fix(recommend-live): 차단 관계를 추천 조회에 반영하고 캐시를 무효화한다

docs/20260226_라이브추천차단조인및캐시무효화.md

@@ -0,0 +1,17 @@
+# 라이브 추천 차단 JOIN 및 캐시 무효화
+
+- [x] `LiveRecommendService.getRecommendLive`의 차단 필터 처리 구조 점검
+- [x] `LiveRecommendRepository.getRecommendLive`를 DB 조회 시 차단 관계를 JOIN/조건으로 제외하도록 변경
+- [x] 차단(`memberBlock`) 및 차단 해제(`memberUnBlock`) 시 추천 라이브 캐시가 즉시 반영되도록 무효화 처리
+- [x] 변경 코드 정적 진단 및 테스트/빌드 검증
+- [x] 검증 기록 작성
+
+## 검증 기록
+
+### 1차 구현
+- 무엇을: `getRecommendLive`의 차단 제외 로직을 서비스 단 필터링에서 QueryDSL `leftJoin(blockMember)` + `blockMember.id.isNull` 조건으로 이동했고, 차단/차단해제 시 `CacheManager`로 `getRecommendLive:{memberId}` 키를 직접 evict 하도록 적용했다.
+- 왜: 기존 방식은 추천 결과 조회 후 creator마다 `isBlocked`를 반복 호출해 후처리하고, 캐시 만료 전까지 차단/해제 결과가 반영되지 않는 문제가 있어 DB 레벨 필터링과 이벤트성 캐시 무효화가 필요했다.
+- 어떻게:
+  - `lsp_diagnostics` (대상: `LiveRecommendRepository.kt`, `LiveRecommendService.kt`, `MemberService.kt`) 실행 결과: **환경상 Kotlin LSP 미구성으로 진단 불가**
+  - `./gradlew test` 실행 결과: **성공 (BUILD SUCCESSFUL)**
+  - `./gradlew build` 실행 결과: **성공 (BUILD SUCCESSFUL, ktlint/check 포함)**

docs/20260226_라이브추천차단조인캐시무효화검증테스트.md

@@ -0,0 +1,21 @@
+# 라이브 추천 차단 JOIN/캐시 무효화 검증 테스트
+
+- [x] `LiveRecommendRepository.getRecommendLive`가 차단 관계(`member -> creator`, `creator -> member`)를 DB 조회 단계에서 제외하는지 테스트 추가
+- [x] `LiveRecommendService.getRecommendLive`가 서비스 단 후처리 없이 저장소 결과를 그대로 위임하는지 테스트 추가
+- [x] `MemberService.memberBlock`/`memberUnBlock` 호출 시 추천 라이브 캐시 키(`getRecommendLive:{memberId}`)가 즉시 무효화되는지 테스트 추가
+- [x] 테스트 및 빌드 검증 수행
+- [x] 검증 기록 작성
+
+## 검증 기록
+
+### 1차 검증 테스트 구현
+- 무엇을: 문서 요구사항(추천 라이브 차단 JOIN, 서비스 위임 구조, 차단/해제 시 캐시 무효화)을 검증하는 테스트 3종을 추가했다.
+  - `src/test/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendRepositoryTest.kt`
+  - `src/test/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendServiceTest.kt`
+  - `src/test/kotlin/kr/co/vividnext/sodalive/member/MemberServiceCacheEvictionTest.kt`
+- 왜: `docs/20260226_라이브추천차단조인및캐시무효화.md`에 기재된 구현이 실제 코드에서 회귀 없이 유지되는지 자동 검증이 필요하다.
+- 어떻게:
+  - `lsp_diagnostics` (대상: 위 3개 Kotlin 테스트 파일) 실행 결과: **환경상 Kotlin LSP 미구성으로 진단 불가**
+  - `./gradlew test --tests "kr.co.vividnext.sodalive.live.recommend.LiveRecommendRepositoryTest" --tests "kr.co.vividnext.sodalive.live.recommend.LiveRecommendServiceTest" --tests "kr.co.vividnext.sodalive.member.MemberServiceCacheEvictionTest"` 실행 결과: **성공 (BUILD SUCCESSFUL)**
+  - `./gradlew build` 1차 실행 결과: **실패 (`MemberServiceCacheEvictionTest.kt` 라인 길이/인자 줄바꿈 ktlint 위반)**
+  - `MemberServiceCacheEvictionTest.kt` 포맷 수정 후 `./gradlew build` 재실행 결과: **성공 (BUILD SUCCESSFUL, test/check/ktlint 통과)**

