src/main/kotlin/kr/co/vividnext/sodalive/v2/creator/channel/donation/adapter/out/legacy/LegacyCreatorChannelDonationRankingAdapter.kt

@@ -0,0 +1,33 @@
+package kr.co.vividnext.sodalive.v2.creator.channel.donation.adapter.out.legacy
+
+import kr.co.vividnext.sodalive.explorer.profile.CreatorDonationRankingService
+import kr.co.vividnext.sodalive.member.DonationRankingPeriod
+import kr.co.vividnext.sodalive.v2.creator.channel.donation.port.out.CreatorChannelDonationRankingPort
+import kr.co.vividnext.sodalive.v2.creator.channel.donation.port.out.CreatorChannelDonationRankingRecord
+import org.springframework.stereotype.Component
+
+@Component
+class LegacyCreatorChannelDonationRankingAdapter(
+    private val creatorDonationRankingService: CreatorDonationRankingService
+) : CreatorChannelDonationRankingPort {
+    override fun findTopRankings(
+        creatorId: Long,
+        period: DonationRankingPeriod,
+        withDonationCan: Boolean
+    ): List<CreatorChannelDonationRankingRecord> {
+        return creatorDonationRankingService.getMemberDonationRanking(
+            creatorId = creatorId,
+            offset = 0L,
+            limit = 8L,
+            withDonationCan = withDonationCan,
+            period = period
+        ).map {
+            CreatorChannelDonationRankingRecord(
+                userId = it.userId,
+                nickname = it.nickname,
+                profileImage = it.profileImage,
+                donationCan = it.donationCan
+            )
+        }
+    }
+}

src/test/kotlin/kr/co/vividnext/sodalive/v2/creator/channel/donation/adapter/out/legacy/LegacyCreatorChannelDonationRankingAdapterTest.kt

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+package kr.co.vividnext.sodalive.v2.creator.channel.donation.adapter.out.legacy
+
+import kr.co.vividnext.sodalive.explorer.MemberDonationRankingResponse
+import kr.co.vividnext.sodalive.explorer.profile.CreatorDonationRankingService
+import kr.co.vividnext.sodalive.member.DonationRankingPeriod
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Test
+import org.mockito.Mockito
+
+class LegacyCreatorChannelDonationRankingAdapterTest {
+    private val creatorDonationRankingService = Mockito.mock(CreatorDonationRankingService::class.java)
+    private val adapter = LegacyCreatorChannelDonationRankingAdapter(creatorDonationRankingService)
+
+    @Test
+    @DisplayName("누적 기간 후원 랭킹 Top 8을 legacy service에 위임한다")
+    fun shouldDelegateCumulativeRankingRequestToLegacyService() {
+        Mockito.`when`(
+            creatorDonationRankingService.getMemberDonationRanking(
+                creatorId = 10L,
+                offset = 0L,
+                limit = 8L,
+                withDonationCan = false,
+                period = DonationRankingPeriod.CUMULATIVE
+            )
+        ).thenReturn(emptyList())
+
+        val rankings = adapter.findTopRankings(
+            creatorId = 10L,
+            period = DonationRankingPeriod.CUMULATIVE,
+            withDonationCan = false
+        )
+
+        assertEquals(emptyList<Any>(), rankings)
+        Mockito.verify(creatorDonationRankingService).getMemberDonationRanking(
+            creatorId = 10L,
+            offset = 0L,
+            limit = 8L,
+            withDonationCan = false,
+            period = DonationRankingPeriod.CUMULATIVE
+        )
+        Mockito.verifyNoMoreInteractions(creatorDonationRankingService)
+    }
+
+    @Test
+    @DisplayName("주간 기간 후원 랭킹 Top 8을 legacy service에 위임하고 필드를 그대로 매핑한다")
+    fun shouldDelegateWeeklyRankingRequestAndMapFields() {
+        Mockito.`when`(
+            creatorDonationRankingService.getMemberDonationRanking(
+                creatorId = 20L,
+                offset = 0L,
+                limit = 8L,
+                withDonationCan = true,
+                period = DonationRankingPeriod.WEEKLY
+            )
+        ).thenReturn(
+            listOf(
+                MemberDonationRankingResponse(
+                    userId = 30L,
+                    nickname = "donor",
+                    profileImage = "https://cdn.test/profile.png",
+                    donationCan = 1234
+                )
+            )
+        )
+
+        val rankings = adapter.findTopRankings(
+            creatorId = 20L,
+            period = DonationRankingPeriod.WEEKLY,
+            withDonationCan = true
+        )
+
+        assertEquals(1, rankings.size)
+        assertEquals(30L, rankings[0].userId)
+        assertEquals("donor", rankings[0].nickname)
+        assertEquals("https://cdn.test/profile.png", rankings[0].profileImage)
+        assertEquals(1234, rankings[0].donationCan)
+        Mockito.verify(creatorDonationRankingService).getMemberDonationRanking(
+            creatorId = 20L,
+            offset = 0L,
+            limit = 8L,
+            withDonationCan = true,
+            period = DonationRankingPeriod.WEEKLY
+        )
+        Mockito.verifyNoMoreInteractions(creatorDonationRankingService)
+    }
+}