WS-06-intro-to-javafx/src/main/java/workshop/Controller.java

package workshop;

import javafx.fxml.FXML;
import javafx.scene.Scene;
import javafx.scene.control.Alert;
import javafx.scene.control.Button;
import javafx.scene.control.Label;

public class Controller
{
    @FXML
    private Label titleLabel;

    @FXML
    private Button themeToggle;

    private boolean isDark = true;

    // (Optional)
    @FXML
    public void initialize() {}

    @FXML
    private void buyBasic() {showAlert("You entered the payment gateway for the Basic plan.");}

    @FXML
    private void buyPro() {showAlert("You entered the payment gateway for the Pro plan.");}

    @FXML
    private void buyEnterprise() {showAlert("You entered the payment gateway for the Enterprise plan.");}

    @FXML
    private void toggleTheme()
    {
        Scene scene = themeToggle.getScene();

        if (isDark)
        {
            scene.getStylesheets().clear();
            scene.getStylesheets().add(
                    getClass().getResource("light.css").toExternalForm()
            );

            themeToggle.setText("Switch to Dark Mode");
            isDark = false;

        }
        else
        {
            scene.getStylesheets().clear();
            scene.getStylesheets().add(
                    getClass().getResource("style.css").toExternalForm()
            );

            themeToggle.setText("Switch to Light Mode");
            isDark = true;
        }
    }

    private void showAlert(String message)
    {
        Alert alert = new Alert(Alert.AlertType.INFORMATION);
        alert.setTitle("Payment");
        alert.setHeaderText(null);
        alert.setContentText(message);
        alert.showAndWait();
    }
}