src/main/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendRepository.kt

@@ -7,6 +7,7 @@ import kr.co.vividnext.sodalive.live.recommend.QRecommendLiveCreatorBanner.recom
 import kr.co.vividnext.sodalive.live.room.QLiveRoom.liveRoom
 import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.member.QMember.member
+import kr.co.vividnext.sodalive.member.block.QBlockMember.blockMember
 import kr.co.vividnext.sodalive.member.following.QCreatorFollowing.creatorFollowing
 import org.springframework.beans.factory.annotation.Value
 import org.springframework.stereotype.Repository
@@ -20,7 +21,7 @@ class LiveRecommendRepository(
     private val cloudFrontHost: String
 ) {
     fun getRecommendLive(
-        isBlocked: (Long) -> Boolean,
+        memberId: Long?,
         isAdult: Boolean
     ): List<GetRecommendLiveResponse> {
         val dateNow = LocalDateTime.now()
@@ -32,7 +33,7 @@ class LiveRecommendRepository(
             where = where.and(recommendLiveCreatorBanner.isAdult.isFalse)
         }
 
-        return queryFactory
+        var select = queryFactory
             .select(
                 Projections.constructor(
                     GetRecommendLiveResponse::class.java,
@@ -41,12 +42,26 @@ class LiveRecommendRepository(
                 )
             )
             .from(recommendLiveCreatorBanner)
+
+        if (memberId != null) {
+            val blockMemberCondition = blockMember.isActive.isTrue
+                .and(
+                    blockMember.member.id.eq(recommendLiveCreatorBanner.creator.id)
+                        .and(blockMember.blockedMember.id.eq(memberId))
+                        .or(
+                            blockMember.member.id.eq(memberId)
+                                .and(blockMember.blockedMember.id.eq(recommendLiveCreatorBanner.creator.id))
+                        )
+                )
+
+            where = where.and(blockMember.id.isNull)
+            select = select.leftJoin(blockMember).on(blockMemberCondition)
+        }
+
+        return select
             .where(where)
             .orderBy(recommendLiveCreatorBanner.orders.asc())
             .fetch()
-            .asSequence()
-            .filter { !isBlocked(it.creatorId) }
-            .toList()
     }
 
     fun getOnAirRecommendChannelList(

src/main/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendService.kt

@@ -16,17 +16,11 @@ class LiveRecommendService(
     @Transactional(readOnly = true)
     @Cacheable(
         cacheNames = ["cache_ttl_3_hours"],
-        key = "'getRecommendLive:' + (#member ?: 'guest')"
+        key = "'getRecommendLive:' + (#member?.id ?: 'guest')"
     )
     fun getRecommendLive(member: Member?): List<GetRecommendLiveResponse> {
         return repository.getRecommendLive(
-            isBlocked = {
+            memberId = member?.id,
-                if (member != null) {
-                    isBlockedBetweenMembers(memberId = member.id!!, creatorId = it)
-                } else {
-                    false
-                }
-            },
             isAdult = member?.auth != null
         )
     }

src/main/kotlin/kr/co/vividnext/sodalive/member/MemberService.kt

@@ -54,6 +54,7 @@ import kr.co.vividnext.sodalive.point.MemberPointRepository
 import kr.co.vividnext.sodalive.utils.generateFileName
 import kr.co.vividnext.sodalive.utils.generatePassword
 import org.springframework.beans.factory.annotation.Value
+import org.springframework.cache.CacheManager
 import org.springframework.data.repository.findByIdOrNull
 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken
 import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder
@@ -107,6 +108,7 @@ class MemberService(
     private val countryContext: CountryContext,
 
     private val objectMapper: ObjectMapper,
+    private val cacheManager: CacheManager,
 
     @Value("\${cloud.aws.s3.bucket}")
     private val s3Bucket: String,
@@ -117,6 +119,8 @@ class MemberService(
 
     private val tokenLocks: MutableMap<Long, ReentrantReadWriteLock> = mutableMapOf()
 
