host_genserver.ex

def init(initial_state) do
  state = %{
    ip_address: initial_state.host_ip_address,
    current_status: initial_state.host_status,
    previous_stuatus: initial_state.host_status,
    latency: 0,
    status_changes: 0
  }

  schedule_work()
  {:ok, state}
end

def handle_call(:get_state, _from, state) do
  {:reply, state, state}
end

def handle_info(:work, state) do
  with {:ok, results} <- Check.host_up(state.ip_address) do
    cond do
      state.current_status == results.status ->
        ^state.latency = results.latency
      state.current_status != results.status && state.current_status != "unknown" ->
        state.status = "unknown"
        state.status_changes = state.status_changes + 1
        state.latency = results.latency
      state.current_status == "unknown" && state.previous_status == results.status ->
        state.current_status = results.status
        state.status_changes = 0
        state.latency = results.latency
      state.current_status == "unknown" && state.status_changes < 3 ->
        state.status_changes = state.status_changes + 1
        state.latency =results.latency
      state.current_status == "unknown" && state.status_changes >= 3 ->
        state.current_status = results.status
        state.previous_status = results.status
        state.status_changes = 0
        # Send notification
        # Create status change event
    end
  else
    {:error, error} ->
      IO.puts error
      :error
  end

  IO.inspect state
  schedule_work()
  {:noreply, state}
end