import 'package:flutter/cupertino.dart';
import 'package:flutter/services.dart';
import 'package:macos_ui/macos_ui.dart';
import '../rust/api/packages.dart';
import '../rust/frb_generated.dart';
import '../services/app_badge_controller.dart';
import '../services/app_settings_service.dart';
import 'theme/window_theme_style.dart';
import 'screens/cleaner_screen.dart';
import 'screens/discover_screen.dart';
import 'screens/doctor_screen.dart';
import 'screens/history_screen.dart';
import 'screens/installed_screen.dart';
import 'screens/settings_screen.dart';
import 'screens/starter_packs_screen.dart';
import 'screens/updates_screen.dart';
import 'widgets/keyboard_shortcuts_dialog.dart';
import 'widgets/package_inspector.dart';
import 'widgets/setup_wizard_dialog.dart';
import 'widgets/spotlight_search_dialog.dart';

class MainLayout extends StatefulWidget {
  const MainLayout({super.key});

  @override
  State<MainLayout> createState() => _MainLayoutState();
}

class _MainLayoutState extends State<MainLayout> {
  int _pageIndex = 0;

  @override
  void initState() {
    super.initState();
    _performInitialBadgeScan();

    WidgetsBinding.instance.addPostFrameCallback((_) {
      if (!AppSettingsService.instance.hasCompletedSetupWizard && mounted) {
        SetupWizardDialog.show(context);
      }
    });
  }

  Future<void> _performInitialBadgeScan() async {
    try {
      final updates = await RustBridgeApi.checkUpdates();
      AppBadgeController.instance.setUpdatesCount(updates.length);
    } catch (_) {}

    try {
      final scan = await RustBridgeApi.scanCleaner();
      AppBadgeController.instance.setCleanerBytes(scan.totalReclaimableBytes);
    } catch (_) {}
  }

  void _onInspectPackage(String name, BackendType backend) {
    PackageInspectorSheet.show(
      context,
      packageName: name,
      backend: backend,
    );
  }

  void _openSpotlight() {
    SpotlightSearchDialog.show(
      context,
      onSelectPackage: (name, backend) {
        _onInspectPackage(name, backend);
      },
    );
  }

