feat(billing): implement real BQ data in get_summary

ml/billing_agent.py

@@ -16,30 +16,41 @@ class BillingAgent:
 
     def get_summary(self):
         """
-        Retrieves the billing summary for the last 30 days.
+        Retrieves the daily billing summary per project and service for the last 30 days.
         """
         query = f"""
             SELECT
-                service.description as service,
+                DATE(usage_start_time) AS usage_date,
-                SUM(cost) + SUM(IFNULL((SELECT SUM(c.amount) FROM UNNEST(credits) c), 0)) as total_cost
+                project.id AS project_id,
-            FROM `{self.billing_table}`
+                service.description AS service,
-            WHERE _PARTITIONTIME >= TIMESTAMP_SUB(CURRENT_TIMESTAMP(), INTERVAL 30 DAY)
+                SUM(cost) AS daily_cost
-            GROUP BY 1
+            FROM
-            ORDER BY total_cost DESC
+              `{self.billing_table}`
-            LIMIT 10
+            WHERE
+              _PARTITIONTIME >= TIMESTAMP_SUB(CURRENT_TIMESTAMP(), INTERVAL 30 DAY)
+            GROUP BY
+              usage_date, project_id, service
+            ORDER BY
+              usage_date DESC, daily_cost DESC
+            LIMIT 100
         """
         query_job = self.bq_client.query(query)
         results = query_job.result()
         
         summary = []
         for row in results:
-            summary.append({"service": row.service, "total_cost": row.total_cost})
+            summary.append({
+                "usage_date": str(row.usage_date),
+                "project_id": row.project_id,
+                "service": row.service,
+                "daily_cost": row.daily_cost
+            })
             
         if not summary:
             return {
                 "onboarding_status": {
                     "state": "awaiting_data",
-                    "message": "Første fakturaeksport fra BigQuery kan ta 24-48 timer. Data er på vei."
+                    "message": "Fakturaeksport er aktiv, men inneholder ingen data for de siste 30 dagene ennå."
                 }
             }