/**
 * Copyright (C) 2001-2017 by RapidMiner and the contributors
 * 
 * Complete list of developers available at our web site:
 * 
 * http://rapidminer.com
 * 
 * This program is free software: you can redistribute it and/or modify it under the terms of the
 * GNU Affero General Public License as published by the Free Software Foundation, either version 3
 * of the License, or (at your option) any later version.
 * 
 * This program is 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
 * Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License along with this program.
 * If not, see http://www.gnu.org/licenses/.
*/
package com.rapidminer.gui.properties;

import com.rapidminer.operator.Operator;
import com.rapidminer.parameter.ParameterType;
import com.rapidminer.parameter.Parameters;
import com.rapidminer.parameter.UndefinedParameterError;

import java.util.Collection;
import java.util.LinkedList;
import java.util.List;


/**
 * This panel might be used, where ever ParameterTypes should be editable without presence of an
 * operator or special circumstances.
 * 
 * @author Sebastian Land
 * 
 */
public class GenericParameterPanel extends PropertyPanel {

	private static final long serialVersionUID = -8633435565053835262L;

	private Parameters parameters = new Parameters();

	public GenericParameterPanel() {

	}

	public GenericParameterPanel(Parameters parameters) {
		super();
		setParameters(parameters);
	}

	@Override
	protected Operator getOperator() {
		return null;
	}

	@Override
	protected Collection<ParameterType> getProperties() {
		List<ParameterType> visible = new LinkedList<ParameterType>();
		if (parameters != null) {
			for (ParameterType type : parameters.getParameterTypes()) {
				if (!type.isHidden()) {
					visible.add(type);
				}
			}
		}
		return visible;
	}

	@Override
	protected String getValue(ParameterType type) {
		if (parameters != null) {
			try {
				return parameters.getParameter(type.getKey());
			} catch (UndefinedParameterError e) {
				return type.getDefaultValueAsString();
			}
		} else {
			return null;
		}
	}

	@Override
	/**
	 * This implementation ignores the operator, since it is null anyway.
	 */
	protected void setValue(Operator operator, ParameterType type, String value) {
		if (parameters != null) {
			parameters.setParameter(type.getKey(), value);
			// keyValueMap.put(type.getKey(), value);
			setupComponents();
		}
	}

	public void setValue(String key, String value) {
		parameters.setParameter(key, value);
		setupComponents();
	}

	public void setParameters(Parameters parameters) {
		this.parameters = parameters;

		// calling super method for rebuilding panel
		setupComponents();
	}

	public void clearProperties() {
		this.parameters = new Parameters();

		setupComponents();
	}

	public Parameters getParameters() {
		return parameters;
	}

	@Override
	protected void setValue(Operator operator, ParameterType type, String value, boolean updateComponents) {
		if (updateComponents) {
			setValue(operator, type, value);
		} else {
			parameters.setParameter(type.getKey(), value);
		}
	}

}