Executing commands on the outbound session

[rakesh-voiger]

As per the example here https://github.com/kalmik/switchx/blob/master/examples/outbound.ex, i have implemented the outbound socket. From freeswitch, I can call this socket and a new Examples.OutboundSession gets initialized. The init and callback_mode gets called but control never comes to waiting_data or ready methods. I want to answer the call or run some commands on it, but I don't understand where exactly to do them. I tried from init (SwitchX.api(conn, "answer")) but nothing happens, it is just stuck there (I don't think init is the right place to do it though).

[rakesh-voiger]

@kalmik @evangilo @vkletsko @IceDragon200 any thoughts on this one ?

Upon trying a few options, I could get this partially working, but I am sure I am doing some mistakes here.

defmodule FreeSWITCH.OutboundSession do
  @moduledoc false
  @behaviour :gen_statem

  defstruct [
    :conn,
    :session
  ]

  def start_link(conn, session), do: :gen_statem.start_link(__MODULE__, [conn, session], [])

  def init([conn, session]) do
    data = %__MODULE__{
      conn: conn,
      session: session
    }

    # With this WORKAROUND , somehow i am able to get the waiting_data function triggered
    # I think it should have triggered waiting_data automatically.
    Process.send_after(self(), {:switchx_event, SwitchX.Event.new()}, 1000)
    # send(self(), {:switchx_event, SwitchX.Event.new()})

    {:ok, :waiting_data, data}
  end

  def callback_mode(), do: :state_functions

  def ready(:event, {:switchx_event, event}, data) do
   # NEVER comes here
    IO.inspect("event at ready")
    IO.inspect(event)
    {:keep_state, data}
  end

  def waiting_data(:info, {:switchx_event, event}, data) do
    IO.inspect("event at waiting_data, executing answer")
    a = SwitchX.execute(data.conn, nil, "answer", nil) # gets SUTCK here even though FS side call is answered.
    IO.inspect("answering done")
    IO.inspect(a)
    {:next_state, :ready, data}
  end
end