feat(creator-channel): FanTalk 탭 endpoint를 추가한다

src/main/kotlin/kr/co/vividnext/sodalive/v2/api/creator/channel/fantalk/adapter/in/web/CreatorChannelFanTalkController.kt

@@ -0,0 +1,39 @@
+package kr.co.vividnext.sodalive.v2.api.creator.channel.fantalk.adapter.`in`.web
+
+import kr.co.vividnext.sodalive.common.ApiResponse
+import kr.co.vividnext.sodalive.common.SodaException
+import kr.co.vividnext.sodalive.member.Member
+import kr.co.vividnext.sodalive.v2.api.creator.channel.fantalk.application.CreatorChannelFanTalkFacade
+import org.springframework.security.core.annotation.AuthenticationPrincipal
+import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.PathVariable
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RequestParam
+import org.springframework.web.bind.annotation.RestController
+
+@RestController
+@RequestMapping("/api/v2/creator-channels")
+class CreatorChannelFanTalkController(
+    private val creatorChannelFanTalkFacade: CreatorChannelFanTalkFacade
+) {
+    @GetMapping("/{creatorId}/fan-talks")
+    fun getFanTalkTab(
+        @PathVariable creatorId: Long,
+        @RequestParam(required = false) page: Int?,
+        @RequestParam(required = false) size: Int?,
+        @AuthenticationPrincipal(expression = "#this == 'anonymousUser' ? null : member") member: Member?
+    ) = run {
+        ApiResponse.ok(
+            creatorChannelFanTalkFacade.getFanTalkTab(
+                creatorId = creatorId,
+                viewer = requireMember(member),
+                page = page,
+                size = size
+            )
+        )
+    }
+
+    private fun requireMember(member: Member?): Member {
+        return member ?: throw SodaException(messageKey = "common.error.bad_credentials")
+    }
+}

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/creator/channel/fantalk/adapter/in/web/CreatorChannelFanTalkControllerTest.kt

