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export enum LogLevel { TRACE = 0, DEBUG = 1, INFO = 2, WARN = 3, ERROR = 4, } class Logger { private level: LogLevel = LogLevel.INFO; setLevel(level: LogLevel) { this.level = level; } private log(level: LogLevel, message: string, ...args: unknown[]) { if (level >= this.level) { const timestamp = new Date().toISOString(); const levelName = LogLevel[level]; console.log(`[${timestamp}] [${levelName}] ${message}`, ...args); } } trace(message: string, ...args: unknown[]) { this.log(LogLevel.TRACE, message, ...args); } debug(message: string, ...args: unknown[]) { this.log(LogLevel.DEBUG, message, ...args); } info(message: string, ...args: unknown[]) { this.log(LogLevel.INFO, message, ...args); } warn(message: string, ...args: unknown[]) { this.log(LogLevel.WARN, message, ...args); } error(message: string, ...args: unknown[]) { this.log(LogLevel.ERROR, message, ...args); } } export const logger = new Logger();