[BOOK-79] feat: apis - 알라딘 도서검색, 도서상세검색 Service (#15)

Author: minwoo1999

apis/src/main/kotlin/org/yapp/apis/book/service/BookService.kt

@@ -0,0 +1,29 @@
+package org.yapp.apis.book.service
+
+import BookSearchResponse
+import mu.KotlinLogging
+import org.springframework.stereotype.Service
+import org.yapp.apis.book.dto.response.BookDetailResponse
+import org.yapp.infra.external.aladin.helper.AladinApiHelper
+import org.yapp.infra.external.aladin.response.AladinBookDetailResponse
+import org.yapp.infra.external.aladin.response.AladinSearchResponse
+
+@Service
+class BookService(
+    private val aladinApiHelper: AladinApiHelper,
+) {
+    private val log = KotlinLogging.logger {}
+
+
+    fun searchBooks(query: String, params: Map<String, Any>): BookSearchResponse {
+        log.info("Calling Aladin API for book search with query: $query")
+        val response: AladinSearchResponse = aladinApiHelper.searchBooks(query, params)
+        return BookSearchResponse.from(response)
+    }
+
+    fun lookupBook(itemId: String, itemIdType: String, optResult: List<String>?): BookDetailResponse {
+        log.info("Calling Aladin API for book detail lookup for itemId: $itemId, itemIdType: $itemIdType with optResult: $optResult")
+        val aladinResponse: AladinBookDetailResponse = aladinApiHelper.lookupBook(itemId, itemIdType, optResult)
+        return BookDetailResponse.from(aladinResponse)
+    }
+}