/**
 * License Agreement.
 *
 *  JBoss RichFaces - Ajax4jsf Component Library
 *
 * Copyright (C) 2007  Exadel, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License version 2.1 as published by the Free Software Foundation.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser 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
 */

package org.richfaces.renderkit;

import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;

import javax.faces.component.UIComponent;

import org.ajax4jsf.javascript.JSFunctionDefinition;
import org.ajax4jsf.javascript.ScriptStringBase;
import org.ajax4jsf.javascript.ScriptUtils;

/**
 * @author Maksim Kaszynski
 *
 */
public class ScriptOptions extends ScriptStringBase {

	private UIComponent component;
	protected Map<String, Object> opts = new HashMap<String, Object>();
	
	public ScriptOptions(UIComponent component) {
		this.component = component;
	}
	public void appendScript(StringBuffer functionString) {
		functionString.append(ScriptUtils.toScript(opts));
	}
	
	public void addOption(String name) {
		if (name != null) {
			Object value = component.getAttributes().get(name);
			addOption(name, value);
		}
	}
	
	@SuppressWarnings("unchecked")
	public void addOption(String name, Object value) {
		if (value != null) {
			Object object = opts.get(name);
			if (object instanceof Map && value instanceof Map) {
				((Map) object).putAll((Map) value);
			} else {
				opts.put(name, value);
			}
		}
	}
	public void addEventHandler(String event, String handler) {
		if (event != null &&  handler != null) {
			JSFunctionDefinition functionDefinition = 
				new JSFunctionDefinition("event");
			
			functionDefinition.addToBody(handler);
			functionDefinition.addToBody(";return true;");
			addEventHandler(event, functionDefinition);
		}
	}
	
	public void addEventHandler(String event) {
		if (event != null) {
			String handler = (String) component.getAttributes().get(event);
			addEventHandler(event, handler);
		}
	}
	
	public void addEventHandler(String event, JSFunctionDefinition definition) {
		if (event != null && definition != null) {
			opts.put(event, definition);
		}
	}
	public Map<String,Object> getMap() {
		return opts;
	}

	public void merge(ScriptOptions anotherOptions) {
		Iterator<Entry<String, Object>> entrySetIterator = anotherOptions.opts.entrySet().iterator();
		while (entrySetIterator.hasNext()) {
			Entry<String, Object> entry = entrySetIterator.next();
			
			addOption(entry.getKey(), entry.getValue());
		}
	}


}
