From 72605aed21e63dc8626f3ec367eb91155a52a7a6 Mon Sep 17 00:00:00 2001
From: MarekWo <mwojtaszek@gmail.com>
Date: Tue, 30 Dec 2025 09:21:30 +0100
Subject: [PATCH] fix(ui): Add null check for cleanupBtn to prevent JS errors
 on main page

The cleanupBtn element only exists on the contact management page,
not on the main chat page. This was causing JavaScript to crash
with 'cannot access property addEventListener of null' error,
preventing messages from loading.

Added null check before attaching event listener.
---
 app/static/js/app.js | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/app/static/js/app.js b/app/static/js/app.js
index 925816c..e2367b2 100644
--- a/app/static/js/app.js
+++ b/app/static/js/app.js
@@ -99,10 +99,13 @@ function setupEventListeners() {
         }
     });
 
-    // Cleanup contacts button
-    document.getElementById('cleanupBtn').addEventListener('click', function() {
-        cleanupContacts();
-    });
+    // Cleanup contacts button (only exists on contact management page)
+    const cleanupBtn = document.getElementById('cleanupBtn');
+    if (cleanupBtn) {
+        cleanupBtn.addEventListener('click', function() {
+            cleanupContacts();
+        });
+    }
 
     // Track user scrolling
     const container = document.getElementById('messagesContainer');