v0.9.21 added a cleanup routibe for deleted images.

backend/src/routes/groups.js

@@ -1,4 +1,5 @@
 const express = require('express');
+const fs = require('fs');
 const router = express.Router();
 const { getDb } = require('../models/db');
 const { authMiddleware, adminMiddleware } = require('../middleware/auth');
@@ -18,6 +19,17 @@ function emitGroupNew(io, groupId) {
   }
 }
 
+// Delete an uploaded image file from disk
+function deleteImageFile(imageUrl) {
+  if (!imageUrl) return;
+  try {
+    const filePath = '/app' + imageUrl;
+    if (fs.existsSync(filePath)) fs.unlinkSync(filePath);
+  } catch (e) {
+    console.warn('[Groups] Could not delete image file:', e.message);
+  }
+}
+
 // Helper: emit group:deleted to all members
 function emitGroupDeleted(io, groupId, members) {
   for (const uid of members) {
@@ -369,8 +381,14 @@ router.delete('/:id', authMiddleware, (req, res) => {
     all.forEach(u => { if (!members.includes(u.id)) members.push(u.id); });
   }
 
+  // Collect all image files for this group before deleting
+  const imageMessages = db.prepare("SELECT image_url FROM messages WHERE group_id = ? AND image_url IS NOT NULL").all(group.id);
+
   db.prepare('DELETE FROM groups WHERE id = ?').run(group.id);
 
+  // Delete image files from disk after DB delete
+  for (const msg of imageMessages) deleteImageFile(msg.image_url);
+
   // Notify all affected users
   emitGroupDeleted(io, group.id, members);