/**
 * 错误追踪系统
 * 捕获、记录和分析应用程序错误
 */
interface ErrorTrackerConfig {
    logDirectory: string;
    maxErrorsInMemory: number;
    enableFileLogging: boolean;
    enableConsoleLogging: boolean;
    alertThreshold: number;
}
interface ErrorData {
    message: string;
    stack?: string;
    type: string;
    statusCode: number;
    route?: string;
    method?: string;
    path?: string;
    query?: Record<string, unknown>;
    ip?: string;
    userAgent?: string;
    timestamp: string;
    severity: string;
}
export declare class ErrorTracker {
    criticalErrors: ErrorData[];
    recentErrors: ErrorData[];
    config: ErrorTrackerConfig;
    errorCounts: Map<string, number>;
    errors: ErrorData[];
    reportInterval: ReturnType<typeof setInterval>;
    constructor(options?: Partial<ErrorTrackerConfig & {
        logDirectory: string;
        maxErrorsInMemory: number;
        enableFileLogging: boolean;
        enableConsoleLogging: boolean;
        alertThreshold: number;
    }>);
    /** 确保日志目录存在 */
    _ensureLogDirectory(): void;
    /** Express 错误处理中间件 */
    errorHandler(): (err: {
        message: string;
        stack?: string;
        name?: string;
        statusCode?: number;
        code?: string;
    }, req: {
        method: string;
        path: string;
        query: Record<string, unknown>;
        ip: string;
        get: (header: string) => string | undefined;
    }, res: {
        status: (code: number) => {
            json: (body: unknown) => void;
        };
        statusCode: number;
    }, _next: unknown) => void;
    /** 记录错误 */
    trackError(errorData: ErrorData): void;
    /** 写入文件 */
    _writeToFile(errorData: ErrorData): void;
    /** 检查告警阈值 */
    _checkAlertThreshold(): void;
    /** 生成错误报告 */
    _generateReport(): void;
    /** 获取最常见错误类型 */
    _getTopErrorTypes(limit?: number): {
        type: string;
        count: number;
    }[];
    /** 获取错误统计 */
    getStats(): {
        summary: {
            totalErrors: number;
            criticalErrors: number;
            lastHourErrors: number;
            last24HoursErrors: number;
            uniqueErrorTypes: number;
        };
        topErrorTypes: {
            type: string;
            count: number;
        }[];
        recentErrors: {
            type: string;
            message: string;
            route: string | undefined;
            statusCode: number;
            severity: string;
            timestamp: string;
        }[];
        criticalErrors: {
            type: string;
            message: string;
            route: string | undefined;
            timestamp: string;
        }[];
        errorsByRoute: {
            route: any;
            count: any;
        }[];
    };
    /** 按路由统计错误 */
    _getErrorsByRoute(): {
        route: any;
        count: any;
    }[];
    /** 清除错误记录 */
    clearErrors(): void;
    /** 搜索错误 */
    searchErrors(options?: {
        type?: string;
        route?: string;
        severity?: string;
        startDate?: string;
        endDate?: string;
        limit?: number;
    }): ErrorData[];
    /** 停止错误追踪 */
    shutdown(): void;
}
/** 初始化错误追踪 */
export declare function initErrorTracker(options?: Partial<ErrorTrackerConfig>): ErrorTracker;
/** 获取错误追踪实例 */
export declare function getErrorTracker(): ErrorTracker;
export default ErrorTracker;