Remove 100ms BLE command delay

2026-08-11 16:30:28 +00:00 · 2026-03-07 09:23:29 +01:00
parent f6c5a3a4ca
commit 2bc0e21cf0
13 changed files with 260 additions and 274 deletions
--- a/lib/models/message_reception_details.dart
+++ b/lib/models/message_reception_details.dart
@@ -1,3 +1,26 @@
+const int _transmitEstimateToleranceMs = 1500;
+
+int? sanitizeEstimatedTransmitMs({
+  required int? estimatedTransmitMs,
+  required int? senderToReceiptMs,
+}) {
+  if (estimatedTransmitMs == null || estimatedTransmitMs <= 0) {
+    return null;
+  }
+
+  if (senderToReceiptMs == null || senderToReceiptMs <= 0) {
+    return estimatedTransmitMs;
+  }
+
+  // Sender timestamps are second-granularity, so allow a small cushion before
+  // treating the estimate as impossible for the observed delivery time.
+  if (estimatedTransmitMs > senderToReceiptMs + _transmitEstimateToleranceMs) {
+    return null;
+  }
+
+  return estimatedTransmitMs;
+}
+
 class MessageReceptionDetails {
  final DateTime capturedAt;
  final DateTime? packetLoggedAt;
--- a/lib/providers/app_provider.dart
+++ b/lib/providers/app_provider.dart
@@ -70,10 +70,6 @@ class AppProvider with ChangeNotifier {
  final Map<String, int> _voiceMissingRetryAttempts = {};
  final Map<String, Timer> _imageMissingRetryTimers = {};
  final Map<String, int> _imageMissingRetryAttempts = {};
-  final FragmentAckWaitRegistry _voiceFragmentAckWaiters =
-      FragmentAckWaitRegistry();
-  final FragmentAckWaitRegistry _imageFragmentAckWaiters =
-      FragmentAckWaitRegistry();
  final FragmentAckWaitRegistry _rawProbeWaiters = FragmentAckWaitRegistry();
  final Map<String, Future<bool>> _pendingRawRouteProbes = {};
  Timer? _packetCaptureFlushTimer;
@@ -468,27 +464,6 @@ class AppProvider with ChangeNotifier {
            payload: payload,
          );
        };
-    voiceProvider.waitForFragmentAckCallback =
-        ({
-          required sessionId,
-          required index,
-          timeout = const Duration(seconds: 8),
-        }) => _waitForVoiceFragmentAck(
-          sessionId: sessionId,
-          index: index,
-          timeout: timeout,
-        );
-    imageProvider.waitForFragmentAckCallback =
-        ({
-          required sessionId,
-          required index,
-          timeout = const Duration(seconds: 8),
-        }) => _waitForImageFragmentAck(
-          sessionId: sessionId,
-          index: index,
-          timeout: timeout,
-        );
-
    // When a contact is received from BLE
    connectionProvider.onContactReceived = (contact) {
      // Pass device public key to filter out our own contact
@@ -814,18 +789,27 @@ class AppProvider with ChangeNotifier {
    connectionProvider.onRawDataReceived = (payload, snrRaw, rssiDbm) {
      final rawProbeRequest = RawRouteProbeRequest.tryParseBinary(payload);
      if (rawProbeRequest != null) {
+        debugPrint(
+          '📡 [AppProvider] Incoming raw route probe: nonce=${rawProbeRequest.nonce.toRadixString(16)} requester=${rawProbeRequest.requesterKey6}',
+        );
        _handleRawRouteProbeRequest(rawProbeRequest);
        return;
      }

      final rawProbeAck = RawRouteProbeAck.tryParseBinary(payload);
      if (rawProbeAck != null) {
+        debugPrint(
+          '📡 [AppProvider] Incoming raw route probe ACK: nonce=${rawProbeAck.nonce.toRadixString(16)}',
+        );
        _completeRawRouteProbeAck(rawProbeAck.nonce);
        return;
      }

      final voiceFetchRequest = VoiceFetchRequest.tryParseBinary(payload);
      if (voiceFetchRequest != null) {
+        debugPrint(
+          '🎙️ [AppProvider] Incoming voice fetch request: session=${voiceFetchRequest.sessionId} want=${voiceFetchRequest.want} requester=${voiceFetchRequest.requesterKey6}',
+        );
        final requester = _resolveVoiceFetchRequester(voiceFetchRequest);
        if (requester == null) {
          debugPrint(
@@ -906,18 +890,6 @@ class AppProvider with ChangeNotifier {
        return;
      }

