/*******************************************************************************
 * Copyright (c) 2007, 2008 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.eclipselink.core.tests.internal.context.java;

import java.util.Iterator;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jpt.core.context.BasicMapping;
import org.eclipse.jpt.core.context.PersistentAttribute;
import org.eclipse.jpt.core.resource.java.JPA;
import org.eclipse.jpt.core.resource.java.JavaResourcePersistentAttribute;
import org.eclipse.jpt.core.resource.java.JavaResourcePersistentType;
import org.eclipse.jpt.eclipselink.core.context.Convert;
import org.eclipse.jpt.eclipselink.core.context.StructConverter;
import org.eclipse.jpt.eclipselink.core.resource.java.EclipseLinkJPA;
import org.eclipse.jpt.eclipselink.core.resource.java.StructConverterAnnotation;
import org.eclipse.jpt.utility.internal.iterators.ArrayIterator;

public class EclipseLinkJavaStructConverterTests extends EclipseLinkJavaContextModelTestCase
{

	private void createConvertAnnotation() throws Exception{
		this.createAnnotationAndMembers(EclipseLinkJPA.PACKAGE, "Convert", "String value() default \"none\";");		
	}
	
	private void createStructConverterAnnotation() throws Exception {
		this.createAnnotationAndMembers(EclipseLinkJPA.PACKAGE, "StructConverter", "String name(); String converter()");		
	}

	
	private ICompilationUnit createTestEntityWithConvertAndStructConverter() throws Exception {
		createConvertAnnotation();
		createStructConverterAnnotation();
		return this.createTestType(new DefaultAnnotationWriter() {
			@Override
			public Iterator<String> imports() {
				return new ArrayIterator<String>(JPA.ENTITY, EclipseLinkJPA.CONVERT, EclipseLinkJPA.STRUCT_CONVERTER);
			}
			@Override
			public void appendTypeAnnotationTo(StringBuilder sb) {
				sb.append("@Entity");
			}
			
			@Override
			public void appendIdFieldAnnotationTo(StringBuilder sb) {
				sb.append("@Convert(\"foo\")").append(CR);
				sb.append("    @StructConverter(name=\"foo\"");
			}
		});
	}
	
	private ICompilationUnit createTestEntityWithConvertAndStructConverterClass() throws Exception {
		createConvertAnnotation();
		createStructConverterAnnotation();
		return this.createTestType(new DefaultAnnotationWriter() {
			@Override
			public Iterator<String> imports() {
				return new ArrayIterator<String>(JPA.ENTITY, EclipseLinkJPA.CONVERT, EclipseLinkJPA.STRUCT_CONVERTER);
			}
			@Override
			public void appendTypeAnnotationTo(StringBuilder sb) {
				sb.append("@Entity");
			}
			
			@Override
			public void appendIdFieldAnnotationTo(StringBuilder sb) {
				sb.append("@Convert(\"foo\")").append(CR);
				sb.append("    @StructConverter(converter=\"Foo\"");
			}
		});
	}
	
	public EclipseLinkJavaStructConverterTests(String name) {
		super(name);
	}


	public void testGetName() throws Exception {
		createTestEntityWithConvertAndStructConverter();
		addXmlClassRef(FULLY_QUALIFIED_TYPE_NAME);
		
		PersistentAttribute persistentAttribute = javaPersistentType().attributes().next();
		BasicMapping basicMapping = (BasicMapping) persistentAttribute.getMapping();
		Convert eclipseLinkConvert = (Convert) basicMapping.getConverter();
		StructConverter converter = (StructConverter) eclipseLinkConvert.getConverter();
		
		assertEquals("foo", converter.getName());
	}

	public void testSetName() throws Exception {
		createTestEntityWithConvertAndStructConverter();
		addXmlClassRef(FULLY_QUALIFIED_TYPE_NAME);
		
		PersistentAttribute persistentAttribute = javaPersistentType().attributes().next();
		BasicMapping basicMapping = (BasicMapping) persistentAttribute.getMapping();
		Convert eclipseLinkConvert = (Convert) basicMapping.getConverter();
		StructConverter converter = (StructConverter) eclipseLinkConvert.getConverter();
		assertEquals("foo", converter.getName());
		
		converter.setName("bar");
		assertEquals("bar", converter.getName());
			
		JavaResourcePersistentType typeResource = jpaProject().getJavaResourcePersistentType(FULLY_QUALIFIED_TYPE_NAME);
		JavaResourcePersistentAttribute attributeResource = typeResource.persistableAttributes().next();
		StructConverterAnnotation converterAnnotation = (StructConverterAnnotation) attributeResource.getSupportingAnnotation(StructConverterAnnotation.ANNOTATION_NAME);		
		assertEquals("bar", converterAnnotation.getName());

		
		converter.setName(null);
		assertEquals(null, converter.getName());
		converterAnnotation = (StructConverterAnnotation) attributeResource.getSupportingAnnotation(StructConverterAnnotation.ANNOTATION_NAME);		
		assertEquals(null, converterAnnotation.getName());


		converter.setName("bar");
		assertEquals("bar", converter.getName());
		converterAnnotation = (StructConverterAnnotation) attributeResource.getSupportingAnnotation(StructConverterAnnotation.ANNOTATION_NAME);		
		assertEquals("bar", converterAnnotation.getName());
	}
	
	public void testGetNameUpdatesFromResourceModelChange() throws Exception {
		createTestEntityWithConvertAndStructConverter();
		addXmlClassRef(FULLY_QUALIFIED_TYPE_NAME);
				
