优化彩金池安全线触发方式

server/app/dice/logic/lottery_pool_config/DiceLotteryPoolConfigLogic.php

@@ -31,7 +31,7 @@ class DiceLotteryPoolConfigLogic extends BaseLogic
     }
 
     /**
-     * 获取当前彩金池：从 Redis 读取实例，profit_amount 每次从 DB 实时读取以保证与抽奖累加一致
+     * 获取当前彩金池：从 Redis 读取实例，profit_amount 每次从 DB 实时读取（表示玩家在该池子的累计盈利）
      *
      * @return array{id:int,name:string,safety_line:int,t1_weight:int,t2_weight:int,t3_weight:int,t4_weight:int,t5_weight:int,profit_amount:float}
      */
@@ -109,4 +109,16 @@ class DiceLotteryPoolConfigLogic extends BaseLogic
             : (float) ($pool['profit_amount'] ?? 0);
         Cache::set(self::REDIS_KEY_CURRENT_POOL, json_encode($pool), self::EXPIRE);
     }
+
+    /**
+     * 重置当前彩金池的玩家累计盈利：将 profit_amount 置为 0，并刷新 Redis 缓存
+     */
+    public function resetProfitAmount(): void
+    {
+        $pool = $this->getCurrentPool();
+        $id = (int) $pool['id'];
+        DiceLotteryPoolConfig::where('id', $id)->update(['profit_amount' => 0]);
+        $pool['profit_amount'] = 0.0;
+        Cache::set(self::REDIS_KEY_CURRENT_POOL, json_encode($pool), self::EXPIRE);
+    }
 }