meshcore-open/lib/screens/chat_screen.dart
2025-12-30 21:42:14 -07:00

1508 lines
52 KiB
Dart

import 'dart:async';
import 'dart:convert';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:provider/provider.dart';
import 'package:latlong2/latlong.dart';
import '../connector/meshcore_connector.dart';
import '../connector/meshcore_protocol.dart';
import '../helpers/utf8_length_limiter.dart';
import '../models/channel_message.dart';
import '../models/contact.dart';
import '../models/message.dart';
import '../services/path_history_service.dart';
import 'channel_message_path_screen.dart';
import 'map_screen.dart';
import '../utils/emoji_utils.dart';
import '../widgets/emoji_picker.dart';
import '../widgets/gif_message.dart';
import '../widgets/gif_picker.dart';
class ChatScreen extends StatefulWidget {
final Contact contact;
const ChatScreen({super.key, required this.contact});
@override
State<ChatScreen> createState() => _ChatScreenState();
}
class _ChatScreenState extends State<ChatScreen> {
final _textController = TextEditingController();
final _scrollController = ScrollController();
bool _clearPath = false;
@override
void initState() {
super.initState();
WidgetsBinding.instance.addPostFrameCallback((_) {
if (!mounted) return;
context.read<MeshCoreConnector>().setActiveContact(widget.contact.publicKeyHex);
});
}
@override
void dispose() {
context.read<MeshCoreConnector>().setActiveContact(null);
_textController.dispose();
_scrollController.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Consumer2<PathHistoryService, MeshCoreConnector>(
builder: (context, pathService, connector, _) {
final contact = _resolveContact(connector);
final unreadCount = connector.getUnreadCountForContactKey(widget.contact.publicKeyHex);
final unreadLabel = 'Unread: $unreadCount';
final pathLabel = _clearPath ? 'Flood (forced)' : _currentPathLabel(contact);
final canShowPathDetails = !_clearPath && contact.path.isNotEmpty;
return Column(
crossAxisAlignment: CrossAxisAlignment.start,
mainAxisSize: MainAxisSize.min,
children: [
Text(contact.name),
if (canShowPathDetails)
GestureDetector(
behavior: HitTestBehavior.opaque,
onLongPress: () => _showFullPathDialog(context, contact.path),
child: Text(
'$pathLabel$unreadLabel',
overflow: TextOverflow.ellipsis,
style: const TextStyle(fontSize: 11, fontWeight: FontWeight.normal),
),
)
else
Text(
'$pathLabel$unreadLabel',
overflow: TextOverflow.ellipsis,
style: const TextStyle(fontSize: 11, fontWeight: FontWeight.normal),
),
],
);
},
),
centerTitle: false,
actions: [
PopupMenuButton<String>(
icon: Icon(_clearPath ? Icons.waves : Icons.route),
tooltip: 'Routing mode',
onSelected: (mode) {
setState(() {
_clearPath = (mode == 'flood');
});
},
itemBuilder: (context) => [
PopupMenuItem(
value: 'auto',
child: Row(
children: [
Icon(Icons.auto_mode, size: 20, color: !_clearPath ? Theme.of(context).primaryColor : null),
const SizedBox(width: 8),
Text(
'Auto (use saved path)',
style: TextStyle(
fontWeight: !_clearPath ? FontWeight.bold : FontWeight.normal,
),
),
],
),
),
PopupMenuItem(
value: 'flood',
child: Row(
children: [
Icon(Icons.waves, size: 20, color: _clearPath ? Theme.of(context).primaryColor : null),
const SizedBox(width: 8),
Text(
'Force Flood Mode',
style: TextStyle(
fontWeight: _clearPath ? FontWeight.bold : FontWeight.normal,
),
),
],
),
),
],
),
IconButton(
icon: const Icon(Icons.timeline),
tooltip: 'Path management',
onPressed: () => _showPathHistory(context),
),
IconButton(
icon: const Icon(Icons.info_outline),
onPressed: () => _showContactInfo(context),
),
],
),
body: Consumer<MeshCoreConnector>(
builder: (context, connector, child) {
final messages = connector.getMessages(widget.contact);
return Column(
children: [
Expanded(
child: messages.isEmpty
? _buildEmptyState()
: _buildMessageList(messages),
),
_buildInputBar(connector),
],
);
},
),
);
}
Widget _buildEmptyState() {
return Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(Icons.chat_bubble_outline, size: 64, color: Colors.grey[400]),
const SizedBox(height: 16),
Text(
'No messages yet',
style: TextStyle(fontSize: 16, color: Colors.grey[600]),
),
const SizedBox(height: 8),
Text(
'Send a message to ${widget.contact.name}',
