const { spawn } = require('child_process');
const fs = require('fs');
const path = require('path');
require('dotenv').config();

module.exports = async () => {
  fs.mkdirSync(path.resolve('results'), { recursive: true });
  if (process.env.START_ERP !== 'true') return;

  const cwd = process.env.ERP_WORKDIR;
  const cmd = process.env.ERP_COMMAND || 'uvicorn app.main:app --reload';
  const child = spawn(cmd, { cwd, shell: true, env: process.env });
  global.__ERP_PROCESS__ = child;
  const logFile = path.resolve('results/erp-console.log');
  fs.writeFileSync(logFile, '');
  const append = (buf) => {
    const text = buf.toString();
    fs.appendFileSync(logFile, text);
    const otp = text.match(/\[DEV OTP\].*?code=(\d{4,8})/i);
    if (otp) fs.writeFileSync(path.resolve('results/current-otp.txt'), otp[1]);
  };
  child.stdout.on('data', append);
  child.stderr.on('data', append);
  await new Promise((resolve) => setTimeout(resolve, 5000));
};