Show hoseline
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314
lib/views/hose_view.dart
Normal file
314
lib/views/hose_view.dart
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@@ -0,0 +1,314 @@
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import 'dart:async';
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import 'dart:convert';
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import 'package:flutter/material.dart';
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import '../models/hose_item.dart';
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import '../services/lastheard_websocket_client.dart';
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class HoseView extends StatefulWidget {
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const HoseView({super.key});
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@override
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State<HoseView> createState() => _HoseViewState();
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}
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class _HoseViewState extends State<HoseView> {
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final Map<int, HoseItem> _hoseItems = {};
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LastHeardWebSocketClient? _wsClient;
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StreamSubscription<Map<String, dynamic>>? _wsSubscription;
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Timer? _activityTimer;
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bool _isConnecting = true;
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// Time threshold to consider a talkgroup as "active" (5 seconds)
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static const Duration _activityThreshold = Duration(seconds: 5);
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@override
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void initState() {
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super.initState();
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_connectWebSocket();
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_startActivityTimer();
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}
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@override
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void dispose() {
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_wsSubscription?.cancel();
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_wsClient?.dispose();
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_activityTimer?.cancel();
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super.dispose();
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}
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Future<void> _connectWebSocket() async {
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if (!mounted) return;
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try {
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_wsClient = LastHeardWebSocketClient();
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_wsClient!.connect();
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_wsSubscription = _wsClient!.messageStream.listen((message) {
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_handleMqttMessage(message);
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});
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// Give it a short moment to connect, then hide loading
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await Future.delayed(const Duration(milliseconds: 500));
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if (mounted) {
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setState(() {
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_isConnecting = false;
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});
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}
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} catch (e) {
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debugPrint('HoseView: Error connecting to WebSocket: $e');
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if (mounted) {
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setState(() {
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_isConnecting = false;
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});
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}
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}
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}
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void _handleMqttMessage(Map<String, dynamic> message) {
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try {
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// Check if this is an MQTT event message
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if (message['event'] == 'mqtt' && message['data'] is Map) {
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final data = message['data'] as Map<String, dynamic>;
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final topic = data['topic'] as String?;
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if (topic == 'LH') {
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final payloadStr = data['payload'] as String?;
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if (payloadStr == null) return;
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final payload = jsonDecode(payloadStr) as Map<String, dynamic>;
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final talkgroupId = payload['DestinationID'] as int?;
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final talkgroupName = payload['DestinationName'] as String?;
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final sourceCall = payload['SourceCall'] as String?;
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final sourceName = payload['SourceName'] as String?;
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final slot = payload['Slot'] as int?;
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final event = payload['Event'] as String?;
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final start = payload['Start'] as int?;
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if (talkgroupId == null || sourceCall == null || slot == null || start == null) {
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return;
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}
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final lastActivity = DateTime.fromMillisecondsSinceEpoch(start * 1000);
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final isActive = event == 'Session-Start';
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if (mounted) {
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setState(() {
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_hoseItems[talkgroupId] = HoseItem(
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talkgroupId: talkgroupId,
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talkgroupName: talkgroupName ?? 'TG $talkgroupId',
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sourceCall: sourceCall,
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sourceName: sourceName,
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slot: slot,
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lastActivity: lastActivity,
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isActive: isActive,
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);
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});
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}
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}
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}
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} catch (e) {
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debugPrint('HoseView: Error handling MQTT message: $e');
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}
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}
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void _startActivityTimer() {
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// Update activity status every second
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_activityTimer = Timer.periodic(const Duration(seconds: 1), (_) {
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final now = DateTime.now();
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bool needsUpdate = false;
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for (final item in _hoseItems.values) {
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if (item.isActive && now.difference(item.lastActivity) > _activityThreshold) {
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needsUpdate = true;
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break;
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}
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}
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if (needsUpdate) {
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setState(() {
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final now = DateTime.now();
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_hoseItems.updateAll((key, item) {
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if (item.isActive && now.difference(item.lastActivity) > _activityThreshold) {
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return item.copyWith(isActive: false);
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}
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return item;
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});
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});
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}
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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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title: const Text('Hose'),
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),
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body: _buildBody(),
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);
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}
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Widget _buildBody() {
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if (_isConnecting) {
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return const Center(
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child: CircularProgressIndicator(),
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);
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}
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if (_hoseItems.isEmpty) {
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return Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(
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Icons.water_drop_outlined,
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size: 64,
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color: Colors.grey[400],
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),
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const SizedBox(height: 16),
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Text(
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'No active talkgroups',
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style: Theme.of(context).textTheme.titleLarge,
