mirror of
https://github.com/dz0ny/meshcore-sar.git
synced 2026-08-11 16:30:28 +00:00
Refactor map tab and messages tab UI; enhance settings screen with sample data loading and clearing functionality; improve map markers display
This commit is contained in:
Janez T
214
lib/utils/sample_data_generator.dart
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214
lib/utils/sample_data_generator.dart
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import 'dart:typed_data';
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import 'dart:math';
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import 'package:latlong2/latlong.dart';
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import '../models/contact.dart';
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import '../models/contact_telemetry.dart';
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import '../models/message.dart';
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import '../models/sar_marker.dart';
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/// Generates sample data for testing/demo purposes
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class SampleDataGenerator {
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static final Random _random = Random();
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/// Generate sample contacts around a center location
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static List<Contact> generateContacts({
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required LatLng centerLocation,
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int teamMemberCount = 5,
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int channelCount = 2,
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}) {
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final contacts = <Contact>[];
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final now = DateTime.now();
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final teamNames = [
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'Alpha Team Lead',
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'Bravo Scout',
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'Charlie Medic',
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'Delta Navigator',
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'Echo Support',
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'Foxtrot Runner',
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'Golf Comms',
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'Hotel Base',
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];
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final channelNames = [
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'General',
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'Emergency',
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'Coordination',
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'Updates',
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];
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// Generate team members (chat contacts)
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for (int i = 0; i < teamMemberCount && i < teamNames.length; i++) {
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// Generate location within ~1km radius
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final latOffset = (_random.nextDouble() - 0.5) * 0.02; // ~1km
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final lonOffset = (_random.nextDouble() - 0.5) * 0.02;
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final lat = centerLocation.latitude + latOffset;
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final lon = centerLocation.longitude + lonOffset;
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// Generate random public key
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final publicKey = Uint8List.fromList(
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List.generate(32, (_) => _random.nextInt(256)),
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);
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// Random battery 20-100%
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final battery = 20 + _random.nextInt(81);
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// Random temperature 15-35°C
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final temp = 15.0 + _random.nextDouble() * 20.0;
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final telemetry = ContactTelemetry(
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gpsLocation: LatLng(lat, lon),
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batteryPercentage: battery.toDouble(),
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batteryMilliVolts: 3000.0 + (battery / 100.0) * 1200.0,
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temperature: temp,
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timestamp: now.subtract(Duration(minutes: _random.nextInt(10))),
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);
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final contact = Contact(
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publicKey: publicKey,
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type: ContactType.chat,
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flags: 0,
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outPathLen: 1,
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outPath: Uint8List(32),
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advName: teamNames[i],
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lastAdvert: now.millisecondsSinceEpoch ~/ 1000,
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advLat: (lat * 1e7).toInt(),
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advLon: (lon * 1e7).toInt(),
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lastMod: now.millisecondsSinceEpoch ~/ 1000,
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telemetry: telemetry,
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);
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contacts.add(contact);
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}
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// Generate channels/rooms
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for (int i = 0; i < channelCount && i < channelNames.length; i++) {
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// Generate random public key
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final publicKey = Uint8List.fromList(
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List.generate(32, (_) => _random.nextInt(256)),
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);
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// Channel index stored in outPath[0]
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final outPath = Uint8List(32);
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outPath[0] = i; // Channel index
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final channel = Contact(
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publicKey: publicKey,
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type: ContactType.room,
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flags: 0,
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outPathLen: 1,
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outPath: outPath,
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advName: channelNames[i],
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lastAdvert: now.millisecondsSinceEpoch ~/ 1000,
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advLat: 0, // Channels don't have location
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advLon: 0,
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lastMod: now.millisecondsSinceEpoch ~/ 1000,
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);
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contacts.add(channel);
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}
