profiles provider

lib/services/profiles_provider.dart

@@ -0,0 +1,31 @@
+import 'package:flutter/material.dart';
+
+import '../models/profile.dart';
+import 'db_helper.dart';
+
+class Profiles extends ChangeNotifier {
+  final List<Profile> _profiles = [];
+  Stream<List<Map<String, dynamic>>>? _profilesStream;
+
+  List<Profile> get profiles {
+    if (_profilesStream == null) {
+      DbHelper.fetchProfiles().then((value) {
+        _profiles.clear();
+        _profiles.addAll(value);
+      });
+      _profilesStream = DbHelper.profilesStream;
+      _profilesStream!.listen(
+        (event) => _updateProfile(event),
+      );
+    }
+    return _profiles;
+  }
+
+  _updateProfile(List<Map<String, dynamic>> data) {
+    final List<Profile> profiles = data.map((e) => Profile.fromMap(e)).toList();
+
+    _profiles.clear();
+    _profiles.addAll(profiles);
+    notifyListeners();
+  }
+}