패키지, 상품 API 구현

src/main/kotlin/com/doki/productpackage/application/PackageCommandService.kt → src/main/kotlin/com/doki/productpackage/pkg/application/PackageCommandService.kt

@@ -1,10 +1,10 @@
-package com.doki.productpackage.application
+package com.doki.productpackage.pkg.application
 
 import com.doki.productpackage.product.domain.Product
 import com.doki.productpackage.product.domain.ProductRepository
-import com.doki.productpackage.application.dto.CreatePackageCommand
-import com.doki.productpackage.domain.Package
-import com.doki.productpackage.infrastructure.PackageCommandRepository
+import com.doki.productpackage.pkg.application.dto.CreatePackageCommand
+import com.doki.productpackage.pkg.domain.Package
+import com.doki.productpackage.pkg.infrastructure.PackageCommandRepository
 import org.springframework.stereotype.Service
 import org.springframework.transaction.annotation.Transactional
 

src/main/kotlin/com/doki/productpackage/application/PackageQueryService.kt → src/main/kotlin/com/doki/productpackage/pkg/application/PackageQueryService.kt

@@ -1,8 +1,8 @@
-package com.doki.productpackage.application
+package com.doki.productpackage.pkg.application
 
-import com.doki.productpackage.domain.PackageRepository
-import com.doki.productpackage.domain.dto.PackagePagingQueryResponse
-import com.doki.productpackage.domain.dto.PackageSpecificResponse
+import com.doki.productpackage.pkg.domain.PackageRepository
+import com.doki.productpackage.pkg.domain.dto.PackagePagingQueryResponse
+import com.doki.productpackage.pkg.domain.dto.PackageSpecificResponse
 import org.springframework.stereotype.Service
 import org.springframework.transaction.annotation.Transactional
 
@@ -15,8 +15,16 @@ class PackageQueryService(
     private val packageRepository: PackageRepository,
 ) {
 
-    fun findPackagesByPaging(): List<PackagePagingQueryResponse> =
-        packageRepository.findPackagesByPaging()
+    fun findPackagesByNoOffset(
+        lastId: Long?,
+        size: Int,
+        tagName: String?,
+    ): List<PackagePagingQueryResponse> =
+        packageRepository.findPackagesByNoOffset(
+            lastId = lastId,
+            size = size,
+            tagName = tagName
+        )
 
     fun findPackageSpecificById(packageId: Long): PackageSpecificResponse {
         return packageRepository.findPackageSpecificById(packageId)

src/main/kotlin/com/doki/productpackage/application/dto/CreatePackageCommand.kt → src/main/kotlin/com/doki/productpackage/pkg/application/dto/CreatePackageCommand.kt

@@ -1,4 +1,4 @@
-package com.doki.productpackage.application.dto
+package com.doki.productpackage.pkg.application.dto
 
 import java.time.LocalDate
 

src/main/kotlin/com/doki/productpackage/pkg/application/dto/PackageCreatedResponse.kt

@@ -0,0 +1,8 @@
+package com.doki.productpackage.pkg.application.dto
+
+import io.swagger.v3.oas.annotations.media.Schema
+
+data class PackageCreatedResponse(
+    @field:Schema(description = "생성된 패키지 ID", example = "1")
+    val id: Long,
+)

src/main/kotlin/com/doki/productpackage/domain/Package.kt → src/main/kotlin/com/doki/productpackage/pkg/domain/Package.kt

@@ -1,4 +1,4 @@
-package com.doki.productpackage.domain
+package com.doki.productpackage.pkg.domain
 
 import com.doki.global.BaseEntity
 import com.doki.productpackage.product.domain.Product

src/main/kotlin/com/doki/productpackage/domain/PackageProduct.kt → src/main/kotlin/com/doki/productpackage/pkg/domain/PackageProduct.kt

