import type { Logger } from '@dexto/core';
import type { BlobStore, BlobInput, BlobMetadata, BlobReference, BlobData, BlobStats } from './types.js';
import type { LocalBlobStoreConfig } from './schemas.js';
/**
 * Local filesystem blob store implementation.
 *
 * Stores blobs on the local filesystem with content-based deduplication
 * and metadata tracking. This is the default store for development
 * and single-machine deployments.
 */
export declare class LocalBlobStore implements BlobStore {
    private config;
    private storePath;
    private connected;
    private statsCache;
    private statsCachePromise;
    private lastStatsRefresh;
    private logger;
    private static readonly STATS_REFRESH_INTERVAL_MS;
    constructor(config: LocalBlobStoreConfig, logger: Logger);
    connect(): Promise<void>;
    disconnect(): Promise<void>;
    isConnected(): boolean;
    getStoreType(): string;
    store(input: BlobInput, metadata?: BlobMetadata): Promise<BlobReference>;
    retrieve(reference: string, format?: 'base64' | 'buffer' | 'path' | 'stream' | 'url'): Promise<BlobData>;
    exists(reference: string): Promise<boolean>;
    delete(reference: string): Promise<void>;
    cleanup(olderThan?: Date): Promise<number>;
    getStats(): Promise<BlobStats>;
    getStoragePath(): string | undefined;
    listBlobs(): Promise<BlobReference[]>;
    private ensureStatsCache;
    private refreshStatsCache;
    private updateStatsCacheAfterStore;
    private updateStatsCacheAfterDelete;
    /**
     * Convert various input types to Buffer
     */
    private inputToBuffer;
    /**
     * Parse blob reference to extract ID
     */
    private parseReference;
    /**
     * Detect MIME type from buffer content and/or filename
     */
    private detectMimeType;
    /**
     * Check if buffer contains text content
     */
    private isTextBuffer;
}
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