import { Application, FileManager, FPFile, Relations, ResourceUpdateInfo } from '@foxpage/foxpage-types';
import { ManagerBaseImpl } from '../common';
export declare class FileManagerImpl extends ManagerBaseImpl<FPFile> implements FileManager {
    /**
     * pathname and file id map
     *
     * @private
     */
    private pathnameMap;
    /**
     * fileId and pathname map
     *
     * @private
     */
    private fileMap;
    constructor(app: Application);
    /**
     * add a file
     *
     * @param {FPFile} file file content
     */
    addFile(file: FPFile): FPFile;
    /**
     * remove files
     *
     * @param {string[]} fileIds file ids
     */
    removeFiles(fileIds: string[]): Promise<void>;
    /**
     * get file via pathname
     *
     * @param {string} pathname
     * @return {Promise<FPFile | null>}
     */
    getFileByPathname(pathname: string): Promise<FPFile | null>;
    /**
     * get file by fileId
     * @param fileId file id
     * @returns file
     */
    getFileById(fileId: string, opt?: {
        autoFetch: boolean;
        autoCache?: boolean;
    }): Promise<FPFile | null>;
    /**
     * get pathname via file id
     *
     * @param {string} fileId
     * @return {Promise<string>}
     */
    getPathnameByFileId(fileId: string): Promise<string>;
    protected onPull(data: ResourceUpdateInfo): Promise<void>;
    protected onStash(data: Relations): void;
    protected onFetch(fileIds: string[], opt?: {
        autoCache?: boolean;
    }): Promise<FPFile[]>;
    protected createInstance(data: FPFile): Promise<FPFile>;
    private getPathname;
    private addPathname;
    private removePathname;
    destroy(): void;
}