+    private val recommendLiveCacheKeyPrefix = "getRecommendLive:"
+
     @Transactional
     fun signUpV2(request: SignUpRequestV2): SignUpResponse {
         val stipulationTermsOfService = stipulationRepository.findByIdOrNull(StipulationIds.TERMS_OF_SERVICE_ID)
@@ -558,6 +562,9 @@ class MemberService(
                 blockMember.isActive = true
             }
         }
+
+        evictRecommendLiveCache(memberId)
+        blockTargetMemberIds.forEach { evictRecommendLiveCache(it) }
     }
 
     @Transactional
@@ -570,6 +577,9 @@ class MemberService(
         if (blockMember != null) {
             blockMember.isActive = false
         }
+
+        evictRecommendLiveCache(memberId)
+        evictRecommendLiveCache(request.blockMemberId)
     }
 
     fun isBlocked(blockedMemberId: Long, memberId: Long) = blockMemberRepository.isBlocked(blockedMemberId, memberId)
@@ -829,6 +839,10 @@ class MemberService(
         return tokenLocks.computeIfAbsent(memberId) { ReentrantReadWriteLock() }
     }
 
+    private fun evictRecommendLiveCache(memberId: Long) {
+        cacheManager.getCache("cache_ttl_3_hours")?.evict(recommendLiveCacheKeyPrefix + memberId)
+    }
+
     @Transactional
     fun updateMarketingInfo(memberId: Long, adid: String, pid: String): String? {
         val member = repository.findByIdOrNull(id = memberId)

src/test/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendRepositoryTest.kt

@@ -0,0 +1,104 @@
+package kr.co.vividnext.sodalive.live.recommend
+
+import com.querydsl.jpa.impl.JPAQueryFactory
+import kr.co.vividnext.sodalive.configs.QueryDslConfig
+import kr.co.vividnext.sodalive.member.Member
+import kr.co.vividnext.sodalive.member.MemberRepository
+import kr.co.vividnext.sodalive.member.MemberRole
+import kr.co.vividnext.sodalive.member.block.BlockMember
+import kr.co.vividnext.sodalive.member.block.BlockMemberRepository
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.Test
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest
+import org.springframework.context.annotation.Import
+import java.time.LocalDateTime
+import javax.persistence.EntityManager
+
+@DataJpaTest(properties = ["spring.cache.type=none"])
+@Import(QueryDslConfig::class)
+class LiveRecommendRepositoryTest @Autowired constructor(
+    private val queryFactory: JPAQueryFactory,
+    private val memberRepository: MemberRepository,
+    private val blockMemberRepository: BlockMemberRepository,
+    private val recommendLiveCreatorBannerRepository: RecommendLiveCreatorBannerRepository,
+    private val entityManager: EntityManager
+) {
+    private lateinit var liveRecommendRepository: LiveRecommendRepository
+
+    @BeforeEach
+    fun setup() {
+        liveRecommendRepository = LiveRecommendRepository(queryFactory, "https://cdn.test")
+    }
+
+    @Test
+    fun shouldExcludeBlockedCreatorsInBothDirections() {
+        val viewer = saveMember(nickname = "viewer", role = MemberRole.USER)
+        val creatorBlockedByViewer = saveMember(nickname = "creator-blocked-by-viewer", role = MemberRole.CREATOR)
+        val creatorBlockingViewer = saveMember(nickname = "creator-blocking-viewer", role = MemberRole.CREATOR)
+        val creatorAllowed = saveMember(nickname = "creator-allowed", role = MemberRole.CREATOR)
+
+        saveBanner(creator = creatorBlockedByViewer, order = 1)
+        saveBanner(creator = creatorBlockingViewer, order = 2)
+        saveBanner(creator = creatorAllowed, order = 3)
+
+        saveBlock(member = viewer, blockedMember = creatorBlockedByViewer, isActive = true)
+        saveBlock(member = creatorBlockingViewer, blockedMember = viewer, isActive = true)
+
+        entityManager.flush()
+        entityManager.clear()
+
+        val result = liveRecommendRepository.getRecommendLive(memberId = viewer.id, isAdult = true)
+
+        assertEquals(1, result.size)
+        assertEquals(creatorAllowed.id, result[0].creatorId)
+    }
+
+    @Test
+    fun shouldKeepCreatorWhenBlockRelationIsInactive() {
+        val viewer = saveMember(nickname = "viewer-inactive", role = MemberRole.USER)
+        val creator = saveMember(nickname = "creator-inactive", role = MemberRole.CREATOR)
+
+        saveBanner(creator = creator, order = 1)
+        saveBlock(member = viewer, blockedMember = creator, isActive = false)
+
+        entityManager.flush()
+        entityManager.clear()
+
+        val result = liveRecommendRepository.getRecommendLive(memberId = viewer.id, isAdult = true)
+
+        assertEquals(1, result.size)
+        assertEquals(creator.id, result[0].creatorId)
+    }
+
+    private fun saveMember(nickname: String, role: MemberRole): Member {
+        return memberRepository.saveAndFlush(
+            Member(
+                email = "$nickname@test.com",
+                password = "password",
+                nickname = nickname,
+                role = role
+            )
+        )
+    }
+
+    private fun saveBanner(creator: Member, order: Int) {
+        val banner = RecommendLiveCreatorBanner(
+            startDate = LocalDateTime.now().minusDays(1),
+            endDate = LocalDateTime.now().plusDays(1),
+            isAdult = false,
+            orders = order,
+            image = "recommend/$order.png"
+        )
+        banner.creator = creator
+        recommendLiveCreatorBannerRepository.saveAndFlush(banner)
+    }
+
+    private fun saveBlock(member: Member, blockedMember: Member, isActive: Boolean) {
+        val block = BlockMember(isActive = isActive)
+        block.member = member
+        block.blockedMember = blockedMember
+        blockMemberRepository.saveAndFlush(block)
+    }
+}

