/**
 *
 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
 *
 * This library 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 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, see <http://www.gnu.org/licenses/>.
 * 
 **/
/**
 * Implements the CFML Function writeoutput
 */
package lucee.runtime.functions.other;

import java.io.IOException;

import lucee.commons.lang.StringUtil;
import lucee.runtime.PageContext;
import lucee.runtime.exp.FunctionException;
import lucee.runtime.exp.PageException;
import lucee.runtime.ext.function.BIF;
import lucee.runtime.functions.owasp.ESAPIEncode;
import lucee.runtime.op.Caster;

public final class WriteOutput extends BIF {
    public static boolean call(PageContext pc , String string) throws PageException {
        try {
            pc.forceWrite(string);
        }
        catch (IOException e) {
            throw Caster.toPageException(e);
        }
        return true;
    }
    
    public static boolean call(PageContext pc , String string, String encodeFor) throws PageException {
        try {
        	if(!StringUtil.isEmpty(string))
        		pc.forceWrite(ESAPIEncode.call(pc, encodeFor, string));
        	else 
        		pc.forceWrite(string);
        }
        catch (IOException e) {
            throw Caster.toPageException(e);
        }
        return true;
    }

	@Override
	public Object invoke(PageContext pc, Object[] args) throws PageException {
		if(args.length==2) return call(pc,Caster.toString(args[0]),Caster.toString(args[1]));
		if(args.length==1) return call(pc,Caster.toString(args[0]));
		throw new FunctionException(pc, "WriteOutput", 1, 2, args.length);
	}
}