시리즈 목록 조회 쿼리 최적화

src/main/kotlin/kr/co/vividnext/sodalive/api/home/HomeService.kt

@@ -12,7 +12,6 @@ import kr.co.vividnext.sodalive.content.main.GetAudioContentRankingItem
 import kr.co.vividnext.sodalive.content.main.banner.AudioContentBannerService
 import kr.co.vividnext.sodalive.content.series.ContentSeriesService
 import kr.co.vividnext.sodalive.content.series.GetSeriesListResponse
-import kr.co.vividnext.sodalive.content.series.translation.SeriesTranslationRepository
 import kr.co.vividnext.sodalive.content.theme.AudioContentThemeService
 import kr.co.vividnext.sodalive.creator.admin.content.series.SeriesPublishedDaysOfWeek
 import kr.co.vividnext.sodalive.event.GetEventResponse
@@ -50,7 +49,6 @@ class HomeService(
     private val explorerQueryRepository: ExplorerQueryRepository,
 
     private val aiCharacterTranslationRepository: AiCharacterTranslationRepository,
-    private val seriesTranslationRepository: SeriesTranslationRepository,
 
     private val langContext: LangContext,
 
@@ -139,13 +137,12 @@ class HomeService(
         val auditionList = auditionService.getInProgressAuditionList(isAdult = isAdult)
 
         // 요일별 시리즈
-        val dayOfWeekSeriesList = seriesService.getDayOfWeekSeriesList(
+        val translatedDayOfWeekSeriesList = seriesService.getDayOfWeekSeriesList(
             memberId = memberId,
             isAdult = isAdult,
             contentType = contentType,
             dayOfWeek = getDayOfWeekByTimezone(timezone)
         )
-        val translatedDayOfWeekSeriesList = getTranslatedSeriesList(seriesList = dayOfWeekSeriesList)
 
         // 인기 캐릭터 조회
         val translatedPopularCharacters = getTranslatedAiCharacterList(aiCharacterList = characterService.getPopularCharacters())
@@ -265,14 +262,12 @@ class HomeService(
         val memberId = member?.id
         val isAdult = member?.auth != null && isAdultContentVisible
 
-        val dayOfWeekSeriesList = seriesService.getDayOfWeekSeriesList(
+        return seriesService.getDayOfWeekSeriesList(
             memberId = memberId,
             isAdult = isAdult,
             contentType = contentType,
             dayOfWeek = dayOfWeek
         )
-
-        return getTranslatedSeriesList(seriesList = dayOfWeekSeriesList)
     }
 
     fun getContentRankingBySort(
@@ -479,44 +474,6 @@ class HomeService(
         return result.take(targetSize).shuffled()
     }
 
-    /**
-     * 시리즈 리스트의 제목을 현재 언어(locale)에 맞춰 일괄 번역한다.
-     *
-     * 처리 절차:
-     * - 입력된 시리즈들의 seriesId 집합을 만들고, 요청 언어 코드(langContext.lang.code)로
-     *   seriesTranslationRepository에서 번역 데이터를 한 번에 조회한다.
-     * - 각 항목에 대해 번역된 제목이 존재하고 비어있지 않으면 title만 번역 값으로 교체한다.
-     * - 번역이 없거나 공백이면 원본 항목을 그대로 반환한다.
-     *
-     * 성능:
-     * - N건의 항목을 1회의 조회로 해결하기 위해 IN 쿼리를 사용한다.
-     *
-     * @param seriesList 번역 대상 SeriesListItem 목록
-     * @return 제목이 가능한 항목은 번역된 목록(불변 사본), 그 외는 원본 항목 유지
-     */
-    private fun getTranslatedSeriesList(
-        seriesList: List<GetSeriesListResponse.SeriesListItem>
-    ): List<GetSeriesListResponse.SeriesListItem> {
-        val seriesIds = seriesList.map { it.seriesId }
-
-        return if (seriesIds.isNotEmpty()) {
-            val translations = seriesTranslationRepository
-                .findBySeriesIdInAndLocale(seriesIds = seriesIds, locale = langContext.lang.code)
-                .associateBy { it.seriesId }
-
-            seriesList.map { item ->
-                val translatedTitle = translations[item.seriesId]?.renderedPayload?.title
-                if (translatedTitle.isNullOrBlank()) {
-                    item
-                } else {
-                    item.copy(title = translatedTitle)
-                }
-            }
-        } else {
-            seriesList
-        }
-    }
-
     /**
      * AI 캐릭터 리스트의 이름/설명을 현재 언어(locale)에 맞춰 일괄 번역한다.
      *

src/main/kotlin/kr/co/vividnext/sodalive/content/series/ContentSeriesRepository.kt

@@ -31,10 +31,11 @@ interface ContentSeriesQueryRepository {
         isAuth: Boolean,
         contentType: ContentType,
         isOriginal: Boolean,
-        isCompleted: Boolean
+        isCompleted: Boolean,
+        memberId: Long? = null
     ): Int
 
-    fun getSeriesList(
+    fun getSeriesListV2(
         imageHost: String,
         creatorId: Long?,
         isAuth: Boolean,
@@ -43,28 +44,41 @@ interface ContentSeriesQueryRepository {
         isCompleted: Boolean,
         orderByRandom: Boolean,
         offset: Long,
-        limit: Long
-    ): List<Series>
+        limit: Long,
+        locale: String,
+        memberId: Long? = null
+    ): List<GetSeriesListResponse.SeriesListItem>
 
     fun getSeriesByGenreTotalCount(
         genreId: Long,
         isAuth: Boolean,
-        contentType: ContentType
+        contentType: ContentType,
+        memberId: Long? = null
     ): Int
 
