slightly changed how files are stored in the bucket and allows post deletion

lib/mixer/posts/media.ex

@@ -11,6 +11,10 @@ defmodule Mixer.Posts.Media do
   postgres do
     table "media"
     repo Mixer.Repo
+
+    references do
+      reference :tweet, on_delete: :delete
+    end
   end
 
   typescript do

lib/mixer/posts/media_uploader.ex

@@ -10,7 +10,7 @@ defmodule Mixer.Posts.MediaUploader do
     if ext in @extensions, do: :ok, else: {:error, "unsupported file type #{ext}"}
   end
 
-  def storage_dir(_version, {_file, scope}), do: "uploads/media/#{scope.id}"
+  def storage_dir(_version, {_file, scope}), do: "uploads/media/#{scope.user_id}/#{scope.media_id}"
 
   def filename(_version, {file, _scope}) do
     Path.basename(file.file_name, Path.extname(file.file_name))

lib/mixer/posts/tweet_like.ex

@@ -8,6 +8,10 @@ defmodule Mixer.Posts.TweetLike do
   postgres do
     table "tweet_likes"
     repo Mixer.Repo
+
+    references do
+      reference :tweet, on_delete: :delete
+    end
   end
 
   actions do

lib/mixer_web/controllers/upload_controller.ex

@@ -11,15 +11,17 @@ defmodule MixerWeb.UploadController do
       |> put_status(:unauthorized)
       |> json(%{error: "authentication required"})
     else
-      scope = %{id: Ash.UUID.generate()}
+      media_id = Ash.UUID.generate()
+      scope = %{user_id: actor.id, media_id: media_id}
 
       case MediaUploader.store({upload, scope}) do
         {:ok, file_name} ->
-          s3_key = "uploads/media/#{scope.id}/#{file_name}"
+          s3_key = "uploads/media/#{scope.user_id}/#{scope.media_id}/#{file_name}"
           url = MediaUploader.url({file_name, scope})
 
           Mixer.Posts.Media
           |> Ash.Changeset.for_create(:upload, %{s3_key: s3_key}, actor: actor)
+          |> Ash.Changeset.force_change_attribute(:id, media_id)
           |> Ash.create()
           |> case do
             {:ok, media} ->