From 7c64ea5c08cea762dca93e1161007cbeb9720149 Mon Sep 17 00:00:00 2001
From: Huoran Li <huoranli@microsoft.com>
Date: Wed, 14 Sep 2022 14:14:20 +0800
Subject: [PATCH] Fix `_update_dealt_order_amount` bug. (#1291)

* Fix bug

* A weird Mypy issue
---
 qlib/backtest/executor.py | 20 ++++++++++----------
 qlib/backtest/utils.py    |  4 ++--
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/qlib/backtest/executor.py b/qlib/backtest/executor.py
index 664f33a3cd..afed973ba2 100644
--- a/qlib/backtest/executor.py
+++ b/qlib/backtest/executor.py
@@ -587,20 +587,18 @@ def _get_order_iterator(self, trade_decision: BaseTradeDecision) -> List[Order]:
             raise NotImplementedError(f"This type of input is not supported")
         return order_it
 
-    def _update_dealt_order_amount(self, order: Order) -> None:
-        """update date and dealt order amount in the day."""
-
-        now_deal_day = self.trade_calendar.get_step_time()[0].floor(freq="D")
-        if self.deal_day is None or now_deal_day > self.deal_day:
-            self.dealt_order_amount = defaultdict(float)
-            self.deal_day = now_deal_day
-        self.dealt_order_amount[order.stock_id] += order.deal_amount
-
     def _collect_data(self, trade_decision: BaseTradeDecision, level: int = 0) -> Tuple[List[object], dict]:
         trade_start_time, _ = self.trade_calendar.get_step_time()
         execute_result: list = []
 
         for order in self._get_order_iterator(trade_decision):
+            # Each time we move into a new date, clear `self.dealt_order_amount` since it only maintains intraday
+            # information.
+            now_deal_day = self.trade_calendar.get_step_time()[0].floor(freq="D")
+            if self.deal_day is None or now_deal_day > self.deal_day:
+                self.dealt_order_amount = defaultdict(float)
+                self.deal_day = now_deal_day
+
             # execute the order.
             # NOTE: The trade_account will be changed in this function
             trade_val, trade_cost, trade_price = self.trade_exchange.deal_order(
@@ -609,7 +607,9 @@ def _collect_data(self, trade_decision: BaseTradeDecision, level: int = 0) -> Tu
                 dealt_order_amount=self.dealt_order_amount,
             )
             execute_result.append((order, trade_val, trade_cost, trade_price))
-            self._update_dealt_order_amount(order)
+
+            self.dealt_order_amount[order.stock_id] += order.deal_amount
+
             if self.verbose:
                 print(
                     "[I {:%Y-%m-%d %H:%M:%S}]: {} {}, price {:.2f}, amount {}, deal_amount {}, factor {}, "
diff --git a/qlib/backtest/utils.py b/qlib/backtest/utils.py
index f815d10554..595b2acccd 100644
--- a/qlib/backtest/utils.py
+++ b/qlib/backtest/utils.py
@@ -183,8 +183,8 @@ def get_range_idx(self, start_time: pd.Timestamp, end_time: pd.Timestamp) -> Tup
         Tuple[int, int]:
             the index of the range.  **the left and right are closed**
         """
-        left = np.searchsorted(self._calendar, start_time, side="right") - 1
-        right = np.searchsorted(self._calendar, end_time, side="right") - 1
+        left = int(np.searchsorted(self._calendar, start_time, side="right") - 1)
+        right = int(np.searchsorted(self._calendar, end_time, side="right") - 1)
         left -= self.start_index
         right -= self.start_index