defmodule PostlandWeb.FollowingLive do
  use PostlandWeb, :live_view

  alias Postland.Actors
  alias Postland.Follows

  def render(assigns) do
    ~H"""
    <div class="py-4">
      <h3 class="text-base font-semibold">Following</h3>
      <p :if={@count == 0} class="text-gray-400">
        You aren't following anyone.
      </p>
      <div :for={{dom_id, %{confirmed: confirmed, account: acct}} <- @streams.accounts} class="mt-2">
        <.profile_card
          id={dom_id}
          account={acct}
          dom_id={dom_id}
          status={if confirmed, do: :following_confirmed, else: :following_pending}
        />
      </div>
    </div>
    """
  end

  def mount(_params, _session, socket) do
    follows =
      Follows.all_following()
      |> Enum.map(fn follow ->
        %{
          id: follow.followee,
          confirmed: !!follow.confirmed_at,
          account: Actors.actor(follow.followee)
        }
      end)
      |> Enum.reject(&is_nil(&1.account))

    account_count = Enum.count(follows)

    socket =
      socket
      |> stream(:accounts, follows)
      |> assign(:count, account_count)

    {:ok, socket}
  end

  def handle_event("withdraw", %{"id" => id, "dom-id" => dom_id}, socket) do
    request = Follows.get(Postland.my_actor_id(), id)

    socket =
      case Follows.record_and_send_withdrawl(request) do
        {:ok, _} ->
          socket
          |> stream_delete_by_dom_id(:accounts, dom_id)
          |> assign(:count, socket.assigns.count - 1)

        _ ->
          put_flash(socket, :error, "An unexpected error occurred.")
      end

    {:noreply, socket}
  end

  def handle_event("unfollow", %{"id" => id, "dom-id" => dom_id}, socket) do
    request = Follows.get(Postland.my_actor_id(), id)

    socket =
      case Follows.record_and_unfollow(request) do
        {:ok, _} ->
          socket
          |> stream_delete_by_dom_id(:accounts, dom_id)
          |> assign(:count, socket.assigns.count - 1)

        _ ->
          put_flash(socket, :error, "An unexpected error occurred.")
      end

    {:noreply, socket}
  end
end