fix(creator): 팬Talk 답글 수정을 확인한다

SodaLive/Sources/V2/CreatorChannel/FanTalk/Components/CreatorChannelFanTalkListItem.swift

@@ -20,7 +20,7 @@ struct CreatorChannelFanTalkListItem: View {
                     .frame(maxWidth: .infinity, alignment: .leading)
                     .padding(.leading, 50)
                     .background(alignment: .topLeading) {
-                        if fanTalk.creatorReplies.isEmpty == false {
+                        if fanTalk.latestCreatorReply != nil {
                             GeometryReader { proxy in
                                 CreatorChannelFanTalkReplyConnector()
                                     .stroke(Color.gray800, style: StrokeStyle(lineWidth: 2, lineCap: .round, lineJoin: .round))
@@ -29,7 +29,7 @@ struct CreatorChannelFanTalkListItem: View {
                         }
                     }
 
-                if fanTalk.creatorReplies.isEmpty == false {
+                if fanTalk.latestCreatorReply != nil {
                     replies
                         .padding(.leading, 50)
                 }
@@ -95,7 +95,7 @@ struct CreatorChannelFanTalkListItem: View {
 
     private var replies: some View {
         VStack(alignment: .leading, spacing: SodaSpacing.s8) {
-            ForEach(fanTalk.creatorReplies) { reply in
+            if let reply = fanTalk.latestCreatorReply {
                 replyCard(reply)
             }
         }

SodaLive/Sources/V2/CreatorChannel/FanTalk/Models/CreatorChannelFanTalkTabResponse.swift

@@ -18,6 +18,21 @@ struct CreatorChannelFanTalkItemResponse: Decodable, Identifiable {
     let creatorReplies: [CreatorChannelFanTalkReplyResponse]
 
     var id: Int { fanTalkId }
+
+    var latestCreatorReply: CreatorChannelFanTalkReplyResponse? {
+        creatorReplies.max { lhs, rhs in
+            switch (DateParser.parse(lhs.createdAtUtc), DateParser.parse(rhs.createdAtUtc)) {
+            case let (lhsDate?, rhsDate?):
+                return lhsDate < rhsDate
+            case (nil, _?):
+                return true
+            case (_?, nil):
+                return false
+            case (nil, nil):
+                return lhs.createdAtUtc < rhs.createdAtUtc
+            }
+        }
+    }
 }
 
 struct CreatorChannelFanTalkReplyResponse: Decodable, Identifiable {