import 'package:flutter/material.dart';
import 'package:moonwell_launcher/app/design_system/mw_authentication.dart';
import 'package:moonwell_launcher/app/design_system/mw_launcher_components.dart';
import 'package:moonwell_launcher/app/design_system/mw_shells.dart';
import 'package:widgetbook/widgetbook.dart';
import 'package:widgetbook_annotation/widgetbook_annotation.dart' as widgetbook;

VoidCallback _windowCallback(String action) {
  return () => debugPrint('Window action requested: $action');
}

@widgetbook.UseCase(name: 'default', type: MwBrandMark, path: '[Foundations]')
Widget buildMwBrandMarkUseCase(BuildContext context) {
  return MwBrandMark(
    width: context.knobs.double.slider(
      label: 'width',
      initialValue: 220,
      min: 96,
      max: 360,
      divisions: 33,
    ),
  );
}

@widgetbook.UseCase(
  name: 'default',
  type: MwArtworkBackground,
  path: '[Foundations]',
)
Widget buildMwArtworkBackgroundUseCase(BuildContext context) {
  return const MwArtworkBackground(
    assetPackage: 'moonwell_launcher',
    child: Center(child: Text('Safe content area')),
  );
}

@widgetbook.UseCase(name: 'default', type: MwLoginShell, path: '[Compositions]')
Widget buildMwLoginShellUseCase(BuildContext context) {
  return MwLoginShell(
    assetPackage: 'moonwell_launcher',
    form: MwAuthenticationForm(
      usernameController: TextEditingController(),
      passwordController: TextEditingController(),
      onSubmit: () => debugPrint('Login submitted'),
    ),
    onDrag: _windowCallback('drag'),
    onDoubleTap: _windowCallback('double_tap'),
    onMinimize: _windowCallback('minimize'),
    onMaximizeRestore: _windowCallback('maximize_restore'),
    onClose: _windowCallback('close'),
  );
}

@widgetbook.UseCase(
  name: 'api_error',
  type: MwLoginShell,
  path: '[Compositions]',
)
Widget buildMwLoginShellApiErrorUseCase(BuildContext context) {
  return MwLoginShell(
    assetPackage: 'moonwell_launcher',
    form: MwAuthenticationForm(
      usernameController: TextEditingController(text: 'moonwalker'),
      passwordController: TextEditingController(),
      error: context.knobs.string(
        label: 'error',
        initialValue: 'Неверный логин или пароль.',
      ),
      onSubmit: () => debugPrint('Login submitted after API error'),
    ),
    onDrag: _windowCallback('drag'),
    onDoubleTap: _windowCallback('double_tap'),
    onMinimize: _windowCallback('minimize'),
    onMaximizeRestore: _windowCallback('maximize_restore'),
    onClose: _windowCallback('close'),
  );
}

@widgetbook.UseCase(
  name: 'restored_session_loading',
  type: MwLoginShell,
  path: '[Compositions]',
)
Widget buildMwLoginShellRestoredSessionLoadingUseCase(BuildContext context) {
  return MwLoginShell(
    assetPackage: 'moonwell_launcher',
    form: const Center(
      child: Column(
        mainAxisSize: MainAxisSize.min,
        children: [
          CircularProgressIndicator(),
          SizedBox(height: 16),
          Text('Восстанавливаем защищённую сессию…'),
        ],
      ),
    ),
    onDrag: _windowCallback('drag'),
    onDoubleTap: _windowCallback('double_tap'),
    onMinimize: _windowCallback('minimize'),
    onMaximizeRestore: _windowCallback('maximize_restore'),
    onClose: _windowCallback('close'),
  );
}