style: TextStyle(fontSize: 14, color: Colors.grey[500]),
),
],
),
);
}
Widget _buildMessageList(List<Message> messages) {
return ListView.builder(
controller: _scrollController,
padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 16),
itemCount: messages.length,
itemBuilder: (context, index) {
final message = messages[index];
return _MessageBubble(
message: message,
senderName: widget.contact.name,
onTap: () => _openMessagePath(message),
onLongPress: () => _showMessageActions(message),
);
},
);
}
Widget _buildInputBar(MeshCoreConnector connector) {
final maxBytes = maxContactMessageBytes();
final colorScheme = Theme.of(context).colorScheme;
return Container(
padding: const EdgeInsets.all(8),
decoration: BoxDecoration(
color: colorScheme.surface,
border: Border(
top: BorderSide(color: Theme.of(context).dividerColor),
),
),
child: SafeArea(
child: Row(
children: [
IconButton(
icon: const Icon(Icons.gif_box),
onPressed: () => _showGifPicker(context),
tooltip: 'Send GIF',
),
Expanded(
child: ValueListenableBuilder<TextEditingValue>(
valueListenable: _textController,
builder: (context, value, child) {
final gifId = _parseGifId(value.text);
if (gifId != null) {
return Row(
children: [
Expanded(
child: GifMessage(
url: 'https://media.giphy.com/media/$gifId/giphy.gif',
backgroundColor: colorScheme.surfaceContainerHighest,
fallbackTextColor:
colorScheme.onSurface.withValues(alpha: 0.6),
width: 160,
height: 110,
),
),
const SizedBox(width: 8),
IconButton(
icon: const Icon(Icons.close),
onPressed: () => _textController.clear(),
),
],
);
}
return TextField(
controller: _textController,
inputFormatters: [
Utf8LengthLimitingTextInputFormatter(maxBytes),
],
decoration: const InputDecoration(
hintText: 'Type a message...',
border: OutlineInputBorder(),
contentPadding: EdgeInsets.symmetric(horizontal: 16, vertical: 12),
),
textInputAction: TextInputAction.send,
onSubmitted: (_) => _sendMessage(connector),
);
},
),
),
const SizedBox(width: 8),
IconButton.filled(
icon: const Icon(Icons.send),
onPressed: () => _sendMessage(connector),
),
],
),
),
);
}
String? _parseGifId(String text) {
final trimmed = text.trim();
final match = RegExp(r'^g:([A-Za-z0-9_-]+)$').firstMatch(trimmed);
return match?.group(1);
}
void _showGifPicker(BuildContext context) {
showModalBottomSheet(
context: context,
isScrollControlled: true,
builder: (context) => GifPicker(
onGifSelected: (gifId) {
_textController.text = 'g:$gifId';
},
),
);
}
void _sendMessage(MeshCoreConnector connector) {
final text = _textController.text.trim();
if (text.isEmpty) return;
final maxBytes = maxContactMessageBytes();
if (utf8.encode(text).length > maxBytes) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text('Message too long (max $maxBytes bytes).')),
);
return;
}
connector.sendMessage(
widget.contact,
text,
clearPath: _clearPath,
);
_textController.clear();
Future.delayed(const Duration(milliseconds: 100), () {
if (_scrollController.hasClients) {
_scrollController.animateTo(
_scrollController.position.maxScrollExtent,
duration: const Duration(milliseconds: 200),
curve: Curves.easeOut,
);
}
});
}
void _showPathHistory(BuildContext context) {
final connector = Provider.of<MeshCoreConnector>(context, listen: false);
showDialog(
context: context,
builder: (context) => Consumer<PathHistoryService>(
builder: (context, pathService, _) {
final paths = pathService.getRecentPaths(widget.contact.publicKeyHex);
return AlertDialog(
title: const Row(
children: [
Icon(Icons.timeline),
SizedBox(width: 8),
Text('Path Management'),
],
),
content: SingleChildScrollView(
child: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
if (paths.isNotEmpty) ...[
const Text(
'Recent ACK Paths (tap to use):',
style: TextStyle(fontWeight: FontWeight.bold, fontSize: 12),
),
if (paths.length >= 100) ...[
const SizedBox(height: 8),
Container(
width: double.infinity,
padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 8),
decoration: BoxDecoration(
color: Colors.amber[100],
borderRadius: BorderRadius.circular(8),
),
child: const Text(
'Path history is full. Remove entries to add new ones.',
style: TextStyle(fontSize: 12),
),
),
],
const SizedBox(height: 8),
...paths.map((path) {