  @override
  Widget build(BuildContext context) {
    final macosTheme = MacosTheme.of(context);
    return CallbackShortcuts(
      bindings: {
        const SingleActivator(LogicalKeyboardKey.keyK, control: true): _openSpotlight,
        const SingleActivator(LogicalKeyboardKey.keyK, meta: true): _openSpotlight,
        const SingleActivator(LogicalKeyboardKey.slash, control: true): () => KeyboardShortcutsDialog.show(context),
        const SingleActivator(LogicalKeyboardKey.f1): () => KeyboardShortcutsDialog.show(context),
        const SingleActivator(LogicalKeyboardKey.keyR, control: true): _performInitialBadgeScan,
        const SingleActivator(LogicalKeyboardKey.f5): _performInitialBadgeScan,
        const SingleActivator(LogicalKeyboardKey.digit1, control: true): () => setState(() => _pageIndex = 0),
        const SingleActivator(LogicalKeyboardKey.digit2, control: true): () => setState(() => _pageIndex = 1),
        const SingleActivator(LogicalKeyboardKey.digit3, control: true): () => setState(() => _pageIndex = 2),
        const SingleActivator(LogicalKeyboardKey.digit4, control: true): () => setState(() => _pageIndex = 3),
        const SingleActivator(LogicalKeyboardKey.digit5, control: true): () => setState(() => _pageIndex = 4),
        const SingleActivator(LogicalKeyboardKey.digit6, control: true): () => setState(() => _pageIndex = 5),
        const SingleActivator(LogicalKeyboardKey.digit7, control: true): () => setState(() => _pageIndex = 6),
      },
      child: Focus(
        autofocus: true,
        child: MacosWindow(
          sidebar: Sidebar(
            topOffset: 0.0, // Убираем пустой отступ macOS traffic lights на Linux
            minWidth: 200,
            startWidth: 220,
            maxWidth: 260,
            top: Padding(
              padding: const EdgeInsets.fromLTRB(16, 14, 16, 10),
              child: Column(
                mainAxisSize: MainAxisSize.min,
                children: [
                  Row(
                    children: [
                      Container(
                        width: 30,
                        height: 30,
                        decoration: BoxDecoration(
                          color: macosTheme.primaryColor,
                          borderRadius: BorderRadius.circular(
                            AppSettingsService.instance.effectiveWindowThemeStyle == WindowThemeStyle.kde ? 4 : 8,
                          ),
                          boxShadow: [
                            BoxShadow(
                              color: macosTheme.primaryColor.withValues(alpha: 0.35),
                              blurRadius: 6,
                              offset: const Offset(0, 2),
                            ),
                          ],
                        ),
                        child: Center(
                          child: MacosIcon(
                            AppSettingsService.instance.effectiveWindowThemeStyle == WindowThemeStyle.kde
                                ? CupertinoIcons.gear_alt_fill
                                : AppSettingsService.instance.effectiveWindowThemeStyle == WindowThemeStyle.gnome
                                    ? CupertinoIcons.app_badge_fill
                                    : CupertinoIcons.cube_box_fill,
                            color: CupertinoColors.white,
                            size: 17,
                          ),
                        ),
                      ),
                      const SizedBox(width: 10),
                      Expanded(
                        child: Column(
                          crossAxisAlignment: CrossAxisAlignment.start,
                          mainAxisSize: MainAxisSize.min,
                          children: [
                            const Text(
                              'Forge',
                              style: TextStyle(
                                fontSize: 14,
                                fontWeight: FontWeight.bold,
                                letterSpacing: -0.2,
                              ),
                              overflow: TextOverflow.ellipsis,
                            ),
                            Text(
                              AppSettingsService.instance.effectiveWindowThemeStyle == WindowThemeStyle.kde
                                  ? 'KDE Breeze Edition'
                                  : AppSettingsService.instance.effectiveWindowThemeStyle == WindowThemeStyle.gnome
                                      ? 'GNOME Adwaita'
                                      : 'macOS Cupertino',
                              style: const TextStyle(
                                fontSize: 10.5,
                                color: CupertinoColors.systemGrey,
                              ),
                              overflow: TextOverflow.ellipsis,
                            ),
                          ],
                        ),
                      ),
                      MacosTooltip(
                        message: 'Горячие клавиши (F1 / Ctrl+/)',
                        child: MacosIconButton(
                          icon: const MacosIcon(CupertinoIcons.keyboard, size: 14),
                          onPressed: () => KeyboardShortcutsDialog.show(context),
                        ),
                      ),
                    ],
                  ),
                  const SizedBox(height: 12),

                  // Spotlight Search Trigger Button
                  CupertinoButton(
                    padding: EdgeInsets.zero,
                    minimumSize: Size.zero,
                    onPressed: _openSpotlight,
                    child: Container(
                      padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 6.5),
                      decoration: BoxDecoration(
                        color: CupertinoColors.white.withValues(alpha: 0.05),
                        borderRadius: BorderRadius.circular(7),
                        border: Border.all(
                          color: CupertinoColors.white.withValues(alpha: 0.07),
                        ),
                      ),
                      child: const Row(
                        children: [
                          MacosIcon(
                            CupertinoIcons.search,
                            size: 13,
                            color: CupertinoColors.systemGrey,
                          ),
                          SizedBox(width: 8),
                          Expanded(
                            child: Text(
                              'Поиск пакетов...',
                              style: TextStyle(
                                fontSize: 12,
                                color: CupertinoColors.systemGrey,
                              ),
                            ),
                          ),
                          Text(
                            '⌘K',
                            style: TextStyle(
                              fontSize: 10,
                              fontWeight: FontWeight.bold,
                              color: CupertinoColors.systemGrey,
                            ),
                          ),
                        ],
                      ),
                    ),
                  ),
                ],
              ),
            ),
        builder: (context, scrollController) {
          return ListenableBuilder(
            listenable: AppBadgeController.instance,
            builder: (context, _) {
              final badge = AppBadgeController.instance;

