import type { ManifestUploadFileHashFormat, ManifestUploadRequestEntry } from './manifest-upload';
import type { OptionsUpload } from './upload_interface';
import { Buffer } from 'node:buffer';
import { MANIFEST_UPLOAD_PROTOCOL_VERSION } from './manifest-upload';
/**
 * Offline "delta pack": the exact per-file bytes the online delta upload
 * (`bundle upload --delta`) would send, plus the manifest request entries it
 * would post, so an agent can upload them through signed URLs.
 *
 * Layout (ZIP, STORE / no compression):
 * - `capgo-delta-manifest.json` (see DeltaPackManifest)
 * - `files/<id>`: uploaded bytes for entry `id` (brotli and/or encrypted exactly as uploaded)
 */
export declare const DELTA_PACK_MANIFEST_FILE = "capgo-delta-manifest.json";
export interface DeltaPackEntry extends ManifestUploadRequestEntry {
    /** Path of the uploaded bytes inside the pack. */
    pack_path: string;
}
export interface DeltaPackManifest {
    protocol_version: typeof MANIFEST_UPLOAD_PROTOCOL_VERSION;
    file_hash_format: ManifestUploadFileHashFormat;
    delta_encryption: {
        enabled: boolean;
    };
    /** `compression` is 'none' | 'brotli' (backend manifest upload protocol values; brotli entries end in `.br`). */
    entries: DeltaPackEntry[];
}
export interface DeltaPackResult {
    filename: string;
    manifest: DeltaPackManifest;
}
export interface DeltaPackBundleInput {
    encryptionMethod: 'none' | 'v2' | 'v1';
    finalKeyData: string;
    sessionKey?: Buffer;
    ivSessionKey?: string;
}
/**
 * Build the delta pack with the same steps as the online delta upload:
 * delta encryption settings, manifest generation, then entry preparation
 * (skip rules, brotli rules, encryption, validation, MAX_MANIFEST_ENTRIES).
 * `options` must be the upload-shaped options (with `delta: true`); it is
 * mutated the same way `bundle upload` mutates it (encryptDelta folding).
 */
export declare function writeDeltaPack(filename: string, path: string, bundle: DeltaPackBundleInput, options: OptionsUpload): Promise<DeltaPackResult>;