/**
 * Semantic Search using SQLite FTS5
 *
 * Provides full-text search capabilities for code symbols and content.
 * Uses SQLite's built-in FTS5 for efficient text search without external dependencies.
 *
 * Ported from Argus to Foundation.
 */
export interface SearchResult {
    file: string;
    symbol: string;
    content: string;
    type: string;
    rank: number;
}
export declare class SemanticIndex {
    private db;
    private initialized;
    constructor(dbPath: string);
    private initialize;
    /**
     * Clear the index and rebuild from scratch
     */
    clear(): void;
    /**
     * Index a file's symbols and content
     */
    indexFile(file: string, symbols: Array<{
        name: string;
        content: string;
        type: string;
    }>): void;
    /**
     * Index content from a snapshot file
     */
    indexFromSnapshot(snapshotPath: string): Promise<{
        filesIndexed: number;
        symbolsIndexed: number;
    }>;
    /**
     * Search the index
     */
    search(query: string, limit?: number): SearchResult[];
    /**
     * Get index statistics
     */
    getStats(): {
        totalSymbols: number;
        lastIndexed: string | null;
        snapshotPath: string | null;
    };
    close(): void;
}
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