Sicherhaven
1c73fb8d9d
New file: lib/core/auth/auth_guard.dart Static AuthGuard class with isGuest flag and requireLogin() helper that shows a login prompt bottom sheet when guests try protected actions. login_screen.dart / desktop_login_screen.dart: Added "Continue as Guest" button below sign-up link. Sets AuthGuard.isGuest = true, then navigates to HomeScreen. api_client.dart: _buildAuthBody() and GET auth check no longer throw when token is missing. If no token (guest), request proceeds without auth — backend decides. home_screen.dart: Bottom nav guards: tapping Contribute (index 2) or Profile (index 3) as guest shows login prompt instead of navigating. auth_service.dart: AuthGuard.setGuest(false) called on successful login AND register so guest flag is always cleared when user authenticates. Guest CAN: browse home, calendar, search, filter, view event details. Guest CANNOT: contribute, view profile, book events (prompts login).
72 lines
2.5 KiB
Dart
72 lines
2.5 KiB
Dart
// lib/core/auth/auth_guard.dart
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import 'package:flutter/material.dart';
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import '../../screens/login_screen.dart';
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class AuthGuard {
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static bool _isGuest = false;
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static bool get isGuest => _isGuest;
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static bool get isLoggedIn => !_isGuest;
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static void setGuest(bool value) => _isGuest = value;
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/// Call before any action that requires login.
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/// Returns true if logged in (proceed). Returns false if guest (shows prompt).
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static bool requireLogin(BuildContext context,
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{String reason = 'This feature requires an account.'}) {
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if (!_isGuest) return true;
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_showLoginPrompt(context, reason);
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return false;
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}
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static void _showLoginPrompt(BuildContext context, String reason) {
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showModalBottomSheet(
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context: context,
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shape: const RoundedRectangleBorder(
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borderRadius: BorderRadius.vertical(top: Radius.circular(20)),
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),
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builder: (ctx) => Padding(
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padding: const EdgeInsets.all(24),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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const Icon(Icons.lock_outline, size: 48, color: Color(0xFF0B63D6)),
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const SizedBox(height: 16),
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Text(reason,
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textAlign: TextAlign.center,
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style: const TextStyle(
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fontSize: 16, fontWeight: FontWeight.w600)),
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const SizedBox(height: 8),
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const Text('Sign in or create an account to continue.',
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textAlign: TextAlign.center,
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style: TextStyle(color: Colors.grey, fontSize: 14)),
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const SizedBox(height: 24),
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SizedBox(
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width: double.infinity,
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height: 48,
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child: ElevatedButton(
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style: ElevatedButton.styleFrom(
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backgroundColor: const Color(0xFF0B63D6),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(12)),
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),
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onPressed: () {
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Navigator.of(ctx).pop();
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Navigator.of(context).pushAndRemoveUntil(
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MaterialPageRoute(builder: (_) => const LoginScreen()),
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(route) => false,
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);
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},
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child: const Text('Sign In',
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style: TextStyle(
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color: Colors.white, fontWeight: FontWeight.w700)),
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),
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),
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const SizedBox(height: 12),
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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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