1 files changed, 25 insertions, 0 deletions
diff --git a/lib/data.dart b/lib/data.dart
index 5cd59ec..4091bb3 100644
--- a/lib/data.dart
+++ b/lib/data.dart
@@ -1,3 +1,5 @@
+import 'dart:async';
+
 import 'package:flutter/foundation.dart';
 
 class AppState with ChangeNotifier {
@@ -7,6 +9,29 @@ class AppState with ChangeNotifier {
       Contact(address: "Back Door", isOpen: false),
       Contact(address: "Garage Window", isOpen: true),
     ];
+
+    Timer? _timer;
+
+    AppState() {
+      _timer = Timer.periodic(const Duration(seconds: 1), (_) {
+        toggleFirstContact();
+      });
+    }
+
+    void toggleFirstContact() {
+      if (contacts.isEmpty) {
+        return;
+      }
+
+      contacts[0].isOpen = !contacts[0].isOpen;
+      notifyListeners();
+    }
+
+    @override
+    void dispose() {
+      _timer?.cancel();
+      super.dispose();
+    }
 }
 
 class Contact {