63 lines
1.8 KiB
Dart
63 lines
1.8 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:fluffychat/pangea/course_plans/course_plan_model.dart';
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import 'package:fluffychat/pangea/course_plans/course_plans_repo.dart';
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import 'package:fluffychat/pangea/learning_settings/enums/language_level_type_enum.dart';
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import 'package:fluffychat/pangea/learning_settings/models/language_model.dart';
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mixin CourseSearchProvider<T extends StatefulWidget> on State<T> {
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bool loading = true;
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Object? error;
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List<CoursePlanModel> courses = [];
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LanguageLevelTypeEnum? languageLevelFilter;
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LanguageModel? instructionLanguageFilter;
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LanguageModel? targetLanguageFilter;
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@override
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void initState() {
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super.initState();
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WidgetsBinding.instance.addPostFrameCallback(
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(_) => _loadCourses(),
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);
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}
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CourseFilter get _filter {
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return CourseFilter(
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targetLanguage: targetLanguageFilter,
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languageOfInstructions: instructionLanguageFilter,
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cefrLevel: languageLevelFilter,
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);
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}
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void setLanguageLevelFilter(LanguageLevelTypeEnum? level, {reload = true}) {
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languageLevelFilter = level;
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if (reload) _loadCourses();
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}
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void setInstructionLanguageFilter(LanguageModel? language, {reload = true}) {
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instructionLanguageFilter = language;
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if (reload) _loadCourses();
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}
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void setTargetLanguageFilter(LanguageModel? language, {reload = true}) {
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targetLanguageFilter = language;
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if (reload) _loadCourses();
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}
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Future<void> _loadCourses() async {
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try {
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setState(() {
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loading = true;
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error = null;
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});
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courses = await CoursePlansRepo.search(filter: _filter);
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} catch (e, s) {
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debugPrint("Failed to load courses: $e\n$s");
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error = e;
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} finally {
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if (mounted) setState(() => loading = false);
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}
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}
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}
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