import com.runemate.game.api.hybrid.entities.details.Locatable;
import com.runemate.game.api.hybrid.location.Area;
import com.runemate.game.api.hybrid.location.Coordinate;
import com.runemate.game.api.hybrid.util.calculations.Distance;

import java.util.Arrays;
import java.util.List;

/**
 * Created by Viewer on 24/05/2015.
 */
public class AbsoluteArea extends Area {

    private Coordinate[] coordinates;

    public AbsoluteArea(Coordinate[] coordinates) {
        for (int i = 0; i < coordinates.length - 1; i++) {
            if (Distance.between(coordinates[i], coordinates[i + 1]) >= 2) {
                try {
                    throw new Exception("Each coordinate must be contiguous to atleast one another in the array");
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }
        this.coordinates = coordinates;
    }

    public boolean contains(Locatable locatable) {
        if (locatable != null) {
            for (Coordinate c : coordinates) {
                if (locatable.getPosition().equals(c)) {
                    return true;
                }
            }
        }
        return false;
    }

    private Coordinate getNorthwestern() {
        Coordinate northwestern = null;
        int x = Integer.MAX_VALUE, y = Integer.MAX_VALUE;
        for (Coordinate c : coordinates) {
            if (c.getX() < x && c.getY() < y) {
                northwestern = c;
                x = c.getX();
                y = c.getY();
            }
        }
        return northwestern;
    }

    private Coordinate getSouthwestern() {
        Coordinate southwestern = null;
        int x = 0, y = 0;
        for (Coordinate c : coordinates) {
            if (c.getX() > x && c.getY() > y) {
                southwestern = c;
                x = c.getX();
                y = c.getY();
            }
        }
        return southwestern;
    }

    @Override
    public String toString() {
        return null;
    }

    @Override
    public List<Coordinate> getCoordinates() {
        return Arrays.asList(coordinates);
    }

    @Override
    public Rectangular toRectangular() {
        return new Area.Rectangular(getNorthwestern(), getSouthwestern());
    }
}