feat(home): 크리에이터 랭킹 응답 매핑을 추가한다

app/src/main/java/kr/co/vividnext/sodalive/v2/main/home/data/HomeCreatorRankingApi.kt

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+package kr.co.vividnext.sodalive.v2.main.home.data
+
+import io.reactivex.rxjava3.core.Single
+import kr.co.vividnext.sodalive.common.ApiResponse
+import retrofit2.http.GET
+import retrofit2.http.Header
+
+interface HomeCreatorRankingApi {
+    @GET("/api/v2/home/rankings/creators")
+    fun getCreatorRankings(
+        @Header("Authorization") authHeader: String
+    ): Single<ApiResponse<HomeCreatorRankingResponse>>
+}

app/src/main/java/kr/co/vividnext/sodalive/v2/main/home/data/HomeCreatorRankingModels.kt

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+package kr.co.vividnext.sodalive.v2.main.home.data
+
+import androidx.annotation.Keep
+import com.google.gson.annotations.SerializedName
+
+@Keep
+data class HomeCreatorRankingResponse(
+    @SerializedName("showRankChange") val showRankChange: Boolean,
+    @SerializedName("items") val items: List<HomeCreatorRankingItemResponse>
+)
+
+@Keep
+data class HomeCreatorRankingItemResponse(
+    @SerializedName("rank") val rank: Int,
+    @SerializedName("rankChange") val rankChange: Int?,
+    @SerializedName("isNew") val isNew: Boolean,
+    @SerializedName("creatorId") val creatorId: Long,
+    @SerializedName("nickname") val nickname: String,
+    @SerializedName("profileImageUrl") val profileImageUrl: String
+)

app/src/main/java/kr/co/vividnext/sodalive/v2/main/home/data/HomeCreatorRankingRepository.kt

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+package kr.co.vividnext.sodalive.v2.main.home.data
+
+class HomeCreatorRankingRepository(private val api: HomeCreatorRankingApi) {
+    fun getCreatorRankings(token: String) = api.getCreatorRankings(authHeader = token)
+}

app/src/main/java/kr/co/vividnext/sodalive/v2/main/home/model/HomeCreatorRankingMappers.kt

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+package kr.co.vividnext.sodalive.v2.main.home.model
+
+import kr.co.vividnext.sodalive.v2.main.home.data.HomeCreatorRankingItemResponse
+import kr.co.vividnext.sodalive.v2.main.home.data.HomeCreatorRankingResponse
+import kr.co.vividnext.sodalive.v2.widget.creatorranking.CreatorRankingItem
+import kr.co.vividnext.sodalive.v2.widget.ranking.RankingChangeType
+import kr.co.vividnext.sodalive.v2.widget.ranking.RankingChangeType.Decrease
+import kr.co.vividnext.sodalive.v2.widget.ranking.RankingChangeType.Increase
+import kr.co.vividnext.sodalive.v2.widget.ranking.RankingChangeType.New
+import kr.co.vividnext.sodalive.v2.widget.ranking.RankingChangeType.Stay
+import kotlin.math.abs
+
+fun HomeCreatorRankingResponse.toCreatorRankingItems(): List<CreatorRankingItem> = items
+    .filter { it.rank >= 1 }
+    .sortedBy { it.rank }
+    .map { it.toCreatorRankingItem(showRankChange) }
+
+private fun HomeCreatorRankingItemResponse.toCreatorRankingItem(showRankChange: Boolean): CreatorRankingItem {
+    val changeType = toRankingChangeType()
+    return CreatorRankingItem(
+        creatorId = creatorId,
+        rank = rank,
+        rankChangeType = changeType,
+        rankChangeAmount = if (changeType == New) 0 else abs(rankChange ?: 0),
+        creatorName = nickname,
+        imageUrl = profileImageUrl,
+        isBlocked = creatorId == 0L,
+        showRankChange = showRankChange
+    )
+}
+
+private fun HomeCreatorRankingItemResponse.toRankingChangeType(): RankingChangeType = when {
+    isNew -> New
+    rankChange == null || rankChange == 0 -> Stay
+    rankChange > 0 -> Increase
+    else -> Decrease
+}