return Card(
margin: const EdgeInsets.symmetric(vertical: 4),
child: ListTile(
dense: true,
leading: CircleAvatar(
radius: 16,
backgroundColor: path.wasFloodDiscovery ? Colors.blue : Colors.green,
child: Text(
'${path.hopCount}',
style: const TextStyle(fontSize: 12),
),
),
title: Text(
'${path.hopCount} ${path.hopCount == 1 ? 'hop' : 'hops'}',
style: const TextStyle(fontSize: 14),
),
subtitle: Text(
'${(path.tripTimeMs / 1000).toStringAsFixed(2)}s • ${_formatRelativeTime(path.timestamp)}${path.successCount} successes',
style: const TextStyle(fontSize: 11),
),
trailing: Row(
mainAxisSize: MainAxisSize.min,
children: [
IconButton(
icon: const Icon(Icons.close, size: 16),
tooltip: 'Remove path',
onPressed: () async {
await pathService.removePathRecord(
widget.contact.publicKeyHex,
path.pathBytes,
);
},
),
path.wasFloodDiscovery
? const Icon(Icons.waves, size: 16, color: Colors.grey)
: const Icon(Icons.route, size: 16, color: Colors.grey),
],
),
onLongPress: () => _showFullPathDialog(context, path.pathBytes),
onTap: () async {
if (path.pathBytes.isEmpty) {
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(
content: Text('Path details not available yet. Try sending a message to refresh.'),
duration: Duration(seconds: 2),
),
);
return;
}
final pathBytes = Uint8List.fromList(path.pathBytes);
final pathLength = path.pathBytes.length;
await connector.setContactPath(
widget.contact,
pathBytes,
pathLength,
);
// Update contact in memory directly for immediate UI feedback
connector.updateContactInMemory(
widget.contact.publicKeyHex,
pathBytes: pathBytes,
pathLength: pathLength,
);
if (!context.mounted) return;
setState(() {
_clearPath = false;
});
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text('Using ${path.hopCount} ${path.hopCount == 1 ? 'hop' : 'hops'} path'),
duration: const Duration(seconds: 2),
),
);
Navigator.pop(context);
},
),
);
}),
const Divider(),
] else ...[
const Text('No path history yet.\nSend a message to discover paths.'),
const Divider(),
],
const SizedBox(height: 8),
const Text(
'Path Actions:',
style: TextStyle(fontWeight: FontWeight.bold, fontSize: 12),
),
const SizedBox(height: 8),
ListTile(
dense: true,
leading: const CircleAvatar(
radius: 16,
backgroundColor: Colors.purple,
child: Icon(Icons.edit_road, size: 16),
),
title: const Text('Set Custom Path', style: TextStyle(fontSize: 14)),
subtitle: const Text('Manually specify routing path', style: TextStyle(fontSize: 11)),
onTap: () {
Navigator.pop(context);
_showCustomPathDialog(context);
},
),
ListTile(
dense: true,
leading: const CircleAvatar(
radius: 16,
backgroundColor: Colors.orange,
child: Icon(Icons.clear_all, size: 16),
),
title: const Text('Clear Path', style: TextStyle(fontSize: 14)),
subtitle: const Text('Force rediscovery on next send', style: TextStyle(fontSize: 11)),
onTap: () async {
await connector.clearContactPath(widget.contact);
if (!context.mounted) return;
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(
content: Text('Path cleared. Next message will rediscover route.'),
duration: Duration(seconds: 2),
),
);
Navigator.pop(context);
},
),
ListTile(
dense: true,
leading: const CircleAvatar(
radius: 16,
backgroundColor: Colors.blue,
child: Icon(Icons.waves, size: 16),
),
title: const Text('Force Flood Mode', style: TextStyle(fontSize: 14)),
subtitle: const Text('Use routing toggle in app bar', style: TextStyle(fontSize: 11)),
onTap: () {
setState(() {
_clearPath = true;
});
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(
content: Text('Flood mode enabled. Toggle back via routing icon in app bar.'),
duration: Duration(seconds: 2),
),
);
Navigator.pop(context);
},
),
],
),
),
actions: [
TextButton(
onPressed: () => Navigator.pop(context),
child: const Text('Close'),
),
],
);
},
),
);
}
String _formatRelativeTime(DateTime time) {
final diff = DateTime.now().difference(time);
if (diff.inSeconds < 60) return 'Just now';
if (diff.inMinutes < 60) return '${diff.inMinutes}m ago';
if (diff.inHours < 24) return '${diff.inHours}h ago';
return '${diff.inDays}d ago';
}
void _showFullPathDialog(BuildContext context, List<int> pathBytes) {
if (pathBytes.isEmpty) {
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(
