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feat: Implement location tracking service and haptic feedback for device advertising

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Janez T
2025-10-16 21:27:22 +02:00
parent c6c56f858d
commit 58d8ef0dae
18 changed files with 203 additions and 16 deletions
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29
lib/services/location_tracking_service.dart
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@@ -53,7 +53,7 @@ class LocationTrackingService {
double maxDistanceMeters = 100.0;
/// Minimum time interval in seconds between broadcasts
int minTimeIntervalSeconds = 155;
int minTimeIntervalSeconds = 30;
/// GPS update distance filter for position stream
double gpsUpdateDistance = 10.0;
@@ -380,6 +380,18 @@ class LocationTrackingService {
return;
}
// CRITICAL: Enforce minimum time between broadcasts to prevent mesh flooding
// This protects the mesh network from being overwhelmed by position updates
if (_lastBroadcastTime != null) {
final timeSinceLastBroadcast = DateTime.now().difference(_lastBroadcastTime!);
if (timeSinceLastBroadcast.inSeconds < minTimeIntervalSeconds) {
debugPrint(
'⏸️ [LocationTracking] Skipping broadcast: only ${timeSinceLastBroadcast.inSeconds}s since last broadcast (minimum: ${minTimeIntervalSeconds}s)',
);
return;
}
}
try {
debugPrint('📤 [LocationTracking] Broadcasting position to mesh network');
@@ -389,10 +401,10 @@ class LocationTrackingService {
longitude: position.longitude,
);
// Send advertisement to mesh network
// Send advertisement to mesh network (only ONE advert per position update)
await _bleService!.sendSelfAdvert(floodMode: true);
// Update broadcast tracking
// Update broadcast tracking IMMEDIATELY to prevent duplicate broadcasts
_lastBroadcastPosition = position;
_lastBroadcastTime = DateTime.now();
@@ -402,6 +414,7 @@ class LocationTrackingService {
await prefs.setDouble(_prefKeyLastLon, position.longitude);
debugPrint('✅ [LocationTracking] Position broadcast successful');
debugPrint(' Next broadcast allowed in ${minTimeIntervalSeconds}s');
onBroadcastSent?.call(position);
} catch (e) {
debugPrint('❌ [LocationTracking] Failed to broadcast position: $e');
@@ -412,6 +425,9 @@ class LocationTrackingService {
/// Manually broadcast current location immediately
///
/// Useful for "Send Location Now" button functionality.
/// Note: Manual broadcasts bypass automatic throttling and can be sent anytime.
/// However, they still update the last broadcast time to maintain proper spacing
/// for subsequent automatic broadcasts.
Future<bool> broadcastLocationNow() async {
if (!_isInitialized || _bleService == null) {
onError?.call('Location tracking service not initialized');
@@ -431,7 +447,9 @@ class LocationTrackingService {
return false;
}
// Broadcast regardless of thresholds
debugPrint('📤 [LocationTracking] Manual broadcast requested');
// Broadcast regardless of automatic throttling thresholds
await _bleService!.setAdvertLatLon(
latitude: position.latitude,
longitude: position.longitude,
@@ -439,11 +457,12 @@ class LocationTrackingService {
await _bleService!.sendSelfAdvert(floodMode: true);
// Update broadcast tracking
// Update broadcast tracking to maintain proper spacing for automatic broadcasts
_lastBroadcastPosition = position;
_lastBroadcastTime = DateTime.now();
debugPrint('✅ [LocationTracking] Manual broadcast successful');
debugPrint(' Automatic broadcasts will resume after ${minTimeIntervalSeconds}s');
onBroadcastSent?.call(position);
return true;