تعيين مفاتيح الأجهزة

data class KeySnapshot(
  val keyCode: Int,
  val action: String?,
  val intercepted: Boolean,
)

interface KeyPort {
  fun snapshot(keyCode: Int): KeySnapshot
  fun apply(keyCode: Int, action: String)
  fun restore(snapshot: KeySnapshot)
}

fun applyTemporaryMapping(port: KeyPort, keyCode: Int, action: String) {
  val original = port.snapshot(keyCode)
  try {
    port.apply(keyCode, action)
    // Verify the workflow here before the device leaves the lab.
  } catch (error: Throwable) {
    port.restore(original)
    throw error
  }
}