'use strict'

const co = require('co')
const cli = require('heroku-cli-util')

function * run (context, heroku) {
  const _ = require('lodash')

  let git = require('../../git')(context)

  let oldApp = context.app
  let newApp = context.args.newname

  let request = heroku.request({
    method: 'PATCH',
    path: `/apps/${oldApp}`,
    body: { name: newApp }
  })
  let app = yield cli.action(`Renaming ${cli.color.cyan(oldApp)} to ${cli.color.green(newApp)}`, request)
  let gitUrl = context.flags['ssh-git'] ? git.sshGitHurl(app.name) : git.gitUrl(app.name)
  cli.log(`${app.web_url} | ${gitUrl}`)

  if (git.inGitRepo()) {
    // delete git remotes pointing to this app
    yield _(yield git.listRemotes())
      .filter((r) => git.gitUrl(oldApp) === r[1] || git.sshGitUrl(oldApp) === r[1])
      .map((r) => r[0])
      .uniq()
      .map((r) => {
        return git.rmRemote(r)
          .then(() => git.createRemote(r, gitUrl))
          .then(() => cli.log(`Git remote ${r} updated`))
      }).value()
  }

  cli.warn("Don't forget to update git remotes for all other local checkouts of the app.")
}

let cmd = {
  description: 'rename an app',
  help: 'This will locally update the git remote if it is set to the old app.',
  examples: `$ heroku apps:rename --app oldname newname
https://newname.herokuapp.com/ | https://git.heroku.com/newname.git
Git remote heroku updated`,
  needsAuth: true,
  needsApp: true,
  args: [{ name: 'newname' }],
  flags: [
    { name: 'ssh-git', description: 'use ssh git protocol instead of https' }
  ],
  run: cli.command(co.wrap(run))
}

module.exports = [
  Object.assign({ topic: 'apps', command: 'rename' }, cmd),
  Object.assign({ topic: 'rename', hidden: true }, cmd)
]