feat(gift): 선물 캔 결제 처리를 추가한다

src/main/kotlin/kr/co/vividnext/sodalive/can/CanService.kt

@@ -120,6 +120,7 @@ class CanService(
 
                     CanUsage.CHAT_QUOTA_PURCHASE -> "캐릭터 톡 이용권 구매"
                     CanUsage.CHAT_ROOM_RESET -> "캐릭터 톡 초기화"
+                    CanUsage.GIFT -> "선물하기"
                 }
 
                 val createdAt = it.createdAt

src/main/kotlin/kr/co/vividnext/sodalive/can/payment/CanPaymentService.kt

@@ -54,7 +54,7 @@ class CanPaymentService(
         communityPost: CreatorCommunity? = null,
         auditionApplicant: AuditionApplicant? = null,
         container: String
-    ) {
+    ): UseCan {
         val member = memberRepository.findByIdOrNull(id = memberId)
             ?: throw SodaException(messageKey = "can.payment.invalid_request_retry")
         val useRewardCan = spendRewardCan(member, needCan, container)
@@ -131,6 +131,8 @@ class CanPaymentService(
             useCan.member = member
             useCan.chatRoomId = chatRoomId
             useCan.characterId = characterId
+        } else if (canUsage == CanUsage.GIFT) {
+            useCan.member = member
         } else {
             throw SodaException(messageKey = "common.error.invalid_request")
         }
@@ -160,6 +162,18 @@ class CanPaymentService(
             useCan,
             paymentGateway = PaymentGateway.APPLE_IAP
         )
+
+        return useCan
+    }
+
+    @Transactional
+    fun spendGiftCan(memberId: Long, needCan: Int, container: String): Long {
+        return spendCan(
+            memberId = memberId,
+            needCan = needCan,
+            canUsage = CanUsage.GIFT,
+            container = container
+        ).id!!
     }
 
     private fun setUseCanCalculate(
@@ -324,6 +338,24 @@ class CanPaymentService(
             roomId = roomId,
             canUsage = CanUsage.LIVE
         ) ?: throw SodaException(messageKey = "can.payment.invalid_reservation")
+        refundUseCan(member, useCan)
+    }
+
+    @Transactional
+    fun refundGiftCan(memberId: Long, useCanId: Long) {
+        val member = memberRepository.findByIdOrNull(memberId)
+            ?: throw SodaException(messageKey = "common.error.invalid_request")
+        val useCan = useCanRepository.findByIdOrNull(useCanId)
+            ?: throw SodaException(messageKey = "common.error.invalid_request")
+
+        if (useCan.member?.id != member.id || useCan.canUsage != CanUsage.GIFT || useCan.isRefund) {
+            throw SodaException(messageKey = "common.error.invalid_request")
+        }
+
+        refundUseCan(member, useCan)
+    }
+
+    private fun refundUseCan(member: Member, useCan: UseCan) {
         useCan.isRefund = true
 
         val useCanCalculates = useCanCalculateRepository.findByUseCanIdAndStatus(useCan.id!!)

src/main/kotlin/kr/co/vividnext/sodalive/can/use/CanUsage.kt

@@ -14,5 +14,6 @@ enum class CanUsage {
     CHAT_MESSAGE_PURCHASE, // 메시지를 통한 구매(이미지 등 다양한 리소스에 공통 적용)
     CHARACTER_IMAGE_PURCHASE, // 캐릭터 이미지 단독 구매
     CHAT_QUOTA_PURCHASE, // 채팅 횟수(쿼터) 충전
-    CHAT_ROOM_RESET // 채팅방 초기화 결제(별도 구분)
+    CHAT_ROOM_RESET, // 채팅방 초기화 결제(별도 구분)
+    GIFT
 }