import { DateTime } from 'luxon';
import { DockerHubAPIRepo, DockerHubRepo, DockerManifestList, Tag } from '../types/DockerHubRepo';
/**
 * The OCI distribution spec requires a unique token for each repo manifest queried.
 */
export declare const fetchDockerHubToken: (repo: DockerHubRepo) => Promise<string>;
/**
 * Pure function that massages the Docker Hub API response into the
 * format we want to return. e.g., only extracting certain fields;
 * converting snake_case to camelCase, etc.
 */
export declare const extractRepositoryDetails: (repos: DockerHubAPIRepo[], lastUpdatedSince?: DateTime | undefined) => DockerHubRepo[];
/**
 * Query a single repository given a repo name and username.
 *
 * @param user The DockerHub username or org name to query for.
 * @param name The DockerHub repo name -- restrict to this single repo.
 */
export declare const queryRepo: ({ name, user, }: {
    name: string;
    user: string;
}) => Promise<DockerHubRepo | undefined>;
/**
 * Top-level function for querying repositories.
 *
 * @TODO Rename to just `queryRepos`.
 *
 * @param user The DockerHub username or org name to query for.
 * @param numRepos The number of repos to query (max 100).
 * @param lastUpdatedSince Filter by the DateTime at which a repo was last updated.
 */
export declare const queryTopRepos: ({ lastUpdatedSince, numRepos, user, }: {
    lastUpdatedSince?: DateTime | undefined;
    numRepos?: number | undefined;
    user: string;
}) => Promise<DockerHubRepo[]>;
/**
 * Query image tags.
 */
export declare const queryTags: (repo: DockerHubRepo) => Promise<Tag[] | undefined>;
/**
 * Queries the Docker Hub API to retrieve a "fat manifest", an object of
 * `Content-Type` `application/vnd.docker.distribution.manifest.list.v2+json/`.
 * Read up on the Manifest v2, Schema 2 Spec in more detail:
 * @see https://github.com/docker/distribution/blob/master/docs/spec/manifest-v2-2.md
 * Or the shiny new OCI distribution spec which builds on it:
 * @see https://github.com/opencontainers/distribution-spec/blob/f67bc11ba3a083a9c62f8fa53ad14c5bcf2116af/spec.md
 */
export declare const fetchManifestList: (repo: DockerHubRepo) => Promise<DockerManifestList | undefined>;