/**
 * File Modification Detector
 *
 * Detects when user has modified generated context files.
 * Uses content hashing for efficient change detection.
 */
import type { DatabaseClient } from '../../db/client.js';
/**
 * File modification status
 */
export interface FileModificationStatus {
    /** Tool name */
    tool: string;
    /** Full file path */
    filePath: string;
    /** Whether file exists on disk */
    exists: boolean;
    /** Whether file was generated by k0ntext */
    wasGenerated: boolean;
    /** Current content hash */
    currentHash: string | null;
    /** Hash stored in database when generated */
    storedHash: string | null;
    /** Whether file has been modified since generation */
    isModified: boolean;
    /** Last time file was generated */
    generatedAt?: string;
    /** Last time file was verified */
    lastVerifiedAt?: string;
}
/**
 * File modification detector options
 */
export interface ModificationDetectorOptions {
    /** Include files that don't exist in results */
    includeNonExistent?: boolean;
}
/**
 * File modification detector
 *
 * Checks if user has modified generated context files.
 */
export declare class FileModificationDetector {
    private db;
    private projectRoot;
    constructor(db: DatabaseClient, projectRoot?: string);
    /**
     * Convert absolute path to relative path for database lookup
     */
    private toRelativePath;
    /**
     * Check a single file for modifications
     *
     * @param tool - Tool name
     * @param filePath - Full path to file
     * @returns File modification status
     */
    checkFile(tool: string, filePath: string): Promise<FileModificationStatus>;
    /**
     * Check all generated files for modifications
     *
     * @param options - Detector options
     * @returns Array of file modification statuses
     */
    checkAll(options?: ModificationDetectorOptions): Promise<FileModificationStatus[]>;
    /**
     * Get only modified files
     *
     * @returns Array of modified file statuses
     */
    getModifiedFiles(): Promise<FileModificationStatus[]>;
    /**
     * Mark a file as verified (update last_verified_at)
     *
     * @param tool - Tool name
     * @param filePath - Full path to file
     */
    markAsVerified(tool: string, filePath: string): void;
    /**
     * Mark a file as user-modified
     *
     * @param tool - Tool name
     * @param filePath - Full path to file
     */
    markAsModified(tool: string, filePath: string): void;
}
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