import { HttpClient } from '@angular/common/http';
import { Observable } from 'rxjs';
import { FileStorageConfiguration, FileStorageFormData, FileStoragePresignedPostToken, FileStorageUploadResult } from '../interfaces';
import * as i0 from "@angular/core";
export declare class FileStorageService {
    private fileStorageConfiguration;
    private http;
    constructor(fileStorageConfiguration: FileStorageConfiguration, http: HttpClient);
    /**
     * Get presigned upload url to upload a file into storage
     *
     * @param mimeType - MIME type of the file to upload
     * @param fileSize - Size of the file to upload
     * @returns Observable that resolve into a presigned post token
     */
    getPresignedUploadUrl(mimeType: string, fileSize: number): Observable<FileStoragePresignedPostToken>;
    /**
     * Get presigned download url to download a file to storage
     *
     * @param file - Path of the file to download
     * @returns Observable that resolve into a presigned post token
     */
    getPresignedDownloadUrl(file: string): Observable<{
        url: string;
    }>;
    /**
     * Generate form data from presigned post token and file
     * to upload
     *
     * @param presignedPostToken - Presigned post token to build form data
     * @param file - File to upload
     * @returns Form data instance that must be sent to data storage
     */
    generateFormData(rawFormData: FileStorageFormData, file: File): FormData;
    /**
     * Upload a file to file storage using presigned url
     *
     * @param file - File to upload to file storage
     * @param reportProgress - Option to report request progress
     * @returns Observable that resolves as a temporary url of the uploaded file
     */
    uploadFileToFileStorage(file: File, reportProgress?: boolean): Observable<FileStorageUploadResult>;
    /**
     * Return the url of an uploaded file, calculated from the upload url
     * and the file key
     *
     * @param postURL - Upload url of the file
     * @param fileKey - Key of the uploaded file
     * @returns the public url of the uploaded file
     */
    getUploadFileUrl(postURL: string, fileKey: string): string;
    static ɵfac: i0.ɵɵFactoryDeclaration<FileStorageService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<FileStorageService>;
}