src/test/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendServiceTest.kt

@@ -0,0 +1,62 @@
+package kr.co.vividnext.sodalive.live.recommend
+
+import kr.co.vividnext.sodalive.member.Member
+import kr.co.vividnext.sodalive.member.auth.Auth
+import kr.co.vividnext.sodalive.member.block.BlockMemberRepository
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.Test
+import org.mockito.Mockito
+
+class LiveRecommendServiceTest {
+    private lateinit var repository: LiveRecommendRepository
+    private lateinit var blockMemberRepository: BlockMemberRepository
+    private lateinit var service: LiveRecommendService
+
+    @BeforeEach
+    fun setup() {
+        repository = Mockito.mock(LiveRecommendRepository::class.java)
+        blockMemberRepository = Mockito.mock(BlockMemberRepository::class.java)
+        service = LiveRecommendService(repository, blockMemberRepository)
+    }
+
+    @Test
+    fun shouldDelegateToRepositoryWithAdultFlagWhenMemberIsAuthenticated() {
+        val member = Member(
+            email = "member@test.com",
+            password = "password",
+            nickname = "member"
+        )
+        member.id = 10L
+
+        val auth = Auth(
+            name = "name",
+            birth = "19900101",
+            uniqueCi = "ci",
+            di = "di",
+            gender = 1
+        )
+        auth.member = member
+
+        val expected = listOf(GetRecommendLiveResponse(imageUrl = "https://cdn.test/recommend.png", creatorId = 77L))
+        Mockito.`when`(repository.getRecommendLive(memberId = member.id, isAdult = true)).thenReturn(expected)
+
+        val result = service.getRecommendLive(member)
+
+        assertEquals(expected, result)
+        Mockito.verify(repository).getRecommendLive(memberId = member.id, isAdult = true)
+        Mockito.verifyNoInteractions(blockMemberRepository)
+    }
+
+    @Test
+    fun shouldDelegateToRepositoryAsGuestWhenMemberIsNull() {
+        val expected = listOf(GetRecommendLiveResponse(imageUrl = "https://cdn.test/recommend-guest.png", creatorId = 88L))
+        Mockito.`when`(repository.getRecommendLive(memberId = null, isAdult = false)).thenReturn(expected)
+
+        val result = service.getRecommendLive(null)
+
+        assertEquals(expected, result)
+        Mockito.verify(repository).getRecommendLive(memberId = null, isAdult = false)
+        Mockito.verifyNoInteractions(blockMemberRepository)
+    }
+}

src/test/kotlin/kr/co/vividnext/sodalive/member/MemberServiceCacheEvictionTest.kt

