add edit page and widgets

lib/controllers/details_controller.dart

@@ -1,10 +1,10 @@
 import 'package:get/get.dart';
 import '../model/filament_model.dart';
 import '../helpers/filament_repository.dart';
+import '../pages/edit_view.dart';
 
 class DetailsController extends GetxController {
   Rx<FilamentModel?> filament = Rx<FilamentModel?>(null);
-  final isEditing = false.obs;
 
   @override
   void onInit() {
@@ -14,19 +14,9 @@ class DetailsController extends GetxController {
     super.onInit();
   }
 
-  void toggleEdit() {
-    isEditing.value = !isEditing.value;
-  }
-
-  void updateFilament(FilamentModel updatedFilament) {
-    FilamentRepository.to.updateFilament(updatedFilament);
-    filament.value = updatedFilament;
-    isEditing.value = false;
-    Get.snackbar(
-      'Erfolg',
-      'Filament wurde aktualisiert',
-      snackPosition: SnackPosition.BOTTOM,
-    );
+  void onEditPressed() {
+    // Implement edit functionality here
+    Get.toNamed(EditPage.namedRoute, arguments: {'filament': filament.value});
   }
 
   void deleteFilament() {

lib/controllers/edit_controller.dart

@@ -0,0 +1,164 @@
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+import '../model/filament_model.dart';
+import '../helpers/filament_repository.dart';
+
+class EditController extends GetxController {
+  Rx<FilamentModel?> originalFilament = Rx<FilamentModel?>(null);
+  
+  // Form Controllers
+  final nameController = TextEditingController();
+  final typeController = TextEditingController();
+  final colorController = TextEditingController();
+  final weightController = TextEditingController();
+  final weightUsedController = TextEditingController();
+  final priceController = TextEditingController();
+  final manufacturerController = TextEditingController();
+  final purchaseDateController = TextEditingController();
+  final notesController = TextEditingController();
+  final piecesController = TextEditingController();
+  final printingTempController = TextEditingController();
+  final bedTempController = TextEditingController();
+
+  // Validation
+  final formKey = GlobalKey<FormState>();
+  final isSaving = false.obs;
+
+  // Available options
+  final List<String> filamentTypes = [
+    'PLA',
+    'ABS',
+    'PETG',
+    'TPU',
+    'ASA',
+    'Nylon',
+    'PC',
+    'PVA',
+  ];
+
+  final List<String> availableColors = [
+    'White',
+    'Black',
+    'Red',
+    'Blue',
+    'Green',
+    'Yellow',
+    'Orange',
+    'Purple',
+    'Pink',
+    'Grey',
+    'Brown',
+  ];
+
+  @override
+  void onInit() {
+    if (Get.arguments != null && Get.arguments['filament'] != null) {
+      originalFilament.value = Get.arguments['filament'];
+      _populateForm();
+    }
+    super.onInit();
+  }
+
+  void _populateForm() {
+    final filament = originalFilament.value;
+    if (filament != null) {
+      nameController.text = filament.name;
+      typeController.text = filament.type;
+      colorController.text = filament.color;
+      weightController.text = filament.weight.toString();
+      weightUsedController.text = filament.weightUsed.toString();
+      priceController.text = filament.price.toString();
+      manufacturerController.text = filament.manufacturer ?? '';
+      purchaseDateController.text = filament.purchaseDate ?? '';
+      notesController.text = filament.notes ?? '';
+      piecesController.text = filament.pices?.toString() ?? '';
+      printingTempController.text = filament.printingTemp?.toString() ?? '';
+      bedTempController.text = filament.bedTemp?.toString() ?? '';
+    }
+  }
+
+  Future<void> saveFilament() async {
+    if (!formKey.currentState!.validate()) return;
+
+    isSaving.value = true;
+
+    try {
+      final updatedFilament = FilamentModel(
+        id: originalFilament.value?.id ?? DateTime.now().millisecondsSinceEpoch.toString(),
+        name: nameController.text.trim(),
+        type: typeController.text.trim(),
+        color: colorController.text.trim(),
+        weight: double.tryParse(weightController.text) ?? 0,
+        weightUsed: double.tryParse(weightUsedController.text) ?? 0,
+        price: double.tryParse(priceController.text) ?? 0,
+        manufacturer: manufacturerController.text.trim().isEmpty 
+            ? null 
+            : manufacturerController.text.trim(),
+        purchaseDate: purchaseDateController.text.trim().isEmpty 
+            ? null 
+            : purchaseDateController.text.trim(),
+        notes: notesController.text.trim().isEmpty 
+            ? null 
+            : notesController.text.trim(),
+        pices: int.tryParse(piecesController.text),
+        printingTemp: int.tryParse(printingTempController.text),
+        bedTemp: int.tryParse(bedTempController.text),
+      );
+
+      bool success;
+      if (originalFilament.value != null) {
+        success = await FilamentRepository.to.updateFilament(updatedFilament);
+      } else {
+        success = await FilamentRepository.to.createFilament(updatedFilament);
+      }
+
+      if (success) {
+        Get.back(result: updatedFilament);
+        Get.snackbar(
+          'Erfolg',
+          originalFilament.value != null 
+              ? 'Filament wurde aktualisiert'
+              : 'Filament wurde erstellt',
+          snackPosition: SnackPosition.BOTTOM,
+          backgroundColor: Get.theme.colorScheme.primary.withAlpha(26),
+          colorText: Get.theme.colorScheme.primary,
+        );
+      } else {
+        Get.snackbar(
+          'Fehler',
+          'Filament konnte nicht gespeichert werden',
+          snackPosition: SnackPosition.BOTTOM,
+          backgroundColor: Colors.red.withAlpha(26),
+          colorText: Colors.red,
+        );
+      }
+    } catch (e) {
+      Get.snackbar(
+        'Fehler',
+        'Ein Fehler ist aufgetreten: $e',
+        snackPosition: SnackPosition.BOTTOM,
+        backgroundColor: Colors.red.withAlpha(26),
+        colorText: Colors.red,
+      );
+    } finally {
+      isSaving.value = false;
+    }
+  }
+
+  @override
+  void onClose() {
+    nameController.dispose();
+    typeController.dispose();
+    colorController.dispose();
+    weightController.dispose();
+    weightUsedController.dispose();
+    priceController.dispose();
+    manufacturerController.dispose();
+    purchaseDateController.dispose();
+    notesController.dispose();
+    piecesController.dispose();
+    printingTempController.dispose();
+    bedTempController.dispose();
+    super.onClose();
+  }
+}

lib/controllers/list_controller.dart

@@ -2,6 +2,7 @@ import 'package:get/get.dart';
 import '../../model/filament_model.dart';
 import '../../helpers/filament_repository.dart';
 import '../pages/details_view.dart';
+import '../pages/edit_view.dart';
 
 class ListController extends GetxController {
   final filamentList = <FilamentModel>[].obs;
@@ -35,7 +36,9 @@ class ListController extends GetxController {
     Get.toNamed(DetailsPage.namedRoute, arguments: {'filament': filament});
   }
 
-  void editFilament(FilamentModel filament) {}
+  void editFilament(FilamentModel filament) {
+    Get.toNamed(EditPage.namedRoute, arguments: {'filament': filament});
+  }
 
   void removeFilament(FilamentModel filament) {
     FilamentRepository.to.deleteFilament(filament.id);