add service for appwrite

lib/controllers/home_controller.dart

@@ -1,11 +1,14 @@
 import 'package:get/get.dart';
 
 import '../models/home_model.dart';
+import '../services/appwrite_service.dart';
 import '../widgets/add_weight_dialog.dart';
 
 class HomeController extends GetxController {
+  final isLoggedIn = false.obs;
   final isloading = false.obs;
   final List<WeightModel> weights = <WeightModel>[].obs;
+  final appwriteService = AppwriteService();
 
   @override
   void onInit() {
@@ -19,26 +22,48 @@ class HomeController extends GetxController {
   @override
   void onClose() {}
 
-  void _loadDataList() {
+  void _loadDataList() async {
     isloading.value = true;
     if (weights.isNotEmpty) {
       weights.clear();
     }
-    // Simulate loading data from a database or API
-    weights.assignAll(WeightModel.sampleData);
+    isLoggedIn.value = await appwriteService.login();
+    if (isLoggedIn.value) {
+      final documents = await appwriteService.getDocumentsFromCollection();
+      if (documents.isEmpty) {
+        print(
+          'Keine Dokumente gefunden. Stelle sicher, dass die Collection Einträge enthält.',
+        );
+      } else {
+        print(
+          'Dokumente erfolgreich geladen: ${documents.length} Einträge gefunden.',
+        );
+        weights.assignAll(
+          documents.map((doc) => WeightModel.fromJson(doc.data)),
+        );
+      }
+    } else {
+      print('Fehler beim Einloggen. Keine Daten geladen.');
+    }
     isloading.value = false;
     update();
   }
 
   void addWeightEntry(WeightModel entry) {
     weights.add(entry);
+    var map = WeightModel.toMapForAppwrite(entry);
+    appwriteService.createDocumentInCollection(map);
     update();
   }
 
   void editWeightEntry(WeightModel updated) {
-    final idx = weights.indexWhere((w) => w.id == updated.id);
+    final idx = weights.indexWhere(
+      (w) => w.documentId == updated.documentId && w.date == updated.date,
+    );
     if (idx != -1) {
       weights[idx] = updated;
+      var map = WeightModel.toMapForAppwrite(updated);
+      appwriteService.updateDocumentInCollection(updated.documentId, map);
       update();
     }
   }
@@ -67,8 +92,9 @@ class HomeController extends GetxController {
 
   // ── Dialog-Logik ─────────────────────────────────────────────────────────
 
-  Future<void> openAddDialog(String personName) async {
+  Future<void> openAddDialog(String personName, String userId) async {
     final entry = await AddWeightDialog.show(
+      userId: userId,
       personName: personName,
       lastWeight: getLastWeight(personName),
     );