		PersistentAttribute persistentAttribute = javaPersistentType().attributes().next();
		BasicMapping basicMapping = (BasicMapping) persistentAttribute.getMapping();
		Convert eclipseLinkConvert = (Convert) basicMapping.getConverter();
		StructConverter converter = (StructConverter) eclipseLinkConvert.getConverter();

		assertEquals("foo", converter.getName());
		
		JavaResourcePersistentType typeResource = jpaProject().getJavaResourcePersistentType(FULLY_QUALIFIED_TYPE_NAME);
		JavaResourcePersistentAttribute attributeResource = typeResource.persistableAttributes().next();
		StructConverterAnnotation converterAnnotation = (StructConverterAnnotation) attributeResource.getSupportingAnnotation(StructConverterAnnotation.ANNOTATION_NAME);
		converterAnnotation.setName("bar");
		assertEquals("bar", converter.getName());
		
		attributeResource.removeSupportingAnnotation(StructConverterAnnotation.ANNOTATION_NAME);
		assertEquals(null, eclipseLinkConvert.getConverter());
		
		converterAnnotation = (StructConverterAnnotation) attributeResource.addSupportingAnnotation(StructConverterAnnotation.ANNOTATION_NAME);		
		assertNotNull(eclipseLinkConvert.getConverter());
		
		converterAnnotation.setName("FOO");
		assertEquals("FOO", eclipseLinkConvert.getConverter().getName());	
	}
	

	public void testGetConverterClass() throws Exception {
		createTestEntityWithConvertAndStructConverterClass();
		addXmlClassRef(FULLY_QUALIFIED_TYPE_NAME);
		
		PersistentAttribute persistentAttribute = javaPersistentType().attributes().next();
		BasicMapping basicMapping = (BasicMapping) persistentAttribute.getMapping();
		Convert eclipseLinkConvert = (Convert) basicMapping.getConverter();
		StructConverter converter = (StructConverter) eclipseLinkConvert.getConverter();
		
		assertEquals("Foo", converter.getConverterClass());
	}

	public void testSetConverterClass() throws Exception {
		createTestEntityWithConvertAndStructConverterClass();
		addXmlClassRef(FULLY_QUALIFIED_TYPE_NAME);
		
		PersistentAttribute persistentAttribute = javaPersistentType().attributes().next();
		BasicMapping basicMapping = (BasicMapping) persistentAttribute.getMapping();
		Convert eclipseLinkConvert = (Convert) basicMapping.getConverter();
		StructConverter converter = (StructConverter) eclipseLinkConvert.getConverter();
		assertEquals("Foo", converter.getConverterClass());
		
		converter.setConverterClass("Bar");
		assertEquals("Bar", converter.getConverterClass());
			
		JavaResourcePersistentType typeResource = jpaProject().getJavaResourcePersistentType(FULLY_QUALIFIED_TYPE_NAME);
		JavaResourcePersistentAttribute attributeResource = typeResource.persistableAttributes().next();
		StructConverterAnnotation converterAnnotation = (StructConverterAnnotation) attributeResource.getSupportingAnnotation(StructConverterAnnotation.ANNOTATION_NAME);		
		assertEquals("Bar", converterAnnotation.getConverter());

		
		converter.setConverterClass(null);
		assertEquals(null, converter.getConverterClass());
		converterAnnotation = (StructConverterAnnotation) attributeResource.getSupportingAnnotation(StructConverterAnnotation.ANNOTATION_NAME);		
		assertEquals(null, converterAnnotation.getConverter());


		converter.setConverterClass("Bar");
		assertEquals("Bar", converter.getConverterClass());
		converterAnnotation = (StructConverterAnnotation) attributeResource.getSupportingAnnotation(StructConverterAnnotation.ANNOTATION_NAME);		
		assertEquals("Bar", converterAnnotation.getConverter());
	}
	
	public void testGetConverterClassUpdatesFromResourceModelChange() throws Exception {
		createTestEntityWithConvertAndStructConverterClass();
		addXmlClassRef(FULLY_QUALIFIED_TYPE_NAME);
				
		PersistentAttribute persistentAttribute = javaPersistentType().attributes().next();
		BasicMapping basicMapping = (BasicMapping) persistentAttribute.getMapping();
		Convert eclipseLinkConvert = (Convert) basicMapping.getConverter();
		StructConverter converter = (StructConverter) eclipseLinkConvert.getConverter();

		assertEquals("Foo", converter.getConverterClass());
		
		JavaResourcePersistentType typeResource = jpaProject().getJavaResourcePersistentType(FULLY_QUALIFIED_TYPE_NAME);
		JavaResourcePersistentAttribute attributeResource = typeResource.persistableAttributes().next();
		StructConverterAnnotation converterAnnotation = (StructConverterAnnotation) attributeResource.getSupportingAnnotation(StructConverterAnnotation.ANNOTATION_NAME);
		converterAnnotation.setConverter("Bar");
		assertEquals("Bar", converter.getConverterClass());
		
		attributeResource.removeSupportingAnnotation(StructConverterAnnotation.ANNOTATION_NAME);
		assertEquals(null, eclipseLinkConvert.getConverter());
		
		converterAnnotation = (StructConverterAnnotation) attributeResource.addSupportingAnnotation(StructConverterAnnotation.ANNOTATION_NAME);		
		assertNotNull(eclipseLinkConvert.getConverter());
		
		converterAnnotation.setConverter("FooBar");
		assertEquals("FooBar", ((StructConverter) eclipseLinkConvert.getConverter()).getConverterClass());	
	}
}