package at.gv.egiz.eaaf.core.impl.idp.builder.attributes;

import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import at.gv.egiz.eaaf.core.api.idp.IAttributeGenerator;
import at.gv.egiz.eaaf.core.api.idp.IAuthData;
import at.gv.egiz.eaaf.core.api.idp.IEidAuthData;
import at.gv.egiz.eaaf.core.api.idp.IPVPAttributeBuilder;
import at.gv.egiz.eaaf.core.api.idp.ISPConfiguration;
import at.gv.egiz.eaaf.core.exceptions.AttributeBuilderException;
import at.gv.egiz.eaaf.core.exceptions.UnavailableAttributeException;

@PVPMETADATA
public class EIDCcsURL implements IPVPAttributeBuilder {
	private static final Logger log = LoggerFactory.getLogger(EID_CCS_URL_NAME);
	
	@Override
	public String getName() {
		return EID_CCS_URL_NAME;
	}

	@Override
	public <ATT> ATT build(ISPConfiguration oaParam, IAuthData authData,
			IAttributeGenerator<ATT> g) throws AttributeBuilderException {
		if (authData instanceof IEidAuthData) {
			final String bkuurl = ((IEidAuthData)authData).getVdaEndPointUrl();
			if (StringUtils.isNotEmpty(bkuurl))
				return g.buildStringAttribute(EID_CCS_URL_FRIENDLY_NAME, EID_CCS_URL_NAME, bkuurl);
			
				
		} else
			log.info(EID_CCS_URL_FRIENDLY_NAME + " is only available in MOA-ID context");
		
		throw new UnavailableAttributeException(EID_CCS_URL_NAME);
	}

	@Override
	public <ATT> ATT buildEmpty(IAttributeGenerator<ATT> g) {
		return g.buildEmptyAttribute(EID_CCS_URL_FRIENDLY_NAME, EID_CCS_URL_NAME);
	}

}