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

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

  @override
  State<HomeScreen> createState() => _HomeScreenState();
}

class _HomeScreenState extends State<HomeScreen> {
  int _selectedIndex = 0;

  final List<Widget> _screens = [
    const _HomeContent(),
    const _ItemsScreen(),
    const _WeekScreen(),
    const _ProfileScreen(),
  ];

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: const Color(0xFFFFE5CC),
      body: _screens[_selectedIndex],
      bottomNavigationBar: BottomNavigationBar(
        currentIndex: _selectedIndex,
        onTap: (index) => setState(() => _selectedIndex = index),
        selectedItemColor: const Color(0xFF0066CC),
        unselectedItemColor: const Color(0xFF666666),
        backgroundColor: Colors.white,
        type: BottomNavigationBarType.fixed,
        items: const [
          BottomNavigationBarItem(icon: Icon(Icons.home), label: 'Início'),
          BottomNavigationBarItem(
            icon: Icon(Icons.inventory_2_outlined),
            label: 'Itens',
          ),
          BottomNavigationBarItem(
            icon: Icon(Icons.calendar_today_outlined),
            label: 'Semana',
          ),
          BottomNavigationBarItem(
            icon: Icon(Icons.person_outline),
            label: 'Perfil',
          ),
        ],
      ),
    );
  }
}

class _HomeContent extends StatelessWidget {
  const _HomeContent();

  @override
  Widget build(BuildContext context) {
    return SafeArea(
      child: Stack(
        children: [
          Column(
            children: [
              // App Bar
              Container(
                color: const Color(0xFF0066CC),
                padding: const EdgeInsets.symmetric(
                  horizontal: 20,
                  vertical: 16,
                ),
                child: Row(
                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
                  children: [
                    const Column(
                      crossAxisAlignment: CrossAxisAlignment.start,
                      children: [
                        Text(
                          'DayMaker',
                          style: TextStyle(
                            color: Colors.white,
                            fontSize: 24,
                            fontWeight: FontWeight.bold,
                          ),
                        ),
                        SizedBox(height: 4),
                        Text(
                          '6 itens',
                          style: TextStyle(color: Colors.white70, fontSize: 14),
                        ),
                      ],
                    ),
                    IconButton(
                      icon: const Icon(
                        Icons.notifications_outlined,
                        color: Colors.white,
                      ),
                      onPressed: () {
                        ScaffoldMessenger.of(context).showSnackBar(
                          const SnackBar(
                            content: Text('Notificações'),
                            backgroundColor: Color(0xFF0066CC),
                          ),
                        );
                      },
                    ),
                  ],
                ),
              ),

              Expanded(
                child: SingleChildScrollView(
                  padding: const EdgeInsets.all(20),
                  child: Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      // Today Section
                      Container(
                        padding: const EdgeInsets.all(16),
                        decoration: BoxDecoration(
                          color: Colors.white,
                          borderRadius: BorderRadius.circular(12),
                        ),
                        child: Column(
                          crossAxisAlignment: CrossAxisAlignment.start,
                          children: [
                            const Text(
                              'Hoje - Sexta',
                              style: TextStyle(
                                fontSize: 18,
                                fontWeight: FontWeight.bold,
                                color: Color(0xFF0066CC),
                              ),
                            ),
                            const SizedBox(height: 8),
                            const Text(
                              '2 itens planejados',
                              style: TextStyle(
                                fontSize: 14,
                                color: Color(0xFF666666),
                              ),
                            ),
                            const SizedBox(height: 16),
                            // Placeholder for planned items
                            Container(
                              height: 80,
                              decoration: BoxDecoration(
                                color: const Color(0xFFF5F5F5),
                                borderRadius: BorderRadius.circular(8),
                              ),
                              child: const Center(
                                child: Text(
                                  'Itens planejados aparecerão aqui',
                                  style: TextStyle(color: Color(0xFF999999)),
                                ),
                              ),
                            ),
                          ],
                        ),
                      ),

                      const SizedBox(height: 24),

                      // AI Recommendations Button
                      Container(
                        width: double.infinity,
                        padding: const EdgeInsets.all(20),
                        decoration: BoxDecoration(
                          color: const Color(0xFF0066CC),
                          borderRadius: BorderRadius.circular(12),
                        ),
                        child: Column(
                          crossAxisAlignment: CrossAxisAlignment.start,
                          children: [
                            const Text(
                              'Recomendações IA',
                              style: TextStyle(
                                color: Colors.white,
                                fontSize: 20,
                                fontWeight: FontWeight.bold,
                              ),
                            ),
                            const SizedBox(height: 4),
                            const Text(
                              'Descubra o que levar',
                              style: TextStyle(
                                color: Colors.white70,
                                fontSize: 14,
                              ),
                            ),
                            const SizedBox(height: 12),
                            Row(
                              children: [
                                const Icon(
                                  Icons.auto_awesome,
                                  color: Colors.white,
                                  size: 20,
                                ),
                                const SizedBox(width: 8),
                                Expanded(
                                  child: Container(
                                    height: 4,
                                    decoration: BoxDecoration(
                                      color: Colors.white30,
                                      borderRadius: BorderRadius.circular(2),
                                    ),
                                  ),
                                ),
                              ],
                            ),
                          ],
                        ),
                      ),

                      const SizedBox(height: 24),

                      // Recent Items Section
                      const Text(
                        'Itens Recentes',
                        style: TextStyle(
                          fontSize: 18,
                          fontWeight: FontWeight.bold,
                          color: Color(0xFF333333),
                        ),
                      ),
                      const SizedBox(height: 16),

                      // Placeholder for recent items
                      Container(
                        height: 100,
                        decoration: BoxDecoration(
                          color: Colors.white,
                          borderRadius: BorderRadius.circular(12),
                          border: Border.all(color: const Color(0xFFE0E0E0)),
                        ),
                        child: const Center(
                          child: Text(
                            'Itens recentes aparecerão aqui',
                            style: TextStyle(color: Color(0xFF999999)),
                          ),
                        ),
                      ),
                    ],
                  ),
                ),
              ),
            ],
          ),

          // Floating Action Button
          Positioned(
            bottom: 80,
            right: 20,
            child: FloatingActionButton(
              onPressed: () {
                ScaffoldMessenger.of(context).showSnackBar(
                  const SnackBar(
                    content: Text('Adicionar novo item'),
                    backgroundColor: Color(0xFF0066CC),
                  ),
                );
              },
              backgroundColor: const Color(0xFF0066CC),
              child: const Icon(Icons.add, color: Colors.white),
            ),
          ),
        ],
      ),
    );
  }
}

class _ItemsScreen extends StatelessWidget {
  const _ItemsScreen();

  @override
  Widget build(BuildContext context) {
    return const Center(child: Text('Itens'));
  }
}

class _WeekScreen extends StatelessWidget {
  const _WeekScreen();

  @override
  Widget build(BuildContext context) {
    return const Center(child: Text('Semana'));
  }
}

class _ProfileScreen extends StatelessWidget {
  const _ProfileScreen();

  @override
  Widget build(BuildContext context) {
    return const PerfilScreen();
  }
}