/*******************************************************************************
* Copyright (c) 2009 Oracle. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0, which accompanies this distribution
* and is available at http://www.eclipse.org/legal/epl-v10.html.
* 
* Contributors:
*     Oracle - initial API and implementation
 *******************************************************************************/
package org.eclipse.jpt.core.tests.internal.jpa2.context.orm;

import java.util.Iterator;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jpt.core.MappingKeys;
import org.eclipse.jpt.core.context.AttributeMapping;
import org.eclipse.jpt.core.context.OneToManyMapping;
import org.eclipse.jpt.core.context.PersistentAttribute;
import org.eclipse.jpt.core.context.orm.OrmPersistentAttribute;
import org.eclipse.jpt.core.context.orm.OrmPersistentType;
import org.eclipse.jpt.core.jpa2.context.OneToManyMapping2_0;
import org.eclipse.jpt.core.jpa2.context.orm.OrmOneToManyMapping2_0;
import org.eclipse.jpt.core.jpa2.context.orm.OrmOrphanRemovable2_0;
import org.eclipse.jpt.core.jpa2.context.orm.OrmOrphanRemovalHolder2_0;
import org.eclipse.jpt.core.resource.java.JPA;
import org.eclipse.jpt.core.resource.orm.XmlOneToMany;
import org.eclipse.jpt.core.tests.internal.jpa2.context.Generic2_0ContextModelTestCase;
import org.eclipse.jpt.core.tests.internal.projects.TestJavaProject.SourceWriter;
import org.eclipse.jpt.utility.internal.iterators.ArrayIterator;

@SuppressWarnings("nls")
public class GenericOrmOneToManyMapping2_0Tests
	extends Generic2_0ContextModelTestCase
{
	public GenericOrmOneToManyMapping2_0Tests(String name) {
		super(name);
	}
	

	private void createTestTargetEntityAddress() throws Exception {
		SourceWriter sourceWriter = new SourceWriter() {
			public void appendSourceTo(StringBuilder sb) {
				sb.append(CR);
					sb.append("import ");
					sb.append(JPA.ENTITY);
					sb.append(";");
					sb.append(CR);
					sb.append("import ");
					sb.append(JPA.ID);
					sb.append(";");
					sb.append(CR);
				sb.append(CR);
				sb.append("@Entity");
				sb.append(CR);
				sb.append("public class ").append("Address").append(" ");
				sb.append("{").append(CR);
				sb.append(CR);
				sb.append("    @Id").append(CR);
				sb.append("    private int id;").append(CR);
				sb.append(CR);
				sb.append("    private String city;").append(CR);
				sb.append(CR);
				sb.append("    private State state;").append(CR);
				sb.append(CR);
				sb.append("    private int zip;").append(CR);
				sb.append(CR);
				sb.append("}").append(CR);
		}
		};
		this.javaProject.createCompilationUnit(PACKAGE_NAME, "Address.java", sourceWriter);
	}
	
	private ICompilationUnit createTestEntityWithValidOneToManyMapping() throws Exception {
		return this.createTestType(new DefaultAnnotationWriter() {
			@Override
			public Iterator<String> imports() {
				return new ArrayIterator<String>(JPA.ENTITY, JPA.ONE_TO_MANY, JPA.ID);
			}
			@Override
			public void appendTypeAnnotationTo(StringBuilder sb) {
				sb.append("@Entity").append(CR);
			}
			
			@Override
			public void appendIdFieldAnnotationTo(StringBuilder sb) {
				sb.append(CR);
				sb.append("    @OneToMany").append(CR);				
				sb.append("    private java.util.Collection<Address> addresses;").append(CR);
				sb.append(CR);
				sb.append("    @Id").append(CR);				
			}
		});
	}
	
	private void createTestEmbeddableState() throws Exception {
		SourceWriter sourceWriter = new SourceWriter() {
			public void appendSourceTo(StringBuilder sb) {
				sb.append(CR);
					sb.append("import ");
					sb.append(JPA.EMBEDDABLE);
					sb.append(";");
					sb.append(CR);
				sb.append("@Embeddable");
				sb.append(CR);
				sb.append("public class ").append("State").append(" ");
				sb.append("{").append(CR);
				sb.append(CR);
				sb.append("    private String foo;").append(CR);
				sb.append(CR);
				sb.append("    private Address address;").append(CR);
				sb.append(CR);
				sb.append("}").append(CR);
		}
		};
		this.javaProject.createCompilationUnit(PACKAGE_NAME, "State.java", sourceWriter);
	}
	
	public void testCandidateMappedByAttributeNames() throws Exception {
		createTestEntityWithValidOneToManyMapping();
		createTestTargetEntityAddress();
		createTestEmbeddableState();
		OrmPersistentType ormPersistentType = getEntityMappings().addPersistentType(MappingKeys.ENTITY_TYPE_MAPPING_KEY, FULLY_QUALIFIED_TYPE_NAME);
		getEntityMappings().addPersistentType(MappingKeys.ENTITY_TYPE_MAPPING_KEY, PACKAGE_NAME + ".Address");
		getEntityMappings().addPersistentType(MappingKeys.EMBEDDABLE_TYPE_MAPPING_KEY, PACKAGE_NAME + ".State");
		ormPersistentType.addSpecifiedAttribute(MappingKeys.ONE_TO_MANY_ATTRIBUTE_MAPPING_KEY, "addresses");

		addXmlClassRef(FULLY_QUALIFIED_TYPE_NAME);
		addXmlClassRef(PACKAGE_NAME + ".Address");
		addXmlClassRef(PACKAGE_NAME + ".State");
		