-      final voiceAck = VoiceFragmentAck.tryParseBinary(payload);
-      if (voiceAck != null) {
-        _completeVoiceFragmentAck(voiceAck.sessionId, voiceAck.index);
-        return;
-      }
-
-      final imageAck = ImageFragmentAck.tryParseBinary(payload);
-      if (imageAck != null) {
-        _completeImageFragmentAck(imageAck.sessionId, imageAck.index);
-        return;
-      }
-
      if (ImagePacket.isImageBinary(payload)) {
        final frag = ImagePacket.tryParseBinary(payload);
        if (frag == null) return;
@@ -928,7 +900,6 @@ class AppProvider with ChangeNotifier {
          width: session?.width ?? 0,
          height: session?.height ?? 0,
        );
-        _sendImageFragmentAck(frag);
        _scheduleImageMissingRetry(
          frag.sessionId,
          justComplete: imageProvider.isComplete(frag.sessionId),
@@ -941,7 +912,6 @@ class AppProvider with ChangeNotifier {
      if (pkt == null) return;
      debugPrint('🎙️ [AppProvider] Binary voice packet received: $pkt');
      final justComplete = voiceProvider.addPacket(pkt);
-      _sendVoiceFragmentAck(pkt);
      _scheduleVoiceMissingRetry(pkt.sessionId, justComplete: justComplete);
      // Insert or update the placeholder message in the chat list
      _handleIncomingVoicePacket(pkt, justComplete: justComplete);
@@ -1586,7 +1556,6 @@ class AppProvider with ChangeNotifier {
    messagesProvider.addMessage(placeholder, contactLookup: (_) => '');
  }

-  String _fragmentAckKey(String sessionId, int index) => '$sessionId:$index';
  String _rawProbeKey(int nonce) =>
      nonce.toRadixString(16).padLeft(8, '0').toLowerCase();

@@ -1627,6 +1596,9 @@ class AppProvider with ChangeNotifier {
      );

      try {
+        debugPrint(
+          '📡 [AppProvider] Outgoing raw route probe: target=${target.advName} hops=${target.outPathLen} nonce=${nonce.toRadixString(16)}',
+        );
        await connectionProvider.sendRawVoicePacket(
          contactPath: target.outPath,
          contactPathLen: target.outPathLen,
@@ -1660,54 +1632,6 @@ class AppProvider with ChangeNotifier {
    return 'name:${target.advName}:${target.outPathLen}:${target.outPath.map((b) => b.toRadixString(16).padLeft(2, '0')).join()}';
  }

-  Future<bool> _waitForVoiceFragmentAck({
-    required String sessionId,
-    required int index,
-    Duration timeout = const Duration(seconds: 8),
-  }) => _voiceFragmentAckWaiters.waitFor(
-    _fragmentAckKey(sessionId, index),
-    timeout: timeout,
-  );
-
-  void _completeVoiceFragmentAck(String sessionId, int index) {
-    final completed = _voiceFragmentAckWaiters.complete(
-      _fragmentAckKey(sessionId, index),
-    );
-    if (completed == 0) {
-      debugPrint(
-        'ℹ️ [AppProvider] Voice fragment ACK had no waiter: $sessionId#$index',
-      );
-      return;
-    }
-    debugPrint(
-      '✅ [AppProvider] Voice fragment ACK received for $sessionId#$index ($completed waiter(s))',
-    );
-  }
-
-  Future<bool> _waitForImageFragmentAck({
-    required String sessionId,
-    required int index,
-    Duration timeout = const Duration(seconds: 8),
-  }) => _imageFragmentAckWaiters.waitFor(
-    _fragmentAckKey(sessionId, index),
-    timeout: timeout,
-  );
-
-  void _completeImageFragmentAck(String sessionId, int index) {
-    final completed = _imageFragmentAckWaiters.complete(
-      _fragmentAckKey(sessionId, index),
-    );
-    if (completed == 0) {
-      debugPrint(
-        'ℹ️ [AppProvider] Image fragment ACK had no waiter: $sessionId#$index',
-      );
-      return;
-    }
-    debugPrint(
-      '✅ [AppProvider] Image fragment ACK received for $sessionId#$index ($completed waiter(s))',
-    );
-  }
-
  void _handleRawRouteProbeRequest(RawRouteProbeRequest request) {
    final requester = _resolveContactByPrefixHex(request.requesterKey6);
    if (requester == null) {
@@ -1726,6 +1650,9 @@ class AppProvider with ChangeNotifier {
    if (requester.outPath.isEmpty) {
      return;
    }
+    debugPrint(
+      '📡 [AppProvider] Outgoing raw route probe ACK: requester=${requester.advName} hops=${requester.outPathLen} nonce=${request.nonce.toRadixString(16)}',
+    );
    unawaited(
      connectionProvider.sendRawVoicePacket(
        contactPath: requester.outPath,
@@ -1739,46 +1666,6 @@ class AppProvider with ChangeNotifier {
    _rawProbeWaiters.complete(_rawProbeKey(nonce));
  }

