction} from "../core/types";
import {login} from "../service/app";
import {UserModel} from "../../model";
import {getFromRedis, setToRedis} from "../service/redis";

export function encodeUserToken(user: UserModel) {
    if (user == null) throw new Error('user is null')
    // const token = JSON.stringify(user)
    const token = btoa(user.id + ':' + Date.now())
    setToRedis('app-report:user:' + token, JSON.stringify(user)).then(() => console.log('setToRedis success'));
    return token;
}

export function decodeUserToken(token: string) {
    // 将token转回UserModel对象数据
    // const user = decodeURIComponent(atob(token));
    console.log('decodeUserToken token==>app-report:user:', token)
    return getFromRedis<UserModel>('app-report:user:' + token)
    // return JSON.parse(user) as UserModel
}


export const loginHandler: RouteHandleFunction
    = async ({
                 body, res
             }) => {
    if (!body.username || !body.password) {
        // 没有用户名或者密码
        res.send({code: 2, message: '用户名和密码不能为空'})
        return;
    }
    const userinfo = await login(body.username, body.password);
    if (!userinfo) {
        res.send({code: 1, message: '用户名或密码错误'})
        return;
    }
    res.send({
        code: 0, data: {
            ...userinfo,
            token: encodeUserToken(userinfo)
        }
    })
}

export const getUserInfo: RouteHandleFunction =
    async ({headers,user, res}) => {
        const token = headers.authorization
        if (!token) {
            res.send({code: 403, message: '请先登录'})
            return;
        }
        if (!user) {
            res.send({code: 403, message: '请先登录'})
        }
        res.send({code: 0, message: 'success', data: user})
    }