package eu.simstadt.nf4j;

/**
 * The list of all possible export and import job states.
 * 
 * @author Marcel Bruse
 */
public enum JobStatus {
	UNKOWN(0), LOCAL(1), SENT(2), PENDING(3), RUNNING(4), FAILED(5), FINISHED(6), READY_TO_RUN(7), ERROR(8),
	WARNING(9),	APPROVE(10), REJECT(11), APPROVE_RUNNING(12), REJECT_RUNNING(13), APPROVE_REJECT_ERROR(14),
	APPROVE_REJECT_OK(15), IMPORTED_WARNING(16);
	
	public static final String UNKNOWN_MESSAGE = "The state of the job is unknown.";
	public static final String LOCAL_MESSAGE = "The job is known locally only. It has not been sent yet.";
	public static final String SENT_MESSAGE = "The job has been sent, is enqueued at the nF and has a job id.";
	public static final String PENDING_MESSAGE = "Job is pending.";
	public static final String RUNNING_MESSAGE = "Job is running.";
	public static final String FAILED_MESSAGE = "Job failed.";
	public static final String FINISHED_MESSAGE = "Job is finished.";
	
	/**
	 * This constructor sets messages for some states.
	 * 
	 * @param internalCode Our numerical SimStadt-internal code for the nF status codes.
	 */
	private JobStatus(int internalCode) {
		switch (internalCode) {
		case 0:
			message = UNKNOWN_MESSAGE; break;
		case 1:
			message = LOCAL_MESSAGE; break;
		case 2:
			message = SENT_MESSAGE; break;
		case 3:
		case 7:
			message = PENDING_MESSAGE; break;
		case 4:
			message = RUNNING_MESSAGE; break;
		case 5:
		case 8:
			message = FAILED_MESSAGE; break;
		case 6:
			message = FINISHED_MESSAGE; break;
		default:
			message = "";
		}
	}
	
	/**
	 * This message describes the status or gives hints about error states. This message may come from a
	 * nF response.
	 */
	private String message;
	
	/**
	 * Sets a message for this status in order to describe the status.
	 * 
	 * @param message A message to describe this status.
	 */
	public void setMessage(String message) {
		this.message = message;
	}
	
	/**
	 * @return Returns a message which describes this status.
	 */
	public String getMessage() {
		return message;
	}
}