src/main/kotlin/kr/co/vividnext/sodalive/v2/content/recommendation/application/AudioRecommendationQueryService.kt

@@ -2,6 +2,7 @@ package kr.co.vividnext.sodalive.v2.content.recommendation.application
 
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.contentpreference.MemberContentPreferenceService
+import kr.co.vividnext.sodalive.v2.content.recommendation.domain.AudioCard
 import kr.co.vividnext.sodalive.v2.content.recommendation.domain.AudioRecommendationVisibility
 import kr.co.vividnext.sodalive.v2.content.recommendation.domain.AudioRecommendations
 import kr.co.vividnext.sodalive.v2.content.recommendation.port.out.AudioRecommendationQueryPort
@@ -29,7 +30,7 @@ class AudioRecommendationQueryService(
         val visibility = if (canViewAdultContent) AudioRecommendationVisibility.ALL else AudioRecommendationVisibility.SAFE
         val memberId = member?.id
         val newAndHotSectionType = newAndHotSectionType(visibility)
-        val newAndHotSnapshots = snapshotPort.findLatestSnapshots(newAndHotSectionType, limit = NEW_AND_HOT_AUDIO_LIMIT)
+        val newAndHotSnapshots = snapshotPort.findLatestSnapshots(newAndHotSectionType, limit = NEW_AND_HOT_HOME_LIMIT)
         val mostCommentedSnapshots = snapshotPort.findLatestSnapshots(
             mostCommentedSectionType(visibility),
             limit = MOST_COMMENTED_AUDIO_LIMIT
@@ -38,7 +39,12 @@ class AudioRecommendationQueryService(
             recommendedAudioSectionType(visibility),
             limit = RECOMMENDED_AUDIO_LIMIT
         )
-        val refreshedNewAndHotSnapshots = refreshMissingNewAndHotSnapshots(newAndHotSectionType, newAndHotSnapshots)
+        val refreshedNewAndHotSnapshots = refreshMissingNewAndHotSnapshots(
+            newAndHotSectionType,
+            newAndHotSnapshots,
+            offset = 0,
+            limit = NEW_AND_HOT_HOME_LIMIT
+        )
 
         return AudioRecommendations(
             banners = queryPort.findBanners(BANNER_LIMIT, memberId, canViewAdultContent),
@@ -66,6 +72,22 @@ class AudioRecommendationQueryService(
         )
     }
 
+    fun findNewAndHotAudios(member: Member, offset: Long, limit: Int): List<AudioCard> {
+        val now = LocalDateTime.now()
+        val canViewAdultContent = canViewAdultContent(member)
+        val visibility = if (canViewAdultContent) AudioRecommendationVisibility.ALL else AudioRecommendationVisibility.SAFE
+        val sectionType = newAndHotSectionType(visibility)
+        val snapshots = snapshotPort.findLatestSnapshots(sectionType, offset, limit)
+        val refreshedSnapshots = refreshMissingNewAndHotSnapshots(sectionType, snapshots, offset, limit)
+
+        return queryPort.findAudioCardsByIds(
+            refreshedSnapshots.map { it.targetId },
+            member.id,
+            canViewAdultContent,
+            now
+        )
+    }
+
     fun resolveVisibility(member: Member?): AudioRecommendationVisibility {
         return if (canViewAdultContent(member)) AudioRecommendationVisibility.ALL else AudioRecommendationVisibility.SAFE
     }
@@ -93,7 +115,9 @@ class AudioRecommendationQueryService(
 
     private fun refreshMissingNewAndHotSnapshots(
         sectionType: RecommendedSectionType,
-        snapshots: List<RecommendationSnapshotRecord>
+        snapshots: List<RecommendationSnapshotRecord>,
+        offset: Long,
+        limit: Int
     ): List<RecommendationSnapshotRecord> {
         if (snapshots.isNotEmpty()) return snapshots
         val today = LocalDate.now(KST_ZONE)
@@ -107,7 +131,7 @@ class AudioRecommendationQueryService(
             marker.delete()
             throw ex
         }
-        return snapshotPort.findLatestSnapshots(sectionType, limit = NEW_AND_HOT_AUDIO_LIMIT)
+        return snapshotPort.findLatestSnapshots(sectionType, offset, limit)
     }
 
