import 'dart:io';

import 'package:flutter_test/flutter_test.dart';
import 'package:halkyon_learn_flutter/src/feature/dictionary/data/device_dictionaries.dart';
import 'package:halkyon_learn_flutter/src/feature/dictionary/data/device_dictionary_store.dart';
import 'package:halkyon_learn_flutter/src/feature/dictionary/data/japanese_analyser.dart';
import 'package:halkyon_learn_flutter/src/feature/dictionary/model/sentence_words.dart';
import 'package:integration_test/integration_test.dart';

// Japanese cut on the device for real (ADR 0012): MeCab as the package's
// build hook compiles it for the platform, IPADIC as the curator packs it,
// and JMdict as an instance exports it. On the desktop,
//
//   flutter test integration_test/japanese_analyser_test.dart -d linux \
//     --dart-define=IPADIC_PACK=<mecab-ipadic.tar.gz> \
//     --dart-define=JMDICT_EXPORT=<jmdict-en-….jsonl.gz>
//
// with the files an instance serves at /device-dictionaries/ (both named in
// `dictionary.deviceFiles('ja')`); the curator's `curate ipadic` writes the
// pack.
const _pack = String.fromEnvironment('IPADIC_PACK');
const _export = String.fromEnvironment('JMDICT_EXPORT');

void main() {
  IntegrationTestWidgetsFlutterBinding.ensureInitialized();

  late Directory folder;

  setUpAll(() async {
    folder = Directory.systemTemp.createTempSync('japanese');
    unpackIpadic(File(_pack), Directory('${folder.path}/ipadic'));
    await buildDeviceDictionary(
      File(_export),
      File('${folder.path}/jmdict.sqlite'),
    );
  });
  tearDownAll(() => folder.deleteSync(recursive: true));

  String cut(List<SentencePart> parts) => [
    for (final part in parts)
      if (part.isWord) part.text else '(${part.text})',
  ].join(' ');

  testWidgets('cuts lines into words as Jisho.org does, and finds each in '
      'JMdict', (tester) async {
    final lines = await tester.runAsync(
      () => IsolateJapaneseAnalyser().wordsOf(
        ipadic: '${folder.path}/ipadic',
        database: '${folder.path}/jmdict.sqlite',
        sentences: ['今日はいい天気ですね。', 'お前がもうろくだよ', '勉強している', '静かな部屋'],
      ),
    );

    final [weather, senile, study, room] = lines!;
    expect(cut(weather), '今日 は いい 天気 です ね (。)');
    expect(weather.first.entries.first.headword, '今日');
    expect(cut(senile), 'お前 が もうろく だ よ');
    expect(senile[2].entries.first.headword, '耄碌');
    expect(study.single.entries.first.headword, '勉強');
    expect(study.single.steps, isNotEmpty);
    expect(cut(room), '静かな 部屋');
    expect(room.first.entries.first.headword, '静か');
  });
}