import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:go_router/go_router.dart';

import '../../app/app_providers.dart';
import '../../core/router/route_names.dart';
import '../../core/utils/extensions.dart';
import '../providers/auth_provider.dart';

class AppScaffold extends ConsumerWidget {
  const AppScaffold({
    required this.child,
    required this.currentPath,
    this.isAdmin = false,
    super.key,
  });

  final Widget child;
  final String currentPath;
  final bool isAdmin;

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final isMobile = context.isMobile;

    return Scaffold(
      appBar: AppBar(
        title: Text(isAdmin ? '관리자' : 'Flutter Frame'),
        actions: [
          IconButton(
            icon: const Icon(Icons.brightness_6),
            onPressed: () {
              ref.read(themeModeNotifierProvider.notifier).toggleTheme();
            },
            tooltip: '테마 전환',
          ),
          IconButton(
            icon: const Icon(Icons.logout),
            onPressed: () async {
              await ref.read(authStateProvider.notifier).logout();
              if (context.mounted) {
                context.goNamed(RouteNames.login);
              }
            },
            tooltip: '로그아웃',
          ),
        ],
      ),
      drawer: isMobile ? _buildDrawer(context) : null,
      body: Row(
        children: [
          if (!isMobile) _buildSidebar(context),
          Expanded(child: child),
        ],
      ),
    );
  }

  Widget _buildSidebar(BuildContext context) {
    return NavigationRail(
      selectedIndex: _getSelectedIndex(),
      onDestinationSelected: (index) => _onDestinationSelected(context, index),
      labelType: NavigationRailLabelType.all,
      leading: Padding(
        padding: const EdgeInsets.symmetric(vertical: 8),
        child: Icon(
          isAdmin ? Icons.admin_panel_settings : Icons.apps,
          size: 32,
          color: context.colorScheme.primary,
        ),
      ),
      destinations: _getDestinations(),
    );
  }

  Widget _buildDrawer(BuildContext context) {
    return NavigationDrawer(
      selectedIndex: _getSelectedIndex(),
      onDestinationSelected: (index) {
        Navigator.pop(context);
        _onDestinationSelected(context, index);
      },
      children: [
        Padding(
          padding: const EdgeInsets.fromLTRB(28, 16, 16, 10),
          child: Text(
            isAdmin ? '관리자 메뉴' : '메뉴',
            style: context.textTheme.titleSmall,
          ),
        ),
        ..._getDrawerDestinations(),
      ],
    );
  }

  int _getSelectedIndex() {
    if (isAdmin) {
      if (currentPath.contains('/admin/home')) return 0;
      if (currentPath.contains('/admin/users')) return 1;
      if (currentPath.contains('/admin/dashboard')) return 2;
      if (currentPath.contains('/admin/settings')) return 3;
    } else {
      if (currentPath.contains('/user/home')) return 0;
      if (currentPath.contains('/user/profile')) return 1;
      if (currentPath.contains('/user/dashboard')) return 2;
    }
    return 0;
  }

  void _onDestinationSelected(BuildContext context, int index) {
    if (isAdmin) {
      switch (index) {
        case 0:
          context.goNamed(RouteNames.adminHome);
        case 1:
          context.goNamed(RouteNames.adminUsers);
        case 2:
          context.goNamed(RouteNames.adminDashboard);
        case 3:
          context.goNamed(RouteNames.adminSettings);
      }
    } else {
      switch (index) {
        case 0:
          context.goNamed(RouteNames.userHome);
        case 1:
          context.goNamed(RouteNames.userProfile);
        case 2:
          context.goNamed(RouteNames.userDashboard);
      }
    }
  }

  List<NavigationRailDestination> _getDestinations() {
    if (isAdmin) {
      return const [
        NavigationRailDestination(
          icon: Icon(Icons.home_outlined),
          selectedIcon: Icon(Icons.home),
          label: Text('홈'),
        ),
        NavigationRailDestination(
          icon: Icon(Icons.people_outlined),
          selectedIcon: Icon(Icons.people),
          label: Text('사용자 관리'),
        ),
        NavigationRailDestination(
          icon: Icon(Icons.dashboard_outlined),
          selectedIcon: Icon(Icons.dashboard),
          label: Text('대시보드'),
        ),
        NavigationRailDestination(
          icon: Icon(Icons.settings_outlined),
          selectedIcon: Icon(Icons.settings),
          label: Text('설정'),
        ),
      ];
    }
    return const [
      NavigationRailDestination(
        icon: Icon(Icons.home_outlined),
        selectedIcon: Icon(Icons.home),
        label: Text('홈'),
      ),
      NavigationRailDestination(
        icon: Icon(Icons.person_outlined),
        selectedIcon: Icon(Icons.person),
        label: Text('프로필'),
      ),
      NavigationRailDestination(
        icon: Icon(Icons.dashboard_outlined),
        selectedIcon: Icon(Icons.dashboard),
        label: Text('대시보드'),
      ),
    ];
  }

  List<NavigationDrawerDestination> _getDrawerDestinations() {
    if (isAdmin) {
      return const [
        NavigationDrawerDestination(
          icon: Icon(Icons.home_outlined),
          selectedIcon: Icon(Icons.home),
          label: Text('홈'),
        ),
        NavigationDrawerDestination(
          icon: Icon(Icons.people_outlined),
          selectedIcon: Icon(Icons.people),
          label: Text('사용자 관리'),
        ),
        NavigationDrawerDestination(
          icon: Icon(Icons.dashboard_outlined),
          selectedIcon: Icon(Icons.dashboard),
          label: Text('대시보드'),
        ),
        NavigationDrawerDestination(
          icon: Icon(Icons.settings_outlined),
          selectedIcon: Icon(Icons.settings),
          label: Text('설정'),
        ),
      ];
    }
    return const [
      NavigationDrawerDestination(
        icon: Icon(Icons.home_outlined),
        selectedIcon: Icon(Icons.home),
        label: Text('홈'),
      ),
      NavigationDrawerDestination(
        icon: Icon(Icons.person_outlined),
        selectedIcon: Icon(Icons.person),
        label: Text('프로필'),
      ),
      NavigationDrawerDestination(
        icon: Icon(Icons.dashboard_outlined),
        selectedIcon: Icon(Icons.dashboard),
        label: Text('대시보드'),
      ),
    ];
  }
}