/**
 * Compute diff between two strings
 */
export declare function computeDiff(oldContent: string, newContent: string, filePath: string, options?: DiffOptions): DiffResult;
/**
 * Format diff result as unified diff string
 */
export declare function formatUnifiedDiff(result: DiffResult): string;
/**
 * Format diff with colors for terminal output
 */
export declare function formatColoredDiff(result: DiffResult): string;
/**
 * Format diff as simple summary
 */
export declare function formatDiffSummary(result: DiffResult): string;
/**
 * Compare a file against new content
 */
export declare function diffFile(filePath: string, newContent: string, options?: DiffOptions): Promise<DiffResult>;
/**
 * Compare multiple files
 */
export declare function diffFiles(files: Map<string, string>, options?: DiffOptions): Promise<Map<string, DiffResult>>;
/**
 * Generate a summary of all diffs
 */
export declare function summarizeDiffs(results: Map<string, DiffResult>): {
  totalFiles: number
  changedFiles: number
  unchangedFiles: number
  totalAdditions: number
  totalDeletions: number
  newFiles: number
};
/**
 * Print colored diff to console
 */
export declare function printDiff(result: DiffResult): void;
/**
 * Print all diffs to console
 */
export declare function printDiffs(results: Map<string, DiffResult>, showUnchanged?: boolean): void;
/**
 * A single diff hunk (change)
 */
export declare interface DiffHunk {
  operation: DiffOperation
  lines: string[]
  oldStart: number
  oldCount: number
  newStart: number
  newCount: number
}
/**
 * Complete diff result
 */
export declare interface DiffResult {
  filePath: string
  identical: boolean
  hunks: DiffHunk[]
  stats: {
    additions: number
    deletions: number
    unchanged: number
  }
  oldContent?: string
  newContent: string
}
/**
 * Options for diff generation
 */
export declare interface DiffOptions {
  context?: number
  ignoreWhitespace?: boolean
  ignoreBlankLines?: boolean
  treatMissingAsEmpty?: boolean
}
/**
 * Diff operation type
 */
export type DiffOperation = 'add' | 'remove' | 'equal';