/**
 * Real-Time Sync Handler
 * KILLER FEATURE: Google Docs-level real-time synchronization for code
 * Integrates CodeSyncEngine with WebSocket collaboration
 */
import { EventEmitter } from 'events';
import * as WebSocket from 'ws';
import { CodeSyncEngine, CodeDocument } from './code-sync-engine';
export interface SyncMessage {
    type: 'operation' | 'cursor_position' | 'selection_change' | 'file_open' | 'file_close' | 'sync_request';
    payload: any;
    userId: string;
    sessionId: string;
    timestamp: Date;
}
export interface CursorPosition {
    userId: string;
    fileId: string;
    line: number;
    column: number;
    timestamp: Date;
}
export interface TextSelection {
    userId: string;
    fileId: string;
    start: {
        line: number;
        column: number;
    };
    end: {
        line: number;
        column: number;
    };
    timestamp: Date;
}
export interface UserFileActivity {
    userId: string;
    sessionId: string;
    openFiles: string[];
    activeFile?: string;
    cursors: Map<string, CursorPosition>;
    selections: Map<string, TextSelection>;
}
export declare class RealtimeSyncHandler extends EventEmitter {
    private syncEngine;
    private connections;
    private userActivities;
    private documentSubscribers;
    private typingIndicators;
    constructor(syncEngine: CodeSyncEngine);
    addConnection(userId: string, ws: WebSocket): void;
    removeConnection(userId: string): void;
    private handleSyncMessage;
    private handleOperationMessage;
    private handleCursorPosition;
    private handleSelectionChange;
    private handleFileOpen;
    private handleFileClose;
    private handleSyncRequest;
    private setUserTyping;
    private startTypingIndicatorCleanup;
    private broadcastToDocument;
    private sendToUser;
    private setupSyncEngineHandlers;
    createDocument(sessionId: string, filePath: string, content: string, createdBy: string): CodeDocument;
    getDocumentAnalytics(documentId: string): {
        documentId: string;
        filePath: string;
        version: number;
        collaborators: number;
        totalOperations: number;
        totalConflicts: number;
        lastModified: Date;
        operationsByType: Record<string, number>;
        operationsByAuthor: Record<string, number>;
        conflictResolutionStrategies: Record<string, number>;
        averageConflictResolutionTime: number;
    } | null;
    getUserActivity(userId: string): UserFileActivity | null;
    getDocumentCollaborators(documentId: string): string[];
    getAllActivities(): UserFileActivity[];
    shutdown(): Promise<void>;
}
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