-    fun getSeriesByGenreList(
+    fun getSeriesByGenreListV2(
         imageHost: String,
         genreId: Long,
         isAuth: Boolean,
         contentType: ContentType,
         offset: Long,
-        limit: Long
-    ): List<Series>
+        limit: Long,
+        locale: String,
+        memberId: Long? = null
+    ): List<GetSeriesListResponse.SeriesListItem>
 
     fun getSeriesDetail(seriesId: Long, isAuth: Boolean, contentType: ContentType): Series?
     fun getKeywordList(seriesId: Long): List<String>
     fun getSeriesContentMinMaxPrice(seriesId: Long): GetSeriesContentMinMaxPriceResponse
-    fun getRecommendSeriesList(isAuth: Boolean, contentType: ContentType, limit: Long): List<Series>
+    fun getRecommendSeriesListV2(
+        imageHost: String,
+        isAuth: Boolean,
+        contentType: ContentType,
+        limit: Long,
+        locale: String,
+        memberId: Long? = null
+    ): List<GetSeriesListResponse.SeriesListItem>
+
     fun getOriginalAudioDramaList(
         imageHost: String,
         isAdult: Boolean,
@@ -76,27 +90,57 @@ interface ContentSeriesQueryRepository {
 
     fun getOriginalAudioDramaTotalCount(isAdult: Boolean, contentType: ContentType): Int
     fun getGenreList(isAdult: Boolean, memberId: Long, contentType: ContentType): List<GetSeriesGenreListResponse>
-    fun findByCurationId(curationId: Long, memberId: Long, isAdult: Boolean, contentType: ContentType): List<Series>
-    fun getDayOfWeekSeriesList(
+    fun findByCurationIdV2(
+        imageHost: String,
+        curationId: Long,
+        memberId: Long,
+        isAdult: Boolean,
+        contentType: ContentType,
+        locale: String
+    ): List<GetSeriesListResponse.SeriesListItem>
+
+    fun getDayOfWeekSeriesListV2(
+        imageHost: String,
         dayOfWeek: SeriesPublishedDaysOfWeek,
         contentType: ContentType,
         isAdult: Boolean,
         offset: Long,
-        limit: Long
-    ): List<Series>
+        limit: Long,
+        locale: String,
+        memberId: Long? = null
+    ): List<GetSeriesListResponse.SeriesListItem>
 }
 
 class ContentSeriesQueryRepositoryImpl(
     private val queryFactory: JPAQueryFactory
 ) : ContentSeriesQueryRepository {
+    private fun parsePublishedDaysOfWeek(raw: String?): Set<SeriesPublishedDaysOfWeek> {
+        if (raw.isNullOrBlank()) {
+            return emptySet()
+        }
+
+        return raw.split(",")
+            .mapNotNull { value ->
+                val trimmed = value.trim()
+                if (trimmed.isEmpty()) {
+                    null
+                } else {
+                    runCatching { SeriesPublishedDaysOfWeek.valueOf(trimmed) }.getOrNull()
+                }
+            }
+            .toSet()
+    }
+
     override fun getSeriesTotalCount(
         creatorId: Long?,
         isAuth: Boolean,
         contentType: ContentType,
         isOriginal: Boolean,
-        isCompleted: Boolean
+        isCompleted: Boolean,
+        memberId: Long?
     ): Int {
         var where = series.isActive.isTrue
+            .and(audioContent.isActive.isTrue)
 
         if (creatorId != null) {
             where = where.and(series.member.id.eq(creatorId))
@@ -111,7 +155,9 @@ class ContentSeriesQueryRepositoryImpl(
         }
 
         if (!isAuth) {
-            where = where.and(series.isAdult.isFalse)
+            where = where
+                .and(series.isAdult.isFalse)
+                .and(audioContent.isAdult.isFalse)
         } else {
             if (contentType != ContentType.ALL) {
                 where = where.and(
@@ -128,16 +174,31 @@ class ContentSeriesQueryRepositoryImpl(
             }
         }
 
-        return queryFactory
-            .select(series.id)
-            .from(series)
-            .innerJoin(series.member, member)
-            .where(where)
-            .fetch()
-            .size
+        if (memberId != null) {
+            val blockedSubquery = queryFactory
+                .select(blockMember.id)
+                .from(blockMember)
+                .where(
+                    blockMember.member.id.eq(series.member.id),
+                    blockMember.blockedMember.id.eq(memberId),
+                    blockMember.isActive.isTrue
+                )
+            where = where.and(blockedSubquery.exists().not())
+        }
+
+        return (
+            queryFactory
+                .select(series.id.countDistinct())
+                .from(series)
+                .innerJoin(series.member, member)
+                .innerJoin(seriesContent).on(series.id.eq(seriesContent.series.id))
+                .innerJoin(seriesContent.content, audioContent)
+                .where(where)
+                .fetchOne() ?: 0L
+            ).toInt()
     }
 
-    override fun getSeriesList(
+    override fun getSeriesListV2(
         imageHost: String,
         creatorId: Long?,
         isAuth: Boolean,
@@ -146,9 +207,12 @@ class ContentSeriesQueryRepositoryImpl(
         isCompleted: Boolean,
         orderByRandom: Boolean,
         offset: Long,
-        limit: Long
-    ): List<Series> {
+        limit: Long,
+        locale: String,
+        memberId: Long?
+    ): List<GetSeriesListResponse.SeriesListItem> {
         var where = series.isActive.isTrue
+            .and(audioContent.isActive.isTrue)
 
         if (creatorId != null) {
             where = where.and(series.member.id.eq(creatorId))
@@ -162,54 +226,134 @@ class ContentSeriesQueryRepositoryImpl(
         }
 
         if (!isAuth) {
-            where = where.and(series.isAdult.isFalse)
+            where = where
+                .and(series.isAdult.isFalse)
+                .and(audioContent.isAdult.isFalse)
         } else {
             if (contentType != ContentType.ALL) {
                 where = where.and(
                     series.member.isNull.or(
                         series.member.auth.gender.eq(
-                            if (contentType == ContentType.MALE) {
-                                0
-                            } else {
-                                1
-                            }
+                            if (contentType == ContentType.MALE) 0 else 1
                         )
                     )
                 )
             }
         }
 
+        // 차단 필터
+        if (memberId != null) {
+            val blockedSubquery = queryFactory
+                .select(blockMember.id)
+                .from(blockMember)
+                .where(
+                    blockMember.member.id.eq(series.member.id),
+                    blockMember.blockedMember.id.eq(memberId),
+                    blockMember.isActive.isTrue
+                )
+            where = where.and(blockedSubquery.exists().not())
+        }
+
+        val latestReleaseDate = audioContent.releaseDate.max()
+
         val orderBy = if (orderByRandom) {
             listOf(Expressions.numberTemplate(Double::class.java, "function('rand')").asc())
         } else if (creatorId != null) {
             listOf(series.orders.asc(), series.createdAt.asc())
         } else {
-            listOf(audioContent.releaseDate.max().desc(), series.createdAt.asc())
+            listOf(latestReleaseDate.desc(), series.createdAt.asc())
         }
 
