package seng302.Model;

import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;
import org.geotools.referencing.GeodeticCalculator;
import seng302.GPSCoordinate;

import java.awt.geom.Point2D;
import java.time.ZonedDateTime;
import java.util.Queue;
import java.util.concurrent.ConcurrentLinkedQueue;

/**
 * Created by fwy13 on 3/03/17.
 */
public class Boat {

    private final StringProperty name;
    protected double velocity;
    private final StringProperty velocityProp;
    private final String abbrev;
    private GPSCoordinate currentPosition;
    protected double heading;
    private Leg currentLeg;
    private final StringProperty currentLegName;
    private boolean finished = false;
    private long timeFinished;
    private final StringProperty position;
    private boolean started = false;
    private boolean dnf = false;
    private int sourceID;
    private final Queue<TrackPoint> track = new ConcurrentLinkedQueue<>();
    private long nextValidTime = 0;

    private ZonedDateTime timeSinceLastMark;

    /**
     * Boat initializer which keeps all of the information of the boat.
     *
     * @param name     Name of the Boat.
     * @param velocity Speed in m/s that the boat travels at.
     * @param abbrev   nam abbreviation
     */
    public Boat(String name, double velocity, String abbrev) {
        this.velocity = velocity;
        this.velocityProp = new SimpleStringProperty(String.valueOf(Math.round(velocity)));
        this.abbrev = abbrev;
        this.name = new SimpleStringProperty(name);
        currentLegName = new SimpleStringProperty("");
        position = new SimpleStringProperty("-");
    }

    /**
     * Boat initializer which keeps all of the information of the boat.
     *
     * @param name   Name of the Boat.
     * @param abbrev nam abbreviation
     */
    protected Boat(String name, String abbrev) {
        this(name, 0, abbrev);
    }

    /**
     * Returns the position of the end of the boat's wake, which is 180 degrees
     * from the boat's heading, and whose length is proportional to the boat's
     * speed.
     *
     * @return GPSCoordinate of wake endpoint.
     */
    public GPSCoordinate getWake() {
        double reverseHeading = getHeading() - 180;
        double wakeScale = 5;
        double distance = wakeScale * getVelocity();

        GeodeticCalculator calc = new GeodeticCalculator();
        calc.setStartingGeographicPoint(
                new Point2D.Double(getCurrentPosition().getLongitude(), getCurrentPosition().getLatitude())
        );
        calc.setDirection(reverseHeading, distance);
        Point2D endpoint = calc.getDestinationGeographicPoint();
        return new GPSCoordinate(endpoint.getY(), endpoint.getX());
    }

    /**
     * Adds a new point to boat's track.
     * @param coordinate of point on track
     * @see seng302.Model.TrackPoint
     */
    public void addTrackPoint(GPSCoordinate coordinate) {
        Boolean added = System.currentTimeMillis() >= nextValidTime;
        long currentTime = System.currentTimeMillis();
        if (added && this.started) {
            float trackPointTimeInterval = 5000;
            nextValidTime = currentTime + (long) trackPointTimeInterval;
            int TRACK_POINT_LIMIT = 10;
            track.add(new TrackPoint(coordinate, currentTime, TRACK_POINT_LIMIT * (long) trackPointTimeInterval));
        }
    }

    /**
     * Returns the boat's sampled track between start of race and current time.
     * @return queue of track points
     * @see seng302.Model.TrackPoint
     */
    public Queue<TrackPoint> getTrack() {
        return track;
    }

    /**
     * @return Name of the boat
     */
    public StringProperty getName() {
        return name;
    }

    /**
     * Sets the boat name
     *
     * @param name of boat
     */
    public void setName(String name) {
        this.name.setValue(name);
    }



    /**
     * @return Speed of the boat.
     */
    public double getVelocity() {
        return velocity;
    }

    /**
     * Sets the speed of the boat in knots.
     *
     * @param velocity speed in knots
     */
    public void setVelocity(double velocity) {
        this.velocity = velocity;
        this.velocityProp.setValue(String.valueOf(Math.round(velocity)));
    }

    /**
     * Print method prints the name of the boat
     *
     * @return Name of the boat.
     */
    public String toString() {
        return getName().getValue();
    }

    /**
     * @return Velocity String Property of the boat
     */
    public StringProperty getVelocityProp() {
        return velocityProp;
    }

    /**
     * @return Abbreviation of the boat
     */
    public String getAbbrev() {
        return abbrev;
    }

    public GPSCoordinate getCurrentPosition() {
        return currentPosition;
    }

    public void setCurrentPosition(GPSCoordinate currentPosition) {
        this.currentPosition = currentPosition;
    }

    public double getHeading() {
        return heading;
    }

    public void setHeading(double heading) {
        this.heading = heading;
    }

    public Leg getCurrentLeg() {
        return currentLeg;
    }

    public void setCurrentLeg(Leg currentLeg, RaceClock raceClock) {
        this.currentLeg = currentLeg;
        this.currentLegName.setValue(currentLeg.getName());
        this.setTimeSinceLastMark(raceClock.getTime());
    }

    public boolean isFinished() {
        return finished;
    }

    public void setFinished(boolean finished) {
        this.finished = finished;
    }

    public long getTimeFinished() {
        return timeFinished;
    }

    public void setTimeFinished(long timeFinished) {
        this.timeFinished = timeFinished;
    }

    public StringProperty positionProperty() {
        return position;
    }

    public void setPosition(String position) {
        this.position.set(position);
    }

    public boolean isStarted() {
        return started;
    }

    public void setStarted(boolean started) {
        this.started = started;
    }

    /**
     * @return Name of boat's current leg
     */
    public StringProperty getCurrentLegName() {
        return currentLegName;
    }

    public int getSourceID() {
        return this.sourceID;
    }

    public boolean isDnf() {
        return dnf;
    }

    public void setDnf(boolean dnf) {
        this.dnf = dnf;
    }

    public ZonedDateTime getTimeSinceLastMark() {
        return timeSinceLastMark;
    }

    public void setTimeSinceLastMark(ZonedDateTime timeSinceLastMark) {
        this.timeSinceLastMark = timeSinceLastMark;
    }
}