/**
 * Code Index Service
 * Main service functions for managing the function index using LokiJS + FlexSearch
 */
import { FunctionMetadata, EnhancedFunctionMetadata, SearchOptions, RegisterResult, SearchResult, IndexStats } from './types.js';
import { CodeIndexDB } from './codeIndexDB.js';
export declare class CodeIndexError extends Error {
    code: string;
    constructor(message: string, code: string);
}
export declare class ValidationError extends CodeIndexError {
    constructor(message: string);
}
export declare class DatabaseError extends CodeIndexError {
    constructor(message: string);
}
export declare class SearchError extends CodeIndexError {
    constructor(message: string);
}
/**
 * Initialize database with schema.
 * Default (no path): same on-disk singleton as CodeIndexDB.getInstance() / MCP.
 * Explicit file path: separate DB instance (tests or advanced use).
 */
export declare function initializeCodeIndex(dbPath?: string): Promise<CodeIndexDB>;
/**
 * Primary entry: persisted singleton (or explicit path via initializeCodeIndex elsewhere).
 * Aligns search/sync/register with MCP's CodeIndexDB.getInstance() — previously defaulted to :memory:.
 */
export declare function getDatabase(): Promise<CodeIndexDB>;
/**
 * Validate function metadata
 */
export declare function validateFunctionMetadata(func: any): string | null;
/**
 * Register functions in the index
 */
export declare function registerFunctions(functions: FunctionMetadata[], options?: {
    overwrite?: boolean;
}): Promise<RegisterResult>;
/**
 * Search functions with full-text search
 */
export declare function searchFunctions(searchOptions: SearchOptions): Promise<SearchResult>;
/**
 * Synchronize file index - ensures index matches current file state
 */
export declare function syncFileIndex(filePath: string, currentFunctions: FunctionMetadata[]): Promise<{
    added: number;
    updated: number;
    removed: number;
}>;
/**
 * Find a specific function definition
 */
export declare function findDefinition(name: string, filePath?: string): Promise<FunctionMetadata | null>;
/**
 * Get index statistics
 */
export declare function getIndexStats(): Promise<IndexStats>;
/**
 * Clear analysis-derived index data (functions, search, audits, code maps, schemas).
 * Does not remove project tasks, analyzer configs, or whitelist entries.
 */
export declare function clearIndex(): Promise<void>;
/**
 * Close the database connection
 */
export declare function closeDatabase(): Promise<void>;
/**
 * Update dependency graph for all functions or specific file
 */
export declare function updateDependencyGraph(filePath?: string): Promise<void>;
/**
 * Get transitive dependencies for a function
 */
export declare function getTransitiveDependencies(functionName: string, maxDepth?: number): Promise<Array<{
    name: string;
    depth: number;
}>>;
/**
 * Get transitive callers for a function
 */
export declare function getTransitiveCallers(functionName: string, maxDepth?: number): Promise<Array<{
    name: string;
    depth: number;
}>>;
/**
 * Detect circular dependencies in the codebase
 */
export declare function detectCircularDependencies(): Promise<Array<string[]>>;
/**
 * Calculate dependency depths for all functions
 */
export declare function calculateDependencyDepths(): Promise<void>;
/**
 * Get all functions from the index
 */
export declare function getAllFunctions(): Promise<EnhancedFunctionMetadata[]>;
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