import 'package:flutter/material.dart';

void main() {
  runApp(const RimWorldModManager());
}

class RimWorldModManager extends StatelessWidget {
  const RimWorldModManager({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'RimWorld Mod Manager',
      theme: ThemeData.dark().copyWith(
        primaryColor: const Color(0xFF3D4A59),
        colorScheme: ColorScheme.fromSeed(
          seedColor: const Color(0xFF3D4A59),
          brightness: Brightness.dark,
        ),
        scaffoldBackgroundColor: const Color(0xFF1E262F),
        cardColor: const Color(0xFF2A3440),
        appBarTheme: const AppBarTheme(
          backgroundColor: Color(0xFF2A3440),
          foregroundColor: Colors.white,
        ),
      ),
      home: const ModManagerHomePage(),
    );
  }
}

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

  @override
  State<ModManagerHomePage> createState() => _ModManagerHomePageState();
}

class _ModManagerHomePageState extends State<ModManagerHomePage> {
  int _selectedIndex = 0;
  
  final List<Widget> _pages = [
    const ModListPage(),
    const LoadOrderPage(),
    const TroubleshootingPage(),
  ];

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('RimWorld Mod Manager'),
      ),
      body: _pages[_selectedIndex],
      bottomNavigationBar: BottomNavigationBar(
        currentIndex: _selectedIndex,
        onTap: (index) {
          setState(() {
            _selectedIndex = index;
          });
        },
        items: const [
          BottomNavigationBarItem(
            icon: Icon(Icons.list),
            label: 'Mods',
          ),
          BottomNavigationBarItem(
            icon: Icon(Icons.reorder),
            label: 'Load Order',
          ),
          BottomNavigationBarItem(
            icon: Icon(Icons.build),
            label: 'Troubleshoot',
          ),
        ],
      ),
    );
  }
}

// Page to display all installed mods with enable/disable toggles
class ModListPage extends StatelessWidget {
  const ModListPage({super.key});

  @override
  Widget build(BuildContext context) {
    return Center(
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          const Icon(Icons.extension, size: 64),
          const SizedBox(height: 16),
          Text(
            'Mod List',
            style: Theme.of(context).textTheme.headlineMedium,
          ),
          const SizedBox(height: 16),
          Text(
            'Here you\'ll see your installed mods.',
            style: Theme.of(context).textTheme.bodyLarge,
          ),
          const SizedBox(height: 24),
          ElevatedButton(
            onPressed: () {
              // TODO: Implement mod scanning functionality
            },
            child: const Text('Scan for Mods'),
          ),
        ],
      ),
    );
  }
}

// Page to manage mod load order with dependency visualization
class LoadOrderPage extends StatelessWidget {
  const LoadOrderPage({super.key});

  @override
  Widget build(BuildContext context) {
    return Center(
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          const Icon(Icons.reorder, size: 64),
          const SizedBox(height: 16),
          Text(
            'Load Order',
            style: Theme.of(context).textTheme.headlineMedium,
          ),
          const SizedBox(height: 16),
          Text(
            'Manage your mod loading order with dependency resolution.',
            style: Theme.of(context).textTheme.bodyLarge,
            textAlign: TextAlign.center,
          ),
          const SizedBox(height: 24),
          ElevatedButton(
            onPressed: () {
              // TODO: Implement automatic load order sorting
            },
            child: const Text('Auto-sort Mods'),
          ),
        ],
      ),
    );
  }
}

// Page for troubleshooting problematic mods
class TroubleshootingPage extends StatelessWidget {
  const TroubleshootingPage({super.key});

  @override
  Widget build(BuildContext context) {
    return Center(
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          const Icon(Icons.build, size: 64),
          const SizedBox(height: 16),
          Text(
            'Troubleshooting',
            style: Theme.of(context).textTheme.headlineMedium,
          ),
          const SizedBox(height: 16),
          Padding(
            padding: const EdgeInsets.symmetric(horizontal: 32.0),
            child: Text(
              'Find problematic mods with smart batch testing.',
              style: Theme.of(context).textTheme.bodyLarge,
              textAlign: TextAlign.center,
            ),
          ),
          const SizedBox(height: 24),
          ElevatedButton(
            onPressed: () {
              // TODO: Implement troubleshooting wizard
            },
            child: const Text('Start Troubleshooting'),
          ),
        ],
      ),
    );
  }
}