CalMerger/server.js

93 lines
2.5 KiB
JavaScript

import express from 'express';
import ical from 'ical';
import fs from 'fs';
import cron from 'node-cron';
import axios from 'axios';
const app = express();
app.use(express.json());
let mergedCalendarUrl = '';
app.get('/', (req, res) => {
res.sendFile('index.html', { root: '.' });
});
app.post('/merge', async (req, res) => {
const { cal1Url, cal1Prefix, cal2Url, cal2Prefix } = req.body;
try {
// Fetch calendar data from URLs
const cal1Data = await axios.get(cal1Url);
const cal2Data = await axios.get(cal2Url);
// Parse calendar data
const cal1 = ical.parseICS(cal1Data.data);
const cal2 = ical.parseICS(cal2Data.data);
const mergedCal = [];
// Merge calendars
Object.keys(cal1).forEach((key) => {
let event = cal1[key];
mergedCal.push({
start: event.start,
end: event.end,
summary: `${cal1Prefix} ${event.summary}`,
});
});
Object.keys(cal2).forEach((key) => {
let event = cal2[key];
mergedCal.push({
start: event.start,
end: event.end,
summary: `${cal2Prefix} ${event.summary}`,
});
});
// Save merged calendar to file
const filename = `merged-${Date.now()}.ics`;
let icalString = `BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
`;
mergedCal.forEach((event) => {
icalString += `DTSTART:${event.start}
DTEND:${event.end}
SUMMARY:${event.summary}
END:VEVENT
`;
});
icalString += `END:VCALENDAR`;
fs.writeFileSync(filename, icalString);
// Generate a unique URL for the merged calendar
const mergedCalendarUrl = `${req.protocol}://${req.get('host')}/${filename}`;
res.json({ url: mergedCalendarUrl });
} catch (error) {
console.error(error);
res.status(500).json({ error: 'Failed to merge calendars' });
}
});
// Serve the merged calendar file
app.get('/:filename', (req, res) => {
const filename = req.params.filename;
res.setHeader('Content-Type', 'text/calendar');
res.sendFile(filename, { root: '.' });
});
// Start the server
const port = 3000;
app.listen(port, () => {
console.log(`Server started on port ${port}`);
});
// Schedule a cron job to update the merged calendar every hour
cron.schedule('0 * * * *', () => {
console.log('Updating merged calendar...');
// TO DO: implement the logic to update the merged calendar
});