/*
 * Copyright (c) 2004-2022, University of Oslo
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * Neither the name of the HISP project nor the names of its contributors may
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.hisp.dhis.category;

import static com.google.common.base.Preconditions.checkNotNull;

import org.hisp.dhis.common.IdentifiableObjectManager;
import org.hisp.dhis.system.deletion.DeletionHandler;
import org.springframework.stereotype.Component;

/**
 * @author Dang Duy Hieu
 */
@Component( "org.hisp.dhis.category.CategoryDeletionHandler" )
public class CategoryDeletionHandler
    extends DeletionHandler
{
    private final IdentifiableObjectManager idObjectManager;

    public CategoryDeletionHandler( IdentifiableObjectManager idObjectManager )
    {
        checkNotNull( idObjectManager );
        this.idObjectManager = idObjectManager;
    }

    @Override
    protected void register()
    {
        whenDeleting( CategoryOption.class, this::deleteCategoryOption );
        whenDeleting( CategoryCombo.class, this::deleteCategoryCombo );
    }

    private void deleteCategoryOption( CategoryOption categoryOption )
    {
        for ( Category category : categoryOption.getCategories() )
        {
            category.getCategoryOptions().remove( categoryOption );
            idObjectManager.updateNoAcl( category );
        }
    }

    private void deleteCategoryCombo( CategoryCombo categoryCombo )
    {
        for ( Category category : categoryCombo.getCategories() )
        {
            category.getCategoryCombos().remove( categoryCombo );
            idObjectManager.updateNoAcl( category );
        }
    }
}
