Feat: Implement exponential backoff for YouTube API calls to handle quota errors.

main.py

@@ -45,6 +45,9 @@ def get_authenticated_service():
         API_SERVICE_NAME, API_VERSION, credentials=credentials)
 
 def get_live_chat_id(youtube, video_id):
+    retries = 0
+    max_retries = 5
+    while retries < max_retries:
         try:
             response = youtube.videos().list(
                 part='liveStreamingDetails',
@@ -57,10 +60,20 @@ def get_live_chat_id(youtube, video_id):
                     return video['liveStreamingDetails']['activeLiveChatId']
             return None
         except googleapiclient.errors.HttpError as e:
+            if e.resp.status == 403 and "quotaExceeded" in str(e.content):
+                console.print(f"[red]Quota exceeded. Retrying in {2**retries} seconds...[/red]")
+                time.sleep(2**retries)
+                retries += 1
+            else:
                 console.print(f"[red]An HTTP error {e.resp.status} occurred: {e.content}[/red]")
                 return None
+    console.print(f"[red]Failed to get live chat ID after {max_retries} retries due to quota issues.[/red]")
+    return None
 
 def fetch_live_chat_messages(youtube, live_chat_id, page_token=None):
+    retries = 0
+    max_retries = 5
+    while retries < max_retries:
         try:
             request = youtube.liveChatMessages().list(
                 liveChatId=live_chat_id,
@@ -70,8 +83,15 @@ def fetch_live_chat_messages(youtube, live_chat_id, page_token=None):
             response = request.execute()
             return response
         except googleapiclient.errors.HttpError as e:
+            if e.resp.status == 403 and "quotaExceeded" in str(e.content):
+                console.print(f"[red]Quota exceeded. Retrying in {2**retries} seconds...[/red]")
+                time.sleep(2**retries)
+                retries += 1
+            else:
                 console.print(f"[red]An HTTP error {e.resp.status} occurred: {e.content}[/red]")
                 return None
+    console.print(f"[red]Failed to fetch live chat messages after {max_retries} retries due to quota issues.[/red]")
+    return None
 
 def main():
     youtube = get_authenticated_service()