content: Text('Path details not available yet. Try sending a message to refresh.'),
duration: Duration(seconds: 2),
),
);
return;
}
final formattedPath = pathBytes
.map((b) => b.toRadixString(16).padLeft(2, '0').toUpperCase())
.join(',');
showDialog(
context: context,
builder: (context) => AlertDialog(
title: const Text('Full Path'),
content: SelectableText(formattedPath),
actions: [
TextButton(
onPressed: () => Navigator.pop(context),
child: const Text('Close'),
),
],
),
);
}
Contact _resolveContact(MeshCoreConnector connector) {
return connector.contacts.firstWhere(
(c) => c.publicKeyHex == widget.contact.publicKeyHex,
orElse: () => widget.contact,
);
}
String _currentPathLabel(Contact contact) {
if (contact.pathLength < 0) return 'Flood (auto)';
if (contact.pathLength == 0) return 'Direct';
if (contact.pathIdList.isNotEmpty) return contact.pathIdList;
return '${contact.pathLength} hops';
}
void _showContactInfo(BuildContext context) {
final connector = Provider.of<MeshCoreConnector>(context, listen: false);
connector.ensureContactSmazSettingLoaded(widget.contact.publicKeyHex);
showDialog(
context: context,
builder: (context) => Consumer<MeshCoreConnector>(
builder: (context, connector, _) {
final contact = _resolveContact(connector);
final smazEnabled = connector.isContactSmazEnabled(contact.publicKeyHex);
return AlertDialog(
title: Text(contact.name),
content: SingleChildScrollView(
child: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
_buildInfoRow('Type', contact.typeLabel),
_buildInfoRow('Path', contact.pathLabel),
if (contact.hasLocation)
_buildInfoRow(
'Location',
'${contact.latitude?.toStringAsFixed(4)}, ${contact.longitude?.toStringAsFixed(4)}',
),
_buildInfoRow('Public Key', contact.publicKeyHex.substring(0, 16) + '...'),
const Divider(),
SwitchListTile(
contentPadding: EdgeInsets.zero,
title: const Text('SMAZ compression'),
subtitle: const Text('Compress outgoing messages'),
value: smazEnabled,
onChanged: (value) {
connector.setContactSmazEnabled(contact.publicKeyHex, value);
},
),
],
),
),
actions: [
TextButton(
onPressed: () => Navigator.pop(context),
child: const Text('Close'),
),
],
);
},
),
);
}
Widget _buildInfoRow(String label, String value) {
return Padding(
padding: const EdgeInsets.symmetric(vertical: 4),
child: Row(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
SizedBox(
width: 80,
child: Text(label, style: TextStyle(color: Colors.grey[600])),
),
Expanded(child: Text(value)),
],
),
);
}
void _showCustomPathDialog(BuildContext context) {
final connector = Provider.of<MeshCoreConnector>(context, listen: false);
final currentContact = _resolveContact(connector);
if (currentContact.pathLength > 0 && currentContact.path.isEmpty && connector.isConnected) {
connector.getContacts();
}
showDialog(
context: context,
builder: (context) => AlertDialog(
title: const Row(
children: [
Icon(Icons.edit_road),
SizedBox(width: 8),
Text('Set Custom Path'),
],
),
content: Consumer<MeshCoreConnector>(
builder: (context, connector, _) {
final contact = _resolveContact(connector);
final pathForInput = contact.pathIdList;
final currentPathLabel = _currentPathLabel(contact);
return Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
children: [
const Text(
'Current path',
style: TextStyle(fontSize: 12, fontWeight: FontWeight.bold),
),
const Spacer(),
TextButton.icon(
onPressed: connector.isConnected ? connector.getContacts : null,
icon: const Icon(Icons.refresh, size: 16),
label: const Text('Reload'),
),
],
),
Text(
currentPathLabel,
style: const TextStyle(fontSize: 11, color: Colors.grey),
),
const SizedBox(height: 16),
const Text(
'Choose how to set the message path:',
style: TextStyle(fontSize: 14),
),
const SizedBox(height: 16),
ListTile(
dense: true,
leading: const CircleAvatar(
radius: 16,
backgroundColor: Colors.blue,
child: Icon(Icons.text_fields, size: 16),
),
title: const Text('Enter Path Manually', style: TextStyle(fontSize: 14)),
subtitle: const Text('Type IDs like: A1B2C3D4,FFEEDDCC', style: TextStyle(fontSize: 11)),
onTap: () {
Navigator.pop(context);
_showManualPathInput(
context,
initialPath: pathForInput.isEmpty ? null : pathForInput,
);
},
),
const SizedBox(height: 8),
ListTile(