     private fun newAndHotLazyRefreshMarkerKey(date: LocalDate): String {
@@ -125,7 +149,7 @@ class AudioRecommendationQueryService(
         const val LATEST_AUDIO_LIMIT = 12
         const val FREE_AUDIO_LIMIT = 10
         const val POINT_AUDIO_LIMIT = 10
-        const val NEW_AND_HOT_AUDIO_LIMIT = 12
+        const val NEW_AND_HOT_HOME_LIMIT = 12
         const val MOST_COMMENTED_AUDIO_LIMIT = 5
         const val RECOMMENDED_AUDIO_LIMIT = 10
         private const val LAZY_REFRESH_MARKER_KEY_PREFIX = "audio-recommendation:new-and-hot:lazy-refresh-attempted"

src/test/kotlin/kr/co/vividnext/sodalive/v2/content/recommendation/application/AudioRecommendationQueryServiceTest.kt

@@ -1,6 +1,9 @@
 package kr.co.vividnext.sodalive.v2.content.recommendation.application
 
+import kr.co.vividnext.sodalive.member.Member
+import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.member.contentpreference.MemberContentPreferenceService
+import kr.co.vividnext.sodalive.v2.content.recommendation.domain.AudioCard
 import kr.co.vividnext.sodalive.v2.content.recommendation.domain.AudioRecommendationVisibility
 import kr.co.vividnext.sodalive.v2.content.recommendation.port.out.AudioRecommendationQueryPort
 import kr.co.vividnext.sodalive.v2.recommendation.domain.RecommendedSectionType
@@ -51,7 +54,7 @@ class AudioRecommendationQueryServiceTest {
             .findLatestSnapshots(
                 RecommendedSectionType.NEW_AND_HOT_AUDIO_SAFE,
                 0,
-                AudioRecommendationQueryService.NEW_AND_HOT_AUDIO_LIMIT
+                AudioRecommendationQueryService.NEW_AND_HOT_HOME_LIMIT
             )
         Mockito.doReturn(emptyList<RecommendationSnapshotRecord>())
             .`when`(snapshotPort)
@@ -100,7 +103,7 @@ class AudioRecommendationQueryServiceTest {
             .findLatestSnapshots(
                 RecommendedSectionType.NEW_AND_HOT_AUDIO_SAFE,
                 0,
-                AudioRecommendationQueryService.NEW_AND_HOT_AUDIO_LIMIT
+                AudioRecommendationQueryService.NEW_AND_HOT_HOME_LIMIT
             )
         Mockito.doReturn(emptyList<RecommendationSnapshotRecord>())
             .`when`(snapshotPort)
@@ -127,19 +130,14 @@ class AudioRecommendationQueryServiceTest {
     @Test
     @DisplayName("인증 회원 성인 정책은 조회용 저장 preference를 사용한다")
     fun shouldUseStoredPreferenceForMemberAdultVisibility() {
-        val member = kr.co.vividnext.sodalive.member.Member(
-            email = "adult@test.com",
-            password = "password",
-            nickname = "adult",
-            role = kr.co.vividnext.sodalive.member.MemberRole.USER
-        )
+        val member = member(id = 10L)
         Mockito.doReturn(true).`when`(preferenceService).canViewAdultContent(member)
         Mockito.doReturn(listOf(snapshot(RecommendedSectionType.NEW_AND_HOT_AUDIO_ALL, 10L)))
             .`when`(snapshotPort)
             .findLatestSnapshots(
                 RecommendedSectionType.NEW_AND_HOT_AUDIO_ALL,
                 0,
-                AudioRecommendationQueryService.NEW_AND_HOT_AUDIO_LIMIT
+                AudioRecommendationQueryService.NEW_AND_HOT_HOME_LIMIT
             )
 
         service.getRecommendations(member)
@@ -149,10 +147,52 @@ class AudioRecommendationQueryServiceTest {
         Mockito.verify(snapshotPort).findLatestSnapshots(
             RecommendedSectionType.NEW_AND_HOT_AUDIO_ALL,
             0,
-            AudioRecommendationQueryService.NEW_AND_HOT_AUDIO_LIMIT
+            AudioRecommendationQueryService.NEW_AND_HOT_HOME_LIMIT
         )
     }
 
