Initial commit: Penyerahan final Source code Tugas Akhir

lib/providers/cart_provider.dart

@@ -0,0 +1,62 @@
+import 'dart:io';
+
+import 'package:flutter/cupertino.dart';
+import 'package:initial_folder/models/cart_model.dart';
+import 'package:initial_folder/services/cart_service.dart';
+
+enum ResultState { loading, succes, failed }
+
+class CartProvider with ChangeNotifier {
+  final CartService cartService;
+  CartProvider({required this.cartService});
+  CartModel? _cartModel;
+  CartModel? get cartModel => _cartModel;
+  ResultState? _state;
+  ResultState? get state => _state;
+  set cartModel(CartModel? cartModel) {
+    _cartModel = cartModel;
+    notifyListeners();
+  }
+
+  Future<bool> addCart(_idCourse) async {
+    try {
+      _state = ResultState.loading;
+      notifyListeners();
+      bool cart = await cartService.addCart(_idCourse);
+      if (cart) {
+        _state = ResultState.succes;
+        notifyListeners();
+      } else if (!cart) {
+        _state = ResultState.failed;
+        notifyListeners();
+      }
+      return true;
+    } on SocketException {
+      return false;
+    } catch (e) {
+      _state = ResultState.failed;
+      notifyListeners();
+      print("Exceptions: $e");
+      return false;
+    }
+  }
+
+  Future<bool> deleteCart(_idCart) async {
+    try {
+      bool cart = await cartService.deleteCart(_idCart);
+      if (cart) {
+        _state = ResultState.succes;
+        notifyListeners();
+      } else if (!cart) {
+        _state = ResultState.failed;
+        notifyListeners();
+      }
+      return true;
+    } on SocketException {
+      return false;
+    } catch (e) {
+      print("Exceptions: $e");
+      return false;
+    }
+  }
+}