feat(creator-channel): FanTalk 탭 도메인 계약을 추가한다

src/main/kotlin/kr/co/vividnext/sodalive/v2/creator/channel/fantalk/domain/CreatorChannelFanTalkQueryPolicy.kt

@@ -0,0 +1,30 @@
+package kr.co.vividnext.sodalive.v2.creator.channel.fantalk.domain
+
+import kr.co.vividnext.sodalive.v2.creator.channel.live.domain.CreatorChannelPage
+import org.springframework.stereotype.Component
+
+@Component
+class CreatorChannelFanTalkQueryPolicy {
+    fun createPage(page: Int?, size: Int?): CreatorChannelPage {
+        return CreatorChannelPage(
+            page = page?.coerceAtLeast(MIN_PAGE) ?: DEFAULT_PAGE,
+            size = size?.coerceIn(MIN_PAGE_SIZE, MAX_PAGE_SIZE) ?: DEFAULT_PAGE_SIZE
+        )
+    }
+
+    fun <T> limitItems(fetched: List<T>, page: CreatorChannelPage): List<T> {
+        return fetched.take(page.size)
+    }
+
+    fun hasNext(fetched: List<*>, page: CreatorChannelPage): Boolean {
+        return fetched.size > page.size
+    }
+
+    companion object {
+        private const val DEFAULT_PAGE = 0
+        private const val DEFAULT_PAGE_SIZE = 20
+        private const val MIN_PAGE = 0
+        private const val MIN_PAGE_SIZE = 20
+        private const val MAX_PAGE_SIZE = 50
+    }
+}

src/main/kotlin/kr/co/vividnext/sodalive/v2/creator/channel/fantalk/domain/CreatorChannelFanTalkTab.kt

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+package kr.co.vividnext.sodalive.v2.creator.channel.fantalk.domain
+
+import kr.co.vividnext.sodalive.v2.creator.channel.live.domain.CreatorChannelPage
+import java.time.LocalDateTime
+
+data class CreatorChannelFanTalkTab(
+    val fanTalkCount: Int,
+    val fanTalks: List<CreatorChannelFanTalk>,
+    val page: CreatorChannelPage,
+    val hasNext: Boolean
+)
+
+data class CreatorChannelFanTalk(
+    val fanTalkId: Long,
+    val writerId: Long,
+    val writerNickname: String,
+    val writerProfileImageUrl: String,
+    val content: String,
+    val createdAt: LocalDateTime,
+    val creatorReplies: List<CreatorChannelFanTalkReply>
+)
+
+data class CreatorChannelFanTalkReply(
+    val fanTalkId: Long,
+    val writerId: Long,
+    val writerNickname: String,
+    val writerProfileImageUrl: String,
+    val content: String,
+    val createdAt: LocalDateTime
+)

src/main/kotlin/kr/co/vividnext/sodalive/v2/creator/channel/fantalk/port/out/CreatorChannelFanTalkQueryPort.kt

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+package kr.co.vividnext.sodalive.v2.creator.channel.fantalk.port.out
+
+import kr.co.vividnext.sodalive.member.MemberRole
+import java.time.LocalDateTime
+
+interface CreatorChannelFanTalkQueryPort {
+    fun findCreator(creatorId: Long, viewerId: Long?): CreatorChannelFanTalkCreatorRecord?
+
+    fun existsBlockedBetween(viewerId: Long, creatorId: Long): Boolean
+
+    fun countFanTalks(creatorId: Long, viewerId: Long): Int
+
+    fun findFanTalks(
+        creatorId: Long,
+        viewerId: Long,
+        offset: Long,
+        limit: Int
+    ): List<CreatorChannelFanTalkRecord>
+
+    fun findCreatorReplies(
+        creatorId: Long,
+        parentFanTalkIds: List<Long>
+    ): List<CreatorChannelFanTalkReplyRecord>
+}
+
+data class CreatorChannelFanTalkCreatorRecord(
+    val creatorId: Long,
+    val role: MemberRole,
+    val nickname: String
+)
+
+data class CreatorChannelFanTalkRecord(
+    val fanTalkId: Long,
+    val writerId: Long,
+    val writerNickname: String,
+    val writerProfileImagePath: String?,
+    val content: String,
+    val createdAt: LocalDateTime
+)
+
+data class CreatorChannelFanTalkReplyRecord(
+    val fanTalkId: Long,
+    val parentFanTalkId: Long,
+    val writerId: Long,
+    val writerNickname: String,
+    val writerProfileImagePath: String?,
+    val content: String,
+    val createdAt: LocalDateTime
+)