-        return queryFactory
-            .selectFrom(series)
+        val now = LocalDateTime.now()
+        val sevenDaysAgo = now.minusDays(7)
+
+        val contentCount = seriesContent.id.countDistinct()
+        val isNewCase = Expressions.numberTemplate(
+            Int::class.java,
+            "case when {0} then 1 else 0 end",
+            audioContent.releaseDate.between(sevenDaysAgo, now)
+        )
+        val isNewFlag = isNewCase.max()
+        val seriesPublishedDay = Expressions.enumPath(SeriesPublishedDaysOfWeek::class.java, "seriesPublishedDay")
+        val publishedDaysConcat = Expressions.stringTemplate(
+            "group_concat(distinct {0} order by {0} separator ',')",
+            seriesPublishedDay
+        )
+
+        val results = queryFactory
+            .select(
+                series.id,
+                series.title,
+                seriesTranslation.renderedPayload,
+                series.coverImage,
+                series.state,
+                member.id,
+                member.nickname,
+                member.profileImage,
+                contentCount,
+                isNewFlag,
+                publishedDaysConcat
+            )
+            .from(series)
             .innerJoin(series.member, member)
             .innerJoin(seriesContent).on(series.id.eq(seriesContent.series.id))
             .innerJoin(seriesContent.content, audioContent)
+            .leftJoin(series.publishedDaysOfWeek, seriesPublishedDay)
+            .leftJoin(seriesTranslation).on(series.id.eq(seriesTranslation.seriesId), seriesTranslation.locale.eq(locale))
             .where(where)
             .groupBy(series.id)
+            .having(contentCount.gt(0))
             .orderBy(*orderBy.toTypedArray())
             .offset(offset)
             .limit(limit)
             .fetch()
+
+        return results.map { row ->
+            val sId = row.get(series.id)!!
+            val originTitle = row.get(series.title)!!
+            val payload = row.get(seriesTranslation.renderedPayload)
+            val translatedTitle = payload?.title
+            val coverImg = row.get(series.coverImage)
+            val state = row.get(series.state)
+            val cId = row.get(member.id)!!
+            val nick = row.get(member.nickname)!!
+            val profImg = row.get(member.profileImage)
+            val nContent = row.get(contentCount) ?: 0L
+            val isN = (row.get(isNewFlag) ?: 0) > 0
+            val rawDays = parsePublishedDaysOfWeek(row.get(publishedDaysConcat))
+
+            GetSeriesListResponse.SeriesListItem(
+                seriesId = sId,
+                title = if (translatedTitle.isNullOrBlank()) originTitle else translatedTitle,
+                coverImage = "$imageHost/$coverImg",
+                publishedDaysOfWeek = "", // Service layer will fill this
+                isComplete = state == SeriesState.COMPLETE,
+                creator = GetSeriesListResponse.SeriesListItemCreator(
+                    creatorId = cId,
+                    nickname = nick,
+                    profileImage = "$imageHost/$profImg"
+                ),
+                numberOfContent = nContent.toInt(),
+                isNew = isN,
+                rawPublishedDaysOfWeek = rawDays
+            )
+        }
     }
 
     override fun getSeriesByGenreTotalCount(
         genreId: Long,
         isAuth: Boolean,
-        contentType: ContentType
+        contentType: ContentType,
+        memberId: Long?
     ): Int {
         var where = series.isActive.isTrue
             .and(series.genre.id.eq(genreId))
+            .and(audioContent.isActive.isTrue)
 
         if (!isAuth) {
-            where = where.and(series.isAdult.isFalse)
+            where = where
+                .and(series.isAdult.isFalse)
+                .and(audioContent.isAdult.isFalse)
         } else {
             if (contentType != ContentType.ALL) {
                 where = where.and(
@@ -226,29 +370,44 @@ class ContentSeriesQueryRepositoryImpl(
             }
         }
 
-        return queryFactory
-            .select(series.id)
-            .from(seriesContent)
-            .innerJoin(seriesContent.series, series)
-            .innerJoin(seriesContent.content, audioContent)
-            .innerJoin(series.member, member)
-            .innerJoin(series.genre, seriesGenre)
-            .where(where)
-            .groupBy(series.id)
-            .fetch()
-            .size
+        if (memberId != null) {
+            val blockedSubquery = queryFactory
+                .select(blockMember.id)
+                .from(blockMember)
+                .where(
+                    blockMember.member.id.eq(series.member.id),
+                    blockMember.blockedMember.id.eq(memberId),
+                    blockMember.isActive.isTrue
+                )
+            where = where.and(blockedSubquery.exists().not())
+        }
+
+        return (
+            queryFactory
+                .select(series.id.countDistinct())
+                .from(seriesContent)
+                .innerJoin(seriesContent.series, series)
+                .innerJoin(seriesContent.content, audioContent)
+                .innerJoin(series.member, member)
+                .innerJoin(series.genre, seriesGenre)
+                .where(where)
+                .fetchOne() ?: 0L
+            ).toInt()
     }
 
-    override fun getSeriesByGenreList(
+    override fun getSeriesByGenreListV2(
         imageHost: String,
         genreId: Long,
         isAuth: Boolean,
         contentType: ContentType,
         offset: Long,
-        limit: Long
-    ): List<Series> {
+        limit: Long,
+        locale: String,
+        memberId: Long?
+    ): List<GetSeriesListResponse.SeriesListItem> {
         var where = series.isActive.isTrue
             .and(series.genre.id.eq(genreId))
+            .and(audioContent.isActive.isTrue)
 
         if (!isAuth) {
             where = where.and(series.isAdult.isFalse)
@@ -257,30 +416,106 @@ class ContentSeriesQueryRepositoryImpl(
                 where = where.and(
                     series.member.isNull.or(
                         series.member.auth.gender.eq(
-                            if (contentType == ContentType.MALE) {
-                                0
-                            } else {
-                                1
-                            }
+                            if (contentType == ContentType.MALE) 0 else 1
                         )
                     )
                 )
             }
         }
 
