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

archive-application/src/main/kotlin/site/archive/service/report/ReportService.kt

@@ -0,0 +1,33 @@
+package site.archive.service.report
+
+import org.springframework.stereotype.Service
+import org.springframework.transaction.annotation.Transactional
+import site.archive.domain.common.BaseTimeEntity
+import site.archive.domain.report.Report
+import site.archive.domain.report.ReportRepository
+
+@Service
+@Transactional(readOnly = true)
+class ReportService(private val reportRepository: ReportRepository) {
+
+    fun isReportedBy(archiveId: Long, userId: Long): Boolean {
+        return reportRepository.findByArchiveIdAndUserId(archiveId, userId)
+            .filter { !it.isDeleted }
+            .isPresent
+    }
+
+    @Transactional
+    fun reportArchive(archiveId: Long, userId: Long, reason: String) {
+        val report = reportRepository.findByArchiveIdAndUserId(archiveId, userId)
+            .orElseGet { Report.of(reason, archiveId, userId) }
+        report.softDeleteCancel()
+        reportRepository.save(report)
+    }
+
+    @Transactional
+    fun cancelReportArchive(archiveId: Long, userId: Long) {
+        reportRepository.findByArchiveIdAndUserId(archiveId, userId)
+            .ifPresent(BaseTimeEntity::softDelete)
+    }
+
+}