import 'package:flutter/material.dart';
import '../services/supabase_service.dart';

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

  @override
  State<LoginScreen> createState() => _LoginScreenState();
}

class _LoginScreenState extends State<LoginScreen> {
  final _emailController = TextEditingController();
  final _passwordController = TextEditingController();
  bool _isLoading = false;

  Future<void> _handleLogin() async {
    setState(() => _isLoading = true);
    try {
      await SupabaseService().signIn(
        _emailController.text.trim(),
        _passwordController.text.trim(),
      );
      if (mounted) {
        Navigator.pushReplacementNamed(context, '/home');
      }
    } catch (e) {
      if (mounted) {
        ScaffoldMessenger.of(context).showSnackBar(
          SnackBar(content: Text('Error: $e'), backgroundColor: Colors.red),
        );
      }
    } finally {
      if (mounted) setState(() => _isLoading = false);
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.black,
      body: SingleChildScrollView(
        child: Padding(
          padding: const EdgeInsets.symmetric(horizontal: 30.0, vertical: 80.0),
          child: Column(
            children: [
              const CircleAvatar(
                radius: 60,
                backgroundColor: Color(0xFF1A1A1A),
                child: Icon(Icons.coffee, size: 60, color: Colors.orange),
              ),
              const SizedBox(height: 30),
              const Text(
                'Selamat Datang',
                style: TextStyle(color: Colors.green, fontSize: 32, fontWeight: FontWeight.bold),
              ),
              const Text(
                'Sistem Kendali Pengering Kopi',
                style: TextStyle(color: Colors.grey, fontSize: 16),
              ),
              const SizedBox(height: 50),
              Container(
                padding: const EdgeInsets.all(20),
                decoration: BoxDecoration(
                  color: const Color(0xFF1A1A1A),
                  borderRadius: BorderRadius.circular(25),
                  border: Border.all(color: Colors.grey.withOpacity(0.3)),
                ),
                child: Column(
                  children: [
                    TextField(
                      controller: _emailController,
                      style: const TextStyle(color: Colors.white),
                      decoration: const InputDecoration(
                        prefixIcon: Icon(Icons.email, color: Colors.green),
                        hintText: 'Email',
                        hintStyle: TextStyle(color: Colors.grey),
                        border: InputBorder.none,
                      ),
                    ),
                    const Divider(color: Colors.grey),
                    TextField(
                      controller: _passwordController,
                      obscureText: true,
                      style: const TextStyle(color: Colors.white),
                      decoration: const InputDecoration(
                        prefixIcon: Icon(Icons.lock, color: Colors.green),
                        suffixIcon: Icon(Icons.visibility, color: Colors.grey),
                        hintText: 'Password',
                        hintStyle: TextStyle(color: Colors.grey),
                        border: InputBorder.none,
                      ),
                    ),
                    const SizedBox(height: 30),
                    SizedBox(
                      width: double.infinity,
                      height: 55,
                      child: ElevatedButton(
                        onPressed: _isLoading ? null : _handleLogin,
                        style: ElevatedButton.styleFrom(
                          backgroundColor: Colors.green,
                          shape: RoundedRectangleBorder(
                            borderRadius: BorderRadius.circular(15),
                          ),
                        ),
                        child: _isLoading
                            ? const CircularProgressIndicator(color: Colors.white)
                            : const Text(
                                'Masuk ke Akun',
                                style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold, color: Colors.white),
                              ),
                      ),
                    ),
                  ],
                ),
              ),
              const SizedBox(height: 30),
              TextButton(
                onPressed: () => Navigator.pushNamed(context, '/register'),
                child: const Text(
                  'Belum punya akun? Daftar Sekarang',
                  style: TextStyle(color: Colors.green),
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }
}