Scheduler-Backend/routes/appointments.js

import express from 'express';
import Appointment from "../schemas/appointmentSchema.js";
import Booking from "../schemas/bookingSchema.js";
import {isDueDatePassed, isValidEmail} from "../utils.js";
const router = express.Router();

router.post('/create', async function(req, res, next) {
    const { appointment, email, firstname, lastname } = req.body;

    const appointmentId = appointment;

    if (!appointmentId || !firstname || !lastname || !email) {
        res.status(400).json({ 'error': 'Parameters are incomplete' });
        return;
    }
    if (!isValidEmail(email)) {
        res.status(400).json({ 'error': 'Email is invalid' });
        return;
    }

    try {

        const existingAppointment = await Appointment.findOne({ _id: appointmentId });
        if (!existingAppointment) {
            return res.status(404).json({ message: 'appointment does not exist' });
        }

        if (isDueDatePassed(existingAppointment["dueDate"])) {
            return res.status(401).json({ message: 'appointment registration is closed' });
        }

        const duplicateBooking = await Booking.findOne({ appointment: appointmentId, email: email })
            .catch(err => {
                console.log(err);
            });

        if (duplicateBooking) {
            return res.status(404).json({ message: 'already registered' });
        }


        const newBooking = new Booking({ appointment, email, firstname, lastname });

        newBooking.save()
            .then(doc => res.json({ "success": true }))
            .catch(err => res.status(500).json({ 'error': err }));

    } catch (err) {
        // Handle errors
        console.error(err);
        return res.status(500).json({ error: 'Internal Server Error' });
    }
});

router.get('/', function (req, res, next) {
    const {appointmentId} = req.query;
    Appointment.findOne({ _id: appointmentId })
        .then(appointment => {
            res.json(appointment);
        })
        .catch(err => {
            res.status(404).json({'message': "Appointment not found"});
        });
});


export { router };