-  void _sendVoiceFragmentAck(VoicePacket packet) {
-    final senderKey6 = _voiceSessionSenderKey6[packet.sessionId];
-    if (senderKey6 == null) return;
-    final sender = _resolveContactByPrefixHex(senderKey6);
-    if (sender == null) return;
-    if (sender.outPathLen < 0 || sender.outPathLen > _maxDirectPayloadHops) {
-      return;
-    }
-    unawaited(
-      connectionProvider.sendRawVoicePacket(
-        contactPath: sender.outPath,
-        contactPathLen: sender.outPathLen,
-        payload: VoiceFragmentAck(
-          sessionId: packet.sessionId,
-          index: packet.index,
-        ).encodeBinary(),
-      ),
-    );
-  }
-
-  void _sendImageFragmentAck(ImagePacket fragment) {
-    final senderKey6 = _imageSessionSenderKey6[fragment.sessionId];
-    if (senderKey6 == null) return;
-    final sender = _resolveContactByPrefixHex(senderKey6);
-    if (sender == null) return;
-    if (sender.outPathLen < 0 || sender.outPathLen > _maxDirectPayloadHops) {
-      return;
-    }
-    unawaited(
-      connectionProvider.sendRawVoicePacket(
-        contactPath: sender.outPath,
-        contactPathLen: sender.outPathLen,
-        payload: ImageFragmentAck(
-          sessionId: fragment.sessionId,
-          index: fragment.index,
-        ).encodeBinary(),
-      ),
-    );
-  }
-
  MessageReceptionDetails? _buildReceptionDetailsSnapshot(Message message) {
    final matchedRxLog = _findBestMatchingRxLog(message);
    final estimatedTx = estimateMessageTransmitDuration(
@@ -1788,9 +1675,12 @@ class AppProvider with ChangeNotifier {
      radioCr: connectionProvider.deviceInfo.radioCr,
    );
    final senderToReceiptMs = _senderToReceiptMs(message);
-    final estimatedTransmitMs = estimatedTx > Duration.zero
-        ? estimatedTx.inMilliseconds
-        : null;
+    final estimatedTransmitMs = sanitizeEstimatedTransmitMs(
+      estimatedTransmitMs: estimatedTx > Duration.zero
+          ? estimatedTx.inMilliseconds
+          : null,
+      senderToReceiptMs: senderToReceiptMs,
+    );
    final postTransmitDelayMs =
        senderToReceiptMs != null && estimatedTransmitMs != null
        ? (senderToReceiptMs - estimatedTransmitMs).clamp(0, 86400000).toInt()
--- a/lib/providers/helpers/raw_session_retransmit.dart
+++ b/lib/providers/helpers/raw_session_retransmit.dart
@@ -9,13 +9,6 @@ typedef RawPacketSender =
      required Uint8List payload,
    });

