/**
    * Copyright 2004-2013 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.kpme.core.assignment;
  
  import java.util.LinkedList;
  import java.util.List;
  
  import org.apache.commons.lang.builder.EqualsBuilder;
  import org.apache.commons.lang.builder.HashCodeBuilder;
  import org.joda.time.LocalDate;
  import org.kuali.kpme.core.api.assignment.AssignmentContract;
  import org.kuali.kpme.core.assignment.account.AssignmentAccount;
  import org.kuali.kpme.core.block.CalendarBlockPermissions;
  import org.kuali.kpme.core.bo.HrBusinessObject;
  import org.kuali.kpme.core.job.Job;
  import org.kuali.kpme.core.service.HrServiceLocator;
  import org.kuali.kpme.core.task.Task;
  import org.kuali.kpme.core.util.HrConstants;
  import org.kuali.kpme.core.util.TKUtils;
  import org.kuali.kpme.core.workarea.WorkArea;
  import org.kuali.rice.kim.api.identity.Person;
  import org.kuali.rice.kim.api.services.KimApiServiceLocator;
  
  import com.google.common.collect.ImmutableList;
  
  public class Assignment extends HrBusinessObject implements AssignmentContract {
  
  	private static final long serialVersionUID = 6347435053054442195L;
  	//KPME-2273/1965 Primary Business Keys List. 
  	public static final ImmutableList<String> EQUAL_TO_FIELDS = new ImmutableList.Builder<String>()
              .add("jobNumber")
              .add("workArea")
              .add("task")
              .add("principalId")
              .build();
  
      public static final ImmutableList<String> CACHE_FLUSH = new ImmutableList.Builder<String>()
              .add(Assignment.CACHE_NAME)
              .add(CalendarBlockPermissions.CACHE_NAME)
              .build();
  	public static final String CACHE_NAME = HrConstants.CacheNamespace.NAMESPACE_PREFIX + "Assignment";
  
  	private String tkAssignmentId;
  	private String principalId;
  	private Long jobNumber;
  	private String hrJobId;
  	private transient Job job;
  	private Long workArea;
  	//private Long tkWorkAreaId;
  	private Long task;
  	private String dept;
  
  	private transient WorkArea workAreaObj;
  	private Boolean history;
      private String assignmentKey;
  
  	private transient Person principal;
  
  	private transient Task taskObj;
  
      private String calGroup;
  
  	private List<AssignmentAccount> assignmentAccounts = new LinkedList<AssignmentAccount>();
  
  	public List<AssignmentAccount> getAssignmentAccounts() {
  		return assignmentAccounts;
  	}
  
  	public void setAssignmentAccounts(List<AssignmentAccount> assignmentAccounts) {
  		this.assignmentAccounts = assignmentAccounts;
  	}
  
  	public String getPrincipalId() {
  		return principalId;
  	}
  
  	public void setPrincipalId(String principalId) {
  		this.principalId = principalId;
  		this.setPrincipal(KimApiServiceLocator.getPersonService().getPerson(this.principalId));
  	}
  
  	public String getName() {
  		if (principal == null) {
          principal = KimApiServiceLocator.getPersonService().getPerson(this.principalId);
  		}
  		return (principal != null) ? principal.getName() : "";
 	}
 
 	public Job getJob() {
 		if(job == null && this.getJobNumber() != null) {
 			this.setJob(HrServiceLocator.getJobService().getJob(this.getPrincipalId(), this.getJobNumber(), this.getEffectiveLocalDate()));
 		}
 		return job;
 	}
 
 	public void setJob(Job job) {
 		this.job = job;
 	}
 
 	public Long getJobNumber() {
 		return jobNumber;
 	}
 
 	public void setJobNumber(Long jobNumber) {
 		this.jobNumber = jobNumber;
 	}
 
 	public String getHrJobId() {
 		return hrJobId;
 	}
 
 	public void setHrJobId(String hrJobId) {
 		this.hrJobId = hrJobId;
 	}
 
 	/**
 	 * Provides us with the text to display to the user for clock actions on
 	 * this assignment.
 	 *
 	 * @return
 	 */
 	public String getClockText() {
 		StringBuilder sb = new StringBuilder("example assignment clock text");
 
 		return sb.toString();
 	}
 
 	public String getTkAssignmentId() {
 		return tkAssignmentId;
 
