/**
* Simple logger utility for consistent logging across the application
*/
export enum LogLevel {
DEBUG = 'debug',
INFO = 'info',
WARN = 'warn',
ERROR = 'error',
}
class Logger {
private enabled: boolean = process.env.MCP_DEBUG === 'true';
private level: LogLevel = LogLevel.INFO;
/**
* Log debug message
*/
debug(message: string, ...args: any[]): void {
if (this.enabled && this.shouldLog(LogLevel.DEBUG)) {
console.log(`[DEBUG] ${message}`, ...args);
}
}
/**
* Log info message
*/
info(message: string, ...args: any[]): void {
if (this.enabled && this.shouldLog(LogLevel.INFO)) {
console.log(`[INFO] ${message}`, ...args);
}
}
/**
* Log warning message
*/
warn(message: string, ...args: any[]): void {
if (this.shouldLog(LogLevel.WARN)) {
console.warn(`[WARN] ${message}`, ...args);
}
}
/**
* Log error message
*/
error(message: string, error?: unknown): void {
if (this.shouldLog(LogLevel.ERROR)) {
console.error(`[ERROR] ${message}`);
if (error) {
console.error(error);
}
}
}
/**
* Check if should log based on level
*/
private shouldLog(level: LogLevel): boolean {
const levels = [LogLevel.DEBUG, LogLevel.INFO, LogLevel.WARN, LogLevel.ERROR];
const currentLevelIndex = levels.indexOf(this.level);
const messageLevelIndex = levels.indexOf(level);
return messageLevelIndex >= currentLevelIndex;
}
/**
* Set log level
*/
setLevel(level: LogLevel): void {
this.level = level;
}
/**
* Enable/disable logging
*/
setEnabled(enabled: boolean): void {
this.enabled = enabled;
}
}
// Export singleton instance
export const logger = new Logger();
