server.js

@@ -91,11 +91,40 @@ END:VEVENT
         });
         icalString += `END:VCALENDAR`;
         fs.writeFileSync(`${MERGED_CALENDARS_DIR}/${filename}`, icalString);
-         
+
+
+        // Generate URL for the merged calendar
+        const mergedCalendarUrl = `${req.protocol}://${req.get('host')}/calendar/${calendarId}`;
+       
         // Save the user input and generated ID in calendars.json file
         saveCalendarData(calendarId, calendars);
 
-        res.json({ url: `${req.protocol}://${req.get('host')}/calendar/${calendarId}` });
+        // Save the user input in a calendars.json file
+        const calendarsFile = 'calendars.json';
+        let calendarsData = {};
+        try {
+            calendarsData = JSON.parse(fs.readFileSync(calendarsFile, 'utf8'));
+        } catch (error) {
+            console.error(error);
+        }
+        calendars.forEach((calendar) => {
+            let linkGroup = calendarsData.linkGroups.find((group) => group.name === calendar.linkGroupName);
+            if (!linkGroup) {
+                linkGroup = {
+                    name: calendar.linkGroupName,
+                    links: []
+                };
+                calendarsData.linkGroups.push(linkGroup);
+            }
+            linkGroup.links.push({
+                url: calendar.url,
+                prefix: calendar.prefix,
+                overrideSummary: calendar.override
+            });
+        });
+        fs.writeFileSync(calendarsFile, JSON.stringify(calendarsData, null, 2));
+
+        res.json({ url: mergedCalendarUrl });
     } catch (error) {
         console.error(error);
         res.status(500).json({ error: 'Failed to merge calendars' });
@@ -121,14 +150,25 @@ function saveCalendarData(calendarId, calendars) {
     });
     fs.writeFileSync(CALENDARS_FILE, JSON.stringify(calendarsData, null, 2));
 }
+// 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: '.' });
+});
 
 // Function to update the merged calendar
-async function updateMergedCalendars(){
+async function updateMergedCalendar(){
     try {
         // Load calendars data from calendars.json file
         const calendarsData = JSON.parse(fs.readFileSync(CALENDARS_FILE, 'utf8'));
         
-        // Fetch calendar data for each merged calendar
+        // Check if calendarsData is defined and has the expected structure
+    if (!calendarsData || !calendarsData.linkGroups) {
+        throw new Error('Invalid calendars data structure');
+      }
+
+        // Fetch calendar data for each link group
         for (const mergedCalendar of calendarsData.mergedCalendars) {
             const promises = mergedCalendar.calendars.map((calendar) => {
                 return axios.get(calendar.url)
@@ -189,7 +229,7 @@ END:VEVENT
     icalString += `END:VCALENDAR`;
     
    // Store the merged calendar URL in a file
-    fs.writeFileSync(`${MERGED_CALENDARS_DIR}/${filename}`, icalString);
+   fs.writeFileSync(`${MERGED_CALENDARS_DIR}/${filename}`, icalString);
 
     console.log(`Merged calendar updated: ${mergedCalendarUrl}`);
 
@@ -202,7 +242,7 @@ END:VEVENT
 // Schedule a cron job to update the merged calendar every hour
 cron.schedule('*/3 * * * *', () => {
     console.log('Updating merged calendar...');
-    updateMergedCalendars();
+    updateMergedCalendar();
 });
 
 // Start the server