dense: true,
leading: const CircleAvatar(
radius: 16,
backgroundColor: Colors.green,
child: Icon(Icons.contacts, size: 16),
),
title: const Text('Select from Contacts', style: TextStyle(fontSize: 14)),
subtitle: const Text('Pick repeaters/rooms as hops', style: TextStyle(fontSize: 11)),
onTap: () {
Navigator.pop(context);
_showContactPathPicker(context);
},
),
],
);
},
),
actions: [
TextButton(
onPressed: () => Navigator.pop(context),
child: const Text('Cancel'),
),
],
),
);
}
void _showManualPathInput(BuildContext context, {String? initialPath}) {
final connector = Provider.of<MeshCoreConnector>(context, listen: false);
final controller = TextEditingController(text: initialPath ?? '');
showDialog(
context: context,
builder: (context) => AlertDialog(
title: const Text('Enter Custom Path'),
content: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'Enter 2-character hex prefixes for each hop, separated by commas.',
style: TextStyle(fontSize: 12, color: Colors.grey),
),
const SizedBox(height: 8),
const Text(
'Example: A1,F2,3C (each node uses first byte of its public key)',
style: TextStyle(fontSize: 11, color: Colors.grey),
),
const SizedBox(height: 16),
TextField(
controller: controller,
decoration: const InputDecoration(
labelText: 'Path (hex prefixes)',
hintText: 'A1,F2,3C',
border: OutlineInputBorder(),
helperText: 'Max 64 hops. Each prefix is 2 hex characters (1 byte)',
),
textCapitalization: TextCapitalization.characters,
maxLength: 191, // 64 hops * 2 chars + 63 commas
),
],
),
actions: [
TextButton(
onPressed: () => Navigator.pop(context),
child: const Text('Cancel'),
),
TextButton(
onPressed: () async {
final path = controller.text.trim().toUpperCase();
if (path.isEmpty) {
if (context.mounted) Navigator.pop(context);
return;
}
// Parse comma-separated hex prefixes
final pathIds = path.split(',').map((s) => s.trim()).where((s) => s.isNotEmpty).toList();
final pathBytesList = <int>[];
final invalidPrefixes = <String>[];
for (final id in pathIds) {
if (id.length < 2) {
invalidPrefixes.add(id);
continue;
}
final prefix = id.substring(0, 2);
try {
final byte = int.parse(prefix, radix: 16);
pathBytesList.add(byte);
} catch (e) {
invalidPrefixes.add(id);
}
}
if (!context.mounted) return;
// Show error for invalid prefixes
if (invalidPrefixes.isNotEmpty) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text('Invalid hex prefixes: ${invalidPrefixes.join(", ")}'),
duration: const Duration(seconds: 3),
backgroundColor: Colors.red,
),
);
return;
}
// Check max path length (64 hops)
if (pathBytesList.length > 64) {
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(
content: Text('Path too long. Maximum 64 hops allowed.'),
duration: Duration(seconds: 3),
backgroundColor: Colors.red,
),
);
return;
}
if (pathBytesList.isNotEmpty) {
await connector.setContactPath(
widget.contact,
Uint8List.fromList(pathBytesList),
pathBytesList.length,
);
if (context.mounted) {
Navigator.pop(context);
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text('Path set: ${pathBytesList.length} ${pathBytesList.length == 1 ? "hop" : "hops"}'),
duration: const Duration(seconds: 2),
),
);
}
}
},
child: const Text('Set Path'),
),
],
),
);
}
void _showContactPathPicker(BuildContext context) {
final connector = Provider.of<MeshCoreConnector>(context, listen: false);
final selectedContacts = <Contact>[];
// Filter to only repeaters and room servers
final validContacts = connector.contacts
.where((c) => (c.type == 2 || c.type == 3) && c != widget.contact)
.toList();
showDialog(
context: context,
builder: (context) => StatefulBuilder(
builder: (context, setDialogState) => AlertDialog(
title: const Text('Build Path from Contacts'),
content: SizedBox(
width: double.maxFinite,
child: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
if (validContacts.isEmpty) ...[
const Icon(Icons.info_outline, size: 48, color: Colors.grey),
const SizedBox(height: 16),
const Text(
'No repeaters or room servers found.',
style: TextStyle(fontSize: 14),
textAlign: TextAlign.center,
),
const SizedBox(height: 8),
const Text(
'Custom paths require intermediate hops that can relay messages.',
style: TextStyle(fontSize: 12, color: Colors.grey),
