// lib/python.ts
// Resolve the Python interpreter the workbench should spawn for
// running scripts in scripts/.
//
// The capture + push scripts import third-party modules (requests,
// playwright, dotenv) that are tracked in scripts/requirements.txt
// but only installed inside scripts/.venv/. Spawning bare `python`
// resolves to the system Python (e.g. C:\Users\SJ\AppData\Local\Programs\Python\Python311\python.exe),
// which does NOT have these modules → ModuleNotFoundError at import.
//
// Prefer the venv Python; fall back to `python` (PATH lookup) if
// the venv doesn't exist for some reason.

import { existsSync } from "node:fs";
import path from "node:path";

const SCRIPTS_DIR = path.join(process.cwd(), "scripts");

export function getPythonExecutable(): string {
  const venvPythonWin = path.join(SCRIPTS_DIR, ".venv", "Scripts", "python.exe");
  const venvPythonPosix = path.join(SCRIPTS_DIR, ".venv", "bin", "python");
  if (existsSync(venvPythonWin)) return venvPythonWin;
  if (existsSync(venvPythonPosix)) return venvPythonPosix;
  return "python"; // fallback — caller will get a clear error if it doesn't have the deps
}