feat: Concert 조회, 삽입, 삭제 구현

src/main/java/com/example/book_your_seat/concert/ConcertConst.java

@@ -0,0 +1,9 @@
+package com.example.book_your_seat.concert;
+
+public final class ConcertConst {
+
+    public static final String NO_DATA_IN_REPOSITORY = "일치하는 아이디가 없습니다!";
+    public static final int TOTAL_STOCK = 100;
+
+    private ConcertConst() {}
+}

src/main/java/com/example/book_your_seat/concert/controller/ConcertController.java

@@ -0,0 +1,48 @@
+package com.example.book_your_seat.concert.controller;
+
+import com.example.book_your_seat.concert.controller.dto.AddConcertRequest;
+import com.example.book_your_seat.concert.controller.dto.ConcertResponse;
+import com.example.book_your_seat.concert.service.ConcertCommandService;
+import com.example.book_your_seat.concert.service.ConcertQueryService;
+import jakarta.validation.Valid;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+@RequiredArgsConstructor
+@RequestMapping("/concerts")
+@RestController
+public class ConcertController {
+
+    private final ConcertCommandService concertCommandService;
+    private final ConcertQueryService concertQueryService;
+
+    @GetMapping
+    public ResponseEntity<List<ConcertResponse>> findAll() {
+        List<ConcertResponse> responses = concertQueryService.findAll();
+        return ResponseEntity.ok(responses);
+    }
+
+    @GetMapping("/{concertId}")
+    public ResponseEntity<ConcertResponse> findById(@PathVariable final Long concertId) {
+        ConcertResponse response = concertQueryService.findById(concertId);
+        return ResponseEntity.ok(response);
+    }
+
+    @PostMapping
+    public ResponseEntity<ConcertResponse> addConcert(
+            @Valid @RequestBody final AddConcertRequest request
+    ) {
+        ConcertResponse response = concertCommandService.add(request);
+        return ResponseEntity.status(HttpStatus.CREATED).body(response);
+    }
+
+    @DeleteMapping("/{concertId}")
+    public ResponseEntity<Void> deleteById(@PathVariable final Long concertId) {
+        concertCommandService.delete(concertId);
+        return ResponseEntity.noContent().build();
+    }
+}

src/main/java/com/example/book_your_seat/concert/controller/dto/AddConcertRequest.java

@@ -0,0 +1,33 @@
+package com.example.book_your_seat.concert.controller.dto;
+
+import com.example.book_your_seat.concert.domain.Concert;
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
+
+
+import java.time.LocalDate;
+
+import static com.example.book_your_seat.concert.ConcertConst.TOTAL_STOCK;
+
+public record AddConcertRequest(
+
+        @NotBlank
+        String title,
+
+        @NotNull
+        LocalDate startDate,
+
+        @NotNull
+        LocalDate endDate,
+
+        @NotNull
+        Integer price,
+
+        @NotNull
+        Integer time
+) {
+        public static Concert to(final AddConcertRequest request) {
+                return new Concert(request.title, TOTAL_STOCK,
+                        request.startDate, request.endDate, request.price, request.time);
+        }
+}

src/main/java/com/example/book_your_seat/concert/controller/dto/ConcertResponse.java

@@ -0,0 +1,39 @@
+package com.example.book_your_seat.concert.controller.dto;
+
+import com.example.book_your_seat.concert.domain.Concert;
+
+import com.example.book_your_seat.review.domain.Review;
+import com.example.book_your_seat.seat.domain.Seat;
+import lombok.Getter;
+
+import java.time.LocalDate;
+import java.util.List;
+
+@Getter
+public final class ConcertResponse {
+    private final Long id;
+    private final String title;
+    private final Integer totalStock;
+    private final LocalDate startDate;
+    private final LocalDate endDate;
+    private final Integer price;
+    private final Integer time;
+    private final List<Review> reviews;
+    private final List<Seat> seats;
+
+    private ConcertResponse(final Concert concert) {
+        this.id = concert.getId();
+        this.title = concert.getTitle();
+        this.totalStock = concert.getTotalStock();
+        this.startDate = concert.getStartDate();
+        this.endDate = concert.getEndDate();
+        this.price = concert.getPrice();
+        this.time = concert.getTime();
+        this.reviews = concert.getReviews();
+        this.seats = concert.getSeats();
+    }
+
+    public static ConcertResponse from(final Concert concert) {
+        return new ConcertResponse(concert);
+    }
+}

src/main/java/com/example/book_your_seat/concert/domain/Concert.java

@@ -13,7 +13,10 @@
 import jakarta.persistence.OneToMany;
 import java.time.LocalDate;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
+import java.util.stream.IntStream;
+
 import lombok.AccessLevel;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
@@ -28,18 +31,18 @@ public class Concert extends BaseEntity {
     private Long id;
 
     private String title;
-    private int totalStock;
+    private Integer totalStock;
 
     private LocalDate startDate;
     private LocalDate endDate;
 
-    private int price;
+    private Integer price;
     private int time;
 
     @OneToMany(mappedBy = "concert", cascade = CascadeType.ALL)
     private final List<LikeConcert> likeConcerts = new ArrayList<>();
 