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return contacts;
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}
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/// Generate sample SAR markers around a center location
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static List<Message> generateSarMarkerMessages({
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required LatLng centerLocation,
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int foundPersonCount = 2,
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int fireCount = 1,
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int stagingCount = 1,
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}) {
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final messages = <Message>[];
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final now = DateTime.now();
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int messageId = 1;
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// Generate found person markers
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for (int i = 0; i < foundPersonCount; i++) {
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final latOffset = (_random.nextDouble() - 0.5) * 0.015;
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final lonOffset = (_random.nextDouble() - 0.5) * 0.015;
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final lat = centerLocation.latitude + latOffset;
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final lon = centerLocation.longitude + lonOffset;
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final senderKey = Uint8List.fromList(
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List.generate(32, (_) => _random.nextInt(256)),
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);
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final timestamp = now.subtract(Duration(minutes: 10 + i * 5));
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messages.add(Message(
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id: 'sample_fp_$messageId',
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messageType: MessageType.contact,
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senderPublicKeyPrefix: senderKey.sublist(0, 6),
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pathLen: 1,
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textType: MessageTextType.plain,
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senderTimestamp: timestamp.millisecondsSinceEpoch ~/ 1000,
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text: 'S:🧑:${lat.toStringAsFixed(4)},${lon.toStringAsFixed(4)}',
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receivedAt: timestamp,
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isSarMarker: true,
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sarMarkerType: SarMarkerType.foundPerson,
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sarGpsCoordinates: LatLng(lat, lon),
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senderName: 'Sample Team Member',
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));
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messageId++;
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}
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// Generate fire markers
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for (int i = 0; i < fireCount; i++) {
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final latOffset = (_random.nextDouble() - 0.5) * 0.015;
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final lonOffset = (_random.nextDouble() - 0.5) * 0.015;
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final lat = centerLocation.latitude + latOffset;
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final lon = centerLocation.longitude + lonOffset;
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final senderKey = Uint8List.fromList(
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List.generate(32, (_) => _random.nextInt(256)),
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);
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final timestamp = now.subtract(Duration(minutes: 20 + i * 5));
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messages.add(Message(
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id: 'sample_fire_$messageId',
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messageType: MessageType.contact,
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senderPublicKeyPrefix: senderKey.sublist(0, 6),
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pathLen: 1,
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textType: MessageTextType.plain,
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senderTimestamp: timestamp.millisecondsSinceEpoch ~/ 1000,
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text: 'S:🔥:${lat.toStringAsFixed(4)},${lon.toStringAsFixed(4)}',
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receivedAt: timestamp,
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isSarMarker: true,
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sarMarkerType: SarMarkerType.fire,
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sarGpsCoordinates: LatLng(lat, lon),
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senderName: 'Sample Scout',
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));
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messageId++;
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}
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// Generate staging area markers
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for (int i = 0; i < stagingCount; i++) {
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final latOffset = (_random.nextDouble() - 0.5) * 0.015;
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final lonOffset = (_random.nextDouble() - 0.5) * 0.015;
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final lat = centerLocation.latitude + latOffset;
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final lon = centerLocation.longitude + lonOffset;
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final senderKey = Uint8List.fromList(
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List.generate(32, (_) => _random.nextInt(256)),
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);
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final timestamp = now.subtract(Duration(minutes: 30 + i * 5));
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messages.add(Message(
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id: 'sample_staging_$messageId',
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messageType: MessageType.contact,
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senderPublicKeyPrefix: senderKey.sublist(0, 6),
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pathLen: 1,
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textType: MessageTextType.plain,
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senderTimestamp: timestamp.millisecondsSinceEpoch ~/ 1000,
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text: 'S:🏕️:${lat.toStringAsFixed(4)},${lon.toStringAsFixed(4)}',
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receivedAt: timestamp,
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isSarMarker: true,
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sarMarkerType: SarMarkerType.stagingArea,
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sarGpsCoordinates: LatLng(lat, lon),
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senderName: 'Sample Base',
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));
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messageId++;
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}
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return messages;
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}
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}
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