-        return queryFactory
-            .select(series)
+        if (!isAuth) {
+            where = where.and(audioContent.isAdult.isFalse)
+        }
+
+        // 차단 필터
+        if (memberId != null) {
+            val blockedSubquery = queryFactory
+                .select(blockMember.id)
+                .from(blockMember)
+                .where(
+                    blockMember.member.id.eq(series.member.id),
+                    blockMember.blockedMember.id.eq(memberId),
+                    blockMember.isActive.isTrue
+                )
+            where = where.and(blockedSubquery.exists().not())
+        }
+
+        val now = LocalDateTime.now()
+        val sevenDaysAgo = now.minusDays(7)
+
+        val contentCount = seriesContent.id.countDistinct()
+        val isNewCase = Expressions.numberTemplate(
+            Int::class.java,
+            "case when {0} then 1 else 0 end",
+            audioContent.releaseDate.between(sevenDaysAgo, now)
+        )
+        val isNewFlag = isNewCase.max()
+        val seriesPublishedDay = Expressions.enumPath(SeriesPublishedDaysOfWeek::class.java, "seriesPublishedDay")
+        val publishedDaysConcat = Expressions.stringTemplate(
+            "group_concat(distinct {0} order by {0} separator ',')",
+            seriesPublishedDay
+        )
+        val latestReleaseDate = audioContent.releaseDate.max()
+
+        val results = queryFactory
+            .select(
+                series.id,
+                series.title,
+                seriesTranslation.renderedPayload,
+                series.coverImage,
+                series.state,
+                member.id,
+                member.nickname,
+                member.profileImage,
+                contentCount,
+                isNewFlag,
+                publishedDaysConcat
+            )
             .from(seriesContent)
             .innerJoin(seriesContent.series, series)
             .innerJoin(seriesContent.content, audioContent)
             .innerJoin(series.member, member)
             .innerJoin(series.genre, seriesGenre)
+            .leftJoin(series.publishedDaysOfWeek, seriesPublishedDay)
+            .leftJoin(seriesTranslation).on(series.id.eq(seriesTranslation.seriesId), seriesTranslation.locale.eq(locale))
             .where(where)
             .groupBy(series.id)
-            .orderBy(audioContent.releaseDate.max().desc(), series.createdAt.asc())
+            .having(contentCount.gt(0))
+            .orderBy(latestReleaseDate.desc(), series.createdAt.asc())
             .offset(offset)
             .limit(limit)
             .fetch()
+
+        return results.map { row ->
+            val sId = row.get(series.id)!!
+            val originTitle = row.get(series.title)!!
+            val payload = row.get(seriesTranslation.renderedPayload)
+            val translatedTitle = payload?.title
+            val coverImg = row.get(series.coverImage)
+            val state = row.get(series.state)
+            val cId = row.get(member.id)!!
+            val nick = row.get(member.nickname)!!
+            val profImg = row.get(member.profileImage)
+            val nContent = row.get(contentCount) ?: 0L
+            val isN = (row.get(isNewFlag) ?: 0) > 0
+            val rawDays = parsePublishedDaysOfWeek(row.get(publishedDaysConcat))
+
+            GetSeriesListResponse.SeriesListItem(
+                seriesId = sId,
+                title = if (translatedTitle.isNullOrBlank()) originTitle else translatedTitle,
+                coverImage = "$imageHost/$coverImg",
+                publishedDaysOfWeek = "", // Service layer will fill this
+                isComplete = state == SeriesState.COMPLETE,
+                creator = GetSeriesListResponse.SeriesListItemCreator(
+                    creatorId = cId,
+                    nickname = nick,
+                    profileImage = "$imageHost/$profImg"
+                ),
+                numberOfContent = nContent.toInt(),
+                isNew = isN,
+                rawPublishedDaysOfWeek = rawDays
+            )
+        }
     }
 
     override fun getSeriesDetail(seriesId: Long, isAuth: Boolean, contentType: ContentType): Series? {
@@ -337,34 +572,120 @@ class ContentSeriesQueryRepositoryImpl(
             .fetchFirst()
     }
 
-    override fun getRecommendSeriesList(isAuth: Boolean, contentType: ContentType, limit: Long): List<Series> {
+    override fun getRecommendSeriesListV2(
+        imageHost: String,
+        isAuth: Boolean,
+        contentType: ContentType,
+        limit: Long,
+        locale: String,
+        memberId: Long?
+    ): List<GetSeriesListResponse.SeriesListItem> {
         var where = series.isActive.isTrue
+            .and(audioContent.isActive.isTrue)
 
         if (!isAuth) {
-            where = where.and(series.isAdult.isFalse)
+            where = where
+                .and(series.isAdult.isFalse)
+                .and(audioContent.isAdult.isFalse)
         } else {
             if (contentType != ContentType.ALL) {
                 where = where.and(
                     series.member.isNull.or(
                         series.member.auth.gender.eq(
-                            if (contentType == ContentType.MALE) {
-                                0
-                            } else {
-                                1
-                            }
+                            if (contentType == ContentType.MALE) 0 else 1
                         )
                     )
                 )
             }
         }
 
-        return queryFactory
-            .selectFrom(series)
+        // 차단 필터
+        if (memberId != null) {
+            val blockedSubquery = queryFactory
+                .select(blockMember.id)
+                .from(blockMember)
+                .where(
+                    blockMember.member.id.eq(series.member.id),
+                    blockMember.blockedMember.id.eq(memberId),
+                    blockMember.isActive.isTrue
+                )
+            where = where.and(blockedSubquery.exists().not())
+        }
+
+        val now = LocalDateTime.now()
+        val sevenDaysAgo = now.minusDays(7)
+
+        val contentCount = seriesContent.id.countDistinct()
+        val isNewCase = Expressions.numberTemplate(
+            Int::class.java,
+            "case when {0} then 1 else 0 end",
+            audioContent.releaseDate.between(sevenDaysAgo, now)
+        )
+        val isNewFlag = isNewCase.max()
+        val seriesPublishedDay = Expressions.enumPath(SeriesPublishedDaysOfWeek::class.java, "seriesPublishedDay")
+        val publishedDaysConcat = Expressions.stringTemplate(
+            "group_concat(distinct {0} order by {0} separator ',')",
+            seriesPublishedDay
+        )
+
+        val results = queryFactory
+            .select(
+                series.id,
+                series.title,
+                seriesTranslation.renderedPayload,
+                series.coverImage,
+                series.state,
+                member.id,
+                member.nickname,
+                member.profileImage,
+                contentCount,
+                isNewFlag,
+                publishedDaysConcat
+            )
+            .from(series)
+            .innerJoin(series.member, member)
+            .innerJoin(seriesContent).on(series.id.eq(seriesContent.series.id))
+            .innerJoin(seriesContent.content, audioContent)
+            .leftJoin(series.publishedDaysOfWeek, seriesPublishedDay)
+            .leftJoin(seriesTranslation).on(series.id.eq(seriesTranslation.seriesId), seriesTranslation.locale.eq(locale))
             .where(where)
+            .groupBy(series.id)
+            .having(contentCount.gt(0))
             .orderBy(Expressions.numberTemplate(Double::class.java, "function('rand')").asc())
             .offset(0)
             .limit(limit)
             .fetch()
+
+        return results.map { row ->
+            val sId = row.get(series.id)!!
+            val originTitle = row.get(series.title)!!
+            val payload = row.get(seriesTranslation.renderedPayload)
+            val translatedTitle = payload?.title
+            val coverImg = row.get(series.coverImage)
+            val state = row.get(series.state)
+            val cId = row.get(member.id)!!
+            val nick = row.get(member.nickname)!!
+            val profImg = row.get(member.profileImage)
+            val nContent = row.get(contentCount) ?: 0L
+            val isN = (row.get(isNewFlag) ?: 0) > 0
+            val rawDays = parsePublishedDaysOfWeek(row.get(publishedDaysConcat))
+
+            GetSeriesListResponse.SeriesListItem(
+                seriesId = sId,
+                title = if (translatedTitle.isNullOrBlank()) originTitle else translatedTitle,
+                coverImage = "$imageHost/$coverImg",
+                publishedDaysOfWeek = "", // Service layer will fill this
+                isComplete = state == SeriesState.COMPLETE,
+                creator = GetSeriesListResponse.SeriesListItemCreator(
+                    creatorId = cId,
+                    nickname = nick,
+                    profileImage = "$imageHost/$profImg"
+                ),
+                numberOfContent = nContent.toInt(),
+                isNew = isN,
+                rawPublishedDaysOfWeek = rawDays
+            )
+        }
     }
 
