package com.estylesoft.pfr.spu.classifier.model;

import com.estylesoft.pfr.spu.common.model.Period;

import javax.persistence.*;
import javax.xml.bind.annotation.XmlTransient;
import java.io.Serializable;

/**
 * A base class for classifiers. Classifiers are closer to entities than to value objects (DDD). Classifiers are
 * immutable and are created by other system (НСИ).
 *
 * <p>
 * The <code>{@link #id}</code> should not be considered as a primary (find) key.
 *
 * @author schurukanov
 */
@MappedSuperclass
// @DataCache(enabled = true, timeout = 43200000)
@EntityListeners(ClassifierDefaultsInitializer.class)
public abstract class Classifier implements Serializable{
    @XmlTransient
	private Long id;

    @XmlTransient
	private Period lifetime;

	@XmlTransient
	private String dsc;

	public Classifier() {
		this.lifetime = new Period();
	}

    public Classifier(Period lifetime) {
		this.lifetime = lifetime;
	}

	@Embedded
	public Period getLifetime() {
		return lifetime;
	}

    public void setLifetime(Period lifetime) {
        this.lifetime = lifetime;
    }

    /**
	 * This method should not be used in business code.
	 *
	 * deprecated [schurukanov]: see
	 *             {@link com.estylesoft.pfr.spu.classifier.infrastructure.ClassifierRepositoryImpl#add(Classifier)}
	 */
	public void setId(Long id) {
		this.id = id;
	}

	@Id
	@Column(name = "ID")
    public Long getId() {
        return id;
    }

    @Override
	public int hashCode() {
		return this.getId() != null ? this.getId().hashCode() : 0;
	}

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

		Classifier classifier = (Classifier) object;
        if(this.getId() != null){
            return this.getId().equals(classifier.getId());
        } else {
            return (classifier.getId() == null);
        }
	}

	//
	// Infrastructure stuff
	//

	@Transient
	public Long getPersistenceId() {
		return getId();
	}


	@Transient
	public String getDsc() {
		return dsc;
	}

	public void setDsc(String dsc) {
		this.dsc = dsc;
	}

    @Override
    public String toString() {
        return "Classifier{" +
                "id=" + getId() +
                ", lifetime=" + getLifetime() +
                ", dsc='" + getDsc() + '\'' +
                ", persistenceId=" + getPersistenceId() +
                '}';
    }
}