#!/usr/bin/env node

const RELEASE_PREFIX = 'release-'

const getReleaseVersion = (pkg, branch) => {
  const version = require(`../modules/${pkg}/package.json`).version

  if (branch && branch.indexOf(RELEASE_PREFIX) === 0) {
    const release = branch.replace(RELEASE_PREFIX, '')
    if (release !== version) {
      console.warn('⚠️   Release branch version mismatch:')
      console.warn('    "%s" should be "%s" in %s/package.json', version, release, pkg)
    }
    return release
  } else {
    return version
  }
}

if (module.parent) {
  module.exports = getReleaseVersion
} else {
  const args = process.argv.slice(2)
  const pkg = args.shift() || 'primer-css'
  const branch = args.shift() || process.env.TRAVIS_BRANCH
  const version = getReleaseVersion(pkg, branch)
  console.log(version)
}