     override fun getOriginalAudioDramaList(
@@ -377,6 +698,7 @@ class ContentSeriesQueryRepositoryImpl(
     ): List<GetSeriesListResponse.SeriesListItem> {
         var where = series.isOriginal.isTrue
             .and(series.isActive.isTrue)
+            .and(audioContent.isActive.isTrue)
 
         if (!isAdult) {
             where = where.and(series.isAdult.isFalse)
@@ -396,30 +718,25 @@ class ContentSeriesQueryRepositoryImpl(
             }
         }
 
+        if (!isAdult) {
+            where = where.and(audioContent.isAdult.isFalse)
+        }
+
         val now = LocalDateTime.now()
         val sevenDaysAgo = now.minusDays(7)
 
-        val contentCountSubquery = queryFactory
-            .select(seriesContent.id.count())
-            .from(seriesContent)
-            .innerJoin(seriesContent.content, audioContent)
-            .where(
-                seriesContent.series.id.eq(series.id),
-                audioContent.isActive.isTrue,
-                if (!isAdult) audioContent.isAdult.isFalse else null
-            )
-
-        val isNewSubquery = queryFactory
-            .select(seriesContent.id)
-            .from(seriesContent)
-            .innerJoin(seriesContent.content, audioContent)
-            .where(
-                seriesContent.series.id.eq(series.id),
-                audioContent.isActive.isTrue,
-                if (!isAdult) audioContent.isAdult.isFalse else null,
-                audioContent.releaseDate.between(sevenDaysAgo, now)
-            )
-            .limit(1)
+        val contentCount = seriesContent.id.countDistinct()
+        val isNewCase = Expressions.numberTemplate(
+            Int::class.java,
+            "case when {0} then 1 else 0 end",
+            audioContent.releaseDate.between(sevenDaysAgo, now)
+        )
+        val isNewFlag = isNewCase.max()
+        val seriesPublishedDay = Expressions.enumPath(SeriesPublishedDaysOfWeek::class.java, "seriesPublishedDay")
+        val publishedDaysConcat = Expressions.stringTemplate(
+            "group_concat(distinct {0} order by {0} separator ',')",
+            seriesPublishedDay
+        )
 
         val results = queryFactory
             .select(
@@ -431,15 +748,19 @@ class ContentSeriesQueryRepositoryImpl(
                 member.id,
                 member.nickname,
                 member.profileImage,
-                contentCountSubquery,
-                isNewSubquery.exists(),
-                series
+                contentCount,
+                isNewFlag,
+                publishedDaysConcat
             )
             .from(series)
             .innerJoin(series.member, member)
+            .innerJoin(seriesContent).on(series.id.eq(seriesContent.series.id))
+            .innerJoin(seriesContent.content, audioContent)
+            .leftJoin(series.publishedDaysOfWeek, seriesPublishedDay)
             .leftJoin(seriesTranslation).on(series.id.eq(seriesTranslation.seriesId), seriesTranslation.locale.eq(locale))
             .where(where)
-            .having(contentCountSubquery.gt(0))
+            .groupBy(series.id)
+            .having(contentCount.gt(0))
             .orderBy(series.id.desc())
             .offset(offset)
             .limit(limit)
@@ -455,9 +776,9 @@ class ContentSeriesQueryRepositoryImpl(
             val creatorId = row.get(member.id)!!
             val nickname = row.get(member.nickname)!!
             val profileImage = row.get(member.profileImage)
-            val numberOfContent = row.get(8, Long::class.java) ?: 0L
-            val isNew = row.get(9, Boolean::class.java) ?: false
-            val seriesEntity = row.get(series)!!
+            val numberOfContent = row.get(contentCount) ?: 0L
+            val isNew = (row.get(isNewFlag) ?: 0) > 0
+            val rawDays = parsePublishedDaysOfWeek(row.get(publishedDaysConcat))
 
             GetSeriesListResponse.SeriesListItem(
                 seriesId = seriesId,
@@ -472,7 +793,7 @@ class ContentSeriesQueryRepositoryImpl(
                 ),
                 numberOfContent = numberOfContent.toInt(),
                 isNew = isNew,
-                rawPublishedDaysOfWeek = seriesEntity.publishedDaysOfWeek
+                rawPublishedDaysOfWeek = rawDays
             )
         }
     }
@@ -560,12 +881,14 @@ class ContentSeriesQueryRepositoryImpl(
             .fetch()
     }
 
