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

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

import org.springframework.stereotype.Component;

import at.gv.egiz.eaaf.core.api.idp.process.ExecutionContext;
import at.gv.egiz.eaaf.core.exceptions.TaskExecutionException;
import at.gv.egiz.eaaf.core.impl.idp.auth.modules.AbstractAuthServletTask;
import at.gv.egiz.eid4u.api.attributes.Definitions;
import at.gv.egovernment.moa.id.protocols.eidas.EIDASData;
import at.gv.egovernment.moa.logging.Logger;
import eu.eidas.auth.commons.attribute.ImmutableAttributeMap;
import eu.eidas.auth.commons.attribute.ImmutableAttributeMap.Builder;

@Component("CollectAddtionalAttributesTask")
public class CollectAddtionalAttributesTask extends AbstractAuthServletTask {

	@Override
	public void execute(ExecutionContext arg0, HttpServletRequest arg1, HttpServletResponse arg2)
			throws TaskExecutionException {
		try{
			if (pendingReq instanceof EIDASData) {
				EIDASData eidasReq = (EIDASData) pendingReq;
				Logger.debug("Find eIDAS Auth. Req. Check if eID4U attributes are requested ...");
		
				//select all eID4U attributes from requested attributes
				Builder reqEid4uAttrListBuilder = ImmutableAttributeMap.builder();
				ImmutableAttributeMap reqAttrList = eidasReq.getEidasRequestedAttributes();
				for (String el : Definitions.EID4UATTRIBUTEELIST) {
					if(reqAttrList.getAttributeValuesByNameUri(el) == null) {
						Logger.debug("Find eID4U attr: " + el);
						reqEid4uAttrListBuilder.put(reqAttrList.getDefinitionByNameUri(el));
						
					}
				}
				
				//collect eID4U attributes, if some attributes are selected before
				ImmutableAttributeMap reqEid4uAttrList = reqEid4uAttrListBuilder.build();
				if (reqEid4uAttrList != null && reqEid4uAttrList.size() > 0) {
					Logger.info("Starting eID4U attribute collection process ... ");
					//TODO: implement collection process
					
					
					
				} else
					Logger.debug("No eID4U attributes found. Skip eID4U attribute collection");
				
			} else
				Logger.debug("No eIDAS Request found. Skip eID4U attribute collection");
			
		} catch (Exception e) {
			Logger.error("IdentityLink generation for foreign person FAILED.", e);
			throw new TaskExecutionException(pendingReq, "IdentityLink generation for foreign person FAILED.", e);
			
		}
		
	}

}