		PersistentAttribute persistentAttribute = ormPersistentType.attributes().next();
		OneToManyMapping oneToManyMapping = (OneToManyMapping) persistentAttribute.getMapping();

		Iterator<String> attributeNames = 
			oneToManyMapping.getRelationshipReference().getMappedByJoiningStrategy().candidateMappedByAttributeNames();
		assertEquals("id", attributeNames.next());
		assertEquals("city", attributeNames.next());
		assertEquals("state", attributeNames.next());
		assertEquals("state.foo", attributeNames.next());
		assertEquals("state.address", attributeNames.next());
		assertEquals("zip", attributeNames.next());
		assertFalse(attributeNames.hasNext());
		
		oneToManyMapping.setSpecifiedTargetEntity("foo");
		attributeNames = 
			oneToManyMapping.getRelationshipReference().getMappedByJoiningStrategy().candidateMappedByAttributeNames();
		assertFalse(attributeNames.hasNext());
		
		oneToManyMapping.setSpecifiedTargetEntity(null);
		attributeNames = 
			oneToManyMapping.getRelationshipReference().getMappedByJoiningStrategy().candidateMappedByAttributeNames();
		assertEquals("id", attributeNames.next());
		assertEquals("city", attributeNames.next());
		assertEquals("state", attributeNames.next());
		assertEquals("state.foo", attributeNames.next());
		assertEquals("state.address", attributeNames.next());
		assertEquals("zip", attributeNames.next());
		assertFalse(attributeNames.hasNext());
		
		AttributeMapping stateFooMapping = oneToManyMapping.getResolvedTargetEntity().resolveAttributeMapping("state.foo");
		assertEquals("foo", stateFooMapping.getName());
	}
	
	private OrmOrphanRemovable2_0 getOrphanRemovalOf(OneToManyMapping2_0 oneToManyMapping) {
		return ((OrmOrphanRemovalHolder2_0) oneToManyMapping).getOrphanRemoval();
	}
	
	public void testUpdateSpecifiedOrphanRemoval() throws Exception {
		OrmPersistentType ormPersistentType = getEntityMappings().addPersistentType(MappingKeys.ENTITY_TYPE_MAPPING_KEY, "model.Foo");
		OrmPersistentAttribute ormPersistentAttribute = ormPersistentType.addSpecifiedAttribute(MappingKeys.ONE_TO_MANY_ATTRIBUTE_MAPPING_KEY, "oneToManyMapping");
		OrmOneToManyMapping2_0 ormOneToManyMapping = (OrmOneToManyMapping2_0) ormPersistentAttribute.getMapping();
		OrmOrphanRemovable2_0 mappingsOrphanRemoval = this.getOrphanRemovalOf(ormOneToManyMapping);
		XmlOneToMany oneToManyResource = getXmlEntityMappings().getEntities().get(0).getAttributes().getOneToManys().get(0);
		
		assertEquals(null, mappingsOrphanRemoval.getSpecifiedOrphanRemoval());
		assertEquals(null, oneToManyResource.getOrphanRemoval());
				
		//set enumerated in the resource model, verify context model updated
		oneToManyResource.setOrphanRemoval(Boolean.TRUE);
		assertEquals(Boolean.TRUE, mappingsOrphanRemoval.getSpecifiedOrphanRemoval());
		assertEquals(Boolean.TRUE, oneToManyResource.getOrphanRemoval());
	
		oneToManyResource.setOrphanRemoval(Boolean.FALSE);
		assertEquals(Boolean.FALSE, mappingsOrphanRemoval.getSpecifiedOrphanRemoval());
		assertEquals(Boolean.FALSE, oneToManyResource.getOrphanRemoval());
	}
	
	public void testModifySpecifiedOrphanRemoval() throws Exception {
		OrmPersistentType ormPersistentType = getEntityMappings().addPersistentType(MappingKeys.ENTITY_TYPE_MAPPING_KEY, "model.Foo");
		OrmPersistentAttribute ormPersistentAttribute = ormPersistentType.addSpecifiedAttribute(MappingKeys.ONE_TO_MANY_ATTRIBUTE_MAPPING_KEY, "oneToManyMapping");
		OrmOneToManyMapping2_0 ormOneToManyMapping = (OrmOneToManyMapping2_0) ormPersistentAttribute.getMapping();
		OrmOrphanRemovable2_0 mappingsOrphanRemoval = this.getOrphanRemovalOf(ormOneToManyMapping);
		XmlOneToMany oneToManyResource = getXmlEntityMappings().getEntities().get(0).getAttributes().getOneToManys().get(0);
		
		assertEquals(null, mappingsOrphanRemoval.getSpecifiedOrphanRemoval());
		assertEquals(null, oneToManyResource.getOrphanRemoval());
				
		//set enumerated in the context model, verify resource model updated
		mappingsOrphanRemoval.setSpecifiedOrphanRemoval(Boolean.TRUE);
		assertEquals(Boolean.TRUE, oneToManyResource.getOrphanRemoval());
		assertEquals(Boolean.TRUE, mappingsOrphanRemoval.getSpecifiedOrphanRemoval());
	
		mappingsOrphanRemoval.setSpecifiedOrphanRemoval(Boolean.FALSE);
		assertEquals(Boolean.FALSE, oneToManyResource.getOrphanRemoval());
		assertEquals(Boolean.FALSE, mappingsOrphanRemoval.getSpecifiedOrphanRemoval());
	}
}