/**
    * Copyright 2004-2012 The Kuali Foundation
    *
    * Licensed under the Educational Community License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    * http://www.opensource.org/licenses/ecl2.php
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.kuali.hr.job.validation;
  
  import java.util.List;
  
  import org.kuali.hr.job.Job;
  import org.kuali.hr.time.assignment.Assignment;
  import org.kuali.hr.time.service.base.TkServiceLocator;
  import org.kuali.hr.time.util.TKUtils;
  import org.kuali.hr.time.util.ValidationUtils;
  import org.kuali.rice.kns.document.MaintenanceDocument;
  import org.kuali.rice.kns.maintenance.rules.MaintenanceDocumentRuleBase;
  import org.kuali.rice.krad.bo.PersistableBusinessObject;
  
  public class JobValidation extends MaintenanceDocumentRuleBase {
  
  	private boolean validatePrincipalId(Job job) {
  		if (job.getPrincipalId() != null
  				&& !ValidationUtils.validatePrincipalId(job.getPrincipalId())) {
  			this.putFieldError("principalId", "error.existence",
  					"principalId '" + job.getPrincipalId() + "'");
  			return false;
  		} else {
  			return true;
  		}
  	}
  
  	private boolean validateJobNumber(Job job) {
  		if (job.getJobNumber() != null) {
  			Job jobObj = TkServiceLocator.getJobService().getJob(
  					job.getPrincipalId(), job.getJobNumber(),
  					job.getEffectiveDate(), false);
  			if (jobObj != null) {
  				String[] parameters = new String[2];
  				parameters[0] = job.getJobNumber().toString();
  				parameters[1] = job.getPrincipalId();
  				this.putFieldError("jobNumber",
  						"principal.jobnumber.already.exist", parameters);
  				return false;
  			}
  		}
  		return true;
  	}
  
  	protected boolean validateDepartment(Job job) {
  		if (job.getDept() != null
  				&& !ValidationUtils.validateDepartment(job.getDept(), job
  						.getEffectiveDate())) {
  			this.putFieldError("dept", "error.existence", "department '"
  					+ job.getDept() + "'");
  			return false;
  		} else {
  			return true;
  		}
  	}
  
  	boolean validateSalGroup(Job job) {
  		if (!ValidationUtils.validateSalGroup(job.getHrSalGroup(), job
  				.getEffectiveDate())) {
  			this.putFieldError("hrSalGroup", "error.existence", "Salgroup '"
  					+ job.getHrSalGroup() + "'");
  			return false;
  		} else {
  			return true;
  		}
  	}
  
  	boolean validateLocation(Job job) {
  		if (job.getLocation() != null
  				&& !ValidationUtils.validateLocation(job.getLocation(), null)) {
  			this.putFieldError("location", "error.existence", "location '"
  					+ job.getLocation() + "'");
  			return false;
  		} else {
  			return true;
  		}
  	}
  
  	boolean validatePayType(Job job) {
  		if (job.getHrPayType() != null
  				&& !ValidationUtils.validatePayType(job.getHrPayType(), job
  						.getEffectiveDate())) {
  			this.putFieldError("hrPayType", "error.existence", "pay type '"
  					+ job.getHrPayType() + "'");
  			return false;
 		} else {
 			return true;
 		}
 	}
 
 	boolean validatePayGrade(Job job) {
 		if (job.getPayGrade() != null
 				&& !ValidationUtils.validatePayGrade(job.getPayGrade(), job
 						.getEffectiveDate())) {
 			this.putFieldError("payGrade", "error.existence", "pay grade '"
 					+ job.getPayGrade() + "'");
 			return false;
 		} else {
 			return true;
 		}
 	}
 	
 	boolean validatePrimaryIndicator(Job job, Job oldJob) {
 		boolean valid = true;
 		if (job.getPrimaryIndicator()) {
 			//do not block editing of previous primary job
 			if(oldJob!=null && oldJob.getPrimaryIndicator()!=null && oldJob.getPrimaryIndicator()){
 				return valid;
 			}
 			Job existingJob = TkServiceLocator.getJobService().getPrimaryJob(job.getPrincipalId(), TKUtils.getCurrentDate());
 			if (existingJob != null && existingJob.getPrimaryIndicator()) {
 				this.putFieldError("primaryIndicator", "error.primary.job.already.exist", job.getPrincipalId());
 				valid = false;
 			}
 		}
 		return valid;
 	}
 	
 	// KPME-1129 Kagata
 	// This method determines if the job can be inactivated or not
 	boolean validateInactivation(Job job){
 		
 		// Get a list of active assignments based on principalId, jobNumber and current date.
 		// If the list is not null, there are active assignments and the job can't be inactivated, so return false, otherwise true
 		if(!job.isActive()) {
 			//this has to use the effective date of the job passed in
 			List<Assignment> aList = TkServiceLocator.getAssignmentService().getActiveAssignmentsForJob(job.getPrincipalId(), job.getJobNumber(), job.getEffectiveDate());
 			if (aList != null && aList.size() > 0) {
 				// error.job.inactivate=Can not inactivate job number {0}.  It is used in active assignments.
 				this.putFieldError("active", "error.job.inactivate", job.getJobNumber().toString());
 				return false;
 			} 
 		}
 
 		return true;
 	}
 
 	@Override
 	protected boolean processCustomRouteDocumentBusinessRules(
 			MaintenanceDocument document) {
 		boolean valid = false;
 		LOG.debug("entering custom validation for Job");
 		PersistableBusinessObject pbo = (PersistableBusinessObject) this.getNewBo();
 		if (pbo instanceof Job) {
 			Job job = (Job) pbo;
 			Job oldJob = (Job) this.getOldBo();
 			if (job != null) {
 				valid = true;
 				valid &= this.validatePrincipalId(job);
 				if(!document.isOldBusinessObjectInDocument()){
 					valid &= this.validateJobNumber(job);
 				}
 				valid &= this.validateDepartment(job);
 				valid &= this.validateSalGroup(job);
 				valid &= this.validateLocation(job);
 				valid &= this.validatePayType(job);
 				valid &= this.validatePayGrade(job);
 				valid &= this.validatePrimaryIndicator(job, oldJob);
 				// KPME-1129 Kagata
 				valid &= this.validateInactivation(job);
 			}
 		}
 		return valid;
 	}
 }