import 'package:flutter_test/flutter_test.dart';
import 'package:halkyon_learn_flutter/src/core/content/rich_content.dart';
import 'package:halkyon_learn_flutter/src/core/router/route_paths.dart';
import 'package:halkyon_learn_flutter/src/core/widget/text_limits.dart';
import 'package:halkyon_learn_flutter/src/feature/card/data/card_repository.dart';
import 'package:halkyon_learn_flutter/src/feature/card/model/card_content.dart';
import 'package:halkyon_learn_flutter/src/feature/learning_path/data/learning_path_repository.dart';
import 'package:halkyon_learn_flutter/src/feature/learning_path/model/learning_path.dart';
import 'package:halkyon_learn_flutter/src/feature/note/data/note_repository.dart';
import 'package:halkyon_learn_flutter/src/feature/note/model/note_content.dart';
import 'package:halkyon_learn_flutter/src/feature/pomodoro/model/pomodoro_profile.dart';
import 'package:halkyon_learn_flutter/src/feature/settings/data/settings_repository.dart';
import 'package:halkyon_learn_flutter/src/feature/studyset/data/studyset_payload.dart';
import 'package:halkyon_learn_flutter/src/feature/studyset/model/studyset_content.dart';
import 'package:halkyon_learn_flutter/src/feature/tag/data/tag_repository.dart';
import 'package:material_ui/material_ui.dart';

import '../support/fake_card_gateway.dart';
import '../support/fake_learning_path_gateway.dart';
import '../support/fake_note_gateway.dart';
import '../support/fake_settings_gateway.dart';
import '../support/fake_studyset_gateway.dart';
import '../support/fake_tag_gateway.dart';
import '../support/pump_app.dart';
import '../support/test_dependencies.dart';

/// Names longer than the fields allow ([TextLimits]), as an older app, an
/// import or another person's release can bring them: every screen that
/// shows them cuts them short rather than overflowing, which fails a test.
void main() {
  /// [length] characters of a name made of words, as long names are.
  String long(String word, int length) =>
      List.filled(length, word).join(' ').substring(0, length);

  final studysetTitle = long('Japanese', TextLimits.title * 2);
  final kicker = long('日本語', TextLimits.secondary * 2);
  final topicTitle = long('Grammar', TextLimits.title * 2);
  final tagName = long('Particles', TextLimits.name * 3);
  final profileName = long('Deep focus', TextLimits.name * 3);

  late FakeStudysetGateway studysets;
  late FakeCardGateway cardGateway;
  late FakeNoteGateway noteGateway;
  late FakeLearningPathGateway pathGateway;
  late FakeTagGateway tagGateway;
  late FakeSettingsGateway settingsGateway;

  setUp(() async {
    studysets = FakeStudysetGateway()
      ..receiveRemoteChange(
        'japanese',
        encodeStudysetPayload(
          StudysetContent(
            title: studysetTitle,
            secondaryTitle: kicker,
            description: RichContent.plain(long('About', 400)),
          ),
        ),
      )
      ..receiveRemoteChange(
        'grammar',
        encodeStudysetPayload(StudysetContent.titled(topicTitle)),
        parentId: 'japanese',
      )
      ..receiveRemoteChange(
        'inner',
        encodeStudysetPayload(StudysetContent.titled(topicTitle)),
        parentId: 'grammar',
      );
    cardGateway = FakeCardGateway();
    noteGateway = FakeNoteGateway();
    pathGateway = FakeLearningPathGateway();
    tagGateway = FakeTagGateway();
    settingsGateway = FakeSettingsGateway();

    final cards = CardRepository(cardGateway);
    final cardId = await cards.create(
      'japanese',
      CardContent(
        front: RichContent.plain(long('front', 300)),
        back: RichContent.plain(long('back', 300)),
      ),
    );
    final tags = TagRepository(tagGateway, cardChanges: cards.changes);
    await tags.setTagsOf(cardId, {await tags.create(tagName)});
    await NoteRepository(noteGateway).create(
      'japanese',
      NoteContent(
        title: long('Note', TextLimits.title * 2),
        body: RichContent.empty(),
      ),
    );
    await LearningPathRepository(pathGateway).createPath(
      'japanese',
      LearningPathContent.titled(
        long('Path', TextLimits.title * 2),
      ).withSecondaryTitle(long('Book', TextLimits.secondary * 2)),
    );
    final profile = PomodoroProfile(id: 'long', name: profileName);
    await SettingsRepository(settingsGateway).update(
      (settings) => settings.withPomodoro(
        settings.pomodoro.withProfile(profile).withSelected(profile.id),
      ),
    );
    await Future.wait([tags.dispose(), cards.dispose()]);
  });

  for (final (window, width) in [('a phone', 360.0), ('a desktop', 1200.0)]) {
    Future<void> show(WidgetTester tester, String location) async {
      tester.view.physicalSize = Size(width, 800);
      tester.view.devicePixelRatio = 1;
      addTearDown(tester.view.reset);
      await pumpApp(
        tester,
        testDependencies(
          studysetGateway: studysets,
          cardGateway: cardGateway,
          noteGateway: noteGateway,
          pathGateway: pathGateway,
          tagGateway: tagGateway,
          settingsGateway: settingsGateway,
        ),
        location: location,
      );
      await tester.pump(const Duration(seconds: 1));
    }

    testWidgets('on $window, Home with a long Pomodoro profile', (
      tester,
    ) async {
      await show(tester, RoutePaths.home);

      expect(find.textContaining('Deep focus'), findsWidgets);
      await tester.tap(find.byTooltip(_profilesTooltip));
      await tester.pumpAndSettle();
    });

    testWidgets('on $window, the library and a long studyset', (
      tester,
    ) async {
      await show(tester, RoutePaths.library);

      expect(find.textContaining('Japanese'), findsWidgets);
    });

    testWidgets("on $window, a long studyset's screen, its parts and topics", (
      tester,
    ) async {
      await show(tester, RoutePaths.studyset('grammar'));

      for (final part in ['Study plan', 'Material']) {
        await openPart(tester, part);
      }
      if (width < 840) {
        await tester.tap(find.byTooltip('Show topics'));
        await tester.pumpAndSettle();
      }
    });

    testWidgets('on $window, the card browser with a long tag', (
      tester,
    ) async {
      await show(tester, RoutePaths.cardBrowser('japanese'));

      await tester.tap(find.byTooltip('Detail'));
      await tester.pumpAndSettle();
      await tester.tap(find.byTooltip('Select'));
      await tester.pumpAndSettle();
      await tester.tap(find.byTooltip('More'));
      await tester.pumpAndSettle();
      await tester.tap(find.text('Manage tags'));
      await tester.pumpAndSettle();
    });

    testWidgets('on $window, studying a long studyset', (tester) async {
      await show(tester, RoutePaths.study('japanese'));
    });
  }
}

/// The tooltip of the Pomodoro card's profiles button.
const _profilesTooltip = 'Pomodoro profiles';