import { FnConfigService } from '../fn.config/fn.config.service';
import { FnLoggerService } from '../fn.logger/fn.logger.service';
export interface IUploadFileParams {
    amazonS3Bucket?: string;
    metadata?: Record<string, string>;
    contentType?: string;
    tagging?: string;
}
export declare class FnStorageService {
    private readonly _config;
    private readonly _log;
    private readonly _s3Configuration;
    private readonly _storageProvider;
    constructor(_config: FnConfigService, _log: FnLoggerService);
    get storageProvider(): string;
    uploadAttachedPhoto(fileByteArray: Buffer, fileKey: string): Promise<any>;
    uploadAttachedAudio(fileByteArray: Buffer, fileKey: string): Promise<any>;
    uploadAttachedVideo(fileByteArray: Buffer, fileKey: string): Promise<any>;
    downloadAttachedPhoto(fileKey: string): Promise<any>;
    deleteAttachedPhoto(fileKey: string): Promise<any>;
    uploadFile(fileByteArray: Buffer, fileKey: string, params?: IUploadFileParams): Promise<any>;
    downloadFile(fileKey: string, bucketName: string): Promise<any>;
    private _amazonUploadAttachedPhoto;
    private _amazonDownloadAttachedPhoto;
    private _amazonDeleteAttachedPhoto;
    private _amazonUploadAttachedAudio;
    private _amazonUploadAttachedVideo;
    private _amazonUploadFile;
    private _amazonDownloadFile;
}