// eslint-disable-next-line
const importFrom = require('import-from')

function getPackages(context) {
  return Promise.resolve()
    .then(() => {
      const ctx = context || {}
      const cwd = ctx.cwd || process.cwd()
      const Project = importFrom(cwd, '@lerna/project')
      const project = new Project(cwd)
      return project.getPackages()
    })
    .then(packages => {
      return packages
        .map(pkg => pkg.name)
        .map(name => (name.charAt(0) === '@' ? name.split('/')[1] : name))
    })
}

const scopes = [
  'project',
  'core',
  'style',
  'docs',
  'ci',
  'dev',
  'build',
  'deploy',
  'other',
  'typography',
  'color',
  'border',
  'var',
]

module.exports = {
  rules: {
    'scope-enum': ctx =>
      getPackages(ctx).then(packages => [
        2,
        'always',
        [...packages, ...scopes],
      ]),
    'body-leading-blank': [1, 'always'],
    'footer-leading-blank': [1, 'always'],
    'header-max-length': [2, 'always', 72],
    'scope-case': [2, 'always', 'lower-case'],
    'subject-case': [
      1,
      'never',
      ['sentence-case', 'start-case', 'pascal-case', 'upper-case'],
    ],
    'subject-empty': [2, 'never'],
    'subject-full-stop': [2, 'never', '.'],
    'type-case': [2, 'always', 'lower-case'],
    'type-empty': [2, 'never'],
    'type-enum': [
      2,
      'always',
      [
        'build',
        'chore',
        'ci',
        'docs',
        'feat',
        'fix',
        'perf',
        'refactor',
        'revert',
        'style',
        'test',
        'improvement',
      ],
    ],
  },
}