feat(#53): converted Like Service java to kotlin

archive-application/src/main/kotlin/site/archive/service/like/LikeService.kt

@@ -0,0 +1,49 @@
+package site.archive.service.like
+
+import org.springframework.stereotype.Service
+import org.springframework.transaction.annotation.Transactional
+import site.archive.common.exception.common.ResourceNotFoundException
+import site.archive.domain.common.BaseTimeEntity
+import site.archive.domain.like.Like
+import site.archive.domain.like.LikeRepository
+
+@Service
+@Transactional(readOnly = true)
+class LikeService(private val likeRepository: LikeRepository) {
+
+    @Transactional
+    fun save(userId: Long, archiveId: Long) {
+        likeRepository.findByUserIdAndArchiveId(userId, archiveId)
+            .ifPresentOrElse(BaseTimeEntity::softDeleteCancel) { likeRepository.save(Like.of(userId, archiveId)) }
+    }
+
+    @Transactional
+    fun save(userId: Long, archiveIds: List<Long>) {
+        archiveIds.forEach {
+            likeRepository.findByUserIdAndArchiveId(userId, it)
+                .ifPresentOrElse(BaseTimeEntity::softDeleteCancel) { likeRepository.save(Like.of(userId, it)) }
+        }
+    }
+
+    @Transactional
+    fun delete(userId: Long, archiveId: Long) {
+        likeRepository.findByUserIdAndArchiveId(userId, archiveId)
+            .ifPresentOrElse(likeRepository::delete) { throw ResourceNotFoundException("조건에 맞는 Like 데이터가 없습니다") }
+    }
+
+    @Transactional
+    fun delete(userId: Long, archiveIds: List<Long>) {
+        archiveIds.forEach {
+            likeRepository.findByUserIdAndArchiveId(userId, it)
+                .ifPresentOrElse(likeRepository::delete) { throw ResourceNotFoundException("조건에 맞는 Like 데이터가 없습니다") }
+        }
+    }
+
+    fun likeArchiveIds(userId: Long): List<Long> {
+        return likeRepository.findAllByUserId(userId)
+            .filter { !it.isDeleted }
+            .map { it.archive.id }
+            .toList()
+    }
+
+}