worky

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

@@ -34,6 +34,9 @@ import com.bitchat.android.model.BitchatMessage
 import com.bitchat.android.model.DeliveryStatus
 import com.bitchat.android.mesh.BluetoothMeshService
 import com.bitchat.android.parsing.ParsedCashuToken
+import com.bitchat.android.ui.payment.PaymentStatusIndicator
+import com.bitchat.android.ui.payment.PaymentStatus
+import com.bitchat.android.wallet.viewmodel.WalletViewModel
 import java.text.SimpleDateFormat
 import java.util.*
 
@@ -51,9 +54,17 @@ import java.util.*
 @Composable
 fun ChatScreen(
     viewModel: ChatViewModel,
+    walletViewModel: WalletViewModel? = null,
     onWalletClick: () -> Unit = {},
     onWalletClickWithToken: ((com.bitchat.android.parsing.ParsedCashuToken) -> Unit)? = null
 ) {
+    // Initialize payment manager when wallet ViewModel is available
+    LaunchedEffect(walletViewModel) {
+        walletViewModel?.let { wallet ->
+            viewModel.initializePaymentManager(wallet)
+        }
+    }
+    
     val colorScheme = MaterialTheme.colorScheme
     val messages by viewModel.messages.observeAsState(emptyList())
     val connectedPeers by viewModel.connectedPeers.observeAsState(emptyList())
@@ -70,6 +81,9 @@ fun ChatScreen(
     val commandSuggestions by viewModel.commandSuggestions.observeAsState(emptyList())
     val showAppInfo by viewModel.showAppInfo.observeAsState(false)
     
+    // Observe payment status
+    val paymentStatus by viewModel.getPaymentStatus().collectAsState()
+    
     var messageText by remember { mutableStateOf("") }
     var showPasswordPrompt by remember { mutableStateOf(false) }
     var showPasswordDialog by remember { mutableStateOf(false) }
@@ -139,7 +153,9 @@ fun ChatScreen(
                 selectedPrivatePeer = selectedPrivatePeer,
                 currentChannel = currentChannel,
                 nickname = nickname,
-                colorScheme = colorScheme
+                colorScheme = colorScheme,
+                paymentStatus = paymentStatus,
+                onClearPaymentStatus = { viewModel.clearPaymentStatus() }
             )
         }
         
@@ -214,7 +230,9 @@ private fun ChatInputSection(
     selectedPrivatePeer: String?,
     currentChannel: String?,
     nickname: String,
-    colorScheme: ColorScheme
+    colorScheme: ColorScheme,
+    paymentStatus: PaymentStatus?,
+    onClearPaymentStatus: () -> Unit
 ) {
     Surface(
         modifier = Modifier.fillMaxWidth(),
@@ -235,6 +253,13 @@ private fun ChatInputSection(
                 Divider(color = colorScheme.outline.copy(alpha = 0.2f))
             }
             
+            // Payment status indicator
+            PaymentStatusIndicator(
+                status = paymentStatus,
+                onDismiss = onClearPaymentStatus,
+                modifier = Modifier.fillMaxWidth()
+            )
+            
             MessageInput(
                 value = messageText,
                 onValueChange = onMessageTextChange,

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

@@ -6,19 +6,25 @@ import android.util.Log
 import androidx.lifecycle.AndroidViewModel
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.viewModelScope
-import com.bitchat.android.mesh.BluetoothMeshDelegate
 import com.bitchat.android.mesh.BluetoothMeshService
+import com.bitchat.android.mesh.BluetoothMeshDelegate
 import com.bitchat.android.model.BitchatMessage
 import com.bitchat.android.model.DeliveryAck
 import com.bitchat.android.model.ReadReceipt
+import com.bitchat.android.model.RoutedPacket
+import com.bitchat.android.ui.payment.PaymentManager
+import com.bitchat.android.ui.payment.PaymentStatus
+import com.bitchat.android.wallet.viewmodel.WalletViewModel
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.delay
 import java.util.*
 import kotlin.random.Random
 
