From 98502916de1e8a5f6a5d1d176470f3aba27e6518 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EC=9C=A4=EC=A0=95=EB=AF=BC?= <baekryang@bnovalab.com>
Date: Tue, 14 Apr 2026 22:17:51 +0900
Subject: [PATCH] Remove Realtime Database metrics for game list cache.
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경기 일정 캐시의 적중률(Hit/Miss)을 RTDB에 기록하던 로직을 제거
---
 src/services/gameListService.ts | 27 +--------------------------
 1 file changed, 1 insertion(+), 26 deletions(-)

diff --git a/src/services/gameListService.ts b/src/services/gameListService.ts
index b81b1da..9f65782 100644
--- a/src/services/gameListService.ts
+++ b/src/services/gameListService.ts
@@ -1,5 +1,3 @@
-import { ServerValue } from "firebase-admin/database";
-import { rtdb } from "../firebase.js";
 import {
   fetchGameList,
   LEAGUE_CODES,
@@ -27,25 +25,6 @@ function memGet(key: string): GameListResult | null {
   return e.data;
 }
 
-function todayYmd(): string {
-  const n = new Date();
-  return `${n.getFullYear()}${String(n.getMonth() + 1).padStart(2, "0")}${String(n.getDate()).padStart(2, "0")}`;
-}
-
-/**
- * 메모리 캐시 hit/miss 카운터를 RTDB에 기록한다.
- *
- * 경로: `/metrics/gameListCache/{YYYYMMDD}/{hit|miss}` — 일자별 버킷.
- * 요청 지연을 막기 위해 await 하지 않고 fire-and-forget으로 처리하고,
- * 오류는 삼킨다(메트릭 실패가 서비스 실패로 이어지면 안 됨).
- */
-function recordCacheMetric(kind: "hit" | "miss"): void {
-  rtdb
-    .ref(`metrics/gameListCache/${todayYmd()}/${kind}`)
-    .set(ServerValue.increment(1))
-    .catch(() => undefined);
-}
-
 function memSet(key: string, data: GameListResult): void {
   if (memCache.size >= MEM_MAX) {
     const oldest = memCache.keys().next().value;
@@ -70,11 +49,7 @@ export async function getGameList(
   const key = `${dateStr}|${resolvedSeries ?? ""}|${resolvedLeague ?? ""}`;
 
   const hit = memGet(key);
-  if (hit) {
-    recordCacheMetric("hit");
-    return hit;
-  }
-  recordCacheMetric("miss");
+  if (hit) return hit;
 
   const result = await fetchGameList({
     date,