import stream, { Readable } from 'stream';
import { UploadFileType } from '../types/upload-file.type';
import { StorageAdapter } from '../interfaces/storage-adapter.interface';
import { BlobStorageProperties } from '../types/blob-storage-properties.type';
import { BlobUploadHeaders } from '../types/blob-upload-headers.type';
import { BlobSASSignatureValues } from '@azure/storage-blob';
import { ImageDetailType } from '../types/image-detail.type';
import { OptionUploadFileType } from '../types/option-upload-file.type';
import { BlobClient } from '../types/blob-client.type';
import { ImageFormatEnum } from '../enums/image-format.enum';
import { ImageWithThumbnailType } from '../types/image-with-thumbnail.type';
export declare class StorageService {
    private storage;
    static instance: StorageService;
    constructor(storage: StorageAdapter);
    uploadFile(file: UploadFileType, options?: OptionUploadFileType): Promise<BlobClient>;
    uploadStream(stream: Readable, fileName: string): Promise<BlobClient>;
    copyFileFromUrl(url: string, blobName: string, isPublic?: boolean): any;
    getFileUrl(blobName: string, expiresOn?: Date, options?: Partial<BlobSASSignatureValues>): string | Promise<string>;
    getPublicUrl(blobName: string): string;
    deleteIfExists(blobName: string): Promise<void>;
    deleteFile(blobName: string): Promise<void>;
    uploadBlobreadable(readable: stream.Readable, blobName: string, httpHeaders?: BlobUploadHeaders): any;
    createBufferFromBlob(blobName: string): Promise<Buffer>;
    zipFiles(files: {
        blobName: string;
        fileName: string;
    }[]): Promise<Buffer>;
    resizeImage(image: any, percentage?: number): Promise<Buffer>;
    uploadImageWithThumbnail(image: any, fileName?: string): Promise<ImageWithThumbnailType>;
    getFileStream(blobName: string): Promise<NodeJS.ReadableStream>;
    getFileBuffer(blobName: string): Promise<Buffer>;
    getRetrieveFileName(blobName: string): string;
    getProperties(blobName: string): Promise<BlobStorageProperties>;
    convertImagesToPng(data: UploadFileType, imageFormat: ImageFormatEnum): Promise<ImageDetailType>;
    validateFileImageConvert(mimetype: string): boolean;
}