import 'package:drift/native.dart';
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:focus_seed/src/app/focus_seed_app.dart';
import 'package:focus_seed/src/data/focus_seed_store.dart';
import 'package:focus_seed/src/data/local/focus_seed_database.dart';
import 'package:shared_preferences/shared_preferences.dart';

void main() {
  setUp(() {
    SharedPreferences.setMockInitialValues({});
  });

  test('locale policy defaults to English for release and Chinese for dev', () {
    expect(focusSeedDefaultLocale(isRelease: true), const Locale('en'));
    expect(focusSeedDefaultLocale(), const Locale('zh'));
  });

  testWidgets('Today guides the user from intention to focus', (tester) async {
    await pumpFocusSeedApp(tester, locale: const Locale('en'));

    expect(find.text('Focus Seed'), findsOneWidget);
    expect(find.text("TODAY'S INTENTION"), findsOneWidget);
    expect(find.text("Set today's intention"), findsOneWidget);

    await tester.tap(find.text('Choose one outcome'));
    await tester.pumpAndSettle();
    await tester.enterText(
      find.byType(TextField),
      'Finish the launch checklist',
    );
    await tester.tap(find.text('Save'));
    await tester.pumpAndSettle();

    expect(find.text('Finish the launch checklist'), findsOneWidget);
    expect(find.text('Start 25 min'), findsOneWidget);
  });

  testWidgets('bottom navigation exposes Journey and Me', (tester) async {
    await pumpFocusSeedApp(tester, locale: const Locale('en'));

    await tester.tap(find.text('Journey'));
    await tester.pumpAndSettle();
    expect(find.text("Today's journey"), findsOneWidget);

    await tester.tap(find.text('Me'));
    await tester.pumpAndSettle();
    expect(find.text('Your space'), findsOneWidget);
    expect(find.text('Appearance'), findsOneWidget);
  });

  testWidgets('Me manages local data without JSON tools', (tester) async {
    await pumpFocusSeedApp(tester, locale: const Locale('en'));

    await tester.tap(find.text('Me'));
    await tester.pumpAndSettle();

    expect(find.text('Local data'), findsOneWidget);
    expect(find.text('Clear today'), findsOneWidget);
    await tester.scrollUntilVisible(find.text('Delete all local data'), 180);
    expect(find.text('Delete all local data'), findsOneWidget);
    expect(find.text('Export JSON'), findsNothing);
    expect(find.text('Import JSON'), findsNothing);
  });

  testWidgets('Journey opens history detail with empty states', (tester) async {
    await pumpFocusSeedApp(tester, locale: const Locale('en'));

    await tester.tap(find.text('Journey'));
    await tester.pumpAndSettle();

    final journeyScroll = find.byType(Scrollable).first;
    await tester.scrollUntilVisible(
      find.text('This week'),
      180,
      scrollable: journeyScroll,
    );
    expect(find.text('This week'), findsOneWidget);
    await tester.scrollUntilVisible(
      find.text('View history'),
      180,
      scrollable: journeyScroll,
    );
    expect(find.text('View history'), findsOneWidget);

    await tester.tap(find.text('View history'));
    await tester.pumpAndSettle();

    expect(find.text('History'), findsOneWidget);
    expect(find.text('No focus sessions yet'), findsOneWidget);

    await tester.tap(find.text('Notes'));
    await tester.pumpAndSettle();
    expect(find.text('No notes yet'), findsOneWidget);
  });

  testWidgets('Today remains usable at narrow width and 200 percent text', (
    tester,
  ) async {
    tester.view.physicalSize = const Size(320, 700);
    tester.view.devicePixelRatio = 1;
    tester.platformDispatcher.textScaleFactorTestValue = 2;
    addTearDown(() {
      tester.view.resetPhysicalSize();
      tester.view.resetDevicePixelRatio();
      tester.platformDispatcher.clearTextScaleFactorTestValue();
    });

    await pumpFocusSeedApp(tester, locale: const Locale('en'));

    expect(find.text('Focus Seed'), findsOneWidget);
    expect(find.byType(Scrollable), findsWidgets);
    expect(tester.takeException(), isNull);
  });

  testWidgets('development default uses concise Chinese copy', (tester) async {
    await pumpFocusSeedApp(tester);

    expect(find.text('Focus Seed'), findsOneWidget);
    expect(find.text('\u4eca\u65e5\u76ee\u6807'), findsOneWidget);
    expect(find.text('\u8bbe\u7f6e\u4eca\u65e5\u76ee\u6807'), findsOneWidget);
    await tester.scrollUntilVisible(
      find.text('\u8ba1\u5212\u4e00\u4e2a\u660e\u786e\u4efb\u52a1'),
      180,
    );
    expect(
      find.text('\u8ba1\u5212\u4e00\u4e2a\u660e\u786e\u4efb\u52a1'),
      findsOneWidget,
    );
  });

  testWidgets('development language switch changes the active locale', (
    tester,
  ) async {
    await pumpFocusSeedApp(tester);

    await tester.tap(find.text('\u6211\u7684'));
    await tester.pumpAndSettle();

    expect(find.text('\u8bed\u8a00'), findsOneWidget);
    await tester.tap(find.text('English'));
    await tester.pumpAndSettle();

    expect(find.text('Your space'), findsOneWidget);
    expect(find.text('Language'), findsOneWidget);
  });
}

Future<void> pumpFocusSeedApp(WidgetTester tester, {Locale? locale}) async {
  final database = FocusSeedDatabase(NativeDatabase.memory());
  addTearDown(database.close);
  await tester.pumpWidget(
    FocusSeedApp(
      locale: locale,
      focusSeedStore: FocusSeedStore(database: database),
    ),
  );
  await tester.pumpAndSettle();
}