[Enhancement] Allow custom yt-dlp options (#176)

* Added option for yt-dlp config file usage

* renamed yt-dlp config file

* refactored to use a precedence-based approach

* Updated README

test/pinchflat/boot/pre_job_startup_tasks_test.exs

@@ -27,7 +27,7 @@ defmodule Pinchflat.Boot.PreJobStartupTasksTest do
     end
   end
 
-  describe "create_blank_cookie_file" do
+  describe "create_blank_yt_dlp_files" do
     test "creates a blank cookie file" do
       base_dir = Application.get_env(:pinchflat, :extras_directory)
       filepath = Path.join(base_dir, "cookies.txt")
@@ -39,6 +39,18 @@ defmodule Pinchflat.Boot.PreJobStartupTasksTest do
 
       assert File.exists?(filepath)
     end
+
+    test "creates a blank yt-dlp config file" do
+      base_dir = Application.get_env(:pinchflat, :extras_directory)
+      filepath = Path.join([base_dir, "yt-dlp-configs", "base-config.txt"])
+      File.rm(filepath)
+
+      refute File.exists?(filepath)
+
+      PreJobStartupTasks.init(%{})
+
+      assert File.exists?(filepath)
+    end
   end
 
   describe "apply_default_settings" do