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 * JBoss, Home of Professional Open Source.
 *
 * Copyright 2024 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.jboss.resteasy.spi.multipart;

import java.util.List;
import java.util.Optional;

import jakarta.ws.rs.core.EntityPart;

/**
 * Represents the entity parts of {@code multipart/form-data} content.
 *
 * @author <a href="mailto:jperkins@redhat.com">James R. Perkins</a>
 */
@FunctionalInterface
public interface MultipartContent {

    /**
     * Returns the entity parts for multipart/form-data types.
     *
     * @return the entity parts or an empty list.
     */
    List<EntityPart> entityParts();

    /**
     * Returns the optional {@linkplain EntityPart entity part} for a {@code multipart/form-data} request.
     *
     * @param name the name of the entity part
     *
     * @return an optional entity part for the name
     */
    default Optional<EntityPart> entityPart(final String name) {
        return entityParts()
                .stream()
                .filter((e) -> name.equals(e.getName()))
                .findFirst();
    }
}
