/**
* Logging utilities for HeroUI MCP Server
*/
export enum LogLevel {
DEBUG = 0,
INFO = 1,
WARN = 2,
ERROR = 3,
}
export interface Logger {
debug(message: string, ...args: unknown[]): void;
info(message: string, ...args: unknown[]): void;
warn(message: string, ...args: unknown[]): void;
error(message: string, ...args: unknown[]): void;
}
class ConsoleLogger implements Logger {
constructor(private readonly level: LogLevel = LogLevel.INFO) {}
debug(message: string, ...args: unknown[]): void {
if (this.level <= LogLevel.DEBUG) {
console.debug(`[DEBUG] ${new Date().toISOString()} ${message}`, ...args);
}
}
info(message: string, ...args: unknown[]): void {
if (this.level <= LogLevel.INFO) {
console.info(`[INFO] ${new Date().toISOString()} ${message}`, ...args);
}
}
warn(message: string, ...args: unknown[]): void {
if (this.level <= LogLevel.WARN) {
console.warn(`[WARN] ${new Date().toISOString()} ${message}`, ...args);
}
}
error(message: string, ...args: unknown[]): void {
if (this.level <= LogLevel.ERROR) {
console.error(`[ERROR] ${new Date().toISOString()} ${message}`, ...args);
}
}
}
/**
* Create logger instance
*/
export function createLogger(level: LogLevel = LogLevel.INFO): Logger {
return new ConsoleLogger(level);
}
/**
* Default logger instance
*/
export const logger = createLogger(
process.env.NODE_ENV === "development" ? LogLevel.DEBUG : LogLevel.INFO,
);
