add master fingerprint to passphrase entry dialog in terminal

src/main/java/com/sparrowwallet/sparrow/terminal/PassphraseDialog.java

@@ -0,0 +1,77 @@
+package com.sparrowwallet.sparrow.terminal;
+
+import com.googlecode.lanterna.TerminalSize;
+import com.googlecode.lanterna.gui2.*;
+import com.googlecode.lanterna.gui2.dialogs.DialogWindow;
+import com.sparrowwallet.drongo.Utils;
+import com.sparrowwallet.drongo.wallet.Keystore;
+import com.sparrowwallet.drongo.wallet.MnemonicException;
+
+import java.util.Collections;
+
+public class PassphraseDialog extends DialogWindow {
+    private final Label masterFingerprint;
+    private final TextBox passphrase;
+    private String result;
+
+    public PassphraseDialog(String walletName, Keystore keystore) {
+        super("Passphrase for " + walletName);
+
+        setHints(Collections.singleton(Window.Hint.CENTERED));
+
+        this.masterFingerprint = new Label("");
+        this.passphrase = new TextBox();
+        this.passphrase.setMask('*');
+
+        Panel buttonPanel = new Panel();
+        buttonPanel.setLayoutManager(new GridLayout(2).setHorizontalSpacing(1));
+        buttonPanel.addComponent(new Button(LocalizedString.OK.toString(), this::onOK).setLayoutData(GridLayout.createLayoutData(GridLayout.Alignment.CENTER, GridLayout.Alignment.CENTER, true, false)));
+        buttonPanel.addComponent(new Button(LocalizedString.Cancel.toString(), this::onCancel));
+
+        Panel mainPanel = new Panel();
+        mainPanel.setLayoutManager(new GridLayout(1).setLeftMarginSize(1).setRightMarginSize(1));
+        mainPanel.addComponent(new Label("Enter the BIP39 passphrase for keystore:\n" + keystore.getLabel()));
+        mainPanel.addComponent(new EmptySpace(TerminalSize.ONE));
+        passphrase.setLayoutData(GridLayout.createLayoutData(GridLayout.Alignment.FILL, GridLayout.Alignment.CENTER, true, false)).addTo(mainPanel);
+        mainPanel.addComponent(new EmptySpace(TerminalSize.ONE));
+        mainPanel.addComponent(masterFingerprint);
+        mainPanel.addComponent(new EmptySpace(TerminalSize.ONE));
+        buttonPanel.setLayoutData(GridLayout.createLayoutData(GridLayout.Alignment.END, GridLayout.Alignment.CENTER, false, false)).addTo(mainPanel);
+        setComponent(mainPanel);
+
+        passphrase.setTextChangeListener((newText, changedByUserInteraction) -> {
+            setMasterFingerprintLabel(keystore, newText);
+        });
+        setMasterFingerprintLabel(keystore, "");
+    }
+
+    private void onOK() {
+        result = passphrase.getText();
+        close();
+    }
+
+    private void onCancel() {
+        close();
+    }
+
+    @Override
+    public String showDialog(WindowBasedTextGUI textGUI) {
+        result = null;
+        super.showDialog(textGUI);
+        return result;
+    }
+
+    private void setMasterFingerprintLabel(Keystore keystore, String passphrase) {
+        masterFingerprint.setText("Master fingerprint: " + Utils.bytesToHex(getMasterFingerprint(keystore, passphrase)));
+    }
+
+    private byte[] getMasterFingerprint(Keystore keystore, String passphrase) {
+        try {
+            Keystore copyKeystore = keystore.copy();
+            copyKeystore.getSeed().setPassphrase(passphrase);
+            return copyKeystore.getExtendedMasterPrivateKey().getKey().getFingerprint();
+        } catch(MnemonicException e) {
+            throw new RuntimeException(e);
+        }
+    }
+}

src/main/java/com/sparrowwallet/sparrow/terminal/TerminalInteractionServices.java

@@ -2,7 +2,6 @@ package com.sparrowwallet.sparrow.terminal;
 
 import com.googlecode.lanterna.gui2.dialogs.MessageDialogBuilder;
 import com.googlecode.lanterna.gui2.dialogs.MessageDialogButton;
-import com.googlecode.lanterna.gui2.dialogs.TextInputDialogBuilder;
 import com.sparrowwallet.drongo.wallet.Keystore;
 import com.sparrowwallet.sparrow.InteractionServices;
 import javafx.application.Platform;
@@ -103,10 +102,8 @@ public class TerminalInteractionServices implements InteractionServices {
     }
 
     private Optional<String> showPassphraseDialog(String walletName, Keystore keystore) {
-        TextInputDialogBuilder builder = new TextInputDialogBuilder().setTitle("Passphrase for " + walletName);
+        PassphraseDialog passphraseDialog = new PassphraseDialog(walletName, keystore);
-        builder.setDescription("Enter the BIP39 passphrase for keystore:\n" + keystore.getLabel());
+        String passphrase = passphraseDialog.showDialog(SparrowTerminal.get().getGui());
-        builder.setPasswordInput(true);
-        String passphrase = builder.build().showDialog(SparrowTerminal.get().getGui());
         return passphrase == null ? Optional.empty() : Optional.of(passphrase);
     }
 }

src/main/java/com/sparrowwallet/sparrow/terminal/wallet/LoadWallet.java

@@ -121,6 +121,7 @@ public class LoadWallet implements Runnable {
             }
         } catch(Exception e) {
             log.error("Wallet Error", e);
+            SparrowTerminal.get().getGuiThread().invokeLater(() -> SparrowTerminal.get().getGui().removeWindow(loadingDialog));
             showErrorDialog("Wallet Error", e.getMessage());
         } finally {
             walletAndKey.clear();