feat(chat-room): 유료 메시지 구매 기능 추가

SodaLive/Sources/Chat/Talk/Room/ChatRoomViewModel.swift

@@ -30,6 +30,9 @@ final class ChatRoomViewModel: ObservableObject {
     @Published var messageText: String = ""
     @Published private(set) var messages: [ServerChatMessage] = []
     
+    @Published var selectedMessage: ServerChatMessage? = nil
+    @Published var selectedMessageIndex: Int = -1
+    
     // MARK: - Private
     private let userRepository = UserRepository()
     private let repository = ChatRoomRepository()
@@ -160,6 +163,54 @@ final class ChatRoomViewModel: ObservableObject {
         .store(in: &subscription)
     }
     
+    func purchaseChatMessage() {
+        guard let selectedMessage = selectedMessage else {
+            return
+        }
+        
+        isLoading = true
+        
+        repository.purchaseMessage(roomId: roomId, messageId: selectedMessage.messageId)
+            .sink { result in
+                switch result {
+                case .finished:
+                    DEBUG_LOG("finish")
+                case .failure(let error):
+                    ERROR_LOG(error.localizedDescription)
+                }
+            } receiveValue: { [weak self] response in
+                let responseData = response.data
+                
+                do {
+                    let jsonDecoder = JSONDecoder()
+                    let decoded = try jsonDecoder.decode(ApiResponse<ServerChatMessage>.self, from: responseData)
+                    
+                    if let data = decoded.data, decoded.success {
+                        self?.messages.insert(data, at: self?.selectedMessageIndex ?? 0)
+                        self?.messages.remove(at: (self?.selectedMessageIndex ?? 0) + 1)
+                        
+                        self?.selectedMessage = nil
+                        self?.selectedMessageIndex = -1
+                    } else {
+                        if let message = decoded.message {
+                            self?.errorMessage = message
+                        } else {
+                            self?.errorMessage = "다시 시도해 주세요.\n계속 같은 문제가 발생할 경우 고객센터로 문의 주시기 바랍니다."
+                        }
+                        
+                        self?.isShowPopup = true
+                    }
+                    
+                    self?.isLoading = false
+                } catch {
+                    self?.isLoading = false
+                    self?.errorMessage = "다시 시도해 주세요.\n계속 같은 문제가 발생할 경우 고객센터로 문의 주시기 바랍니다."
+                    self?.isShowPopup = true
+                }
+            }
+            .store(in: &subscription)
+    }
+    
     func purchaseChatQuota() {
         
     }
@@ -178,8 +229,6 @@ final class ChatRoomViewModel: ObservableObject {
             } receiveValue: { [weak self] response in
                 let responseData = response.data
                 
-                DEBUG_LOG(String(data: responseData, encoding: .utf8) ?? "")
-                
                 do {
                     let jsonDecoder = JSONDecoder()
                     let decoded = try jsonDecoder.decode(ApiResponse<ChatQuotaStatusResponse>.self, from: responseData)