package main

// Importations
import (
  "fmt"
  "time"
)

// Constantes
var DOpened = 0
var DClosed = 1
var DOpening = 2
var DClosing = 3
var DOpeningStopped = 4
var DClosingStopped = 5

// Variable d'état
var state = DClosed

// État au format chaine
func stateToString(state int) string {
  switch state {
    case DOpened:
      return "Ouvert"

    case DClosed:
      return "Fermé"

    case DOpening:
      return "En cours d'ouverture"

    case DClosing:
      return "En cours de fermeture"

    case DOpeningStopped:
      return "Ouverture arrêtée"

    case DClosingStopped:
      return "Fermeture arrêtée"

    default:
      return "État inconnu"
  }
}

// Afficher l'état au format chaine
func displayState(state int) {
  fmt.Printf("État : %s\n", stateToString(state))
}

// Appuyer sur le bouton
func pushButton(state *int) {
  fmt.Printf("Appui sur le bouton\n")

  switch *state {
    case DOpened, DOpeningStopped:
      *state = DClosing

      displayState(*state)

      for i := 0 ; i < 5000 ; i++ {
        if *state == DClosing {
          time.Sleep(1 * time.Millisecond)
        } else {
          return
        }
      }

      *state = DClosed
      displayState(*state)

    case DClosed, DClosingStopped:
      *state = DOpening

      displayState(*state)

      for i := 0 ; i < 5000 ; i++ {
        if *state == DOpening {
          time.Sleep(1 * time.Millisecond)
        } else {
          return
        }
      }

      *state = DOpened
      displayState(*state)

    case DOpening:
      *state = DOpeningStopped

      displayState(*state)

    case DClosing:
      *state = DClosingStopped

      displayState(*state)
  }
}

func main() {
  var input string

  for {
    fmt.Scanln(&input)

    go pushButton(&state)
  }
}