/*!
 * DOCX Engine v0.8.0
 * Proprietary software. Copyright © 2026 Harbour Enterprises, Inc., d/b/a SuperDoc.
 * Use governed by the DOCX Engine Proprietary License Agreement.
 * No reverse engineering, deobfuscation, redistribution,
 * AI-assisted reconstruction, or competitive cloning.
 * License: https://docs.superdoc.dev/resources/docx-engine-license
 */
/**
 * Dist-only Node build input for `superdoc/collaboration-upgrade-engine`.
 *
 * The customer-facing `superdoc` package bundles this implementation into its
 * own public subpath. Internal v2 packages and types must not escape through
 * this contract.
 */
export declare const COLLABORATION_UPGRADE_ENGINE_PROTOCOL_VERSION: 1;
export declare const SUPPORTED_COLLABORATION_UPGRADE_BUNDLE_VERSIONS: readonly [1];
export declare const SUPPORTED_V1_READER_CONTRACT_VERSIONS: readonly [1];
export declare const COLLABORATION_UPGRADE_ENGINE_MINIMUM_NODE_MAJOR: 20;
export interface CollaborationUpgradeEngineInfo {
    readonly engine: "superdoc-v2-collaboration-upgrade";
    readonly protocolVersion: 1;
    readonly superdocVersion: string;
    readonly roomSchemaVersion: Readonly<{
        readonly major: number;
        readonly minor: number;
    }>;
    readonly artifactVersion: 1;
    readonly supportedBundleVersions: readonly [1];
    readonly supportedV1ReaderContractVersions: readonly [1];
    readonly minimumNodeMajor: 20;
}
export interface UpgradeBundleLimits {
    readonly maxBundleBytes?: number;
    readonly maxEntryCount?: number;
    readonly maxEntryBytes?: number;
    readonly maxTotalUncompressedBytes?: number;
    readonly maxCompressionRatio?: number;
    readonly maxManifestBytes?: number;
}
export interface V2UpgradeArtifactLimits {
    readonly maxCarrierDocxBytes?: number;
    readonly maxEncodedUpdateBytes?: number;
    readonly maxContentUnits?: number;
}
export interface V2UpgradePackageComparison {
    readonly equal: boolean;
    readonly expectedPartCount: number;
    readonly actualPartCount: number;
    readonly missingParts: ReadonlyArray<string>;
    readonly unexpectedParts: ReadonlyArray<string>;
    readonly changedParts: ReadonlyArray<string>;
    readonly semanticChangedParts: ReadonlyArray<string>;
    readonly protectedChangedParts: ReadonlyArray<string>;
}
export interface V2UpgradeOfflineValidation {
    readonly ok: true;
    readonly binaryMode: "inline";
    readonly classification: "v2-committed";
    readonly contentDigest: string;
    readonly contentUnitCount: number;
    readonly rebuiltUpdateSha256: string;
    readonly builderExportSha256: string;
    readonly freshExportSha256: string;
    readonly carrierToFreshPackage: V2UpgradePackageComparison;
    readonly builderToFreshPackage: V2UpgradePackageComparison;
}
export interface CompleteV2CollaborationUpgradeArtifact {
    readonly schemaVersion: 1;
    readonly migrationId: string;
    readonly targetRootId: string;
    readonly providerRoomName: string;
    readonly sourceCarrierSha256: string;
    readonly normalizedCarrierSha256: string;
    readonly updateSha256: string;
    readonly updateByteLength: number;
    readonly update: Uint8Array;
    readonly contentDigest: string;
    readonly contentUnitIds: ReadonlyArray<string>;
    readonly validation: V2UpgradeOfflineValidation;
}
export interface BuildV2CollaborationUpgradeArtifactFromBundleInput {
    readonly bundle: Uint8Array;
    readonly expectedBundleSha256?: string;
    readonly targetRootId: string;
    readonly migrationToolVersion: string;
    readonly filename?: string | null;
    readonly bundleLimits?: UpgradeBundleLimits;
    readonly artifactLimits?: V2UpgradeArtifactLimits;
}
export interface ValidateV2CollaborationUpgradeTargetInput {
    readonly bundle: Uint8Array;
    readonly expectedBundleSha256?: string;
    readonly bundleLimits?: UpgradeBundleLimits;
    readonly update: Uint8Array;
    readonly targetRootId: string;
    readonly expectedUpdateSha256: string;
    readonly expectedContentDigest: string;
    readonly migrationToolVersion: string;
    readonly reopenBuffer?: Uint8Array;
}
export interface V2CollaborationUpgradeTargetValidation {
    readonly ok: true;
    readonly updateSha256: string;
    readonly contentDigest: string;
    readonly freshExportSha256: string;
    readonly carrierToFreshPackage: V2UpgradePackageComparison;
}
export declare function getCollaborationUpgradeEngineInfo(): CollaborationUpgradeEngineInfo;
export declare function buildV2CollaborationUpgradeArtifactFromBundle(input: BuildV2CollaborationUpgradeArtifactFromBundleInput): Promise<CompleteV2CollaborationUpgradeArtifact>;
export declare function validateV2CollaborationUpgradeTarget(input: ValidateV2CollaborationUpgradeTargetInput): Promise<V2CollaborationUpgradeTargetValidation>;