/**
 * Log levels
 */
export declare enum LogLevel {
    DEBUG = 0,
    INFO = 1,
    WARN = 2,
    ERROR = 3
}
/**
 * Logger configuration
 */
export interface LoggerConfig {
    /**
     * Minimum log level to output
     */
    level: LogLevel;
    /**
     * Whether to include timestamps in log output
     */
    timestamps: boolean;
    /**
     * Whether to output logs as JSON
     */
    json: boolean;
    /**
     * Path to log file (enables file logging when specified)
     */
    logFile?: string;
    /**
     * Maximum size of log file before rotation (default: 10MB)
     */
    maxFileSize?: number;
    /**
     * Maximum number of log files to keep (default: 5)
     */
    maxFiles?: number;
}
/**
 * Logger class for structured logging using Winston
 */
export declare class Logger {
    private logger;
    private context;
    private originalConsole;
    /**
     * Create a new logger
     *
     * @param config Logger configuration
     * @param context Additional context to include in all log entries
     */
    constructor(config?: Partial<LoggerConfig>, context?: Record<string, any>);
    /**
     * Create a child logger with additional context
     *
     * @param context Additional context to include in all log entries
     * @returns New logger instance with combined context
     */
    child(context: Record<string, any>): Logger;
    /**
     * Log a message at DEBUG level
     *
     * @param message Log message
     * @param data Additional data to include in the log entry
     */
    debug(message: string, data?: Record<string, any>): void;
    /**
     * Log a message at INFO level
     *
     * @param message Log message
     * @param data Additional data to include in the log entry
     */
    info(message: string, data?: Record<string, any>): void;
    /**
     * Log a message at WARN level
     *
     * @param message Log message
     * @param data Additional data to include in the log entry
     */
    warn(message: string, data?: Record<string, any>): void;
    /**
     * Log a message at ERROR level
     *
     * @param message Log message
     * @param data Additional data to include in the log entry
     */
    error(message: string, data?: Record<string, any>): void;
    /**
     * Log a message at the specified level
     *
     * @param level Log level
     * @param message Log message
     * @param data Additional data to include in the log entry
     */
    private log;
    /**
     * Configure global console methods to use this logger
     */
    installAsGlobal(): void;
    /**
     * Reconfigure an existing logger with new settings
     *
     * @param config Logger configuration
     */
    reconfigure(config?: Partial<LoggerConfig>): void;
}
export declare const logger: Logger;
/**
 * Configure logger from command line options
 *
 * @param options Command line options
 * @returns Configured logger instance
 */
export declare function configureLogger(options?: {
    debug?: boolean;
    json?: boolean;
    logFile?: string;
}): Logger;