package envoy.client.ui;

import javafx.beans.property.BooleanProperty;
import javafx.beans.property.ObjectProperty;
import javafx.beans.property.StringProperty;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.control.*;
import javafx.scene.image.ImageView;
import javafx.scene.layout.Background;
import javafx.scene.layout.ColumnConstraints;
import javafx.scene.layout.GridPane;

/**
 * This class offers a text field that is automatically equipped with a clear
 * button.
 * <p>
 * Project: <strong>envoy-client</strong><br>
 * File: <strong>ClearableTextField.java</strong><br>
 * Created: <strong>25.06.2020</strong><br>
 *
 * @author Leon Hofmeister
 * @since Envoy Client v0.1-beta
 */
public final class ClearableTextField extends GridPane {

	private final TextField textField;

	private final Button clearButton;

	/**
	 * Constructs a new {@code ClearableTextField} with no initial text and icon
	 * size 16.
	 *
	 * @since Envoy Client v0.1-beta
	 */
	public ClearableTextField() { this("", 16); }

	/**
	 * Constructs a new {@code ClearableTextField} with initial text and a
	 * predetermined icon size.
	 *
	 * @param text the text that should be displayed by default
	 * @param size the size of the icon
	 * @since Envoy Client v0.1-beta
	 */
	public ClearableTextField(String text, int size) {
		// initializing the textField and the button
		textField	= new TextField(text);
		clearButton	= new Button("", new ImageView(IconUtil.loadIconThemeSensitive("clear_button", size)));
		clearButton.setOnAction(e -> textField.clear());
		clearButton.setFocusTraversable(false);
		clearButton.getStyleClass().clear();
		clearButton.setBackground(Background.EMPTY);
		// Adding the two elements to the GridPane
		add(textField, 0, 0, 2, 1);
		add(clearButton, 1, 0, 1, 1);
		// Setting the percent - widths of the two columns.
		// Used to locate the button on the right.
		final var columnConstraints = new ColumnConstraints();
		columnConstraints.setPercentWidth(90);
		getColumnConstraints().add(columnConstraints);
		final var columnConstraints2 = new ColumnConstraints();
		columnConstraints2.setPercentWidth(10);
		getColumnConstraints().add(columnConstraints2);
	}

	/**
	 * @return the underlying {@code textField}
	 * @since Envoy Client v0.1-beta
	 */
	public TextField getTextField() { return textField; }

	/**
	 * This method offers the freedom to perform custom actions when the
	 * {@code clearButton} has been pressed.
	 * <p>
	 * The default is
	 * <b><code>  e -> {clearableTextField.getTextField().clear();}</code></b>
	 *
	 * @param onClearButtonAction the action that should be performed
	 * @since Envoy Client v0.1-beta
	 */
	public void setClearButtonListener(EventHandler<ActionEvent> onClearButtonAction) { clearButton.setOnAction(onClearButtonAction); }

	/**
	 * @return the current property of the prompt text
	 * @see javafx.scene.control.TextInputControl#promptTextProperty()
	 * @since Envoy Client v0.1-beta
	 */
	public StringProperty promptTextProperty() { return textField.promptTextProperty(); }

	/**
	 * @return the current prompt text
	 * @see javafx.scene.control.TextInputControl#getPromptText()
	 * @since Envoy Client v0.1-beta
	 */
	public String getPromptText() { return textField.getPromptText(); }

	/**
	 * @param value the prompt text to display
	 * @see javafx.scene.control.TextInputControl#setPromptText(java.lang.String)
	 * @since Envoy Client v0.1-beta
	 */
	public void setPromptText(String value) { textField.setPromptText(value); }

	/**
	 * @return the current property of the tooltip
	 * @see javafx.scene.control.Control#tooltipProperty()
	 * @since Envoy Client v0.1-beta
	 */
	public ObjectProperty<Tooltip> tooltipProperty() { return textField.tooltipProperty(); }

	/**
	 * @param value the new tooltip
	 * @see javafx.scene.control.Control#setTooltip(javafx.scene.control.Tooltip)
	 * @since Envoy Client v0.1-beta
	 */
	public void setTooltip(Tooltip value) { textField.setTooltip(value); }

	/**
	 * @return the current tooltip
	 * @see javafx.scene.control.Control#getTooltip()
	 * @since Envoy Client v0.1-beta
	 */
	public Tooltip getTooltip() { return textField.getTooltip(); }

	/**
	 * @return the current property of the context menu
	 * @see javafx.scene.control.Control#contextMenuProperty()
	 * @since Envoy Client v0.1-beta
	 */
	public ObjectProperty<ContextMenu> contextMenuProperty() { return textField.contextMenuProperty(); }

	/**
	 * @param value the new context menu
	 * @see javafx.scene.control.Control#setContextMenu(javafx.scene.control.ContextMenu)
	 * @since Envoy Client v0.1-beta
	 */
	public void setContextMenu(ContextMenu value) { textField.setContextMenu(value); }

	/**
	 * @return the current context menu
	 * @see javafx.scene.control.Control#getContextMenu()
	 * @since Envoy Client v0.1-beta
	 */
	public ContextMenu getContextMenu() { return textField.getContextMenu(); }

	/**
	 * @param value whether this ClearableTextField should be editable
	 * @see javafx.scene.control.TextInputControl#setEditable(boolean)
	 * @since Envoy Client v0.1-beta
	 */
	public void setEditable(boolean value) { textField.setEditable(value); }

	/**
	 * @return the current property whether this ClearableTextField is editable
	 * @see javafx.scene.control.TextInputControl#editableProperty()
	 * @since Envoy Client v0.1-beta
	 */
	public BooleanProperty editableProperty() { return textField.editableProperty(); }

	/**
	 * @return whether this {@code ClearableTextField} is editable
	 * @see javafx.scene.control.TextInputControl#isEditable()
	 * @since Envoy Client v0.1-beta
	 */
	public boolean isEditable() { return textField.isEditable(); }
}