/**
 * Semantic Source Indexer
 *
 * Responsible for:
 * 1. Discovering files in a project (respecting .gitignore)
 * 2. Chunking code into semantic units (functions, classes)
 * 3. Hashing and staleness detection
 * 4. Vectorizing chunks via Jina
 */
export interface SourceChunk {
    filePath: string;
    content: string;
    type: 'function' | 'class' | 'block';
    startLine: number;
    endLine: number;
    hash: string;
}
export interface SourceFileMetadata {
    hash: string;
    chunks: SourceChunk[];
    lastIndexed: string;
}
export interface SourceManifest {
    version: number;
    project: string;
    gitHead?: string;
    files: Record<string, SourceFileMetadata>;
}
/**
 * Walk project directory using git ls-files for efficient filtering
 */
export declare function getProjectFiles(dir: string, extensions?: string[]): string[];
/**
 * Calculate file hash used for staleness detection
 */
export declare function calculateFileHash(content: string): string;
/**
 * Split code into semantic chunks (Initial version: Regex-based)
 */
export declare function chunkCode(filePath: string, content: string): SourceChunk[];
/**
 * Get current Git HEAD hash
 */
export declare function getGitHead(dir: string): string | undefined;
/**
 * Orchestrate the source indexing process
 */
export declare function indexProjectSource(projectName: string, dir: string, apiKey: string): Promise<{
    filesIndexed: number;
    chunksCreated: number;
    tokensUsed: number;
}>;
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