export transactions to csv

src/main/java/com/sparrowwallet/sparrow/control/EntryCell.java

@@ -25,8 +25,8 @@ import java.text.SimpleDateFormat;
 import java.util.*;
 import java.util.stream.Collectors;
 
-class EntryCell extends TreeTableCell<Entry, Entry> {
-    private static final DateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd HH:mm");
+public class EntryCell extends TreeTableCell<Entry, Entry> {
+    public static final DateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd HH:mm");
 
     public EntryCell() {
         super();

src/main/java/com/sparrowwallet/sparrow/glyphfont/FontAwesome5.java

@@ -29,6 +29,7 @@ public class FontAwesome5 extends GlyphFont {
         EXTERNAL_LINK_ALT('\uf35d'),
         ELLIPSIS_H('\uf141'),
         EYE('\uf06e'),
+        FILE_CSV('\uf6dd'),
         HAND_HOLDING('\uf4bd'),
         HAND_HOLDING_MEDICAL('\ue05c'),
         HISTORY('\uf1da'),

src/main/java/com/sparrowwallet/sparrow/wallet/TransactionsController.java

@@ -1,6 +1,9 @@
 package com.sparrowwallet.sparrow.wallet;
 
+import com.csvreader.CsvWriter;
 import com.google.common.eventbus.Subscribe;
+import com.sparrowwallet.drongo.BitcoinUnit;
+import com.sparrowwallet.drongo.protocol.Transaction;
 import com.sparrowwallet.sparrow.AppServices;
 import com.sparrowwallet.sparrow.CurrencyRate;
 import com.sparrowwallet.sparrow.EventManager;
@@ -8,14 +11,26 @@ import com.sparrowwallet.sparrow.control.*;
 import com.sparrowwallet.sparrow.event.*;
 import com.sparrowwallet.sparrow.net.ExchangeSource;
 import javafx.collections.ListChangeListener;
+import javafx.event.ActionEvent;
 import javafx.fxml.FXML;
 import javafx.fxml.Initializable;
+import javafx.scene.control.Button;
 import javafx.scene.control.TreeItem;
+import javafx.stage.FileChooser;
+import javafx.stage.Stage;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
 import java.net.URL;
+import java.nio.charset.StandardCharsets;
+import java.util.Locale;
 import java.util.ResourceBundle;
 
 public class TransactionsController extends WalletFormController implements Initializable {
+    private static final Logger log = LoggerFactory.getLogger(TransactionsController.class);
 
     @FXML
     private CoinLabel balance;
@@ -38,6 +53,9 @@ public class TransactionsController extends WalletFormController implements Init
     @FXML
     private BalanceChart balanceChart;
 
+    @FXML
+    private Button exportCsv;
+
     @Override
     public void initialize(URL location, ResourceBundle resources) {
         EventManager.get().register(this);
@@ -81,6 +99,41 @@ public class TransactionsController extends WalletFormController implements Init
         transactionCount.setText(walletTransactionsEntry.getChildren() != null ? Integer.toString(walletTransactionsEntry.getChildren().size()) : "0");
     }
 
+    public void exportCSV(ActionEvent event) {
+        WalletTransactionsEntry walletTransactionsEntry = getWalletForm().getWalletTransactionsEntry();
+
+        Stage window = new Stage();
+        FileChooser fileChooser = new FileChooser();
+        fileChooser.setTitle("Export Transactions as CSV");
+        fileChooser.setInitialFileName(getWalletForm().getWallet().getName() + ".csv");
+
+        File file = fileChooser.showSaveDialog(window);
+        if(file != null) {
+            try(FileOutputStream outputStream = new FileOutputStream(file)) {
+                CsvWriter writer = new CsvWriter(outputStream, ',', StandardCharsets.UTF_8);
+                writer.writeRecord(new String[] {"Date", "Label", "Value", "Balance"});
+                for(Entry entry : walletTransactionsEntry.getChildren()) {
+                    TransactionEntry txEntry = (TransactionEntry)entry;
+                    writer.write(EntryCell.DATE_FORMAT.format(txEntry.getBlockTransaction().getDate()));
+                    writer.write(txEntry.getLabel());
+                    writer.write(getCoinValue(txEntry.getValue()));
+                    writer.write(getCoinValue(txEntry.getBalance()));
+                    writer.endRecord();
+                }
+                writer.close();
+            } catch(IOException e) {
+                log.error("Error exporting transactions as CSV", e);
+                AppServices.showErrorDialog("Error exporting transactions as CSV", e.getMessage());
+            }
+        }
+    }
+
+    private String getCoinValue(Long value) {
+        return BitcoinUnit.BTC.equals(transactionsTable.getBitcoinUnit()) ?
+                CoinLabel.getBTCFormat().format(value.doubleValue() / Transaction.SATOSHIS_PER_BITCOIN) :
+                String.format(Locale.ENGLISH, "%d", value);
+    }
+
     @Subscribe
     public void walletNodesChanged(WalletNodesChangedEvent event) {
         if(event.getWallet().equals(walletForm.getWallet())) {

src/main/java/module-info.java

@@ -27,4 +27,5 @@ open module com.sparrowwallet.sparrow {
     requires slf4j.api;
     requires bwt.jni;
     requires jtorctl;
+    requires javacsv;
 }