feat(be): dto 들을 캡슐화 시킴

Author: Mrbaeksang

src/main/kotlin/com/back/koreaTravelGuide/domain/ai/aiChat/controller/AiChatController.kt

@@ -30,7 +30,7 @@ class AiChatController(
     ): ResponseEntity<ApiResponse<List<SessionsResponse>>> {
         val sessions =
             aiChatService.getSessions(userId).map {
-                SessionsResponse(it.id!!, it.sessionTitle)
+                SessionsResponse.from(it)
             }
         return ResponseEntity.ok(ApiResponse("채팅방 목록을 성공적으로 조회했습니다.", sessions))
     }
@@ -40,7 +40,7 @@ class AiChatController(
         @RequestParam userId: Long,
     ): ResponseEntity<ApiResponse<SessionsResponse>> {
         val session = aiChatService.createSession(userId)
-        val response = SessionsResponse(session.id!!, session.sessionTitle)
+        val response = SessionsResponse.from(session)
         return ResponseEntity.ok(ApiResponse("채팅방이 성공적으로 생성되었습니다.", response))
     }
 

src/main/kotlin/com/back/koreaTravelGuide/domain/ai/aiChat/dto/AiChatResponse.kt

@@ -1,6 +1,20 @@
 package com.back.koreaTravelGuide.domain.ai.aiChat.dto
 
+import com.back.koreaTravelGuide.domain.ai.aiChat.entity.AiChatMessage
+
 data class AiChatResponse(
     val userMessage: String,
     val aiMessage: String,
-)
+) {
+    companion object {
+        fun from(
+            userMessage: AiChatMessage,
+            aiMessage: AiChatMessage,
+        ): AiChatResponse {
+            return AiChatResponse(
+                userMessage.content,
+                aiMessage.content,
+            )
+        }
+    }
+}

src/main/kotlin/com/back/koreaTravelGuide/domain/ai/aiChat/dto/SessionMessagesResponse.kt

@@ -1,8 +1,18 @@
 package com.back.koreaTravelGuide.domain.ai.aiChat.dto
 
+import com.back.koreaTravelGuide.domain.ai.aiChat.entity.AiChatMessage
 import com.back.koreaTravelGuide.domain.ai.aiChat.entity.SenderType
 
 data class SessionMessagesResponse(
     val content: String,
     val senderType: SenderType,
-)
+) {
+    companion object {
+        fun from(sessionMessage: AiChatMessage): SessionMessagesResponse {
+            return SessionMessagesResponse(
+                sessionMessage.content,
+                sessionMessage.senderType,
+            )
+        }
+    }
+}

src/main/kotlin/com/back/koreaTravelGuide/domain/ai/aiChat/dto/SessionsResponse.kt

@@ -1,6 +1,16 @@
 package com.back.koreaTravelGuide.domain.ai.aiChat.dto
 
+import com.back.koreaTravelGuide.domain.ai.aiChat.entity.AiChatSession
+
 data class SessionsResponse(
     val sessionId: Long,
     val sessionTitle: String,
-)
+) {
+    companion object {
+        fun from(sessionResponse: AiChatSession) =
+            SessionsResponse(
+                sessionResponse.id!!,
+                sessionResponse.sessionTitle,
+            )
+    }
+}

src/main/kotlin/com/back/koreaTravelGuide/domain/ai/aiChat/dto/UpdateSessionTitleResponse.kt

@@ -1,5 +1,15 @@
 package com.back.koreaTravelGuide.domain.ai.aiChat.dto
 
+import com.back.koreaTravelGuide.domain.ai.aiChat.entity.AiChatSession
+
 data class UpdateSessionTitleResponse(
     val newTitle: String,
-)
+) {
+    companion object {
+        fun from(session: AiChatSession): UpdateSessionTitleResponse {
+            return UpdateSessionTitleResponse(
+                newTitle = session.sessionTitle,
+            )
+        }
+    }
+}