import fs from 'fs';
import yaml from 'js-yaml';

export function parseYaml(path: any) {
  let config;

  if (fs.existsSync(path)) {
    try {
      config = yaml.safeLoad(fs.readFileSync(path, 'utf8'));
    } catch (e) {
      throw new Error(e);
    }
  }

  return config;
}

export function safeDump(obj: object, path: any) {
  let doc;
  try {
    doc = yaml.safeDump(obj, {
      styles: {
        '!!null': 'canonical'
      },
      sortKeys: true,
      skipInvalid: true
    });
  } catch (e) {
    throw new Error(e);
  }

  return fs.writeFileSync(path, doc, 'utf-8');
}