Sistem-Pakar-Diagnosa-Penyakit-Hama-Bayam/frontend/lib/user/register_page.dart

import 'package:flutter/material.dart';
import 'package:SIBAYAM/api_services/api_services.dart';

// Halaman Pendaftaran
class RegisterPage extends StatefulWidget {
  @override
  _RegisterPageState createState() => _RegisterPageState();
}

class _RegisterPageState extends State<RegisterPage> {
  final TextEditingController nameController = TextEditingController();
  final TextEditingController emailController = TextEditingController();
  final TextEditingController passwordController = TextEditingController();
  final TextEditingController alamatController = TextEditingController();
  final TextEditingController nomorHpController = TextEditingController();
  bool _isLoading = false;

  final ApiService apiService = ApiService();

  void _showErrorDialog(String message) {
    showDialog(
      context: context,
      builder: (context) => AlertDialog(
        title: Row(
          children: [
            Icon(Icons.error_outline, color: Colors.red),
            SizedBox(width: 10),
            Text('Registrasi Gagal'),
          ],
        ),
        content: Text(message),
        actions: [
          TextButton(
            onPressed: () => Navigator.of(context).pop(),
            child: Text(
              'OK',
              style: TextStyle(color: Color(0xFF9DC08D)),
            ),
          ),
        ],
        shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.circular(15),
        ),
      ),
    );
  }

  void _showSuccessDialog() {
    showDialog(
      context: context,
      builder: (context) => AlertDialog(
        title: Row(
          children: [
            Icon(Icons.check_circle, color: Color(0xFF9DC08D)),
            SizedBox(width: 10),
            Text('Berhasil'),
          ],
        ),
        content: Text('Registrasi berhasil! Silahkan login dengan akun Anda.'),
        actions: [
          TextButton(
            onPressed: () {
              Navigator.of(context).pop(); // Close dialog
              Navigator.of(context).pop(); // Back to login page
            },
            child: Text(
              'OK',
              style: TextStyle(color: Color(0xFF9DC08D)),
            ),
          ),
        ],
        shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.circular(15),
        ),
      ),
    );
  }

  Future<void> _handleRegister() async {
    // Validasi input
    if (nameController.text.isEmpty ||
        emailController.text.isEmpty ||
        passwordController.text.isEmpty ||
        alamatController.text.isEmpty) {
      _showErrorDialog('Semua field harus diisi');
      return;
    }

    setState(() {
      _isLoading = true;
    });

    try {
      await apiService.registerUser(
        name: nameController.text,
        email: emailController.text,
        password: passwordController.text,
        alamat: alamatController.text,
        nomorTelepon: nomorHpController.text,
      );
      _showSuccessDialog();
    } catch (e) {
      _showErrorDialog(e.toString());
    } finally {
      setState(() {
        _isLoading = false;
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Color(0xFF9DC08D),
      appBar: AppBar(
        backgroundColor: Color(0xFF9DC08D),
        title: Text('Pendaftaran'),
      ),
      body: Center(
        child: SingleChildScrollView(
          child: Padding(
            padding: const EdgeInsets.symmetric(horizontal: 20.0),
            child: Card(
              shape: RoundedRectangleBorder(
                borderRadius: BorderRadius.circular(15),
              ),
              elevation: 5,
              child: Padding(
                padding: const EdgeInsets.all(20.0),
                child: Column(
                  children: [
                    TextField(
                      decoration: InputDecoration(
                        labelText: 'Nama',
                        labelStyle: TextStyle(color: Colors.black.withOpacity(0.7)),
                        border: OutlineInputBorder(
                          borderRadius: BorderRadius.circular(10),
                        ),
                        focusedBorder: OutlineInputBorder(
                          borderRadius: BorderRadius.circular(10),
                          borderSide: BorderSide(color: Colors.black.withOpacity(0.6), width: 2),
                        ),
                      ),
                      controller: nameController,
                    ),
                    SizedBox(height: 20),
                    TextField(
                      obscureText: true,
                      decoration: InputDecoration(
                        labelText: 'Password',
                        labelStyle: TextStyle(color: Colors.black.withOpacity(0.7)),
                        border: OutlineInputBorder(
                          borderRadius: BorderRadius.circular(10),
                        ),
                        focusedBorder: OutlineInputBorder(
                          borderRadius: BorderRadius.circular(10),
                          borderSide: BorderSide(color: Colors.black.withOpacity(0.6), width: 2),
                        ),
                      ),
                      controller: passwordController,
                    ),
                    SizedBox(height: 20),
                    TextField(
                      decoration: InputDecoration(
                        labelText: 'Email',
                        labelStyle: TextStyle(color: Colors.black.withOpacity(0.7)),
                        border: OutlineInputBorder(
                          borderRadius: BorderRadius.circular(10),
                        ),
                        focusedBorder: OutlineInputBorder(
                          borderRadius: BorderRadius.circular(10),
                          borderSide: BorderSide(color: Colors.black.withOpacity(0.6), width: 2),
                        ),
                      ),
                      controller: emailController,
                    ),
                    SizedBox(height: 20),
                    TextField(
                      decoration: InputDecoration(
                        labelText: 'Alamat',
                        labelStyle: TextStyle(color: Colors.black.withOpacity(0.7)),
                        border: OutlineInputBorder(
                          borderRadius: BorderRadius.circular(10),
                        ),
                        focusedBorder: OutlineInputBorder(
                          borderRadius: BorderRadius.circular(10),
                          borderSide: BorderSide(color: Colors.black.withOpacity(0.6), width: 2),
                        ),
                      ),
                      controller: alamatController,
                    ),
                    SizedBox(height: 20),
                    // TextField(
                    //   decoration: InputDecoration(
                    //     labelText: 'Nomor HP',
                    //     labelStyle: TextStyle(color: Colors.black.withOpacity(0.7)),
                    //     border: OutlineInputBorder(
                    //       borderRadius: BorderRadius.circular(10),
                    //     ),
                    //     focusedBorder: OutlineInputBorder(
                    //       borderRadius: BorderRadius.circular(10),
                    //       borderSide: BorderSide(color: Colors.black.withOpacity(0.6), width: 2),
                    //     ),
                    //   ),
                    //   controller: nomorHpController,
                    // ),
                    SizedBox(height: 20),
                    SizedBox(
                      width: double.infinity,
                      height: 50,
                      child: ElevatedButton(
                        style: ElevatedButton.styleFrom(
                          backgroundColor: Colors.green,
                          shape: RoundedRectangleBorder(
                            borderRadius: BorderRadius.circular(10),
                          ),
                        ),
                        onPressed: _isLoading ? null : _handleRegister,
                        child: _isLoading
                            ? CircularProgressIndicator(color: Colors.white)
                            : Text(
                                'Daftar',
                                style: TextStyle(
                                  color: Colors.white,
                                  fontSize: 16,
                                  fontWeight: FontWeight.bold,
                                ),
                              ),
                      ),
                    ),
                  ],
                ),
              ),
            ),
          ),
        ),
      ),
    );
  }
}