feat(creator-channel): 커뮤니티 탭 조회 계약을 추가한다

src/main/kotlin/kr/co/vividnext/sodalive/v2/creator/channel/community/domain/CreatorChannelCommunityQueryPolicy.kt

@@ -0,0 +1,52 @@
+package kr.co.vividnext.sodalive.v2.creator.channel.community.domain
+
+import kr.co.vividnext.sodalive.v2.creator.channel.live.domain.CreatorChannelPage
+import org.springframework.stereotype.Component
+
+@Component
+class CreatorChannelCommunityQueryPolicy {
+    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
+    }
+
+    fun maskPaidContent(
+        content: String,
+        price: Int,
+        isCreatorSelf: Boolean,
+        existOrdered: Boolean
+    ): String {
+        if (price <= 0 || isCreatorSelf || existOrdered) {
+            return content
+        }
+
+        val codePointCount = content.codePointCount(0, content.length)
+        val visibleCodePointCount = if (codePointCount > PAID_CONTENT_PREVIEW_CODE_POINTS) {
+            PAID_CONTENT_PREVIEW_CODE_POINTS
+        } else {
+            codePointCount / 2
+        }
+        val endIndex = content.offsetByCodePoints(0, visibleCodePointCount)
+        return content.substring(0, endIndex) + PAID_CONTENT_MASK_SUFFIX
+    }
+
+    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
+        private const val PAID_CONTENT_PREVIEW_CODE_POINTS = 15
+        private const val PAID_CONTENT_MASK_SUFFIX = "..."
+    }
+}

src/main/kotlin/kr/co/vividnext/sodalive/v2/creator/channel/community/domain/CreatorChannelCommunityTab.kt

@@ -0,0 +1,28 @@
+package kr.co.vividnext.sodalive.v2.creator.channel.community.domain
+
+import kr.co.vividnext.sodalive.v2.creator.channel.live.domain.CreatorChannelPage
+import java.time.LocalDateTime
+
+data class CreatorChannelCommunityTab(
+    val communityPostCount: Int,
+    val communityPosts: List<CreatorChannelCommunityPost>,
+    val page: CreatorChannelPage,
+    val hasNext: Boolean
+)
+
+data class CreatorChannelCommunityPost(
+    val postId: Long,
+    val creatorId: Long,
+    val creatorNickname: String,
+    val creatorProfileUrl: String,
+    val imageUrl: String?,
+    val audioUrl: String?,
+    val content: String,
+    val price: Int,
+    val createdAt: LocalDateTime,
+    val existOrdered: Boolean,
+    val isCommentAvailable: Boolean,
+    val likeCount: Int,
+    val commentCount: Int,
+    val isPinned: Boolean
+)

src/main/kotlin/kr/co/vividnext/sodalive/v2/creator/channel/community/port/out/CreatorChannelCommunityQueryPort.kt

@@ -0,0 +1,55 @@
+package kr.co.vividnext.sodalive.v2.creator.channel.community.port.out
+
+import kr.co.vividnext.sodalive.member.MemberRole
+import java.time.LocalDateTime
+
+interface CreatorChannelCommunityQueryPort {
+    fun findCreator(creatorId: Long, viewerId: Long?): CreatorChannelCommunityCreatorRecord?
+
+    fun existsBlockedBetween(viewerId: Long, creatorId: Long): Boolean
+
+    fun countCommunityPosts(
+        creatorId: Long,
+        viewerId: Long,
+        canViewAdultContent: Boolean
+    ): Int
+
+    fun findCommunityPosts(
+        creatorId: Long,
+        viewerId: Long,
+        canViewAdultContent: Boolean,
+        offset: Long,
+        limit: Int
+    ): List<CreatorChannelCommunityPostRecord>
+
+    fun findHomeCommunityPosts(
+        creatorId: Long,
+        viewerId: Long,
+        isPinned: Boolean,
+        canViewAdultContent: Boolean,
+        limit: Int
+    ): List<CreatorChannelCommunityPostRecord>
+}
+
+data class CreatorChannelCommunityCreatorRecord(
+    val creatorId: Long,
+    val role: MemberRole,
+    val nickname: String
+)
+
+data class CreatorChannelCommunityPostRecord(
+    val postId: Long,
+    val creatorId: Long,
+    val creatorNickname: String,
+    val creatorProfilePath: String?,
+    val imagePath: String?,
+    val audioPath: String?,
+    val content: String,
+    val price: Int,
+    val createdAt: LocalDateTime,
+    val existOrdered: Boolean,
+    val isCommentAvailable: Boolean,
+    val likeCount: Int,
+    val commentCount: Int,
+    val isPinned: Boolean
+)