-    override fun findByCurationId(
+    override fun findByCurationIdV2(
+        imageHost: String,
         curationId: Long,
         memberId: Long,
         isAdult: Boolean,
-        contentType: ContentType
-    ): List<Series> {
+        contentType: ContentType,
+        locale: String
+    ): List<GetSeriesListResponse.SeriesListItem> {
         val blockMemberCondition = blockMember.member.id.eq(member.id)
             .and(blockMember.isActive.isTrue)
             .and(blockMember.blockedMember.id.eq(memberId))
@@ -576,6 +899,7 @@ class ContentSeriesQueryRepositoryImpl(
             .and(audioContentCuration.id.eq(curationId))
             .and(audioContentCurationItem.isActive.isTrue)
             .and(blockMember.id.isNull)
+            .and(audioContent.isActive.isTrue)
 
         if (!isAdult) {
             where = where.and(series.isAdult.isFalse)
@@ -584,38 +908,108 @@ class ContentSeriesQueryRepositoryImpl(
                 where = where.and(
                     series.member.isNull.or(
                         series.member.auth.gender.eq(
-                            if (contentType == ContentType.MALE) {
-                                0
-                            } else {
-                                1
-                            }
+                            if (contentType == ContentType.MALE) 0 else 1
                         )
                     )
                 )
             }
         }
 
-        return queryFactory
-            .select(series)
+        if (!isAdult) {
+            where = where.and(audioContent.isAdult.isFalse)
+        }
+
+        val now = LocalDateTime.now()
+        val sevenDaysAgo = now.minusDays(7)
+
+        val contentCount = seriesContent.id.countDistinct()
+        val isNewCase = Expressions.numberTemplate(
+            Int::class.java,
+            "case when {0} then 1 else 0 end",
+            audioContent.releaseDate.between(sevenDaysAgo, now)
+        )
+        val isNewFlag = isNewCase.max()
+        val minCurationOrder = audioContentCurationItem.orders.min()
+        val seriesPublishedDay = Expressions.enumPath(SeriesPublishedDaysOfWeek::class.java, "seriesPublishedDay")
+        val publishedDaysConcat = Expressions.stringTemplate(
+            "group_concat(distinct {0} order by {0} separator ',')",
+            seriesPublishedDay
+        )
+
+        val results = queryFactory
+            .select(
+                series.id,
+                series.title,
+                seriesTranslation.renderedPayload,
+                series.coverImage,
+                series.state,
+                member.id,
+                member.nickname,
+                member.profileImage,
+                contentCount,
+                isNewFlag,
+                publishedDaysConcat,
+                minCurationOrder
+            )
             .from(audioContentCurationItem)
             .innerJoin(audioContentCurationItem.curation, audioContentCuration)
             .innerJoin(audioContentCurationItem.series, series)
             .innerJoin(series.member, member)
+            .innerJoin(seriesContent).on(series.id.eq(seriesContent.series.id))
+            .innerJoin(seriesContent.content, audioContent)
+            .leftJoin(series.publishedDaysOfWeek, seriesPublishedDay)
             .leftJoin(blockMember).on(blockMemberCondition)
+            .leftJoin(seriesTranslation).on(series.id.eq(seriesTranslation.seriesId), seriesTranslation.locale.eq(locale))
             .where(where)
-            .orderBy(audioContentCurationItem.orders.asc())
+            .groupBy(series.id)
+            .orderBy(minCurationOrder.asc(), series.id.asc())
             .fetch()
+
+        return results.map { row ->
+            val sId = row.get(series.id)!!
+            val originTitle = row.get(series.title)!!
+            val payload = row.get(seriesTranslation.renderedPayload)
+            val translatedTitle = payload?.title
+            val coverImg = row.get(series.coverImage)
+            val state = row.get(series.state)
+            val cId = row.get(member.id)!!
+            val nick = row.get(member.nickname)!!
+            val profImg = row.get(member.profileImage)
+            val nContent = row.get(contentCount) ?: 0L
+            val isN = (row.get(isNewFlag) ?: 0) > 0
+            val rawDays = parsePublishedDaysOfWeek(row.get(publishedDaysConcat))
+
+            GetSeriesListResponse.SeriesListItem(
+                seriesId = sId,
+                title = if (translatedTitle.isNullOrBlank()) originTitle else translatedTitle,
+                coverImage = "$imageHost/$coverImg",
+                publishedDaysOfWeek = "", // Service layer will fill this
+                isComplete = state == SeriesState.COMPLETE,
+                creator = GetSeriesListResponse.SeriesListItemCreator(
+                    creatorId = cId,
+                    nickname = nick,
+                    profileImage = "$imageHost/$profImg"
+                ),
+                numberOfContent = nContent.toInt(),
+                isNew = isN,
+                rawPublishedDaysOfWeek = rawDays
+            )
+        }
     }
 
-    override fun getDayOfWeekSeriesList(
+    override fun getDayOfWeekSeriesListV2(
+        imageHost: String,
         dayOfWeek: SeriesPublishedDaysOfWeek,
         contentType: ContentType,
         isAdult: Boolean,
         offset: Long,
-        limit: Long
-    ): List<Series> {
+        limit: Long,
+        locale: String,
+        memberId: Long?
+    ): List<GetSeriesListResponse.SeriesListItem> {
         var where = series.isActive.isTrue
             .and(series.publishedDaysOfWeek.contains(dayOfWeek))
+            .and(audioContent.isActive.isTrue)
 
         if (!isAdult) {
             where = where.and(series.isAdult.isFalse)
@@ -624,24 +1018,103 @@ class ContentSeriesQueryRepositoryImpl(
                 where = where.and(
                     series.member.isNull.or(
                         series.member.auth.gender.eq(
-                            if (contentType == ContentType.MALE) {
-                                0
-                            } else {
-                                1
-                            }
+                            if (contentType == ContentType.MALE) 0 else 1
                         )
                     )
                 )
             }
         }
 
