/* ========================================================================
 * PlantUML : a free UML diagram generator
 * ========================================================================
 *
 * (C) Copyright 2009-2024, Arnaud Roques
 *
 * Project Info:  https://plantuml.com
 * 
 * If you like this project or if you find it useful, you can support us at:
 * 
 * https://plantuml.com/patreon (only 1$ per month!)
 * https://plantuml.com/paypal
 * 
 * This file is part of PlantUML.
 *
 * PlantUML is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * PlantUML distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
 * License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 *
 *
 * Original Author:  Arnaud Roques
 * 
 *
 */
package net.sourceforge.plantuml.sequencediagram.teoz;

import net.sourceforge.plantuml.klimt.UTranslate;
import net.sourceforge.plantuml.klimt.drawing.UGraphic;
import net.sourceforge.plantuml.klimt.font.StringBounder;
import net.sourceforge.plantuml.klimt.geom.XDimension2D;
import net.sourceforge.plantuml.real.Real;
import net.sourceforge.plantuml.sequencediagram.Event;
import net.sourceforge.plantuml.sequencediagram.MessageExo;
import net.sourceforge.plantuml.sequencediagram.MessageExoType;
import net.sourceforge.plantuml.skin.Area;
import net.sourceforge.plantuml.skin.ArrowComponent;
import net.sourceforge.plantuml.skin.ArrowConfiguration;
import net.sourceforge.plantuml.skin.ArrowDecoration;
import net.sourceforge.plantuml.skin.Component;
import net.sourceforge.plantuml.skin.Context2D;
import net.sourceforge.plantuml.skin.rose.ComponentRoseArrow;
import net.sourceforge.plantuml.skin.rose.Rose;
import net.sourceforge.plantuml.style.ISkinParam;

public class CommunicationExoTile extends AbstractTile {

	private final LivingSpace livingSpace;
	private final MessageExo message;
	private final Rose skin;
	private final ISkinParam skinParam;
	private final TileArguments tileArguments;
	private final YGauge yGauge;

	public Event getEvent() {
		return message;
	}

	public CommunicationExoTile(LivingSpace livingSpace, MessageExo message, Rose skin, ISkinParam skinParam,
			TileArguments tileArguments, YGauge currentY) {
		super(tileArguments.getStringBounder(), currentY);
		this.tileArguments = tileArguments;
		this.livingSpace = livingSpace;
		this.message = message;
		this.skin = skin;
		this.skinParam = skinParam;
		this.yGauge = YGauge.create(currentY.getMax(), getPreferredHeight());
	}

	@Override
	public YGauge getYGauge() {
		return yGauge;
	}

	@Override
	public double getContactPointRelative() {
		return getComponent(getStringBounder()).getYPoint(getStringBounder());
	}

	private ArrowComponent getComponent(StringBounder stringBounder) {
		ArrowConfiguration arrowConfiguration = message.getArrowConfiguration();
		if (message.getType().getDirection() == -1)
			arrowConfiguration = arrowConfiguration.reverse();

		final ArrowComponent comp = skin.createComponentArrow(message.getUsedStyles(), arrowConfiguration, skinParam,
				message.getLabelNumbered());
		return comp;
	}

	public void drawU(UGraphic ug) {
		if (YGauge.USE_ME)
			ug = ug.apply(UTranslate.dy(getYGauge().getMin().getCurrentValue()));
		final StringBounder stringBounder = ug.getStringBounder();
		final Component comp = getComponent(stringBounder);
		final XDimension2D dim = comp.getPreferredDimension(stringBounder);
		double x1 = getPoint1Value(stringBounder);
		double x2 = getPoint2Value(stringBounder);

		final double textDeltaX = isFromLeftBorderMessage()
																? getPoint1(stringBounder).getCurrentValue() - x1
																: isFromRightBorderMessage()
																		? getPoint2(stringBounder).getCurrentValue() - x2
																		: 0;

		final int level = livingSpace.getLevelAt(this, EventsHistoryMode.IGNORE_FUTURE_DEACTIVATE);
		if (level > 0) {
			if (message.getType().isRightBorder())
				x1 += CommunicationTile.LIVE_DELTA_SIZE * level;
			else
				x2 += CommunicationTile.LIVE_DELTA_SIZE * (level - 2);
		}

		final ArrowConfiguration arrowConfiguration = message.getArrowConfiguration();
		final MessageExoType type = message.getType();
		if (arrowConfiguration.getDecoration1() == ArrowDecoration.CIRCLE && type == MessageExoType.FROM_LEFT)
			x1 += ComponentRoseArrow.diamCircle / 2 + 2;

