WIP: Wifi aware mesh

app/src/main/AndroidManifest.xml

@@ -5,6 +5,7 @@
     <!-- Internet permissions for Nostr relay connections -->
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
 
     <!-- Bluetooth permissions -->
     <uses-permission android:name="android.permission.BLUETOOTH" android:maxSdkVersion="30" />
@@ -19,6 +20,12 @@
 
     <!-- Notification permissions -->
     <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
+
+    <!-- Wi‑Fi / Wi‑Fi Aware permissions -->
+    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
+    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
+    <!-- Android 13+ runtime permission for Wi‑Fi operations (including Aware) -->
+    <uses-permission android:name="android.permission.NEARBY_WIFI_DEVICES" />
 
     <!-- Microphone for voice notes -->
     <uses-permission android:name="android.permission.RECORD_AUDIO" />
@@ -38,6 +45,8 @@
     <!-- Hardware features -->
     <uses-feature android:name="android.hardware.bluetooth_le" android:required="true" />
     <uses-feature android:name="android.hardware.bluetooth" android:required="true" />
+    <!-- Device support hint for Wi‑Fi Aware (optional) -->
+    <uses-feature android:name="android.hardware.wifi.aware" android:required="false" />
 
     <application
         android:name=".BitchatApplication"

app/src/main/java/com/bitchat/android/BitchatApplication.kt

@@ -41,6 +41,12 @@ class BitchatApplication : Application() {
         // Initialize debug preference manager (persists debug toggles)
         try { com.bitchat.android.ui.debug.DebugPreferenceManager.init(this) } catch (_: Exception) { }
 
+        // Initialize Wi‑Fi Aware controller with persisted default
+        try {
+            val enabled = com.bitchat.android.ui.debug.DebugPreferenceManager.getWifiAwareEnabled(false)
+            com.bitchat.android.wifiaware.WifiAwareController.initialize(this, enabled)
+        } catch (_: Exception) { }
+
         // TorManager already initialized above
     }
 }

app/src/main/java/com/bitchat/android/MainActivity.kt

@@ -73,6 +73,8 @@ class MainActivity : OrientationAwareActivity() {
         permissionManager = PermissionManager(this)
         // Initialize core mesh service first
         meshService = BluetoothMeshService(this)
+        // Expose BLE mesh to Wi‑Fi Aware controller for cross-transport relays
+        try { com.bitchat.android.wifiaware.WifiAwareController.setBleMeshService(meshService) } catch (_: Exception) { }
         bluetoothStatusManager = BluetoothStatusManager(
             activity = this,
             context = this,
@@ -120,6 +122,45 @@ class MainActivity : OrientationAwareActivity() {
                 }
             }
         }
+
+        // Bridge Wi‑Fi Aware callbacks into ChatViewModel (reusing BLE delegate methods)
+        lifecycleScope.launch {
+            repeatOnLifecycle(Lifecycle.State.STARTED) {
+                com.bitchat.android.wifiaware.WifiAwareController.running.collect { running ->
+                    val svc = com.bitchat.android.wifiaware.WifiAwareController.getService()
+                    if (running && svc != null) {
+                        svc.delegate = object : com.bitchat.android.wifiaware.WifiAwareMeshDelegate {
+                            override fun didReceiveMessage(message: com.bitchat.android.model.BitchatMessage) {
+                                chatViewModel.didReceiveMessage(message)
+                            }
+                            override fun didUpdatePeerList(peers: List<String>) {
+                                chatViewModel.didUpdatePeerList(peers)
+                            }
+                            override fun didReceiveChannelLeave(channel: String, fromPeer: String) {
+                                chatViewModel.didReceiveChannelLeave(channel, fromPeer)
+                            }
+                            override fun didReceiveDeliveryAck(messageID: String, recipientPeerID: String) {
+                                chatViewModel.didReceiveDeliveryAck(messageID, recipientPeerID)
+                            }
+                            override fun didReceiveReadReceipt(messageID: String, recipientPeerID: String) {
+                                chatViewModel.didReceiveReadReceipt(messageID, recipientPeerID)
+                            }
+                            override fun decryptChannelMessage(encryptedContent: ByteArray, channel: String): String? {
+                                return chatViewModel.decryptChannelMessage(encryptedContent, channel)
+                            }
+                            override fun getNickname(): String? {
+                                return chatViewModel.getNickname()
+                            }
+                            override fun isFavorite(peerID: String): Boolean {
+                                return try {
+                                    com.bitchat.android.favorites.FavoritesPersistenceService.shared.getFavoriteStatus(peerID)?.isMutual == true
+                                } catch (_: Exception) { false }
+                            }
+                        }
+                    }
+                }
+            }
+        }
 
