/*
 * Copyright 2014 Federal Chancellery Austria
 * MOA-ID has been developed in a cooperation between BRZ, the Federal
 * Chancellery Austria - ICT staff unit, and Graz University of Technology.
 *
 * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
 * the European Commission - subsequent versions of the EUPL (the "Licence");
 * You may not use this work except in compliance with the Licence.
 * You may obtain a copy of the Licence at:
 * http://www.osor.eu/eupl/
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the Licence is distributed on an "AS IS" basis,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Licence for the specific language governing permissions and
 * limitations under the Licence.
 *
 * This product combines work with different licenses. See the "NOTICE" text
 * file for details on the various modules and licenses.
 * The "NOTICE" text file is part of the distribution. Any derivative works
 * that you distribute must include a readable copy of the "NOTICE" text file.
 */
package at.gv.egovernment.moa.id.auth.modules.internal.tasks;

import java.util.Set;

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

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import at.gv.egovernment.moa.id.auth.exception.MOAIDException;
import at.gv.egovernment.moa.id.auth.modules.AbstractAuthServletTask;
import at.gv.egovernment.moa.id.auth.modules.TaskExecutionException;
import at.gv.egovernment.moa.id.auth.modules.registration.ModuleRegistration;
import at.gv.egovernment.moa.id.moduls.RequestImpl;
import at.gv.egovernment.moa.id.process.ExecutionContextImpl;
import at.gv.egovernment.moa.id.process.ProcessEngine;
import at.gv.egovernment.moa.id.process.api.ExecutionContext;
import at.gv.egovernment.moa.logging.Logger;

/**
 * @author tlenz
 *
 */
@Component("RestartAuthProzessManagement")
public class RestartAuthProzessManagement  extends AbstractAuthServletTask {

	@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));
				
			}
			
			Logger.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) {
				Logger.warn("No suitable authentication process found for SessionID " + pendingReq.getRequestID());
				throw new MOAIDException("process.02", new Object[] { pendingReq.getRequestID() });
			}			
			
			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 (MOAIDException e) {
				Logger.error("Database Error! MOASession is not stored!");
				throw new MOAIDException("init.04", new Object[] { pendingReq.getRequestID() });
				
			}
			
			Logger.info("Restart process-engine with auth.process:" + processDefinitionId);
			
			// start process
			processEngine.start(pendingReq);
			
			
		} catch (MOAIDException e) {
			throw new TaskExecutionException(pendingReq, e.getMessage(), e);
			
		} catch (Exception e) {
			Logger.warn("RestartAuthProzessManagement has an internal error", e);
			throw new TaskExecutionException(pendingReq, e.getMessage(), e);
			
		}			
		
	}

}