import color from "picocolors";
import { createRequire } from "module";

const require = createRequire(import.meta.url);
const pkg = require("../package.json");

export async function checkUpdate() {
  try {
    const res = await fetch(`https://registry.npmmirror.com/${pkg.name}/latest`, {
      signal: AbortSignal.timeout(3000)
    });
    if (!res.ok) return;
    const data = await res.json();
    const latest = data.version;
    if (latest && latest !== pkg.version && isNewer(latest, pkg.version)) {
      console.log(color.yellow(`\n📦 发现新版本: ${color.red(pkg.version)} → ${color.green(latest)}`));
      console.log(color.cyan(`   运行 ${color.bold("yinx upgrade")} 进行更新\n`));
    }
  } catch {}
}

function isNewer(latest, current) {
  const l = latest.split(".").map(Number);
  const c = current.split(".").map(Number);
  for (let i = 0; i < 3; i++) {
    if ((l[i] || 0) > (c[i] || 0)) return true;
    if ((l[i] || 0) < (c[i] || 0)) return false;
  }
  return false;
}