/**
 * Document Registry
 * Tracks imported documents to enable incremental sync
 */
export interface DocumentEntry {
    relativePath: string;
    absolutePath: string;
    contentHash: string;
    size: number;
    memoryId: string | null;
    importedAt: string | null;
    lastChecked: string;
    type: string;
    priority: number;
    title: string;
    status: 'synced' | 'new' | 'modified' | 'deleted' | 'skipped';
}
export interface ProjectRegistry {
    lastFullScan: string;
    documents: Record<string, DocumentEntry>;
}
export interface DocumentRegistry {
    version: string;
    projects: Record<string, ProjectRegistry>;
}
/**
 * Load the document registry
 */
export declare function loadRegistry(): DocumentRegistry;
/**
 * Save the document registry
 */
export declare function saveRegistry(registry: DocumentRegistry): void;
/**
 * Get or create project registry
 */
export declare function getProjectRegistry(registry: DocumentRegistry, projectId: string): ProjectRegistry;
/**
 * Calculate SHA-256 hash of file content
 * Normalizes line endings for consistent hashing across platforms
 */
export declare function calculateFileHash(filePath: string): string;
/**
 * Get document entry from registry
 */
export declare function getDocumentEntry(registry: DocumentRegistry, projectId: string, relativePath: string): DocumentEntry | null;
/**
 * Update or create document entry
 */
export declare function setDocumentEntry(registry: DocumentRegistry, projectId: string, entry: DocumentEntry): void;
/**
 * Remove document entry
 */
export declare function removeDocumentEntry(registry: DocumentRegistry, projectId: string, relativePath: string): void;
/**
 * Get all document entries for a project
 */
export declare function getAllDocumentEntries(registry: DocumentRegistry, projectId: string): DocumentEntry[];
/**
 * Determine document status by comparing with registry
 */
export declare function determineDocumentStatus(registry: DocumentRegistry, projectId: string, doc: {
    path: string;
    type: string;
    title: string;
    priority: number;
}, projectDir: string): {
    status: 'new' | 'modified' | 'synced' | 'skipped';
    entry: DocumentEntry;
};
/**
 * Find deleted documents (in registry but not in scanned files)
 */
export declare function findDeletedDocuments(registry: DocumentRegistry, projectId: string, scannedPaths: Set<string>): DocumentEntry[];
/**
 * Mark document as imported with memory ID
 */
export declare function markDocumentImported(registry: DocumentRegistry, projectId: string, relativePath: string, memoryId: string): void;
/**
 * Mark document as skipped (not imported due to low priority)
 */
export declare function markDocumentSkipped(registry: DocumentRegistry, projectId: string, relativePath: string): void;
/**
 * Get sync statistics for a project
 */
export declare function getRegistryStats(registry: DocumentRegistry, projectId: string): {
    total: number;
    synced: number;
    skipped: number;
    new: number;
    modified: number;
};
/**
 * Clear project registry (for full re-scan)
 */
export declare function clearProjectRegistry(registry: DocumentRegistry, projectId: string): void;
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