+    @Test
+    @DisplayName("추천 탭 첫 화면은 New & Hot 스냅샷을 12개만 조회한다")
+    fun shouldKeepNewAndHotHomeLimitAtTwelve() {
+        val member = member(id = 10L)
+        Mockito.doReturn(true).`when`(preferenceService).canViewAdultContent(member)
+        Mockito.doReturn(listOf(snapshot(RecommendedSectionType.NEW_AND_HOT_AUDIO_ALL, 10L))).`when`(snapshotPort)
+            .findLatestSnapshots(
+                RecommendedSectionType.NEW_AND_HOT_AUDIO_ALL,
+                0,
+                AudioRecommendationQueryService.NEW_AND_HOT_HOME_LIMIT
+            )
+
+        service.getRecommendations(member)
+
+        Mockito.verify(snapshotPort).findLatestSnapshots(
+            RecommendedSectionType.NEW_AND_HOT_AUDIO_ALL,
+            0,
+            AudioRecommendationQueryService.NEW_AND_HOT_HOME_LIMIT
+        )
+    }
+
+    @Test
+    @DisplayName("New & Hot 전체보기는 스냅샷 offset과 limit으로 오디오 카드를 조회한다")
+    fun shouldFindNewAndHotAudiosWithOffsetAndLimit() {
+        val member = member(id = 10L)
+        val snapshots = listOf(
+            snapshot(RecommendedSectionType.NEW_AND_HOT_AUDIO_ALL, 3L),
+            snapshot(RecommendedSectionType.NEW_AND_HOT_AUDIO_ALL, 4L),
+            snapshot(RecommendedSectionType.NEW_AND_HOT_AUDIO_ALL, 5L)
+        )
+        Mockito.doReturn(true).`when`(preferenceService).canViewAdultContent(member)
+        Mockito.doReturn(snapshots).`when`(snapshotPort)
+            .findLatestSnapshots(RecommendedSectionType.NEW_AND_HOT_AUDIO_ALL, 20L, 21)
+        Mockito.doReturn(listOf(audioCard(3L), audioCard(4L), audioCard(5L))).`when`(queryPort)
+            .findAudioCardsByIds(eqValue(listOf(3L, 4L, 5L)), eqValue(member.id), eqValue(true), anyLocalDateTime())
+
+        val result = service.findNewAndHotAudios(member, offset = 20L, limit = 21)
+
+        assertEquals(listOf(3L, 4L, 5L), result.map { it.audioContentId })
+        Mockito.verify(snapshotPort).findLatestSnapshots(RecommendedSectionType.NEW_AND_HOT_AUDIO_ALL, 20L, 21)
+    }
+
     @Test
     @DisplayName("visibility와 섹션 조합은 신규 RecommendedSectionType으로 매핑된다")
     fun shouldMapVisibilityToAudioSectionTypes() {
@@ -186,6 +226,32 @@ class AudioRecommendationQueryServiceTest {
         return Mockito.any(LocalDateTime::class.java) ?: LocalDateTime.now()
     }
 
+    private fun member(id: Long): Member {
+        return Member(
+            email = "viewer$id@test.com",
+            password = "password",
+            nickname = "viewer$id",
+            role = MemberRole.USER
+        ).apply {
+            this.id = id
+        }
+    }
+
+    private fun audioCard(id: Long): AudioCard {
+        return AudioCard(
+            audioContentId = id,
+            title = "audio$id",
+            duration = "00:01",
+            imageUrl = "https://cdn.test/audio$id.png",
+            price = id.toInt(),
+            isAdult = false,
+            isPointAvailable = true,
+            isFirstContent = true,
+            isOriginalSeries = false,
+            creatorNickname = "creator$id"
+        )
+    }
+
     private fun snapshot(sectionType: RecommendedSectionType, targetId: Long): RecommendationSnapshotRecord {
         return RecommendationSnapshotRecord(
             sectionType = sectionType,