textAlign: TextAlign.center,
),
] else if (selectedContacts.isNotEmpty) ...[
const Text(
'Selected Path:',
style: TextStyle(fontWeight: FontWeight.bold, fontSize: 12),
),
const SizedBox(height: 8),
Wrap(
spacing: 8,
runSpacing: 8,
children: selectedContacts.asMap().entries.map((entry) {
final idx = entry.key;
final contact = entry.value;
return Chip(
avatar: CircleAvatar(
child: Text('${idx + 1}'),
),
label: Text(contact.name),
onDeleted: () {
setDialogState(() {
selectedContacts.removeAt(idx);
});
},
);
}).toList(),
),
const Divider(),
] else
const Text(
'Tap repeaters/rooms to add them to the path:',
style: TextStyle(fontSize: 12, color: Colors.grey),
),
const SizedBox(height: 8),
if (validContacts.isNotEmpty)
Flexible(
child: ListView.builder(
shrinkWrap: true,
itemCount: validContacts.length,
itemBuilder: (context, index) {
final contact = validContacts[index];
final isSelected = selectedContacts.contains(contact);
return ListTile(
dense: true,
leading: CircleAvatar(
radius: 16,
backgroundColor: isSelected ? Colors.green : (contact.type == 2 ? Colors.blue : Colors.purple),
child: Icon(
contact.type == 2 ? Icons.router : Icons.meeting_room,
size: 16,
color: Colors.white,
),
),
title: Text(contact.name, style: const TextStyle(fontSize: 14)),
subtitle: Text(
'${contact.typeLabel}${contact.publicKeyHex.substring(0, 8)}',
style: const TextStyle(fontSize: 10),
),
trailing: isSelected
? const Icon(Icons.check_circle, color: Colors.green)
: const Icon(Icons.add_circle_outline),
onTap: () {
setDialogState(() {
if (isSelected) {
selectedContacts.remove(contact);
} else {
selectedContacts.add(contact);
}
});
},
);
},
),
),
],
),
),
actions: [
if (selectedContacts.isNotEmpty)
TextButton(
onPressed: () {
setDialogState(() {
selectedContacts.clear();
});
},
child: const Text('Clear'),
),
TextButton(
onPressed: () => Navigator.pop(context),
child: const Text('Cancel'),
),
TextButton(
onPressed: selectedContacts.isEmpty
? null
: () async {
// Build path bytes from selected contacts (prefix byte of each pub key)
final pathBytesList = <int>[];
for (final contact in selectedContacts) {
if (contact.publicKeyHex.length >= 2) {
try {
pathBytesList.add(int.parse(contact.publicKeyHex.substring(0, 2), radix: 16));
} catch (e) {
// Skip invalid hex
}
}
}
if (pathBytesList.isNotEmpty) {
await connector.setContactPath(
widget.contact,
Uint8List.fromList(pathBytesList),
pathBytesList.length,
);
final pathIds = selectedContacts
.map((c) => c.publicKeyHex.substring(0, 8))
.join(',');
if (context.mounted) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text('Custom path set: $pathIds'),
duration: const Duration(seconds: 2),
),
);
Navigator.pop(context);
}
}
},
child: const Text('Set Path'),
),
],
),
),
);
}
void _openMessagePath(Message message) {
final connector = context.read<MeshCoreConnector>();
final senderName =
message.isOutgoing ? (connector.selfName ?? 'Me') : widget.contact.name;
final pathMessage = ChannelMessage(
senderKey: null,
senderName: senderName,
text: message.text,
timestamp: message.timestamp,
isOutgoing: message.isOutgoing,
status: ChannelMessageStatus.sent,
repeatCount: 0,
pathLength: message.pathLength,
pathBytes: message.pathBytes,
);
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => ChannelMessagePathScreen(message: pathMessage),
),
);
}
void _showMessageActions(Message message) {
showModalBottomSheet(
context: context,
builder: (sheetContext) => SafeArea(
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
ListTile(
leading: const Icon(Icons.add_reaction_outlined),
title: const Text('Add Reaction'),
onTap: () {
Navigator.pop(sheetContext);
_showEmojiPicker(message);
},
),
ListTile(
leading: const Icon(Icons.copy),
title: const Text('Copy'),
onTap: () {
Navigator.pop(sheetContext);
_copyMessageText(message.text);
},
),
ListTile(
leading: const Icon(Icons.delete_outline),
title: const Text('Delete'),
onTap: () async {
Navigator.pop(sheetContext);
await _deleteMessage(message);
},
),
if (message.isOutgoing &&
message.status == MessageStatus.failed)
ListTile(
leading: const Icon(Icons.refresh),
title: const Text('Retry'),
onTap: () {
Navigator.pop(sheetContext);
_retryMessage(message);
},
),
ListTile(
