vaccins/lib/vaccins_web/live/index.ex

defmodule VaccinsWeb.IndexLive do
  use VaccinsWeb, :live_view
  alias Vaccins.{Queries, Search}

  @impl true
  def mount(_params, _session, socket) do
    queries = Queries.valid_queries()

    {:ok,
     socket
     |> assign(
       valid_queries: queries,
       pending: %{},
       availabilities: queries |> Map.new(&{&1.id, []})
     )}
  end

  @impl true
  def handle_event(
        "trigger_query",
        %{"id" => query_id},
        socket = %{assigns: %{valid_queries: valid, pending: pending}}
      ) do
    query = valid |> Enum.find(&(&1.id == query_id))
    ref = Search.async_trigger_query(query)
    {:noreply, socket |> assign(pending: pending |> Map.put(ref, query_id))}
  end

  @impl true
  def handle_info(
        {:query_result, ref, res},
        socket = %{assigns: %{valid_queries: valid, pending: pending}}
      ) do
    query = pending |> Map.get(ref) |> IO.inspect()
    res |> IO.inspect()
    {:noreply, socket |> assign(pending: pending |> Map.delete(ref))}
  end

  defp render_query(q) do
    ~E"""
      <dl class="show-metadata">
        <dt>id</dt>
        <dd><%= q.id %></dd>
        <dt>booking page</dt>
        <dd><%= link q.booking_page, to: q.booking_page %></dd>
        <dt>Availabilities</dt>
        <dd></dd>
        <dt>test availability</dt>
        <dd><button phx-click="trigger_query" phx-value-id="<%= q.id %>">Trigger</button></dd>
      </dl>
    """
  end
end