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),
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const SizedBox(height: 8),
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Text(
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'Waiting for activity...',
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style: TextStyle(color: Colors.grey[600]),
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),
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],
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),
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);
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}
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final items = _hoseItems.values.toList()
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..sort((a, b) => a.talkgroupId.compareTo(b.talkgroupId));
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return GridView.builder(
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padding: const EdgeInsets.all(8),
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gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
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crossAxisCount: 2,
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childAspectRatio: 1.0,
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crossAxisSpacing: 8,
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mainAxisSpacing: 8,
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),
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itemCount: items.length,
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itemBuilder: (context, index) {
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final item = items[index];
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return _buildHoseCard(item);
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},
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);
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}
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Widget _buildHoseCard(HoseItem item) {
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final now = DateTime.now();
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final timeSinceActivity = now.difference(item.lastActivity);
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String timeAgo;
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if (timeSinceActivity.inSeconds < 60) {
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timeAgo = '${timeSinceActivity.inSeconds}s ago';
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} else if (timeSinceActivity.inMinutes < 60) {
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timeAgo = '${timeSinceActivity.inMinutes}m ago';
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} else {
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timeAgo = '${timeSinceActivity.inHours}h ago';
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}
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return Card(
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elevation: item.isActive ? 4 : 1,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(12),
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side: item.isActive
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? BorderSide(
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color: Theme.of(context).colorScheme.primary,
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width: 3,
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)
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: BorderSide.none,
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),
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child: Container(
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padding: const EdgeInsets.all(12),
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child: Column(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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// Talkgroup header
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Row(
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children: [
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Container(
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padding: const EdgeInsets.symmetric(horizontal: 6, vertical: 2),
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decoration: BoxDecoration(
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color: Theme.of(context).colorScheme.primaryContainer,
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borderRadius: BorderRadius.circular(4),
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),
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child: Text(
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'TS${item.slot}',
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style: TextStyle(
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fontSize: 10,
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fontWeight: FontWeight.bold,
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color: Theme.of(context).colorScheme.onPrimaryContainer,
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),
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),
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),
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const SizedBox(width: 4),
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if (item.isActive)
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Icon(
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Icons.mic,
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size: 16,
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color: Theme.of(context).colorScheme.primary,
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),
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],
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),
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// Talkgroup name
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Expanded(
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child: Center(
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child: Text(
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item.talkgroupName,
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style: Theme.of(context).textTheme.titleMedium?.copyWith(
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fontWeight: FontWeight.bold,
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),
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textAlign: TextAlign.center,
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maxLines: 2,
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overflow: TextOverflow.ellipsis,
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),
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),
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),
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// Last talker info
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Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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item.displayName,
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style: Theme.of(context).textTheme.bodySmall?.copyWith(
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fontWeight: FontWeight.w600,
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),
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maxLines: 1,
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overflow: TextOverflow.ellipsis,
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),
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const SizedBox(height: 2),
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Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Text(
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'TG ${item.talkgroupId}',
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style: Theme.of(context).textTheme.bodySmall?.copyWith(
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color: Colors.grey[600],
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fontSize: 10,
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),
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),
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Text(
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timeAgo,
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style: Theme.of(context).textTheme.bodySmall?.copyWith(
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color: Colors.grey[600],
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fontSize: 10,
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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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@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
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import 'info_view.dart';
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import 'last_heard_view.dart';
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import 'devices_view.dart';
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import 'hose_view.dart';
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class MainView extends StatefulWidget {
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const MainView({super.key});
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@@ -15,6 +16,7 @@ class _MainViewState extends State<MainView> {
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final List<Widget> _views = const [
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DevicesView(),
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HoseView(),
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LastHeardView(),
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InfoView(),
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];
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@@ -24,6 +26,7 @@ class _MainViewState extends State<MainView> {
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return Scaffold(
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body: _views[_selectedIndex],
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bottomNavigationBar: BottomNavigationBar(
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type: BottomNavigationBarType.fixed,
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currentIndex: _selectedIndex,
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onTap: (index) => setState(() => _selectedIndex = index),
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items: const [
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@@ -31,6 +34,10 @@ class _MainViewState extends State<MainView> {
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icon: Icon(Icons.devices),
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label: 'Devices',
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),
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BottomNavigationBarItem(
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icon: Icon(Icons.water_drop),
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label: 'Hose',
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),
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BottomNavigationBarItem(
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icon: Icon(Icons.history),
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label: 'Last Heard',
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