@@ -1,4 +1,4 @@
-package com.doki.productpackage.domain
+package com.doki.productpackage.pkg.domain
 
 import com.doki.global.BaseEntity
 import com.doki.productpackage.product.domain.Product

src/main/kotlin/com/doki/productpackage/pkg/domain/PackageRepository.kt

@@ -0,0 +1,21 @@
+package com.doki.productpackage.pkg.domain
+
+import com.doki.productpackage.pkg.domain.dto.PackagePagingQueryResponse
+import com.doki.productpackage.pkg.domain.dto.PackageSpecificResponse
+
+interface PackageRepository {
+
+    fun findPackagesByNoOffset(
+        lastId: Long?,
+        size: Int,
+        tagName: String?,
+    ): List<PackagePagingQueryResponse>
+
+    fun findPackageSpecificById(packageId: Long): PackageSpecificResponse?
+
+    fun findById(packageId: Long): Package?
+
+    fun existsById(packageId: Long): Boolean
+
+    fun getReferenceById(packageId: Long): Package
+}

src/main/kotlin/com/doki/productpackage/domain/PackageTag.kt → src/main/kotlin/com/doki/productpackage/pkg/domain/PackageTag.kt

@@ -1,4 +1,4 @@
-package com.doki.productpackage.domain
+package com.doki.productpackage.pkg.domain
 
 import com.doki.global.BaseEntity
 import jakarta.persistence.Column
@@ -11,12 +11,17 @@ import jakarta.persistence.JoinColumn
 import jakarta.persistence.ManyToOne
 import jakarta.persistence.Table
 import jakarta.persistence.UniqueConstraint
+import jakarta.persistence.Index
 
 @Entity
 @Table(
     name = "package_tag",
     uniqueConstraints = [
         UniqueConstraint(name = "uk_package_tag", columnNames = ["package_id", "tag_name"])
+    ],
+    indexes = [
+        Index(name = "idx_package_tag_tag_name", columnList = "tag_name"),
+        Index(name = "idx_package_tag_package_id", columnList = "package_id"),
     ]
 )
 class PackageTag(

src/main/kotlin/com/doki/productpackage/pkg/domain/dto/PackagePagingQueryResponse.kt

@@ -0,0 +1,40 @@
+package com.doki.productpackage.pkg.domain.dto
+
+import com.doki.productpackage.pkg.domain.Package
+import io.swagger.v3.oas.annotations.media.Schema
+import java.math.BigDecimal
+
+data class PackagePagingQueryResponse(
+    @field:Schema(description = "패키지 ID", example = "1")
+    val id: Long,
+
+    @field:Schema(description = "패키지명", example = "뷰티 올인원 패키지")
+    val name: String,
+
+    @field:Schema(description = "패키지 설명", example = "머리와 피부 관리 올인원 패키지")
+    val description: String,
+
+    @field:Schema(description = "최저가", example = "100000.00")
+    val minPrice: BigDecimal,
+
+    @field:Schema(description = "총합 가격", example = "300000.00")
+    val totalPrice: BigDecimal,
+
+    @field:Schema(description = "태그 목록", example = "[\"뷰티\",\"헤어\"]")
+    val tagNames: List<String>,
+) {
+    companion object {
+        fun from(
+            pkg: Package,
+            tagNames: List<String> = pkg.packageTags.map { it.tagName }.distinct(),
+        ): PackagePagingQueryResponse =
+            PackagePagingQueryResponse(
+                id = pkg.id,
+                name = pkg.name,
+                description = pkg.description,
+                minPrice = pkg.minPrice,
+                totalPrice = pkg.totalPrice,
+                tagNames = tagNames
+            )
+    }
+}

src/main/kotlin/com/doki/productpackage/pkg/domain/dto/PackageSpecificResponse.kt

