import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:moonwell_launcher/app/design_system/mw_authentication.dart';
import 'package:moonwell_launcher/app/launcher_version.dart';
import 'package:moonwell_launcher/app/theme/moonwell_design_system.dart';

void main() {
  testWidgets('authentication placeholders use muted text color', (
    tester,
  ) async {
    await tester.pumpWidget(
      MaterialApp(
        theme: MoonWellTheme.create(MoonWellThemeVariant.forest),
        home: Scaffold(
          body: MwAuthenticationForm(
            usernameController: TextEditingController(),
            passwordController: TextEditingController(),
            onSubmit: () {},
          ),
        ),
      ),
    );

    final fieldContext = tester.element(find.byType(TextField).first);
    final hintColor = Theme.of(
      fieldContext,
    ).inputDecorationTheme.hintStyle?.color;

    expect(hintColor, const Color(0x69ECE4D0));
  });

  testWidgets('registration mode exposes all API registration fields', (
    tester,
  ) async {
    await tester.pumpWidget(
      MaterialApp(
        theme: MoonWellTheme.create(MoonWellThemeVariant.forest),
        home: Scaffold(
          body: SingleChildScrollView(
            child: MwAuthenticationForm(
              usernameController: TextEditingController(),
              emailController: TextEditingController(),
              passwordController: TextEditingController(),
              passwordConfirmationController: TextEditingController(),
              inviteCodeController: TextEditingController(),
              mode: MwAuthenticationMode.registration,
              termsAccepted: true,
              onSubmit: () {},
            ),
          ),
        ),
      ),
    );

    expect(find.text('СОЗДАТЬ АККАУНТ'), findsOneWidget);
    expect(find.text('EMAIL'), findsOneWidget);
    expect(find.text('ПОВТОРИТЕ ПАРОЛЬ'), findsOneWidget);
    expect(find.text('ИНВАЙТ-КОД (НЕОБЯЗАТЕЛЬНО)'), findsOneWidget);
    expect(
      find.text('Я принимаю правила сервера и пользовательское соглашение'),
      findsOneWidget,
    );
  });

  testWidgets('authentication tabs request mode changes', (tester) async {
    MwAuthenticationMode? requestedMode;
    await tester.pumpWidget(
      MaterialApp(
        theme: MoonWellTheme.create(MoonWellThemeVariant.forest),
        home: Scaffold(
          body: MwAuthenticationForm(
            usernameController: TextEditingController(),
            passwordController: TextEditingController(),
            onModeChanged: (mode) => requestedMode = mode,
            onSubmit: () {},
          ),
        ),
      ),
    );

    await tester.tap(find.text('РЕГИСТРАЦИЯ'));

    expect(requestedMode, MwAuthenticationMode.registration);
  });

  testWidgets('inactive authentication tab has no divider', (tester) async {
    await tester.pumpWidget(
      MaterialApp(
        theme: MoonWellTheme.create(MoonWellThemeVariant.forest),
        home: Scaffold(
          body: MwAuthenticationForm(
            usernameController: TextEditingController(),
            passwordController: TextEditingController(),
            onSubmit: () {},
          ),
        ),
      ),
    );

    final tabBorders = tester
        .widgetList<Container>(
          find.descendant(
            of: find.byType(MwAuthenticationForm),
            matching: find.byType(Container),
          ),
        )
        .map((container) => container.decoration)
        .whereType<BoxDecoration>()
        .map((decoration) => decoration.border)
        .whereType<Border>()
        .where((border) => border.bottom.style != BorderStyle.none)
        .map((border) => border.bottom.color)
        .toList();

    expect(tabBorders, hasLength(2));
    expect(
      tabBorders.where((color) => color == Colors.transparent),
      hasLength(1),
    );
  });

  testWidgets('authentication footer uses the packaged launcher version', (
    tester,
  ) async {
    await tester.pumpWidget(
      LauncherVersionScope(
        version: '9.8.7',
        child: MaterialApp(
          theme: MoonWellTheme.create(MoonWellThemeVariant.forest),
          home: Scaffold(
            body: MwAuthenticationForm(
              usernameController: TextEditingController(),
              passwordController: TextEditingController(),
              onSubmit: () {},
            ),
          ),
        ),
      ),
    );

    expect(find.textContaining('V 9.8.7'), findsOneWidget);
  });
}