import { execSync, spawn } from "node:child_process"
import { platform } from "node:os"

function detectPython() {
  const candidates = platform() === "win32" ? ["python", "python3"] : ["python3", "python"]
  for (const cmd of candidates) {
    try {
      const out = execSync(platform() === "win32" ? `where ${cmd}` : `which ${cmd}`, { encoding: "utf8", timeout: 5000 })
      const path = out.trim().split("\n")[0].replace(/\r$/, "")
      if (path) return path
    } catch {}
  }
  console.error("Python not found. Install Python 3 from https://python.org")
  process.exit(1)
}

const PYTHON = detectPython()
const script = process.argv[2]
const args = process.argv.slice(3)

if (!script) {
  console.error("Usage: node run-python.mjs <script> [args...]")
  process.exit(1)
}

const proc = spawn(PYTHON, [script, ...args], { stdio: "inherit" })
proc.on("exit", (code) => process.exit(code ?? 1))
