Jisho-Study-Tool/lib/bloc/kanji/kanji_bloc.dart

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import 'dart:async';
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import 'package:jisho_study_tool/bloc/database/database_bloc.dart';
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import 'package:jisho_study_tool/models/history/kanji_result.dart';
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import './kanji_event.dart';
import './kanji_state.dart';
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import 'package:bloc/bloc.dart';
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import 'package:jisho_study_tool/services/jisho_api/kanji_search.dart';
import 'package:jisho_study_tool/services/kanji_suggestions.dart';
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export './kanji_event.dart';
export './kanji_state.dart';
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class KanjiBloc extends Bloc<KanjiEvent, KanjiState> {
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DatabaseBloc _databaseBloc;
KanjiBloc(this._databaseBloc) : super(KanjiSearch(KanjiSearchType.Initial));
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void addSearchToDB(kanji) {
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if (_databaseBloc.state is DatabaseDisconnected)
throw DatabaseNotConnectedException;
(_databaseBloc.state as DatabaseConnected)
.database
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.box<KanjiResult>()
.put(KanjiResult(
kanji: kanji,
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timestamp: DateTime.now(),
));
}
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@override
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Stream<KanjiState> mapEventToState(KanjiEvent event)
async* {
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if (event is GetKanji) {
yield KanjiSearchLoading();
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try {
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addSearchToDB(event.kanjiSearchString);
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final kanji = await fetchKanji(event.kanjiSearchString);
if (kanji.found) yield KanjiSearchFinished(kanji: kanji);
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else yield KanjiSearchError('Something went wrong');
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} on Exception {
yield KanjiSearchError('Something went wrong');
}
} else if (event is GetKanjiSuggestions) {
final suggestions = kanjiSuggestions(event.searchString);
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yield KanjiSearchKeyboard(KanjiSearchType.Keyboard, suggestions);
} else if (event is ReturnToInitialState) {
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yield KanjiSearch(KanjiSearchType.Initial);
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}
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}
}