/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
 * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
 */
package org.hibernate.userguide.collections;

import java.sql.Timestamp;
import java.time.LocalDateTime;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.ManyToOne;
import javax.persistence.MapKey;
import javax.persistence.MapKeyEnumerated;
import javax.persistence.OneToMany;

import org.hibernate.jpa.test.BaseEntityManagerFunctionalTestCase;

import org.junit.Assert;
import org.junit.Test;

import static org.hibernate.testing.transaction.TransactionUtil.doInJPA;

/**
 * @author Vlad Mihalcea
 */
public class BidirectionalMapTest extends BaseEntityManagerFunctionalTestCase {

	@Override
	protected Class<?>[] getAnnotatedClasses() {
		return new Class<?>[] {
				Person.class,
				Phone.class,
		};
	}

	@Test
	public void testLifecycle() {
		doInJPA( this::entityManagerFactory, entityManager -> {
			Person person = new Person( 1L );
			LocalDateTime now = LocalDateTime.now();
			person.addPhone( new Phone( PhoneType.LAND_LINE, "028-234-9876", Timestamp.valueOf( now ) ) );
			person.addPhone( new Phone( PhoneType.MOBILE, "072-122-9876", Timestamp.valueOf( now.minusDays( 1 ) ) ) );
			entityManager.persist( person );
		} );
		doInJPA( this::entityManagerFactory, entityManager -> {
			Person person = entityManager.find( Person.class, 1L );
			Map<PhoneType, Phone> phones = person.getPhoneRegister();
			Assert.assertEquals( 2, phones.size() );
		} );
	}

	public enum PhoneType {
		LAND_LINE,
		MOBILE
	}

	//tag::collections-map-bidirectional-example[]
	@Entity(name = "Person")
	public static class Person {

		@Id
		private Long id;
		@OneToMany(mappedBy = "person", cascade = CascadeType.ALL, orphanRemoval = true)
		@MapKey(name = "type")
		@MapKeyEnumerated
		private Map<PhoneType, Phone> phoneRegister = new HashMap<>();

		public Person() {
		}

		public Person(Long id) {
			this.id = id;
		}

		public Map<PhoneType, Phone> getPhoneRegister() {
			return phoneRegister;
		}

		public void addPhone(Phone phone) {
			phone.setPerson( this );
			phoneRegister.put( phone.getType(), phone );
		}
	}

	@Entity(name = "Phone")
	public static class Phone {

		@Id
		@GeneratedValue
		private Long id;

		private PhoneType type;

		@Column(name = "`number`")
		private String number;

		private Date since;

		@ManyToOne
		private Person person;

		public Phone() {
		}

		public Phone(PhoneType type, String number, Date since) {
			this.type = type;
			this.number = number;
			this.since = since;
		}

		public PhoneType getType() {
			return type;
		}

		public String getNumber() {
			return number;
		}

		public Date getSince() {
			return since;
		}

		public Person getPerson() {
			return person;
		}

		public void setPerson(Person person) {
			this.person = person;
		}
	}
	//end::collections-map-bidirectional-example[]
}