캔 유효성 검사

- 쿠폰 유효기간과 활성화 쿠폰 검사 추가

src/main/kotlin/kr/co/vividnext/sodalive/can/coupon/CanCouponIssueService.kt

@@ -2,6 +2,7 @@ package kr.co.vividnext.sodalive.can.coupon
 
 import kr.co.vividnext.sodalive.common.SodaException
 import org.springframework.stereotype.Service
+import java.time.LocalDateTime
 
 @Service
 class CanCouponIssueService(private val couponNumberRepository: CanCouponNumberRepository) {
@@ -14,6 +15,8 @@ class CanCouponIssueService(private val couponNumberRepository: CanCouponNumberR
                 throw SodaException("해당 쿠폰은 1회만 충전이 가능합니다.")
             }
         }
+
+        validateCoupon(canCouponNumber.canCoupon!!)
     }
 
     private fun checkCanCouponNumber(couponNumber: String): CanCouponNumber {
@@ -29,6 +32,16 @@ class CanCouponIssueService(private val couponNumberRepository: CanCouponNumberR
 
     private fun isMultipleUse(canCouponNumber: CanCouponNumber) = canCouponNumber.canCoupon!!.isMultipleUse
 
+    private fun validateCoupon(canCoupon: CanCoupon) {
+        if (canCoupon.validity < LocalDateTime.now()) {
+            throw SodaException("유효기간이 경과된 쿠폰입니다.")
+        }
+
+        if (!canCoupon.isActive) {
+            throw SodaException("이용이 불가능한 쿠폰입니다.")
+        }
+    }
+
     fun checkAnyChanges(request: ModifyCanCouponRequest) {
         if (request.isMultipleUse == null && request.isActive == null && request.validity == null) {
             throw SodaException("변경사항이 없습니다.")