/**
 * Request Tracker — 实时请求跟踪器
 *
 * 记录最近 100 次代理请求信息，包括时间、模型、耗时、状态码、系统提示词、携带的工具等，
 * 并通过 WebSocket 和 REST API 提供给前端查看。
 */
import { WebSocket } from 'ws';
export interface RequestLogEntry {
    id: string;
    timestamp: string;
    startTime: number;
    method: string;
    endpoint: string;
    model: string;
    actualModel?: string;
    stream: boolean;
    status: 'pending' | 'success' | 'error';
    statusCode?: number;
    durationMs: number;
    systemPrompt: string;
    toolNames: string[];
    tools: any[];
    messages: any[];
    error?: string;
    username?: string;
    clientIp?: string;
}
declare class RequestTracker {
    private requests;
    private clients;
    /**
     * 记录请求开始
     */
    recordStart(params: {
        endpoint: string;
        method?: string;
        model: string;
        stream: boolean;
        systemPrompt?: string;
        toolNames?: string[];
        tools?: any[];
        messages?: any[];
        username?: string;
        clientIp?: string;
    }): RequestLogEntry;
    /**
     * 记录请求结束
     */
    recordEnd(id: string, updates: {
        statusCode?: number;
        status?: 'success' | 'error';
        actualModel?: string;
        error?: string;
    }): void;
    /**
     * 获取最近的请求记录（最新在后）
     */
    getRecentRequests(): RequestLogEntry[];
    /**
     * 清空记录
     */
    clear(): void;
    /**
     * WebSocket 客户端订阅
     */
    subscribe(ws: WebSocket): void;
    /**
     * WebSocket 客户端退订
     */
    unsubscribe(ws: WebSocket): void;
    /**
     * 广播消息给所有连接的客户端
     */
    private broadcast;
}
export declare const requestTracker: RequestTracker;
export {};
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