[KAN-61-KAN-66-KAN-68-KAN-69-KAN-70-KAN-71] Main Merge PR (#47)

src/main/kotlin/com/restaurant/be/common/config/SwaggerConfig.kt

@@ -1,5 +1,7 @@
 package com.restaurant.be.common.config
 
+import io.swagger.annotations.ApiModel
+import io.swagger.annotations.ApiModelProperty
 import org.springframework.context.annotation.Bean
 import org.springframework.context.annotation.Configuration
 import org.springframework.http.HttpMethod
@@ -76,4 +78,16 @@ class SwaggerConfig {
         return ApiInfoBuilder().title("REST API Document.")
             .description("work in progress").termsOfServiceUrl("localhost").version("1.0").build()
     }
+
+    @ApiModel
+    class PageModel {
+        @ApiModelProperty(value = "페이지 번호(0..N)", example = "0")
+        val page: Int = 0
+
+        @ApiModelProperty(value = "페이지 크기", allowableValues = "range[0, 100]", example = "0")
+        val size: Int = 0
+
+        @ApiModelProperty(value = "정렬(사용법: 컬럼명,ASC|DESC)")
+        val sort: List<String> = listOf()
+    }
 }

src/main/kotlin/com/restaurant/be/common/exception/ServerException.kt

@@ -17,6 +17,10 @@ data class NotFoundUserEmailException(
     override val message: String = "존재 하지 않는 유저 이메일 입니다."
 ) : ServerException(400, message)
 
+data class NotFoundUserIdException(
+    override val message: String = "유저 고유 ID가 존재하지 않습니다"
+) : ServerException(500, message)
+
 data class WithdrawalUserException(
     override val message: String = "탈퇴한 유저 입니다."
 ) : ServerException(400, message)
@@ -56,3 +60,23 @@ data class NotFoundUserException(
 data class NotFoundReviewException(
     override val message: String = "존재하지 않은 리뷰 입니다."
 ) : ServerException(400, message)
+
+data class UnAuthorizedUpdateException(
+    override val message: String = "해당 게시글을 수정할 권한이 없습니다."
+) : ServerException(401, message)
+
+data class UnAuthorizedDeleteException(
+    override val message: String = "해당 게시글을 삭제할 권한이 없습니다."
+) : ServerException(401, message)
+
+data class DuplicateLikeException(
+    override val message: String = "같은 게시글을 두번 좋아요할 수 없습니다."
+) : ServerException(400, message)
+
+data class NotFoundLikeException(
+    override val message: String = "해당 게시글은 이미 좋아하지 않습니다."
+) : ServerException(400, message)
+
+data class InvalidLikeCountException(
+    override val message: String = "좋아요가 0보다 작아질 순 없습니다."
+) : ServerException(500, message)

src/main/kotlin/com/restaurant/be/review/domain/entity/Review.kt

@@ -1,7 +1,11 @@
 package com.restaurant.be.review.domain.entity
 
 import com.restaurant.be.common.entity.BaseEntity
+import com.restaurant.be.common.exception.InvalidLikeCountException
+import com.restaurant.be.review.domain.entity.QReview.review
+import com.restaurant.be.review.presentation.dto.UpdateReviewRequest
 import com.restaurant.be.review.presentation.dto.common.ReviewResponseDto
+import com.restaurant.be.user.domain.entity.QUser.user
 import com.restaurant.be.user.domain.entity.User
 import kotlinx.serialization.json.JsonNull.content
 import javax.persistence.CascadeType
@@ -32,31 +36,67 @@ class Review(
     val restaurantId: Long,
 
     @Column(nullable = false)
-    val content: String,
+    var content: String,
 
     @Column(nullable = false)
-    val rating: Double,
+    var rating: Double,
+
+    @Column(name = "like_count", nullable = false)
+    var likeCount: Long = 0,
+
+    @Column(name = "view_count", nullable = false)
+    var viewCount: Long = 0,
 