-typedef FragmentAckWaiter =
-    Future<bool> Function({
-      required String sessionId,
-      required int index,
-      Duration timeout,
-    });
-
 Future<bool> serveCachedSessionFragments<T>({
  required String providerLabel,
  required String sessionId,
@@ -25,9 +18,7 @@ Future<bool> serveCachedSessionFragments<T>({
  required int Function(T fragment) indexOf,
  required Uint8List Function(T fragment) encodeBinary,
  required RawPacketSender? sendRawPacket,
-  FragmentAckWaiter? waitForFragmentAck,
  Set<int>? requestedIndices,
-  Duration ackTimeout = const Duration(seconds: 8),
 }) async {
  if (fragments.isEmpty) {
    debugPrint('⚠️ [$providerLabel] No cached fragments for $sessionId');
@@ -65,24 +56,12 @@ Future<bool> serveCachedSessionFragments<T>({
      continue;
    }
    try {
-      final ackFuture = waitForFragmentAck?.call(
-        sessionId: sessionId,
-        index: index,
-        timeout: ackTimeout,
-      );
      await sendRawPacket(
        contactPath: requester.outPath,
        contactPathLen: requester.outPathLen,
        payload: encodeBinary(fragment),
      );
      servedCount++;
-      if (ackFuture != null) {
-        final acked = await ackFuture;
-        if (!acked) {
-          debugPrint('⚠️ [$providerLabel] ACK timeout for $sessionId#$index');
-          return false;
-        }
-      }
    } catch (e, st) {
      debugPrint(
        '❌ [$providerLabel] Serve error for $sessionId#$index: $e\n$st',
--- a/lib/providers/image_provider.dart
+++ b/lib/providers/image_provider.dart
@@ -70,12 +70,6 @@ class ImageProvider with ChangeNotifier {
    required Uint8List payload,
  })?
  sendRawPacketCallback;
-  Future<bool> Function({
-    required String sessionId,
-    required int index,
-    Duration timeout,
-  })?
-  waitForFragmentAckCallback;

  ImageProvider() {
    _restore();
@@ -264,7 +258,6 @@ class ImageProvider with ChangeNotifier {
      indexOf: (fragment) => fragment.index,
      encodeBinary: (fragment) => fragment.encodeBinary(),
      sendRawPacket: sendRawPacketCallback,
-      waitForFragmentAck: waitForFragmentAckCallback,
      requestedIndices: requestedIndices,
    );
  }
--- a/lib/providers/voice_provider.dart
+++ b/lib/providers/voice_provider.dart
@@ -71,12 +71,6 @@ class VoiceProvider with ChangeNotifier {
    required Uint8List payload,
  })?
  sendRawPacketCallback;
-  Future<bool> Function({
-    required String sessionId,
-    required int index,
-    Duration timeout,
-  })?
-  waitForFragmentAckCallback;

  final Map<String, _OutgoingVoiceSession> _outgoingSessions = {};

@@ -217,7 +211,6 @@ class VoiceProvider with ChangeNotifier {
      indexOf: (packet) => packet.index,
      encodeBinary: (packet) => packet.encodeBinary(),
      sendRawPacket: sendRawPacketCallback,
-      waitForFragmentAck: waitForFragmentAckCallback,
      requestedIndices: requestedIndices,
    );
  }
--- a/lib/widgets/messages/image_message_bubble.dart
+++ b/lib/widgets/messages/image_message_bubble.dart
@@ -406,6 +406,9 @@ class _ImageMessageBubbleState extends State<ImageMessageBubble> {