         // Only start onboarding process if we're in the initial CHECKING state
         // This prevents restarting onboarding on configuration changes
@@ -308,6 +349,12 @@ class MainActivity : OrientationAwareActivity() {
         bluetoothStatusManager.logBluetoothStatus()
         mainViewModel.updateBluetoothStatus(bluetoothStatusManager.checkBluetoothStatus())
 
+        val bleRequired = try { com.bitchat.android.ui.debug.DebugPreferenceManager.getBleEnabled(true) } catch (_: Exception) { true }
+        if (!bleRequired) {
+            // Skip BLE checks entirely when BLE is disabled in debug settings
+            checkLocationAndProceed()
+            return
+        }
         when (mainViewModel.bluetoothStatus.value) {
             BluetoothStatus.ENABLED -> {
                 // Bluetooth is enabled, check location services next
@@ -474,8 +521,9 @@ class MainActivity : OrientationAwareActivity() {
             else -> BatteryOptimizationStatus.ENABLED
         }
 
+        val bleRequired2 = try { com.bitchat.android.ui.debug.DebugPreferenceManager.getBleEnabled(true) } catch (_: Exception) { true }
         when {
-            currentBluetoothStatus != BluetoothStatus.ENABLED -> {
+            bleRequired2 && currentBluetoothStatus != BluetoothStatus.ENABLED -> {
                 // Bluetooth still disabled, but now we have permissions to enable it
                 Log.d("MainActivity", "Permissions granted, but Bluetooth still disabled. Showing Bluetooth enable screen.")
                 mainViewModel.updateBluetoothStatus(currentBluetoothStatus)

app/src/main/java/com/bitchat/android/mesh/BluetoothMeshService.kt

@@ -249,7 +249,8 @@ class BluetoothMeshService(private val context: Context) {
             override fun sendPacket(packet: BitchatPacket) {
                 // Sign the packet before broadcasting
                 val signedPacket = signPacketBeforeBroadcast(packet)
-                connectionManager.broadcastPacket(RoutedPacket(signedPacket))
+                val routed = RoutedPacket(signedPacket)
+                connectionManager.broadcastPacket(routed)
             }
 
             override fun relayPacket(routed: RoutedPacket) {

app/src/main/java/com/bitchat/android/onboarding/OnboardingCoordinator.kt

@@ -209,6 +209,7 @@ class OnboardingCoordinator(
         return when {
             permission.contains("BLUETOOTH") -> "Bluetooth/Nearby Devices"
             permission.contains("LOCATION") -> "Location (for Bluetooth scanning)"
+            permission.contains("NEARBY_WIFI") -> "Nearby Wi‑Fi Devices (for Wi‑Fi Aware)"
             permission.contains("NOTIFICATION") -> "Notifications"
             else -> permission.substringAfterLast(".")
         }

