package tudelft.healthpsychology.traumaontologies.owltree;

import org.semanticweb.owlapi.model.OWLDataPropertyDomainAxiom;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;

import tudelft.healthpsychology.traumaontologies.answerstate.Property;
import tudelft.healthpsychology.traumaontologies.questiontypes.Bool;
import tudelft.healthpsychology.traumaontologies.questiontypes.Int;
import tudelft.healthpsychology.traumaontologies.questiontypes.Text;
import tudelft.healthpsychology.traumaontologies.questiontypes.TypedQuestion;
import uk.ac.manchester.cs.owl.owlapi.OWLDataPropertyImpl;

/**
 * adapter for {@link OWLDataPropertyDomainAxiom} that makes it conform our
 * abstractionlayer {@link Property}. immutable.
 */
public class OwlProperty implements Property {

	private final String range;
	private final String comment;
	private final String id; // must be unique for each property.

	/**
	 * @param range   the indicated range of the property. Allowed are
	 *                http://www.w3.org/2001/XMLSchema#boolean,
	 *                http://www.w3.org/2001/XMLSchema#int or
	 *                http://www.w3.org/2001/XMLSchema#string
	 * @param comment the comment text attached to the property.
	 * @param id      unique ID referring to the OWL file property ID
	 */
	@JsonCreator
	public OwlProperty(@JsonProperty("range") String range,
			@JsonProperty("comment") String comment,
			@JsonProperty("id") String id) {
		this.range = range;
		this.comment = comment;
		this.id = id;
	}

	/**
	 * Convenience constructor that uses the OWL objects.
	 * 
	 * @param dp       a specific property like #Locatie_meubel
	 * @param reasoner our reasoner
	 */
	public OwlProperty(OWLDataPropertyDomainAxiom axiom,
			OwlTreeReasoner reasoner) {
		this(reasoner.getRange(axiom), reasoner.getComment(axiom),
				((OWLDataPropertyImpl) axiom.getProperty()).getIRI()
						.getFragment());
	}

	@Override
	public TypedQuestion getQuestionType() {
		return createAnswer(range, comment, id);
	}

	@Override
	public String toString() {
		return "OWLProperty[" + id + "," + comment + "]";
	}

	/**
	 * Factory method, mainly for testing this. See
	 * {@link QuestionTypeFactory#create(String, String)}
	 * 
	 * @param type     the type as in the range field of the owl file:
	 *                 http://www.w3.org/2001/XMLSchema#string, #int and
	 *                 #boolean
	 * @param question the question string, typically as in the comment field of
	 *                 the owl file.
	 * @param id       the node id
	 * @return a proper answertype for this question and type
	 */
	protected TypedQuestion createAnswer(String type, String question,
			String id) {
		switch (type) {
		case "http://www.w3.org/2001/XMLSchema#boolean":
			return new Bool(question, id);
		case "http://www.w3.org/2001/XMLSchema#int":
			return new Int(question, id);

		case "http://www.w3.org/2001/XMLSchema#string":
			return new Text(question, id);
		default:
			throw new IllegalArgumentException(
					"Unknown/Unsupported type: " + type);
		}
	}

	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + ((id == null) ? 0 : id.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;
		OwlProperty other = (OwlProperty) obj;
		if (id == null) {
			if (other.id != null)
				return false;
		} else if (!id.equals(other.id))
			return false;
		return true;
	}

}