'use strict'

let cli = require('heroku-cli-util')
let helpers = require('../lib/helpers')
let Dyno = require('../lib/dyno')
const { DynoSizeCompletion, ProcessTypeCompletion } = require('@heroku-cli/command/lib/completions')
const debug = require('debug')('heroku:run')

async function run (context, heroku) {
  let opts = {
    heroku: heroku,
    app: context.app,
    command: helpers.buildCommand(context.args),
    size: context.flags.size,
    type: context.flags.type,
    notify: !context.flags['no-notify'],
    'exit-code': context.flags['exit-code'],
    env: context.flags.env,
    'no-tty': context.flags['no-tty'],
    attach: true,
    listen: context.flags.listen
  }
  if (!opts.command) throw new Error('Usage: heroku run COMMAND\n\nExample: heroku run bash')

  let dyno = new Dyno(opts)
  try {
    await dyno.start()
    debug('done running')
  } catch (err) {
    debug(err)
    if (err.exitCode) cli.exit(err.exitCode, err)
    else throw err
  }
}

module.exports = {
  topic: 'run',
  description: 'run a one-off process inside a heroku dyno',
  help: 'Shows a notification if the dyno takes more than 20 seconds to start.',
  examples: `$ heroku run bash
Running bash on app.... up, run.1
~ $

$ heroku run -s hobby -- myscript.sh -a arg1 -s arg2
Running myscript.sh -a arg1 -s arg2 on app.... up, run.1`,
  variableArgs: true,
  needsAuth: true,
  needsApp: true,
  flags: [
    { name: 'size', char: 's', description: 'dyno size', hasValue: true, completion: DynoSizeCompletion },
    { name: 'type', description: 'process type', hasValue: true, completion: ProcessTypeCompletion },
    { name: 'exit-code', char: 'x', description: 'passthrough the exit code of the remote command' },
    { name: 'env', char: 'e', description: "environment variables to set (use ';' to split multiple vars)", hasValue: true },
    { name: 'no-tty', description: 'force the command to not run in a tty', hasValue: false },
    { name: 'listen', description: 'listen on a local port', hasValue: false, hidden: true },
    { name: 'no-notify', description: 'disables notification when dyno is up (alternatively use HEROKU_NOTIFICATIONS=0)', hasValue: false }
  ],
  run: cli.command(run)
}