Enhance video playback cubit resilience and K-12 curriculum flow

2026-08-31 17:46:03 +03:00
parent 78b703f625
commit d8a50bb105
34 changed files with 2934 additions and 75 deletions
@@ -0,0 +1,112 @@
+import 'package:flutter_bloc/flutter_bloc.dart';
+import '../../core/utils/app_logger.dart';
+import '../../data/models/subject_model.dart';
+import '../../data/repositories/curriculum_repository.dart';
+
+abstract class CurriculumState {}
+
+class CurriculumInitial extends CurriculumState {}
+class CurriculumLoading extends CurriculumState {}
+
+class CurriculumLoaded extends CurriculumState {
+  final List<SubjectModel> subjects;
+  final List<SubjectModel> filteredSubjects;
+  final List<GradeLevelModel> availableGrades;
+  final String selectedGrade;
+  final String selectedStream;
+  final String searchQuery;
+  final SubjectModel? activeSubject;
+
+  CurriculumLoaded({
+    required this.subjects,
+    required this.filteredSubjects,
+    this.availableGrades = const [],
+    this.selectedGrade = 'grade_10',
+    this.selectedStream = 'scientific',
+    this.searchQuery = '',
+    this.activeSubject,
+  });
+
+  CurriculumLoaded copyWith({
+    List<SubjectModel>? subjects,
+    List<SubjectModel>? filteredSubjects,
+    List<GradeLevelModel>? availableGrades,
+    String? selectedGrade,
+    String? selectedStream,
+    String? searchQuery,
+    SubjectModel? activeSubject,
+  }) {
+    return CurriculumLoaded(
+      subjects: subjects ?? this.subjects,
+      filteredSubjects: filteredSubjects ?? this.filteredSubjects,
+      availableGrades: availableGrades ?? this.availableGrades,
+      selectedGrade: selectedGrade ?? this.selectedGrade,
+      selectedStream: selectedStream ?? this.selectedStream,
+      searchQuery: searchQuery ?? this.searchQuery,
+      activeSubject: activeSubject ?? this.activeSubject,
+    );
+  }
+}
+
+class CurriculumError extends CurriculumState {
+  final String message;
+  CurriculumError(this.message);
+}
+
+class CurriculumCubit extends Cubit<CurriculumState> {
+  final CurriculumRepository _repo;
+
+  CurriculumCubit({CurriculumRepository? repo})
+      : _repo = repo ?? CurriculumRepository(),
+        super(CurriculumInitial());
+
+  Future<void> fetchSubjects({String gradeLevel = 'grade_10', String stream = 'scientific'}) async {
+    AppLogger.log('CurriculumCubit: Loading subjects for Grade: $gradeLevel ($stream)...', tag: 'CURRICULUM_CUBIT');
+    emit(CurriculumLoading());
+    try {
+      final grades = await _repo.getAvailableGrades();
+      final subjects = await _repo.getSubjects(gradeLevel: gradeLevel, stream: stream);
+      emit(CurriculumLoaded(
+        subjects: subjects,
+        filteredSubjects: subjects,
+        availableGrades: grades,
+        selectedGrade: gradeLevel,
+        selectedStream: stream,
+      ));
+    } catch (e) {
+      AppLogger.error('Failed to load curriculum subjects', error: e, tag: 'CURRICULUM_CUBIT');
+      emit(CurriculumError(e.toString()));
+    }
+  }
+
+  void searchSubjects(String query) {
+    final currentState = state;
+    if (currentState is CurriculumLoaded) {
+      final clean = query.trim().toLowerCase();
+      if (clean.isEmpty) {
+        emit(currentState.copyWith(filteredSubjects: currentState.subjects, searchQuery: ''));
+        return;
+      }
+
+      final filtered = currentState.subjects.where((s) {
+        return s.title.toLowerCase().contains(clean) ||
+               s.englishTitle.toLowerCase().contains(clean) ||
+               s.id.toLowerCase().contains(clean);
+      }).toList();
+
+      emit(currentState.copyWith(filteredSubjects: filtered, searchQuery: query));
+    }
+  }
+
+  void selectGrade(String gradeKey) {
+    AppLogger.log('Switching active grade to $gradeKey...', tag: 'CURRICULUM_CUBIT');
+    fetchSubjects(gradeLevel: gradeKey);
+  }
+
+  void openSubject(SubjectModel subject) {
+    final currentState = state;
+    if (currentState is CurriculumLoaded) {
+      emit(currentState.copyWith(activeSubject: subject));
+    }
+  }
+}