@@ -0,0 +1,166 @@
+package kr.co.vividnext.sodalive.v2.api.creator.channel.fantalk.adapter.`in`.web
+
+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.Member
+import kr.co.vividnext.sodalive.member.MemberAdapter
+import kr.co.vividnext.sodalive.member.MemberRole
+import kr.co.vividnext.sodalive.v2.api.creator.channel.fantalk.application.CreatorChannelFanTalkFacade
+import kr.co.vividnext.sodalive.v2.api.creator.channel.fantalk.dto.CreatorChannelFanTalkReplyResponse
+import kr.co.vividnext.sodalive.v2.api.creator.channel.fantalk.dto.CreatorChannelFanTalkResponse
+import kr.co.vividnext.sodalive.v2.api.creator.channel.fantalk.dto.CreatorChannelFanTalkTabResponse
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Test
+import org.mockito.Mockito
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest
+import org.springframework.boot.test.context.TestConfiguration
+import org.springframework.boot.test.mock.mockito.MockBean
+import org.springframework.context.annotation.Bean
+import org.springframework.context.annotation.Import
+import org.springframework.http.HttpStatus
+import org.springframework.security.config.annotation.web.builders.HttpSecurity
+import org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.anonymous
+import org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.user
+import org.springframework.security.web.SecurityFilterChain
+import org.springframework.security.web.authentication.HttpStatusEntryPoint
+import org.springframework.test.web.servlet.MockMvc
+import org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get
+import org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath
+import org.springframework.test.web.servlet.result.MockMvcResultMatchers.status
+import java.time.LocalDateTime
+import javax.servlet.http.HttpServletResponse
+
+@WebMvcTest(CreatorChannelFanTalkController::class)
+@Import(CreatorChannelFanTalkControllerTest.TestSecurityConfig::class)
+class CreatorChannelFanTalkControllerTest @Autowired constructor(
+    private val mockMvc: MockMvc
+) {
+    @MockBean
+    private lateinit var facade: CreatorChannelFanTalkFacade
+
+    @MockBean
+    private lateinit var countryContext: CountryContext
+
+    @MockBean
+    private lateinit var langContext: LangContext
+
+    @MockBean
+    private lateinit var sodaMessageSource: SodaMessageSource
+
+    @TestConfiguration
+    class TestSecurityConfig {
+        @Bean
+        fun securityFilterChain(http: HttpSecurity): SecurityFilterChain {
+            return http
+                .csrf().disable()
+                .authorizeRequests()
+                .anyRequest().authenticated()
+                .and()
+                .exceptionHandling()
+                .authenticationEntryPoint(HttpStatusEntryPoint(HttpStatus.UNAUTHORIZED))
+                .accessDeniedHandler { _, response, _ -> response.sendError(HttpServletResponse.SC_FORBIDDEN) }
+                .and()
+                .build()
+        }
+    }
+
+    @Test
+    @DisplayName("크리에이터 채널 FanTalk 탭 조회는 비회원 요청을 거부한다")
+    fun shouldRejectAnonymousCreatorChannelFanTalkRequest() {
+        mockMvc.perform(
+            get("/api/v2/creator-channels/1/fan-talks")
+                .with(anonymous())
+        )
+            .andExpect(status().isUnauthorized)
+    }
+
+    @Test
+    @DisplayName("크리에이터 채널 FanTalk 탭 조회는 query parameter를 facade에 전달하고 성공 응답을 반환한다")
+    fun shouldReturnCreatorChannelFanTalkTabForAuthenticatedMember() {
+        val viewer = createMember(id = 10L)
+        Mockito.doReturn(createResponse(page = 1, size = 20)).`when`(facade).getFanTalkTab(
+            eqValue(1L),
+            eqValue(viewer),
+            eqValue(1),
+            eqValue(20),
+            anyValue(LocalDateTime.now())
+        )
+
+        mockMvc.perform(
+            get("/api/v2/creator-channels/1/fan-talks")
+                .param("page", "1")
+                .param("size", "20")
+                .with(user(MemberAdapter(viewer)))
+        )
+            .andExpect(status().isOk)
+            .andExpect(jsonPath("$.success").value(true))
+            .andExpect(jsonPath("$.data.fanTalkCount").value(2))
+            .andExpect(jsonPath("$.data.fanTalks").isArray)
+            .andExpect(jsonPath("$.data.fanTalks[0].fanTalkId").value(101))
+            .andExpect(jsonPath("$.data.fanTalks[0].writerId").value(10))
+            .andExpect(jsonPath("$.data.fanTalks[0].writerProfileImageUrl").value("https://cdn.test/fan.png"))
+            .andExpect(jsonPath("$.data.fanTalks[0].creatorReplies[0].fanTalkId").value(201))
+            .andExpect(jsonPath("$.data.page").value(1))
+            .andExpect(jsonPath("$.data.size").value(20))
+            .andExpect(jsonPath("$.data.hasNext").value(false))
+
+        Mockito.verify(facade).getFanTalkTab(
+            eqValue(1L),
+            eqValue(viewer),
+            eqValue(1),
+            eqValue(20),
+            anyValue(LocalDateTime.now())
+        )
+    }
+
+    private fun <T> eqValue(value: T): T {
+        return Mockito.eq(value) ?: value
+    }
+
+    private fun <T> anyValue(fallback: T): T {
+        return Mockito.any<T>() ?: fallback
+    }
+
+    private fun createMember(id: Long): Member {
+        return Member(
+            email = "viewer$id@test.com",
+            password = "password",
+            nickname = "viewer$id",
+            role = MemberRole.USER
+        ).apply { this.id = id }
+    }
+
+    private fun createResponse(
+        page: Int = 0,
+        size: Int = 20
+    ): CreatorChannelFanTalkTabResponse {
+        return CreatorChannelFanTalkTabResponse(
+            fanTalkCount = 2,
+            fanTalks = listOf(
+                CreatorChannelFanTalkResponse(
+                    fanTalkId = 101L,
+                    writerId = 10L,
+                    writerNickname = "fan",
+                    writerProfileImageUrl = "https://cdn.test/fan.png",
+                    content = "fan talk",
+                    createdAtUtc = "2026-06-21T03:30:00Z",
+                    creatorReplies = listOf(
+                        CreatorChannelFanTalkReplyResponse(
+                            fanTalkId = 201L,
+                            writerId = 1L,
+                            writerNickname = "creator",
+                            writerProfileImageUrl = "https://cdn.test/creator.png",
+                            content = "creator reply",
+                            createdAtUtc = "2026-06-21T03:35:00Z"
+                        )
+                    )
+                )
+            ),
+            page = page,
+            size = size,
+            hasNext = false
+        )
+    }
+}