leading: const Icon(Icons.close),
title: const Text('Cancel'),
onTap: () => Navigator.pop(sheetContext),
),
],
),
),
);
}
void _copyMessageText(String text) {
Clipboard.setData(ClipboardData(text: text));
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(content: Text('Message copied')),
);
}
Future<void> _deleteMessage(Message message) async {
await context.read<MeshCoreConnector>().deleteMessage(message);
if (!mounted) return;
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(content: Text('Message deleted')),
);
}
void _retryMessage(Message message) {
final connector = Provider.of<MeshCoreConnector>(context, listen: false);
// Retry with clearPath if the message has no path or pathLength is -1 (indicating flood was used)
final shouldClearPath = message.pathLength != null && message.pathLength! < 0;
connector.sendMessage(
widget.contact,
message.text,
clearPath: shouldClearPath,
);
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(content: Text('Retrying message')),
);
}
void _showEmojiPicker(Message message) {
showModalBottomSheet(
context: context,
isScrollControlled: true,
builder: (context) => EmojiPicker(
onEmojiSelected: (emoji) {
_sendReaction(message, emoji);
},
),
);
}
void _sendReaction(Message message, String emoji) {
final connector = context.read<MeshCoreConnector>();
final reactionText = 'r:${message.messageId}:$emoji';
connector.sendMessage(widget.contact, reactionText);
}
}
class _MessageBubble extends StatelessWidget {
final Message message;
final String senderName;
final VoidCallback? onTap;
final VoidCallback? onLongPress;
const _MessageBubble({
required this.message,
required this.senderName,
this.onTap,
this.onLongPress,
});
@override
Widget build(BuildContext context) {
final isOutgoing = message.isOutgoing;
final colorScheme = Theme.of(context).colorScheme;
final gifId = _parseGifId(message.text);
final poi = _parsePoiMessage(message.text);
final isFailed = message.status == MessageStatus.failed;
final attempts = message.retryCount + 1;
final bubbleColor = isFailed
? colorScheme.errorContainer
: (isOutgoing ? colorScheme.primary : colorScheme.surfaceContainerHighest);
final textColor = isFailed
? colorScheme.onErrorContainer
: (isOutgoing ? colorScheme.onPrimary : colorScheme.onSurface);
final metaColor = textColor.withValues(alpha: 0.7);
return Padding(
padding: const EdgeInsets.symmetric(vertical: 4),
child: Column(
crossAxisAlignment: isOutgoing ? CrossAxisAlignment.end : CrossAxisAlignment.start,
children: [
GestureDetector(
onTap: onTap,
onLongPress: onLongPress,
child: Row(
mainAxisAlignment: isOutgoing ? MainAxisAlignment.end : MainAxisAlignment.start,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
if (!isOutgoing) ...[
_buildAvatar(senderName, colorScheme),
const SizedBox(width: 8),
],
Flexible(
child: Container(
padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 8),
constraints: BoxConstraints(
maxWidth: MediaQuery.of(context).size.width * 0.65,
),
decoration: BoxDecoration(
color: bubbleColor,
borderRadius: BorderRadius.circular(16),
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
if (!isOutgoing) ...[
Text(
senderName,
style: TextStyle(
fontSize: 12,
fontWeight: FontWeight.bold,
color: colorScheme.primary,
),
),
const SizedBox(height: 4),
],
if (poi != null)
_buildPoiMessage(context, poi, textColor, metaColor)
else if (gifId != null)
GifMessage(
url: 'https://media.giphy.com/media/$gifId/giphy.gif',
backgroundColor: bubbleColor,
fallbackTextColor: textColor.withValues(alpha: 0.7),
)
else
Text(
message.text,
style: TextStyle(
color: textColor,
),
),
if (isOutgoing) ...[
const SizedBox(height: 4),
Text(
'Attempts: $attempts',
style: TextStyle(
fontSize: 10,
color: metaColor,
),
),
],
const SizedBox(height: 4),
Wrap(
spacing: 4,
crossAxisAlignment: WrapCrossAlignment.center,
children: [
Text(
_formatTime(message.timestamp),
style: TextStyle(
fontSize: 10,
color: metaColor,
),
),
if (isOutgoing) ...[
const SizedBox(width: 4),
_buildStatusIcon(metaColor),
],
if (message.tripTimeMs != null &&
message.status == MessageStatus.delivered) ...[
const SizedBox(width: 4),
Icon(
Icons.speed,
size: 10,
color: isOutgoing ? metaColor : Colors.green[700],
),
Text(
