Neda/Front/lib/screens/channel_list_screen.dart
2026-03-05 23:08:50 +03:30

391 lines
14 KiB
Dart

import 'package:flutter/material.dart';
import '../models/channel.dart';
import '../services/api_service.dart';
import '../services/auth_service.dart';
import 'channel_screen.dart';
import 'login_screen.dart';
class ChannelListScreen extends StatefulWidget {
const ChannelListScreen({super.key});
@override
State<ChannelListScreen> createState() => _ChannelListScreenState();
}
class _ChannelListScreenState extends State<ChannelListScreen> {
final _authService = AuthService();
late final ApiService _api;
List<Channel> _channels = [];
bool _loading = true;
String? _error;
@override
void initState() {
super.initState();
_api = ApiService(_authService);
_loadChannels();
}
Future<void> _loadChannels() async {
setState(() {
_loading = true;
_error = null;
});
final channels = await _api.getChannels();
if (!mounted) return;
if (channels.isEmpty && _channels.isEmpty) {
setState(() {
_loading = false;
_error = 'کانالی یافت نشد';
});
} else {
setState(() {
_channels = channels;
_loading = false;
});
}
}
Future<void> _logout() async {
await _authService.logout();
if (!mounted) return;
Navigator.pushReplacement(
context,
MaterialPageRoute(builder: (_) => const LoginScreen()),
);
}
void _enterChannel(Channel ch) {
Navigator.push(
context,
MaterialPageRoute(builder: (_) => ChannelScreen(channel: ch)),
);
}
Future<void> _showPrivateJoin() async {
final keyCtrl = TextEditingController();
bool joining = false;
String? joinError;
await showDialog<void>(
context: context,
builder: (ctx) {
return StatefulBuilder(builder: (ctx, setDialog) {
return Dialog(
backgroundColor: const Color(0xFF1C1C1E),
shape:
RoundedRectangleBorder(borderRadius: BorderRadius.circular(20)),
child: Padding(
padding: const EdgeInsets.all(16),
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
const Icon(Icons.lock_outline,
color: Color(0xFFFFAB00), size: 22),
const SizedBox(height: 6),
const Text(
'کانال خصوصی',
style: TextStyle(
color: Colors.white,
fontSize: 12,
fontWeight: FontWeight.bold),
),
const SizedBox(height: 10),
SizedBox(
height: 34,
child: TextField(
controller: keyCtrl,
style:
const TextStyle(color: Colors.white, fontSize: 12),
textAlign: TextAlign.center,
decoration: InputDecoration(
hintText: 'کلید ورود',
hintStyle: const TextStyle(
color: Colors.white38, fontSize: 11),
filled: true,
fillColor: const Color(0xFF2C2C2E),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(14),
borderSide: BorderSide.none,
),
contentPadding: const EdgeInsets.symmetric(
horizontal: 10, vertical: 0),
),
),
),
if (joinError != null) ...[
const SizedBox(height: 4),
Text(joinError!,
style: const TextStyle(
color: Color(0xFFFF1744), fontSize: 10)),
],
const SizedBox(height: 10),
Row(
children: [
Expanded(
child: TextButton(
onPressed: () => Navigator.pop(ctx),
style: TextButton.styleFrom(
padding: const EdgeInsets.symmetric(vertical: 8),
),
child: const Text('انصراف',
style: TextStyle(
color: Colors.white54, fontSize: 11)),
),
),
const SizedBox(width: 8),
Expanded(
child: ElevatedButton(
onPressed: joining
? null
: () async {
final key = keyCtrl.text.trim();
if (key.isEmpty) {
setDialog(
() => joinError = 'کلید را وارد کنید');
return;
}
setDialog(() {
joining = true;
joinError = null;
});
final ch =
await _api.joinPrivateChannel(key);
if (!ctx.mounted) return;
if (ch != null) {
Navigator.pop(ctx);
_enterChannel(ch);
} else {
setDialog(() {
joining = false;
joinError = 'کلید نادرست';
});
}
},
style: ElevatedButton.styleFrom(
backgroundColor: const Color(0xFFFFAB00),
foregroundColor: Colors.black,
padding: const EdgeInsets.symmetric(vertical: 8),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(14)),
),
child: joining
? const SizedBox(
width: 14,
height: 14,
child: CircularProgressIndicator(
color: Colors.black, strokeWidth: 2),
)
: const Text('ورود',
style: TextStyle(
