From db025ff34efd5633a01479ff5a26ff78e7a6e635 Mon Sep 17 00:00:00 2001
From: space2lim <space2lim@naver.com>
Date: Tue, 22 Apr 2025 23:58:13 +0900
Subject: [PATCH] edit cronJob algorithm (summertime)

---
 config/cronJobs.js | 25 +++++++++++++------------
 feature/utility.js |  6 +++---
 2 files changed, 16 insertions(+), 15 deletions(-)

diff --git a/config/cronJobs.js b/config/cronJobs.js
index 836931e..a487e1a 100644
--- a/config/cronJobs.js
+++ b/config/cronJobs.js
@@ -5,24 +5,25 @@ export function initializeCronJobs(client) {
   const channel = client.channels.cache.get(process.env.CH_FINANCE);
 
   // 미국 주식 시장 개장 시간 (월~금)
-  const openTime = isDaylightSavingTime() ? '30 22 * * 1-5' : '30 23 * * 1-5';
-  const openJob = new CronJob(openTime, async () => {
-    if (channel) {
-      const isDST = isDaylightSavingTime();
-      const dstMessage = isDST
-        ? '(서머타임 적용)'
-        : '(서머타임 미적용)';
+  const openJob = new CronJob('30 22-23 * * 1-5', async (now) => {
+    const isDST = isDaylightSavingTime();
+    const expectedHour = isDST ? 22 : 23;
+  
+    if (now.getHours() === expectedHour) {
+      const dstMessage = isDST ? '(서머타임 적용)' : '(서머타임 미적용)';
       await channel.send(`미국 주식 시장이 열렸습니다. ${dstMessage}`);
     }
   }, null, true, 'Asia/Seoul');
-
-  // 미국 주식 시장 폐장 시간 (월~금) → 한국 시간 화~토 새벽에 실행
-  const closeTime = isDaylightSavingTime() ? '0 5 * * 2-6' : '0 6 * * 2-6';
-  const closeJob = new CronJob(closeTime, async () => {
-    if (channel) {
+  
+  const closeJob = new CronJob('0 5-6 * * 2-6', async (now) => {
+    const isDST = isDaylightSavingTime();
+    const expectedHour = isDST ? 5 : 6;
+  
+    if (now.getHours() === expectedHour) {
       await channel.send('미국 주식 시장이 닫혔습니다.');
     }
   }, null, true, 'Asia/Seoul');
+  
 
   // 작업 시작
   openJob.start();
diff --git a/feature/utility.js b/feature/utility.js
index 5347f9f..9f01ff8 100644
--- a/feature/utility.js
+++ b/feature/utility.js
@@ -26,6 +26,6 @@ export function isDaylightSavingTime() {
   const now = new Date();
   const jan = new Date(now.getFullYear(), 0, 1);
   const jul = new Date(now.getFullYear(), 6, 1);
-  const standardOffset = Math.max(jan.getTimezoneOffset(), jul.getTimezoneOffset());
-  return now.getTimezoneOffset() < standardOffset; // 서머타임 여부 반환
-}
\ No newline at end of file
+  const stdTimezoneOffset = Math.max(jan.getTimezoneOffset(), jul.getTimezoneOffset());
+  return now.getTimezoneOffset() < stdTimezoneOffset;
+}