defmodule AugieWeb.LoggerLive do
  use Phoenix.LiveView
  alias Augie.Sensor
  import Calendar.Strftime
  require Logger

  @moduledoc """
  A Liveview which displays logs from the co-processor.
  """

  def render(assigns) do
    ~L"""
    <div class="card">
      <div class="card-divider">
        <h4>Logs</h4>
      </div>
      <div class="card-section">
        <%= if Enum.any?(@logs) do %>
          <table>
            <%= for log <- @logs do %>
              <tr>
                <td>
                  <%= strftime!(log.at, "%Y-%m-%d %H:%M:%S") %>
                </td>
                <td>
                  <%= log.message %>
                </td>
              </tr>
            <% end %>
          </table>
        <% else %>
          No logs to show.
        <% end %>
      </div>
    </div>
    """
  end

  def mount(_params, _context, socket) do
    if connected?(socket), do: CommunityTheatre.subscribe(Logger)

    {:ok, assign(socket, logs: [])}
  end

  def handle_info(
        {CommunityTheatre, %{topic: Sensor.Logger, payload: sample}},
        %{assigns: logs} = socket
      ) do
    Logger.info("Received log: #{inspect(sample)}")
    {:noreply, assign(socket, logs: [sample | logs])}
  end
end