Readline = require 'readline'

Robot         = require '../robot'
Adapter       = require '../adapter'
{TextMessage} = require '../message'

class Shell extends Adapter
  constructor: (@robot, @brain) ->
    super(@robot, @brain)

    @readyDefer.resolve()

  send: (envelope, strings...) ->
    unless process.platform is 'win32'
      console.log "\x1b[01;32m#{str}\x1b[0m" for str in strings
    else
      console.log "#{str}" for str in strings
    @repl.prompt()

  emote: (envelope, strings...) ->
    @send envelope, "* #{str}" for str in strings

  reply: (envelope, strings...) ->
    strings = strings.map (s) -> "#{envelope.user.name}: #{s}"
    @send envelope, strings...

  run: ->
    stdin = process.openStdin()
    stdout = process.stdout

    @repl = Readline.createInterface stdin, stdout, null

    @repl.on 'close', =>
      stdin.destroy()
      @robot.shutdown()
      process.exit 0

    @repl.on 'line', (buffer) =>
      @repl.close() if buffer.toLowerCase() is 'exit'
      @repl.prompt()
      @robot.brain.userForId('1', name: 'Shell', room: 'Shell').then (user) =>
        @receive new TextMessage user, buffer, 'messageId'

    @connectedDefer.resolve()

    @repl.setPrompt "#{@robot.name}> "
    @repl.prompt()

exports.use = (robot) ->
  new Shell robot