/*
 * Copyright 2017 the original author or authors.
 *
 * 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.gradle.api.internal.artifacts;

import org.gradle.api.Action;
import org.gradle.api.artifacts.transform.VariantTransform;
import org.gradle.api.internal.artifacts.transform.TransformationStep;
import org.gradle.api.internal.attributes.AttributeContainerInternal;

public interface VariantTransformRegistry {

    /**
     * Register an artifact transformation.
     *
     * @see VariantTransform
     */
    void registerTransform(Action<? super VariantTransform> registrationAction);

    Iterable<Registration> getTransforms();

    interface Registration {
        /**
         * Attributes that match the variant that is consumed.
         */
        AttributeContainerInternal getFrom();

        /**
         * Attributes that match the variant that is produced.
         */
        AttributeContainerInternal getTo();

        /**
         * Transformation for artifacts of the variant.
         */
        TransformationStep getTransformationStep();
    }
}