-        return queryFactory
-            .selectFrom(series)
+        if (!isAdult) {
+            where = where.and(audioContent.isAdult.isFalse)
+        }
+
+        // 차단 필터
+        if (memberId != null) {
+            val blockedSubquery = queryFactory
+                .select(blockMember.id)
+                .from(blockMember)
+                .where(
+                    blockMember.member.id.eq(series.member.id),
+                    blockMember.blockedMember.id.eq(memberId),
+                    blockMember.isActive.isTrue
+                )
+            where = where.and(blockedSubquery.exists().not())
+        }
+
+        val now = LocalDateTime.now()
+        val sevenDaysAgo = now.minusDays(7)
+
+        val contentCount = seriesContent.id.countDistinct()
+        val isNewCase = Expressions.numberTemplate(
+            Int::class.java,
+            "case when {0} then 1 else 0 end",
+            audioContent.releaseDate.between(sevenDaysAgo, now)
+        )
+        val isNewFlag = isNewCase.max()
+        val seriesPublishedDay = Expressions.enumPath(SeriesPublishedDaysOfWeek::class.java, "seriesPublishedDay")
+        val publishedDaysConcat = Expressions.stringTemplate(
+            "group_concat(distinct {0} order by {0} separator ',')",
+            seriesPublishedDay
+        )
+
+        val results = queryFactory
+            .select(
+                series.id,
+                series.title,
+                seriesTranslation.renderedPayload,
+                series.coverImage,
+                series.state,
+                member.id,
+                member.nickname,
+                member.profileImage,
+                contentCount,
+                isNewFlag,
+                publishedDaysConcat
+            )
+            .from(series)
+            .innerJoin(series.member, member)
+            .innerJoin(seriesContent).on(series.id.eq(seriesContent.series.id))
+            .innerJoin(seriesContent.content, audioContent)
+            .leftJoin(series.publishedDaysOfWeek, seriesPublishedDay)
+            .leftJoin(seriesTranslation).on(series.id.eq(seriesTranslation.seriesId), seriesTranslation.locale.eq(locale))
             .where(where)
             .groupBy(series.id)
+            .having(contentCount.gt(0))
             .offset(offset)
             .limit(limit)
             .orderBy(series.createdAt.desc())
             .fetch()
+
+        return results.map { row ->
+            val sId = row.get(series.id)!!
+            val originTitle = row.get(series.title)!!
+            val payload = row.get(seriesTranslation.renderedPayload)
+            val translatedTitle = payload?.title
+            val coverImg = row.get(series.coverImage)
+            val state = row.get(series.state)
+            val cId = row.get(member.id)!!
+            val nick = row.get(member.nickname)!!
+            val profImg = row.get(member.profileImage)
+            val nContent = row.get(contentCount) ?: 0L
+            val isN = (row.get(isNewFlag) ?: 0) > 0
+            val rawDays = parsePublishedDaysOfWeek(row.get(publishedDaysConcat))
+
+            GetSeriesListResponse.SeriesListItem(
+                seriesId = sId,
+                title = if (translatedTitle.isNullOrBlank()) originTitle else translatedTitle,
+                coverImage = "$imageHost/$coverImg",
+                publishedDaysOfWeek = "", // Service layer will fill this
+                isComplete = state == SeriesState.COMPLETE,
+                creator = GetSeriesListResponse.SeriesListItemCreator(
+                    creatorId = cId,
+                    nickname = nick,
+                    profileImage = "$imageHost/$profImg"
+                ),
+                numberOfContent = nContent.toInt(),
+                isNew = isN,
+                rawPublishedDaysOfWeek = rawDays
+            )
+        }
     }
 }

src/main/kotlin/kr/co/vividnext/sodalive/content/series/ContentSeriesService.kt

@@ -12,10 +12,8 @@ import kr.co.vividnext.sodalive.content.series.translation.SeriesTranslationPayl
 import kr.co.vividnext.sodalive.content.series.translation.SeriesTranslationRepository
 import kr.co.vividnext.sodalive.content.series.translation.TranslatedSeries
 import kr.co.vividnext.sodalive.content.translation.ContentTranslationRepository
-import kr.co.vividnext.sodalive.creator.admin.content.series.Series
 import kr.co.vividnext.sodalive.creator.admin.content.series.SeriesPublishedDaysOfWeek
 import kr.co.vividnext.sodalive.creator.admin.content.series.SeriesSortType
-import kr.co.vividnext.sodalive.creator.admin.content.series.SeriesState
 import kr.co.vividnext.sodalive.explorer.ExplorerQueryRepository
 import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.i18n.LangContext
@@ -26,7 +24,6 @@ import kr.co.vividnext.sodalive.member.block.BlockMemberRepository
 import org.springframework.beans.factory.annotation.Value
 import org.springframework.stereotype.Service
 import org.springframework.transaction.annotation.Transactional
-import java.time.LocalDateTime
 import java.time.ZoneId
 import java.time.format.DateTimeFormatter
 
@@ -160,10 +157,11 @@ class ContentSeriesService(
             isAuth = isAuth,
             contentType = contentType,
             isOriginal = isOriginal,
-            isCompleted = isCompleted
+            isCompleted = isCompleted,
+            memberId = member.id
         )
 
-        val rawItems = repository.getSeriesList(
+        val items = repository.getSeriesListV2(
             imageHost = coverImageHost,
             creatorId = creatorId,
             isAuth = isAuth,
@@ -172,11 +170,14 @@ class ContentSeriesService(
             isCompleted = isCompleted,
             orderByRandom = orderByRandom,
             offset = offset,
-            limit = limit
-        ).filter { !blockMemberRepository.isBlocked(blockedMemberId = member.id!!, memberId = it.member!!.id!!) }
+            limit = limit,
+            locale = langContext.lang.code,
+            memberId = member.id
+        ).map { item ->
+            item.copy(publishedDaysOfWeek = publishedDaysOfWeekText(item.rawPublishedDaysOfWeek))
+        }
 
-        val items = seriesToSeriesListItem(seriesList = rawItems, isAdult = isAuth, contentType = contentType)
-        return GetSeriesListResponse(totalCount, getTranslatedSeriesList(items))
+        return GetSeriesListResponse(totalCount, items)
     }
 
     fun getSeriesListByGenre(
@@ -192,20 +193,24 @@ class ContentSeriesService(
         val totalCount = repository.getSeriesByGenreTotalCount(
             genreId = genreId,
             isAuth = isAuth,
-            contentType = contentType
+            contentType = contentType,
+            memberId = member.id
         )
 
-        val rawItems = repository.getSeriesByGenreList(
+        val items = repository.getSeriesByGenreListV2(
             imageHost = coverImageHost,
             genreId = genreId,
             isAuth = isAuth,
             contentType = contentType,
             offset = offset,
-            limit = limit
-        ).filter { !blockMemberRepository.isBlocked(blockedMemberId = member.id!!, memberId = it.member!!.id!!) }
+            limit = limit,
+            locale = langContext.lang.code,
+            memberId = member.id
+        ).map { item ->
+            item.copy(publishedDaysOfWeek = publishedDaysOfWeekText(item.rawPublishedDaysOfWeek))
+        }
 
-        val items = seriesToSeriesListItem(seriesList = rawItems, isAdult = isAuth, contentType = contentType)
-        return GetSeriesListResponse(totalCount, getTranslatedSeriesList(items))
+        return GetSeriesListResponse(totalCount, items)
     }
 