 /**
- * Refactored ChatViewModel - Main coordinator for bitchat functionality
+ * ViewModel for managing the chat functionality
- * Delegates specific responsibilities to specialized managers while maintaining 100% iOS compatibility
+ * Refactored to use composition over inheritance for better code organization
  */
 class ChatViewModel(
     application: Application,
@@ -38,6 +44,14 @@ class ChatViewModel(
     private val commandProcessor = CommandProcessor(state, messageManager, channelManager, privateChatManager)
     private val notificationManager = NotificationManager(application.applicationContext)
     
+    // Payment manager (lazily initialized with wallet ViewModel)
+    private var paymentManager: PaymentManager? = null
+    
+    // Initialize payment manager with wallet ViewModel
+    fun initializePaymentManager(walletViewModel: WalletViewModel) {
+        paymentManager = PaymentManager(viewModelScope, walletViewModel)
+    }
+    
     // Delegate handler for mesh callbacks
     private val meshDelegateHandler = MeshDelegateHandler(
         state = state,
@@ -176,9 +190,17 @@ class ChatViewModel(
 
         // Check for commands
         if (content.startsWith("/")) {
-            commandProcessor.processCommand(content, meshService, meshService.myPeerID) { messageContent, mentions, channel ->
+            commandProcessor.processCommand(
+                command = content, 
+                meshService = meshService, 
+                myPeerID = meshService.myPeerID,
+                onSendMessage = { messageContent, mentions, channel ->
                     meshService.sendMessage(messageContent, mentions, channel)
+                },
+                onPaymentRequest = { amount ->
+                    handlePaymentRequest(amount)
                 }
+            )
             return
         }
 
@@ -248,6 +270,72 @@ class ChatViewModel(
         }
     }
     
+    // MARK: - Payment Management 
+    
+    /**
+     * Handle payment request from /pay command
+     */
+    private fun handlePaymentRequest(amount: Long) {
+        paymentManager?.createPayment(amount) { token ->
+            // Send the created token to the current chat
+            sendCashuTokenToChat(token)
+        }
+    }
+    
+    /**
+     * Send a Cashu token to the current chat
+     */
+    private fun sendCashuTokenToChat(token: String) {
+        val selectedPeer = state.getSelectedPrivateChatPeerValue()
+        val currentChannelValue = state.getCurrentChannelValue()
+        
+        if (selectedPeer != null) {
+            // Send token as private message
+            val recipientNickname = meshService.getPeerNicknames()[selectedPeer]
+            privateChatManager.sendPrivateMessage(
+                token, 
+                selectedPeer, 
+                recipientNickname,
+                state.getNicknameValue(),
+                meshService.myPeerID
+            ) { messageContent, peerID, recipientNicknameParam, messageId ->
+                meshService.sendPrivateMessage(messageContent, peerID, recipientNicknameParam, messageId)
+            }
+        } else {
+            // Send token as public/channel message
+            val message = BitchatMessage(
+                sender = state.getNicknameValue() ?: meshService.myPeerID,
+                content = token,
+                timestamp = Date(),
+                isRelay = false,
+                senderPeerID = meshService.myPeerID,
+                channel = currentChannelValue
+            )
+            
+            if (currentChannelValue != null) {
+                channelManager.addChannelMessage(currentChannelValue, message, meshService.myPeerID)
+                meshService.sendMessage(token, emptyList(), currentChannelValue)
+            } else {
+                messageManager.addMessage(message)
+                meshService.sendMessage(token, emptyList(), null)
+            }
+        }
+    }
+    
+    /**
+     * Get payment status for UI
+     */
+    fun getPaymentStatus(): StateFlow<PaymentStatus?> {
+        return paymentManager?.paymentStatus ?: kotlinx.coroutines.flow.MutableStateFlow(null).asStateFlow()
+    }
+    
+    /**
+     * Clear payment status
+     */
+    fun clearPaymentStatus() {
+        paymentManager?.clearStatus()
+    }
+    
     // MARK: - Utility Functions
     
     fun getPeerIDForNickname(nickname: String): String? {

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

@@ -21,6 +21,7 @@ class CommandProcessor(
         CommandSuggestion("/hug", emptyList(), "<nickname>", "send someone a warm hug"),
         CommandSuggestion("/j", listOf("/join"), "<channel>", "join or create a channel"),
         CommandSuggestion("/m", listOf("/msg"), "<nickname> [message]", "send private message"),
+        CommandSuggestion("/pay", emptyList(), "<amount>", "send Cashu payment"),
         CommandSuggestion("/slap", emptyList(), "<nickname>", "slap someone with a trout"),
         CommandSuggestion("/unblock", emptyList(), "<nickname>", "unblock a peer"),
         CommandSuggestion("/w", emptyList(), null, "see who's online")
@@ -28,7 +29,13 @@ class CommandProcessor(
     
