Merge pull request #3 from f-lab-edu/feature/1

[#1] 도서 대출 코드 및 테스트 수정

build.gradle

@@ -27,6 +27,32 @@ dependencies {
 	// https://mvnrepository.com/artifact/com.google.code.gson/gson
 	implementation group: 'com.google.code.gson', name: 'gson', version: '2.10.1'
 
+	// https://mvnrepository.com/artifact/org.projectlombok/lombok
+	compileOnly group: 'org.projectlombok', name: 'lombok', version: '1.18.30'
+	annotationProcessor('org.projectlombok:lombok')
+	testAnnotationProcessor('org.projectlombok:lombok')
+
+	// mapstruct
+	// https://mvnrepository.com/artifact/org.mapstruct/mapstruct-processor
+//	annotationProcessor("org.mapstruct:mapstruct-processor:1.5.3.Final")
+//	// https://mvnrepository.com/artifact/org.mapstruct/mapstruct-processor
+//	testAnnotationProcessor("org.mapstruct:mapstruct-processor:1.5.3.Final")
+//	// https://mvnrepository.com/artifact/org.mapstruct/mapstruct
+//	implementation("org.mapstruct:mapstruct:1.5.3.Final")
+//	// https://mvnrepository.com/artifact/org.projectlombok/lombok-mapstruct-binding
+//	implementation("org.projectlombok:lombok-mapstruct-binding:0.2.0")
+
+//	implementation 'org.mapstruct:mapstruct:1.5.5.Final'
+//	annotationProcessor 'org.mapstruct:mapstruct-processor:1.5.5.Final'
+//	implementation 'org.mapstruct:mapstruct-jdk8:1.5.5.Final'
+//	implementation 'org.mapstruct:mapstruct-spring-extensions:1.5.5.Final'
+
+
+	implementation 'org.mapstruct:mapstruct:1.5.5.Final'
+	annotationProcessor 'org.mapstruct:mapstruct-processor:1.5.5.Final'
+
+
+
 }
 
 tasks.named('test') {

src/main/java/com/study/bookcafe/common/JsonHelper.java

@@ -0,0 +1,25 @@
+package com.study.bookcafe.common;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.ToNumberPolicy;
+
+import java.time.LocalDate;
+
+public class JsonHelper {
+    private static Gson gson;
+
+    public static Gson getGson() {
+        if(gson == null) {
+            gson = new GsonBuilder()
+                    .registerTypeAdapter(LocalDate.class, new LocalDateAdapter())
+                    .setPrettyPrinting()
+                    .serializeNulls()
+                    .disableHtmlEscaping()
+                    .setObjectToNumberStrategy(ToNumberPolicy.LONG_OR_DOUBLE)
+                    .create();
+        }
+
+        return gson;
+    }
+}

src/main/java/com/study/bookcafe/common/LocalDateAdapter.java

@@ -0,0 +1,21 @@
+package com.study.bookcafe.common;
+
+import com.google.gson.*;
+
+import java.lang.reflect.Type;
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+
+public class LocalDateAdapter implements JsonDeserializer<LocalDate>, JsonSerializer<LocalDate> {
+    private static final DateTimeFormatter formatter = DateTimeFormatter.ISO_LOCAL_DATE;
+
+    @Override
+    public JsonElement serialize(LocalDate date, Type typeOfSrc, JsonSerializationContext context) {
+        return new JsonPrimitive(date.format(formatter)); // "yyyy-MM-dd" 형식으로 직렬화
+    }
+
+    @Override
+    public LocalDate deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
+        return LocalDate.parse(json.getAsString(), formatter); // JSON 문자열을 LocalDate로 역직렬화
+    }
+}

