package schedframe.scheduling;

import java.util.List;

import org.joda.time.DateTime;

import schedframe.resources.ResourceDescription;
import schedframe.resources.ResourceProvider;
import schedframe.scheduling.utils.ResourceParameterName;

/**
 * 
 * @author Marcin Krystek
 *
 */
public class Reservation extends TimeResourceAllocation {

	private static final long serialVersionUID = 7837525861926610754L;

	protected Status status;

	protected DateTime creationTime;
	
	protected ResourceProvider resourceProvider;
	
	protected List<ReservedHost> reservedHosts;
	
	protected String jobId;
	
	protected String taskId;
	
	protected String userId;
	
	public Reservation(ResourceDescription allocatedResource,
			DateTime startTime, DateTime endTime, DateTime creationTime) {
		super(allocatedResource, startTime, endTime);
		this.creationTime = creationTime;
	}
	
	public Reservation(Reservation r){
		super(r);
		this.status = r.getStatus();
		this.creationTime = new DateTime(r.getCreationTime());
		this.resourceProvider = r.getResourceProvider();
	}

	public Status getStatus(){
		return this.status;
	}
	
	public synchronized void setStatus(Status status){
		this.status = status;
	}
	
	public ResourceProvider getResourceProvider(){
		return this.resourceProvider;
	}
	
	public void setResourceProvider(ResourceProvider provider){
		this.resourceProvider = provider;
	}
	
	public DateTime getCreationTime(){
		return this.creationTime;
	}
	
	public boolean equals(Object obj){
		if(obj instanceof Reservation == false)
			return false;
		
		if(! super.equals(obj)) return false;
		
		Reservation r = (Reservation) obj;
		
		if(creationTime != null && ! creationTime.equals(r.getCreationTime())) return false;
		
		if(resourceProvider != null && ! resourceProvider.equals(r.resourceProvider)) return false;
		
		if(status != r.getStatus())
			throw new RuntimeException("Two objects, representing reservation "+ this.id + 
					" have different status.");
		
		return true;
	}
	
	public String toString(){
		String s = null;
		try {
			s = "reservation id/jobId/taskId/start/end: " + 
			id + "/" + jobId + "/" + taskId + "/" + getStart() + "/" + getEnd() + 
			" res amount: " + allocatedResource.getResourceUnit(ResourceParameterName.CPUCOUNT).getUsedAmount();
		} catch (NoSuchFieldException e) {
			e.printStackTrace();
		}
		return s;
	}
	
	public String getJobId() {
		return jobId;
	}

	public void setJobId(String jobId) {
		this.jobId = jobId;
	}

	public String getTaskId() {
		return taskId;
	}

	public void setTaskId(String taskId) {
		this.taskId = taskId;
	}

	public String getUserId() {
		return userId;
	}

	public void setUserId(String userId) {
		this.userId = userId;
	}
	
	public List<ReservedHost> getReservedHosts(){
		return this.reservedHosts;
	}
	
	public void setReservedHosts(List<ReservedHost> list){
		this.reservedHosts = list;
	}
	
	public enum Status{
		INITIAL(),
		COMMITTED(),
		ACTIVE(),
		EXPIRED(),
		CANCELED(),
		FINISHED();
	}
}