import { StorageMediaData, StorageProviderBase, StorageStoreResults } from "../StorageProviderBase";
/**
 * Local storage provider backed by IndexedDB.
 *
 * The provider lazily opens a project-scoped database on first use so projects can switch storage contexts without
 * recreating the database connection on every `init` call. Media payloads are stored as `Blob` records keyed by their
 * content hash.
 */
export declare class StorageIndexedDB extends StorageProviderBase {
    private db;
    private dbPromise;
    private active;
    private projectId;
    private isInit;
    constructor();
    private checkIfReady;
    init(projectId: string): Promise<void>;
    lazyInit(projectId: string): Promise<void>;
    destroy(): Promise<void>;
    storeMedia(storageData: StorageMediaData): Promise<StorageStoreResults>;
    hasMedia(mediaHash: string): Promise<boolean>;
    getMedia(mediaHash: string): Promise<StorageMediaData | null>;
    removeMedia(mediaHash: string): Promise<boolean>;
    getMediaHashList(): Promise<string[]>;
    sync(master: StorageProviderBase): Promise<boolean>;
    isActive(): boolean;
}