import { Result, URI } from "@adviser/cement";
import { FPEnvelopeMeta, SerializedMeta, V2SerializedMetaKey, Gateway, Loadable, FPEnvelope, SerdeGateway, SerdeGatewayCtx } from "@fireproof/core-types-blockstore";
import { NotFoundError } from "@fireproof/core-types-base";
type V1SerializedMetaKey = SerializedMeta & {
    readonly key?: string | string[];
    readonly keys?: string[];
};
export declare function V2SerializedMetaKeyExtractKey(ctx: SerdeGatewayCtx, v2: V2SerializedMetaKey): Promise<Result<SerializedMeta[]>>;
export declare function decodeAsToSerializedMeta(ctx: SerdeGatewayCtx, raw: Uint8Array): Promise<Result<V2SerializedMetaKey>>;
export declare function addKeyToDbMetaDecoder(ctx: SerdeGatewayCtx & {
    readonly lastDecodedMetas?: V2SerializedMetaKey[];
}): SerdeGatewayCtx & {
    lastDecodedMetas: V2SerializedMetaKey[];
};
export declare function encodeAsV1SerializedMetaKey(ctx: SerdeGatewayCtx, payload: SerializedMeta[]): Promise<Result<V1SerializedMetaKey[]>>;
export declare function encodeAsV2SerializedMetaKey(ctx: SerdeGatewayCtx, payload: SerializedMeta[]): Promise<Result<V2SerializedMetaKey>>;
export declare function addKeyToDbMetaEncoder(ctx: SerdeGatewayCtx, version: "v1" | "v2"): SerdeGatewayCtx;
export declare class AddKeyToDbMetaGateway implements SerdeGateway {
    private readonly sdGw;
    readonly version: "v1" | "v2";
    constructor(gw: Gateway, version: "v1" | "v2");
    buildUrl(ctx: SerdeGatewayCtx, baseUrl: URI, key: string): Promise<Result<URI>>;
    start(ctx: SerdeGatewayCtx, baseUrl: URI): Promise<Result<URI>>;
    close(ctx: SerdeGatewayCtx, baseUrl: URI): Promise<Result<void, Error>>;
    put<T>(ctx: SerdeGatewayCtx, url: URI, body: FPEnvelope<T>): Promise<Result<void, Error>>;
    get<S>(ctx: SerdeGatewayCtx, url: URI): Promise<Result<FPEnvelope<S>, Error | NotFoundError>>;
    readonly lastDecodedMetas: V2SerializedMetaKey[];
    delete(ctx: SerdeGatewayCtx, url: URI, loader?: Loadable): Promise<Result<void, Error>>;
    subscribe(ctx: SerdeGatewayCtx, url: URI, callback: (meta: FPEnvelopeMeta) => Promise<void>): Promise<Result<() => void, Error>>;
    getPlain(ctx: SerdeGatewayCtx, url: URI, key: string): Promise<Result<Uint8Array>>;
    destroy(ctx: SerdeGatewayCtx, baseUrl: URI): Promise<Result<void, Error>>;
}
export {};