forked from baron/baron-sso
396 lines
14 KiB
Dart
396 lines
14 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:google_fonts/google_fonts.dart';
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import 'package:descope/descope.dart';
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import 'package:go_router/go_router.dart';
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import 'package:url_launcher/url_launcher_string.dart';
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import '../../../core/services/audit_service.dart';
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import '../../../core/services/web_auth_integration.dart';
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import '../../../core/services/auth_proxy_service.dart';
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class LoginScreen extends ConsumerStatefulWidget {
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const LoginScreen({super.key});
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@override
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ConsumerState<LoginScreen> createState() => _LoginScreenState();
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}
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class _LoginScreenState extends ConsumerState<LoginScreen>
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with SingleTickerProviderStateMixin {
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late TabController _tabController;
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final TextEditingController _emailController = TextEditingController();
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final TextEditingController _passwordController = TextEditingController();
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final TextEditingController _phoneController = TextEditingController();
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final TextEditingController _smsCodeController = TextEditingController();
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bool _smsSent = false;
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@override
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void initState() {
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super.initState();
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_tabController = TabController(length: 2, vsync: this);
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// Check for 't' token in URL (Magic Link / Enchanted Link verification)
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WidgetsBinding.instance.addPostFrameCallback((_) {
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final uri = Uri.base;
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if (uri.queryParameters.containsKey('t')) {
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_verifyToken(uri.queryParameters['t']!);
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}
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});
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}
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Future<void> _verifyToken(String token) async {
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try {
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// Use Proxy to verify token
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await AuthProxyService.verifyMagicLink(token);
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if (mounted) {
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_showSuccessDialog();
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}
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} catch (e) {
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// Ignore "Missing session JWT" if it happens (though proxy might handle it differently)
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if (e.toString().contains("Missing session JWT")) {
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if (mounted) _showSuccessDialog();
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return;
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}
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if (mounted) {
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_showError("Verification failed: $e");
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}
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}
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}
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void _showSuccessDialog() {
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showDialog(
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context: context,
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barrierDismissible: false,
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builder: (context) => const AlertDialog(
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title: Text("Authentication Successful"),
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content: Text("You can close this tab and return to the application."),
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),
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);
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}
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@override
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void dispose() {
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_tabController.dispose();
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_emailController.dispose();
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_passwordController.dispose();
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_phoneController.dispose();
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_smsCodeController.dispose();
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super.dispose();
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}
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Future<void> _handleEmailLogin() async {
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final email = _emailController.text.trim();
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if (email.isEmpty) return;
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final password = _passwordController.text;
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if (password.isNotEmpty) {
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// Email + Password Flow (Keep SDK as is, assuming Password flow might work or fail same way.
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// If password flow fails too, we need proxy for that as well. But let's focus on Enchanted Link first as requested.)
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try {
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final authResponse = await Descope.password.signIn(
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loginId: email,
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password: password,
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);
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final session = DescopeSession.fromAuthenticationResponse(authResponse);
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Descope.sessionManager.manageSession(session);
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await AuditService.logEvent(
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userId: session.user?.userId ?? email,
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eventType: 'login_success',
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status: 'success',
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details: 'Method: Email/Password',
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);
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if (mounted) {
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final token = session.sessionToken.jwt;
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if (WebAuthIntegration.isPopup()) {
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WebAuthIntegration.sendLoginSuccess(token);
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_showError("Login Successful! You can close this window.");
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} else {
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context.go('/dashboard');
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}
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}
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} catch (e) {
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_showError("Email/Password Login Failed: $e");
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}
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} else {
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// Enchanted Link Flow (via Proxy)
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try {
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// 1. Init via Proxy
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final initData = await AuthProxyService.initEnchantedLink(email);
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final linkId = initData['linkId'];
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final pendingRef = initData['pendingRef'];
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if (mounted) {
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showDialog(
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context: context,
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barrierDismissible: false,
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builder: (context) => AlertDialog(
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title: const Text("Check your Email"),
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content: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Text("We sent an email to $email"),
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const SizedBox(height: 16),
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Text(
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"Security Number: $linkId",
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style: const TextStyle(fontSize: 24, fontWeight: FontWeight.bold, color: Colors.blue),
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),
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const SizedBox(height: 8),
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const Text("Click the matching number in your email."),
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const SizedBox(height: 16),
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const LinearProgressIndicator(),
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const SizedBox(height: 16),
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],
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),
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),
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);
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// 2. Poll via Proxy (Loop until success or timeout)
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String sessionToken = "";
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int attempts = 0;
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const maxAttempts = 60; // 2 minutes (assuming 2s delay)
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while (attempts < maxAttempts && mounted) {
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attempts++;
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try {
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final pollData = await AuthProxyService.pollEnchantedLink(pendingRef);
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// Send log to backend
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// AuthProxyService.logError("[DEBUG] Poll response keys: ${pollData.keys.toList()}");
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// Descope API returns 'sessionJwt', not 'sessionToken'
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var tokenObj = pollData['sessionJwt'] ?? pollData['sessionToken'];
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if (tokenObj != null) {
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if (tokenObj is Map) {
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sessionToken = tokenObj['jwt'] ?? "";
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} else if (tokenObj is String) {
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sessionToken = tokenObj;
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}
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}
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if (sessionToken.isNotEmpty) {
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break; // Success!
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}
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} catch (e) {
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// Check if it's the "pending" error. If so, continue.
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// The error message from backend is likely a string in exception.
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// A robust implementation would parse the error code.
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// For PoC, we just assume any error means "not ready yet" unless it's a fatal one.
