/* ========================================================================
 * PlantUML : a free UML diagram generator
 * ========================================================================
 *
 * (C) Copyright 2009-2020, Arnaud Roques
 *
 * Project Info:  http://plantuml.com
 * 
 * If you like this project or if you find it useful, you can support us at:
 * 
 * http://plantuml.com/patreon (only 1$ per month!)
 * http://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.activitydiagram3.command;

import net.sourceforge.plantuml.ColorParam;
import net.sourceforge.plantuml.LineLocation;
import net.sourceforge.plantuml.SkinParam;
import net.sourceforge.plantuml.StringUtils;
import net.sourceforge.plantuml.activitydiagram3.ActivityDiagram3;
import net.sourceforge.plantuml.command.CommandExecutionResult;
import net.sourceforge.plantuml.command.SingleLineCommand2;
import net.sourceforge.plantuml.command.regex.IRegex;
import net.sourceforge.plantuml.command.regex.RegexConcat;
import net.sourceforge.plantuml.command.regex.RegexLeaf;
import net.sourceforge.plantuml.command.regex.RegexOptional;
import net.sourceforge.plantuml.command.regex.RegexResult;
import net.sourceforge.plantuml.cucadiagram.Display;
import net.sourceforge.plantuml.cucadiagram.Stereotype;
import net.sourceforge.plantuml.graphic.HtmlColor;
import net.sourceforge.plantuml.graphic.HtmlColorUtils;
import net.sourceforge.plantuml.graphic.USymbol;
import net.sourceforge.plantuml.graphic.color.ColorParser;
import net.sourceforge.plantuml.graphic.color.ColorType;
import net.sourceforge.plantuml.graphic.color.Colors;
import net.sourceforge.plantuml.style.PName;
import net.sourceforge.plantuml.style.SName;
import net.sourceforge.plantuml.style.Style;
import net.sourceforge.plantuml.style.StyleSignature;

public class CommandPartition3 extends SingleLineCommand2<ActivityDiagram3> {

	public CommandPartition3() {
		super(getRegexConcat());
	}

	static IRegex getRegexConcat() {
		return RegexConcat.build(CommandPartition3.class.getName(), RegexLeaf.start(), //
				new RegexLeaf("TYPE", "(partition|package|rectangle|card)"), //
				RegexLeaf.spaceOneOrMore(), //
				new RegexOptional(//
						new RegexConcat( //
								color("BACK1").getRegex(),//
								RegexLeaf.spaceOneOrMore())), //
				new RegexLeaf("NAME", "([%g][^%g]+[%g]|\\S+)"), //
				new RegexOptional(//
						new RegexConcat( //
								RegexLeaf.spaceOneOrMore(), //
								color("BACK2").getRegex())), //
				RegexLeaf.spaceZeroOrMore(), //
				new RegexLeaf("STEREO", "(\\<{2}.*\\>{2})?"), //
				RegexLeaf.spaceZeroOrMore(), //
				new RegexLeaf("\\{?"), //
				RegexLeaf.end());
	}

	private USymbol getUSymbol(String type) {
		if ("card".equalsIgnoreCase(type)) {
			return USymbol.CARD;
		}
		if ("package".equalsIgnoreCase(type)) {
			return USymbol.PACKAGE;
		}
		if ("rectangle".equalsIgnoreCase(type)) {
			return USymbol.RECTANGLE;
		}
		return USymbol.FRAME;
	}

	private ColorParam getColorParamBorder(final USymbol symbol) {
		if (symbol == USymbol.FRAME) {
			return ColorParam.partitionBorder;
		}
		return symbol.getColorParamBorder();
	}

	private ColorParam getColorParamBack(final USymbol symbol) {
		if (symbol == USymbol.FRAME) {
			return ColorParam.partitionBackground;
		}
		return symbol.getColorParamBack();
	}

	private static ColorParser color(String id) {
		return ColorParser.simpleColor(ColorType.BACK, id);
	}

	@Override
	protected CommandExecutionResult executeArg(ActivityDiagram3 diagram, LineLocation location, RegexResult arg) {
		final String partitionTitle = StringUtils.eventuallyRemoveStartingAndEndingDoubleQuote(arg.get("NAME", 0));

		final String b1 = arg.get("BACK1", 0);
		final Colors colors = color(b1 == null ? "BACK2" : "BACK1").getColor(arg,
				diagram.getSkinParam().getIHtmlColorSet());

		final USymbol symbol = getUSymbol(arg.get("TYPE", 0));
		final String stereo = arg.get("STEREO", 0);
		final Stereotype stereotype = stereo == null ? null : new Stereotype(stereo);

		final HtmlColor backColorInSkinparam = diagram.getSkinParam().getHtmlColor(getColorParamBack(symbol),
				stereotype, false);
		HtmlColor backColor;
		if (backColorInSkinparam == null) {
			backColor = colors.getColor(ColorType.BACK);
		} else {
			backColor = backColorInSkinparam;
		}
		HtmlColor titleColor = colors.getColor(ColorType.HEADER);

		// Warning : titleColor unused in FTileGroupW
		HtmlColor borderColor = diagram.getSkinParam().getHtmlColor(getColorParamBorder(symbol), stereotype, false);
		if (borderColor == null) {
			borderColor = HtmlColorUtils.BLACK;
		}
		double roundCorner = symbol.getSkinParameter().getRoundCorner(diagram.getSkinParam(), stereotype);

		if (SkinParam.USE_STYLES()) {
			final Style stylePartition = getDefaultStyleDefinitionPartition().getMergedStyle(
					diagram.getSkinParam().getCurrentStyleBuilder());
			borderColor = stylePartition.value(PName.LineColor).asColor(diagram.getSkinParam().getIHtmlColorSet());
			backColor = colors.getColor(ColorType.BACK);
			if (backColor == null) {
				backColor = stylePartition.value(PName.BackGroundColor).asColor(
						diagram.getSkinParam().getIHtmlColorSet());
			}
			titleColor = HtmlColorUtils.BLUE;// stylePartition.value(PName.FontColor).asColor(diagram.getSkinParam().getIHtmlColorSet());
			roundCorner = stylePartition.value(PName.RoundCorner).asDouble();
		}

		diagram.startGroup(Display.getWithNewlines(partitionTitle), backColor, titleColor, borderColor, symbol,
				roundCorner);

		return CommandExecutionResult.ok();
	}

	final public StyleSignature getDefaultStyleDefinitionPartition() {
		return StyleSignature.of(SName.root, SName.element, SName.activityDiagram, SName.partition);
	}

}
