feat: switch to phoenix liveview

Co-authored-by: Copilot <copilot@github.com>

lib/bds/desktop/media_controller.ex

@@ -0,0 +1,59 @@
+defmodule BDS.Desktop.MediaController do
+  @moduledoc false
+
+  use Phoenix.Controller, formats: [:html]
+
+  alias BDS.Media
+  alias BDS.Media.Media, as: MediaRecord
+  alias BDS.Projects
+  alias BDS.Repo
+
+  def thumbnail(conn, %{"media_id" => media_id} = params) do
+    case active_media_thumbnail(media_id, Map.get(params, "size")) do
+      {:ok, content_type, path} ->
+        conn
+        |> Plug.Conn.put_resp_content_type(content_type)
+        |> Plug.Conn.send_file(200, path)
+
+      :error ->
+        send_resp(conn, 404, "not found")
+    end
+  end
+
+  defp active_media_thumbnail(media_id, size) do
+    with %{} = project <- Projects.get_active_project(),
+         %MediaRecord{} = media <- Repo.get(MediaRecord, media_id),
+         true <- media.project_id == project.id,
+         relative_path when is_binary(relative_path) <- Media.thumbnail_paths(media)[thumbnail_size(size)],
+         absolute_path = Path.join(Projects.project_data_dir(project), relative_path),
+         true <- File.exists?(absolute_path) do
+      {:ok, thumbnail_content_type(relative_path), absolute_path}
+    else
+      _other -> :error
+    end
+  rescue
+    error in [Exqlite.Error, DBConnection.OwnershipError] ->
+      if match?(%Exqlite.Error{}, error) and not String.contains?(Exception.message(error), "no such table") do
+        reraise error, __STACKTRACE__
+      end
+
+      :error
+  end
+
+  defp thumbnail_size(size) do
+    case to_string(size || "small") do
+      "medium" -> :medium
+      "large" -> :large
+      "ai" -> :ai
+      _other -> :small
+    end
+  end
+
+  defp thumbnail_content_type(path) do
+    case Path.extname(path) do
+      ".jpg" -> "image/jpeg"
+      ".jpeg" -> "image/jpeg"
+      _other -> "image/webp"
+    end
+  end
+end