feat : JD 조회 application 계층 생성, SliceResponse 생성(#63)

Api-Module/src/main/kotlin/com/bamyanggang/apimodule/common/dto/SliceResponse.kt

@@ -0,0 +1,21 @@
+package com.bamyanggang.apimodule.common.dto
+
+import com.bamyanggang.domainmodule.common.pagination.SliceDomain
+
+data class SliceResponse<T>(
+    val content: List<T>,
+    val page: Int,
+    val size: Int,
+    val hasNext: Boolean
+) {
+    companion object {
+        fun <T> from(slice: SliceDomain<T>): SliceResponse<T> {
+            return SliceResponse(
+                content = slice.content,
+                page = slice.pageNumber,
+                size = slice.pageSize,
+                hasNext = slice.hasNext
+            )
+        }
+    }
+}

Api-Module/src/main/kotlin/com/bamyanggang/apimodule/domain/jobDescription/application/dto/GetJobDescriptionInfo.kt

@@ -0,0 +1,20 @@
+package com.bamyanggang.apimodule.domain.jobDescription.application.dto
+
+import com.bamyanggang.domainmodule.domain.jobDescription.enums.WriteStatus
+import java.time.LocalDateTime
+import java.util.UUID
+
+class GetJobDescriptionInfo {
+
+    data class Response(
+        val jobDescriptionId: UUID,
+        val remainingDate: Int,
+        val enterpriseName: String,
+        val title: String,
+        val writeStatus: WriteStatus,
+        val createdAt: LocalDateTime,
+        val startedAt: LocalDateTime,
+        val endedAt: LocalDateTime,
+    )
+
+}

Api-Module/src/main/kotlin/com/bamyanggang/apimodule/domain/jobDescription/application/service/JobDescriptionInfoGetService.kt

@@ -0,0 +1,48 @@
+package com.bamyanggang.apimodule.domain.jobDescription.application.service
+
+import com.bamyanggang.apimodule.common.dto.SliceResponse
+import com.bamyanggang.apimodule.common.getAuthenticationPrincipal
+import com.bamyanggang.apimodule.domain.jobDescription.application.dto.GetJobDescriptionInfo
+import com.bamyanggang.domainmodule.common.pagination.SliceDomain
+import com.bamyanggang.domainmodule.domain.jobDescription.enums.SortType
+import com.bamyanggang.domainmodule.domain.jobDescription.enums.WriteStatus
+import com.bamyanggang.domainmodule.domain.jobDescription.service.ApplyReader
+import com.bamyanggang.domainmodule.domain.jobDescription.service.JobDescriptionReader
+import org.springframework.data.domain.Pageable
+import org.springframework.data.domain.SliceImpl
+import org.springframework.stereotype.Service
+import org.springframework.transaction.annotation.Transactional
+
+
+@Service
+class JobDescriptionInfoGetService(
+    private val jobDescriptionReader: JobDescriptionReader,
+    private val applyReader: ApplyReader
+) {
+
+    @Transactional(readOnly = true)
+    fun getJobDescriptionInfo(pageable: Pageable, writeStatus: WriteStatus?, sortType: SortType?): SliceResponse<GetJobDescriptionInfo.Response> {
+        return getAuthenticationPrincipal().let{ userId ->
+            val jobDescriptions = jobDescriptionReader.readJobDescriptionByUserIdAndSortType(userId, pageable.pageNumber, pageable.pageSize, sortType)
+
+            val jobDescriptionInfoResponses = jobDescriptions.content.map{ jobDescription ->
+                val apply = applyReader.readApplyByJobDescriptionId(jobDescription.id)
+                GetJobDescriptionInfo.Response(
+                    jobDescription.id,
+                    jobDescription.getRemainingDate(),
+                    jobDescription.enterpriseName,
+                    jobDescription.title,
+                    apply?.writeStatus?: WriteStatus.NOT_APPLIED,
+                    jobDescription.createdAt,
+                    jobDescription.startedAt,
+                    jobDescription.endedAt
+                )
+            }
+
+            val jobDescriptionsSlice = SliceDomain(jobDescriptionInfoResponses, jobDescriptions.pageNumber, jobDescriptions.pageSize, jobDescriptions.hasNext)
+            SliceResponse.from(jobDescriptionsSlice)
+        }
+    }
+
+
+}