// ignore_for_file: prefer_const_constructors, sort_child_properties_last

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

import '../../app/injection_container.dart';
import '../../core/services/stt_service.dart';
import '../../core/services/tts_service.dart';
import '../../core/services/voice_command_handler.dart';

class UserShell extends StatefulWidget {
  final Widget child;
  const UserShell({super.key, required this.child});

  @override
  State<UserShell> createState() => _UserShellState();
}

class _UserShellState extends State<UserShell> {
  @override
  void initState() {
    super.initState();
    sl<SttService>().startListening();
    sl<VoiceCommandHandler>().onCommand = (key) {
      if (!mounted) return;
      switch (key) {
        case VoiceCommandKey.openWalkguide:
        case VoiceCommandKey.startWalkguide:
          context.go('/user/walkguide');
          break;
        case VoiceCommandKey.openSos:
        case VoiceCommandKey.sendSos:
          context.go('/user/sos');
          break;
        case VoiceCommandKey.openActivity:
          context.go('/user/activity');
          break;
        case VoiceCommandKey.openNotification:
        case VoiceCommandKey.readAllNotif:
          context.go('/user/notifications');
          break;
        case VoiceCommandKey.openNavigation:
        case VoiceCommandKey.whereAmI:
          context.go('/user/navigation');
          break;
        case VoiceCommandKey.openSettings:
          context.go('/user/settings');
          break;
        case VoiceCommandKey.callGuardian:
          context.go('/user/call');
          break;
        case VoiceCommandKey.repeatLast:
        case VoiceCommandKey.stopTts:
        case VoiceCommandKey.stopWalkguide:
          break;
      }
      sl<TtsService>().speak(_spokenRouteName(key));
    };
  }

  @override
  Widget build(BuildContext context) {
    final location = GoRouterState.of(context).matchedLocation;
    final items = [
      _ShellItem('Guide', Icons.visibility_outlined, Icons.visibility,
          '/user/walkguide'),
      _ShellItem('SOS', Icons.warning_amber_outlined, Icons.warning_amber,
          '/user/sos'),
      _ShellItem(
          'Log', Icons.list_alt_outlined, Icons.list_alt, '/user/activity'),
      _ShellItem('Notif', Icons.notifications_outlined, Icons.notifications,
          '/user/notifications'),
      _ShellItem('Map', Icons.map_outlined, Icons.map, '/user/navigation'),
      _ShellItem(
          'Set', Icons.settings_outlined, Icons.settings, '/user/settings'),
    ];
    return _AppShell(child: widget.child, items: items, location: location);
  }
}

class GuardianShell extends StatelessWidget {
  final Widget child;
  const GuardianShell({super.key, required this.child});

  @override
  Widget build(BuildContext context) {
    final location = GoRouterState.of(context).matchedLocation;
    final items = [
      _ShellItem('Home', Icons.dashboard_outlined, Icons.dashboard,
          '/guardian/dashboard'),
      _ShellItem('Map', Icons.map_outlined, Icons.map, '/guardian/map'),
      _ShellItem('Logs', Icons.fact_check_outlined, Icons.fact_check,
          '/guardian/logs'),
      _ShellItem(
          'Send', Icons.send_outlined, Icons.send, '/guardian/send-notif'),
      _ShellItem('AI', Icons.tune_outlined, Icons.tune, '/guardian/ai-config'),
      _ShellItem(
          'Set', Icons.settings_outlined, Icons.settings, '/guardian/settings'),
    ];
    return _AppShell(child: child, items: items, location: location);
  }
}

class _AppShell extends StatelessWidget {
  final Widget child;
  final List<_ShellItem> items;
  final String location;

  const _AppShell(
      {required this.child, required this.items, required this.location});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: child,
      bottomNavigationBar: NavigationBar(
        selectedIndex: _selectedIndex,
        onDestinationSelected: (index) => context.go(items[index].route),
        destinations: [
          for (final item in items)
            NavigationDestination(
              icon: Icon(item.icon),
              selectedIcon: Icon(item.selectedIcon),
              label: item.label,
            ),
        ],
      ),
    );
  }

  int get _selectedIndex {
    final index = items.indexWhere((item) => location.startsWith(item.route));
    return index < 0 ? 0 : index;
  }
}

class _ShellItem {
  final String label;
  final IconData icon;
  final IconData selectedIcon;
  final String route;

  const _ShellItem(this.label, this.icon, this.selectedIcon, this.route);
}

String _spokenRouteName(VoiceCommandKey key) {
  switch (key) {
    case VoiceCommandKey.openWalkguide:
    case VoiceCommandKey.startWalkguide:
      return 'WalkGuide dibuka';
    case VoiceCommandKey.openSos:
    case VoiceCommandKey.sendSos:
      return 'SOS dibuka';
    case VoiceCommandKey.openActivity:
      return 'Activity log dibuka';
    case VoiceCommandKey.openNotification:
    case VoiceCommandKey.readAllNotif:
      return 'Notifikasi dibuka';
    case VoiceCommandKey.openNavigation:
    case VoiceCommandKey.whereAmI:
      return 'Navigasi dibuka';
    case VoiceCommandKey.openSettings:
      return 'Settings dibuka';
    case VoiceCommandKey.callGuardian:
      return 'Memanggil guardian';
    case VoiceCommandKey.repeatLast:
    case VoiceCommandKey.stopTts:
    case VoiceCommandKey.stopWalkguide:
      return '';
  }
}