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// Let's print debug but continue.
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print("Polling attempt $attempts: Waiting... ($e)");
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}
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await Future.delayed(const Duration(seconds: 2));
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}
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if (sessionToken.isEmpty) {
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throw Exception("Polling timed out or failed.");
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}
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// Note: pollData structure depends on what Descope API returns.
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// Usually it returns full auth response.
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// Let's assume we get the JWT string directly or extract it.
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// The proxy just forwards the JSON. Descope /poll returns standard auth info.
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// Manually handle session if needed or just use token.
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// For PoC, we prioritize token handoff.
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await AuditService.logEvent(
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userId: email, // We might not have full user object yet
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eventType: 'login_success',
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status: 'success',
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details: 'Method: Email/EnchantedLink/Proxy',
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);
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if (mounted) {
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Navigator.of(context).pop(); // Close Dialog
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if (WebAuthIntegration.isPopup()) {
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WebAuthIntegration.sendLoginSuccess(sessionToken);
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_showError("Login Successful! You can close this window.");
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} else {
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// For dashboard, we might need to properly init Descope session.
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// Since we bypassed SDK, Descope.sessionManager.session is null.
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// We can try to hydrate it if SDK allows, or just ignore for now if this is primarily a Launcher.
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_showError("Login Successful (Standalone mode limited without SDK session)");
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// context.go('/dashboard');
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}
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}
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}
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} catch (e) {
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if (mounted && Navigator.canPop(context)) {
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// Close dialog if open? logic is tricky without state, but let's assume error means stop.
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Navigator.of(context).pop();
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}
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_showError("Enchanted Link Failed (Proxy): $e");
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}
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}
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}
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Future<void> _handleSmsLogin() async {
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final phone = _phoneController.text.trim();
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if (phone.isEmpty) return;
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try {
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await AuthProxyService.sendSms(phone);
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setState(() {
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_smsSent = true;
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});
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} catch (e) {
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_showError("Failed to send SMS: $e");
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}
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}
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Future<void> _handleSmsVerification() async {
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// For now, just show a success message
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_showSuccessDialog();
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}
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void _showError(String message) {
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if (!mounted) return;
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// Show Snackbar
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text(message), backgroundColor: Colors.red),
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);
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// Send log to backend for Docker visibility
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try {
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// Use AuthProxyService base URL logic or dotenv, but for simplicity here use relative or direct.
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// Since we are in the same network context as Proxy, we can assume localhost:3000 or relative path if deployed.
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// But Flutter Web runs in browser, so we need the full URL reachable from browser.
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// We'll use the same host logic as AuthProxyService (which uses dotenv BACKEND_URL).
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// Since we can't easily import http here without clutter, we'll invoke a helper method if available,
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// or just add the http call here. We already import AuthProxyService.
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// Let's add a log method to AuthProxyService to keep it clean.
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AuthProxyService.logError(message);
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} catch (e) {
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print("Failed to send log to backend: $e");
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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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body: Center(
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child: Container(
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constraints: const BoxConstraints(maxWidth: 400),
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padding: const EdgeInsets.all(24),
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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Text(
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"Baron SSO",
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style: GoogleFonts.outfit(
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fontSize: 32,
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fontWeight: FontWeight.bold,
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),
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textAlign: TextAlign.center,
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),
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const SizedBox(height: 40),
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// Tab Bar
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TabBar(
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controller: _tabController,
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tabs: const [
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Tab(text: "Email"),
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Tab(text: "Phone (SMS)"),
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],
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),
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const SizedBox(height: 24),
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// Tab View Content
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SizedBox(
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height: 300, // Slightly increased height for content
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child: TabBarView(
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controller: _tabController,
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children: [
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// Email/Password Form
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Column(
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children: [
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TextField(
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controller: _emailController,
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decoration: const InputDecoration(
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labelText: "Email",
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border: OutlineInputBorder(),
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prefixIcon: Icon(Icons.email_outlined),
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),
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),
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const SizedBox(height: 16),
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TextField(
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controller: _passwordController,
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obscureText: true,
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decoration: const InputDecoration(
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labelText: "Password",
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border: OutlineInputBorder(),
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prefixIcon: Icon(Icons.lock_outline),
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),
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),
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const SizedBox(height: 24),
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FilledButton(
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onPressed: _handleEmailLogin,
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style: FilledButton.styleFrom(
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minimumSize: const Size.fromHeight(50),
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),
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child: const Text("Sign In"),
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),
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],
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),
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// Phone/SMS Form
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Column(
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children: [
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if (!_smsSent) ...[
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TextField(
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controller: _phoneController,
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decoration: const InputDecoration(
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labelText: "Phone Number",
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hintText: "+82 10-1234-5678",
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border: OutlineInputBorder(),
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prefixIcon: Icon(Icons.phone_android),
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),
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),
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const SizedBox(height: 24),
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FilledButton(
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onPressed: _handleSmsLogin,
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style: FilledButton.styleFrom(
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minimumSize: const Size.fromHeight(50),
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),
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child: const Text("Send Verification Code"),
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),
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] else ...[
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TextField(
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controller: _smsCodeController,
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decoration: const InputDecoration(
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labelText: "Verification Code",
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border: OutlineInputBorder(),
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prefixIcon: Icon(Icons.password),
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),
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),
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const SizedBox(height: 24),
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FilledButton(
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onPressed: _handleSmsVerification,
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style: FilledButton.styleFrom(
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minimumSize: const Size.fromHeight(50),
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),
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child: const Text("Verify Code"),
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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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