import { Request, Response, NextFunction } from 'express';
export declare enum LogLevel {
    REQUEST = "REQUEST",
    ERROR = "ERROR",
    WARNING = "WARNING",
    AUTH = "AUTH",
    DATABASE = "DATABASE",
    STARTUP = "STARTUP",
    CONNECTION = "CONNECTION",
    OTHER = "OTHER"
}
export interface LogEntry {
    timestamp: string;
    level: LogLevel;
    message: string;
    metadata?: any;
    requestId?: string;
    userId?: string;
    ip?: string;
    userAgent?: string;
    method?: string;
    url?: string;
    statusCode?: number;
    responseTime?: number;
}
export declare class LoggingService {
    private static instance;
    private minioClient;
    private logBuffer;
    private currentLogFile;
    private logCount;
    private readonly maxLogsPerFile;
    private readonly logsDir;
    private readonly bucketName;
    private uploadInterval;
    private constructor();
    static getInstance(): LoggingService;
    private initializeLogsDirectory;
    private initializeMinioClient;
    private ensureBucketExists;
    private startPeriodicUpload;
    private getMonthlyDirectory;
    private getMonthlyMinioPrefix;
    private createNewLogFile;
    private formatLogEntry;
    private writeToLocalFile;
    private rotateLogFile;
    private uploadToMinio;
    private logToConsole;
    log(level: LogLevel, message: string, metadata?: any, req?: Request, res?: Response, responseTime?: number): void;
    private generateRequestId;
    shutdown(): Promise<void>;
    requestLoggingMiddleware(): (req: Request, res: Response, next: NextFunction) => void;
    errorLoggingMiddleware(): (error: Error, req: Request, res: Response, next: NextFunction) => void;
}
export default LoggingService;
//# sourceMappingURL=LoggingService.d.ts.map