fontSize: 11,
fontWeight: FontWeight.bold)),
),
),
],
),
],
),
),
);
});
},
);
keyCtrl.dispose();
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.black,
body: SafeArea(
child: Column(
children: [
// Header
Padding(
padding:
const EdgeInsets.symmetric(horizontal: 8, vertical: 6),
child: Row(
children: [
const SizedBox(width: 4),
const Icon(Icons.settings_input_antenna,
color: Color(0xFF00C853), size: 16),
const SizedBox(width: 4),
const Expanded(
child: Text(
'کانال‌ها',
style: TextStyle(
color: Colors.white,
fontSize: 13,
fontWeight: FontWeight.bold),
),
),
// Refresh
IconButton(
onPressed: _loading ? null : _loadChannels,
padding: EdgeInsets.zero,
constraints:
const BoxConstraints(minWidth: 32, minHeight: 32),
icon: const Icon(Icons.refresh,
color: Colors.white54, size: 18),
),
// Logout
IconButton(
onPressed: _logout,
padding: EdgeInsets.zero,
constraints:
const BoxConstraints(minWidth: 32, minHeight: 32),
icon: const Icon(Icons.logout,
color: Colors.white38, size: 16),
),
],
),
),
// Content
Expanded(
child: _loading
? const Center(
child: CircularProgressIndicator(
color: Color(0xFF00C853), strokeWidth: 2),
)
: _error != null && _channels.isEmpty
? Center(
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
const Icon(Icons.wifi_off,
color: Colors.white38, size: 24),
const SizedBox(height: 6),
Text(_error!,
style: const TextStyle(
color: Colors.white38, fontSize: 11)),
const SizedBox(height: 8),
TextButton(
onPressed: _loadChannels,
child: const Text('تلاش مجدد',
style: TextStyle(
color: Color(0xFF00C853),
fontSize: 11)),
),
],
),
)
: ListView.builder(
padding: const EdgeInsets.only(bottom: 4),
itemCount: _channels.length + 1,
itemBuilder: (ctx, i) {
if (i == _channels.length) {
// Private join button
return _PrivateJoinTile(
onTap: _showPrivateJoin);
}
return _ChannelTile(
channel: _channels[i],
onTap: () => _enterChannel(_channels[i]),
);
},
),
),
],
),
),
);
}
}
class _ChannelTile extends StatelessWidget {
final Channel channel;
final VoidCallback onTap;
const _ChannelTile({required this.channel, required this.onTap});
@override
Widget build(BuildContext context) {
return GestureDetector(
onTap: onTap,
child: Container(
margin: const EdgeInsets.symmetric(horizontal: 8, vertical: 3),
height: 44,
decoration: BoxDecoration(
color: const Color(0xFF1C1C1E),
borderRadius: BorderRadius.circular(14),
),
padding: const EdgeInsets.symmetric(horizontal: 12),
child: Row(
children: [
const Icon(Icons.radio, color: Color(0xFF00C853), size: 16),
const SizedBox(width: 8),
Expanded(
child: Text(
channel.name,
style: const TextStyle(
color: Colors.white,
fontSize: 12,
fontWeight: FontWeight.w500),
overflow: TextOverflow.ellipsis,
),
),
if (channel.memberCount > 0) ...[
Text(
'${channel.memberCount}',
style: const TextStyle(color: Colors.white38, fontSize: 10),
),
const SizedBox(width: 2),
const Icon(Icons.person_outline,
color: Colors.white38, size: 11),
],
const SizedBox(width: 4),
const Icon(Icons.chevron_right, color: Colors.white24, size: 16),
],
),
),
);
}
}
class _PrivateJoinTile extends StatelessWidget {
final VoidCallback onTap;
const _PrivateJoinTile({required this.onTap});
@override
Widget build(BuildContext context) {
return GestureDetector(
onTap: onTap,
child: Container(
margin: const EdgeInsets.symmetric(horizontal: 8, vertical: 3),
height: 44,
decoration: BoxDecoration(
color: const Color(0xFF2C2400),
borderRadius: BorderRadius.circular(14),
border: Border.all(
color: const Color(0xFFFFAB00).withValues(alpha: 0.4),
width: 1,
),
),
padding: const EdgeInsets.symmetric(horizontal: 12),
child: const Row(
children: [
Icon(Icons.lock_open_outlined,
color: Color(0xFFFFAB00), size: 16),
SizedBox(width: 8),
Expanded(
child: Text(
'ورود به کانال خصوصی',
style: TextStyle(
color: Color(0xFFFFAB00),
fontSize: 11,
fontWeight: FontWeight.w500),
),
),
Icon(Icons.chevron_right, color: Color(0xFFFFAB00), size: 16),
],
),
),
);
}
}