feat(content-ranking): 오디오 랭킹 응답 계약을 추가한다

src/main/kotlin/kr/co/vividnext/sodalive/v2/api/content/ranking/dto/AudioRankingResponse.kt

@@ -0,0 +1,47 @@
+package kr.co.vividnext.sodalive.v2.api.content.ranking.dto
+
+import com.fasterxml.jackson.annotation.JsonProperty
+import kr.co.vividnext.sodalive.v2.content.ranking.domain.AudioRanking
+import kr.co.vividnext.sodalive.v2.content.ranking.domain.AudioRankingItem
+import kr.co.vividnext.sodalive.v2.content.ranking.domain.AudioRankingType
+
+data class AudioRankingResponse(
+    val showRankChange: Boolean,
+    val type: AudioRankingType,
+    val items: List<AudioRankingItemResponse>
+) {
+    companion object {
+        fun from(ranking: AudioRanking): AudioRankingResponse {
+            return AudioRankingResponse(
+                showRankChange = ranking.showRankChange,
+                type = ranking.type,
+                items = ranking.items.map(AudioRankingItemResponse::from)
+            )
+        }
+    }
+}
+
+data class AudioRankingItemResponse(
+    val contentId: Long,
+    val title: String,
+    val creatorNickname: String,
+    val rank: Int,
+    val rankChange: Int?,
+    @JsonProperty("isNew")
+    val isNew: Boolean,
+    val coverImageUrl: String?
+) {
+    companion object {
+        fun from(item: AudioRankingItem): AudioRankingItemResponse {
+            return AudioRankingItemResponse(
+                contentId = item.contentId,
+                title = item.title,
+                creatorNickname = item.creatorNickname,
+                rank = item.rank,
+                rankChange = item.rankChange,
+                isNew = item.isNew,
+                coverImageUrl = item.coverImageUrl
+            )
+        }
+    }
+}

src/main/kotlin/kr/co/vividnext/sodalive/v2/content/ranking/domain/AudioRanking.kt

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+package kr.co.vividnext.sodalive.v2.content.ranking.domain
+
+data class AudioRanking(
+    val showRankChange: Boolean,
+    val type: AudioRankingType,
+    val items: List<AudioRankingItem>
+)
+
+data class AudioRankingItem(
+    val contentId: Long,
+    val title: String,
+    val creatorNickname: String,
+    val rank: Int,
+    val rankChange: Int?,
+    val isNew: Boolean,
+    val coverImageUrl: String?
+)

src/main/kotlin/kr/co/vividnext/sodalive/v2/content/ranking/domain/AudioRankingType.kt

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+package kr.co.vividnext.sodalive.v2.content.ranking.domain
+
+enum class AudioRankingType {
+    WEEKLY_POPULAR,
+    RISING,
+    REVENUE,
+    SALES_COUNT,
+    COMMENT_COUNT,
+    LIKE_COUNT
+}