import javax.xml.namespace.QName;

import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.appiancorp.common.xml.JaxbConversionException;
import com.appiancorp.common.xml.JaxbConverter;
import com.appiancorp.services.ServiceContext;
import com.appiancorp.services.ServiceContextFactory;
import com.appiancorp.suiteapi.cfg.ConfigurationLoader;
import com.appiancorp.suiteapi.common.ServiceLocator;
import com.appiancorp.suiteapi.common.exceptions.InvalidPriorityException;
import com.appiancorp.suiteapi.common.exceptions.InvalidProcessModelException;
import com.appiancorp.suiteapi.common.exceptions.InvalidStateException;
import com.appiancorp.suiteapi.common.exceptions.InvalidUserException;
import com.appiancorp.suiteapi.common.exceptions.InvalidVersionException;
import com.appiancorp.suiteapi.common.exceptions.PrivilegeException;
import com.appiancorp.suiteapi.common.exceptions.StorageLimitException;
import com.appiancorp.suiteapi.process.ProcessDesignService;
import com.appiancorp.suiteapi.process.ProcessExecutionService;
import com.appiancorp.suiteapi.process.ProcessStartConfig;
import com.appiancorp.suiteapi.process.ProcessVariable;
import com.appiancorp.suiteapi.process.ProcessVariableInstance;
import com.appiancorp.suiteapi.process.exceptions.InvalidProcessException;
import com.appiancorp.suiteapi.process.exceptions.InvalidProcessVariableNameException;
import com.appiancorp.suiteapi.type.TypeService;



public class AppianHandler {


	ServiceContext adminContext;
	ProcessDesignService pds;
	TypeService ts;
	ProcessExecutionService pes;
	Long parameterTypeId = null;		
	Long bulkAddParameterTypeId = null;
	Long pmAssignmentTypeId = null;
	Long sendEmailTypeId = null;
	static Log log = LogFactory.getLog(AppianHandler.class);

	/**
	 * Initialization method, sets up appian connection 
	 * 
	 */
	public void init() {

		CacheConfigLoaderOverride.initializeDefaultCache();
		//adminContext = ServiceLocator.getAdministratorServiceContext();
		
		//ConfigurationLoader.initializeConfigurations();
		adminContext	=	ServiceContextFactory.getAdministratorServiceContext();
		log.info("adminContext: "+adminContext);
		pds = ServiceLocator.getProcessDesignService(adminContext);
		//pes = ServiceLocator.getProcessExecutionService(adminContext);
		ts = ServiceLocator.getTypeService(adminContext);
		parameterTypeId        = ts.getTypeByQualifiedName(new QName("http://appian.domain/dto","AppianProcessObject")).getId();
		log.info(">>Appian Response on AppianProcessObject id as "+parameterTypeId);
		bulkAddParameterTypeId = ts.getTypeByQualifiedName(new QName("http://appian.domain/dto","BulkAddProcessObject")).getId();
		log.info(">>Appian Response on BulkAddProcessObject id as "+bulkAddParameterTypeId);
		pmAssignmentTypeId = ts.getTypeByQualifiedName(new QName("http://appian.domain/dto","PMAssignmentEntity")).getId();
        log.info(">>Appian Response on pmAssignmentTypeId id as "+pmAssignmentTypeId);
        
        sendEmailTypeId = ts.getTypeByQualifiedName(new QName("http://appian.domain/dto","EmailDetail")).getId();
        log.info(">>Appian Response on EmailDetail id as " + sendEmailTypeId);
	}

	/**
	 * Start an appian process 
	 */
	@SuppressWarnings("deprecation")
	public long startProcess(AppianProcessObject po, long pmId, String parameterName){

		

		/* 10-digit fix*/
		populateTextField(po);
		/* fix ends*/
		
		long processID = 0;
		
	
		ProcessVariable[] processParameters = new ProcessVariable[1];
		ProcessVariable parameter = new ProcessVariable();

		parameter.setInstanceType(parameterTypeId);
		parameter.setName(parameterName);
		parameter.setParameter(true);
		try {	
			log.info("short name: " +po.getEntityDetail().getShortName());
			log.info("entity type: " +po.getEntityDetail().getEntityType());
			log.info("alt id: " +po.getEntityDetail().getAltId());
			log.info("entity id: " +po.getEntityDetail().getDatalessKey());
			parameter.setValue(JaxbConverter.toTypedValue(po, parameterTypeId, ts).getValue());

		} catch (JaxbConversionException e) {
			throw new AppianServiceException("AppianHandler - Appian process - JaxbConversion Error: "+e.getMessage(), e);
		}

		processParameters[0] = parameter;
		try {	

			processID = pds.initiateProcess(pmId, new ProcessStartConfig(processParameters));

