import org.eclipse.aether.resolution.ArtifactRequest;
import org.eclipse.aether.util.artifact.ArtifactIdUtils;

import static java.util.Objects.requireNonNull;

/**
 * A class building reverse tree using {@link CollectStepData} trace data provided in {@link RepositoryEvent}
 * events fired during collection.
 *
 * @since 3.9.0
 */
class ReverseTreeRepositoryListener extends AbstractRepositoryListener {
    @Override

    /**
     * construct graph from a "dirty" tree
     */
    public MetadataGraph(MetadataTreeNode tree) throws MetadataResolutionException {
        this(tree, false, false);
    }
    // ------------------------------------------------------------------------
    /**
     * construct graph from a "dirty" tree
     *
     * @param tree "dirty" tree root

     * User property for reverse dependency tree. If enabled, Maven will record ".tracking" directory into local
     * repository with "reverse dependency tree", essentially explaining WHY given artifact is present in local
     * repository.
     * Default: {@code false}, will not record anything.
     *
     * @since 3.9.0
     */
    private static final String MAVEN_REPO_LOCAL_RECORD_REVERSE_TREE = "maven.repo.local.recordReverseTree";