/*******************************************************************************
 *******************************************************************************/
package at.gv.egiz.eaaf.core.impl.idp.controller.tasks;

import java.util.Set;

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

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import at.gv.egiz.eaaf.core.api.idp.process.ExecutionContext;
import at.gv.egiz.eaaf.core.api.idp.process.ProcessEngine;
import at.gv.egiz.eaaf.core.exceptions.EAAFException;
import at.gv.egiz.eaaf.core.exceptions.TaskExecutionException;
import at.gv.egiz.eaaf.core.impl.idp.auth.modules.AbstractAuthServletTask;
import at.gv.egiz.eaaf.core.impl.idp.auth.modules.ModuleRegistration;
import at.gv.egiz.eaaf.core.impl.idp.controller.protocols.RequestImpl;
import at.gv.egiz.eaaf.core.impl.idp.process.ExecutionContextImpl;

/**
 * @author tlenz
 *
 */
@Component("RestartAuthProzessManagement")
public class RestartAuthProzessManagement  extends AbstractAuthServletTask {
	private static final Logger log = LoggerFactory.getLogger(RestartAuthProzessManagement.class);
	
	@Autowired ProcessEngine processEngine;
	
	/* (non-Javadoc)
	 * @see at.gv.egovernment.moa.id.process.springweb.MoaIdTask#execute(at.gv.egovernment.moa.id.process.api.ExecutionContext, javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
	 */
	@Override
	public void execute(ExecutionContext executionContext, HttpServletRequest request, HttpServletResponse response)
			throws TaskExecutionException {
		try {			
			//create a new execution context and copy all elements to new context
			ExecutionContext newec = new ExecutionContextImpl(); 
			Set<String> entries = executionContext.keySet();
			for (String key : entries) {
				newec.put(key, executionContext.get(key));
				
			}
			
			log.debug("Select new auth.-process and restart restart process-engine ... ");
			
			// select and create new process instance
			String processDefinitionId = ModuleRegistration.getInstance().selectProcess(newec);
			if (processDefinitionId == null) {
				log.warn("No suitable authentication process found for SessionID " + pendingReq.getPendingRequestId());
				throw new EAAFException("process.02", new Object[] { pendingReq.getPendingRequestId()},
				"No suitable authentication process found for SessionID " + pendingReq);
			}			
			
			String processInstanceId = processEngine.createProcessInstance(processDefinitionId, newec);

			// keep process instance id in moa session
			((RequestImpl)pendingReq).setProcessInstanceId(processInstanceId);

			// make sure pending request has been persisted before running the process
			try {
				requestStoreage.storePendingRequest(pendingReq);
				
			} catch (EAAFException e) {
				log.error("Database Error! MOASession is not stored!");
				throw new EAAFException("init.04", new Object[] { pendingReq.getPendingRequestId() },
						"Database Error! MOASession is not stored!");
				
			}
			
			log.info("Restart process-engine with auth.process:" + processDefinitionId);
			
			// start process
			processEngine.start(pendingReq);
			
			
		} catch (EAAFException e) {
			throw new TaskExecutionException(pendingReq, e.getMessage(), e);
			
		} catch (Exception e) {
			log.warn("RestartAuthProzessManagement has an internal error", e);
			throw new TaskExecutionException(pendingReq, e.getMessage(), e);
			
		}			
		
	}

}