/**
* Simple logger utility
*/
type LogLevel = 'debug' | 'info' | 'warn' | 'error';
const LOG_LEVELS: Record<LogLevel, number> = {
debug: 0,
info: 1,
warn: 2,
error: 3,
};
class Logger {
private level: LogLevel;
constructor() {
this.level = (process.env.LOG_LEVEL as LogLevel) || 'info';
}
private shouldLog(level: LogLevel): boolean {
return LOG_LEVELS[level] >= LOG_LEVELS[this.level];
}
private formatMessage(level: LogLevel, message: string, ...args: any[]): string {
const timestamp = new Date().toISOString();
const formattedArgs = args.length > 0 ? ' ' + JSON.stringify(args) : '';
return `[${timestamp}] [${level.toUpperCase()}] ${message}${formattedArgs}`;
}
debug(message: string, ...args: any[]): void {
if (this.shouldLog('debug')) {
console.debug(this.formatMessage('debug', message, ...args));
}
}
info(message: string, ...args: any[]): void {
if (this.shouldLog('info')) {
console.info(this.formatMessage('info', message, ...args));
}
}
warn(message: string, ...args: any[]): void {
if (this.shouldLog('warn')) {
console.warn(this.formatMessage('warn', message, ...args));
}
}
error(message: string, error?: Error | any, ...args: any[]): void {
if (this.shouldLog('error')) {
const errorDetails = error instanceof Error
? { message: error.message, stack: error.stack }
: error;
console.error(this.formatMessage('error', message, errorDetails, ...args));
}
}
}
export const logger = new Logger();
