/**
 * Copyright (c) 2015, Lucee Assosication Switzerland. 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;

import lucee.commons.lang.ExceptionUtil;
import lucee.runtime.dump.DumpUtil;
import lucee.runtime.dump.DumpWriter;
import lucee.runtime.exp.ApplicationException;
import lucee.runtime.exp.PageException;
import lucee.runtime.net.http.ReqRspUtil;
import lucee.runtime.op.Caster;
import lucee.runtime.type.util.KeyConstants;

/**
 * A Page that can produce Components
 */
public abstract class InterfacePageImpl extends InterfacePage {
	
	@Override
	public Object call(PageContext pc) throws PageException {
        try {
            pc.setSilent();
            InterfaceImpl interf = null;
            try {
                interf = newInstance(pc,getPageSource().getComponentName(),false);// TODO was only getComponentName before, is that change ok?
            }
            finally {
                pc.unsetSilent();
            }
            
			String qs=ReqRspUtil.getQueryString(pc.getHttpServletRequest());
            if(pc.getBasePageSource()==this.getPageSource() && pc.getConfig().debug())
            	pc.getDebugger().setOutput(false);
            boolean isPost=pc. getHttpServletRequest().getMethod().equalsIgnoreCase("POST");
            
            // POST
            if(isPost) {
            	// Soap
            	if(ComponentPageImpl.isSoap(pc)) 
            		throw new ApplicationException("can not instantiate interface ["+getPageSource().getComponentName()+"] as a component");
            }
            // GET
            else if(qs!=null && qs.trim().equalsIgnoreCase("wsdl")) 
                	throw new ApplicationException("can not instantiate interface ["+getPageSource().getComponentName()+"] as a component");	
            
            // WDDX
            if(pc.urlFormScope().containsKey(KeyConstants._method)) 
            	throw new ApplicationException("can not instantiate interface ["+getPageSource().getComponentName()+"] as a component");
            
            // invoking via include
            if(pc.getTemplatePath().size()>1) {
            	throw new ApplicationException("can not invoke interface ["+getPageSource().getComponentName()+"] as a page");
            }
            
			// DUMP
			//TODO component.setAccess(pc,Component.ACCESS_PUBLIC);
			String cdf = pc.getConfig().getComponentDumpTemplate();
			if(cdf!=null && cdf.trim().length()>0) {
			    pc.variablesScope().set(KeyConstants._component,interf);
			    pc.doInclude(cdf,false);
			}
			else pc.write(pc.getConfig().getDefaultDumpWriter(DumpWriter.DEFAULT_RICH).toString(pc,interf.toDumpData(pc, 9999,DumpUtil.toDumpProperties()),true));
			
		}
		catch(Throwable t) {
			ExceptionUtil.rethrowIfNecessary(t);
			throw Caster.toPageException(t);//Exception Handler.castAnd Stack(t, this, pc);
		}
		return null;
	}
	/**
	 * default implementation of the static constructor, that does nothing
	 */
	public void staticConstructor(PageContext pagecontext, ComponentImpl cfc){
		// do nothing
	}
	
    public abstract void initInterface(InterfaceImpl i) 
    	throws PageException;

	public abstract InterfaceImpl newInstance(PageContext pc, String callPath, boolean isRealPath)
		throws lucee.runtime.exp.PageException;

}