238 lines
9.1 KiB
Dart
238 lines
9.1 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter/gestures.dart';
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import '../services/auth_service.dart';
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class LoginPage extends StatefulWidget {
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const LoginPage({super.key});
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@override
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_LoginPageState createState() => _LoginPageState();
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}
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class _LoginPageState extends State<LoginPage> {
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final _formKey = GlobalKey<FormState>();
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final _authService = AuthService();
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String username = '';
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String password = '';
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String errorMessage = '';
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bool _showNotRegisteredMessage = false;
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bool _obscurePassword = true;
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String _mapErrorCodeToMessage(String code) {
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switch (code) {
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case 'user-not-found':
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return 'Username belum terdaftar, silakan daftar terlebih dahulu.';
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case 'wrong-password':
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return 'Password salah. Silakan coba lagi.';
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case 'invalid-email':
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return 'Format username salah.';
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case 'network-request-failed':
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return 'Tidak ada koneksi internet.';
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default:
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return 'Terjadi kesalahan: $code';
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}
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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backgroundColor: Colors.green[700],
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title: const Text('LOGIN'),
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centerTitle: true,
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leading: IconButton(
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icon: const Icon(Icons.arrow_back),
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onPressed: () {
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Navigator.pushReplacementNamed(context, '/dashboard_public');
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},
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),
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),
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body: Stack(
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children: [
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// Banyak lingkaran besar dan semi transparan
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..._buildCircleDecorations(),
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// Form Login
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SingleChildScrollView(
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padding: const EdgeInsets.all(24),
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child: Center(
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child: Column(
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children: [
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const SizedBox(height: 40),
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const Icon(Icons.lock_outline, size: 80, color: Colors.green),
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const SizedBox(height: 12),
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const Text(
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'Selamat Datang',
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style: TextStyle(
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fontSize: 24,
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fontWeight: FontWeight.bold,
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color: Colors.green,
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),
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),
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const SizedBox(height: 32),
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Container(
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padding: const EdgeInsets.all(24),
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decoration: BoxDecoration(
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color: Colors.white.withOpacity(0.95),
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borderRadius: BorderRadius.circular(20),
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boxShadow: const [
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BoxShadow(
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color: Colors.black12,
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blurRadius: 8,
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offset: Offset(0, 4),
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),
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],
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),
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child: Form(
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key: _formKey,
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child: Column(
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children: [
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TextFormField(
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decoration: const InputDecoration(
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labelText: 'Username',
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border: OutlineInputBorder(),
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),
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onChanged: (val) {
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setState(() {
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username = val.trim();
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_showNotRegisteredMessage = false;
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errorMessage = '';
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});
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},
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validator: (val) =>
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val == null || val.isEmpty ? 'Masukkan username' : null,
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),
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const SizedBox(height: 16),
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TextFormField(
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decoration: InputDecoration(
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labelText: 'Password',
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border: const OutlineInputBorder(),
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suffixIcon: IconButton(
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icon: Icon(
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_obscurePassword
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? Icons.visibility_off
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: Icons.visibility,
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color: Colors.green,
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),
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onPressed: () {
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setState(() {
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_obscurePassword = !_obscurePassword;
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});
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},
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),
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),
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obscureText: _obscurePassword,
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onChanged: (val) {
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setState(() {
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password = val.trim();
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errorMessage = '';
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});
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},
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validator: (val) => val == null || val.length < 6
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? 'Password minimal 6 karakter'
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: null,
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),
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const SizedBox(height: 24),
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ElevatedButton.icon(
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style: ElevatedButton.styleFrom(
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backgroundColor: Colors.green[700],
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foregroundColor: Colors.white,
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minimumSize: const Size(double.infinity, 48),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(10),
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),
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),
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icon: const Icon(Icons.login),
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label: const Text('Login'),
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onPressed: () async {
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if (_formKey.currentState!.validate()) {
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String? result =
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await _authService.login(username, password);
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if (result == null) {
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Navigator.pushReplacementNamed(context, '/home');
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} else {
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setState(() {
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errorMessage = _mapErrorCodeToMessage(result);
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_showNotRegisteredMessage =
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result == 'user-not-found';
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});
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}
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}
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},
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),
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const SizedBox(height: 12),
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RichText(
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text: TextSpan(
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text: 'Belum punya akun? ',
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style: const TextStyle(color: Colors.black),
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children: [
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TextSpan(
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text: 'Register',
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style: const TextStyle(
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color: Colors.green,
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fontWeight: FontWeight.bold,
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decoration: TextDecoration.underline,
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),
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recognizer: TapGestureRecognizer()
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..onTap = () {
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Navigator.pushNamed(context, '/register');
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},
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),
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],
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),
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),
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if (errorMessage.isNotEmpty)
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Padding(
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padding: const EdgeInsets.only(top: 16),
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child: Text(
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errorMessage,
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style: TextStyle(
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color: _showNotRegisteredMessage
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? Colors.red[700]
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: Colors.red,
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fontStyle: FontStyle.italic,
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),
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textAlign: TextAlign.center,
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),
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),
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],
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),
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),
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),
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],
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),
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),
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),
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],
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),
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);
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}
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List<Widget> _buildCircleDecorations() {
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final size = MediaQuery.of(context).size;
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final List<Offset> positions = List.generate(
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40,
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(index) => Offset(
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(index * 50 + 30) % size.width,
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(index * 80 + 70) % size.height,
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),
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);
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return positions
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.map((pos) => Positioned(
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top: pos.dy,
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left: pos.dx,
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child: _circle(24, Colors.green.shade100.withOpacity(0.3)),
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))
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.toList();
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}
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Widget _circle(double size, Color color) {
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return Container(
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width: size,
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height: size,
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decoration: BoxDecoration(color: color, shape: BoxShape.circle),
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);
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}
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}
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