package com.foundation.web;

import com.common.debug.Debug;
import com.common.util.IHashMap;
import com.common.util.LiteHashMap;
import com.foundation.web.WebApplication.PathSubstitution;
import com.foundation.web.interfaces.IConnectionContext;
import com.foundation.web.interfaces.IRequest;
import com.foundation.web.interfaces.IResponse;
import com.foundation.web.interfaces.ISession;

public class DefaultResourceRequestHandler extends ResourceRequestHandler {
	private IHashMap nameSubstitutionMap = new LiteHashMap(10);
	private IHashMap pathSubstitutionMap = new LiteHashMap(10);
/**
 * DefaultResourceRequestHandler constructor.
 */
public DefaultResourceRequestHandler() {
}//DefaultResourceRequestHandler()//
/* (non-Javadoc)
 * @see com.foundation.web.ResourceRequestHandler#processWebSocketUpgrade(com.foundation.web.interfaces.IRequest, com.foundation.web.interfaces.IResponse, com.foundation.web.interfaces.ISession, boolean, boolean, com.foundation.web.interfaces.IConnectionContext, java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String)
 */
public void processWebSocketUpgrade(IRequest request, IResponse response, ISession session, boolean isSecure, boolean clientHadBadSession, IConnectionContext connectionContext, String connection, String secWebSocketKey, String secWebSocketProtocol, String secWebSocketVersion, String origin) {
	response.setError(IResponse.ERROR_UPGRADE_REJECTED);
}//processWebSocketUpgrade()//
/**
 * Adds a resource name subtitution mapping where the old resource name will be replaced by the new resource name automatically prior to the request being processed.
 * @param oldName The old resource name.
 * @param newName The new resource name.
 */
public void addResourceNameSubstitution(String oldName, String newName) {
	nameSubstitutionMap.put(oldName, newName);
}//addResourceNameSubstitution()//
/**
 * Adds a path subtitution mapping where the old path will be replaced by the new path automatically prior to the request being processed.
 * @param oldPath The old resource name.  eg: "/"
 * @param newPath The new resource name.  eg: "/subdir/index.html"
 * @param forward Whether the substitution should constitute a forward (where the client is told of the new path) versus a redirect.
 */
public void addPathSubstitution(String oldPath, String newPath, boolean forward) {
	pathSubstitutionMap.put(oldPath, new PathSubstitution(newPath, forward));
}//addPathSubstitution()//
/* (non-Javadoc)
 * @see com.foundation.web.ResourceRequestHandler#performPathSubstitution(java.lang.String, com.foundation.web.interfaces.IRequest, com.foundation.web.interfaces.IResponse)
 */
protected String performPathSubstitution(String path, IRequest request, IResponse response) {
	PathSubstitution substitutePath = (PathSubstitution) pathSubstitutionMap.get(path);
	
	//First attempt to find a substitute path, then check to see if there is a substitute resource.//
	if(substitutePath != null) {
		if(substitutePath.forward()) {
			//Update the Browser's URL if a substitute is found so that additional requests that are relative to the primary resource's path don't fail spectacularly.//
			response.setForwardUri(substitutePath.getPath() + (request.getParameterString() == null ? "" : request.getParameterString()));
			path = null;
		}//if//
		else {
			path = substitutePath.getPath();
		}//else//
	}//if//
	else {
		int lastForwardSlash = path.lastIndexOf('/');
		int lastBackSlash = path.lastIndexOf('\\');
		int lastSlash = Math.max(lastForwardSlash, lastBackSlash);
		//boolean hasDot = path.indexOf('.', lastSlash) != -1;  //Note: This requires all accessed resources to have a dot in the name!  Is this desired?  Without this we can't tell if this is supposed to use the default resource in the directory though.
		//String resourceName = hasDot && lastSlash + 2 != path.length() ? path.substring(lastSlash + 1) : "";
		String resourceName = path.substring(lastSlash + 1);
		String newResourceName = (String) nameSubstitutionMap.get(resourceName);
		
		if(newResourceName != null) {
			if(resourceName.length() > 0) {
				path = path.substring(0, lastSlash + 1) + newResourceName;
			}//if//
			else {
				path += newResourceName;
			}//else//
		}//if//
	}//else//
	
	return path;
}//performPathSubstitution()//
/* (non-Javadoc)
 * @see com.foundation.web.ResourceRequestHandler#getMaxMessageSize(com.foundation.web.interfaces.IRequest, com.foundation.web.SessionData, com.foundation.web.SecureSessionData)
 */
public int getMaxMessageSize(IRequest request, SessionData sessionData, SecureSessionData secureSessionData) {
	return 0;
}//getMaxMessageSize()//
/* (non-Javadoc)
 * @see com.foundation.web.ResourceRequestHandler#processRequest(java.lang.String, com.foundation.web.interfaces.IRequest, com.foundation.web.interfaces.IResponse, com.foundation.web.SessionData, com.foundation.web.SecureSessionData, boolean, com.foundation.web.interfaces.IConnectionContext)
 */
public void processRequest(String requestPath, IRequest request, IResponse response, SessionData sessionData, SecureSessionData secureSessionData, boolean isSecure, IConnectionContext connectionContext) {
	try {
		int extensionDecimal = requestPath.lastIndexOf('.');
		boolean cacheIndefinately = false;
		
		//Set images to cache indefinately.//
		if(extensionDecimal != -1) {
			String extension = requestPath.substring(extensionDecimal + 1).toLowerCase();
			
			if(extension.equals("gif") || extension.equals("png") || extension.equals("jpg") || extension.equals("jpeg")) {
				cacheIndefinately = true;
			}//if//
		}//if//
		
		FileContent.setContentResource(response, requestPath, request, request.getCacheDate(), null, cacheIndefinately);
	}//try//
	catch(Throwable e) {
		Debug.log(e);
	}//catch//
}//processRequest()//
/* (non-Javadoc)
 * @see com.foundation.web.ResourceRequestHandler#processRequest(com.foundation.web.IWebRequestHandler, java.lang.String, com.foundation.web.interfaces.IRequest, com.foundation.web.interfaces.IResponse, com.foundation.web.SessionData, com.foundation.web.SecureSessionData, boolean, com.foundation.web.interfaces.IConnectionContext)
 */
public void processRequest(IWebRequestHandler handler, String requestPath, IRequest request, IResponse response, SessionData sessionData, SecureSessionData secureSessionData, boolean isSecure, IConnectionContext connectionContext) {
	try {
		handler.processRequest(request, response, sessionData, secureSessionData);
	}//try//
	catch(Throwable e) {
		Debug.log(e);
	}//catch//
}//processRequest()//
}//DefaultResourceRequestHandler//