/*!
 * Copyright (c) Microsoft Corporation and contributors. All rights reserved.
 * Licensed under the MIT License.
 */
import type { WebApi } from "azure-devops-node-api";
import type { BundleComparisonResult } from "../BundleBuddyTypes";
import type { IADOConstants } from "./Constants";
export declare class ADOSizeComparator {
    /**
     * ADO constants identifying where to fetch baseline bundle info
     */
    private readonly adoConstants;
    /**
     * The ADO connection to use to fetch baseline bundle info
     */
    private readonly adoConnection;
    /**
     * Path to existing local bundle size reports
     */
    private readonly localReportPath;
    /**
     * Optional current PR build id to use, such as to tag for
     * later update when the baseline build has not completed
     */
    private readonly adoBuildId;
    /**
     * Option to do fallback on commits when either there is no associated CI build or
     * it does not have the needed artifacts.  Fallback is not attempted for other
     * issues, such as for a failed (but still present) CI build.  This generator is
     * only used for fallback (it should not provide the first commit to check)
     */
    private readonly getFallbackCommit;
    /**
     * The default number of most recent builds on the ADO pipeline to search when
     * looking for a build matching a baseline commit, and the default number of
     * fallback commits returned by the provided default fallback generator.  The
     * most recent builds may not necessarily match the chain of commits, but
     * typically will when the pipeline only builds commits to main.
     */
    private static readonly defaultBuildsToSearch;
    constructor(
    /**
     * ADO constants identifying where to fetch baseline bundle info
     */
    adoConstants: IADOConstants, 
    /**
     * The ADO connection to use to fetch baseline bundle info
     */
    adoConnection: WebApi, 
    /**
     * Path to existing local bundle size reports
     */
    localReportPath: string, 
    /**
     * Optional current PR build id to use, such as to tag for
     * later update when the baseline build has not completed
     */
    adoBuildId: number | undefined, 
    /**
     * Option to do fallback on commits when either there is no associated CI build or
     * it does not have the needed artifacts.  Fallback is not attempted for other
     * issues, such as for a failed (but still present) CI build.  This generator is
     * only used for fallback (it should not provide the first commit to check)
     */
    getFallbackCommit?: ((startingCommit: string) => Generator<string>) | undefined);
    /**
     * Naive fallback generator provided for convenience.  It yields the commit directly
     * prior to the previous commit.
     */
    static naiveFallbackCommitGenerator(startingCommit: string): Generator<string>;
    /**
     * Create a size comparison message that can be posted to a PR
     * @param tagWaiting - If the build should be tagged to be updated when the baseline
     * build completes (if it wasn't already complete when the comparison runs)
     * @returns The size comparison result with formatted message and raw data.  In case
     * of failure, the message contains the error message and the raw data will be undefined.
     */
    createSizeComparisonMessage(tagWaiting: boolean): Promise<BundleComparisonResult>;
    private tagBuildAsWaiting;
    private createComparisonFromZip;
}
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