/* ========================================================================
 * PlantUML : a free UML diagram generator
 * ========================================================================
 *
 * (C) Copyright 2009-2020, 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.
 *
 * 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.salt.factory;

import net.sourceforge.plantuml.ISkinSimple;
import net.sourceforge.plantuml.salt.DataSource;
import net.sourceforge.plantuml.salt.Terminated;
import net.sourceforge.plantuml.salt.element.Element;
import net.sourceforge.plantuml.salt.element.ElementButton;
import net.sourceforge.plantuml.ugraphic.UFont;

public class ElementFactoryButton implements ElementFactory {

	final private DataSource dataSource;
	final private ISkinSimple spriteContainer;

	public ElementFactoryButton(DataSource dataSource, ISkinSimple spriteContainer) {
		this.dataSource = dataSource;
		this.spriteContainer = spriteContainer;
	}

	public Terminated<Element> create() {
		if (ready() == false) {
			throw new IllegalStateException();
		}
		final Terminated<String> next = dataSource.next();
		final String text = next.getElement();
		final UFont font = UFont.byDefault(12);
		return new Terminated<Element>(new ElementButton(text.substring(1, text.length() - 1), font, spriteContainer),
				next.getTerminator());
	}

	public boolean ready() {
		final String text = dataSource.peek(0).getElement();
		return text.startsWith("[") && text.endsWith("]");
	}
}
