refactor(quickadapter): disambiguate and centralize final exit stage constants

Rename the _FINAL_EXIT_STAGE tuple to _FINAL_EXIT_STAGE_PARAMS and add the
class-level constant _FINAL_EXIT_STAGE_INDEX (max(partial_exit_stages) + 1),
referenced from the configuration logging, the get_trade_exit_stage clamp,
and the plot config. This removes the triplicated stage-index expression and
distinguishes the final stage parameters from its index. Qualify the plot
config partial_exit_stages and stage-index accesses with QuickAdapterV3 to
match the surrounding constant access.

diff --git a/quickadapter/user_data/strategies/QuickAdapterV3.py b/quickadapter/user_data/strategies/QuickAdapterV3.py
index 1eb077195ad4a4275b7f10ba336bccd26827f7dc..9603cf76cde58f0c27b82d23d284c00bc104a4f0 100644 (file)
--- a/quickadapter/user_data/strategies/QuickAdapterV3.py
+++ b/quickadapter/user_data/strategies/QuickAdapterV3.py
@@ -159,7 +159,16 @@ class QuickAdapterV3(IStrategy):
     }
 
     # (natr_multiplier_fraction, stake_percent, color)
-    _FINAL_EXIT_STAGE: Final[tuple[float, float, str]] = (1.0, 1.0, "deepskyblue")
+    _FINAL_EXIT_STAGE_PARAMS: Final[tuple[float, float, str]] = (
+        1.0,
+        1.0,
+        "deepskyblue",
+    )
+
+    # Stage index of the final full exit: one past the last partial stage.
+    _FINAL_EXIT_STAGE_INDEX: Final[int] = (
+        max(partial_exit_stages.keys(), default=-1) + 1
+    )
 
     _TAKE_PROFIT_ORDER_TAG_PREFIX: Final[str] = "take_profit_"
 
@@ -611,9 +620,9 @@ class QuickAdapterV3(IStrategy):
                 f"  stage {stage}: natr_multiplier_fraction={format_number(natr_multiplier_fraction)}, stake_percent={format_number(stake_percent)}, color={color}"
             )
 
-        final_stage = max(QuickAdapterV3.partial_exit_stages.keys(), default=-1) + 1
+        final_stage = QuickAdapterV3._FINAL_EXIT_STAGE_INDEX
         logger.info(
-            f"Final Exit Stage: stage {final_stage}: natr_multiplier_fraction={format_number(QuickAdapterV3._FINAL_EXIT_STAGE[0])}, stake_percent={format_number(QuickAdapterV3._FINAL_EXIT_STAGE[1])}, color={QuickAdapterV3._FINAL_EXIT_STAGE[2]}"
+            f"Final Exit Stage: stage {final_stage}: natr_multiplier_fraction={format_number(QuickAdapterV3._FINAL_EXIT_STAGE_PARAMS[0])}, stake_percent={format_number(QuickAdapterV3._FINAL_EXIT_STAGE_PARAMS[1])}, color={QuickAdapterV3._FINAL_EXIT_STAGE_PARAMS[2]}"
         )
 
         logger.info("Protections:")
@@ -1270,8 +1279,7 @@ class QuickAdapterV3(IStrategy):
                 QuickAdapterV3._TAKE_PROFIT_ORDER_TAG_PREFIX
             )
         )
-        final_stage = max(QuickAdapterV3.partial_exit_stages.keys(), default=-1) + 1
-        return min(n_filled_take_profit_exits, final_stage)
+        return min(n_filled_take_profit_exits, QuickAdapterV3._FINAL_EXIT_STAGE_INDEX)
 
     @staticmethod
     @lru_cache(maxsize=128)
@@ -1410,7 +1418,7 @@ class QuickAdapterV3(IStrategy):
         natr_multiplier_fraction = (
             QuickAdapterV3.partial_exit_stages[exit_stage][0]
             if exit_stage in QuickAdapterV3.partial_exit_stages
-            else QuickAdapterV3._FINAL_EXIT_STAGE[0]
+            else QuickAdapterV3._FINAL_EXIT_STAGE_PARAMS[0]
         )
         take_profit_distance = self.get_take_profit_distance(
             df, trade, natr_multiplier_fraction
@@ -2301,7 +2309,7 @@ class QuickAdapterV3(IStrategy):
 
             trade_exit_stage = QuickAdapterV3.get_trade_exit_stage(trade)
 
-            for take_profit_stage, (_, _, color) in self.partial_exit_stages.items():
+            for take_profit_stage in QuickAdapterV3.partial_exit_stages:
                 if take_profit_stage < trade_exit_stage:
                     continue
 
@@ -2318,7 +2326,7 @@ class QuickAdapterV3(IStrategy):
                     "end": end_date,
                     "y_start": partial_take_profit_price,
                     "y_end": partial_take_profit_price,
-                    "color": color,
+                    "color": QuickAdapterV3.partial_exit_stages[take_profit_stage][2],
                     "line_style": "solid",
                     "width": 1,
                     "label": f"Take Profit {take_profit_stage}",
@@ -2326,7 +2334,7 @@ class QuickAdapterV3(IStrategy):
                 }
                 annotations.append(take_profit_line_annotation)
 
-            final_stage = max(self.partial_exit_stages.keys(), default=-1) + 1
+            final_stage = QuickAdapterV3._FINAL_EXIT_STAGE_INDEX
             final_take_profit_price = self.get_take_profit_price(
                 dataframe, trade, final_stage
             )
@@ -2338,7 +2346,7 @@ class QuickAdapterV3(IStrategy):
                     "end": end_date,
                     "y_start": final_take_profit_price,
                     "y_end": final_take_profit_price,
-                    "color": QuickAdapterV3._FINAL_EXIT_STAGE[2],
+                    "color": QuickAdapterV3._FINAL_EXIT_STAGE_PARAMS[2],
                     "line_style": "solid",
                     "width": 1,
                     "label": f"Take Profit {final_stage}",