import type { FileBody, FileListObject, FileMeta, FileUploadPayload } from "../..";
import { StorageAdapter } from "../..";
import { s } from "bknd/utils";
export declare const opfsAdapterConfig: s.ObjectSchema<{
    readonly root: {
        readonly default: "";
    } & s.Schema<s.ISchemaOptions, string | undefined, string | undefined>;
}, {
    readonly title: "OPFS";
    readonly description: "Origin Private File System storage";
    readonly additionalProperties: false;
}> & {
    readonly title: "OPFS";
    readonly description: "Origin Private File System storage";
    readonly additionalProperties: false;
};
export type OpfsAdapterConfig = s.Static<typeof opfsAdapterConfig>;
/**
 * Storage adapter for OPFS (Origin Private File System)
 * Provides browser-based file storage using the File System Access API
 */
export declare class OpfsStorageAdapter extends StorageAdapter {
    private config;
    private rootPromise;
    constructor(config?: Partial<OpfsAdapterConfig>);
    private initializeRoot;
    getSchema(): s.ObjectSchema<{
        readonly root: {
            readonly default: "";
        } & s.Schema<s.ISchemaOptions, string | undefined, string | undefined>;
    }, {
        readonly title: "OPFS";
        readonly description: "Origin Private File System storage";
        readonly additionalProperties: false;
    }> & {
        readonly title: "OPFS";
        readonly description: "Origin Private File System storage";
        readonly additionalProperties: false;
    };
    getName(): string;
    listObjects(prefix?: string): Promise<FileListObject[]>;
    private computeEtagFromArrayBuffer;
    putObject(key: string, body: FileBody): Promise<string | FileUploadPayload>;
    deleteObject(key: string): Promise<void>;
    objectExists(key: string): Promise<boolean>;
    private parseRangeHeader;
    getObject(key: string, headers: Headers): Promise<Response>;
    getObjectUrl(_key: string): string;
    getObjectMeta(key: string): Promise<FileMeta>;
    toJSON(_secrets?: boolean): {
        type: string;
        config: {
            root?: string | undefined;
        };
    };
}