package seng302.Model;

import org.geotools.referencing.GeodeticCalculator;
import seng302.Constants;
import seng302.GPSCoordinate;

/**
 * Created by cbt24 on 6/03/17.
 */
public class Leg {
    private final String name; //nautical miles
    private double distance;
    private CompoundMark startCompoundMark;
    private CompoundMark endCompoundMark;
    private final int legNumber;

    /**
     * Leg Initializer
     *
     * @param name   Name of the Leg
     * @param start  marker
     * @param end    marker
     * @param number Leg's position in race
     */
    public Leg(String name, CompoundMark start, CompoundMark end, int number) {
        this.name = name;
        this.startCompoundMark = start;
        this.endCompoundMark = end;
        this.legNumber = number;
        calculateDistance();
    }

    /**
     * Construction Method
     *
     * @param name   Name of the Leg
     * @param number leg number
     */
    public Leg(String name, int number) {
        this.name = name;
        this.legNumber = number;
    }

    /**
     * Returns the name of the Leg
     *
     * @return Returns the name of the Leg
     */
    public String getName() {
        return name;
    }

    /**
     * Get the distance in nautical miles
     *
     * @return Returns the total distance of the leg.
     */
    public double getDistance() {
        return distance;
    }

    /**
     * Returns the leg number that the leg exists in the Race
     *
     * @return Returns the Leg
     * @see Race
     */
    public int getLegNumber() {
        return legNumber;
    }


    public CompoundMark getStartCompoundMark() {
        return startCompoundMark;
    }

    public void setStartCompoundMark(CompoundMark startCompoundMark) {
        this.startCompoundMark = startCompoundMark;
    }

    public CompoundMark getEndCompoundMark() {
        return endCompoundMark;
    }

    public void setEndCompoundMark(CompoundMark endCompoundMark) {
        this.endCompoundMark = endCompoundMark;
    }

    /**
     * Calculates the distance that the legs are in nautical miles (1.852 km).
     */
    private void calculateDistance() {

        GeodeticCalculator calc = new GeodeticCalculator();
        //Load start and end of leg
        GPSCoordinate startMarker = this.startCompoundMark.getAverageGPSCoordinate();
        GPSCoordinate endMarker = this.endCompoundMark.getAverageGPSCoordinate();
        calc.setStartingGeographicPoint(startMarker.getLongitude(), startMarker.getLatitude());
        calc.setDestinationGeographicPoint(endMarker.getLongitude(), endMarker.getLatitude());
        this.distance = calc.getOrthodromicDistance() / Constants.NMToMetersConversion;
    }


}