move conn.stream to another thread

textual1/app.py

@@ -1,6 +1,7 @@
 import logging
 import os
 import io
+import asyncio
 
 LOG_FILE = 'textual.log'
 LOGGING_LEVEL = logging.DEBUG
@@ -498,18 +499,19 @@ class TextualSubpyPlayer(App):
         audio_data = None
         audio_cache_path = f'.cache/audio/{song.id}.ogg'
 
-        if CACHE:
-            if os.path.exists(audio_cache_path):
-                with open(audio_cache_path, 'rb') as file:
-                    audio_data = io.BytesIO(file.read())
+        if CACHE and os.path.exists(audio_cache_path):
+            with open(audio_cache_path, 'rb') as file:
+                audio_data = io.BytesIO(file.read())
+        else:
+            # Run the blocking stream call in a separate thread
+            r = await asyncio.to_thread(conn.stream, song.id)
+            audio_content = r.content
 
-        if not audio_data:
-            r = conn.stream(song.id)
             if CACHE:
-                with open(audio_cache_path, "wb") as file:
-                    file.write(r.content)
+                # Also run the file writing in a thread
+                await asyncio.to_thread(self._cache_audio, audio_cache_path, audio_content)
 
-            audio_data = io.BytesIO(r.content)
+            audio_data = io.BytesIO(audio_content)
 
         pygame.mixer.music.load(audio_data)
         pygame.mixer.music.play()
@@ -526,6 +528,11 @@ class TextualSubpyPlayer(App):
         # Set callback loop for progress bar
     #     self.progress_timer = self.set_interval(1 / 10, self.update_progress, pause=False)
 
+    def _cache_audio(self, path: str, content: bytes) -> None:
+        """Helper method to write audio to cache."""
+        with open(path, "wb") as file:
+            file.write(content)
+
     def check_done_playing(self) -> None:
         if not pygame.mixer.music.get_busy() and not self.is_paused:
             self.play_history.append(self.currently_playing)