const express = require('express');
const bodyParser = require('body-parser');
const crypto = require('crypto');
const cache = require('apicache').middleware;

const server = express();
server.use(bodyParser.urlencoded({ extended: true }));

function listen(port) {
    server.listen(port, () => console.info(`Listening on port ${port}!`));
}

function setUpRoutes(models, jwtFunctions, database) {
    server.get('/', cache('5 minutes'), (req, res) => res.sendFile(__dirname + "/html/email.html"))
    server.get('/success', cache('5 minutes'), (req, res) => res.sendFile(__dirname + "/html/email-success.html"))
    server.get('/unsubscribe', cache('5 minutes'), (req, res) => res.sendFile(__dirname + "/html/email-unsubscribe.html"))
    server.post('/', async (req, res, next) => {
        const name = req.body.name;
        const email = req.body.email;
        if (name && email) {
            const code = crypto.randomBytes(40).toString('hex').slice(0, 40)
            models.emails.create({"name": name, "address": email, "code": code})
            res.redirect('/success');
        } else {
            console.debug("Error with email submission")
        }
    })
    server.get('/unsubscribe/:code/check', async (req, res, next) => {
        res.sendFile(__dirname + "/html/email-confirm.html")
    })
    server.get('/unsubscribe/:code/confirm', async (req, res, next) => {
        await models.emails.destroy({ where: {"code": req.params.code}})
        res.redirect('/unsubscribe');
    })
    server.get('/css/:id', cache('5 minutes'), (req, res) => {
        res.sendFile(__dirname + "/css/" + req.params.id);
    });


    // Final 404 fallback
    server.use(function(req, res) {
        res.status(400);
        res.sendFile(__dirname + "/html/404.html");
    });
}

module.exports = {
    listen,
    setUpRoutes
};