PAYG Accessory&

SketchSystems.spec

PAYG Accessory&
  Link State
    Unlinked*
      valid_link_challenge_received->Authenticating Link
    Linking
      Authenticating Link
        authenticated_ok->Respond Confirming Link
        failed_authentication-> Error During Linking
      Respond Confirming Link
        respond_success->Linked
      Error During Linking
        send_error_message->Unlinked
    Linked
      Linked Idle
        TICK->Link Timeout Expired?
        valid_unlink_command_received->Unlinking
        unlink_button_pressed->Unlinking
        PAYG Credit
          Disabled*
            set_credit_greater_than_0_rcvd->Enabled    
          Enabled
           credit_expires->Disabled
           set_credit_equal_0_rcvd->Disabled
      Link Timeout Expired?
        # We assume that an accessory that doesn't detect activity from a controller
        # for a certain 'Link Timeout' simply unlinks itself...
        timeout expired?->Unlinked
        timeout not expired?->Linked
    Unlinking
      send_delete_link_message->Unlinked


      

SketchSystems_prototype.js

function render(model){
  let payg_state_name = model.active_states[1].name;
  let link_state_name = model.active_states[0].name;
  return $("h1",
           {style: {color: "darkBlue"}},
           `The current link state is: ${link_state_name}, PAYG state is ${payg_state_name}`);
}