-    @OneToMany(mappedBy = "user", cascade = CascadeType.ALL)
+    @OneToMany(mappedBy = "concert", cascade = CascadeType.ALL)
     private final List<Review> reviews = new ArrayList<>();
 
     @OneToMany(mappedBy = "concert", cascade = CascadeType.ALL)
@@ -55,6 +58,12 @@ public Concert(String title, int totalStock, LocalDate startDate, LocalDate endD
         this.endDate = endDate;
         this.price = price;
         this.time = time;
+        initializeSeats(); // 혹시라도 Seat 가 100개를 초과하지 않을까
+    }
+
+    private void initializeSeats() {
+        IntStream.range(0, 100)
+                .forEach(i -> new Seat(this));
     }
 
     public void addLikeConcert(LikeConcert likeConcert) {

src/main/java/com/example/book_your_seat/concert/repository/ConcertRepository.java

@@ -2,6 +2,8 @@
 
 import com.example.book_your_seat.concert.domain.Concert;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
 
+@Repository
 public interface ConcertRepository extends JpaRepository<Concert, Long> {
 }

src/main/java/com/example/book_your_seat/concert/repository/LikeConcertRepository.java

@@ -2,6 +2,8 @@
 
 import com.example.book_your_seat.concert.domain.LikeConcert;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
 
+@Repository
 public interface LikeConcertRepository extends JpaRepository<LikeConcert, Long> {
 }

src/main/java/com/example/book_your_seat/concert/service/ConcertCommandService.java

@@ -0,0 +1,10 @@
+package com.example.book_your_seat.concert.service;
+
+import com.example.book_your_seat.concert.controller.dto.AddConcertRequest;
+import com.example.book_your_seat.concert.controller.dto.ConcertResponse;
+
+public interface ConcertCommandService {
+
+    ConcertResponse add(AddConcertRequest request);
+    void delete(Long id);
+}

src/main/java/com/example/book_your_seat/concert/service/ConcertCommandServiceImpl.java

@@ -0,0 +1,30 @@
+package com.example.book_your_seat.concert.service;
+
+
+import com.example.book_your_seat.concert.domain.Concert;
+import com.example.book_your_seat.concert.controller.dto.AddConcertRequest;
+import com.example.book_your_seat.concert.controller.dto.ConcertResponse;
+import com.example.book_your_seat.concert.repository.ConcertRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+@Transactional
+@RequiredArgsConstructor
+@Service
+public class ConcertCommandServiceImpl implements ConcertCommandService {
+
+    private final ConcertRepository concertRepository;
+
+    @Override
+    public ConcertResponse add(final AddConcertRequest request) {
+        Concert concert = AddConcertRequest.to(request);
+        Concert savedConcert = concertRepository.save(concert);
+        return ConcertResponse.from(savedConcert);
+    }
+
+    @Override
+    public void delete(final Long id) {
+        concertRepository.deleteById(id);
+    }
+}

src/main/java/com/example/book_your_seat/concert/service/ConcertQueryService.java

@@ -0,0 +1,11 @@
+package com.example.book_your_seat.concert.service;
+
+import com.example.book_your_seat.concert.controller.dto.ConcertResponse;
+
+import java.util.List;
+
+public interface ConcertQueryService {
+
+    List<ConcertResponse> findAll();
+    ConcertResponse findById(Long id);
+}

src/main/java/com/example/book_your_seat/concert/service/ConcertQueryServiceImpl.java

@@ -0,0 +1,33 @@
+package com.example.book_your_seat.concert.service;
+
+import com.example.book_your_seat.concert.controller.dto.ConcertResponse;
+import com.example.book_your_seat.concert.repository.ConcertRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.List;
+
+import static com.example.book_your_seat.concert.ConcertConst.NO_DATA_IN_REPOSITORY;
+
+@Transactional(readOnly = true)
+@RequiredArgsConstructor
+@Service
+public class ConcertQueryServiceImpl implements ConcertQueryService {
+
+    private final ConcertRepository concertRepository;
+
+    @Override
+    public List<ConcertResponse> findAll() {
+        return concertRepository.findAll().stream()
+                .map(ConcertResponse::from)
+                .toList();
+    }
+
+    @Override
+    public ConcertResponse findById(final Long id) {
+        return concertRepository.findById(id)
+                .map(ConcertResponse::from)
+                .orElseThrow(() -> new IllegalArgumentException(NO_DATA_IN_REPOSITORY));
+    }
+}

src/test/java/com/example/book_your_seat/ControllerTestSupport.java

@@ -0,0 +1,20 @@
+package com.example.book_your_seat;
+
+import com.example.book_your_seat.concert.controller.ConcertController;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.test.web.servlet.MockMvc;
+
+@WebMvcTest(controllers = {
+        ConcertController.class
+})
+public abstract class ControllerTestSupport {
+
+    @Autowired
+    protected MockMvc mockMvc;
+    @Autowired
+    protected ObjectMapper objectMapper;
+
+
+}

src/test/java/com/example/book_your_seat/IntegerTestSupport.java

@@ -0,0 +1,9 @@
+package com.example.book_your_seat;
+
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+public abstract class IntegerTestSupport {
+
+
+}