/*******************************************************************************
 *******************************************************************************/
package at.gv.egiz.eaaf.core.impl.idp.auth.data;

import java.util.Date;
import java.util.HashMap;
import java.util.Map;

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

import at.gv.egiz.eaaf.core.api.data.EAAFConstants;
import at.gv.egiz.eaaf.core.api.idp.EAAFAuthProcessDataConstants;
import at.gv.egiz.eaaf.core.api.idp.auth.data.IAuthProcessDataContainer;
import at.gv.egiz.eaaf.core.api.idp.auth.data.IIdentityLink;
import at.gv.egiz.eaaf.core.exceptions.EAAFStorageException;

public class AuthProcessDataWrapper implements IAuthProcessDataContainer, EAAFAuthProcessDataConstants {
	private static final Logger log = LoggerFactory.getLogger(AuthProcessDataWrapper.class);
	
	protected Map<String, Object> authProcessData;
	
	public AuthProcessDataWrapper(Map<String, Object> authProcessData) {
		this.authProcessData = authProcessData;
		
	}
	
	/* (non-Javadoc)
	 * @see at.gv.egovernment.moa.id.auth.data.IAuthenticationSession#getIssueInstant()
	 */
	@Override
	public String getIssueInstant() {
		return wrapStringObject(VALUE_ISSUEINSTANT, null, String.class);
	}

	/* (non-Javadoc)
	 * @see at.gv.egovernment.moa.id.auth.data.IAuthenticationSession#setIssueInstant(java.lang.String)
	 */
	@Override
	public void setIssueInstant(String issueInstant) {
		authProcessData.put(VALUE_ISSUEINSTANT, issueInstant);

	}
	
	/* (non-Javadoc)
	 * @see at.gv.egovernment.moa.id.auth.data.IAuthenticationSession#isAuthenticated()
	 */
	@Override
	public boolean isAuthenticated() {
		return wrapStringObject(FLAG_IS_AUTHENTICATED, false, Boolean.class);

	}
	

	/* (non-Javadoc)
	 * @see at.gv.egovernment.moa.id.auth.data.IAuthenticationSession#setAuthenticated(boolean)
	 */
	@Override
	public void setAuthenticated(boolean authenticated) {
		authProcessData.put(FLAG_IS_AUTHENTICATED, authenticated);

	}
	
	/* (non-Javadoc)
	 * @see at.gv.egovernment.moa.id.auth.data.IAuthenticationSession#getIdentityLink()
	 */
	@Override
	public IIdentityLink getIdentityLink() {
		return wrapStringObject(VALUE_IDENTITYLINK, null, IIdentityLink.class);
		
	}

	
	/* (non-Javadoc)
	 * @see at.gv.egovernment.moa.id.auth.data.IAuthenticationSession#setIdentityLink(at.gv.egovernment.moa.id.auth.data.IdentityLink)
	 */
	@Override
	public void setIdentityLink(IIdentityLink identityLink) {
		authProcessData.put(VALUE_IDENTITYLINK, identityLink);

	}

	/* (non-Javadoc)
	 * @see at.gv.egovernment.moa.id.auth.data.IAuthenticationSession#isMandateUsed()
	 */
	@Override
	public boolean isMandateUsed() {
		return wrapStringObject(FLAG_USE_MANDATE, false, Boolean.class);
	}
	
	/* (non-Javadoc)
	 * @see at.gv.egovernment.moa.id.auth.data.IAuthenticationSession#setUseMandates(boolean)
	 */
	@Override
	public void setUseMandates(boolean useMandates) {
		authProcessData.put(FLAG_USE_MANDATE, useMandates);

	}
	
	/* (non-Javadoc)
	 * @see at.gv.egovernment.moa.id.auth.data.IAuthenticationSession#getQAALevel()
	 */
	@Override
	public String getQAALevel() {
		return wrapStringObject(VALUE_QAALEVEL, null, String.class);
	}

