优化打赏统计

router_wallet.py

@@ -646,6 +646,39 @@ async def get_task_stats(account: str, db: Session = Depends(get_db)):
         }
     }
 
+@router.get("/api/wallet/{account}/tip-stats")
+async def get_tip_stats(account: str, db: Session = Depends(get_db)):
+    """📊 获取用户打赏统计"""
+    from sqlalchemy import func as sql_func
+    
+    stats = db.query(
+        Transaction.tx_type,
+        sql_func.count(Transaction.tx_id).label('count'),
+        sql_func.coalesce(sql_func.sum(Transaction.amount), 0).label('total')
+    ).filter(
+        Transaction.account == account,
+        Transaction.tx_type.in_(["TIP_OUT", "TIP_IN"])
+    ).group_by(Transaction.tx_type).all()
+    
+    stats_map = {s.tx_type: {'count': s.count, 'total': int(s.total)} for s in stats}
+    
+    total_tip_in = stats_map.get('TIP_IN', {}).get('total', 0) or 0
+    tip_in_count = stats_map.get('TIP_IN', {}).get('count', 0) or 0
+    
+    total_tip_out = abs(stats_map.get('TIP_OUT', {}).get('total', 0) or 0)
+    tip_out_count = stats_map.get('TIP_OUT', {}).get('count', 0) or 0
+    
+    return {
+        "status": "success",
+        "data": {
+            "total_tip_in": total_tip_in,
+            "tip_in_count": tip_in_count,
+            "total_tip_out": total_tip_out,
+            "tip_out_count": tip_out_count,
+            "net_tips": total_tip_in - total_tip_out
+        }
+    }
+
 # ==========================================
 # 🔄 P7后悔模式：退款API
 # ==========================================