add - summary total sharings of brokers on dashboard

apps/warehouse/services/transaction_dashboard_service.py

@@ -130,7 +130,19 @@ class TransactionDashboardService:
                 key=lambda x: -x["total_price"]
             )
 
+        # calculate total statistic of every broker
+        share_totals = defaultdict(lambda: {"total_price": 0, "count": 0})
+
+        for product in products_stats:
+            for item in product["item_share_stats"]:
+                name = item["name"]
+                share_totals[name]["total_price"] += item["total_price"]
+                share_totals[name]["count"] += item["count"]
+
+        share_totals = dict(share_totals)
+
         return {
             "transaction_summary": transaction_stats,
             "product_summary": list(products_stats),
+            "brokers_sharing_summary": share_totals
         }