export interface Logger {
  debug: (message: string, meta?: Record<string, unknown>) => void;
  info: (message: string, meta?: Record<string, unknown>) => void;
  warn: (message: string, meta?: Record<string, unknown>) => void;
  error: (message: string, meta?: Record<string, unknown>) => void;
}

function formatMessage(
  level: "debug" | "info" | "warn" | "error",
  scope: string,
  message: string,
  meta?: Record<string, unknown>,
): string {
  const prefix = `[${scope}]`;
  if (!meta || Object.keys(meta).length === 0) {
    return `${prefix} ${message}`;
  }
  return `${prefix} ${message} ${JSON.stringify({ level, ...meta })}`;
}

export function createLogger(scope: string): Logger {
  return {
    debug: (message, meta) => {
      console.debug(formatMessage("debug", scope, message, meta));
    },
    info: (message, meta) => {
      console.info(formatMessage("info", scope, message, meta));
    },
    warn: (message, meta) => {
      console.warn(formatMessage("warn", scope, message, meta));
    },
    error: (message, meta) => {
      console.error(formatMessage("error", scope, message, meta));
    },
  };
}