Claude Infinite Context

/** * Simple structured logging utility */ export enum LogLevel { DEBUG = 'DEBUG', INFO = 'INFO', WARN = 'WARN', ERROR = 'ERROR', } interface LogEntry { timestamp: string; level: LogLevel; message: string; data?: unknown; } class Logger { private minLevel: LogLevel; constructor(minLevel: LogLevel = LogLevel.INFO) { this.minLevel = minLevel; } private shouldLog(level: LogLevel): boolean { const levels = [LogLevel.DEBUG, LogLevel.INFO, LogLevel.WARN, LogLevel.ERROR]; return levels.indexOf(level) >= levels.indexOf(this.minLevel); } private log(level: LogLevel, message: string, data?: unknown): void { if (!this.shouldLog(level)) { return; } const entry: LogEntry = { timestamp: new Date().toISOString(), level, message, ...(data !== undefined && { data }), }; const output = JSON.stringify(entry); switch (level) { case LogLevel.ERROR: console.error(output); break; case LogLevel.WARN: console.warn(output); break; default: console.log(output); } } debug(message: string, data?: unknown): void { this.log(LogLevel.DEBUG, message, data); } info(message: string, data?: unknown): void { this.log(LogLevel.INFO, message, data); } warn(message: string, data?: unknown): void { this.log(LogLevel.WARN, message, data); } error(message: string, data?: unknown): void { this.log(LogLevel.ERROR, message, data); } } // Export singleton instance export const logger = new Logger( process.env.LOG_LEVEL === 'DEBUG' ? LogLevel.DEBUG : LogLevel.INFO );