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package org.molgenis.data.mapper.meta;

import org.molgenis.data.meta.SystemEntityType;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import static java.util.Objects.requireNonNull;
import static org.molgenis.data.mapper.meta.MapperPackage.PACKAGE_MAPPER;
import static org.molgenis.data.meta.AttributeType.MREF;
import static org.molgenis.data.meta.model.EntityType.AttributeRole.ROLE_ID;
import static org.molgenis.data.meta.model.Package.PACKAGE_SEPARATOR;

@Component
public class EntityMappingMetaData extends SystemEntityType
{
	private static final String SIMPLE_NAME = "EntityMapping";
	public static final String ENTITY_MAPPING = PACKAGE_MAPPER + PACKAGE_SEPARATOR + SIMPLE_NAME;

	public static final String IDENTIFIER = "identifier";
	public static final String SOURCE_ENTITY_TYPE = "sourceEntityType";
	public static final String TARGET_ENTITY_TYPE = "targetEntityType";
	public static final String ATTRIBUTE_MAPPINGS = "attributeMappings";

	private final MapperPackage mapperPackage;
	private final AttributeMappingMetaData attributeMappingMetaData;

	@Autowired
	public EntityMappingMetaData(MapperPackage mapperPackage, AttributeMappingMetaData attributeMappingMetaData)
	{
		super(SIMPLE_NAME, PACKAGE_MAPPER);
		this.mapperPackage = requireNonNull(mapperPackage);
		this.attributeMappingMetaData = requireNonNull(attributeMappingMetaData);
	}

	@Override
	public void init()
	{
		setLabel("Entity mapping");
		setPackage(mapperPackage);

		addAttribute(IDENTIFIER, ROLE_ID);
		addAttribute(SOURCE_ENTITY_TYPE);
		addAttribute(TARGET_ENTITY_TYPE);
		addAttribute(ATTRIBUTE_MAPPINGS).setDataType(MREF).setRefEntity(attributeMappingMetaData)
				.setCascadeDelete(true);
	}
}