package org.simantics.interop.mapping.data;

import java.util.ArrayList;
import java.util.Collection;

import org.simantics.db.Resource;

public class ResourceIdentifiable implements Identifiable {

	protected Resource resource;
	
	public ResourceIdentifiable(Resource resource) {
		this.resource = resource;
	}
	
	public Resource getResource() {
		return resource;
	}
	
	@Override
	public int hashCode() {
		return resource.hashCode();
	}
	
	@SuppressWarnings("unchecked")
	public <T> T getAdapter(Class<T> clazz) {
		if (clazz.equals(Resource.class))
			return (T)resource;
		if (clazz.equals(Resource[].class))
			return (T) new Resource[]{resource};
		if (clazz.equals(String.class)) {
			// TODO : have to use org.simantics.db.common.utils.Transaction to get access to ReadGraph.
			return (T)resource.toString();//NameUtils.getSafeName(g,resource);
		}
		return null;
	}
	
	@Override
	public boolean equals(Object arg0) {
		if (arg0 == null)
			return false;
		if (this.getClass() != arg0.getClass())
			return false;
		ResourceIdentifiable other = (ResourceIdentifiable)arg0;
		return resource.equals(other.resource);
	}
	
	@Override
	public Identifiable merge(Identifiable other) {
		if (other instanceof ResourceIdentifiable) {
			ResourceSetIdentifiable i = new ResourceSetIdentifiable(this.resource,((ResourceIdentifiable)other).resource);
			return i;
		} else if (other instanceof ResourceSetIdentifiable) {
			Collection<Resource> coll = new ArrayList<Resource>();
			coll.add(this.resource);
			coll.addAll(((ResourceSetIdentifiable)other).getResources());
			ResourceSetIdentifiable i = new ResourceSetIdentifiable(resource,coll);
			return i;
		}
		return null;
	}
	
	@Override
	public String toString() {
		return resource.toString();
	}
	
}