app/src/main/java/com/bitchat/android/onboarding/PermissionExplanationScreen.kt

@@ -11,6 +11,7 @@ import androidx.compose.material.icons.filled.Notifications
 import androidx.compose.material.icons.filled.Power
 import androidx.compose.material.icons.filled.Mic
 import androidx.compose.material.icons.filled.Security
+import androidx.compose.material.icons.filled.Wifi
 import androidx.compose.material.icons.filled.Settings
 import androidx.compose.material.icons.filled.Warning
 import androidx.compose.material3.*
@@ -242,6 +243,7 @@ private fun getPermissionIcon(permissionType: PermissionType): ImageVector {
         PermissionType.PRECISE_LOCATION -> Icons.Filled.LocationOn
         PermissionType.MICROPHONE -> Icons.Filled.Mic
         PermissionType.NOTIFICATIONS -> Icons.Filled.Notifications
+        PermissionType.WIFI_AWARE -> Icons.Filled.Wifi
         PermissionType.BATTERY_OPTIMIZATION -> Icons.Filled.Power
         PermissionType.OTHER -> Icons.Filled.Settings
     }

app/src/main/java/com/bitchat/android/onboarding/PermissionManager.kt

@@ -67,6 +67,11 @@ class PermissionManager(private val context: Context) {
             Manifest.permission.ACCESS_FINE_LOCATION
         ))
 
+        // Wi‑Fi Aware: Android 13+ requires NEARBY_WIFI_DEVICES runtime permission
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            permissions.add(Manifest.permission.NEARBY_WIFI_DEVICES)
+        }
+
         // Notification permission intentionally excluded to keep it optional
 
         return permissions
@@ -177,6 +182,20 @@ class PermissionManager(private val context: Context) {
             )
         )
 
+        // Wi‑Fi Aware category (Android 13+)
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            val wifiAwarePermissions = listOf(Manifest.permission.NEARBY_WIFI_DEVICES)
+            categories.add(
+                PermissionCategory(
+                    type = PermissionType.WIFI_AWARE,
+                    description = "Enable Wi‑Fi Aware to discover and connect to nearby bitchat users over Wi‑Fi.",
+                    permissions = wifiAwarePermissions,
+                    isGranted = wifiAwarePermissions.all { isPermissionGranted(it) },
+                    systemDescription = "Allow bitchat to discover nearby Wi‑Fi devices"
+                )
+            )
+        }
+
         // Notifications category (if applicable)
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
             categories.add(
@@ -262,6 +281,7 @@ enum class PermissionType(val nameValue: String) {
     PRECISE_LOCATION("Precise Location"),
     MICROPHONE("Microphone"),
     NOTIFICATIONS("Notifications"),
+    WIFI_AWARE("Wi‑Fi Aware"),
     BATTERY_OPTIMIZATION("Battery Optimization"),
     OTHER("Other")
 }

app/src/main/java/com/bitchat/android/services/MessageRouter.kt

@@ -72,9 +72,15 @@ class MessageRouter private constructor(
 
         val hasMesh = mesh.getPeerInfo(toPeerID)?.isConnected == true
         val hasEstablished = mesh.hasEstablishedSession(toPeerID)
+        // Check Wi‑Fi Aware availability as a secondary transport
+        val aware = try { com.bitchat.android.wifiaware.WifiAwareController.getService() } catch (_: Exception) { null }
+        val hasAware = try { aware?.getPeerInfo(toPeerID)?.isConnected == true && aware.hasEstablishedSession(toPeerID) } catch (_: Exception) { false }
         if (hasMesh && hasEstablished) {
             Log.d(TAG, "Routing PM via mesh to ${toPeerID} msg_id=${messageID.take(8)}…")
             mesh.sendPrivateMessage(content, toPeerID, recipientNickname, messageID)
+        } else if (hasAware) {
+            Log.d(TAG, "Routing PM via Wi‑Fi Aware to ${toPeerID} msg_id=${messageID.take(8)}…")
+            aware?.sendPrivateMessage(content, toPeerID, recipientNickname, messageID)
         } else if (canSendViaNostr(toPeerID)) {
             Log.d(TAG, "Routing PM via Nostr to ${toPeerID.take(32)}… msg_id=${messageID.take(8)}…")
             nostr.sendPrivateMessage(content, toPeerID, recipientNickname, messageID)
@@ -83,14 +89,21 @@ class MessageRouter private constructor(
             val q = outbox.getOrPut(toPeerID) { mutableListOf() }
             q.add(Triple(content, recipientNickname, messageID))
             Log.d(TAG, "Initiating noise handshake after queueing PM for ${toPeerID.take(8)}…")
-            mesh.initiateNoiseHandshake(toPeerID)
+            if (hasMesh) mesh.initiateNoiseHandshake(toPeerID) else aware?.initiateNoiseHandshake(toPeerID)
         }
     }
 
