Initial commit: Penyerahan final Source code Tugas Akhir

lib/providers/latest_course_provider.dart

@@ -0,0 +1,50 @@
+import 'package:flutter/material.dart';
+import 'package:initial_folder/models/course_model.dart';
+import 'package:initial_folder/services/course_service.dart';
+
+enum ResultState { Loading, NoData, HasData, Error }
+
+class LatestCourseProvider with ChangeNotifier {
+  final CourseService courseService;
+  LatestCourseProvider({required this.courseService}) {
+    getLatestCourse();
+  }
+
+  List<CourseModel> _course = [];
+
+  ResultState? _state;
+
+  String _message = '';
+
+  List<CourseModel> get result => _course;
+
+  ResultState? get state => _state;
+
+  String get message => _message;
+
+  set course(List<CourseModel> course) {
+    _course = course;
+    notifyListeners();
+  }
+
+  Future<dynamic> getLatestCourse() async {
+    try {
+      _state = ResultState.Loading;
+      notifyListeners();
+      List<CourseModel> course = await courseService.getLatestCourse();
+      if (course.isEmpty) {
+        _state = ResultState.NoData;
+        notifyListeners();
+        return _message = 'Empty Data';
+      } else {
+        _state = ResultState.HasData;
+        notifyListeners();
+        return _course = course;
+      }
+    } catch (e) {
+      _state = ResultState.Error;
+      notifyListeners();
+      return _message = 'Error --> $e';
+    }
+  }
+}