defmodule MihainatorWeb.UploadLive do
  use MihainatorWeb, :live_view

  @impl Phoenix.LiveView
  def mount(_params, _session, socket) do
    {:ok,
      socket
      |> assign(:uploaded_files, [])
      |> allow_upload(:avatar, accept: ~w(.csv .jpeg))}
  end

  @impl Phoenix.LiveView
  def handle_event("validate", _params, socket) do
    {:noreply, socket}
  end

  @impl Phoenix.LiveView
  def handle_event("cancel-upload", %{"ref" => ref}, socket) do
    {:noreply, cancel_upload(socket, :avatar, ref)}
  end

  @impl Phoenix.LiveView
  def handle_event("save", _params, socket) do
    uploaded_files =
      consume_uploaded_entries(socket, :avatar, fn %{path: path}, _entry ->
        line_count = File.stream!(path)
        |> Enum.count()

        IO.puts(line_count)

        {:ok, line_count}
      end)

    {:noreply, update(socket, :uploaded_files, &(&1 ++ uploaded_files))}
  end

  defp error_to_string(:too_large), do: "Too large"
  defp error_to_string(:not_accepted), do: "You have selected an unacceptable file type"
end