username in leaderboard

plugins/main.go

@@ -45,6 +45,21 @@ func InitModule(
 		return err
 	}
 
+  err := nk.LeaderboardCreate(
+    ctx,
+    "tictactoe",  // id
+    true,                     // authoritative
+    "desc",                   // sortOrder
+    "incr",                   // operator
+    "",                       // resetSchedule
+    map[string]interface{}{}, // metadata
+  )
+
+  if err != nil && err.Error() != "Leaderboard ID already exists" {
+    return err
+  }
+
+  logger.Info("Leaderboard tictactoe ready")
 	logger.Info("Go module loaded successfully!")
 	return nil
 }

plugins/match.go

@@ -244,6 +244,42 @@ func (m *TicTacToeMatch) MatchLoop(
 			s.Turn = 1 - s.Turn
 			logger.Info("Turn advanced to %d", s.Turn)
 		}
+    if s.GameOver {
+      if s.Winner != "" && s.Winner != "draw" && s.Winner != "forfeit" {
+        // winner = "X" or "O"
+        winningIndex := 0
+        if s.Winner == "O" {
+          winningIndex = 1
+        }
+
+        winnerUserId := s.Players[winningIndex]
+        account, acc_err := nk.AccountGetId(ctx, winnerUserId)
+        winnerUsername := ""
+        if acc_err != nil {
+            logger.Error("Failed to fetch username for winner %s: %v", winnerUserId, acc_err)
+        } else {
+            winnerUsername = account.GetUser().GetUsername()
+        }
+
+        logger.Info("Winner username=%s userId=%s", winnerUsername, winnerUserId)
+        // Write +1 win
+        _, err := nk.LeaderboardRecordWrite(
+          ctx,
+          "tictactoe",                         // leaderboard ID
+          winnerUserId,                        // owner ID
+          winnerUsername,                      // username
+          int64(1),                            // score
+          int64(0),                            // subscore
+          map[string]interface{}{"result": "win"},
+          nil,                                 // overrideOperator
+        )
+        if err != nil {
+          logger.Error("Failed to write leaderboard win: %v", err)
+        } else {
+          logger.Info("Leaderboard updated for: %s", winnerUserId)
+        }
+      }
+    }
 	}
 
 	// If anything changed (or periodically if you want), broadcast updated state to everyone