     fun sendReadReceipt(receipt: ReadReceipt, toPeerID: String) {
-        if ((mesh.getPeerInfo(toPeerID)?.isConnected == true) && mesh.hasEstablishedSession(toPeerID)) {
+        val aware = try { com.bitchat.android.wifiaware.WifiAwareController.getService() } catch (_: Exception) { null }
+        val viaMesh = (mesh.getPeerInfo(toPeerID)?.isConnected == true) && mesh.hasEstablishedSession(toPeerID)
+        val viaAware = try { aware?.getPeerInfo(toPeerID)?.isConnected == true && aware.hasEstablishedSession(toPeerID) } catch (_: Exception) { false }
+        if (viaMesh) {
             Log.d(TAG, "Routing READ via mesh to ${toPeerID.take(8)}… id=${receipt.originalMessageID.take(8)}…")
             mesh.sendReadReceipt(receipt.originalMessageID, toPeerID, mesh.getPeerNicknames()[toPeerID] ?: mesh.myPeerID)
+        } else if (viaAware) {
+            Log.d(TAG, "Routing READ via Wi‑Fi Aware to ${toPeerID.take(8)}… id=${receipt.originalMessageID.take(8)}…")
+            val me = try { aware?.myPeerID } catch (_: Exception) { null }
+            aware?.sendReadReceipt(receipt.originalMessageID, toPeerID, me ?: "")
         } else {
             Log.d(TAG, "Routing READ via Nostr to ${toPeerID.take(8)}… id=${receipt.originalMessageID.take(8)}…")
             nostr.sendReadReceipt(receipt, toPeerID)

app/src/main/java/com/bitchat/android/ui/ChatViewModel.kt

@@ -406,8 +406,9 @@ class ChatViewModel(
                         state.getNicknameValue()
                     )
                 } else {
-                    // Default: route via mesh
+                    // Default: route via mesh + Wi‑Fi Aware
                     meshService.sendMessage(messageContent, mentions, channel)
+                    try { com.bitchat.android.wifiaware.WifiAwareController.getService()?.sendMessage(messageContent, mentions, channel) } catch (_: Exception) {}
                 }
             })
             return
@@ -477,19 +478,23 @@ class ChatViewModel(
                             state.getNicknameValue(),
                             meshService.myPeerID,
                             onEncryptedPayload = { encryptedData ->
-                                // This would need proper mesh service integration
+                                // Send encrypted payload announcement over both transports for reachability
                                 meshService.sendMessage(content, mentions, currentChannelValue)
+                                try { com.bitchat.android.wifiaware.WifiAwareController.getService()?.sendMessage(content, mentions, currentChannelValue) } catch (_: Exception) {}
                             },
                             onFallback = {
                                 meshService.sendMessage(content, mentions, currentChannelValue)
+                                try { com.bitchat.android.wifiaware.WifiAwareController.getService()?.sendMessage(content, mentions, currentChannelValue) } catch (_: Exception) {}
                             }
                         )
                     } else {
                         meshService.sendMessage(content, mentions, currentChannelValue)
+                        try { com.bitchat.android.wifiaware.WifiAwareController.getService()?.sendMessage(content, mentions, currentChannelValue) } catch (_: Exception) {}
                     }
                 } else {
                     messageManager.addMessage(message)
                     meshService.sendMessage(content, mentions, null)
+                    try { com.bitchat.android.wifiaware.WifiAwareController.getService()?.sendMessage(content, mentions, null) } catch (_: Exception) {}
                 }
             }
         }
@@ -612,16 +617,23 @@ class ChatViewModel(
         val fingerprints = privateChatManager.getAllPeerFingerprints()
         state.setPeerFingerprints(fingerprints)
 