     // 부모 (Review Entity)가 주인이되어 Image참조 가능. 반대는 불가능
     @OneToMany(cascade = [CascadeType.ALL], orphanRemoval = true)
     @JoinColumn(name = "review_id")
-    val images: MutableList<ReviewImage> = mutableListOf()
+    var images: MutableList<ReviewImage> = mutableListOf()
 
 ) : BaseEntity() {
     fun addImage(reviewImage: ReviewImage) {
         images.add(reviewImage)
     }
 
+    fun updateReview(request: UpdateReviewRequest) {
+        val updateRequest = request.review
+        this.content = updateRequest.content
+        this.rating = updateRequest.rating
+        this.images.clear()
+        updateRequest.imageUrls.forEach {
+            this.addImage(
+                ReviewImage(
+                    imageUrl = it
+                )
+            )
+        }
+    }
+
+    fun incrementViewCount() {
+        this.viewCount++
+    }
+    fun incrementLikeCount() {
+        this.likeCount++
+    }
+    fun decrementLikeCount() {
+        if (this.likeCount == 0L) {
+            throw InvalidLikeCountException()
+        }
+        this.likeCount--
+    }
+
     fun toResponseDTO(doesUserLike: Boolean): ReviewResponseDto {
         return ReviewResponseDto(
+            id = id ?: 0,
             userId = user.id ?: 0,
             username = user.nickname,
             profileImageUrl = user.profileImageUrl,
             restaurantId = restaurantId,
             rating = rating,
             content = content,
             imageUrls = images.map { it.imageUrl },
-            isLike = doesUserLike
+            isLike = doesUserLike,
+            viewCount = viewCount,
+            likeCount = likeCount
         )
     }
 }

src/main/kotlin/com/restaurant/be/review/domain/entity/ReviewLikes.kt

@@ -1,3 +1,4 @@
+
 package com.restaurant.be.review.domain.entity
 
 import javax.persistence.Column

src/main/kotlin/com/restaurant/be/review/domain/service/DeleteReviewService.kt

@@ -0,0 +1,27 @@
+package com.restaurant.be.review.domain.service
+
+import com.restaurant.be.common.exception.NotFoundReviewException
+import com.restaurant.be.common.exception.NotFoundUserEmailException
+import com.restaurant.be.common.exception.UnAuthorizedDeleteException
+import com.restaurant.be.review.repository.ReviewRepository
+import com.restaurant.be.user.repository.UserRepository
+import org.springframework.stereotype.Service
+import javax.transaction.Transactional
+import kotlin.jvm.optionals.getOrNull
+
+@Service
+class DeleteReviewService(
+    private val reviewRepository: ReviewRepository,
+    private val userRepository: UserRepository
+) {
+    @Transactional
+    fun deleteReview(reviewId: Long, email: String) {
+        val user = userRepository.findByEmail(email) ?: throw NotFoundUserEmailException()
+
+        var review = reviewRepository.findById(reviewId).getOrNull() ?: throw NotFoundReviewException()
+
+        if (user.id != review.user.id) throw UnAuthorizedDeleteException()
+
+        reviewRepository.deleteById(reviewId)
+    }
+}

src/main/kotlin/com/restaurant/be/review/domain/service/GetReviewService.kt

@@ -1,38 +1,75 @@
 package com.restaurant.be.review.domain.service
 
+import com.restaurant.be.common.exception.NotFoundReviewException
 import com.restaurant.be.common.exception.NotFoundUserEmailException
+import com.restaurant.be.review.presentation.dto.GetMyReviewsResponse
 import com.restaurant.be.review.presentation.dto.GetReviewResponse
-import com.restaurant.be.review.repository.ReviewLikesRepository
+import com.restaurant.be.review.presentation.dto.GetReviewsResponse
+import com.restaurant.be.review.presentation.dto.ReviewWithLikesDto
+import com.restaurant.be.review.presentation.dto.common.ReviewResponseDto
 import com.restaurant.be.review.repository.ReviewRepository
 import com.restaurant.be.user.repository.UserRepository
-import org.springframework.data.domain.PageRequest
+import org.springframework.data.domain.Pageable
 import org.springframework.stereotype.Service
+import org.springframework.transaction.annotation.Transactional
 
