Revolut account should accept only phone number

For issue #3728
	Till now we used to accept email or phone number
	Now we are accepting only phone number in input though
	for display we will provide backward compatibility.

	Added list of countries accepted from official revolut website
	https://www.revolut.com/en-US/help/getting-started/verifying-identity/what-countries-are-supported

	Based on the country selected, we will validate the given
	phone number input.

core/src/main/java/bisq/core/locale/CountryUtil.java

@@ -44,6 +44,18 @@ public static List<Country> getAllSepaEuroCountries() {
         return list;
     }
 
+    public static List<Country> getAllRevolutCountries() {
+        List<Country> list = new ArrayList<>();
+        String[] codes = {"AT", "BE", "BG", "HR", "CY", "CZ", "DK", "EE", "FI", "FR",
+                "DE", "GR", "HU", "IS", "IE", "IT", "LV", "LI", "LT", "LU", "MT", "NL",
+                "NO", "PL", "PT", "RO", "SK", "SI", "ES", "SE", "GB",
+                "AU", "CA", "SG", "CH", "US"};
+        populateCountryListByCodes(list, codes);
+        list.sort((a, b) -> a.name.compareTo(b.name));
+
+        return list;
+    }
+
     public static List<Country> getAllSepaInstantEuroCountries() {
         return getAllSepaEuroCountries();
     }

desktop/src/main/java/bisq/desktop/components/paymentmethods/RevolutForm.java

@@ -23,6 +23,8 @@
 import bisq.desktop.util.validation.RevolutValidator;
 
 import bisq.core.account.witness.AccountAgeWitnessService;
+import bisq.core.locale.Country;
+import bisq.core.locale.CountryUtil;
 import bisq.core.locale.CurrencyUtil;
 import bisq.core.locale.Res;
 import bisq.core.payment.PaymentAccount;
@@ -32,19 +34,29 @@
 import bisq.core.util.coin.CoinFormatter;
 import bisq.core.util.validation.InputValidator;
 
+import com.jfoenix.controls.JFXComboBox;
+
+import javafx.scene.control.ComboBox;
 import javafx.scene.control.TextField;
 import javafx.scene.layout.FlowPane;
 import javafx.scene.layout.GridPane;
+import javafx.scene.layout.HBox;
+
+import javafx.collections.FXCollections;
+
+import javafx.util.StringConverter;
 
 import static bisq.desktop.util.FormBuilder.addCompactTopLabelTextField;
 import static bisq.desktop.util.FormBuilder.addCompactTopLabelTextFieldWithCopyIcon;
 import static bisq.desktop.util.FormBuilder.addTopLabelFlowPane;
 import static bisq.desktop.util.FormBuilder.addTopLabelTextField;
+import static bisq.desktop.util.FormBuilder.addTopLabelWithVBox;
 
 public class RevolutForm extends PaymentMethodForm {
     private final RevolutAccount account;
     private RevolutValidator validator;
     private InputTextField accountIdInputTextField;
+    private Country selectedCountry;
 
     public static int addFormForBuyer(GridPane gridPane, int gridRow,
                                       PaymentAccountPayload paymentAccountPayload) {
@@ -74,6 +86,12 @@ public RevolutForm(PaymentAccount paymentAccount, AccountAgeWitnessService accou
     public void addFormForAddAccount() {
         gridRowFrom = gridRow + 1;
 
+        // country selection is added only to prevent anymore email id input and
+        // solely to validate the given phone number
+        ComboBox<Country> countryComboBox = addCountrySelection();
+        setCountryComboBoxAction(countryComboBox);
+        countryComboBox.setItems(FXCollections.observableArrayList(CountryUtil.getAllRevolutCountries()));
+
         accountIdInputTextField = FormBuilder.addInputTextField(gridPane, ++gridRow, Res.get("payment.revolut.phoneNr"));
         accountIdInputTextField.setValidator(validator);
         accountIdInputTextField.textProperty().addListener((ov, oldValue, newValue) -> {
@@ -84,6 +102,42 @@ public void addFormForAddAccount() {
         addCurrenciesGrid(true);
         addLimitations(false);
         addAccountNameTextFieldWithAutoFillToggleButton();
+
+        //set default country as selected
+        selectedCountry = CountryUtil.getDefaultCountry();
+        if (CountryUtil.getAllRevolutCountries().contains(selectedCountry)) {
+            countryComboBox.getSelectionModel().select(selectedCountry);
+        }
+    }
+
+    ComboBox<Country> addCountrySelection() {
+        HBox hBox = new HBox();
+
+        hBox.setSpacing(5);
+        ComboBox<Country> countryComboBox = new JFXComboBox<>();
+        hBox.getChildren().add(countryComboBox);
+
+        addTopLabelWithVBox(gridPane, ++gridRow, Res.get("payment.bank.country"), hBox, 0);
+
+        countryComboBox.setPromptText(Res.get("payment.select.bank.country"));
+        countryComboBox.setConverter(new StringConverter<>() {
+            @Override
+            public String toString(Country country) {
+                return country.name + " (" + country.code + ")";
+            }
+
+            @Override
+            public Country fromString(String s) {
+                return null;
+            }
+        });
+        return countryComboBox;
+    }
+
+    void setCountryComboBoxAction(ComboBox<Country> countryComboBox) {
+        countryComboBox.setOnAction(e -> {
+            selectedCountry = countryComboBox.getSelectionModel().getSelectedItem();
+        });
     }
 
     private void addCurrenciesGrid(boolean isEditable) {
@@ -122,7 +176,7 @@ public void addFormForDisplayAccount() {
     @Override
     public void updateAllInputsValid() {
         allInputsValid.set(isAccountNameValid()
-                && validator.validate(account.getAccountId()).isValid
+                && validator.validate(account.getAccountId(), selectedCountry.code).isValid
                 && account.getTradeCurrencies().size() > 0);
     }
 }

desktop/src/main/java/bisq/desktop/util/validation/RevolutValidator.java

@@ -17,13 +17,11 @@
 
 package bisq.desktop.util.validation;
 
-import bisq.core.util.validation.InputValidator;
+public final class RevolutValidator extends PhoneNumberValidator {
 
-public final class RevolutValidator extends InputValidator {
-
-    @Override
-    public ValidationResult validate(String input) {
-        // TODO
+    public ValidationResult validate(String input, String code) {
+        super.setIsoCountryCode(code);
         return super.validate(input);
     }
+
 }