import type { InboxFileMeta } from '../../shared/inbox.js';
import type { DownloadableSlackFile } from './slack.helper.js';
export declare const MANUAL_FETCH_BYTES: number;
interface DownloadSlackFileInput {
    token: string;
    urlPrivate: string;
    destPath: string;
    maxBytes: number;
    fetchImpl?: typeof fetch;
}
export declare function downloadSlackFile(input: DownloadSlackFileInput): Promise<{
    sizeBytes: number;
}>;
export type CachedSlackFile = InboxFileMeta & {
    localPath: string;
};
export interface SlackCachedFileRead {
    bytes: Buffer;
    contentType: string;
    filename: string;
    sizeBytes: number;
}
export declare class SlackFileService {
    findCachedFile(input: {
        teamId: string;
        fileId: string;
    }): Promise<string | undefined>;
    readCachedFile(input: {
        teamId: string;
        fileId: string;
    }): Promise<SlackCachedFileRead | undefined>;
    downloadToCache(input: {
        file: DownloadableSlackFile;
        teamId: string;
        token: string;
    }): Promise<CachedSlackFile | (InboxFileMeta & {
        downloadError: string;
    })>;
}
export declare function cachedSlackFilePath(input: {
    teamId: string;
    fileId: string;
    name: string;
}): string;
export declare const defaultSlackFileService: SlackFileService;
export {};
//# sourceMappingURL=slack-file.service.d.ts.map