const SemanticReleaseError = require('@semantic-release/error');

module.exports = ({pkg, options, env}) => {
  const errors = [];

  if (!pkg.name) {
    errors.push(new SemanticReleaseError('No "name" found in package.json.', 'ENOPKGNAME'));
  }

  if (!pkg.repository || !pkg.repository.url) {
    errors.push(new SemanticReleaseError('No "repository" found in package.json.', 'ENOPKGREPO'));
  }

  if (!options.debug) {
    if (!options.githubToken) {
      errors.push(new SemanticReleaseError('No github token specified.', 'ENOGHTOKEN'));
    }

    if (!(env.NPM_TOKEN || (env.NPM_OLD_TOKEN && env.NPM_EMAIL))) {
      errors.push(new SemanticReleaseError('No npm token specified.', 'ENONPMTOKEN'));
    }
  }

  return errors;
};