package org.minetti.astrodevice.server.hibernate.object.embedded;
   
   import java.io.Serializable;
   import javax.persistence.Embeddable;
   import org.minetti.astrodevice.common.coordinate.Coordinate;
   import org.minetti.astrodevice.common.coordinate.DecimalCoordinate;
   import org.minetti.astrodevice.common.coordinate.SexagesimalCoordinate;
   
   /**
   * Object representing a coordinate stored as sexagesimal format (embeddable class for Hibernate
   * framework).
   * @author Jean-Philippe MINETTI
   */
  @Embeddable
  public final class EmbeddedSexagesimalCoordinate
  		implements Serializable {
  
  	/**
  	 * Serial number.
  	 */
  	private static final long serialVersionUID = 5380898268847795274L;
  
  	/**
  	 * Angle part of coordinate in degrees (°) or hours (h).
  	 */
  	private int angle;
  
  	/**
  	 * Minutes part of coordinate (′).
  	 */
  	private int minutes;
  
  	/**
  	 * Seconds part of coordinate (″).
  	 */
  	private double seconds;
  
  	/**
  	 * Constructor.
  	 */
  	public EmbeddedSexagesimalCoordinate () {
  		super();
  	}
  
  	/**
  	 * Constructor.
  	 * @param hourAngle <code>TRUE</code> if the coordinate must be an hour angle and therefore
  	 *            expressed in hours.
  	 * @param coordinate Coordinate.
  	 */
  	public EmbeddedSexagesimalCoordinate (final boolean hourAngle, final Coordinate coordinate) {
  		super();
  		final Coordinate convertedCoordinate = convert(hourAngle, coordinate);
  		this.angle = convertedCoordinate.getAngle();
  		this.minutes = convertedCoordinate.getMinutes();
  		this.seconds = convertedCoordinate.getSeconds();
  	}
  
  	/**
  	 * Converts a coordinate in the right unit.
  	 * @param hourAngle <code>TRUE</code> if the coordinate must be an hour angle and therefore
  	 *            expressed in hours.
  	 * @param coordinate Coordinate to convert.
  	 * @return Converted coordinate.
  	 */
  	private static Coordinate convert (final boolean hourAngle, final Coordinate coordinate) {
  		Coordinate result;
  		if (hourAngle == coordinate.isHourAngle()) {
  			result = coordinate;
  		}
  		else {
  			final double value = coordinate.getValue() / (coordinate.isHourAngle() ? 24.0 : 360.0) * (hourAngle ? 24.0 : 360.0);
  			result = new DecimalCoordinate(hourAngle, value);
  		}
  		return result;
  	}
  
  	/**
  	 * Returns the angle part of coordinate.
  	 * @return Angle part of coordinate in degrees (°) or hours (h).
  	 */
  	public int getAngle () {
  		return this.angle;
  	}
  
  	/**
  	 * Sets the angle part of coordinate.
  	 * @param angle Angle part of coordinate in degrees (°) or hours (h).
  	 */
  	public void setAngle (final int angle) {
  		this.angle = angle;
  	}
  
  	/**
  	 * Returns the minutes part of coordinate.
  	 * @return Minutes part of coordinate (′).
  	 */
  	public int getMinutes () {
  		return this.minutes;
 	}
 
 	/**
 	 * Sets the minutes part of coordinate.
 	 * @param minutes Minutes part of coordinate (′).
 	 */
 	public void setMinutes (final int minutes) {
 		this.minutes = minutes;
 	}
 
 	/**
 	 * Returns the seconds part of coordinate.
 	 * @return Seconds part of coordinate (″).
 	 */
 	public double getSeconds () {
 		return this.seconds;
 	}
 
 	/**
 	 * Sets the seconds part of coordinate.
 	 * @param seconds Seconds part of coordinate (″).
 	 */
 	public void setSeconds (double seconds) {
 		this.seconds = seconds;
 	}
 
 	/**
 	 * Returns the coordinate.
 	 * @param hourAngle <code>TRUE</code> if the coordinate must be an hour angle and therefore
 	 *            expressed in hours.
 	 * @return Coordinate.
 	 */
 	public Coordinate toCoordinate (final boolean hourAngle) {
 		return new SexagesimalCoordinate(hourAngle, this.angle, this.minutes, this.seconds);
 	}
 
 	/*
 	 * (non-Javadoc)
 	 * @see java.lang.Object#toString()
 	 */
 	@Override
 	public String toString () {
 		return "EmbeddedSexagesimalCoordinate[angle=" + this.angle + ", minutes=" + this.minutes + ", seconds=" + this.seconds + "]";
 	}
 
 }