import { CID } from 'multiformats/cid';
import type { Applog, ApplogArrayMaybeEncryptedRO, ApplogArrayNoCIDMaybeEncryptedRO } from '../applog/datom-types.ts';
import { BlockStoreish } from '../ipfs/car.ts';
import { ApplogsOrThread, Thread } from '../thread.ts';
import type { AppAgent, IShare, SnapBlockChunks, SnapBlockLogsOrChunks } from './pubsub-types.ts';
export declare function prepareSnapshotForPush(agent: AppAgent, appThread: Thread, threadToPublish: ApplogsOrThread, share: IShare, prevSnapCID: CID | null, prevCounter: number | null): Promise<{
    cid: CID<any, 297, 18, 1>;
    blob: Blob;
    blocks: import("multiformats").BlockView<any, 297, 18, 1>[];
    infoLogCids: CID<any, 297, 18, 1>[];
    applogCids: CID<any, 297, 18, 1>[];
}>;
/**
 * @param applogs Encrypted or plain applogs
 * @returns Car file
 */
export declare function encodeSnapshotAsCar(agent: AppAgent, applogs: ApplogArrayNoCIDMaybeEncryptedRO, infoLogs: readonly Applog[], prevSnapCID: CID | null, prevCounter: number | null): Promise<{
    cid: CID<any, 297, 18, 1>;
    blob: Blob;
    blocks: import("multiformats").BlockView<any, 297, 18, 1>[];
    infoLogCids: CID<any, 297, 18, 1>[];
    applogCids: CID<any, 297, 18, 1>[];
}>;
/** (i) IPFS has a block size limit of 1MB - which is about 15K CIDs */
export declare function chunkApplogs(applogCids: CID<unknown, 297, 18, 1>[], size?: number): Promise<{
    rootCID: any;
    blocks: any[];
    chunks?: undefined;
} | {
    rootCID: CID<any, 297, 18, 1>;
    blocks: any[];
    chunks: any[];
}>;
export declare function unchunkApplogsBlock(block: SnapBlockLogsOrChunks | null | undefined, blockStore: BlockStoreish): Promise<CID[]>;
export declare function isSnapBlockChunks(block: SnapBlockLogsOrChunks | null | undefined): block is SnapBlockChunks;
/**
 * @param applogs Encrypted or plain applogs
 * @returns Car file
 */
export declare function encodeSnapshotApplogsAsCar(applogs: ApplogArrayMaybeEncryptedRO): Promise<Blob>;
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