              return SidebarItems(
                currentIndex: _pageIndex,
                onChanged: (index) {
                  setState(() {
                    _pageIndex = index;
                  });
                },
                scrollController: scrollController,
                itemSize: SidebarItemSize.large,
                items: [
                  const SidebarItem(
                    label: Text('УПРАВЛЕНИЕ'),
                    section: true,
                  ),
                  SidebarItem(
                    leading: const MacosIcon(CupertinoIcons.arrow_down_circle_fill),
                    label: const Text('Обновления'),
                    trailing: badge.updatesCount > 0
                        ? Container(
                            padding: const EdgeInsets.symmetric(horizontal: 7, vertical: 1.5),
                            decoration: BoxDecoration(
                              color: const Color(0xFF0A84FF),
                              borderRadius: BorderRadius.circular(10),
                            ),
                            child: Text(
                              '${badge.updatesCount}',
                              style: const TextStyle(
                                fontSize: 10,
                                fontWeight: FontWeight.bold,
                                color: CupertinoColors.white,
                              ),
                            ),
                          )
                        : null,
                  ),
                  const SidebarItem(
                    leading: MacosIcon(CupertinoIcons.square_stack_3d_up_fill),
                    label: Text('Установленные'),
                  ),
                  const SidebarItem(
                    leading: MacosIcon(CupertinoIcons.compass_fill),
                    label: Text('Каталог'),
                  ),
                  const SidebarItem(
                    leading: MacosIcon(CupertinoIcons.square_grid_2x2_fill),
                    label: Text('Наборы ПО'),
                  ),
                  const SidebarItem(
                    label: Text('СИСТЕМА И ОПТИМИЗАЦИЯ'),
                    section: true,
                  ),
                  SidebarItem(
                    leading: const MacosIcon(CupertinoIcons.sparkles),
                    label: const Text('Очистка'),
                    trailing: badge.cleanerBytes > 0
                        ? Container(
                            padding: const EdgeInsets.symmetric(horizontal: 6, vertical: 1.5),
                            decoration: BoxDecoration(
                              color: CupertinoColors.systemOrange.withValues(alpha: 0.2),
                              borderRadius: BorderRadius.circular(10),
                            ),
                            child: Text(
                              AppBadgeController.formatBytes(badge.cleanerBytes),
                              style: const TextStyle(
                                fontSize: 9.5,
                                fontWeight: FontWeight.bold,
                                color: CupertinoColors.systemOrange,
                              ),
                            ),
                          )
                        : null,
                  ),
                  const SidebarItem(
                    leading: MacosIcon(CupertinoIcons.bandage_fill),
                    label: Text('Диагностика'),
                  ),
                  const SidebarItem(
                    leading: MacosIcon(CupertinoIcons.clock_fill),
                    label: Text('История'),
                  ),
                  const SidebarItem(
                    leading: MacosIcon(CupertinoIcons.gear_alt_fill),
                    label: Text('Настройки'),
                  ),
                ],
              );
            },
          );
        },
        bottom: MacosListTile(
          leading: const MacosIcon(
            CupertinoIcons.command,
            color: CupertinoColors.systemGrey,
          ),
          title: const Text(
            'Arch / Flatpak / AUR',
            style: TextStyle(fontSize: 12, color: CupertinoColors.systemGrey),
          ),
        ),
      ),
      child: IndexedStack(
        index: _pageIndex.clamp(0, 7),
        children: [
          UpdatesScreen(onInspectPackage: _onInspectPackage),
          InstalledScreen(onInspectPackage: _onInspectPackage),
          DiscoverScreen(onInspectPackage: _onInspectPackage),
          const StarterPacksScreen(),
          const CleanerScreen(),
          const DoctorScreen(),
          const HistoryScreen(),
          const SettingsScreen(),
        ],
      ),
    ),
  ),
);
  }
}