import { OnModuleDestroy } from '@nestjs/common';
import { Repository } from 'typeorm';
import { AxiosError, AxiosRequestConfig, AxiosResponse } from 'axios';
import { HttpLogEntity } from '../entities/http-log.entity';
/**
 * 异步日志配置
 */
interface AsyncLogConfig {
    /** 批量大小 */
    batchSize: number;
    /** 刷新间隔（毫秒） */
    flushIntervalMs: number;
    /** 最大重试次数 */
    maxRetries: number;
    /** 是否启用异步日志 */
    enabled: boolean;
}
/**
 * HTTP日志服务
 * 基于Spring Boot的请求日志记录机制，集成现有的ContextProvider
 * 支持异步批量日志写入以提升性能
 */
export declare class HttpLoggingService implements OnModuleDestroy {
    private readonly logger;
    private logRepository;
    /** 日志队列 */
    private logQueue;
    /** 定时器 */
    private flushTimer?;
    /** 默认异步日志配置 */
    private readonly asyncConfig;
    /** 处理中标志 */
    private isProcessing;
    constructor();
    onModuleDestroy(): void;
    initRepository(dataSource: string, tableName: string): Repository<HttpLogEntity> | null;
    /**
     * 记录请求开始
     */
    logRequestStart(config: AxiosRequestConfig, loggingOptions: any, requestId?: string): string;
    /**
     * 记录请求成功响应
     */
    logRequestSuccess(response: AxiosResponse, startTime: number, requestId: string, loggingOptions: any, databaseLogging?: boolean, retryRecords?: any[], circuitBreakerState?: string, decoratorContext?: any, clientName?: string, callingContext?: {
        serviceClass?: string;
        methodName?: string;
        operationName?: string;
    }): Promise<void>;
    /**
     * 记录请求错误
     */
    logRequestError(error: AxiosError, startTime: number, requestId: string, attemptCount: number, loggingOptions: any, databaseLogging?: boolean, retryRecords?: any[], circuitBreakerState?: string, decoratorContext?: any, clientName?: string, callingContext?: {
        serviceClass?: string;
        methodName?: string;
        operationName?: string;
    }): void;
    /**
     * 查询请求日志
     */
    findLogs(options: {
        requestId?: string;
        userId?: string;
        method?: string;
        url?: string;
        statusCode?: number;
        success?: boolean;
        startDate?: Date;
        endDate?: Date;
        limit?: number;
        offset?: number;
    }): Promise<HttpLogEntity[]>;
    /**
     * 获取请求统计信息
     */
    getStatistics(options: {
        startDate?: Date;
        endDate?: Date;
        userId?: string;
    }): Promise<any>;
    /**
     * 获取日志队列统计信息
     */
    getQueueStats(): {
        queueSize: number;
        isProcessing: boolean;
        config: AsyncLogConfig;
    };
    /**
     * 手动刷新日志队列
     */
    manualFlush(): Promise<void>;
    /**
     * 设置异步日志配置
     */
    setAsyncConfig(config: Partial<AsyncLogConfig>): void;
    /**
     * 提取调用信息
     */
    private extractCallInfo;
    /**
     * 保存到数据库
     * 如果启用异步日志，将日志项添加到队列中
     * 否则同步保存到数据库
     */
    private saveToDatabase;
    /**
     * 启动定期刷新任务
     */
    private startFlushTask;
    /**
     * 刷新日志队列到数据库
     */
    private flush;
    /**
     * 处理单个日志项
     */
    private processLogItem;
    /**
     * 同步保存日志到数据库（用于异步模式内部）
     */
    private saveLogToDatabase;
    /**
     * 获取完整URL
     * @param config Axios请求配置
     * @returns 完整的URL字符串
     */
    private getFullUrl;
}
export {};