package org.simantics.district.route.internal;

import java.util.Objects;

import org.simantics.db.Resource;
import org.simantics.district.route.Waypoint;

/**
 * @author Tuukka Lehtonen
 * @since 6.09
 */
public class WaypointImpl implements Waypoint {

    private final Resource element;
    private String label;

    public WaypointImpl(Resource element, String label) {
        Objects.requireNonNull(element, "Non-null element required");
        this.element = element;
        this.label = label;
    }

    @SuppressWarnings("unchecked")
    @Override
    public <T> T getObject() {
        return (T) element;
    }

    @Override
    public String getLabel() {
        return label;
    }

    public void setLabel(String label) {
        this.label = label;
    }

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

    public Waypoint withLabel(String label) {
        return new WaypointImpl(element, label);
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + element.hashCode();
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        WaypointImpl other = (WaypointImpl) obj;
        return element.equals(other.element);
    }

}