		if (arrowConfiguration.getDecoration2() == ArrowDecoration.CIRCLE && type == MessageExoType.TO_LEFT)
			x1 += ComponentRoseArrow.diamCircle / 2 + 2;

		if (arrowConfiguration.getDecoration2() == ArrowDecoration.CIRCLE && type == MessageExoType.TO_RIGHT)
			x2 -= ComponentRoseArrow.diamCircle / 2 + 2;

		if (arrowConfiguration.getDecoration1() == ArrowDecoration.CIRCLE && type == MessageExoType.FROM_RIGHT)
			x2 -= ComponentRoseArrow.diamCircle / 2 + 2;

		final Area area = Area.create(x2 - x1, dim.getHeight());
		area.setTextDeltaX(textDeltaX);
		ug = ug.apply(UTranslate.dx(x1));
		comp.drawU(ug, area, (Context2D) ug);
	}

	private boolean isShortArrow() {
		return message.isShortArrow();
	}

	@Override
	public double getPreferredHeight() {
		final Component comp = getComponent(getStringBounder());
		final XDimension2D dim = comp.getPreferredDimension(getStringBounder());
		return dim.getHeight();
	}

	private double getPreferredWidth(StringBounder stringBounder) {
		final Component comp = getComponent(stringBounder);
		final XDimension2D dim = comp.getPreferredDimension(stringBounder);
		return dim.getWidth();
	}

	public void addConstraints() {
		final Component comp = getComponent(getStringBounder());
		final XDimension2D dim = comp.getPreferredDimension(getStringBounder());
		final double width = dim.getWidth();

		if (message.getType().isRightBorder()) {
		} else {
			livingSpace.getPosC(getStringBounder()).ensureBiggerThan(tileArguments.getXOrigin().addFixed(width));
		}

		// final Real point1 = getPoint1(stringBounder);
		// if (message.getType().isRightBorder()) {
		// final Real point2 = point1.addFixed(width);
		// } else {
		// final Real point2 = getPoint2(stringBounder);
		// if (point1.getCurrentValue() < point2.getCurrentValue()) {
		// point2.ensureBiggerThan(point1.addFixed(width));
		// } else {
		// point1.ensureBiggerThan(point2.addFixed(width));
		// }
		// }
	}

	@Override
	final protected void callbackY_internal(TimeHook y) {
		super.callbackY_internal(y);
		final ArrowComponent comp = getComponent(getStringBounder());
		final XDimension2D dim = comp.getPreferredDimension(getStringBounder());
		final double arrowY = comp.getStartPoint(getStringBounder(), dim).getY();

		livingSpace.addStepForLivebox(getEvent(), y.getValue() + arrowY);

	}

	private Real getPoint1(final StringBounder stringBounder) {
		if (message.getType().isRightBorder())
			return livingSpace.getPosC(stringBounder);

		return livingSpace.getPosC(stringBounder).addFixed(-getPreferredWidth(stringBounder));
	}

	private Real getPoint2(final StringBounder stringBounder) {
		if (message.getType().isLeftBorder())
			return livingSpace.getPosC(stringBounder);

		return getPoint1(stringBounder).addFixed(getPreferredWidth(stringBounder));
	}

	private double getPoint1Value(final StringBounder stringBounder) {
		if (isFromLeftBorderMessage())
			return tileArguments.getBorder1();

		return getPoint1(stringBounder).getCurrentValue();
	}

	private double getPoint2Value(final StringBounder stringBounder) {
		if (isFromRightBorderMessage())
			return tileArguments.getBorder2();

		return getPoint2(stringBounder).getCurrentValue();
	}

	public Real getMinX() {
		return getPoint1(getStringBounder());
	}

	public Real getMaxX() {
		return getPoint2(getStringBounder());
	}

	final public double getMiddleX() {
		if (!isFromLeftBorderMessage())
			return super.getMiddleX();

		final double min = getPoint1Value(getStringBounder());

		final double max = isFromLeftBorderMessage()
												? min + getPreferredWidth(getStringBounder())
												: getPoint2Value(getStringBounder());

		return (min + max) / 2;
	}

	public boolean isFromRightBorderMessage() {
		return message.getType().isRightBorder() && !isShortArrow();
	}

	public boolean isFromLeftBorderMessage() {
		return message.getType().isLeftBorder() && !isShortArrow();
	}
}
