Adds thumbnails as episode-level images for podcasts (#201)

test/pinchflat/podcasts/rss_feed_builder_test.exs

@@ -137,6 +137,34 @@ defmodule Pinchflat.Podcasts.RssFeedBuilderTest do
       assert String.contains?(item_xml, ~s(length="1234"))
       assert String.contains?(item_xml, ~s(type="video/mp4"))
     end
+
+    test "returns image tags if the media has a thumbnail", %{source: source} do
+      media_item = media_item_with_attachments(%{source_id: source.id, media_size_bytes: 1234})
+
+      res = RssFeedBuilder.build(source)
+      [_before, item_xml, _after] = String.split(res, ~r(</?item>))
+
+      assert String.contains?(
+               item_xml,
+               ~s(<itunes:image href="http://localhost:8945/media/#{media_item.uuid}/episode_image.jpg"></itunes:image>)
+             )
+
+      assert String.contains?(
+               item_xml,
+               ~s(<podcast:images srcset="http://localhost:8945/media/#{media_item.uuid}/episode_image.jpg" />)
+             )
+    end
+
+    test "does not return image tags if the media does not have a thumbnail", %{source: source} do
+      media_item = media_item_with_attachments(%{source_id: source.id})
+      File.rm!(media_item.thumbnail_filepath)
+
+      res = RssFeedBuilder.build(source)
+      [_before, item_xml, _after] = String.split(res, ~r(</?item>))
+
+      refute String.contains?(item_xml, ~s(itunes:image))
+      refute String.contains?(item_xml, ~s(podcast:images))
+    end
   end
 
   defp format_date(date) do

test/pinchflat_web/controllers/podcast_controller_test.exs

@@ -1,6 +1,7 @@
 defmodule PinchflatWeb.PodcastControllerTest do
   use PinchflatWeb.ConnCase
 
+  import Pinchflat.MediaFixtures
   import Pinchflat.SourcesFixtures
 
   describe "rss_feed" do
@@ -35,4 +36,25 @@ defmodule PinchflatWeb.PodcastControllerTest do
       assert conn.resp_body == "Image not found"
     end
   end
+
+  describe "episode_image" do
+    test "returns an episode image if one can be found", %{conn: conn} do
+      media_item = media_item_with_attachments()
+
+      conn = get(conn, ~p"/media/#{media_item.uuid}/episode_image" <> ".jpg")
+
+      assert conn.status == 200
+      assert {"content-type", "image/jpeg; charset=utf-8"} in conn.resp_headers
+      assert conn.resp_body == File.read!(media_item.thumbnail_filepath)
+    end
+
+    test "returns 404 if an image cannot be found", %{conn: conn} do
+      media_item = media_item_fixture()
+
+      conn = get(conn, ~p"/media/#{media_item.uuid}/episode_image" <> ".jpg")
+
+      assert conn.status == 404
+      assert conn.resp_body == "Image not found"
+    end
+  end
 end

test/support/fixtures/media_fixtures.ex

@@ -67,16 +67,24 @@ defmodule Pinchflat.MediaFixtures do
   end
 
   def media_item_with_attachments(attrs \\ %{}) do
-    stored_media_filepath =
+    base_dir =
       Path.join([
         Application.get_env(:pinchflat, :media_directory),
-        "#{:rand.uniform(1_000_000)}",
-        "#{:rand.uniform(1_000_000)}_media.mp4"
+        "#{:rand.uniform(1_000_000)}"
       ])
 
+    stored_media_filepath = Path.join(base_dir, "#media.mp4")
+    thumbnail_filepath = Path.join(base_dir, "thumbnail.jpg")
+
     FilesystemUtils.cp_p!(media_filepath_fixture(), stored_media_filepath)
+    FilesystemUtils.cp_p!(thumbnail_filepath_fixture(), thumbnail_filepath)
+
+    merged_attrs =
+      Map.merge(attrs, %{
+        media_filepath: stored_media_filepath,
+        thumbnail_filepath: thumbnail_filepath
+      })
 
-    merged_attrs = Map.merge(attrs, %{media_filepath: stored_media_filepath})
     media_item_fixture(merged_attrs)
   end