/**
 * Log Output Formatters for PromptSpeak MCP Server
 *
 * Provides different output formats for log entries:
 * - ConsoleFormatter: Human-readable, colored output for development
 * - JSONFormatter: Structured JSON output for production/log aggregation
 */
import { LogEntry } from './types.js';
/**
 * Interface for log formatters
 */
export interface LogFormatter {
    /**
     * Formats a log entry into a string for output
     */
    format(entry: LogEntry): string;
}
/**
 * Human-readable console formatter with optional color support.
 *
 * Output format:
 * [2024-01-06T12:34:56.789Z] INFO  [ModuleName] Message here { data: "value" }
 */
export declare class ConsoleFormatter implements LogFormatter {
    private colorize;
    constructor(colorize?: boolean);
    format(entry: LogEntry): string;
    private formatData;
    private formatError;
}
/**
 * JSON formatter for structured logging.
 * Each log entry is output as a single line of JSON.
 * Suitable for log aggregation systems (ELK, CloudWatch, etc.)
 */
export declare class JSONFormatter implements LogFormatter {
    private pretty;
    constructor(pretty?: boolean);
    format(entry: LogEntry): string;
}
/**
 * Factory function to create the appropriate formatter based on configuration
 */
export declare function createFormatter(format: 'json' | 'console', options?: {
    colorize?: boolean;
    pretty?: boolean;
}): LogFormatter;
//# sourceMappingURL=formatters.d.ts.map