import Pino from 'pino';
import { IGunChainReference } from 'gun/types/chain';
import { BucketMetadata, FileMetadata, SharedFileMetadata, ShareUserMetadata, UserMetadataStore } from './metadataStore';
export declare type GunChainReference<Data> = Omit<IGunChainReference<Data>, 'then'>;
declare type GunFileMetadata = {
    data: string;
};
declare type EncryptedMetadata = {
    data: string;
};
interface LookupDataState {
    [dbIdBucket: string]: EncryptedMetadata;
}
interface LookupFileMetadataState {
    [lookupId: string]: GunFileMetadata;
}
interface ListDataState {
    [collectionName: string]: EncryptedMetadata[];
}
export declare type GunDataState = LookupDataState | ListDataState | LookupFileMetadataState;
declare type GunInit = (() => GunChainReference<GunDataState>);
/**
 * A Users Storage Metadata store backed by gundsdb.
 *
 * This is the default MetadataStore used by {@link @spacehq/sdk#UserStorage}.
 *
 */
export declare class GundbMetadataStore implements UserMetadataStore {
    private readonly username;
    private readonly userpass;
    private gunInit;
    private readonly bucketsListCache;
    private readonly sharedFilesListCache;
    private readonly sharedByMeFilesListCache;
    private readonly recentlySharedWithListCache;
    private _user?;
    private _publicUser?;
    private logger?;
    /**
     * Creates a new instance of this metadata store for users identity.
     *
     */
    private constructor();
    /**
     * Creates a new instance of this metadata store for users identity.
     *
     * @param username - Username of user
     * @param userpass - Password of user
     * @param gunOrServer - initialized gun instance or peer server
     * @param logger - Optional pino logger instance for debug mode
     */
    static fromIdentity(username: string, userpass: string, gunOrServer?: GunInit | string | string[], logger?: Pino.Logger | boolean): Promise<GundbMetadataStore>;
    /**
     * {@inheritDoc @spacehq/sdk#UserMetadataStore.createBucket}
     */
    createBucket(bucketSlug: string, dbId: string, bucketKey: string): Promise<BucketMetadata>;
    /**
     * {@inheritDoc @spacehq/sdk#UserMetadataStore.setNotificationsLastSeenAt}
     */
    setNotificationsLastSeenAt(timestamp: number): Promise<void>;
    /**
     * {@inheritDoc @spacehq/sdk#UserMetadataStore.getNotificationsLastSeenAt}
     */
    getNotificationsLastSeenAt(): Promise<number>;
    /**
     * {@inheritDoc @spacehq/sdk#UserMetadataStore.findBucket}
     */
    findBucket(bucketSlug: string): Promise<BucketMetadata | undefined>;
    /**
     * {@inheritDoc @spacehq/sdk#UserMetadataStore.listBuckets}
     */
    listBuckets(): Promise<BucketMetadata[]>;
    /**
     * {@inheritDoc @spacehq/sdk#UserMetadataStore.upsertFileMetadata}
     */
    upsertFileMetadata(metadata: FileMetadata): Promise<FileMetadata>;
    /**
     * {@inheritDoc @spacehq/sdk#UserMetadataStore.findFileMetadata}
     */
    findFileMetadata(bucketSlug: string, dbId: string, path: string): Promise<FileMetadata | undefined>;
    /**
     * {@inheritDoc @spacehq/sdk#UserMetadataStore.findFileMetadataByUuid}
     */
    findFileMetadataByUuid(uuid: string): Promise<FileMetadata | undefined>;
    /**
     * {@inheritDoc @spacehq/sdk#UserMetadataStore.setFilePublic}
     */
    setFilePublic(metadata: FileMetadata): Promise<void>;
    /**
     * {@inheritDoc @spacehq/sdk#UserMetadataStore.upsertSharedWithMeFile}
     */
    upsertSharedWithMeFile(fileData: SharedFileMetadata): Promise<SharedFileMetadata>;
    /**
     * {@inheritDoc @spacehq/sdk#UserMetadataStore.findSharedFilesByInvitation}
     */
    findSharedFilesByInvitation(invitationId: string): Promise<SharedFileMetadata | undefined>;
    /**
     * {@inheritDoc @spacehq/sdk#UserMetadataStore.listSharedWithMeFiles}
     */
    listSharedWithMeFiles(): Promise<SharedFileMetadata[]>;
    /**
     * {@inheritDoc @spacehq/sdk#UserMetadataStore.upsertSharedByMeFile}
     */
    upsertSharedByMeFile(fileData: SharedFileMetadata): Promise<SharedFileMetadata>;
    /**
     * {@inheritDoc @spacehq/sdk#UserMetadataStore.listSharedByMeFiles}
     */
    listSharedByMeFiles(): Promise<SharedFileMetadata[]>;
    /**
     * {@inheritDoc @spacehq/sdk#UserMetadataStore.addUserRecentlySharedWith}
     */
    addUserRecentlySharedWith(user: ShareUserMetadata): Promise<ShareUserMetadata>;
    /**
     * {@inheritDoc @spacehq/sdk#UserMetadataStore.listUsersRecentlySharedWith}
     */
    listUsersRecentlySharedWith(): Promise<ShareUserMetadata[]>;
    private lookupUserData;
    private lookupPublicFileMetadata;
    private startCachingBucketsList;
    private startCachingList;
    private static getNotificationsLastSeenAtLookupKey;
    private getBucketsLookupKey;
    private static getFilesLookupKey;
    private static getFilesInvitationLookupKey;
    private static getSharedByMeLookupKey;
    private static getRecentSharedLookupKey;
    private static getFilesUuidLookupKey;
    private get user();
    private get publicUser();
    private get lookupUser();
    private get listUser();
    private get publicLookupChain();
    private authenticateUser;
    private encrypt;
    private decrypt;
    private encryptBucketSchema;
    private decryptBucketSchema;
}
export {};