package envoy.client.ui.listcell;

import javafx.geometry.*;
import javafx.scene.control.ListView;

import envoy.data.Message;

import envoy.client.ui.control.MessageControl;

/**
 * A list cell containing messages represented as message controls.
 *
 * @author Kai S. K. Engelbart
 * @since Envoy Client v0.1-beta
 */
public final class MessageListCell extends AbstractListCell<Message, MessageControl> {

	/**
	 * @param listView the list view inside of which the cell will be displayed
	 * @since Envoy Client v0.1-beta
	 */
	public MessageListCell(ListView<? extends Message> listView) {
		super(listView);
	}

	@Override
	protected MessageControl renderItem(Message message) {
		final var control = new MessageControl(message);
		listView.widthProperty().addListener((observable, oldValue,
			newValue) -> adjustPadding(newValue.intValue(), control.isOwnMessage()));
		adjustPadding((int) listView.getWidth(), control.isOwnMessage());
		if (control.isOwnMessage())
			setAlignment(Pos.CENTER_RIGHT);
		else
			setAlignment(Pos.CENTER_LEFT);
		return control;
	}

	private void adjustPadding(int listWidth, boolean ownMessage) {
		int padding = 10 + Math.max((listWidth - 1000) / 2, 0);
		setPadding(ownMessage ? new Insets(3, padding, 3, 0) : new Insets(3, 0, 3, padding));
	}
}