-        val nicknames = meshService.getPeerNicknames()
-        state.setPeerNicknames(nicknames)
+        // Merge nicknames from BLE and Wi‑Fi Aware to display names for all peers
+        val bleNick = meshService.getPeerNicknames()
+        val awareNick = try { com.bitchat.android.wifiaware.WifiAwareController.getService()?.getPeerNicknames() } catch (_: Exception) { null }
+        val mergedNick = if (awareNick != null) bleNick + awareNick.filterKeys { it !in bleNick || bleNick[it].isNullOrBlank() } else bleNick
+        state.setPeerNicknames(mergedNick)
 
         val rssiValues = meshService.getPeerRSSI()
-        state.setPeerRSSI(rssiValues)
+        val awareRssi = try { com.bitchat.android.wifiaware.WifiAwareController.getService()?.getPeerRSSI() } catch (_: Exception) { null }
+        val mergedRssi = if (awareRssi != null) rssiValues + awareRssi.filterKeys { it !in rssiValues } else rssiValues
+        state.setPeerRSSI(mergedRssi)
 
         // Update directness per peer (driven by PeerManager state)
         try {
             val directMap = state.getConnectedPeersValue().associateWith { pid ->
-                meshService.getPeerInfo(pid)?.isDirectConnection == true
+                val ble = meshService.getPeerInfo(pid)?.isDirectConnection == true
+                val aware = try { com.bitchat.android.wifiaware.WifiAwareController.getService()?.getPeerInfo(pid)?.isDirectConnection == true } catch (_: Exception) { false }
+                ble || aware
             }
             state.setPeerDirect(directMap)
         } catch (_: Exception) { }

app/src/main/java/com/bitchat/android/ui/MediaSendingManager.kt

@@ -210,6 +210,7 @@ class MediaSendingManager(
 
         Log.d(TAG, "📤 Calling meshService.sendFilePrivate to $toPeerID")
         meshService.sendFilePrivate(toPeerID, filePacket)
+        try { com.bitchat.android.wifiaware.WifiAwareController.getService()?.sendFilePrivate(toPeerID, filePacket) } catch (_: Exception) {}
         Log.d(TAG, "✅ File send completed successfully")
     }
 
@@ -264,6 +265,7 @@ class MediaSendingManager(
 
         Log.d(TAG, "📤 Calling meshService.sendFileBroadcast")
         meshService.sendFileBroadcast(filePacket)
+        try { com.bitchat.android.wifiaware.WifiAwareController.getService()?.sendFileBroadcast(filePacket) } catch (_: Exception) {}
         Log.d(TAG, "✅ File broadcast completed successfully")
     }
 

app/src/main/java/com/bitchat/android/ui/MeshDelegateHandler.kt

@@ -85,7 +85,10 @@ class MeshDelegateHandler(
 
     override fun didUpdatePeerList(peers: List<String>) {
         coroutineScope.launch {
-            state.setConnectedPeers(peers)
+            // Merge peers from multiple transports to avoid flapping
+            val current = state.getConnectedPeersValue().toMutableSet()
+            current.addAll(peers)
+            state.setConnectedPeers(current.toList())
             state.setIsConnected(peers.isNotEmpty())
             notificationManager.showActiveUserNotification(peers)
             // Flush router outbox for any peers that just connected (and their noiseHex aliases)