From 8b5c872b45851d5398400d02848bc0b8f451b773 Mon Sep 17 00:00:00 2001
From: Klaus <klaus@vividnext.co.kr>
Date: Fri, 26 Jun 2026 02:48:02 +0900
Subject: [PATCH] =?UTF-8?q?feat(home-following):=20=EC=B5=9C=EA=B7=BC=20?=
 =?UTF-8?q?=EC=86=8C=EC=8B=9D=20source=20key=EB=A5=BC=20=EC=B6=94=EA=B0=80?=
 =?UTF-8?q?=ED=95=9C=EB=8B=A4?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../domain/HomeFollowingNewsSourceKey.kt      | 17 ++++++++++
 .../domain/HomeFollowingNewsSourceKeyTest.kt  | 33 +++++++++++++++++++
 2 files changed, 50 insertions(+)
 create mode 100644 src/main/kotlin/kr/co/vividnext/sodalive/v2/home/following/domain/HomeFollowingNewsSourceKey.kt
 create mode 100644 src/test/kotlin/kr/co/vividnext/sodalive/v2/home/following/domain/HomeFollowingNewsSourceKeyTest.kt

diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/v2/home/following/domain/HomeFollowingNewsSourceKey.kt b/src/main/kotlin/kr/co/vividnext/sodalive/v2/home/following/domain/HomeFollowingNewsSourceKey.kt
new file mode 100644
index 00000000..7aafec20
--- /dev/null
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/v2/home/following/domain/HomeFollowingNewsSourceKey.kt
@@ -0,0 +1,17 @@
+package kr.co.vividnext.sodalive.v2.home.following.domain
+
+import java.time.LocalDateTime
+
+object HomeFollowingNewsSourceKey {
+    fun creatorRanking(creatorId: Long, aggregationStartAtUtc: LocalDateTime): String {
+        return "${FollowingNewsType.CREATOR_RANKING.name}:$creatorId:$aggregationStartAtUtc"
+    }
+
+    fun audioContent(contentId: Long): String {
+        return "${FollowingNewsType.AUDIO_CONTENT.name}:$contentId"
+    }
+
+    fun communityPost(postId: Long): String {
+        return "${FollowingNewsType.COMMUNITY_POST.name}:$postId"
+    }
+}
diff --git a/src/test/kotlin/kr/co/vividnext/sodalive/v2/home/following/domain/HomeFollowingNewsSourceKeyTest.kt b/src/test/kotlin/kr/co/vividnext/sodalive/v2/home/following/domain/HomeFollowingNewsSourceKeyTest.kt
new file mode 100644
index 00000000..af63ce48
--- /dev/null
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/v2/home/following/domain/HomeFollowingNewsSourceKeyTest.kt
@@ -0,0 +1,33 @@
+package kr.co.vividnext.sodalive.v2.home.following.domain
+
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Test
+import java.time.LocalDateTime
+
+class HomeFollowingNewsSourceKeyTest {
+    @Test
+    @DisplayName("크리에이터 랭킹 source key는 타입, 크리에이터, 집계 시작 시각으로 생성한다")
+    fun shouldCreateCreatorRankingSourceKey() {
+        val aggregationStartAtUtc = LocalDateTime.of(2026, 5, 31, 15, 0)
+
+        val sourceKey = HomeFollowingNewsSourceKey.creatorRanking(
+            creatorId = 10L,
+            aggregationStartAtUtc = aggregationStartAtUtc
+        )
+
+        assertEquals("CREATOR_RANKING:10:2026-05-31T15:00", sourceKey)
+    }
+
+    @Test
+    @DisplayName("오디오 콘텐츠 source key는 타입과 콘텐츠 id로 생성한다")
+    fun shouldCreateAudioContentSourceKey() {
+        assertEquals("AUDIO_CONTENT:300", HomeFollowingNewsSourceKey.audioContent(contentId = 300L))
+    }
+
+    @Test
+    @DisplayName("커뮤니티 게시글 source key는 타입과 게시글 id로 생성한다")
+    fun shouldCreateCommunityPostSourceKey() {
+        assertEquals("COMMUNITY_POST:400", HomeFollowingNewsSourceKey.communityPost(postId = 400L))
+    }
+}