Merge pull request #73 from NameOfTeam/features/search-theme

테마 검색

src/main/kotlin/com/solve/domain/theme/controller/ThemeSearchController.kt

@@ -0,0 +1,26 @@
+package com.solve.domain.theme.controller
+
+import com.solve.domain.theme.service.ThemeSearchService
+import com.solve.global.common.dto.BaseResponse
+import io.swagger.v3.oas.annotations.Operation
+import io.swagger.v3.oas.annotations.tags.Tag
+import org.springframework.data.domain.PageRequest
+import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RequestParam
+import org.springframework.web.bind.annotation.RestController
+
+@Tag(name = "테마 검색", description = "Theme Search")
+@RestController
+@RequestMapping("/themes/search")
+class ThemeSearchController(
+    private val themeSearchService: ThemeSearchService
+) {
+    @Operation(summary = "테마 검색")
+    @GetMapping
+    fun searchTheme(
+        @RequestParam(required = false, defaultValue = "") query: String,
+        @RequestParam(required = false, defaultValue = "0") page: Int,
+        @RequestParam(required = false, defaultValue = "10") size: Int
+    ) = BaseResponse.of(themeSearchService.searchTheme(query, PageRequest.of(page, size)))
+}

src/main/kotlin/com/solve/domain/theme/mapper/ThemeMapper.kt

@@ -0,0 +1,23 @@
+package com.solve.domain.theme.mapper
+
+import com.solve.domain.theme.domain.entity.Theme
+import com.solve.domain.theme.dto.response.ThemeResponse
+import org.springframework.stereotype.Component
+
+@Component
+class ThemeMapper {
+    fun toResponse(theme: Theme) = ThemeResponse(
+        id = theme.id!!,
+        name = theme.name,
+        description = theme.description,
+        thumbnail = theme.thumbnail,
+        background = theme.background,
+        backgroundBorder = theme.backgroundBorder,
+        container = theme.container,
+        containerBorder = theme.containerBorder,
+        main = theme.main,
+        price = theme.price,
+        isPurchasable = false,
+        has = false
+    )
+}

src/main/kotlin/com/solve/domain/theme/repository/ThemeQueryRepository.kt

@@ -0,0 +1,50 @@
+package com.solve.domain.theme.repository
+
+import com.querydsl.core.types.dsl.BooleanExpression
+import com.querydsl.jpa.impl.JPAQueryFactory
+import com.solve.domain.theme.domain.entity.QTheme
+import com.solve.domain.theme.domain.entity.Theme
+import org.springframework.data.domain.Page
+import org.springframework.data.domain.PageImpl
+import org.springframework.data.domain.Pageable
+import org.springframework.stereotype.Repository
+import org.springframework.transaction.annotation.Transactional
+
+@Repository
+class ThemeQueryRepository(
+    private val queryFactory: JPAQueryFactory
+) {
+    private val theme = QTheme.theme
+
+    @Transactional(readOnly = true)
+    fun searchTheme(query: String, pageable: Pageable): Page<Theme> {
+        val contents = queryFactory
+            .selectFrom(theme)
+            .distinct()
+            .where(
+                searchKeywordContains(query)
+            )
+            .offset(pageable.offset)
+            .limit(pageable.pageSize.toLong())
+            .orderBy(theme._createdAt.desc(), theme.id.desc())
+            .fetch()
+
+        val total = queryFactory
+            .select(theme.count())
+            .from(theme)
+            .where(
+                searchKeywordContains(query)
+            )
+            .fetchOne() ?: 0L
+
+        return PageImpl(contents, pageable, total)
+    }
+
+    private fun searchKeywordContains(query: String): BooleanExpression? =
+        if (query.isBlank()) {
+            null
+        } else {
+            theme.name.containsIgnoreCase(query)
+                .or(theme.description.containsIgnoreCase(query))
+        }
+}

src/main/kotlin/com/solve/domain/theme/service/ThemeSearchService.kt

@@ -0,0 +1,22 @@
+package com.solve.domain.theme.service
+
+import com.solve.domain.theme.dto.response.ThemeResponse
+import com.solve.domain.theme.mapper.ThemeMapper
+import com.solve.domain.theme.repository.ThemeQueryRepository
+import org.springframework.data.domain.Page
+import org.springframework.data.domain.Pageable
+import org.springframework.stereotype.Service
+import org.springframework.transaction.annotation.Transactional
+
+@Service
+class ThemeSearchService(
+    private val themeMapper: ThemeMapper,
+    private val themeQueryRepository: ThemeQueryRepository
+) {
+    @Transactional(readOnly = true)
+    fun searchTheme(query: String, pageable: Pageable): Page<ThemeResponse> {
+        val themes = themeQueryRepository.searchTheme(query, pageable)
+
+        return themes.map { themeMapper.toResponse(it) }
+    }
+}