// Native
const { join } = require('path')

// Packages
const fs = require('fs-extra')
const chalk = require('chalk')

// Ours
const { error } = require('./error')
const readMetaData = require('./read-metadata')
const NowAlias = require('./alias')
const NowDomains = require('./domains')

exports.assignAlias = async (
  autoAlias,
  token,
  deployment,
  apiUrl,
  debug,
  currentTeam,
  user
) => {
  const aliases = new NowAlias({ apiUrl, token, debug, currentTeam })
  const domains = new NowDomains({ apiUrl, token, debug, currentTeam })
  console.log(
    `> Assigning alias ${chalk.bold.underline(autoAlias)} to deployment...`
  )

  // Assign alias
  await aliases.set(
    String(deployment),
    String(autoAlias),
    domains,
    currentTeam,
    user
  )
}

exports.reAlias = async (
  token,
  host,
  pointer,
  help,
  exit,
  apiUrl,
  debug,
  alias,
  currentTeam,
  user
) => {
  const path = process.cwd()

  const configFiles = {
    pkg: join(path, 'package.json'),
    nowJSON: join(path, 'now.json')
  }

  if (!fs.existsSync(configFiles.pkg) && !fs.existsSync(configFiles.nowJSON)) {
    error(
      `Couldn't find a now.json or package.json file with an alias list in it`
    )
    return
  }

  const { nowConfig, name } = await readMetaData(path, {
    deploymentType: 'npm', // Hard coding settings…
    quiet: true // `quiet`
  })

  if (!host) {
    const lastAlias = await alias.last(name)
    host = lastAlias.url
  }

  if (!nowConfig) {
    help()
    return exit(0)
  }

  let pointers = []

  if (pointer) {
    pointers.push(pointer)
  } else {
    if (nowConfig.alias) {
      const value = nowConfig.alias

      if (typeof value === 'string') {
        pointers.push(value)
      } else if (Array.isArray(value)) {
        pointers = pointers.concat(nowConfig.alias)
      } else {
        error(
          `Property ${chalk.grey('aliases')} is not a valid array or string`
        )
        return exit(1)
      }
    }

    if (nowConfig.aliases && Array.isArray(nowConfig.aliases)) {
      console.log(
        `${chalk.red('Deprecated!')} The property ${chalk.grey('aliases')} will be ` +
          `removed from the config file soon.`
      )
      console.log('Read more about the new way here: http://bit.ly/2l2v5Fg\n')

      pointers = pointers.concat(nowConfig.aliases)
    }
  }

  if (pointers.length === 0) {
    help()
    return exit(0)
  }

  const assignments = []

  for (const pointer of pointers) {
    assignments.push(
      exports.assignAlias(
        pointer,
        token,
        host,
        apiUrl,
        debug,
        currentTeam,
        user
      )
    )
  }

  await Promise.all(assignments)
}