logger.ts•1.39 kB
type LogLevel = 'debug' | 'info' | 'warn' | 'error';
class Logger {
private level: LogLevel = 'info';
constructor() {
const envLevel = process.env.ACE_LOG_LEVEL?.toLowerCase() as LogLevel;
if (envLevel && ['debug', 'info', 'warn', 'error'].includes(envLevel)) {
this.level = envLevel;
}
}
private shouldLog(level: LogLevel): boolean {
const levels: LogLevel[] = ['debug', 'info', 'warn', 'error'];
return levels.indexOf(level) >= levels.indexOf(this.level);
}
private format(level: LogLevel, message: string, meta?: any): string {
const timestamp = new Date().toISOString();
const metaStr = meta ? ` ${JSON.stringify(meta)}` : '';
return `[${timestamp}] [${level.toUpperCase()}] ${message}${metaStr}`;
}
debug(message: string, meta?: any): void {
if (this.shouldLog('debug')) {
console.debug(this.format('debug', message, meta));
}
}
info(message: string, meta?: any): void {
if (this.shouldLog('info')) {
console.info(this.format('info', message, meta));
}
}
warn(message: string, meta?: any): void {
if (this.shouldLog('warn')) {
console.warn(this.format('warn', message, meta));
}
}
error(message: string, meta?: any): void {
if (this.shouldLog('error')) {
console.error(this.format('error', message, meta));
}
}
}
export const logger = new Logger();