[Enhancement] Allow overriding output templates on a per-source basis (#179)

* Added output path override to table and download option builder

* Added output template override to UI

test/pinchflat/downloading/download_option_builder_test.exs

@@ -4,6 +4,7 @@ defmodule Pinchflat.Downloading.DownloadOptionBuilderTest do
   import Pinchflat.SourcesFixtures
   import Pinchflat.ProfilesFixtures
 
+  alias Pinchflat.Sources
   alias Pinchflat.Profiles
   alias Pinchflat.Utils.FilesystemUtils
   alias Pinchflat.Downloading.DownloadOptionBuilder
@@ -31,6 +32,20 @@ defmodule Pinchflat.Downloading.DownloadOptionBuilderTest do
 
       assert {:output, "/tmp/test/media/#{media_item.source.custom_name}.%(ext)s"} in res
     end
+
+    test "uses source's output override if present", %{media_item: media_item} do
+      source = media_item.source
+      {:ok, _} = Sources.update_source(source, %{output_path_template_override: "override.%(ext)s"})
+
+      media_item =
+        media_item
+        |> Repo.reload()
+        |> Repo.preload(source: :media_profile)
+
+      assert {:ok, res} = DownloadOptionBuilder.build(media_item)
+
+      assert {:output, "/tmp/test/media/override.%(ext)s"} in res
+    end
   end
 
   describe "build/1 when testing default options" do
@@ -135,6 +150,20 @@ defmodule Pinchflat.Downloading.DownloadOptionBuilderTest do
       assert {:output, "thumbnail:/tmp/test/media/%(title)S-thumb.%(ext)s"} in res
     end
 
+    test "appends -thumb to source's output path override, if present", %{media_item: media_item} do
+      media_item = update_media_profile_attribute(media_item, %{download_thumbnail: true})
+      {:ok, _} = Sources.update_source(media_item.source, %{output_path_template_override: "override.%(ext)s"})
+
+      media_item =
+        media_item
+        |> Repo.reload()
+        |> Repo.preload(source: :media_profile)
+
+      assert {:ok, res} = DownloadOptionBuilder.build(media_item)
+
+      assert {:output, "thumbnail:/tmp/test/media/override-thumb.%(ext)s"} in res
+    end
+
     test "converts thumbnail to jpg when download_thumbnail is true", %{media_item: media_item} do
       media_item = update_media_profile_attribute(media_item, %{download_thumbnail: true})
 
@@ -359,6 +388,15 @@ defmodule Pinchflat.Downloading.DownloadOptionBuilderTest do
 
       assert path == "/tmp/test/media/%(title)S.%(ext)s"
     end
+
+    test "uses source's output override if present", %{media_item: media_item} do
+      source = media_item.source
+      {:ok, source} = Sources.update_source(source, %{output_path_template_override: "override.%(ext)s"})
+
+      path = DownloadOptionBuilder.build_output_path_for(source)
+
+      assert path == "/tmp/test/media/override.%(ext)s"
+    end
   end
 
   defp update_media_profile_attribute(media_item_with_preloads, attrs) do

test/pinchflat/sources_test.exs

@@ -35,6 +35,28 @@ defmodule Pinchflat.SourcesTest do
     end
   end
 
+  describe "output_path_template/1" do
+    test "returns the source's override if present" do
+      source = source_fixture(%{output_path_template_override: "/override/{{ title }}.{{ ext }}"})
+
+      assert Sources.output_path_template(source) == "/override/{{ title }}.{{ ext }}"
+    end
+
+    test "returns the media profile's template if no override is present" do
+      media_profile = media_profile_fixture(%{output_path_template: "/profile/{{ title }}.{{ ext }}"})
+      source = source_fixture(%{media_profile_id: media_profile.id})
+
+      assert Sources.output_path_template(source) == "/profile/{{ title }}.{{ ext }}"
+    end
+
+    test "Treats empty strings as being blank" do
+      media_profile = media_profile_fixture(%{output_path_template: "/profile/{{ title }}.{{ ext }}"})
+      source = source_fixture(%{media_profile_id: media_profile.id, output_path_template_override: "  "})
+
+      assert Sources.output_path_template(source) == "/profile/{{ title }}.{{ ext }}"
+    end
+  end
+
   describe "list_sources/0" do
     test "it returns all sources" do
       source = source_fixture()