/**
 * Change Tracking & Diff (T016)
 *
 * Tracks all modifications to a document and provides diff capabilities
 */
import type { Change } from './transaction.js';
export interface DiffEntry {
    path: string;
    type: 'added' | 'modified' | 'deleted';
    oldValue?: any;
    newValue?: any;
}
export interface DiffResult {
    changes: DiffEntry[];
    hasChanges: boolean;
    summary: {
        added: number;
        modified: number;
        deleted: number;
        total: number;
    };
}
export declare class ChangeTracker {
    private changes;
    private enabled;
    /**
     * Record a change
     */
    record(change: Change): void;
    /**
     * Get all recorded changes
     */
    getChanges(): Change[];
    /**
     * Clear all changes
     */
    clear(): void;
    /**
     * Get number of changes
     */
    count(): number;
    /**
     * Check if there are any changes
     */
    hasChanges(): boolean;
    /**
     * Enable change tracking
     */
    enable(): void;
    /**
     * Disable change tracking
     */
    disable(): void;
    /**
     * Check if tracking is enabled
     */
    isEnabled(): boolean;
}
/**
 * Compare two documents and generate a diff
 */
export declare function diff(original: any, modified: any, path?: string): DiffResult;
/**
 * Apply a diff to a document
 */
export declare function applyDiff(document: any, diffResult: DiffResult): void;
/**
 * Format diff as a human-readable string
 */
export declare function formatDiff(diffResult: DiffResult): string;
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