Initial commit: Penyerahan final Source code Tugas Akhir

lib/providers/course_by_category_provider.dart

@@ -0,0 +1,85 @@
+import 'package:flutter/material.dart';
+import 'package:initial_folder/models/course_model.dart';
+import 'package:initial_folder/services/course_by_category_service.dart';
+
+enum ResultState { Loading, NoData, HasData, Error }
+
+class CourseByCategoryProvider with ChangeNotifier {
+  final CourseByCategoryService courseByCategoryService;
+  final String id;
+  final String subId;
+  final bool fetchBySubcategory;
+  CourseByCategoryProvider({
+    required this.courseByCategoryService,
+    required this.id,
+    required this.subId,
+    this.fetchBySubcategory = false,
+  }) {
+    if (fetchBySubcategory) {
+      getCourseByCategory(id, subId);
+    } else {
+      getCourseOnlyCategory(id);
+    }
+  }
+  List<CourseModel> _courseByCategory = [];
+
+  ResultState? _state;
+
+  String _message = '';
+
+  List<CourseModel> get result => _courseByCategory;
+
+  ResultState? get state => _state;
+
+  String get message => _message;
+
+  set courseByCategory(List<CourseModel> courseByCategory) {
+    _courseByCategory = courseByCategory;
+    notifyListeners();
+  }
+
+  Future<dynamic> getCourseByCategory(_id, subId) async {
+    try {
+      _state = ResultState.Loading;
+      notifyListeners();
+      List<CourseModel> courseByCategory =
+          await courseByCategoryService.getCourseCategoryAndSub(_id, subId);
+      if (courseByCategory.isEmpty) {
+        _state = ResultState.NoData;
+        notifyListeners();
+        return _message = 'Empty Data';
+      } else {
+        _state = ResultState.HasData;
+        print(_courseByCategory);
+        notifyListeners();
+        return _courseByCategory = courseByCategory;
+      }
+    } catch (e) {
+      _state = ResultState.Error;
+      notifyListeners();
+      return _message = 'Error --> $e';
+    }
+  }
+
+  Future<dynamic> getCourseOnlyCategory(_id) async {
+    try {
+      _state = ResultState.Loading;
+      notifyListeners();
+      List<CourseModel> courseByCategory =
+          await courseByCategoryService.getCourseOnlyCategory(_id);
+      if (courseByCategory.isEmpty) {
+        _state = ResultState.NoData;
+        notifyListeners();
+        return _message = 'Empty Data';
+      } else {
+        _state = ResultState.HasData;
+        notifyListeners();
+        return _courseByCategory = courseByCategory;
+      }
+    } catch (e) {
+      _state = ResultState.Error;
+      notifyListeners();
+      return _message = 'Error --> $e';
+    }
+  }
+}