Claude set up a '/labels' endpoint

lib/labelmaker_web/controllers/labels_controller.ex

@@ -0,0 +1,38 @@
+defmodule LabelmakerWeb.LabelsController do
+  use LabelmakerWeb, :controller
+
+  @label_dir Path.join(:code.priv_dir(:labelmaker), "static/labels")
+
+  def index(conn, _params) do
+    labels = list_labels()
+    render(conn, :index, labels: labels)
+  end
+
+  defp list_labels do
+    case File.ls(@label_dir) do
+      {:ok, files} ->
+        files
+        |> Enum.filter(&String.ends_with?(&1, ".png"))
+        |> Enum.map(fn filename ->
+          filepath = Path.join(@label_dir, filename)
+          stat = File.stat!(filepath)
+
+          %{
+            filename: filename,
+            filepath: filepath,
+            size: stat.size,
+            modified: stat.mtime,
+            url: "/labels/#{filename}"
+          }
+        end)
+        |> Enum.sort_by(& &1.modified, :desc)
+
+      {:error, :enoent} ->
+        # Directory doesn't exist yet
+        []
+
+      {:error, _reason} ->
+        []
+    end
+  end
+end