import { BaseContext, LogLevel } from './common';
/**
 * Represents a single log entry.
 * Contains metadata, contextual fields, and optional error info.
 */
export interface LogEntry extends BaseContext {
    /** Log severity level */
    level: LogLevel;
    /** Log message */
    message: string;
    /** Name of the service emitting the log */
    service: string;
    /** Runtime environment */
    environment: string;
    /** Application version */
    version: string;
    /** Additional structured log context */
    context?: Record<string, unknown>;
    /** Error details for error logs */
    error?: {
        name: string;
        message: string;
        stack?: string;
        code?: string;
        statusCode?: number;
    };
    /** Duration of event in ms (useful for performance logs) */
    duration?: number;
}
/**
 * Logger configuration for initializing the logging system.
 */
export interface LoggerConfig {
    /** Minimum log level */
    level: LogLevel;
    /** Service/app name */
    service: string;
    /** Application environment */
    environment: string;
    /** Optional version string */
    version?: string;
    /** Sensitive fields to redact */
    redactFields?: string[];
    /** Enable pretty output */
    prettyPrint?: boolean;
    /** Timestamp formatting */
    timestampFormat?: string;
}