 @Service
 class GetReviewService(
     private val userRepository: UserRepository,
-    private val reviewRepository: ReviewRepository,
-    private val reviewLikesRepository: ReviewLikesRepository
+    private val reviewRepository: ReviewRepository
+
 ) {
-    fun getReviewListOf(page: Int, size: Int, email: String): GetReviewResponse {
-        val pageable = PageRequest.of(page, size)
-        val reviews = reviewRepository.findAll(pageable).content
+    @Transactional(readOnly = true)
+    fun getReviews(pageable: Pageable, email: String): GetReviewsResponse {
+        val user = userRepository.findByEmail(email)
+            ?: throw NotFoundUserEmailException()
+
+        val reviewsWithLikes = reviewRepository.findReviews(user, pageable)
+
+        val responseDtos = convertResponeDto(reviewsWithLikes)
 
+        return GetReviewsResponse(responseDtos)
+    }
+
+    @Transactional
+    fun getReview(reviewId: Long, email: String): GetReviewResponse {
         val user = userRepository.findByEmail(email)
             ?: throw NotFoundUserEmailException()
 
-        return GetReviewResponse(
-            reviews.map {
-                it
-                    .toResponseDTO(doesUserLike = isReviewLikedByUser(user.id, it.id))
-            }
+        val reviewWithLikes = reviewRepository.findReview(user, reviewId)
+            ?: throw NotFoundReviewException()
+
+        if (reviewWithLikes.review.user.id != user.id) {
+            reviewWithLikes.review.incrementViewCount()
+        }
+
+        val responseDto = ReviewResponseDto.toDto(
+            reviewWithLikes.review,
+            reviewWithLikes.isLikedByUser
         )
+
+        return GetReviewResponse(responseDto)
+    }
+
+    @Transactional(readOnly = true)
+    fun getMyReviews(pageable: Pageable, email: String): GetMyReviewsResponse {
+        val user = userRepository.findByEmail(email)
+            ?: throw NotFoundUserEmailException()
+
+        val reviewsWithLikes = reviewRepository.findMyReviews(user, pageable)
+
+        val reviewResponses = convertResponeDto(reviewsWithLikes)
+
+        return GetMyReviewsResponse(reviewResponses)
     }
 
-    fun isReviewLikedByUser(userId: Long?, reviewId: Long?): Boolean {
-        if (userId != 0L) {
-            return reviewLikesRepository.existsByReviewIdAndUserId(userId, reviewId)
+    private fun convertResponeDto(reviewsWithLikes: List<ReviewWithLikesDto>): List<ReviewResponseDto> {
+        val reviewResponses = reviewsWithLikes.map {
+            ReviewResponseDto.toDto(
+                it.review,
+                it.isLikedByUser
+            )
         }
-        return false
+        return reviewResponses
     }
 }

