From 4bee1ab6355c7c7796fa191bf5542edef18f778d Mon Sep 17 00:00:00 2001
From: sharath <29162020+tnfssc@users.noreply.github.com>
Date: Thu, 26 Jun 2025 19:49:47 +0000
Subject: [PATCH] feat(billing): implement fixed cutoff date for monthly usage
 calculations to ignore token counts before June 27, 2025

---
 backend/services/billing.py | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/backend/services/billing.py b/backend/services/billing.py
index 4593bb30..1fd10908 100644
--- a/backend/services/billing.py
+++ b/backend/services/billing.py
@@ -229,6 +229,13 @@ async def calculate_monthly_usage(client, user_id: str) -> float:
     now = datetime.now(timezone.utc)
     start_of_month = datetime(now.year, now.month, 1, tzinfo=timezone.utc)
     
+    # Use fixed cutoff date: June 27, 2025 midnight UTC
+    # Ignore all token counts before this date
+    cutoff_date = datetime(2025, 6, 27, 0, 0, 0, tzinfo=timezone.utc)
+    
+    # Use the later of the two dates (start of month or cutoff date)
+    start_of_month = max(start_of_month, cutoff_date)
+    
     # First get all threads for this user
     threads_result = await client.table('threads') \
         .select('thread_id') \
@@ -254,7 +261,7 @@ async def calculate_monthly_usage(client, user_id: str) -> float:
 
     if not token_messages.data:
         return 0.0
-    
+
     # Calculate total cost per message (to handle different models correctly)
     total_cost = 0.0