package acadpointinserterbyuserinput;

import javafx.event.EventHandler;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.input.KeyEvent;
import javafx.scene.layout.BorderPane;
import javafx.stage.Stage;
import javafx.scene.control.TextField;
import ru.tensor.petrov.commons.javafx.StyleConstants;

import static acadpointinserterbyuserinput.AcadPointInserterByUserInput.ERROR_ELEVATION;
import static java.lang.Double.parseDouble;
import static javafx.application.Platform.runLater;

public class NumberDialogPane extends BorderPane {

    public final Stage stage = new Stage();
    
    private static final String //
            STYLE_FONT_35 = "-fx-font-size: 35pt;",
            STYLE_ERROR = STYLE_FONT_35 + StyleConstants.STYLE_ERROR;
    
    private final TextField textField;
    private double number = ERROR_ELEVATION;

    public NumberDialogPane() {
        setPadding(new Insets(30));

        textField = new TextField();
        textField.setStyle(STYLE_FONT_35);

        setCenter(textField);
        stage.setScene(new Scene(this));
        setOnKeyPressed(ehOnKeyPressed);
    }
    //
    //<editor-fold defaultstate="collapsed" desc="ehOnKeyPressed">
    private final EventHandler<KeyEvent> ehOnKeyPressed = new EventHandler<KeyEvent>() {
        @Override public void handle(KeyEvent e) {
            try {
                switch (e.getCode()) {
                    case ENTER:
                        number = parseDouble(textField.getText().replace(',', '.'));
                        textField.setStyle(STYLE_FONT_35);
                    case ESCAPE:
                        stage.close();
                }
            } catch (NumberFormatException ex) {
                textField.setStyle(STYLE_ERROR);
            }
        }
    };
    //</editor-fold>
    //
    //<editor-fold defaultstate="collapsed" desc="askUser">
    public boolean firstTimeSinceMainPaneHasShown = true;

    public double askUser() {
        if (firstTimeSinceMainPaneHasShown) {
            stage.setIconified(true);
            firstTimeSinceMainPaneHasShown = false;
        }

        number = ERROR_ELEVATION;

        //<editor-fold defaultstate="collapsed" desc"stage.setIconified(false)">
        new Thread() {
            @Override
            public void run() {
                runLater(new Runnable() {
                    @Override
                    public void run() {
                        stage.setIconified(false);
                    }
                });
            }
        }.start();
        //</editor-fold>

        stage.showAndWait();
        return number;
    }
    //</editor-fold>
}