From 7860aa5b870d89eff4f26e95bd8207340d5ea44f Mon Sep 17 00:00:00 2001
From: Stephen Birarda <commit@birarda.com>
Date: Thu, 31 Jul 2014 11:41:49 -0700
Subject: [PATCH] add some error messages to PaymentManager

---
 interface/src/PaymentManager.cpp | 50 +++++++++++++++++++++-----------
 1 file changed, 33 insertions(+), 17 deletions(-)

diff --git a/interface/src/PaymentManager.cpp b/interface/src/PaymentManager.cpp
index 84f5e96fc9..a0c05f34b3 100644
--- a/interface/src/PaymentManager.cpp
+++ b/interface/src/PaymentManager.cpp
@@ -13,6 +13,7 @@
 #include <QtCore/QDebug>
 #include <QtCore/QUuid>
 
+#include <Menu.h>
 #include <NodeList.h>
 #include <PacketHeaders.h>
 
@@ -27,22 +28,37 @@ PaymentManager& PaymentManager::getInstance() {
 
 void PaymentManager::sendSignedPayment(qint64 satoshiAmount, const QUuid& nodeUUID, const QUuid& destinationWalletUUID) {
     
-    // setup a signed wallet transaction
-    const qint64 DEFAULT_TRANSACTION_EXPIRY_SECONDS = 60;
-    qint64 currentTimestamp = QDateTime::currentDateTimeUtc().toTime_t();
-    SignedWalletTransaction newTransaction(destinationWalletUUID, satoshiAmount,
-                                           currentTimestamp, DEFAULT_TRANSACTION_EXPIRY_SECONDS);
+    QByteArray walletPrivateKeyByteArray = Menu::getInstance()->getWalletPrivateKey();
     
-    // send the signed transaction to the redeeming node
-    QByteArray transactionByteArray = byteArrayWithPopulatedHeader(PacketTypeSignedTransactionPayment);
-    
-    // append the binary message and the signed message digest
-    transactionByteArray.append(newTransaction.binaryMessage());
-    transactionByteArray.append(newTransaction.signedMessageDigest());
-    
-    qDebug() << "Paying" << satoshiAmount << "satoshis to" << destinationWalletUUID << "via" << nodeUUID;
-    
-    // use the NodeList to send that to the right node
-    NodeList* nodeList = NodeList::getInstance();
-    nodeList->writeDatagram(transactionByteArray, nodeList->nodeWithUUID(nodeUUID));
+    if (!walletPrivateKeyByteArray.isEmpty()) {
+        // setup a signed wallet transaction
+        const qint64 DEFAULT_TRANSACTION_EXPIRY_SECONDS = 60;
+        qint64 currentTimestamp = QDateTime::currentDateTimeUtc().toTime_t();
+        SignedWalletTransaction newTransaction(destinationWalletUUID, satoshiAmount,
+                                               currentTimestamp, DEFAULT_TRANSACTION_EXPIRY_SECONDS);
+        
+        // send the signed transaction to the redeeming node
+        QByteArray transactionByteArray = byteArrayWithPopulatedHeader(PacketTypeSignedTransactionPayment);
+        
+        // append the binary message and the signed message digest
+        transactionByteArray.append(newTransaction.binaryMessage());
+        QByteArray signedMessageDigest = newTransaction.signedMessageDigest();
+        
+        if (!signedMessageDigest.isEmpty()) {
+            transactionByteArray.append(signedMessageDigest);
+            
+            qDebug() << "Paying" << satoshiAmount << "satoshis to" << destinationWalletUUID << "via" << nodeUUID;
+            
+            // use the NodeList to send that to the right node
+            NodeList* nodeList = NodeList::getInstance();
+            nodeList->writeDatagram(transactionByteArray, nodeList->nodeWithUUID(nodeUUID));
+        } else {
+            qDebug() << "Payment of" << satoshiAmount << "satoshis to" << destinationWalletUUID << "via" << nodeUUID <<
+                "cannot be sent because there was an error signing the transaction.";
+        }
+        
+    } else {
+        qDebug() << "Payment of" << satoshiAmount << "satoshis to" << destinationWalletUUID << "via" << nodeUUID <<
+            "cannot be sent because there is no stored wallet private key.";
+    }
 }
\ No newline at end of file