src/main/kotlin/com/restaurant/be/review/domain/service/LikeReviewService.kt

@@ -0,0 +1,71 @@
+package com.restaurant.be.review.domain.service
+
+import com.restaurant.be.common.exception.DuplicateLikeException
+import com.restaurant.be.common.exception.NotFoundLikeException
+import com.restaurant.be.common.exception.NotFoundReviewException
+import com.restaurant.be.common.exception.NotFoundUserEmailException
+import com.restaurant.be.common.exception.NotFoundUserIdException
+import com.restaurant.be.review.domain.entity.QReview.review
+import com.restaurant.be.review.presentation.dto.LikeReviewRequest
+import com.restaurant.be.review.presentation.dto.LikeReviewResponse
+import com.restaurant.be.review.presentation.dto.ReviewWithLikesDto
+import com.restaurant.be.review.presentation.dto.common.ReviewResponseDto
+import com.restaurant.be.review.repository.ReviewLikesRepository
+import com.restaurant.be.review.repository.ReviewRepository
+import com.restaurant.be.user.domain.entity.User
+import com.restaurant.be.user.repository.UserRepository
+import org.springframework.stereotype.Service
+import org.springframework.transaction.annotation.Transactional
+
+@Service
+class LikeReviewService(
+    val userRepository: UserRepository,
+    val reviewLikesRepository: ReviewLikesRepository,
+    val reviewRepository: ReviewRepository
+) {
+    @Transactional
+    fun likeReview(reviewId: Long, request: LikeReviewRequest, email: String): LikeReviewResponse {
+        val user = userRepository.findByEmail(email)
+            ?: throw NotFoundUserEmailException()
+
+        val userId = user.id ?: throw NotFoundUserIdException()
+
+        likeReviewWhetherAlreadyLikeOrNot(request, reviewId, user, userId)
+
+        val reviewWithLikes: ReviewWithLikesDto? = reviewRepository.findReview(user, reviewId)
+            ?: throw NotFoundReviewException()
+
+        val responseDto = ReviewResponseDto.toDto(
+            reviewWithLikes!!.review,
+            reviewWithLikes.isLikedByUser
+        )
+
+        return LikeReviewResponse(responseDto)
+    }
+
+    private fun likeReviewWhetherAlreadyLikeOrNot(
+        request: LikeReviewRequest,
+        reviewId: Long,
+        user: User,
+        userId: Long
+    ) {
+        if (request.isLike) {
+            if (isAlreadyLike(reviewId, user)) {
+                throw DuplicateLikeException()
+            }
+            reviewLikesRepository.save(request.toEntity(userId, reviewId))
+            val review = reviewRepository.findById(reviewId)
+            review.get().incrementLikeCount()
+        } else {
+            if (!isAlreadyLike(reviewId, user)) {
+                throw NotFoundLikeException()
+            }
+            reviewLikesRepository.deleteByReviewIdAndUserId(reviewId, userId)
+            val review = reviewRepository.findById(reviewId)
+            review.get().decrementLikeCount()
+        }
+    }
+
+    private fun isAlreadyLike(reviewId: Long, user: User) =
+        reviewLikesRepository.existsByReviewIdAndUserId(reviewId, user.id)
+}

src/main/kotlin/com/restaurant/be/review/domain/service/UpdateReviewService.kt

@@ -0,0 +1,44 @@
+package com.restaurant.be.review.domain.service
+
+import com.restaurant.be.common.exception.NotFoundReviewException
+import com.restaurant.be.common.exception.NotFoundUserEmailException
+import com.restaurant.be.common.exception.UnAuthorizedUpdateException
+import com.restaurant.be.review.domain.entity.QReview.review
+import com.restaurant.be.review.presentation.dto.UpdateReviewRequest
+import com.restaurant.be.review.presentation.dto.UpdateReviewResponse
+import com.restaurant.be.review.presentation.dto.common.ReviewResponseDto
+import com.restaurant.be.review.repository.ReviewRepository
+import com.restaurant.be.user.repository.UserRepository
+import org.springframework.stereotype.Service
+import javax.transaction.Transactional
+import kotlin.jvm.optionals.getOrNull
+
+@Service
+class UpdateReviewService(
+    private val reviewRepository: ReviewRepository,
+    private val userRepository: UserRepository
+) {
+    @Transactional
+    fun updateReview(restaurantId: Long, reviewId: Long, reviewRequest: UpdateReviewRequest, email: String): UpdateReviewResponse {
+        val user = userRepository.findByEmail(email)
+            ?: throw NotFoundUserEmailException()
+
+        val review = reviewRepository.findById(reviewId)
+            .getOrNull()
+            ?: throw NotFoundReviewException()
+
+        if (user.id != review.user.id) throw UnAuthorizedUpdateException()
+
+        review.updateReview(reviewRequest)
+
+        val reviewWithLikes = reviewRepository.findReview(user, reviewId)
+            ?: throw NotFoundReviewException()
+
+        val responseDto = ReviewResponseDto.toDto(
+            reviewWithLikes.review,
+            reviewWithLikes.isLikedByUser
+        )
+
+        return UpdateReviewResponse(responseDto)
+    }
+}