Split logic in multiple components

lib/mihainator_web/live/file_input_component.ex

@@ -0,0 +1,34 @@
+defmodule MihainatorWeb.FileInputComponent do
+  @moduledoc false
+
+  use Phoenix.LiveComponent
+
+  @impl true
+  def mount(socket) do
+    {:ok,
+     socket
+     |> assign(:submit_disabled?, true)
+     |> allow_upload(:history, accept: ~w(.csv))}
+  end
+
+  @impl true
+  def handle_event("validate", _params, socket) do
+    {:noreply,
+     socket
+     |> assign(:submit_disabled?, false)}
+  end
+
+  @impl true
+  def handle_event("save", _params, socket) do
+    consume_uploaded_entries(socket, :history, fn %{path: path}, _entry ->
+      Task.async(fn -> Mihainator.Extractor.extract(path) end)
+
+      {:ok, nil}
+    end)
+
+    {:noreply, socket}
+  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