/**
 * CodeDiffRenderer - Renders code diffs with intuitive +/- highlighting
 *
 * This utility provides clear visualization of code changes with syntax-aware
 * formatting and copy-paste friendly output.
 *
 * Design principles:
 * - Clear +/- indicators with recognizable colors
 * - Green background for additions, red background for deletions
 * - Line numbers for context
 * - Syntax highlighting for code
 * - Clean copy-paste output
 *
 * @module CodeDiffRenderer
 */
export interface DiffLine {
    type: 'context' | 'added' | 'removed';
    lineNumber?: number;
    content: string;
}
export interface FileDiff {
    path: string;
    language?: string;
    lines: DiffLine[];
    additions: number;
    deletions: number;
}
export interface DiffSummary {
    filesChanged: number;
    additions: number;
    deletions: number;
}
/**
 * CodeDiffRenderer - Renders code diffs with clear visual distinction
 *
 * Handles single file diffs and multi-file diff summaries with
 * copy-paste friendly formatting.
 */
export declare class CodeDiffRenderer {
    private theme;
    private terminalWidth;
    constructor();
    /**
     * Renders a single file diff
     *
     * Format:
     * Modified: api/users.ts (+3 -1)
     *   12 | export const getUsers = async (req: Request, res: Response) => {
     *   13 |   try {
     * - 14 |     const users = await db.users.findAll();
     * + 14 |     const users = await db.users.findAll({ where: { active: true } });
     *   15 |     res.json(users);
     *   16 |   } catch (error) {
     *
     * @param diff - File diff details
     */
    renderFileDiff(diff: FileDiff): string;
    /**
     * Renders a single diff line with appropriate styling
     *
     * @param line - The diff line to render
     */
    private renderDiffLine;
    /**
     * Renders a diff summary for multiple files
     *
     * Format:
     * Changes: 3 files (+42 -18)
     *   Modified: api/users.ts (+15 -5)
     *   Created:  api/auth.ts (+25 -0)
     *   Modified: api/index.ts (+2 -13)
     *
     * @param files - Array of file diffs
     */
    renderDiffSummary(files: FileDiff[]): string;
    /**
     * Renders inline code with syntax highlighting
     *
     * Format:
     * const result = await fetchData();
     *
     * @param code - Code snippet
     * @param language - Programming language
     */
    renderInlineCode(code: string, language?: string): string;
    /**
     * Renders a code block with header
     *
     * Format:
     * File: api/users.ts (TypeScript)
     * ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
     *   1 | import { Request, Response } from 'express';
     *   2 | import { db } from '../database';
     *   3 |
     *   4 | export const getUsers = async (req: Request, res: Response) => {
     * ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
     *
     * @param code - Code content
     * @param filename - File name/path
     * @param language - Programming language
     */
    renderCodeBlock(code: string, filename?: string, language?: string): string;
    /**
     * Format change counts (+X -Y)
     */
    private formatChangeCounts;
    /**
     * Basic JavaScript/TypeScript syntax highlighting
     */
    private highlightJavaScript;
    /**
     * Basic Python syntax highlighting
     */
    private highlightPython;
    /**
     * Refreshes theme (call after theme change)
     */
    refreshTheme(): void;
}
/**
 * Default singleton instance
 */
export declare const codeDiffRenderer: CodeDiffRenderer;
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