/**
 * Structured logging with Pino
 *
 * Provides a logger factory with configurable log levels, structured log format,
 * and log redaction for sensitive data.
 */
import type { LogLevel } from '../types/index.js';
/**
 * Structured log context
 */
export interface LogContext {
    codebaseName?: string;
    filePath?: string;
    chunkCount?: number;
    durationMs?: number;
    [key: string]: unknown;
}
/**
 * Error information for logging
 */
export interface LogError {
    message: string;
    stack?: string;
    code?: string;
}
/**
 * Logger interface with component-specific context
 */
export interface Logger {
    debug(message: string, context?: LogContext): void;
    info(message: string, context?: LogContext): void;
    warn(message: string, context?: LogContext): void;
    error(message: string, error?: Error | LogError, context?: LogContext): void;
    child(component: string, operation?: string): Logger;
}
/**
 * Create a root logger with the specified log level
 *
 * @param level - Log level (debug, info, warn, error)
 * @param pretty - Enable pretty printing for development (default: false)
 * @returns Root logger instance
 */
export declare function createLogger(level?: LogLevel, pretty?: boolean): Logger;
/**
 * Create a child logger for a specific component
 *
 * @param rootLogger - Root logger instance
 * @param component - Component name (e.g., "IngestionService", "MCPServer")
 * @param operation - Optional operation name (e.g., "parseFile", "search")
 * @returns Child logger with component context
 */
export declare function createChildLogger(rootLogger: Logger, component: string, operation?: string): Logger;
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