src/main/java/com/study/bookcafe/controller/MemberController.java

@@ -0,0 +1,43 @@
+package com.study.bookcafe.controller;
+
+import com.study.bookcafe.domain.Borrow;
+import com.study.bookcafe.domain.Member;
+import com.study.bookcafe.dto.BorrowDto;
+import com.study.bookcafe.dto.MemberDto;
+import com.study.bookcafe.dto.RequestBorrowDto;
+import com.study.bookcafe.mapper.BorrowMapper;
+import com.study.bookcafe.mapper.MemberMapper;
+import com.study.bookcafe.service.MemberService;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+@RestController
+public class MemberController {
+
+    private final MemberService memberService;
+    private final MemberMapper memberMapper;
+    private final BorrowMapper borrowMapper;
+
+    public MemberController(MemberService memberService, MemberMapper memberMapper, BorrowMapper borrowMapper) {
+        this.memberService = memberService;
+        this.memberMapper = memberMapper;
+        this.borrowMapper = borrowMapper;
+    }
+
+    @GetMapping("/member/{id}")
+    @ResponseBody
+    public ResponseEntity<MemberDto> member(@PathVariable long id) {
+        Member member = memberService.findById(id);
+        return ResponseEntity.ok(memberMapper.toMemberDto(member));
+    }
+
+    @PostMapping("/member/borrow")
+    @ResponseBody
+    public ResponseEntity<List<BorrowDto>> borrowBook(@RequestBody RequestBorrowDto requestBorrowDto) {
+        List<Borrow> borrowList = memberService.borrowBook(requestBorrowDto.getMemberId(), requestBorrowDto.getBookdIdList());
+        return ResponseEntity.ok(borrowMapper.toBorrowDtoList(borrowList));
+    }
+
+}

src/main/java/com/study/bookcafe/dao/BookRepository.java

@@ -0,0 +1,10 @@
+package com.study.bookcafe.dao;
+
+import com.study.bookcafe.entity.BookEntity;
+
+import java.util.List;
+
+public interface BookRepository {
+    BookEntity findById(long bookId);
+    List<BookEntity> findByIdList(List<Long> bookIdList);
+}

src/main/java/com/study/bookcafe/dao/BorrowRepository.java

@@ -0,0 +1,13 @@
+package com.study.bookcafe.dao;
+
+import com.study.bookcafe.entity.BorrowEntity;
+
+import java.util.List;
+
+public interface BorrowRepository {
+
+    BorrowEntity findById(long borrowId);
+    BorrowEntity save(BorrowEntity borrowEntity);
+    List<BorrowEntity> save(List<BorrowEntity> borrowEntityList);
+
+}

src/main/java/com/study/bookcafe/dao/GeneralMemberRepository.java

@@ -0,0 +1,23 @@
+package com.study.bookcafe.dao;
+
+import com.study.bookcafe.domain.Level;
+import com.study.bookcafe.entity.MemberEntity;
+import org.springframework.stereotype.Repository;
+
+import java.util.HashMap;
+import java.util.Map;
+
+@Repository
+public class GeneralMemberRepository implements MemberRepository {
+
+    Map<Long, MemberEntity> members = new HashMap<>(){{
+        put(1L, MemberEntity.builder().id(1L).name("슈카").level(Level.BASIC).borrowCount(0).build());
+        put(2L, MemberEntity.builder().id(2L).name("머스크").level(Level.WORM).borrowCount(3).build());
+        put(3L, MemberEntity.builder().id(3L).name("트럼프").level(Level.LIBRARIAN).borrowCount(5).build());
+    }};
+
+    @Override
+    public MemberEntity findById(long memberId) {
+        return members.get(memberId);
+    }
+}

src/main/java/com/study/bookcafe/dao/MemberRepository.java

@@ -0,0 +1,7 @@
+package com.study.bookcafe.dao;
+
+import com.study.bookcafe.entity.MemberEntity;
+
+public interface MemberRepository {
+    MemberEntity findById(long memberId);
+}

