Initial commit: Penyerahan final Source code Tugas Akhir

lib/providers/carts_provider.dart

@@ -0,0 +1,78 @@
+import 'dart:async';
+import 'dart:developer';
+
+import 'package:flutter/material.dart';
+import 'package:initial_folder/models/carts_model.dart';
+import 'package:initial_folder/services/cart_service.dart';
+
+enum ResultState { Loading, NoData, HasData, Error }
+
+class CartsProvider with ChangeNotifier {
+  final CartService cartService;
+  CartsProvider({required this.cartService}) {
+    getCarts();
+  }
+
+  CartsModel? _cartsModel;
+  CartsModel? get result => _cartsModel;
+
+  ResultState? _state;
+  ResultState? get state => _state;
+
+  String _message = '';
+  String _finalPrice = '';
+
+  String get message => _message;
+  String get finalPrice => _finalPrice;
+
+  int _length = 0;
+  int get lenght => _length;
+
+  set lengthCarts(int v) {
+    _length = v;
+    notifyListeners();
+  }
+
+  List _data = [];
+  List get data => _data;
+
+  // StreamController<List<DataCartsModel>> dataStream = StreamController.broadcast();
+
+  set carts(CartsModel carts) {
+    _cartsModel = carts;
+    notifyListeners();
+  }
+
+  void clear() {
+    _length = 0;
+    notifyListeners();
+  }
+
+  Future<dynamic> getCarts() async {
+    try {
+      _state = ResultState.Loading;
+      _data = [];
+      notifyListeners();
+      CartsModel carts = await cartService.getCarts();
+      _length = carts.data.length;
+      notifyListeners();
+      if (carts.data.isEmpty) {
+        _state = ResultState.NoData;
+        notifyListeners();
+        return _message = 'Empty Data';
+      } else {
+        _data = carts.data.map((e) => e.courseId).toList();
+        _state = ResultState.HasData;
+        print(_data);
+        print("ini dari getcatsrs");
+        notifyListeners();
+        return _cartsModel = carts;
+      }
+    } catch (e) {
+      _state = ResultState.Error;
+      log('$e');
+      notifyListeners();
+      return _message = 'Error --> $e';
+    }
+  }
+}