/* ========================================================================
 * 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!)
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 * 
 * 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.command.note.sequence;

import net.sourceforge.plantuml.StringUtils;
import net.sourceforge.plantuml.command.Command;
import net.sourceforge.plantuml.command.CommandExecutionResult;
import net.sourceforge.plantuml.command.CommandMultilines2;
import net.sourceforge.plantuml.command.MultilinesStrategy;
import net.sourceforge.plantuml.command.ParserPass;
import net.sourceforge.plantuml.command.SingleLineCommand2;
import net.sourceforge.plantuml.command.Trim;
import net.sourceforge.plantuml.command.note.SingleMultiFactoryCommand;
import net.sourceforge.plantuml.klimt.color.ColorParser;
import net.sourceforge.plantuml.klimt.color.ColorType;
import net.sourceforge.plantuml.klimt.color.Colors;
import net.sourceforge.plantuml.klimt.color.HColorSet;
import net.sourceforge.plantuml.klimt.color.NoSuchColorException;
import net.sourceforge.plantuml.klimt.creole.Display;
import net.sourceforge.plantuml.regex.IRegex;
import net.sourceforge.plantuml.regex.RegexConcat;
import net.sourceforge.plantuml.regex.RegexLeaf;
import net.sourceforge.plantuml.regex.RegexResult;
import net.sourceforge.plantuml.sequencediagram.EventWithNote;
import net.sourceforge.plantuml.sequencediagram.Note;
import net.sourceforge.plantuml.sequencediagram.NotePosition;
import net.sourceforge.plantuml.sequencediagram.NoteStyle;
import net.sourceforge.plantuml.sequencediagram.SequenceDiagram;
import net.sourceforge.plantuml.skin.ColorParam;
import net.sourceforge.plantuml.stereo.Stereotype;
import net.sourceforge.plantuml.stereo.StereotypePattern;
import net.sourceforge.plantuml.url.Url;
import net.sourceforge.plantuml.url.UrlBuilder;
import net.sourceforge.plantuml.url.UrlMode;
import net.sourceforge.plantuml.utils.BlocLines;
import net.sourceforge.plantuml.utils.LineLocation;

public final class FactorySequenceNoteOnArrowCommand implements SingleMultiFactoryCommand<SequenceDiagram> {

	private IRegex getRegexConcatMultiLine() {
		return RegexConcat.build(FactorySequenceNoteOnArrowCommand.class.getName() + "multi", RegexLeaf.start(), //
				RegexLeaf.spaceZeroOrMore(), //
				new RegexLeaf("STYLE", "(note|hnote|rnote)"), //
				StereotypePattern.optional("STEREO1"), //
				new RegexLeaf("POSITION", "(right|left|bottom|top)"), //
				StereotypePattern.optional("STEREO2"), //
				ColorParser.exp1(), //
				RegexLeaf.spaceZeroOrMore(), //
				UrlBuilder.OPTIONAL, //
				RegexLeaf.end());
	}

	private IRegex getRegexConcatSingleLine() {
		return RegexConcat.build(FactorySequenceNoteOnArrowCommand.class.getName() + "single", RegexLeaf.start(), //
				RegexLeaf.spaceZeroOrMore(), //
				new RegexLeaf("STYLE", "(note|hnote|rnote)"), //
				StereotypePattern.optional("STEREO1"), //
				new RegexLeaf("POSITION", "(right|left|bottom|top)"), //
				StereotypePattern.optional("STEREO2"), //
				ColorParser.exp1(), //
				RegexLeaf.spaceZeroOrMore(), //
				UrlBuilder.OPTIONAL, //
				RegexLeaf.spaceZeroOrMore(), //
				new RegexLeaf(":"), //
				RegexLeaf.spaceZeroOrMore(), //
				new RegexLeaf("NOTE", "(.*)"), RegexLeaf.end());
	}

	public Command<SequenceDiagram> createSingleLine() {
		return new SingleLineCommand2<SequenceDiagram>(getRegexConcatSingleLine()) {

			@Override
			protected CommandExecutionResult executeArg(final SequenceDiagram diagram, LineLocation location,
					RegexResult arg, ParserPass currentPass) throws NoSuchColorException {
				final Display display = Display.getWithNewlines(diagram.getPragma(), arg.get("NOTE", 0));
				return executeInternal(diagram, arg, diagram.manageVariable(display));
			}

		};
	}

	public Command<SequenceDiagram> createMultiLine(boolean withBracket) {
		return new CommandMultilines2<SequenceDiagram>(getRegexConcatMultiLine(),
				MultilinesStrategy.KEEP_STARTING_QUOTE, Trim.BOTH) {

			@Override
			public String getPatternEnd() {
				return "^[%s]*end[%s]?note$";
			}

			@Override
			protected CommandExecutionResult executeNow(final SequenceDiagram diagram, BlocLines lines,
					ParserPass currentPass) throws NoSuchColorException {
				final RegexResult line0 = getStartingPattern().matcher(lines.getFirst().getTrimmed().getString());
				lines = lines.subExtract(1, 1).expandsJaws5();
				lines = lines.removeEmptyColumns();
				final Display display = lines.toDisplay();
				return executeInternal(diagram, line0, diagram.manageVariable(display));
			}

		};
	}

	private CommandExecutionResult executeInternal(SequenceDiagram diagram, final RegexResult line0, Display display)
			throws NoSuchColorException {
		final EventWithNote event = diagram.getLastEventWithNote();
		if (event == null)
			return CommandExecutionResult.ok();

		final NotePosition position = NotePosition.valueOf(StringUtils.goUpperCase(line0.get("POSITION", 0)));
		Url url = null;
		if (line0.get("URL", 0) != null) {
			final UrlBuilder urlBuilder = new UrlBuilder(diagram.getSkinParam().getValue("topurl"), UrlMode.STRICT);
			url = urlBuilder.getUrl(line0.get("URL", 0));
		}

		final NoteStyle style = NoteStyle.getNoteStyle(line0.get("STYLE", 0));
		final String backcolor0 = line0.get("COLOR", 0);
		Colors colors = Colors.empty().add(ColorType.BACK,
				backcolor0 == null ? null : HColorSet.instance().getColor(backcolor0));
		final Note note = new Note(display, position, style, diagram.getSkinParam().getCurrentStyleBuilder());
		final String stereotypeString = line0.getLazzy("STEREO", 0);
		if (stereotypeString != null) {
			final Stereotype stereotype = Stereotype.build(stereotypeString);
			colors = colors.applyStereotypeForNote(stereotype, diagram.getSkinParam(), ColorParam.noteBackground,
					ColorParam.noteBorder);
			note.setStereotype(stereotype);
		}
		note.setUrl(url);
		note.setColors(colors);
		event.addNote(note);

		return CommandExecutionResult.ok();
	}

}
