package at.gv.egovernment.moa.id.auth.modules.eidas;

import java.io.IOException;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

import at.gv.egiz.eaaf.core.impl.idp.controller.AbstractProcessEngineSignalController;
import at.gv.egovernment.moa.id.protocols.oauth20.OAuth20Constants;
import at.gv.egovernment.moa.id.util.CookieUtils;
import at.gv.egovernment.moa.logging.Logger;
import at.gv.egovernment.moa.util.MiscUtil;

@Controller
public class eID4UAPSignalServlet extends AbstractProcessEngineSignalController {

	public eID4UAPSignalServlet() {
		Logger.debug("Registering servlet " + getClass().getName() + 
				" with mappings '"+ eID4UConstants.HTTP_ENDPOINT_AP_CONSENT_RETURN + "'.");
		
	}
	
	@RequestMapping(value = {eID4UConstants.HTTP_ENDPOINT_AP_CONSENT_RETURN }, 
					method = {RequestMethod.POST, RequestMethod.GET})
	public void performCitizenCardAuthentication(HttpServletRequest req, HttpServletResponse resp) throws IOException {
		signalProcessManagement(req, resp);
	}

	@Override
	/**
	 * Protocol specific implementation to get the pending-requestID 
	 * from http request object
	 * 
	 * @param request The http Servlet-Request object
	 * @return The Pending-request id 
	 * 	
	 */
	public String getPendingRequestId(HttpServletRequest request) {
		String pendigReqId = super.getPendingRequestId(request);
		
		if (MiscUtil.isEmpty(pendigReqId)) {
			Logger.trace("No 'pendingReqID', seach for 'state' parameter in eID4U use-case ... ");			
			pendigReqId = request.getParameter(OAuth20Constants.PARAM_STATE);			
			if (MiscUtil.isEmpty(pendigReqId)) {						
				Logger.trace("No 'pendingReqID', seach HTTP-Cookie in eID4U use-case ... ");
				pendigReqId = CookieUtils.getValueFromCookie(request, eID4UConstants.HTTP_TRANSACTION_COOKIE_NAME);
				if (MiscUtil.isEmpty(pendigReqId))
					Logger.info("NO eID4U cookie or 'state' parameter with pendingReqId.");
				
			}
		}
		
		return pendigReqId;
		
	}
	
}