/**
 * Template hash utilities for detecting user modifications
 *
 * Stores SHA256 hashes of template files at install time.
 * Used to determine if users have modified templates.
 */
import type { TemplateHashes } from "../types/migration.js";
/**
 * Compute SHA256 hash of content
 */
export declare function computeHash(content: string): string;
/**
 * Load stored template hashes
 */
export declare function loadHashes(cwd: string): TemplateHashes;
/**
 * Save template hashes
 */
export declare function saveHashes(cwd: string, hashes: TemplateHashes): void;
/**
 * Update hashes for specific files
 *
 * @param cwd - Working directory
 * @param files - Map of relative paths to file contents
 */
export declare function updateHashes(cwd: string, files: Map<string, string>): void;
/**
 * Update hash for a single file by reading its current content
 */
export declare function updateHashFromFile(cwd: string, relativePath: string): void;
/**
 * Remove hash entry for a file (e.g., after deletion)
 */
export declare function removeHash(cwd: string, relativePath: string): void;
/**
 * Rename hash entry (used after file rename)
 */
export declare function renameHash(cwd: string, oldPath: string, newPath: string): void;
/**
 * Check if a template file has been modified by the user
 *
 * @param cwd - Working directory
 * @param relativePath - Relative path to the file
 * @param hashes - Stored template hashes
 * @returns true if file has been modified from template, false otherwise
 */
export declare function isTemplateModified(cwd: string, relativePath: string, hashes: TemplateHashes): boolean;
/**
 * Check if a file matches its original template content
 * (Useful for determining if a file can be safely auto-migrated)
 *
 * @param cwd - Working directory
 * @param relativePath - Relative path to the file
 * @param originalContent - Original template content
 * @returns true if file matches original template
 */
export declare function matchesOriginalTemplate(cwd: string, relativePath: string, originalContent: string): boolean;
/**
 * Get modification status for multiple files
 *
 * @param cwd - Working directory
 * @param relativePaths - Array of relative paths to check
 * @param hashes - Stored template hashes
 * @returns Map of path to modification status
 */
export declare function getModificationStatus(cwd: string, relativePaths: string[], hashes: TemplateHashes): Map<string, boolean>;
/**
 * Initialize template hashes after init
 *
 * Scans all template directories and computes hashes for files.
 * This should be called at the end of `aim init` to enable
 * modification detection on subsequent updates.
 *
 * @param cwd - Working directory
 * @returns Number of files hashed
 */
export declare function initializeHashes(cwd: string): number;
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