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

main.py

@@ -45,33 +45,53 @@ def get_authenticated_service():
         API_SERVICE_NAME, API_VERSION, credentials=credentials)
 
 def get_live_chat_id(youtube, video_id):
-    try:
-        response = youtube.videos().list(
-            part='liveStreamingDetails',
-            id=video_id
-        ).execute()
+    retries = 0
+    max_retries = 5
+    while retries < max_retries:
+        try:
+            response = youtube.videos().list(
+                part='liveStreamingDetails',
+                id=video_id
+            ).execute()
 
-        if 'items' in response and response['items']:
-            video = response['items'][0]
-            if 'liveStreamingDetails' in video and 'activeLiveChatId' in video['liveStreamingDetails']:
-                return video['liveStreamingDetails']['activeLiveChatId']
-        return None
-    except googleapiclient.errors.HttpError as e:
-        console.print(f"[red]An HTTP error {e.resp.status} occurred: {e.content}[/red]")
-        return None
+            if 'items' in response and response['items']:
+                video = response['items'][0]
+                if 'liveStreamingDetails' in video and 'activeLiveChatId' in video['liveStreamingDetails']:
+                    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):
-    try:
-        request = youtube.liveChatMessages().list(
-            liveChatId=live_chat_id,
-            part='snippet,authorDetails',
-            pageToken=page_token
-        )
-        response = request.execute()
-        return response
-    except googleapiclient.errors.HttpError as e:
-        console.print(f"[red]An HTTP error {e.resp.status} occurred: {e.content}[/red]")
-        return None
+    retries = 0
+    max_retries = 5
+    while retries < max_retries:
+        try:
+            request = youtube.liveChatMessages().list(
+                liveChatId=live_chat_id,
+                part='snippet,authorDetails',
+                pageToken=page_token
+            )
+            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()