package io.vertx.pgclient.data;

import java.util.ArrayList;
import java.util.List;
import java.util.Objects;

Polygon data type in Postgres represented by lists of points (the vertexes of the polygon).
Polygons are very similar to closed paths, but are stored differently and have their own set of support routines.
/**
 * Polygon data type in Postgres represented by lists of points (the vertexes of the polygon).
 * Polygons are very similar to closed paths, but are stored differently and have their own set of support routines.
 */
public class Polygon {
  private List<Point> points;

  public Polygon() {
    this(new ArrayList<>());
  }

  public Polygon(List<Point> points) {
    this.points = points;
  }


  public List<Point> getPoints() {
    return points;
  }

  public void setPoints(List<Point> points) {
    this.points = points;
  }

  public Polygon addPoint(Point point) {
    Objects.requireNonNull(point);
    if (points == null) {
      points = new ArrayList<>();
    }
    points.add(point);
    return this;
  }

  @Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (o == null || getClass() != o.getClass()) return false;

    Polygon polygon = (Polygon) o;

    return points.equals(polygon.points);
  }

  @Override
  public int hashCode() {
    return points.hashCode();
  }

  @Override
  public String toString() {
    StringBuilder stringBuilder = new StringBuilder();
    stringBuilder.append("Polygon");
    stringBuilder.append("(");
    for (int i = 0; i < points.size(); i++) {
      Point point = points.get(i);
      stringBuilder.append(point.toString());
      if (i != points.size() - 1) {
        // not the last one
        stringBuilder.append(",");
      }
    }
    stringBuilder.append(")");
    return stringBuilder.toString();
  }
}