server.js

const express = require('express');
const path = require('path');
const fs = require("fs");

const app = express();
const PORT = 3000;

app.use(express.urlencoded({ extended: true }));
app.use(express.json());

app.get('/', (req, res) => res.sendFile(path.join(__dirname, 'home.html')));
app.get('/tables', (req, res) => res.sendFile(path.join(__dirname, '/tables.html')));
app.get('/reserve', (req, res) => res.sendFile(path.join(__dirname, '/reserve.html')));

// app.get('/api/tables', (req, res) => res.json(reservation));
app.get('/api/waitlist', (req, res) => res.json(waitList));


app.get("/api/tables", (req, res) => {
    fs.readFile(__dirname + "/db/db.json", 'utf8', (err, data) => {
        if (err) {
            return console.log(err);
        }
        console.log(data);
        res.json(JSON.parse(data));
    });
});




const reservation = [
    {
        customerID: "123",
        customerName: "kemal",
        customerEmail: "kemal@asd",
        phoneNumber: "6132321213"
    }
]

const waitList = [
    {
        customerID: "2223",
        customerName: "tatyana",
        customerEmail: "kasdasdsasdl@asd",
        phoneNumber: "613232231123211231231321213"
    }
]



app.post('/api/tables', (req, res) => {
    const newReservation = req.body;

    if (reservation.length >= 5) {
        app.post('/api/waitlist', (req, res) => {
            console.log(newReservation);
          
            waitList.push(newReservation);
            res.json(newReservation);
        });
    } else {
        console.log(newReservation);
        const reserveList = JSON.parse(fs.readFileSync("./db/db.json", "utf8"));
        reserveList.push(newReservation);
        fs.writeFileSync("./db/db.json", JSON.stringify(reserveList));
        res.json(reserveList);
    }
});



app.get("/api/tables", (req, res) => {
    fs.readFile(__dirname + "/db/db.json", 'utf8', (err, data) => {
        if (err) {
            return console.log(err);
        }
        console.log(data);
        res.json(JSON.parse(data));
    });
});





app.listen(PORT, () => console.log(`App listening on PORT ${PORT}`));