[Enhancement] Redownload new media after a delay (#173)

* Added redownload-related columns

* Added methods for fetching re-downloadable media items

* Filled out redownload worker + tests

* Added redownload worker to config.exs cron

* Added to UI and README

test/pinchflat/downloading/media_download_worker_test.exs

@@ -62,7 +62,9 @@ defmodule Pinchflat.Downloading.MediaDownloadWorkerTest do
 
       assert media_item.media_filepath == nil
       perform_job(MediaDownloadWorker, %{id: media_item.id})
-      assert Repo.reload(media_item).media_filepath != nil
+      media_item = Repo.reload(media_item)
+
+      assert media_item.media_filepath != nil
     end
 
     test "it saves the metadata to the media_item", %{media_item: media_item} do
@@ -149,6 +151,28 @@ defmodule Pinchflat.Downloading.MediaDownloadWorkerTest do
       assert media_item.media_size_bytes > 0
     end
 
+    test "saves redownloaded_at if this is for a redownload", %{media_item: media_item} do
+      expect(YtDlpRunnerMock, :run, fn _url, _opts, _ot, _addl ->
+        {:ok, render_metadata(:media_metadata)}
+      end)
+
+      perform_job(MediaDownloadWorker, %{id: media_item.id, redownload?: true})
+      media_item = Repo.reload(media_item)
+
+      assert media_item.media_redownloaded_at != nil
+    end
+
+    test "doesn't save redownloaded_at if this is not for a redownload", %{media_item: media_item} do
+      expect(YtDlpRunnerMock, :run, fn _url, _opts, _ot, _addl ->
+        {:ok, render_metadata(:media_metadata)}
+      end)
+
+      perform_job(MediaDownloadWorker, %{id: media_item.id})
+      media_item = Repo.reload(media_item)
+
+      assert media_item.media_redownloaded_at == nil
+    end
+
     test "does not blow up if the record doesn't exist" do
       assert :ok = perform_job(MediaDownloadWorker, %{id: 0})
     end