    final payload = request.encodeBinary();
    try {
+      debugPrint(
+        '📷 [ImageMessageBubble] Outgoing image fetch request: session=${envelope.sessionId} want=${isPartialResume ? 'missing' : 'all'} target=${sender.advName} hops=${sender.outPathLen}',
+      );
      await conn.sendRawVoicePacket(
        contactPath: sender.outPath,
        contactPathLen: sender.outPathLen,
--- a/lib/widgets/messages/message_bubble.dart
+++ b/lib/widgets/messages/message_bubble.dart
@@ -22,6 +22,7 @@ import '../../utils/sar_message_parser.dart';
 import '../../utils/key_comparison.dart';
 import '../../utils/voice_message_parser.dart';
 import '../../utils/image_message_parser.dart';
+import '../../utils/message_airtime_estimator.dart';
 import '../../utils/tictactoe_message_parser.dart';
 import '../../utils/location_formats.dart';
 import '../../l10n/app_localizations.dart';
@@ -2465,74 +2466,114 @@ class _MessageBubbleState extends State<MessageBubble> {
                // Show single message delivery status
                else if (!message.isChannelMessage ||
                    message.deliveryStatus == MessageDeliveryStatus.failed)
-                  Row(
-                    mainAxisSize: MainAxisSize.max,
-                    children: [
-                      Icon(
-                        getDeliveryStatusIcon(message.deliveryStatus),
-                        size: 12,
-                        color: getDeliveryStatusColor(message.deliveryStatus),
-                      ),
-                      const SizedBox(width: 3),
-                      Expanded(
-                        child: Align(
-                          alignment: Alignment.centerLeft,
-                          child: Text(
-                            message.getLocalizedDeliveryStatus(context),
-                            maxLines: 1,
-                            overflow: TextOverflow.ellipsis,
-                            style: Theme.of(context).textTheme.labelSmall
-                                ?.copyWith(
-                                  color: getDeliveryStatusColor(
-                                    message.deliveryStatus,
-                                  ),
-                                  fontStyle: FontStyle.italic,
+                  Builder(
+                    builder: (context) {
+                      final txEstimate = estimateMessageTransmitDuration(
+                        message,
+                        radioBw: connectionProvider.deviceInfo.radioBw,
+                        radioSf: connectionProvider.deviceInfo.radioSf,
+                        radioCr: connectionProvider.deviceInfo.radioCr,
+                      );
+                      final showSentDirectStats =
+                          message.isContactMessage &&
+                          message.deliveryStatus ==
+                              MessageDeliveryStatus.delivered &&
+                          _showReceivedStats &&
+                          message.roundTripTimeMs != null;
+
+                      return Column(
+                        crossAxisAlignment: CrossAxisAlignment.start,
+                        children: [
+                          Row(
+                            mainAxisSize: MainAxisSize.max,
+                            children: [
+                              Icon(
+                                getDeliveryStatusIcon(message.deliveryStatus),
+                                size: 12,
+                                color: getDeliveryStatusColor(
+                                  message.deliveryStatus,
                                ),
-                          ),
-                        ),
-                      ),
-                      // Show retry button for failed messages
-                      if (message.deliveryStatus ==
-                          MessageDeliveryStatus.failed) ...[
-                        const SizedBox(width: 6),
-                        GestureDetector(
-                          onTap: () => _retryFailedMessage(context, message),
-                          child: Container(
-                            padding: const EdgeInsets.symmetric(
-                              horizontal: 6,
-                              vertical: 2,
-                            ),
-                            decoration: BoxDecoration(
-                              color: Colors.orange.withValues(alpha: 0.2),
-                              borderRadius: BorderRadius.circular(4),
-                              border: Border.all(
-                                color: Colors.orange,
-                                width: 1,
                              ),
-                            ),
-                            child: Row(
-                              mainAxisSize: MainAxisSize.min,
-                              children: [
-                                const Icon(
-                                  Icons.refresh,
-                                  size: 12,
-                                  color: Colors.orange,
+                              const SizedBox(width: 3),
+                              Expanded(
+                                child: Align(
+                                  alignment: Alignment.centerLeft,
+                                  child: Text(
+                                    message.getLocalizedDeliveryStatus(context),
+                                    maxLines: 1,
+                                    overflow: TextOverflow.ellipsis,
+                                    style: Theme.of(context)
+                                        .textTheme
+                                        .labelSmall
+                                        ?.copyWith(
+                                          color: getDeliveryStatusColor(
+                                            message.deliveryStatus,
+                                          ),
+                                          fontStyle: FontStyle.italic,
+                                        ),
+                                  ),
                                ),
-                                const SizedBox(width: 4),
-                                Text(
-                                  'Retry',
-                                  style: Theme.of(context).textTheme.labelSmall
-                                      ?.copyWith(
-                                        color: Colors.orange,
-                                        fontWeight: FontWeight.bold,
+                              ),
+                              // Show retry button for failed messages
+                              if (message.deliveryStatus ==
+                                  MessageDeliveryStatus.failed) ...[
+                                const SizedBox(width: 6),
+                                GestureDetector(
+                                  onTap: () =>
+                                      _retryFailedMessage(context, message),
+                                  child: Container(
+                                    padding: const EdgeInsets.symmetric(
+                                      horizontal: 6,
+                                      vertical: 2,
+                                    ),
+                                    decoration: BoxDecoration(
+                                      color: Colors.orange.withValues(
+                                        alpha: 0.2,
                                      ),
+                                      borderRadius: BorderRadius.circular(4),
+                                      border: Border.all(
+                                        color: Colors.orange,
+                                        width: 1,
+                                      ),
+                                    ),
+                                    child: Row(
+                                      mainAxisSize: MainAxisSize.min,
+                                      children: [
+                                        const Icon(
+                                          Icons.refresh,
+                                          size: 12,
+                                          color: Colors.orange,
+                                        ),
+                                        const SizedBox(width: 4),
+                                        Text(
+                                          'Retry',
+                                          style: Theme.of(context)
+                                              .textTheme
+                                              .labelSmall
+                                              ?.copyWith(
+                                                color: Colors.orange,
+                                                fontWeight: FontWeight.bold,
+                                              ),
+                                        ),
+                                      ],
+                                    ),
+                                  ),
                                ),
                              ],
-                            ),
+                            ],
                          ),
-                        ),
-                      ],
-                    ],
+                          if (showSentDirectStats) ...[
+                            const SizedBox(height: 6),
+                            buildSentDirectSignalStatus(
+                              context,
+                              message,
+                              roundTripTimeMs: message.roundTripTimeMs!,
+                              txEstimate: txEstimate,
+                            ),
+                          ],
+                        ],
+                      );
+                    },
                  ),
                if (shouldShowSentChannelStats(
                  message,
--- a/lib/widgets/messages/message_bubble_signal.dart
+++ b/lib/widgets/messages/message_bubble_signal.dart
@@ -179,6 +179,85 @@ Widget buildReceivedSignalStatus(
  );
 }