     // MARK: - Command Processing
     
-    fun processCommand(command: String, meshService: Any, myPeerID: String, onSendMessage: (String, List<String>, String?) -> Unit): Boolean {
+    fun processCommand(
+        command: String, 
+        meshService: Any, 
+        myPeerID: String, 
+        onSendMessage: (String, List<String>, String?) -> Unit,
+        onPaymentRequest: ((Long) -> Unit)? = null
+    ): Boolean {
         if (!command.startsWith("/")) return false
         
         val parts = command.split(" ")
@@ -45,6 +52,7 @@ class CommandProcessor(
             "/hug" -> handleActionCommand(parts, "gives", "a warm hug 🫂", meshService, myPeerID, onSendMessage)
             "/slap" -> handleActionCommand(parts, "slaps", "around a bit with a large trout 🐟", meshService, myPeerID, onSendMessage)
             "/channels" -> handleChannelsCommand()
+            "/pay" -> handlePayCommand(parts, onPaymentRequest)
             else -> handleUnknownCommand(cmd)
         }
         
@@ -316,6 +324,47 @@ class CommandProcessor(
         messageManager.addMessage(systemMessage)
     }
     
+    private fun handlePayCommand(parts: List<String>, onPaymentRequest: ((Long) -> Unit)?) {
+        if (parts.size < 2) {
+            val systemMessage = BitchatMessage(
+                sender = "system",
+                content = "usage: /pay <amount> - send Cashu payment in sats",
+                timestamp = Date(),
+                isRelay = false
+            )
+            messageManager.addMessage(systemMessage)
+            return
+        }
+        
+        val amountStr = parts[1]
+        val amount = amountStr.toLongOrNull()
+        
+        if (amount == null || amount <= 0) {
+            val systemMessage = BitchatMessage(
+                sender = "system", 
+                content = "invalid amount: '$amountStr'. please enter a positive number of sats.",
+                timestamp = Date(),
+                isRelay = false
+            )
+            messageManager.addMessage(systemMessage)
+            return
+        }
+        
+        if (amount > 1_000_000) {
+            val systemMessage = BitchatMessage(
+                sender = "system",
+                content = "amount too large: $amount sats. maximum is 1,000,000 sats.",
+                timestamp = Date(),
+                isRelay = false
+            )
+            messageManager.addMessage(systemMessage)
+            return
+        }
+        
+        // Trigger payment creation
+        onPaymentRequest?.invoke(amount)
+    }
+    
     private fun handleUnknownCommand(cmd: String) {
         val systemMessage = BitchatMessage(
             sender = "system",

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

@@ -58,6 +58,7 @@ fun MainAppScreen(
         // Chat is always the base view
         ChatScreen(
             viewModel = chatViewModel,
+            walletViewModel = walletViewModel,
             onWalletClick = { showWallet = true },
             onWalletClickWithToken = { parsedToken ->
                 // Open wallet and show receive dialog with the parsed token immediately

