Allow subtitle downloading (#11)

* Added subtitle options to media profile model

* Updated media profile form

* Adds subtitle-based options in options builder

* Updates metadata parser to include subtitles

* Adds subtitle_filepaths to media_item

* renamed video_filepath to media_filepath

* Added more fields to media profile show page

lib/pinchflat/profiles/media_profile.ex

@@ -8,9 +8,24 @@ defmodule Pinchflat.Profiles.MediaProfile do
 
   alias Pinchflat.MediaSource.Channel
 
+  @allowed_fields ~w(
+    name
+    output_path_template
+    download_subs
+    download_auto_subs
+    embed_subs
+    sub_langs
+  )a
+
+  @required_fields ~w(name output_path_template)a
+
   schema "media_profiles" do
     field :name, :string
     field :output_path_template, :string
+    field :download_subs, :boolean, default: true
+    field :download_auto_subs, :boolean, default: true
+    field :embed_subs, :boolean, default: true
+    field :sub_langs, :string, default: "en"
 
     has_many :channels, Channel
 
@@ -20,8 +35,8 @@ defmodule Pinchflat.Profiles.MediaProfile do
   @doc false
   def changeset(media_profile, attrs) do
     media_profile
-    |> cast(attrs, [:name, :output_path_template])
-    |> validate_required([:name, :output_path_template])
+    |> cast(attrs, @allowed_fields)
+    |> validate_required(@required_fields)
     |> unique_constraint(:name)
   end
 end

lib/pinchflat/profiles/options/yt_dlp/option_builder.ex

@@ -15,22 +15,62 @@ defmodule Pinchflat.Profiles.Options.YtDlp.OptionBuilder do
         these options
   """
   def build(%MediaProfile{} = media_profile) do
-    {:ok, output_path} = OutputPathBuilder.build(media_profile.output_path_template)
-
     # NOTE: I'll be hardcoding most things for now (esp. options to help me test) -
     # add more configuration later as I build out the models. Walk before you can run!
 
     # NOTE: Looks like you can put different media types in different directories.
     # see: https://github.com/yt-dlp/yt-dlp#output-template
-    {:ok,
-     [
-       :embed_metadata,
-       :embed_thumbnail,
-       :embed_subs,
-       :no_progress,
-       sub_langs: "en.*",
-       output: Path.join(base_directory(), output_path)
-     ]}
+
+    built_options =
+      default_options() ++
+        subtitle_options(media_profile) ++
+        output_options(media_profile)
+
+    {:ok, built_options}
+  end
+
+  # This will be updated a lot as I add new options to profiles
+  defp default_options do
+    [
+      :embed_metadata,
+      :embed_thumbnail,
+      :no_progress
+    ]
+  end
+
+  defp subtitle_options(media_profile) do
+    mapped_struct = Map.from_struct(media_profile)
+
+    Enum.reduce(mapped_struct, [], fn attr, acc ->
+      case {attr, media_profile} do
+        {{:download_subs, true}, _} ->
+          # Force SRT for now - MAY provide as an option in the future
+          acc ++ [:write_subs, convert_subs: "srt"]
+
+        {{:download_auto_subs, true}, %{download_subs: true}} ->
+          acc ++ [:write_auto_subs]
+
+        {{:embed_subs, true}, _} ->
+          acc ++ [:embed_subs]
+
+        {{:sub_langs, sub_langs}, %{download_subs: true}} ->
+          acc ++ [sub_langs: sub_langs]
+
+        {{:sub_langs, sub_langs}, %{embed_subs: true}} ->
+          acc ++ [sub_langs: sub_langs]
+
+        _ ->
+          acc
+      end
+    end)
+  end
+
+  defp output_options(media_profile) do
+    {:ok, output_path} = OutputPathBuilder.build(media_profile.output_path_template)
+
+    [
+      output: Path.join(base_directory(), output_path)
+    ]
   end
 
   defp base_directory do