import { platform, arch, totalmem } from "node:os";
import { log, warn, err } from "../log.js";

export function checkPreflight(): void {
  if (platform() !== "darwin") {
    err("This script is for macOS only.");
  }

  if (arch() !== "arm64") {
    warn("Not running on Apple Silicon — performance may vary.");
  }

  const memGB = Math.floor(totalmem() / 1073741824);
  if (memGB < 32) {
    warn(
      `You have ${memGB}GB RAM. The 32B model needs ~20GB; you may experience swapping.`,
    );
  }
}