// services/syncJobs.js
// This file handles both 
import { spawn } from 'node:child_process';

function runCmd(bin, args) {
  return new Promise((resolve, reject) => {
    console.log(`[EXEC] ${bin} ${args.join(' ')}`);
    const proc = spawn(bin, args, { stdio: 'inherit' });
    proc.on('error', reject);
    proc.on('close', (code) => {
      if (code === 0) resolve();
      else reject(new Error(`${bin} failed with exit code ${code}`));
    });
  });
}

export async function runRsync(config) {
  const cfg = config.rsync;
  if (!cfg?.enabled) return;

  const mountPoint = config.system.mountPoint;
  const excludes = (cfg.exclude || []).flatMap((pattern) => ['--exclude', pattern]);

  console.log('[RSYNC] Syncing with NAS...');
  await runCmd('rsync', [...cfg.flags, ...excludes, `${mountPoint}/`, `${cfg.nasPath}/`]);

  if (cfg.bidirectional) {
    await runCmd('rsync', [
      ...cfg.flags,
      '--ignore-existing',
      ...excludes,
      `${cfg.nasPath}/`,
      `${mountPoint}/`
    ]);
  }
}

export async function runRclone(config) {
  const cfg = config.rclone;
  if (!cfg?.enabled) return;

  const mountPoint = config.system.mountPoint;
  const excludes = (cfg.exclude || []).flatMap((pattern) => ['--exclude', pattern]);

  console.log('[RCLONE] Syncing with cloud...');
  await runCmd('rclone', ['copy', ...cfg.flags, ...excludes, mountPoint, cfg.remote]);

  if (cfg.bidirectional) {
    await runCmd('rclone', [
      'copy',
      '--ignore-existing',
      ...cfg.flags,
      ...excludes,
      cfg.remote,
      mountPoint
    ]);
  }
}