import { SurrealAdapter } from './surreal-adapter';
import type { CodebaseStats, VectorRecord } from './surreal-adapter';
export type { SurrealConfig, VectorRecord, CodebaseStats } from './surreal-adapter';
/**
 * Extended index statistics for a codebase, including language and package
 * breakdowns. Built on top of `CodebaseStats` via additional GROUP BY queries.
 */
export interface CodebaseIndexStats {
    codebaseId: string;
    totalChunks: number;
    totalFiles: number;
    languages: Record<string, number>;
    packages: Record<string, number>;
    lastIndexedAt: string | null;
}
/**
 * Code-specific adapter extending SurrealAdapter with methods for codebase
 * indexing. Operates on rag_documents rows with collection='code'.
 *
 * Separated from SurrealAdapter (which handles document/RAG operations) to
 * keep each class focused on a single concern.
 */
export declare class CodeAdapter extends SurrealAdapter {
    /**
     * Insert code chunks into rag_documents with collection='code'.
     *
     * Unlike insertChunks() which hardcodes collection='documents' and
     * sourceType='s3_document', this method is designed for codebase indexing
     * and accepts arbitrary metadata including contentHash.
     */
    insertCodeChunks(records: VectorRecord[], extraMetadata: Record<string, unknown>): Promise<number>;
    /**
     * Get the content_hash for a file in the code collection.
     * Returns null if the file is not indexed.
     */
    getContentHash(codebaseId: string, filePath: string): Promise<string | null>;
    /**
     * Delete all code chunks for a specific file path.
     */
    deleteByFilePath(codebaseId: string, filePath: string): Promise<number>;
    /**
     * Get all unique file paths indexed for a codebase.
     * Used for stale chunk cleanup — to find paths that no longer exist in git.
     */
    getIndexedFilePaths(codebaseId: string): Promise<string[]>;
    /**
     * Delete all code chunks for a codebase.
     */
    purgeCodebase(codebaseId: string): Promise<number>;
    /**
     * Get statistics about indexed code for a codebase.
     */
    getStats(codebaseId: string): Promise<CodebaseStats>;
    /**
     * Get extended index statistics for a codebase, including language and
     * package breakdowns. Used by the `codebase-stats` MCP tool to report
     * per-codebase index health.
     *
     * Issues three aggregate queries parameterized by `$codebaseId`:
     *   1. Totals + last updated (same as getStats)
     *   2. GROUP BY metadata.language for language counts
     *   3. GROUP BY metadata.packageName for package counts
     *
     * Entries with null/undefined keys are excluded from the records so callers
     * get clean, typed breakdowns.
     */
    getIndexStats(codebaseId: string): Promise<CodebaseIndexStats>;
}
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