/*
 * JBoss, Home of Professional Open Source
 * Copyright 2013, Red Hat Middleware LLC, and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.hibernate.jpa.test.pack;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collections;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.List;
import javax.persistence.Basic;
import javax.persistence.CascadeType;
import javax.persistence.Entity;
import javax.persistence.EntityListeners;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.OneToMany;
import javax.persistence.PostLoad;
import javax.persistence.PostPersist;
import javax.persistence.PostUpdate;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;
import javax.persistence.Transient;

import org.jboss.logging.Logger;

/**
 * @author Emmanuel Bernard
 */
@SuppressWarnings({"unchecked", "serial"})
@Entity
@EntityListeners(LastUpdateListener.class)
public class Cat implements Serializable {
    private static final Logger log = Logger.getLogger(Cat.class);

    private static final List ids = new ArrayList();    // used for assertions
    public static int postVersion = 0;    // used for assertions

    private Integer id;
    private String name;
    private Date dateOfBirth;
    private int age;
    private long length;
    private Date lastUpdate;
    private int manualVersion = 0;
    private List<Kitten> kittens;

    public static synchronized List getIdList() {
        return Collections.unmodifiableList(ids);
    }

    @Id
    @GeneratedValue
    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Date getDateOfBirth() {
        return dateOfBirth;
    }

    public void setDateOfBirth(Date dateOfBirth) {
        this.dateOfBirth = dateOfBirth;
    }

    public int getManualVersion() {
        return manualVersion;
    }

    public void setManualVersion(int manualVersion) {
        this.manualVersion = manualVersion;
    }

    @Transient
    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    @Basic
    @Temporal(TemporalType.TIMESTAMP)
    public Date getLastUpdate() {
        return lastUpdate;
    }

    public void setLastUpdate(Date lastUpdate) {
        this.lastUpdate = lastUpdate;
    }

    @PostUpdate
    private void someLateUpdateWorking() {
        log.debug("PostUpdate for: " + this.toString());
        postVersion++;
    }

    @PostLoad
    public void calculateAge() {
        Calendar birth = new GregorianCalendar();
        birth.setTime(dateOfBirth);
        Calendar now = new GregorianCalendar();
        now.setTime(new Date());
        int adjust = 0;
        if (now.get(Calendar.DAY_OF_YEAR) - birth.get(Calendar.DAY_OF_YEAR) < 0) {
            adjust = -1;
        }
        age = now.get(Calendar.YEAR) - birth.get(Calendar.YEAR) + adjust;
    }

    @PostPersist
    public synchronized void addIdsToList() {
        ids.add(getId());
    }

    public long getLength() {
        return length;
    }

    public void setLength(long length) {
        this.length = length;
    }

    @OneToMany(cascade = CascadeType.ALL)
    public List<Kitten> getKittens() {
        return kittens;
    }

    public void setKittens(List<Kitten> kittens) {
        this.kittens = kittens;
    }

    /**
     * Constructs a <code>String</code> with all attributes
     * in name = value format.
     *
     * @return a <code>String</code> representation
     * of this object.
     */
    @Override
    public String toString() {
        final String TAB = "    ";

        String retValue = "";

        retValue = "Cat ( "
                + super.toString() + TAB
                + "id = " + this.id + TAB
                + "name = " + this.name + TAB
                + "dateOfBirth = " + this.dateOfBirth + TAB
                + "age = " + this.age + TAB
                + "length = " + this.length + TAB
                + "lastUpdate = " + this.lastUpdate + TAB
                + "manualVersion = " + this.manualVersion + TAB
                + "postVersion = " + Cat.postVersion + TAB
                + "kittens = " + this.kittens + TAB
                + " )";

        return retValue;
    }
}