	/* (non-Javadoc)
	 * @see at.gv.egovernment.moa.id.auth.data.IAuthenticationSession#setQAALevel(java.lang.String)
	 */
	@Override
	public void setQAALevel(String qAALevel) {
		authProcessData.put(VALUE_QAALEVEL, qAALevel);

	}
	
	/* (non-Javadoc)
	 * @see at.gv.egovernment.moa.id.auth.data.IAuthenticationSession#isForeigner()
	 */
	@Override
	public boolean isForeigner() {
		return wrapStringObject(FLAG_IS_FOREIGNER, false, Boolean.class);
	}

	/* (non-Javadoc)
	 * @see at.gv.egovernment.moa.id.auth.data.IAuthenticationSession#setForeigner(boolean)
	 */
	@Override
	public void setForeigner(boolean isForeigner) {
		authProcessData.put(FLAG_IS_FOREIGNER, isForeigner);

	}
	
	/* (non-Javadoc)
	 * @see at.gv.egovernment.moa.id.auth.data.IAuthenticationSession#isOW()
	 */
	@Override
	public boolean isOW() {
		return wrapStringObject(FLAG_IS_ORGANWALTER, false, Boolean.class);
	}

	/* (non-Javadoc)
	 * @see at.gv.egovernment.moa.id.auth.data.IAuthenticationSession#setOW(boolean)
	 */
	@Override
	public void setOW(boolean isOW) {
		authProcessData.put(FLAG_IS_ORGANWALTER, isOW);

	}
	
	/* (non-Javadoc)
	 * @see at.gv.egovernment.moa.id.auth.data.IAuthenticationSession#getSessionCreated()
	 */
	@Override
	public Date getSessionCreated() {
		return wrapStringObject(EAAFConstants.AUTH_DATA_CREATED, null, Date.class);
	}

	/* (non-Javadoc)
	 * @see at.gv.egovernment.moa.id.auth.data.IAuthenticationSession#getGenericSessionDataStorage()
	 */
	@Override
	public Map<String, Object> getGenericSessionDataStorage() {
		Map<String, Object> result = new HashMap<String, Object>();		
		for (String el : authProcessData.keySet()) {
			if (el.startsWith(GENERIC_PREFIX))
				result.put(el.substring(GENERIC_PREFIX.length()), authProcessData.get(el));
			
		}
		
		return result;
	}

	/* (non-Javadoc)
	 * @see at.gv.egovernment.moa.id.auth.data.IAuthenticationSession#getGenericDataFromSession(java.lang.String)
	 */
	@Override
	public Object getGenericDataFromSession(String key) {
		return authProcessData.get(GENERIC_PREFIX + key); 
	}

	/* (non-Javadoc)
	 * @see at.gv.egovernment.moa.id.auth.data.IAuthenticationSession#getGenericDataFromSession(java.lang.String, java.lang.Class)
	 */
	@Override
	public <T> T getGenericDataFromSession(String key, Class<T> clazz) {
		return wrapStringObject(GENERIC_PREFIX + key, null, clazz);
	}

	/* (non-Javadoc)
	 * @see at.gv.egovernment.moa.id.auth.data.IAuthenticationSession#setGenericDataToSession(java.lang.String, java.lang.Object)
	 */
	@Override
	public void setGenericDataToSession(String key, Object object) throws EAAFStorageException {
		authProcessData.put(GENERIC_PREFIX + key, object);

	}
	
	protected <T> T wrapStringObject(String key, Object defaultValue, Class<T> clazz) {		
		if (StringUtils.isNotEmpty(key)) {
			Object obj = authProcessData.get(key);
			if (obj != null && clazz.isInstance(obj))
				return (T) obj;
		}
		
		if (defaultValue == null)
			return null;
		
		else if (clazz.isInstance(defaultValue))
			return (T)defaultValue;
			
		else {
			log.error("DefaultValue: " + defaultValue.getClass().getName() + " is not of Type:" + clazz.getName());
			throw new IllegalStateException("DefaultValue: " + defaultValue.getClass().getName() + " is not of Type:" + clazz.getName());
				
		}		
	}
}