     @Transactional
@@ -468,19 +473,16 @@ class ContentSeriesService(
         member: Member
     ): List<GetSeriesListResponse.SeriesListItem> {
         val isAuth = member.auth != null && isAdultContentVisible
-        val seriesList = repository.getRecommendSeriesList(
+        return repository.getRecommendSeriesListV2(
+            imageHost = coverImageHost,
             isAuth = isAuth,
             contentType = contentType,
-            limit = 20
-        ).filter { !blockMemberRepository.isBlocked(blockedMemberId = member.id!!, memberId = it.member!!.id!!) }
-
-        return getTranslatedSeriesList(
-            seriesToSeriesListItem(
-                seriesList = seriesList,
-                isAdult = isAuth,
-                contentType = contentType
-            )
-        )
+            limit = 20,
+            locale = langContext.lang.code,
+            memberId = member.id
+        ).map { item ->
+            item.copy(publishedDaysOfWeek = publishedDaysOfWeekText(item.rawPublishedDaysOfWeek))
+        }
     }
 
     fun fetchSeriesByCurationId(
@@ -489,13 +491,16 @@ class ContentSeriesService(
         isAdult: Boolean,
         contentType: ContentType
     ): List<GetSeriesListResponse.SeriesListItem> {
-        val seriesList = repository.findByCurationId(
+        return repository.findByCurationIdV2(
+            imageHost = coverImageHost,
             curationId = curationId,
             memberId = memberId,
             isAdult = isAdult,
-            contentType = contentType
-        )
-        return getTranslatedSeriesList(seriesToSeriesListItem(seriesList, isAdult, contentType))
+            contentType = contentType,
+            locale = langContext.lang.code
+        ).map { item ->
+            item.copy(publishedDaysOfWeek = publishedDaysOfWeekText(item.rawPublishedDaysOfWeek))
+        }
     }
 
     fun getDayOfWeekSeriesList(
@@ -506,72 +511,18 @@ class ContentSeriesService(
         offset: Long = 0,
         limit: Long = 10
     ): List<GetSeriesListResponse.SeriesListItem> {
-        var seriesList = repository.getDayOfWeekSeriesList(
+        return repository.getDayOfWeekSeriesListV2(
+            imageHost = coverImageHost,
             dayOfWeek = dayOfWeek,
             contentType = contentType,
             isAdult = isAdult,
             offset = offset,
-            limit = limit
-        )
-
-        seriesList = if (memberId != null) {
-            seriesList.filter {
-                !blockMemberRepository.isBlocked(
-                    blockedMemberId = memberId,
-                    memberId = it.member!!.id!!
-                )
-            }
-        } else {
-            seriesList
+            limit = limit,
+            locale = langContext.lang.code,
+            memberId = memberId
+        ).map { item ->
+            item.copy(publishedDaysOfWeek = publishedDaysOfWeekText(item.rawPublishedDaysOfWeek))
         }
-
-        return getTranslatedSeriesList(seriesToSeriesListItem(seriesList, isAdult, contentType))
-    }
-
-    private fun seriesToSeriesListItem(
-        seriesList: List<Series>,
-        isAdult: Boolean,
-        contentType: ContentType
-    ): List<GetSeriesListResponse.SeriesListItem> {
-        return seriesList
-            .map {
-                GetSeriesListResponse.SeriesListItem(
-                    seriesId = it.id!!,
-                    title = it.title,
-                    coverImage = "$coverImageHost/${it.coverImage!!}",
-                    publishedDaysOfWeek = publishedDaysOfWeekText(it.publishedDaysOfWeek),
-                    isComplete = it.state == SeriesState.COMPLETE,
-                    creator = GetSeriesListResponse.SeriesListItemCreator(
-                        creatorId = it.member!!.id!!,
-                        nickname = it.member!!.nickname,
-                        profileImage = "$coverImageHost/${it.member!!.profileImage!!}"
-                    )
-                )
-            }
-            .map {
-                it.numberOfContent = seriesContentRepository.getContentCount(
-                    seriesId = it.seriesId,
-                    isAdult = isAdult,
-                    contentType = contentType
-                )
-
-                it
-            }
-            .filter {
-                it.numberOfContent > 0
-            }
-            .map {
-                val nowDateTime = LocalDateTime.now()
-
-                it.isNew = seriesContentRepository.isNewContent(
-                    seriesId = it.seriesId,
-                    isAdult = isAdult,
-                    fromDate = nowDateTime.minusDays(7),
-                    nowDate = nowDateTime
-                )
-
-                it
-            }
     }
 
     private fun publishedDaysOfWeekText(publishedDaysOfWeek: Set<SeriesPublishedDaysOfWeek>): String {
@@ -641,39 +592,4 @@ class ContentSeriesService(
             }
         }
     }
-
-    /**
-     * 시리즈 리스트의 제목을 현재 언어(locale)에 맞춰 일괄 번역한다.
-     *
-     * 처리 절차:
-     * - 입력된 시리즈들의 seriesId 집합을 만들고, 요청 언어 코드(langContext.lang.code)로
-     *   seriesTranslationRepository에서 번역 데이터를 한 번에 조회한다.
-     * - 각 항목에 대해 번역된 제목이 존재하고 비어있지 않으면 title만 번역 값으로 교체한다.
-     * - 번역이 없거나 공백이면 원본 항목을 그대로 반환한다.
-     *
-     * 성능:
-     * - N건의 항목을 1회의 조회로 해결하기 위해 IN 쿼리를 사용한다.
-     *
-     * @param seriesList 번역 대상 SeriesListItem 목록
-     * @return 제목이 가능한 항목은 번역된 목록(불변 사본), 그 외는 원본 항목 유지
-     */
-    private fun getTranslatedSeriesList(
-        seriesList: List<GetSeriesListResponse.SeriesListItem>
-    ): List<GetSeriesListResponse.SeriesListItem> {
-        val seriesIds = seriesList.map { it.seriesId }
-        if (seriesIds.isEmpty()) return seriesList
-
-        val translations = seriesTranslationRepository
-            .findBySeriesIdInAndLocale(seriesIds = seriesIds, locale = langContext.lang.code)
-            .associateBy { it.seriesId }
-
-        return seriesList.map { item ->
-            val translatedTitle = translations[item.seriesId]?.renderedPayload?.title
-            if (translatedTitle.isNullOrBlank()) {
-                item
-            } else {
-                item.copy(title = translatedTitle)
-            }
-        }
-    }
 }