From 79c0f7769a682aa6ce365c33771b1d338fdf2f03 Mon Sep 17 00:00:00 2001
From: Craig Raw <craigraw@gmail.com>
Date: Mon, 28 Mar 2022 09:31:18 +0200
Subject: [PATCH] indicate when a server failure occurs loading a transaction
 from file

---
 .../event/TransactionFetchFailedEvent.java     | 13 +++++++++++++
 .../sparrow/transaction/HeadersController.java | 18 ++++++++++++++++++
 .../transaction/TransactionController.java     |  6 +++++-
 3 files changed, 36 insertions(+), 1 deletion(-)
 create mode 100644 src/main/java/com/sparrowwallet/sparrow/event/TransactionFetchFailedEvent.java

diff --git a/src/main/java/com/sparrowwallet/sparrow/event/TransactionFetchFailedEvent.java b/src/main/java/com/sparrowwallet/sparrow/event/TransactionFetchFailedEvent.java
new file mode 100644
index 00000000..8c614fdb
--- /dev/null
+++ b/src/main/java/com/sparrowwallet/sparrow/event/TransactionFetchFailedEvent.java
@@ -0,0 +1,13 @@
+package com.sparrowwallet.sparrow.event;
+
+import com.sparrowwallet.drongo.protocol.Transaction;
+
+public class TransactionFetchFailedEvent extends TransactionReferencesFailedEvent {
+    public TransactionFetchFailedEvent(Transaction transaction, Throwable exception) {
+        super(transaction, exception);
+    }
+
+    public TransactionFetchFailedEvent(Transaction transaction, Throwable exception, int pageStart, int pageEnd) {
+        super(transaction, exception, pageStart, pageEnd);
+    }
+}
diff --git a/src/main/java/com/sparrowwallet/sparrow/transaction/HeadersController.java b/src/main/java/com/sparrowwallet/sparrow/transaction/HeadersController.java
index e95a0329..b816f578 100644
--- a/src/main/java/com/sparrowwallet/sparrow/transaction/HeadersController.java
+++ b/src/main/java/com/sparrowwallet/sparrow/transaction/HeadersController.java
@@ -14,6 +14,7 @@ import com.sparrowwallet.sparrow.AppServices;
 import com.sparrowwallet.sparrow.EventManager;
 import com.sparrowwallet.sparrow.control.*;
 import com.sparrowwallet.sparrow.event.*;
+import com.sparrowwallet.sparrow.glyphfont.FontAwesome5;
 import com.sparrowwallet.sparrow.glyphfont.FontAwesome5Brands;
 import com.sparrowwallet.sparrow.io.Device;
 import com.sparrowwallet.sparrow.net.ElectrumServer;
@@ -1177,6 +1178,23 @@ public class HeadersController extends TransactionFormController implements Init
         }
     }
 
+    @Subscribe
+    public void transactionFetchFailed(TransactionFetchFailedEvent event) {
+        if(event.getTransaction().getTxId().equals(headersForm.getTransaction().getTxId())
+                && !blockchainForm.isVisible() && !signingWalletForm.isVisible() && !signaturesForm.isVisible()) {
+            blockchainForm.setVisible(true);
+            blockStatus.setText("Unknown transaction status, server failed to respond");
+            Glyph errorGlyph = new Glyph(FontAwesome5.FONT_NAME, FontAwesome5.Glyph.EXCLAMATION_CIRCLE);
+            errorGlyph.setFontSize(12);
+            blockStatus.setGraphic(errorGlyph);
+            blockStatus.setContentDisplay(ContentDisplay.LEFT);
+            errorGlyph.getStyleClass().add("failure");
+            blockHeightField.setVisible(false);
+            blockTimestampField.setVisible(false);
+            blockHashField.setVisible(false);
+        }
+    }
+
     @Subscribe
     public void bitcoinUnitChanged(BitcoinUnitChangedEvent event) {
         fee.refresh(event.getBitcoinUnit());
diff --git a/src/main/java/com/sparrowwallet/sparrow/transaction/TransactionController.java b/src/main/java/com/sparrowwallet/sparrow/transaction/TransactionController.java
index baa258da..823a3723 100644
--- a/src/main/java/com/sparrowwallet/sparrow/transaction/TransactionController.java
+++ b/src/main/java/com/sparrowwallet/sparrow/transaction/TransactionController.java
@@ -379,7 +379,11 @@ public class TransactionController implements Initializable {
             });
             transactionReferenceService.setOnFailed(failedEvent -> {
                 log.error("Error fetching transaction or input references", failedEvent.getSource().getException());
-                EventManager.get().post(new TransactionReferencesFailedEvent(getTransaction(), failedEvent.getSource().getException(), indexStart, maxIndex));
+                if(references.contains(getTransaction().getTxId())) {
+                    EventManager.get().post(new TransactionFetchFailedEvent(getTransaction(), failedEvent.getSource().getException(), indexStart, maxIndex));
+                } else {
+                    EventManager.get().post(new TransactionReferencesFailedEvent(getTransaction(), failedEvent.getSource().getException(), indexStart, maxIndex));
+                }
             });
             EventManager.get().post(new TransactionReferencesStartedEvent(getTransaction(), indexStart, maxIndex));
             transactionReferenceService.start();