fix: using defaults data when the json metadata file is missing

lib/podcast_feed/provider/archive/parser.ex

@@ -13,9 +13,21 @@ defmodule PodcastFeed.Provider.Archive.Parser do
 
   defp fetch_extra_metadata(identifier) do
     extra_metadata_url = Format.compile(@extra_metadata_url, identifier: identifier)
-    {:ok, 200, _headers, client_ref} = :hackney.get(extra_metadata_url, [], "", [follow_redirect: true])
-    {:ok, extra_metadata_json} = :hackney.body(client_ref)
-    extra_metadata_json |> String.split("\n") |> Enum.join() |> Poison.decode!()
+    case :hackney.get(extra_metadata_url, [], "", [follow_redirect: true]) do
+      {:ok, 200, _headers, client_ref} ->
+        {:ok, extra_metadata_json} = :hackney.body(client_ref)
+        extra_metadata_json |> String.split("\n") |> Enum.join() |> Poison.decode!()
+    _ -> %{
+          "link" => "",
+          "image" => %{
+            "url" => "",
+            "title" => "",
+            "link" => "",
+          },
+          "category" => "",
+          "explicit" => "",
+        }
+    end
   end
 
   defp fetch_metadata(identifier) do
@@ -27,12 +39,11 @@ defmodule PodcastFeed.Provider.Archive.Parser do
   end
 
   def parse(identifier, %{"metadata" => metadata, "files" => files}, extra) do
-    _image = files |> fetch_image(identifier)
-
+    # cover = files |> fetch_cover(identifier)
     %{podcast: podcast_data(metadata, extra), items: items_data(files, identifier)}
   end
 
-  defp fetch_image(files, identifier) do
+  defp fetch_cover(files, identifier) do
     filename = files
     |> Enum.filter(fn f -> f["source"] == "original" end)
     |> Enum.filter(fn f -> f["format"] == "JPEG" end) #FIXME:! jpg, png, gif