/**
 *
 * 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/>.
 * 
 **/
package lucee.runtime.type.scope;

import java.io.UnsupportedEncodingException;

import lucee.commons.net.URLItem;
import lucee.runtime.PageContext;
import lucee.runtime.listener.ApplicationContext;
import lucee.runtime.net.http.ReqRspUtil;
import lucee.runtime.op.Caster;
import lucee.runtime.type.Collection;
import lucee.runtime.type.KeyImpl;
import lucee.runtime.type.Struct;

/**
 * Implements URL Scope 
 */
public final class URLImpl extends ScopeSupport implements URL,ScriptProtected {

	private String encoding=null;
    private int scriptProtected=ScriptProtected.UNDEFINED;
    private static final URLItem[] empty=new URLItem[0];
	private static final Collection.Key REQUEST_TIMEOUT = KeyImpl.intern("RequestTimeout"); 
    private URLItem[] raw=empty;
    
	/**
	 * Standart Constructor
	 */
	public URLImpl() {
		super("url",SCOPE_URL, Struct.TYPE_LINKED);
	}

    @Override
    public String getEncoding() {
        return encoding;
    }

    @Override
    public void setEncoding(ApplicationContext ac,String encoding) throws UnsupportedEncodingException {
        encoding=encoding.trim().toUpperCase();
        if(encoding.equals(this.encoding)) return;
        this.encoding = encoding;
        if(isInitalized())fillDecoded(raw,encoding,isScriptProtected(),ac.getSameFieldAsArray(SCOPE_URL));
    }

	@Override
	public void initialize(PageContext pc) {
        if(encoding==null)encoding=pc.getWebCharset().name();
        if(scriptProtected==ScriptProtected.UNDEFINED) {
			scriptProtected=((pc.getApplicationContext().getScriptProtect()&ApplicationContext.SCRIPT_PROTECT_URL)>0)?
					ScriptProtected.YES:ScriptProtected.NO;
		}
        
        try {
			super.initialize(pc); 
            raw=setFromQueryString(ReqRspUtil.getQueryString(pc.getHttpServletRequest()));
            
            fillDecoded(raw,encoding,isScriptProtected(),pc.getApplicationContext().getSameFieldAsArray(SCOPE_URL));
            
            if(raw.length>0 && pc.getConfig().isAllowURLRequestTimeout()){
            	Object o=get(REQUEST_TIMEOUT,null);
            	if(o!=null) {
            		long timeout = Caster.toLongValue(o,-1);
            		if(timeout!=-1)pc.setRequestTimeout(timeout*1000);
            	}
            	Caster.toDoubleValue(o,false,-1);
            }
		}
        catch (Exception e) {}
	}


    @Override
    public void reinitialize(ApplicationContext ac) {
        if(isInitalized()){
        	if(scriptProtected==ScriptProtected.UNDEFINED) {
    			scriptProtected=((ac.getScriptProtect()&ApplicationContext.SCRIPT_PROTECT_URL)>0)?
    					ScriptProtected.YES:ScriptProtected.NO;
    		}
            
        	fillDecodedEL(raw,encoding,isScriptProtected(),ac.getSameFieldAsArray(SCOPE_URL));
        }
    }

	@Override
	public void release(PageContext pc) {
    	encoding=null;
        raw=empty;
        scriptProtected=ScriptProtected.UNDEFINED;
        super.release(pc);
    }

    @Override
	public void setScriptProtecting(ApplicationContext ac,boolean scriptProtected) {
		
		int _scriptProtected = scriptProtected?ScriptProtected.YES:ScriptProtected.NO;
		//print.out(isInitalized()+"x"+(_scriptProtected+"!="+this.scriptProtected));
		if(isInitalized() && _scriptProtected!=this.scriptProtected) {
			fillDecodedEL(raw,encoding,scriptProtected,ac.getSameFieldAsArray(SCOPE_URL));
		}
		this.scriptProtected=_scriptProtected;
	}
	

	@Override
	public boolean isScriptProtected() {
		return scriptProtected==ScriptProtected.YES;
	}

	/**
	 * @return the raw
	 */
	public URLItem[] getRaw() {
		return raw;
	}
}