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cron.js
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cron.js
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import express from "express"
import cron from"node-cron"
// import nodemailer from "nodemailer"
import dotenv from"dotenv";
dotenv.config();
const app = express();
const port = process.env.PORT || 3000;
// Email configuration
const transporter = nodemailer.createTransport({
service: 'gmail',
auth: {
user: process.env.EMAIL,
pass: process.env.PASSWORD
}
});
// Function to send email
const sendReminderEmail = (to, subject, text) => {
const mailOptions = {
from: process.env.EMAIL,
to,
subject,
text
};
transporter.sendMail(mailOptions, (error, info) => {
if (error) {
return console.log(error);
}
console.log('Email sent: ' + info.response);
});
};
// Dummy data for demonstration
const appointments = [
{
email: 'user1@example.com',
date: new Date(new Date().getTime() + 24 * 60 * 60 * 1000), // 1 day from now
service: 'Car Maintenance'
},
{
email: 'user2@example.com',
date: new Date(new Date().getTime() + 48 * 60 * 60 * 1000), // 2 days from now
service: 'Dental Checkup'
}
];
// Schedule task to run every day at 9 AM
cron.schedule('0 9 * * *', () => {
console.log('Running daily reminder task');
const now = new Date();
appointments.forEach(appointment => {
const timeDiff = appointment.date - now;
// Check if appointment is within the next 24 hours
if (timeDiff > 0 && timeDiff <= 24 * 60 * 60 * 1000) {
sendReminderEmail(
appointment.email,
'Service Reminder',
`This is a reminder for your upcoming ${appointment.service} appointment scheduled for ${appointment.date}`
);
}
});
});