MwLauncherShell _launcherShell({
  required MwNewsListState newsState,
  required MwSyncPresentation syncState,
  required String status,
  double? progress,
  String? error,
}) {
  return MwLauncherShell(
    assetPackage: 'moonwell_launcher',
    news: MwNewsList(
      state: newsState,
      error: newsState == MwNewsListState.failure
          ? 'Сервер новостей временно недоступен.'
          : null,
      items: newsState == MwNewsListState.populated
          ? List.generate(
              8,
              (index) => MwNewsItemData(
                title: 'Новость ${index + 1}',
                body: 'События игрового мира и важные обновления MoonWell.',
                createdAt: DateTime(2026, 6, 22 - index),
              ),
            )
          : const [],
      onRetry: () => debugPrint('News reload requested'),
    ),
    syncActions: MwSyncActionArea(
      state: syncState,
      status: status,
      progress: progress,
      currentPath: syncState == MwSyncPresentation.downloading
          ? r'Data\ruRU\patch-ruRU.MPQ'
          : null,
      error: error,
      onPrimary: () => debugPrint('Primary sync action requested'),
      onPause: syncState == MwSyncPresentation.downloading
          ? () => debugPrint('Sync pause requested')
          : null,
    ),
    statusBar: const MwLauncherStatusBar(
      status: 'MoonWell Launcher · локальная установка',
      fileCount: '124/480',
      buildHash: 'a93fd1c2',
    ),
    account: MwAccountAffordance(
      onSettings: () => debugPrint('Settings requested'),
      onLogout: () => debugPrint('Logout requested'),
    ),
    onDrag: _windowCallback('drag'),
    onDoubleTap: _windowCallback('double_tap'),
    onMinimize: _windowCallback('minimize'),
    onMaximizeRestore: _windowCallback('maximize_restore'),
    onClose: _windowCallback('close'),
  );
}

@widgetbook.UseCase(
  name: 'ready',
  type: MwLauncherShell,
  path: '[Compositions]',
)
Widget buildMwLauncherShellReadyUseCase(BuildContext context) {
  return _launcherShell(
    newsState: MwNewsListState.populated,
    syncState: MwSyncPresentation.ready,
    status: 'Клиент готов к запуску.',
  );
}

@widgetbook.UseCase(
  name: 'downloading',
  type: MwLauncherShell,
  path: '[Compositions]',
)
Widget buildMwLauncherShellDownloadingUseCase(BuildContext context) {
  return _launcherShell(
    newsState: MwNewsListState.populated,
    syncState: MwSyncPresentation.downloading,
    status: 'Загружаем обновление клиента…',
    progress: context.knobs.double.slider(
      label: 'progress',
      initialValue: .46,
      min: 0,
      max: 1,
      divisions: 100,
    ),
  );
}

@widgetbook.UseCase(
  name: 'paused',
  type: MwLauncherShell,
  path: '[Compositions]',
)
Widget buildMwLauncherShellPausedUseCase(BuildContext context) {
  return _launcherShell(
    newsState: MwNewsListState.populated,
    syncState: MwSyncPresentation.paused,
    status: 'Обновление приостановлено.',
    progress: .46,
  );
}

@widgetbook.UseCase(
  name: 'verifying',
  type: MwLauncherShell,
  path: '[Compositions]',
)
Widget buildMwLauncherShellVerifyingUseCase(BuildContext context) {
  return _launcherShell(
    newsState: MwNewsListState.populated,
    syncState: MwSyncPresentation.verifying,
    status: 'Проверяем целостность установки…',
  );
}

@widgetbook.UseCase(
  name: 'failure',
  type: MwLauncherShell,
  path: '[Compositions]',
)
Widget buildMwLauncherShellFailureUseCase(BuildContext context) {
  return _launcherShell(
    newsState: MwNewsListState.failure,
    syncState: MwSyncPresentation.failure,
    status: 'Не удалось завершить обновление.',
    error: 'Проверка SHA-256 не пройдена.',
  );
}

@widgetbook.UseCase(
  name: 'empty_news',
  type: MwLauncherShell,
  path: '[Compositions]',
)
Widget buildMwLauncherShellEmptyNewsUseCase(BuildContext context) {
  return _launcherShell(
    newsState: MwNewsListState.empty,
    syncState: MwSyncPresentation.ready,
    status: 'Клиент готов к запуску.',
  );
}