		} 
		catch (InvalidProcessModelException e) {
			throw new AppianServiceException("AppianHandler - Failed to start Appian process - InvalidProcessModelException: "+e.getMessage(), e);
		} 
		catch (InvalidPriorityException e) {
			throw new AppianServiceException("AppianHandler - Failed to start Appian process - InvalidPriorityException: "+e.getMessage(), e);
		} 
		catch (InvalidVersionException e) {
			throw new AppianServiceException("AppianHandler - Failed to start Appian process - InvalidVersionException: "+e.getMessage(), e);
		} 
		catch (PrivilegeException e) {
			throw new AppianServiceException("AppianHandler - Failed to start Appian process - PrivilegeException: "+e.getMessage(), e);
		} 
		catch (InvalidStateException e) {
			throw new AppianServiceException("AppianHandler - Failed to start Appian process - InvalidStateException: "+e.getMessage(), e);
		} 
		catch (StorageLimitException e) {
			throw new AppianServiceException("AppianHandler - Failed to start Appian process - StorageLimitException: "+e.getMessage(), e);
		} 
		catch (InvalidUserException e) {
			throw new AppianServiceException("AppianHandler - Failed to start Appian process - InvalidUserException: "+e.getMessage(), e);
		} 
		catch (IllegalArgumentException e) {
			throw new AppianServiceException("AppianHandler - Failed to start Appian process - IllegalArgumentException: "+e.getMessage(), e);
		} 
		catch (Exception e) {
			throw new AppianServiceException("AppianHandler - Failed to start Appian process - General Exception: "+e.getMessage(), e);
		}

		return processID;

	}
	
	/**
	 * Update an existing process' details
	 */
	@SuppressWarnings("deprecation")
	public void updateProcessVariables(long processID, AppianProcessObject ec, String parameterName){


		/* 10-digit fix*/
		populateTextField(ec);
		/* fix ends*/
		
		try {
			ProcessVariableInstance pvi;

			pvi = pes.getProcessVariable(processID, parameterName);
		
			pvi.setValue(pvi.getRunningValue());
			
			pvi.setRunningValue(JaxbConverter.toTypedValue(ec, pvi.getInstanceType(), ts).getValue());			
			pes.setProcessVariable(processID, pvi);

		} 
		catch (InvalidProcessException e) {
			throw new AppianServiceException("AppianHandler - Failed to update Appian process variables - InvalidProcessException: "+e.getMessage(), e);
		}
		catch (InvalidProcessVariableNameException e) {
			throw new AppianServiceException("AppianHandler - Failed to update Appian process variables - InvalidProcessVariableNameException: "+e.getMessage(), e);
		} 
		catch (PrivilegeException e) {
			throw new AppianServiceException("AppianHandler - Failed to update Appian process variables - PrivilegeException: "+e.getMessage(), e);
		} catch (JaxbConversionException e) {
			throw new AppianServiceException("AppianHandler - Failed to update Appian process variables - JaxbConversionException: "+e.getMessage(), e);
		}


	}
	
	
	/**
	 * Get an existing process' details
	 */

	@SuppressWarnings("deprecation")
	public AppianProcessObject getProcessVariables(long processID, String parameterName){

		AppianProcessObject ec = new AppianProcessObject();


		ProcessVariableInstance pvi;
		try {

			pvi = pes.getProcessVariable(processID, parameterName);
			pvi.setValue(pvi.getRunningValue());
			ec = JaxbConverter.toObject(pvi, AppianProcessObject.class, ts);


		} catch (InvalidProcessException e) {
			throw new AppianServiceException("AppianHandler - Failed to retrieve Appian process variables - InvalidProcessException: "+e.getMessage(), e);
		} catch (InvalidProcessVariableNameException e) {
			throw new AppianServiceException("AppianHandler - Failed to retrieve Appian process variables - InvalidProcessVariableNameException: "+e.getMessage(), e);
		} catch (PrivilegeException e) {
			throw new AppianServiceException("AppianHandler - Failed to retrieve Appian process variables - PrivilegeException: "+e.getMessage(), e);
		} catch (JaxbConversionException e) {
			throw new AppianServiceException("AppianHandler - Failed to retrieve Appian process variables - JaxbConversionException: "+e.getMessage(), e);
		}

		/* 10-digit fix*/
		populateLongField(ec);
		/* fix ends*/
		return ec;

	}

	public Long getProcessModelId(String pmUUID){
		try {
			return pds.getProcessModelIdByUuid(pmUUID);
		} catch (InvalidProcessModelException e) {
			throw new AppianServiceException("AppianHandler - Failed to retrieve Appian process model Id - InvalidProcessModelException: "+e.getMessage(), e);
		} catch (PrivilegeException e) {
			throw new AppianServiceException("AppianHandler - Failed to update Appian process variables - PrivilegeException: "+e.getMessage(), e);
		}
	}
	
  
    
    

}