@@ -0,0 +1,98 @@
+package com.doki.productpackage.pkg.domain.dto
+
+import com.doki.productpackage.pkg.domain.Package
+import com.doki.productpackage.product.domain.Product
+import io.swagger.v3.oas.annotations.media.Schema
+import java.math.BigDecimal
+import java.time.LocalDate
+import java.time.LocalTime
+
+data class PackageSpecificResponse(
+    @field:Schema(description = "패키지 ID", example = "1")
+    val id: Long,
+
+    @field:Schema(description = "패키지명", example = "스파 + 디너 패키지")
+    val name: String,
+
+    @field:Schema(description = "패키지 설명", example = "스파 이용권과 디너 코스를 포함합니다.")
+    val description: String,
+
+    @field:Schema(description = "포함 상품 목록")
+    val products: List<PackageProductResponse>,
+
+    @field:Schema(description = "태그 목록", example = "[\"스파\",\"맛집\"]")
+    val tagNames: List<String>,
+
+    @field:Schema(description = "예약 시작 가능 날짜", example = "2025-01-01")
+    val slotStartDate: LocalDate?,
+
+    @field:Schema(description = "예약 마감 날짜", example = "2025-01-07")
+    val slotEndDate: LocalDate?,
+
+    @field:Schema(description = "예약 슬롯 시작 시간", example = "09:00:00")
+    val slotStartTime: LocalTime?,
+
+    @field:Schema(description = "예약 슬롯 종료 시간", example = "16:00:00")
+    val slotEndTime: LocalTime?,
+
+    @field:Schema(description = "예약 슬롯 개수", example = "56")
+    val reservationSlotCount: Int,
+
+    @field:Schema(description = "최저가", example = "100000.00")
+    val minPrice: BigDecimal,
+
+    @field:Schema(description = "총합 가격", example = "300000.00")
+    val totalPrice: BigDecimal,
+) {
+    companion object {
+        fun from(pkg: Package): PackageSpecificResponse {
+            val slotStartDate: LocalDate? = pkg.reservationSlots.minOfOrNull { it.reservationDate }
+            val slotEndDate: LocalDate? = pkg.reservationSlots.maxOfOrNull { it.reservationDate }
+            val slotStartTime: LocalTime? = pkg.reservationSlots.minByOrNull { it.startTime }?.startTime
+            val slotEndTime: LocalTime? = pkg.reservationSlots.maxByOrNull { it.endTime }?.endTime
+
+            return PackageSpecificResponse(
+                id = pkg.id,
+                name = pkg.name,
+                description = pkg.description,
+                products = pkg.packageProducts.map { PackageProductResponse.from(it.product) },
+                tagNames = pkg.packageTags.map { it.tagName }.distinct(),
+                slotStartDate = slotStartDate,
+                slotEndDate = slotEndDate,
+                slotStartTime = slotStartTime,
+                slotEndTime = slotEndTime,
+                reservationSlotCount = pkg.reservationSlots.size,
+                minPrice = pkg.minPrice,
+                totalPrice = pkg.totalPrice
+            )
+        }
+    }
+}
+
+data class PackageProductResponse(
+    @field:Schema(description = "상품 ID", example = "1")
+    val id: Long,
+
+    @field:Schema(description = "상품명", example = "스파 이용권")
+    val name: String,
+
+    @field:Schema(description = "상품 설명", example = "프라이빗 스파 2시간 이용")
+    val description: String,
+
+    @field:Schema(description = "가격", example = "100000.00")
+    val price: BigDecimal,
+
+    @field:Schema(description = "장소", example = "서울")
+    val location: String,
+) {
+    companion object {
+        fun from(product: Product): PackageProductResponse =
+            PackageProductResponse(
+                id = product.id,
+                name = product.name,
+                description = product.description,
+                price = product.price,
+                location = product.location
+            )
+    }
+}

src/main/kotlin/com/doki/productpackage/infrastructure/PackageCommandRepository.kt → src/main/kotlin/com/doki/productpackage/pkg/infrastructure/PackageCommandRepository.kt

@@ -1,6 +1,6 @@
-package com.doki.productpackage.infrastructure
+package com.doki.productpackage.pkg.infrastructure
 
-import com.doki.productpackage.domain.Package
+import com.doki.productpackage.pkg.domain.Package
 import org.springframework.data.repository.findByIdOrNull
 import org.springframework.stereotype.Repository
 

src/main/kotlin/com/doki/productpackage/infrastructure/PackageJpaRepository.kt → src/main/kotlin/com/doki/productpackage/pkg/infrastructure/PackageJpaRepository.kt

@@ -1,6 +1,6 @@
-package com.doki.productpackage.infrastructure
+package com.doki.productpackage.pkg.infrastructure
 
-import com.doki.productpackage.domain.Package
+import com.doki.productpackage.pkg.domain.Package
 import org.springframework.data.jpa.repository.JpaRepository
 
 interface PackageJpaRepository : JpaRepository<Package, Long>