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ex_debug_toolbar

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A debug web toolbar for Phoenix projects to display all sorts of information about request

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ex_debug_toolbar web channels toolbar_channel.ex
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web/channels/toolbar_channel.ex 

defmodule ExDebugToolbar.ToolbarChannel do

  use Phoenix.Channel

  alias ExDebugToolbar.Toolbar

  alias ExDebugToolbar.ToolbarView

  alias ExDebugToolbar.Endpoint

  alias Phoenix.View



  def join("toolbar:request:" <> request_id = topic, _params, socket) do

    ExDebugToolbar.Endpoint.subscribe(topic)

    case Toolbar.get_request(request_id) do

      {:ok, %{stopped?: true} = request} ->

        {:ok, build_payload(request), socket}

      {:ok, _} ->

        {:ok, :pending, socket}

      {:error, reason} ->

        {:error, %{reason: reason}}

    end

  end



  def handle_out("request:ready" = event, %{id: request_id}, socket) do

    {:ok, request} = Toolbar.get_request(request_id)

    push socket, event, build_payload(request)

    {:noreply, socket}

  end



  def broadcast_request(id \\ self()) do

    case Toolbar.get_request(id) do

      {:ok, request} ->

        topic = "toolbar:request:#{request.uuid}"

        Endpoint.broadcast(topic, "request:ready", %{id: request.uuid})

      _ -> :error

    end

  end



  defp build_payload(request) do

    %{

      html: View.render_to_string(ToolbarView, "show.html", [request: request]),

      request: request

    }

  end

end