/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2011, Red Hat Inc. or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.  All third-party contributions are
 * distributed under license by Red Hat Inc.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.hibernate.test.typeoverride;

import org.hibernate.Session;
import org.hibernate.cfg.Configuration;
import org.hibernate.dialect.Dialect;
import org.hibernate.dialect.PostgreSQLDialect;
import org.hibernate.type.descriptor.sql.BlobTypeDescriptor;
import org.hibernate.type.descriptor.sql.IntegerTypeDescriptor;
import org.hibernate.type.descriptor.sql.SqlTypeDescriptor;
import org.hibernate.type.descriptor.sql.VarcharTypeDescriptor;

import org.junit.Test;

import org.hibernate.testing.junit4.BaseCoreFunctionalTestCase;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.assertSame;

/**
 * @author Gail Badner
 */
public class TypeOverrideTest extends BaseCoreFunctionalTestCase {
	@Override
	public String[] getMappings() {
		return new String[] { "typeoverride/Entity.hbm.xml" };
	}

	@Override
	public void configure(Configuration cfg) {
		cfg.registerTypeOverride( StoredPrefixedStringType.INSTANCE );
	}

	@Test
	public void testStandardBasicSqlTypeDescriptor() {
		// no override
		assertSame( IntegerTypeDescriptor.INSTANCE, remapSqlTypeDescriptor( IntegerTypeDescriptor.INSTANCE ) );

		// override depends on Dialect.useInputStreamToInsertBlob();
		// Postgresql explicitly overrides BlobTypeDescriptor.DEFAULT
		if ( getDialect().useInputStreamToInsertBlob() ) {
			assertSame(
					BlobTypeDescriptor.STREAM_BINDING,
					getDialect().remapSqlTypeDescriptor( BlobTypeDescriptor.DEFAULT )
			);
		}
		else if ( PostgreSQLDialect.class.isInstance( getDialect() ) )  {
			assertSame(
					BlobTypeDescriptor.BLOB_BINDING,
					getDialect().remapSqlTypeDescriptor( BlobTypeDescriptor.DEFAULT )
			);
		}
		else {
			assertSame(
					BlobTypeDescriptor.DEFAULT,
					getDialect().remapSqlTypeDescriptor( BlobTypeDescriptor.DEFAULT )
			);
		}
	}

	@Test
	public void testNonStandardSqlTypeDescriptor() {
		// no override
		SqlTypeDescriptor sqlTypeDescriptor = new IntegerTypeDescriptor() {
			@Override
			public boolean canBeRemapped() {
				return false;
			}
		};
		assertSame( sqlTypeDescriptor, remapSqlTypeDescriptor( sqlTypeDescriptor ) );
	}

	@Test
	public void testDialectWithNonStandardSqlTypeDescriptor() {
		assertNotSame( VarcharTypeDescriptor.INSTANCE, StoredPrefixedStringType.INSTANCE.getSqlTypeDescriptor() );
		final Dialect dialect = new H2DialectOverridePrefixedVarcharSqlTypeDesc();
		final SqlTypeDescriptor remapped = remapSqlTypeDescriptor( dialect, StoredPrefixedStringType.PREFIXED_VARCHAR_TYPE_DESCRIPTOR );
		assertSame( VarcharTypeDescriptor.INSTANCE, remapped );
	}

	private SqlTypeDescriptor remapSqlTypeDescriptor(SqlTypeDescriptor sqlTypeDescriptor) {
		return remapSqlTypeDescriptor( sessionFactory().getDialect(), sqlTypeDescriptor );
	}

	private SqlTypeDescriptor remapSqlTypeDescriptor(Dialect dialect, SqlTypeDescriptor sqlTypeDescriptor) {
		return dialect.remapSqlTypeDescriptor( sqlTypeDescriptor );
	}

	@Test
	public void testInsert() {
		Session s = openSession();
		s.getTransaction().begin();
		Entity e = new Entity( "name" );
		s.save( e );
		s.getTransaction().commit();
		s.close();

		s = openSession();
		s.getTransaction().begin();
		e = ( Entity ) s.get( Entity.class, e.getId() );
		assertFalse( e.getName().startsWith( StoredPrefixedStringType.PREFIX ) );
		assertEquals( "name", e.getName() );
		s.delete( e );
		s.getTransaction().commit();
		s.close();
	}

	@Test
	public void testRegisteredFunction() {
		Session s = openSession();
		s.getTransaction().begin();
		Entity e = new Entity( "name " );
		s.save( e );
		s.getTransaction().commit();
		s.close();

		s = openSession();
		s.getTransaction().begin();
		e = ( Entity ) s.get( Entity.class, e.getId() );
		assertFalse( e.getName().startsWith( StoredPrefixedStringType.PREFIX ) );
		assertEquals( "name ", e.getName() );
		s.getTransaction().commit();
		s.close();

		s = openSession();
		s.getTransaction().begin();
		s.delete( e );
		s.getTransaction().commit();
		s.close();
	}
}