'${(message.tripTimeMs! / 1000).toStringAsFixed(1)}s',
style: TextStyle(
fontSize: 9,
color: isOutgoing ? metaColor : Colors.green[700],
),
),
],
],
),
],
),
),
),
],
),
),
if (message.reactions.isNotEmpty) ...[
const SizedBox(height: 4),
Padding(
padding: EdgeInsets.only(left: isOutgoing ? 0 : 48),
child: _buildReactionsDisplay(context, message, colorScheme),
),
],
],
),
);
}
String? _parseGifId(String text) {
final trimmed = text.trim();
final match = RegExp(r'^g:([A-Za-z0-9_-]+)$').firstMatch(trimmed);
return match?.group(1);
}
_PoiInfo? _parsePoiMessage(String text) {
final trimmed = text.trim();
final match = RegExp(r'^m:([\-0-9.]+),([\-0-9.]+)\|([^|]*)\|.*$')
.firstMatch(trimmed);
if (match == null) return null;
final lat = double.tryParse(match.group(1) ?? '');
final lon = double.tryParse(match.group(2) ?? '');
if (lat == null || lon == null) return null;
final label = match.group(3) ?? '';
return _PoiInfo(lat: lat, lon: lon, label: label);
}
Widget _buildPoiMessage(
BuildContext context,
_PoiInfo poi,
Color textColor,
Color metaColor,
) {
return Row(
crossAxisAlignment: CrossAxisAlignment.center,
children: [
IconButton(
icon: Icon(Icons.location_on_outlined, color: textColor),
padding: EdgeInsets.zero,
constraints: const BoxConstraints(minWidth: 32, minHeight: 32),
onPressed: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => MapScreen(
highlightPosition: LatLng(poi.lat, poi.lon),
highlightLabel: poi.label,
),
),
);
},
),
const SizedBox(width: 8),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
'POI Shared',
style: TextStyle(
color: textColor,
fontWeight: FontWeight.w600,
),
),
if (poi.label.isNotEmpty)
Text(
poi.label,
style: TextStyle(
color: metaColor,
fontSize: 12,
),
),
],
),
),
],
);
}
Widget _buildReactionsDisplay(BuildContext context, Message message, ColorScheme colorScheme) {
return Wrap(
spacing: 6,
runSpacing: 6,
children: message.reactions.entries.map((entry) {
final emoji = entry.key;
final count = entry.value;
return Container(
padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
decoration: BoxDecoration(
color: colorScheme.secondaryContainer,
borderRadius: BorderRadius.circular(12),
border: Border.all(
color: colorScheme.outline.withValues(alpha: 0.3),
width: 1,
),
),
child: Row(
mainAxisSize: MainAxisSize.min,
children: [
Text(
emoji,
style: const TextStyle(fontSize: 16),
),
if (count > 1) ...[
const SizedBox(width: 4),
Text(
'$count',
style: TextStyle(
fontSize: 12,
fontWeight: FontWeight.bold,
color: colorScheme.onSecondaryContainer,
),
),
],
],
),
);
}).toList(),
);
}
Widget _buildAvatar(String senderName, ColorScheme colorScheme) {
final initial = _getFirstCharacterOrEmoji(senderName);
final color = _getColorForName(senderName);
return CircleAvatar(
radius: 18,
backgroundColor: color.withValues(alpha: 0.2),
child: Text(
initial,
style: TextStyle(
fontSize: 14,
fontWeight: FontWeight.bold,
color: color,
),
),
);
}
String _getFirstCharacterOrEmoji(String name) {
if (name.isEmpty) return '?';
final emoji = firstEmoji(name);
if (emoji != null) return emoji;
final runes = name.runes.toList();
if (runes.isEmpty) return '?';
return String.fromCharCode(runes[0]).toUpperCase();
}
Color _getColorForName(String name) {
// Generate a consistent color based on the name hash
final hash = name.hashCode;
final colors = [
Colors.blue,
Colors.green,
Colors.orange,
Colors.purple,
Colors.pink,
Colors.teal,
Colors.indigo,
Colors.cyan,
Colors.amber,
Colors.deepOrange,
];
return colors[hash.abs() % colors.length];
}
Widget _buildStatusIcon(Color color) {
IconData icon;
switch (message.status) {
case MessageStatus.pending:
icon = Icons.access_time;
break;
case MessageStatus.sent:
icon = Icons.schedule;
break;
case MessageStatus.delivered:
icon = Icons.check;
break;
case MessageStatus.failed:
icon = Icons.error_outline;
break;
}
return Icon(
icon,
size: 12,
color: color,
);
}
String _formatTime(DateTime time) {
final hour = time.hour.toString().padLeft(2, '0');
final minute = time.minute.toString().padLeft(2, '0');
return '$hour:$minute';
}
}
class _PoiInfo {
final double lat;
final double lon;
final String label;
const _PoiInfo({
required this.lat,
required this.lon,
required this.label,
});
}