src/main/java/com/study/bookcafe/dao/TestBookRepository.java

@@ -0,0 +1,32 @@
+package com.study.bookcafe.dao;
+
+import com.study.bookcafe.domain.Inventory;
+import com.study.bookcafe.entity.BookEntity;
+import org.springframework.stereotype.Repository;
+
+import java.sql.Date;
+import java.time.LocalDate;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+@Repository
+public class TestBookRepository implements BookRepository {
+    public static Map<Long, BookEntity> books = new HashMap<>(){{
+        put(1L, BookEntity.builder().id(1L).ISBN(9788936433598L).title("채식주의자").author("한강").publisher("창비").publishDate(Date.valueOf(LocalDate.of(2007, 10, 30)))
+                .price(35000).inventory(new Inventory(5)).build());
+        put(2L, BookEntity.builder().id(2L).ISBN(9788954651134L).title("흰").author("한강").publisher("문학동네").publishDate(Date.valueOf(LocalDate.of(2018, 4, 25)))
+                .price(13000).inventory(new Inventory(0)).build());
+    }};
+
+    public BookEntity findById(long bookId) {
+        return books.get(bookId);
+    }
+
+    @Override
+    public List<BookEntity> findByIdList(List<Long> bookIdList) {
+        return bookIdList
+                .stream().filter(id -> books.containsKey(id))
+                .map(id -> books.get(id)).toList();
+    }
+}

src/main/java/com/study/bookcafe/dao/TestBorrowRepository.java

@@ -0,0 +1,38 @@
+package com.study.bookcafe.dao;
+
+import com.study.bookcafe.entity.BookEntity;
+import com.study.bookcafe.entity.BorrowEntity;
+import com.study.bookcafe.entity.MemberEntity;
+import org.springframework.stereotype.Repository;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+@Repository
+public class TestBorrowRepository implements BorrowRepository {
+    Map<Long, BorrowEntity> borrows = new HashMap<>(){{
+        put(1L, BorrowEntity.builder()
+                .member(MemberEntity.builder().id(1).build())
+                .book(BookEntity.builder().id(1).ISBN(9788936433598L).build()).build());
+        put(2L, BorrowEntity.builder()
+                .member(MemberEntity.builder().id(1).build())
+                .book(BookEntity.builder().id(2).ISBN(9788936433598L).build()).build());
+        put(3L, null);
+    }};
+
+    public BorrowEntity findById(long borrowId) {
+        return borrows.get(borrowId);
+    }
+
+    public BorrowEntity save(BorrowEntity borrowEntity) {
+        return borrowEntity;
+    }
+
+    @Override
+    public List<BorrowEntity> save(List<BorrowEntity> borrowEntityList) {
+        return borrowEntityList
+                .stream().filter(borrow -> borrows.containsKey(borrow.getId()))
+                .map(borrow -> borrows.get(borrow.getId())).toList();
+    }
+}

src/main/java/com/study/bookcafe/domain/Book.java

@@ -0,0 +1,28 @@
+package com.study.bookcafe.domain;
+
+import lombok.Builder;
+import lombok.Getter;
+
+import java.sql.Date;
+
+@Builder
+@Getter
+public class Book {
+    private long id;                        // 도서 번호
+    private long ISBN;                      // 국제표준도서번호
+    private String title;                   // 도서 명
+    private String author;                  // 저자 명
+    private String publisher;               // 출판사
+    private Date publishDate;               // 출판일
+    private double price;                   // 도서 가격
+    private Inventory inventory;            // 도서 상태 정보 (재고, 대출, 예약)
+
+    /**
+     * 도서가 대출 가능한 상태인지 확인한다.
+     *
+     * @return 현재 도서의 대출 가능한 재고가 있는지 여부
+     */
+    public boolean canBorrow() {
+        return this.getInventory() != null && this.getInventory().isOnStock();
+    }
+}

src/main/java/com/study/bookcafe/domain/Borrow.java

@@ -0,0 +1,34 @@
+package com.study.bookcafe.domain;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import java.sql.Timestamp;
+
+@Builder
+@Getter
+@NoArgsConstructor
+@AllArgsConstructor
+public class Borrow {
+    private long id;                        // 대출 ID
+    private Member member;                  // 회원
+    private Book book;                      // 도서
+    private Timestamp borrowDate;           // 대출 날짜
+    private Timestamp returnDate;           // 반납 날짜
+
+    public Borrow(Member member, Book book) {
+        this.member = member;
+        this.book = book;
+    }
+
+    /**
+     * 대출이 성공했는지 확인한다.
+     *
+     * @param borrow 대출
+     * @return 대출이 성공했는지 여부
+     */
+    public static boolean successBorrow(Borrow borrow) {
+        return borrow != null;
+    }
+}