@@ -0,0 +1,128 @@
+package kr.co.vividnext.sodalive.member
+
+import com.fasterxml.jackson.databind.ObjectMapper
+import kr.co.vividnext.sodalive.common.CountryContext
+import kr.co.vividnext.sodalive.i18n.LangContext
+import kr.co.vividnext.sodalive.i18n.SodaMessageSource
+import kr.co.vividnext.sodalive.member.auth.AuthRepository
+import kr.co.vividnext.sodalive.member.block.BlockMember
+import kr.co.vividnext.sodalive.member.block.BlockMemberRepository
+import kr.co.vividnext.sodalive.member.block.MemberBlockRequest
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.Test
+import org.mockito.Mockito
+import org.springframework.cache.Cache
+import org.springframework.cache.CacheManager
+import java.util.Optional
+
+class MemberServiceCacheEvictionTest {
+    private lateinit var memberRepository: MemberRepository
+    private lateinit var blockMemberRepository: BlockMemberRepository
+    private lateinit var authRepository: AuthRepository
+    private lateinit var cacheManager: CacheManager
+    private lateinit var cache: Cache
+    private lateinit var service: MemberService
+
+    @BeforeEach
+    fun setup() {
+        memberRepository = mock()
+        blockMemberRepository = mock()
+        authRepository = mock()
+        cacheManager = mock()
+        cache = mock()
+
+        Mockito.`when`(cacheManager.getCache("cache_ttl_3_hours")).thenReturn(cache)
+
+        service = MemberService(
+            repository = memberRepository,
+            tokenRepository = mock(),
+            stipulationRepository = mock(),
+            stipulationAgreeRepository = mock(),
+            creatorFollowingRepository = mock(),
+            blockMemberRepository = blockMemberRepository,
+            authRepository = authRepository,
+            signOutRepository = mock(),
+            nicknameChangeLogRepository = mock(),
+            memberTagRepository = mock(),
+            liveReservationRepository = mock(),
+            chargeRepository = mock(),
+            memberPointRepository = mock(),
+            orderService = mock(),
+            emailService = mock(),
+            pushTokenService = mock(),
+            canPaymentService = mock(),
+            nicknameGenerateService = mock(),
+            memberNotificationService = mock(),
+            s3Uploader = mock(),
+            validator = mock(),
+            tokenProvider = mock(),
+            passwordEncoder = mock(),
+            authenticationManagerBuilder = mock(),
+            messageSource = SodaMessageSource(),
+            langContext = LangContext(),
+            countryContext = CountryContext(),
+            objectMapper = ObjectMapper(),
+            cacheManager = cacheManager,
+            s3Bucket = "test-bucket",
+            cloudFrontHost = "https://cdn.test"
+        )
+    }
+
+    @Test
+    fun shouldEvictRecommendLiveCacheForRequesterAndTargetOnBlock() {
+        val memberId = 100L
+        val blockedMemberId = 200L
+        val member = createMember(id = memberId, nickname = "requester")
+        val blockedMember = createMember(id = blockedMemberId, nickname = "target")
+
+        Mockito.`when`(memberRepository.findById(memberId)).thenReturn(Optional.of(member))
+        Mockito.`when`(memberRepository.findById(blockedMemberId)).thenReturn(Optional.of(blockedMember))
+        Mockito.`when`(
+            blockMemberRepository.getBlockAccount(
+                blockedMemberId = blockedMemberId,
+                memberId = memberId
+            )
+        ).thenReturn(null)
+
+        service.memberBlock(MemberBlockRequest(blockMemberId = blockedMemberId), memberId)
+
+        Mockito.verify(cache).evict("getRecommendLive:$memberId")
+        Mockito.verify(cache).evict("getRecommendLive:$blockedMemberId")
+        Mockito.verifyNoInteractions(authRepository)
+    }
+
+    @Test
+    fun shouldEvictRecommendLiveCacheForRequesterAndTargetOnUnblock() {
+        val memberId = 300L
+        val blockedMemberId = 400L
+        val blockMember = BlockMember(isActive = true)
+
+        Mockito.`when`(
+            blockMemberRepository.getBlockAccount(
+                blockedMemberId = blockedMemberId,
+                memberId = memberId
+            )
+        ).thenReturn(blockMember)
+
+        service.memberUnBlock(MemberBlockRequest(blockMemberId = blockedMemberId), memberId)
+
+        assertEquals(false, blockMember.isActive)
+        Mockito.verify(cache).evict("getRecommendLive:$memberId")
+        Mockito.verify(cache).evict("getRecommendLive:$blockedMemberId")
+    }
+
+    private fun createMember(id: Long, nickname: String): Member {
+        val member = Member(
+            email = "$nickname@test.com",
+            password = "password",
+            nickname = nickname
+        )
+        member.id = id
+        return member
+    }
+
+    private inline fun <reified T> mock(): T {
+        return Mockito.mock(T::class.java)
+    }
+}