/*
 * GET home page.
 */
import express = require('express');
import RouterUtils from '../src/RouterUtils';
import Security from '../src/Security';
import { ILDAPManager } from './../src/ldapInterface';

const route_login = express.Router();
const route_logout = express.Router();

function ManageLogin(req: express.Request, res: express.Response, ldap: ILDAPManager|null, postData: { username: string, password: string }|null) {
	let session = Security.GetOrCreateSession(req);

	if (session.IsLoggedIn()) {
		RouterUtils.Redirect(res, "/");
		return;
	}
	let prevUsername = session.GetPreviousUsername() || "";

	if (postData && postData.username && postData.password && postData.username.length && postData.password.length && ldap) {
		prevUsername = postData.username;
		Security.TryLogin(ldap, postData.username, postData.password).then(user => {
			if (user) {
				session.Login(user, postData.username);
				RouterUtils.Redirect(res, "/");
				return;
			}
			res.render('login', { previousUsername: prevUsername, loginFail: true });
		}).catch(() => {
			res.render('login', { previousUsername: prevUsername, loginFail: true });
		});
	} else {
		res.render('login', { previousUsername: prevUsername, loginFail: false });
	}
}

route_login.get('/', (req: express.Request, res: express.Response) => {
	ManageLogin(req, res, null, null);
});
route_login.post('/', (req: express.Request, res: express.Response) => {
	req.ldapManager.GetInstance().then(ldap => {
		ManageLogin(req, res, ldap, { username: req.body.username, password: req.body.password });
	});
});
route_logout.get('/', (req: express.Request, res: express.Response) => {
	Security.GetSession(req)?.Logout();
	res.clearCookie("sessId");
	RouterUtils.Redirect(res, "/");
});

export { route_login };
export { route_logout };