app/src/main/java/com/bitchat/android/ui/payment/PaymentManager.kt

@@ -0,0 +1,93 @@
+package com.bitchat.android.ui.payment
+
+import android.util.Log
+import androidx.lifecycle.viewModelScope
+import com.bitchat.android.wallet.viewmodel.WalletViewModel
+import com.bitchat.android.wallet.data.TransactionType
+import com.bitchat.android.wallet.data.TransactionStatus
+import com.bitchat.android.wallet.data.WalletTransaction
+import com.bitchat.android.model.BitchatMessage
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.launch
+import java.math.BigDecimal
+import java.util.*
+
+/**
+ * Manages payment creation and status for the /pay command
+ * Coordinates between ChatViewModel, WalletViewModel, and UI
+ */
+class PaymentManager(
+    private val coroutineScope: CoroutineScope,
+    private val walletViewModel: WalletViewModel
+) {
+    
+    companion object {
+        private const val TAG = "PaymentManager"
+    }
+    
+    // Payment status state
+    private val _paymentStatus = MutableStateFlow<PaymentStatus?>(null)
+    val paymentStatus: StateFlow<PaymentStatus?> = _paymentStatus.asStateFlow()
+    
+    /**
+     * Create a Cashu token payment for the specified amount
+     */
+    fun createPayment(
+        amount: Long,
+        onTokenCreated: (String) -> Unit
+    ) {
+        Log.d(TAG, "Creating payment for $amount sats")
+        
+        // Set creating status
+        _paymentStatus.value = PaymentStatus.Creating(amount)
+        
+        coroutineScope.launch {
+            try {
+                // Use WalletViewModel's createCashuToken method
+                walletViewModel.createCashuTokenForPayment(
+                    amount = amount,
+                    memo = "Payment via /pay command",
+                    onSuccess = { token ->
+                        Log.d(TAG, "Payment token created successfully: ${token.take(20)}...")
+                        
+                        // Set success status
+                        _paymentStatus.value = PaymentStatus.Success(amount, token)
+                        
+                        // Notify caller with the token
+                        onTokenCreated(token)
+                    },
+                    onError = { error ->
+                        Log.e(TAG, "Payment creation failed: $error")
+                        
+                        // Set error status
+                        _paymentStatus.value = PaymentStatus.Error(amount, error)
+                    }
+                )
+                
+            } catch (e: Exception) {
+                Log.e(TAG, "Exception creating payment", e)
+                _paymentStatus.value = PaymentStatus.Error(
+                    amount, 
+                    e.message ?: "Unknown error occurred"
+                )
+            }
+        }
+    }
+    
+    /**
+     * Clear the current payment status
+     */
+    fun clearStatus() {
+        _paymentStatus.value = null
+    }
+    
+    /**
+     * Check if a payment is currently being created
+     */
+    fun isCreatingPayment(): Boolean {
+        return _paymentStatus.value is PaymentStatus.Creating
+    }
+} 

