#!/usr/bin/env node

import { access, copyFile, mkdir } from 'node:fs/promises';
import path from 'node:path';

const cwd = process.cwd();

function parseArgs(argv) {
  const out = {};
  for (let i = 0; i < argv.length; i += 1) {
    const token = argv[i];
    if (!token.startsWith('--')) continue;
    const key = token.slice(2);
    const next = argv[i + 1];
    if (!next || next.startsWith('--')) {
      out[key] = 'true';
      continue;
    }
    out[key] = next;
    i += 1;
  }
  return out;
}

async function exists(filePath) {
  try {
    await access(filePath);
    return true;
  } catch {
    return false;
  }
}

async function main() {
  const args = parseArgs(process.argv.slice(2));
  const configDir = path.resolve(cwd, 'config');
  const source = path.resolve(configDir, 'github-app-routing.example.json');
  const target = path.resolve(configDir, args.target || 'github-app-routing.local.json');
  const force = args.force === 'true';

  await mkdir(configDir, { recursive: true });
  if (!force && (await exists(target))) {
    console.log(JSON.stringify({ ok: true, created: false, source, target, message: 'local routing config already exists' }, null, 2));
    return;
  }

  await copyFile(source, target);
  console.log(JSON.stringify({ ok: true, created: true, source, target }, null, 2));
}

main().catch((error) => {
  console.error(error instanceof Error ? error.message : String(error));
  process.exit(1);
});