/* ========================================================================
 * PlantUML : a free UML diagram generator
 * ========================================================================
 *
 * (C) Copyright 2009-2023, 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!)
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 * 
 * This file is part of PlantUML.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 *
 * Original Author:  Arnaud Roques
 */
package net.sourceforge.plantuml.activitydiagram3.ftile.vcompact;

import java.util.List;

import net.sourceforge.plantuml.activitydiagram3.LinkRendering;
import net.sourceforge.plantuml.activitydiagram3.ftile.BoxStyle;
import net.sourceforge.plantuml.activitydiagram3.ftile.Connection;
import net.sourceforge.plantuml.activitydiagram3.ftile.Ftile;
import net.sourceforge.plantuml.activitydiagram3.ftile.FtileBreak;
import net.sourceforge.plantuml.activitydiagram3.ftile.FtileFactory;
import net.sourceforge.plantuml.activitydiagram3.ftile.FtileFactoryDelegator;
import net.sourceforge.plantuml.activitydiagram3.ftile.FtileUtils;
import net.sourceforge.plantuml.activitydiagram3.ftile.Genealogy;
import net.sourceforge.plantuml.activitydiagram3.ftile.Snake;
import net.sourceforge.plantuml.activitydiagram3.ftile.Swimlane;
import net.sourceforge.plantuml.activitydiagram3.ftile.WeldingPoint;
import net.sourceforge.plantuml.activitydiagram3.ftile.vertical.FtileDiamond;
import net.sourceforge.plantuml.awt.geom.XDimension2D;
import net.sourceforge.plantuml.cucadiagram.Display;
import net.sourceforge.plantuml.graphic.FontConfiguration;
import net.sourceforge.plantuml.graphic.Rainbow;
import net.sourceforge.plantuml.graphic.color.Colors;
import net.sourceforge.plantuml.style.PName;
import net.sourceforge.plantuml.style.Style;
import net.sourceforge.plantuml.svek.ConditionStyle;
import net.sourceforge.plantuml.ugraphic.UGraphic;
import net.sourceforge.plantuml.ugraphic.UTranslate;
import net.sourceforge.plantuml.ugraphic.color.HColor;

public class FtileFactoryDelegatorRepeat extends FtileFactoryDelegator {

	public FtileFactoryDelegatorRepeat(FtileFactory factory) {
		super(factory);
	}

	@Override
	public Ftile repeat(BoxStyle boxStyleIn, Swimlane swimlane, Swimlane swimlaneOut, Display startLabel,
			final Ftile repeat, Display test, Display yes, Display out, Colors colors, Ftile backward, boolean noOut,
			LinkRendering incoming1, LinkRendering incoming2) {

		final ConditionStyle conditionStyle = skinParam().getConditionStyle();

		final Style styleArrow = getDefaultStyleDefinitionArrow().getMergedStyle(skinParam().getCurrentStyleBuilder());
		final Style styleDiamond = getDefaultStyleDefinitionDiamond()
				.getMergedStyle(skinParam().getCurrentStyleBuilder());
		final HColor borderColor = styleDiamond.value(PName.LineColor).asColor(skinParam().getIHtmlColorSet());
		final HColor diamondColor = styleDiamond.value(PName.BackGroundColor).asColor(skinParam().getIHtmlColorSet());
		final Rainbow arrowColor = Rainbow.build(styleArrow, skinParam().getIHtmlColorSet());
		final FontConfiguration fcDiamond = styleDiamond.getFontConfiguration(skinParam().getIHtmlColorSet());
		final FontConfiguration fcArrow = styleArrow.getFontConfiguration(skinParam().getIHtmlColorSet());

		final LinkRendering endRepeatLinkRendering = repeat.getOutLinkRendering();
		final Rainbow endRepeatLinkColor = endRepeatLinkRendering == null ? null : endRepeatLinkRendering.getRainbow();

		final Ftile entry = getEntry(repeat.getSwimlaneIn(), startLabel, colors, boxStyleIn);

		Ftile result = FtileRepeat.create(swimlane, swimlaneOut, entry, repeat, test, yes, out, borderColor,
				diamondColor, arrowColor, endRepeatLinkColor, conditionStyle, this.skinParam(), fcDiamond, fcArrow,
				backward, noOut, incoming1, incoming2);

		final List<WeldingPoint> weldingPoints = repeat.getWeldingPoints();
		if (weldingPoints.size() > 0) {
			// printAllChild(repeat);

			final Ftile diamondBreak = new FtileDiamond(repeat.skinParam(), diamondColor, borderColor, swimlane);
			result = assembly(FtileUtils.addHorizontalMargin(result, 10, 0), diamondBreak);
			final Genealogy genealogy = new Genealogy(result);

			final FtileBreak ftileBreak = (FtileBreak) weldingPoints.get(0);

			result = FtileUtils.addConnection(result, new Connection() {
				public void drawU(UGraphic ug) {
					final UTranslate tr1 = genealogy.getTranslate(ftileBreak, ug.getStringBounder());
					final UTranslate tr2 = genealogy.getTranslate(diamondBreak, ug.getStringBounder());
					final XDimension2D dimDiamond = diamondBreak.calculateDimension(ug.getStringBounder());

					final Snake snake = Snake.create(skinParam(), arrowColor, skinParam().arrows().asToRight());
					snake.addPoint(tr1.getDx(), tr1.getDy());
					snake.addPoint(0, tr1.getDy());
					snake.addPoint(0, tr2.getDy() + dimDiamond.getHeight() / 2);
					snake.addPoint(tr2.getDx(), tr2.getDy() + dimDiamond.getHeight() / 2);
					ug.draw(snake);
				}

				public Ftile getFtile1() {
					return ftileBreak;
				}

				public Ftile getFtile2() {
					return diamondBreak;
				}

			});

		}
		return result;
	}

	private Ftile getEntry(Swimlane swimlane, Display startLabel, Colors colors, BoxStyle boxStyleIn) {
		if (Display.isNull(startLabel))
			return null;

		return this.activity(startLabel, swimlane, boxStyleIn, colors, null);
	}
}
