const childProcess = require('child_process');
const fs = require('fs');
const path = require('path');
const glob = require('glob');

const filePaths = glob
  .sync('package.json')
  .concat(glob.sync('packages/*/package.json'))
  .map(filePath => path.resolve(process.cwd(), filePath));

const reinstall = (filePath, data, key) => {
  const dependencyVersions = Object.entries(data[key]).map(
    ([name, version]) => `${name}@${version}`
  );
  const options = key === 'dependencies' ? ['--save'] : ['--save', '--save-dev'];
  childProcess.spawnSync('npm', ['install'].concat(options).concat(dependencyVersions), {
    cwd: filePath.replace('/package.json', ''),
    encoding: 'utf-8',
    env: process.env,
    stdio: 'pipe'
  });
};

filePaths.forEach(filePath => {
  console.log(filePath);
  const raw = fs.readFileSync(filePath, { encoding: 'utf8' });

  const clone = JSON.parse(raw);
  clone.dependencies && (clone.dependencies = {});
  clone.devDependencies && (clone.devDependencies = {});
  fs.writeFileSync(filePath, JSON.stringify(clone, null, 2), { encoding: 'utf8' });

  const data = JSON.parse(raw);
  data.dependencies && reinstall(filePath, data, 'dependencies');
  data.devDependencies && reinstall(filePath, data, 'devDependencies');
});