import { importRouters } from "../lib.js";
import multer from "multer";
import cookieParser from "cookie-parser"; 
import { initDb } from "../db.js";

let db = await initDb();

const upload = multer({ dest: 'uploads/' });

const aliases = {
    '/': '/walls/get/home'
};

const routers = {
    '/you': './routes/you.js',
    '/api/form/you': './routes/youApi.js'
}

function doAliases(app) {
    for (let alias in aliases) {
        app.all(alias, (req, res, next) => {
            res.redirect(aliases[alias])
        })
    }

}

async function auther(req, res, next) {
    let body = { ...req.cookies, ...req.body };

    let { token } = body;

    let match = await db.all('SELECT * FROM token WHERE token = ?', [
        token || 'blah'
    ]);

    let username = match[0] ? match[0].username : '!nobody';

    let valid = await db.all('SELECT * FROM auth WHERE username = ?', [
        username
    ]);

    res.auth = {
        username,
        valid: valid[0],
        rootUrl: process.env.URL,
    };

    next();
}

function initr(req, res, next) {
    let headerCtx = [
        { link: '/walls/get/home', icon: '/icon.svg', name: 'DervNet' },
        { link: '/walls/list', icon: '/walls.svg', name: 'Explore' },
        { link: '/you/logout', icon: '/logout.svg', name: 'Leave' } // fix icon
    ];

    if (!res.auth || !res.auth.valid) {
        headerCtx = [
            { link: '/walls/get/home', icon: '/icon.svg', name: 'DervNet' },
            { link: '/you/login', icon: '/walls.svg', name: 'Log in' },
            { link: '/you/new', icon: '/walls.svg', name: 'Join' }
        ];
    }

    res.ctx = {
        mainPage: '404.ejs',
        mainCtx: {},
        headerCtx
    };
    next();
}

async function doInit(app) {
    app.use(cookieParser());

    app.use(auther)

    app.use(initr)

    app.use('/api/form', upload.none());
    app.use('/api/file', upload.single('file'));

    doAliases(app);

    await importRouters(app, routers);

    app.use('/api', (req, res, next) => {
        res.send(res.api);
    })

    app.use((req, res, next) => {
        res.render('root.ejs', res.ctx)
    })
}

export { doInit };