make path for listing files configurable

apps/storage/lib/match_storage/s3_match_storage.ex

@@ -6,15 +6,19 @@ defmodule Storage.MatchStorage.S3MatchStorage do
     ""
   end
 
-  # check for to get all pages next_continuation_token
+  @doc """
+  Lists all files at the given path.
+
+  iex > Storage.MatchStorage.S3MatchStorage.list_files("matches")
+  """
   @impl true
-  def list_matches() do
+  def list_files(path) do
     {:ok, %{:body => %{:contents => contents, next_continuation_token: next_continuation_token}}} =
-      ExAws.S3.list_objects_v2("matches")
+      ExAws.S3.list_objects_v2(path)
       |> ExAws.request()
 
     if next_continuation_token do
-      list_matches(contents, next_continuation_token)
+      list_files(path, contents, next_continuation_token)
       # |> Enum.map(fn %{key: key} -> key end)
     else
       contents
@@ -22,18 +26,18 @@ defmodule Storage.MatchStorage.S3MatchStorage do
     end
   end
 
-  @spec list_matches(list(String.t()), String.t()) :: list(String.t())
+  @spec list_files(String.t(), list(String.t()), String.t()) :: list(String.t())
-  defp list_matches(acc, continuation_token) do
+  defp list_files(path, acc, continuation_token) do
     resp =
       {:ok,
        %{:body => %{:contents => contents, next_continuation_token: next_continuation_token}}} =
-      ExAws.S3.list_objects_v2("matches", continuation_token: continuation_token)
+      ExAws.S3.list_objects_v2(path, continuation_token: continuation_token)
       |> ExAws.request()
 
     if next_continuation_token == "" do
       acc ++ contents
     else
-      list_matches(acc ++ contents, next_continuation_token)
+      list_files(path, acc ++ contents, next_continuation_token)
     end
   end