import { type Database as DatabaseType } from 'better-sqlite3';
/**
 * Document metadata interface.
 */
export interface DocumentMetadata {
    path: string;
    title: string;
    content: string;
    summary?: string;
    status?: 'GAP' | 'WIP' | 'PASS' | 'BLOCKED' | 'MISSING';
    dependencies?: string[];
    modifiedAt: number;
    hash: string;
}
/**
 * Indexing result interface for batch operations.
 */
export interface IndexingResult {
    indexed: number;
    updated: number;
    skipped: number;
    errors: {
        path: string;
        error: string;
    }[];
}
/**
 * Initialize a SQLite database at the given path.
 * Creates the database file if it doesn't exist.
 *
 * @param dbPath - Path to the SQLite database file
 * @returns Database instance
 */
export declare function initializeDatabase(dbPath: string): DatabaseType;
/**
 * Create the database schema including documents table and FTS5 virtual table.
 * Must be called after initializeDatabase.
 *
 * @param db - Database instance
 */
export declare function createSchema(db: DatabaseType): void;
/**
 * Clear all indexed documents.
 *
 * @param db - Database instance
 */
export declare function clearIndex(db: DatabaseType): void;
/**
 * Index a single document into the database.
 *
 * @param db - Database instance
 * @param filePath - Path to the markdown file
 * @returns Document metadata
 */
export declare function indexDocument(db: DatabaseType, filePath: string, maxFileSize?: number): Promise<DocumentMetadata>;
/**
 * Update document index in database and FTS5.
 *
 * @param db - Database instance
 * @param metadata - Document metadata
 */
export declare function updateDocumentIndex(db: DatabaseType, metadata: DocumentMetadata): Promise<void>;
/**
 * Remove document from database and FTS5 index.
 *
 * @param db - Database instance
 * @param filePath - Path to the document
 */
export declare function removeDocument(db: DatabaseType, filePath: string): Promise<void>;
/**
 * Remove indexed documents for a path and all nested descendants.
 *
 * @param db - Database instance
 * @param pathPrefix - Absolute path to file/directory root
 */
export declare function removeDocumentsByPathPrefix(db: DatabaseType, pathPrefix: string): Promise<void>;
/**
 * Index all documents in a directory.
 *
 * @param db - Database instance
 * @param plansPath - Path to the plans directory
 * @param ignorePatterns - Patterns to ignore (e.g., ['node_modules', '.git'])
 * @returns Indexing result
 */
export declare function indexAllDocuments(db: DatabaseType, plansPath: string, ignorePatterns?: string[]): Promise<IndexingResult>;
/**
 * Index all documents from multiple paths with configurable file extensions.
 *
 * @param db - Database instance
 * @param paths - Array of paths to index
 * @param extensions - File extensions to index (e.g., ['.md', '.jsx', '.tsx'])
 * @param ignorePatterns - Patterns to ignore (e.g., ['node_modules', '.git'])
 * @param maxDepth - Maximum directory recursion depth
 * @param maxFileSize - Maximum file size in bytes to index
 * @returns Combined indexing result
 */
export declare function indexAllPaths(db: DatabaseType, paths: string[], extensions?: string[], ignorePatterns?: string[], maxDepth?: number, maxFileSize?: number): Promise<IndexingResult>;
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