app/src/main/java/com/bitchat/android/ui/payment/PaymentStatusIndicator.kt

@@ -0,0 +1,298 @@
+package com.bitchat.android.ui.payment
+
+import androidx.compose.animation.*
+import androidx.compose.animation.core.*
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.*
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.graphicsLayer
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import kotlinx.coroutines.delay
+
+/**
+ * Payment status for Cashu token creation
+ */
+sealed class PaymentStatus {
+    data class Creating(val amount: Long) : PaymentStatus()
+    data class Success(val amount: Long, val token: String) : PaymentStatus()
+    data class Error(val amount: Long, val message: String) : PaymentStatus()
+}
+
+/**
+ * Sleek payment status indicator that slides up above the text input
+ * Shows creation progress, success, and error states
+ */
+@Composable
+fun PaymentStatusIndicator(
+    status: PaymentStatus?,
+    onDismiss: () -> Unit,
+    modifier: Modifier = Modifier
+) {
+    val isVisible = status != null
+    
+    // Auto-dismiss success/error states after delay
+    LaunchedEffect(status) {
+        if (status is PaymentStatus.Success || status is PaymentStatus.Error) {
+            delay(3000) // Show for 3 seconds
+            onDismiss()
+        }
+    }
+    
+    AnimatedVisibility(
+        visible = isVisible,
+        enter = slideInVertically(
+            initialOffsetY = { it },
+            animationSpec = spring(
+                dampingRatio = 0.8f,
+                stiffness = Spring.StiffnessMedium
+            )
+        ) + fadeIn(
+            animationSpec = tween(300, easing = EaseOutCubic)
+        ),
+        exit = slideOutVertically(
+            targetOffsetY = { it },
+            animationSpec = spring(
+                dampingRatio = 0.9f,
+                stiffness = Spring.StiffnessMedium
+            )
+        ) + fadeOut(
+            animationSpec = tween(200, easing = EaseInCubic)
+        ),
+        modifier = modifier
+    ) {
+        if (status != null) {
+            PaymentStatusCard(status = status)
+        }
+    }
+}
+
+@Composable
+private fun PaymentStatusCard(status: PaymentStatus) {
+    val colors = when (status) {
+        is PaymentStatus.Creating -> PaymentColors(
+            background = Color(0xFF1A1A1A),
+            border = Color(0xFF00C851),
+            icon = Color(0xFF00C851),
+            text = Color.White
+        )
+        is PaymentStatus.Success -> PaymentColors(
+            background = Color(0xFF00C851).copy(alpha = 0.15f),
+            border = Color(0xFF00C851),
+            icon = Color(0xFF00C851),
+            text = Color.White
+        )
+        is PaymentStatus.Error -> PaymentColors(
+            background = Color(0xFFFF4444).copy(alpha = 0.15f),
+            border = Color(0xFFFF4444),
+            icon = Color(0xFFFF4444),
+            text = Color.White
+        )
+    }
+    
+    Card(
+        modifier = Modifier
+            .fillMaxWidth()
+            .padding(horizontal = 12.dp),
+        shape = RoundedCornerShape(16.dp),
+        colors = CardDefaults.cardColors(
+            containerColor = colors.background
+        ),
+        border = androidx.compose.foundation.BorderStroke(2.dp, colors.border)
+    ) {
+        Row(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(16.dp),
+            verticalAlignment = Alignment.CenterVertically,
+            horizontalArrangement = Arrangement.spacedBy(12.dp)
+        ) {
+            // Status icon with animation
+            PaymentStatusIcon(
+                status = status,
+                color = colors.icon
+            )
+            
+            // Status content
+            Column(
+                modifier = Modifier.weight(1f)
+            ) {
+                PaymentStatusText(
+                    status = status,
+                    textColor = colors.text
+                )
+            }
+            
+            // Amount display
+            PaymentAmountDisplay(
+                amount = when (status) {
+                    is PaymentStatus.Creating -> status.amount
+                    is PaymentStatus.Success -> status.amount
+                    is PaymentStatus.Error -> status.amount
+                },
+                color = colors.text
+            )
+        }
+    }
+}
+
+@Composable
+private fun PaymentStatusIcon(
+    status: PaymentStatus,
+    color: Color
+) {
+    when (status) {
+        is PaymentStatus.Creating -> {
+            // Animated spinner
+            val infiniteTransition = rememberInfiniteTransition(label = "payment_creating")
+            val rotation by infiniteTransition.animateFloat(
+                initialValue = 0f,
+                targetValue = 360f,
+                animationSpec = infiniteRepeatable(
+                    animation = tween(1000, easing = LinearEasing),
+                    repeatMode = RepeatMode.Restart
+                ),
+                label = "spinner_rotation"
+            )
+            
+            Icon(
+                imageVector = Icons.Filled.Refresh,
+                contentDescription = "Creating payment",
+                tint = color,
+                modifier = Modifier
+                    .size(24.dp)
+                    .graphicsLayer { rotationZ = rotation }
+            )
+        }
+        is PaymentStatus.Success -> {
+            Icon(
+                imageVector = Icons.Filled.CheckCircle,
+                contentDescription = "Payment sent",
+                tint = color,
+                modifier = Modifier.size(24.dp)
+            )
+        }
+        is PaymentStatus.Error -> {
+            Icon(
+                imageVector = Icons.Filled.Error,
+                contentDescription = "Payment failed",
+                tint = color,
+                modifier = Modifier.size(24.dp)
+            )
+        }
+    }
+}
+
+@Composable
+private fun PaymentStatusText(
+    status: PaymentStatus,
+    textColor: Color
+) {
+    when (status) {
+        is PaymentStatus.Creating -> {
+            Text(
+                text = "Creating payment...",
+                color = textColor,
+                fontSize = 14.sp,
+                fontWeight = FontWeight.Medium,
+                fontFamily = FontFamily.Monospace
+            )
+            Text(
+                text = "Generating Cashu token",
+                color = textColor.copy(alpha = 0.7f),
+                fontSize = 12.sp,
+                fontFamily = FontFamily.Monospace
+            )
+        }
+        is PaymentStatus.Success -> {
+            Text(
+                text = "Payment sent!",
+                color = textColor,
+                fontSize = 14.sp,
+                fontWeight = FontWeight.Bold,
+                fontFamily = FontFamily.Monospace
+            )
+            Text(
+                text = "Cashu token delivered to chat",
+                color = textColor.copy(alpha = 0.8f),
+                fontSize = 12.sp,
+                fontFamily = FontFamily.Monospace
+            )
+        }
+        is PaymentStatus.Error -> {
+            Text(
+                text = "Payment failed",
+                color = textColor,
+                fontSize = 14.sp,
+                fontWeight = FontWeight.Bold,
+                fontFamily = FontFamily.Monospace
+            )
+            Text(
+                text = status.message,
+                color = textColor.copy(alpha = 0.8f),
+                fontSize = 12.sp,
+                fontFamily = FontFamily.Monospace
+            )
+        }
+    }
+}
+
+@Composable
+private fun PaymentAmountDisplay(
+    amount: Long,
+    color: Color
+) {
+    Column(
+        horizontalAlignment = Alignment.End
+    ) {
+        Row(
+            verticalAlignment = Alignment.CenterVertically,
+            horizontalArrangement = Arrangement.spacedBy(4.dp)
+        ) {
+            Text(
+                text = "⚡",
+                fontSize = 16.sp,
+                color = color
+            )
+            Text(
+                text = formatSats(amount),
+                color = color,
+                fontSize = 16.sp,
+                fontWeight = FontWeight.Bold,
+                fontFamily = FontFamily.Monospace
+            )
+        }
+    }
+}
+
+/**
+ * Colors for different payment states
+ */
+private data class PaymentColors(
+    val background: Color,
+    val border: Color,
+    val icon: Color,
+    val text: Color
+)
+
+/**
+ * Format sats amount for display
+ */
+private fun formatSats(sats: Long): String {
+    return when {
+        sats >= 100_000_000 -> String.format("%.2f BTC", sats / 100_000_000.0)
+        sats >= 1000 -> String.format("%,d sats", sats)
+        else -> "$sats sats"
+    }
+} 

