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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| import 'package:flutter/material.dart'; | ||
| import 'package:gocast_mobile/base/networking/api/gocast/api_v2.pbgrpc.dart'; | ||
| import 'package:gocast_mobile/models/error/error_model.dart'; | ||
|
|
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| @immutable | ||
| class PinnedCourseState { | ||
| final bool? isLoading; | ||
| final List<Course>? userPinned; | ||
| final AppError? error; | ||
| final List<Course>? displayedPinnedCourses; | ||
| final List<Semester>? semesters; | ||
| final String? selectedSemester; | ||
| final List<String>? semestersAsString; | ||
| final Semester? current; | ||
| final String? currentAsString; | ||
|
|
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| const PinnedCourseState({ | ||
| this.isLoading = false, | ||
| this.userPinned, | ||
| this.error, | ||
| this.displayedPinnedCourses, | ||
| this.semesters, | ||
| this.selectedSemester = 'All', | ||
| this.semestersAsString, | ||
| this.current, | ||
| this.currentAsString, | ||
| }); | ||
|
|
||
| PinnedCourseState copyWith({ | ||
| bool? isLoading, | ||
| List<Course>? userPinned, | ||
| AppError? error, | ||
| List<Course>? displayedPinnedCourses, | ||
| List<Semester>? semesters, | ||
| String? selectedSemester, | ||
| List<String>? semestersAsString, | ||
| Semester? current, | ||
| String? currentAsString, | ||
| }) { | ||
| return PinnedCourseState( | ||
| isLoading: isLoading ?? this.isLoading, | ||
| userPinned: userPinned ?? this.userPinned, | ||
| error: error ?? this.error, | ||
| displayedPinnedCourses: displayedPinnedCourses ?? this.displayedPinnedCourses, | ||
| semesters: semesters ?? this.semesters, | ||
| selectedSemester: selectedSemester ?? this.selectedSemester, | ||
| semestersAsString: semestersAsString ?? this.semestersAsString, | ||
| current: current ?? this.current, | ||
| currentAsString: currentAsString ?? this.currentAsString, | ||
| ); | ||
| } | ||
|
|
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| PinnedCourseState clearError() { | ||
| return PinnedCourseState( | ||
| isLoading: isLoading, | ||
| userPinned: userPinned, | ||
| error: null, | ||
| displayedPinnedCourses: displayedPinnedCourses, | ||
| semesters: semesters, | ||
| selectedSemester: selectedSemester, | ||
| semestersAsString: semestersAsString, | ||
| current: current, | ||
| currentAsString: currentAsString, | ||
| ); | ||
| } | ||
|
|
||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| import 'package:flutter_riverpod/flutter_riverpod.dart'; | ||
| import 'package:gocast_mobile/base/networking/api/gocast/api_v2.pb.dart'; | ||
| import 'package:gocast_mobile/base/networking/api/handler/grpc_handler.dart'; | ||
| import 'package:gocast_mobile/base/networking/api/handler/pinned_handler.dart'; | ||
| import 'package:gocast_mobile/models/course/pinned_course_state_model.dart'; | ||
| import 'package:gocast_mobile/models/error/error_model.dart'; | ||
| import 'package:gocast_mobile/utils/sort_utils.dart'; | ||
| import 'package:logger/logger.dart'; | ||
|
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| class PinnedViewModel extends StateNotifier<PinnedCourseState> { | ||
| final Logger _logger = Logger(); | ||
|
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| final GrpcHandler _grpcHandler; | ||
|
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| PinnedViewModel(this._grpcHandler) : super(const PinnedCourseState()); | ||
|
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| Future<void> fetchUserPinned() async { | ||
| state = state.copyWith(isLoading: true); | ||
| try { | ||
| var courses = await PinnedHandler(_grpcHandler).fetchUserPinned(); | ||
| state = state.copyWith(userPinned: courses, isLoading: false); | ||
| setUpDisplayedPinnedCourses(state.userPinned ?? []); | ||
| } catch (e) { | ||
| _logger.e(e); | ||
| state = state.copyWith(error: e as AppError, isLoading: false); | ||
| } | ||
| } | ||
|
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|
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| Future<bool> pinCourse(int courseID) async { | ||
| state = state.copyWith(isLoading: true); | ||
| try { | ||
| bool success = await PinnedHandler(_grpcHandler).pinCourse(courseID); | ||
| if (success) { | ||
| await fetchUserPinned(); | ||
| } else { | ||
| _logger.e('Failed to pin course'); | ||
| } | ||
| state = state.copyWith(isLoading: false); | ||
| return success; | ||
| } catch (e) { | ||
| _logger.e('Error pinning course: $e'); | ||
| state = state.copyWith(error: e as AppError, isLoading: false); | ||
| return false; | ||
| } | ||
| } | ||
|
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|
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| Future<bool> unpinCourse(int courseID) async { | ||
| state = state.copyWith(isLoading: true); | ||
| try { | ||
| bool success = await PinnedHandler(_grpcHandler).unpinCourse(courseID); | ||
| if (success) { | ||
| await fetchUserPinned(); | ||
| _logger.i('Course unpinned successfully'); | ||
| } else { | ||
| _logger.e('Failed to unpin course'); | ||
| } | ||
| state = state.copyWith(isLoading: false); | ||
| return success; | ||
| } catch (e) { | ||
| state = state.copyWith(error: e as AppError, isLoading: false); | ||
| return false; | ||
| } | ||
| } | ||
|
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| void updateSelectedPinnedSemester(String? semester, List<Course> allCourses) { | ||
| state = state.copyWith(selectedSemester: semester); | ||
| updatedDisplayedPinnedCourses( | ||
| CourseUtils.filterCoursesBySemester( | ||
| allCourses, | ||
| state.selectedSemester ?? 'All', | ||
| ), | ||
| ); | ||
| } | ||
|
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| void updatedDisplayedPinnedCourses(List<Course> displayedPinnedCourses) { | ||
| state = state.copyWith(displayedPinnedCourses: displayedPinnedCourses); | ||
| } | ||
|
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| void setUpDisplayedPinnedCourses(List<Course> allCourses) { | ||
| CourseUtils.sortCourses(allCourses, 'Newest First'); | ||
| updatedDisplayedPinnedCourses( | ||
| CourseUtils.filterCoursesBySemester( | ||
| allCourses, | ||
| state.selectedSemester ?? 'All', | ||
| ), | ||
| ); | ||
| } | ||
|
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| bool isCoursePinned(int id) { | ||
| if (state.userPinned == null) { | ||
| return false; | ||
| } | ||
| for (var course in state.userPinned!) { | ||
| if (course.id == id) { | ||
| return true; | ||
| } | ||
| } | ||
| return false; | ||
| } | ||
|
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| void setLoading(bool loading) { | ||
| state = state.copyWith(isLoading: loading); | ||
| } | ||
|
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| void setSemestersAsString(List<Semester> semesters) { | ||
| state = state.copyWith( | ||
| semestersAsString: CourseUtils.convertAndSortSemesters(semesters, true), | ||
| ); | ||
| } | ||
|
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| void setSelectedSemester(String choice) { | ||
| state = state.copyWith(selectedSemester: choice); | ||
| } | ||
|
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||
|
|
||
| } |
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