import { OnModuleInit } from "@nestjs/common";
import { AssetsConfigService } from "./config";
import { PresignedDownloadUrlRequestDto, PresignedDownloadUrlResponseDto, PresignedUploadUrlRequestDto, PresignedUploadUrlResponseDto } from "./dto";
import { MinIOService } from "./minio";
import { OSSService } from "./oss";
import { S3Service } from "./s3";
export declare class AssetsService implements OnModuleInit {
    private readonly assetsConfigService;
    private readonly s3Service;
    private readonly ossService;
    private readonly minioService;
    private readonly logger;
    constructor(assetsConfigService: AssetsConfigService, s3Service: S3Service, ossService: OSSService, minioService: MinIOService);
    onModuleInit(): void;
    private getCurrentProvider;
    generatePresignedUploadUrl(request: PresignedUploadUrlRequestDto): Promise<PresignedUploadUrlResponseDto>;
    generatePresignedDownloadUrl(request: PresignedDownloadUrlRequestDto): Promise<PresignedDownloadUrlResponseDto>;
    isConfigured(): boolean;
}