app/src/main/java/com/bitchat/android/wallet/service/CashuService.kt

@@ -284,7 +284,9 @@ class CashuService {
                 
                 Log.d(TAG, "Token validation successful, amount: $amount")
 
-                wallet!!.receive(token)
+                val ffiAmount = wallet!!.receive(token)
+
+                Log.d(TAG, "FFI amount: ${ffiAmount}")
 
                 Result.success(amount)
                 

app/src/main/java/com/bitchat/android/wallet/viewmodel/WalletViewModel.kt

@@ -526,6 +526,54 @@ class WalletViewModel(application: Application) : AndroidViewModel(application)
         }
     }
     
+    /**
+     * Create a Cashu token for payments (with callbacks for /pay command)
+     */
+    fun createCashuTokenForPayment(
+        amount: Long, 
+        memo: String? = null,
+        onSuccess: (String) -> Unit,
+        onError: (String) -> Unit
+    ) {
+        viewModelScope.launch {
+            try {
+                cashuService.createToken(amount, memo).onSuccess { token ->
+                    
+                    // Add transaction
+                    val transaction = WalletTransaction(
+                        id = UUID.randomUUID().toString(),
+                        type = TransactionType.CASHU_SEND,
+                        amount = BigDecimal(amount),
+                        unit = "sat",
+                        status = TransactionStatus.CONFIRMED,
+                        timestamp = Date(),
+                        description = memo ?: "Cashu token sent",
+                        token = token
+                    )
+                    
+                    repository.saveTransaction(transaction).onSuccess {
+                        loadTransactions()
+                        refreshBalance()
+                        
+                        // Success callback with token
+                        onSuccess(token)
+                        
+                    }.onFailure { error ->
+                        Log.e(TAG, "Failed to save transaction", error)
+                        onError("Failed to save transaction: ${error.message}")
+                    }
+                    
+                }.onFailure { error ->
+                    onError("Failed to create token: ${error.message}")
+                }
+                
+            } catch (e: Exception) {
+                Log.e(TAG, "Exception creating payment token", e)
+                onError(e.message ?: "Unknown error occurred")
+            }
+        }
+    }
+    
     /**
      * Decode a Cashu token to show information
      */