     }
 	public void setTkAssignmentId(String tkAssignmentId) {
 		this.tkAssignmentId = tkAssignmentId;
 	}
 
 	public void setWorkArea(Long workArea) {
 		this.workArea = workArea;
 	}
 
 	public void setTask(Long task) {
 		this.task = task;
 	}
 
 	public String getDept() {
 		if(this.getJobNumber()!= null) {
 			if(this.getJob() == null || !this.getJobNumber().equals(this.getJob().getJobNumber())) {
 				if(this.getEffectiveDate()!=null){
 					this.setJob(HrServiceLocator.getJobService().getJob(this.getPrincipalId(), this.getJobNumber(), this.getEffectiveLocalDate(), false));
 				}else{
 					this.setJob(HrServiceLocator.getJobService().getJob(this.getPrincipalId(), this.getJobNumber(), LocalDate.now(), false));
 				}
 			}
 			setDept((this.getJob() != null) ? this.getJob().getDept() : "");
 		}
 		return dept;
 	}
 
 	public void setDept(String dept) {
 		this.dept = dept;
 	}
 
 	public WorkArea getWorkAreaObj() {
 		if(workAreaObj == null && workArea != null) {
 			this.setWorkAreaObj(HrServiceLocator.getWorkAreaService().getWorkArea(this.getWorkArea(), this.getEffectiveLocalDate()));
 		}
 		return workAreaObj;
 	}
 
 	public void setWorkAreaObj(WorkArea workAreaObj) {
 		this.workAreaObj = workAreaObj;
 	}
 
 	public Long getWorkArea() {
 		return workArea;
 	}
 
 	public Long getTask() {
 		if(task == null) {
 			return Long.valueOf(0);	// default task to 0 if task not provided
 		}
 		return task;
 	}
 
 	public String getAssignmentDescription() {
 		return TKUtils.getAssignmentString(getPrincipalId(), getJobNumber(), getWorkArea(), getTask(), getEffectiveLocalDate());
 	}
 
 	public Person getPrincipal() {
 		return principal;
 	}
 
 	public void setPrincipal(Person principal) {
 		this.principal = principal;
 	}
 
 	public Task getTaskObj() {
 		return taskObj;
 	}
 
 	public void setTaskObj(Task taskObj) {
 		this.taskObj = taskObj;
 	}
 
 	/*public Long getTkWorkAreaId() {
 		return tkWorkAreaId;
 	}
 
 	public void setTkWorkAreaId(Long tkWorkAreaId) {
 		this.tkWorkAreaId = tkWorkAreaId;
 	}*/
 	public Boolean getHistory() {
 		return history;
 	}
 	public void setHistory(Boolean history) {
 		this.history = history;
 	}
 
 	@Override
 	public String getUniqueKey() {
 		String jobKey = getPrincipalId()+"_"+getJobNumber()+"_"+getWorkArea()+"_"+
 			(getTask() != null ? getTask().toString() : "");
 		return jobKey;
 
 	}
 
 	@Override
 	public String getId() {
 		return getTkAssignmentId();
 	}
 
 	@Override
 	public void setId(String id) {
 		setTkAssignmentId(id);
 	}
 
     @Override
     public boolean equals(Object obj) {
         if (obj == null)
             return false;
         if (obj == this)
             return true;
         if (obj.getClass() != getClass())
             return false;
 
         Assignment rhs = (Assignment)obj;
         return new EqualsBuilder().append(principalId, rhs.principalId).append(jobNumber, rhs.jobNumber)
                 .append(workArea, rhs.workArea).append(task, rhs.task).isEquals();
     }
 
     @Override
     public int hashCode() {
         return new HashCodeBuilder(17, 781).append(principalId).append(jobNumber).append(workArea).append(task).toHashCode();
     }
 
     public String getCalGroup() {
         return calGroup;
     }
 
     public void setCalGroup(String calGroup) {
         this.calGroup = calGroup;
     }
 
     public String getAssignmentKey() {
         return new AssignmentDescriptionKey(this).toAssignmentKeyString();
     }
 }