/**
 * Warlock, the open-source cross-platform game client
 *  
 * Copyright 2008, Warlock LLC, and individual contributors as indicated
 * by the @authors tag. 
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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 software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
/**
 * 
 */
package cc.warlock.core.client.internal;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import cc.warlock.core.client.IStreamFilter;
import cc.warlock.core.client.WarlockString;

/**
 * @author Will Robertson
 * Implementation of IStreamFilter
 */
public class StreamFilter implements IStreamFilter {
	private String content = "";
	private Pattern regexCompile;
	private type filterType = type.string;
	
	public StreamFilter() {
		// Do nothing, this is our default state.
	}
	
	public StreamFilter(String content, type filterType) {
		// Doing construction here allows us to do it in the most efficient order
		setContent(content);
		setType(filterType);
	}
	
	/* (non-Javadoc)
	 * @see cc.warlock.rcp.userstreams.IStreamFilter#getContent()
	 */
	public String getContent() {
		return this.content;
	}

	/* (non-Javadoc)
	 * @see cc.warlock.rcp.userstreams.IStreamFilter#getType()
	 */
	public type getType() {
		return filterType;
	}

	/* (non-Javadoc)
	 * @see cc.warlock.rcp.userstreams.IStreamFilter#match(java.lang.String)
	 */
	public boolean match(String text) {
		if (this.filterType == type.regex) {
			Matcher m = regexCompile.matcher(text);
			if(m.find()) {
				return true;
			} else {
				return false;
			}
		} else {
			return text.contains(this.content);
		}
	}
	
	public boolean match(WarlockString text) {
		return match(text.toString());
	}

	/* (non-Javadoc)
	 * @see cc.warlock.rcp.userstreams.IStreamFilter#setContent(java.lang.String)
	 */
	public void setContent(String content) {
		// TODO Auto-generated method stub
		this.content = content;
		// Compile our regex if our type is regex
		if (this.filterType == type.regex) {
			this.regexCompile = Pattern.compile(this.content);
		}
	}

	/* (non-Javadoc)
	 * @see cc.warlock.rcp.userstreams.IStreamFilter#setType(cc.warlock.rcp.userstreams.IStreamFilter.type)
	 */
	public void setType(type filterType) {
		// Test for change, so we don't have to recompile if we don't have to.
		if (this.filterType != filterType) {
			if (filterType == type.regex) {
				this.regexCompile = Pattern.compile(this.content);
			}
			this.filterType = filterType;
		}
	}

}