import { ReplicationStatus } from '../enumerations/replicationStatus';
import type { BlockId } from '../interfaces/branded/primitives/blockId';
import { IBlockMetadata } from '../interfaces/storage/blockMetadata';
import { IBlockMetadataStore } from '../interfaces/storage/blockMetadataStore';
/**
 * In-memory implementation of IBlockMetadataStore.
 *
 * This implementation stores block metadata in a Map for fast access.
 * It is suitable for testing, development, and browser environments.
 *
 * Note: Data is not persisted and will be lost when the store is destroyed.
 *
 * @see IBlockMetadataStore for the interface definition
 * @see DiskBlockMetadataStore for a persistent implementation
 */
export declare class MemoryBlockMetadataStore implements IBlockMetadataStore {
    private readonly metadata;
    /**
     * Create and store metadata for a new block.
     * @param metadata - The complete metadata record to store
     * @throws StoreError if metadata for this blockId already exists
     */
    create(metadata: IBlockMetadata): Promise<void>;
    /**
     * Get metadata for a block by its ID.
     * @param blockId - The unique identifier of the block
     * @returns The block's metadata, or null if not found
     */
    get(blockId: BlockId): Promise<IBlockMetadata | null>;
    /**
     * Update metadata for an existing block.
     * @param blockId - The unique identifier of the block
     * @param updates - Partial metadata updates to apply
     * @throws StoreError if no metadata exists for this blockId
     */
    update(blockId: BlockId, updates: Partial<IBlockMetadata>): Promise<void>;
    /**
     * Delete metadata for a block.
     * @param blockId - The unique identifier of the block
     * @throws StoreError if no metadata exists for this blockId
     */
    delete(blockId: BlockId): Promise<void>;
    /**
     * Find all blocks that have expired (expiresAt is in the past).
     * @returns Array of metadata for expired blocks
     */
    findExpired(): Promise<IBlockMetadata[]>;
    /**
     * Find all blocks with a specific replication status.
     * @param status - The replication status to filter by
     * @returns Array of metadata for blocks with the specified status
     */
    findByReplicationStatus(status: ReplicationStatus): Promise<IBlockMetadata[]>;
    /**
     * Record an access to a block, updating accessCount and lastAccessedAt.
     * @param blockId - The unique identifier of the block
     * @throws StoreError if no metadata exists for this blockId
     */
    recordAccess(blockId: BlockId): Promise<void>;
    /**
     * Clear all metadata from the store.
     * Useful for testing.
     */
    clear(): void;
    /**
     * Get the number of metadata records in the store.
     * @returns The number of metadata records
     */
    size(): number;
    /**
     * Get all metadata entries for iteration (e.g., admin dashboard stats).
     * Returns a read-only iterator over all stored metadata records.
     */
    values(): IterableIterator<IBlockMetadata>;
    /**
     * Check if metadata exists for a block.
     * @param blockId - The unique identifier of the block
     * @returns True if metadata exists
     */
    has(blockId: BlockId | string): boolean;
    /**
     * Create a deep copy of metadata to prevent external mutations.
     * @param meta - The metadata to clone
     * @returns A deep copy of the metadata
     */
    private cloneMetadata;
}
//# sourceMappingURL=memoryBlockMetadataStore.d.ts.map