import ts from 'typescript';
import { TypeCompilerOptions } from './types';
/**
 * Log levels for the type compiler
 */
export declare enum LogLevel {
    ERROR = 0,// Only errors
    WARN = 1,// Errors and warnings
    INFO = 2,// Basic information about the compilation process
    DEBUG = 3,// Detailed information for debugging
    TRACE = 4
}
/**
 * Logger configuration
 */
export interface LoggerConfig {
    /**
     * The minimum log level to display
     */
    level: LogLevel;
    /**
     * Whether to use colors in the console output
     */
    useColors: boolean;
    /**
     * Whether to include timestamps in log messages
     */
    includeTimestamps: boolean;
    /**
     * Whether to log to a file in addition to the console
     */
    logToFile: boolean;
    /**
     * The path to the log file (if logToFile is true)
     */
    logFilePath?: string;
    /**
     * Custom log filter function. Return true to include the message, false to exclude it.
     */
    filter?: (level: LogLevel, message: string, context?: Record<string, any>) => boolean;
}
/**
 * Logger class for the type compiler
 */
export declare class Logger {
    private config;
    private buffer;
    private startTime;
    private compilationMetrics;
    constructor(config?: Partial<LoggerConfig>);
    /**
     * Reconfigure the logger
     */
    configure(config: Partial<LoggerConfig>): void;
    /**
     * Configure the logger from TypeCompilerOptions
     */
    configureFromOptions(options: TypeCompilerOptions): void;
    /**
     * Map TypeCompilerOptions to LogLevel
     */
    private getLogLevelFromOptions;
    /**
     * Log a message at a specific level
     */
    private log;
    /**
     * Log an error message
     */
    error(message: string, context?: Record<string, any>): void;
    /**
     * Log a warning message
     */
    warn(message: string, context?: Record<string, any>): void;
    /**
     * Log an info message
     */
    info(message: string, context?: Record<string, any>): void;
    /**
     * Log a debug message
     */
    debug(message: string, context?: Record<string, any>): void;
    /**
     * Log a trace message
     */
    trace(message: string, context?: Record<string, any>): void;
    /**
     * Handle TypeScript diagnostics
     */
    logDiagnostics(diagnostics: readonly ts.Diagnostic[]): void;
    /**
     * Format diagnostic location information
     */
    private formatDiagnosticLocation;
    /**
     * Update compilation metrics
     */
    updateMetrics(metrics: Partial<Record<string, number>>): void;
    /**
     * Increment a specific metric
     */
    incrementMetric(metric: string, amount?: number): void;
    /**
     * Log compilation summary
     */
    logCompilationSummary(): void;
    /**
     * Start timing an operation
     */
    startTimer(label: string): () => void;
    /**
     * Get the log buffer
     */
    getBuffer(): string[];
    /**
     * Clear the log buffer
     */
    clearBuffer(): void;
    /**
     * Reset compilation metrics
     */
    resetMetrics(): void;
}
export declare const logger: Logger;
export declare function getLogger(): Logger;