+Widget buildSentDirectSignalStatus(
+  BuildContext context,
+  Message message, {
+  required int roundTripTimeMs,
+  required Duration txEstimate,
+}) {
+  final estimatedTransmitMs = sanitizeEstimatedTransmitMs(
+    estimatedTransmitMs: txEstimate > Duration.zero
+        ? txEstimate.inMilliseconds
+        : null,
+    senderToReceiptMs: roundTripTimeMs,
+  );
+  final postTransmitDelayMs = estimatedTransmitMs != null
+      ? (roundTripTimeMs - estimatedTransmitMs).clamp(0, 86400000).toInt()
+      : null;
+
+  return Wrap(
+    spacing: 4,
+    runSpacing: 4,
+    crossAxisAlignment: WrapCrossAlignment.center,
+    children: [
+      _techChip(
+        context,
+        icon: Icons.alt_route,
+        label: hopDisplayLabel(message),
+        color: Colors.indigo,
+      ),
+      _techChip(
+        context,
+        icon: Icons.schedule,
+        label: _formatMs(roundTripTimeMs),
+        color: Colors.deepPurple,
+      ),
+      if (estimatedTransmitMs != null)
+        _techChip(
+          context,
+          icon: Icons.timelapse,
+          label: '~${_formatMs(estimatedTransmitMs)} tx',
+          color: Colors.blue,
+        ),
+      if (postTransmitDelayMs != null)
+        _techChip(
+          context,
+          icon: Icons.hourglass_bottom,
+          label: '+${_formatMs(postTransmitDelayMs)} lag',
+          color: Colors.orange,
+        ),
+      if (message.retryAttempt > 0)
+        _techChip(
+          context,
+          icon: Icons.refresh,
+          label: 'retry ${message.retryAttempt}/3',
+          color: Colors.redAccent,
+        ),
+      if (message.suggestedTimeoutMs != null)
+        _techChip(
+          context,
+          icon: Icons.timer_outlined,
+          label: 'timeout ${_formatMs(message.suggestedTimeoutMs!)}',
+          color: Colors.blueGrey,
+        ),
+      if (message.usedFloodFallback)
+        _techChip(
+          context,
+          icon: Icons.waves,
+          label: 'flood fallback',
+          color: Colors.teal,
+        )
+      else if (message.expectedAckTag != null)
+        _techChip(
+          context,
+          icon: Icons.route,
+          label: 'direct ACK',
+          color: Colors.indigo,
+        ),
+    ],
+  );
+}
+
 String _formatMs(int value) {
  if (value >= 60000) {
    final minutes = value ~/ 60000;
--- a/lib/widgets/messages/voice_message_bubble.dart
+++ b/lib/widgets/messages/voice_message_bubble.dart
@@ -374,6 +374,9 @@ class _VoiceMessageBubbleState extends State<VoiceMessageBubble> {
          );

    try {
+      debugPrint(
+        '🎙️ [VoiceMessageBubble] Outgoing voice fetch request: session=$sessionId want=${isPartialResume ? 'missing' : 'all'} target=${sender.advName} hops=${sender.outPathLen}',
+      );
      await connectionProvider.sendRawVoicePacket(
        contactPath: sender.outPath,
        contactPathLen: sender.outPathLen,