[BE] feat: 모집 중인 방 리스트 API 구현(#30) (#68)

* feat: Room Entity가 필요한 정보 추가

* feat: 초기 데이터 구현

* feat: 사이트에 접속한 유저를 파악하기 위한 ArgumentResolver 구현

* feat: 모집중인 방 리스트를 조회하는 기능 구현

* refactor: 페이지 사이즈 수정

* test: 테스트 필드에 private 접근 제어자 추가

backend/src/main/java/corea/DataInitializer.java

@@ -0,0 +1,125 @@
+package corea;
+
+import corea.matching.domain.Participation;
+import corea.matching.repository.ParticipationRepository;
+import corea.member.domain.Member;
+import corea.member.repository.MemberRepository;
+import corea.room.domain.Classification;
+import corea.room.domain.Room;
+import corea.room.domain.RoomStatus;
+import corea.room.repository.RoomRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.boot.ApplicationArguments;
+import org.springframework.boot.ApplicationRunner;
+import org.springframework.context.annotation.Profile;
+import org.springframework.stereotype.Component;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.time.LocalDateTime;
+
+@Profile("test")
+@Component
+@Transactional
+@RequiredArgsConstructor
+public class DataInitializer implements ApplicationRunner {
+
+    private final MemberRepository memberRepository;
+    private final RoomRepository roomRepository;
+    private final ParticipationRepository participationRepository;
+
+    @Override
+    public void run(ApplicationArguments args) {
+        Member member1 = memberRepository.save(
+                new Member("jcoding-play", null, "조경찬",
+                        "[email protected]", true, 5f));
+        Member member2 = memberRepository.save(
+                new Member("ashsty", null, "박민아",
+                        null, false, 1.5f));
+        Member member3 = memberRepository.save(
+                new Member("youngsu5582", null, "이영수",
+                        null, false, 4f));
+        Member member4 = memberRepository.save(
+                new Member("hjk0761", null, "김현중",
+                        null, true, 3f));
+        Member member5 = memberRepository.save(
+                new Member("chlwlstlf", null, "최진실",
+                        null, true, 2f));
+        Member member6 = memberRepository.save(
+                new Member("00kang", null, "강다빈",
+                        null, true, 1f));
+        Member member7 = memberRepository.save(
+                new Member("pp449", null, "이상엽",
+                        "[email protected]", true, 4.8f));
+
+        Room room1 = roomRepository.save(
+                new Room("방 제목 1", "방 설명 1", 3,
+                        null, null, "TDD",
+                        1, 20, member1,
+                        LocalDateTime.of(2024, 12, 25, 12, 0),
+                        LocalDateTime.of(2024, 12, 30, 12, 0),
+                        Classification.BACKEND, RoomStatus.OPENED));
+        Room room2 = roomRepository.save(
+                new Room("방 제목 2", "방 설명 2", 3,
+                        null, null, "TDD",
+                        1, 20, member2,
+                        LocalDateTime.of(2024, 12, 25, 12, 0),
+                        LocalDateTime.of(2024, 12, 30, 12, 0),
+                        Classification.BACKEND, RoomStatus.OPENED));
+        Room room3 = roomRepository.save(
+                new Room("방 제목 3", "방 설명 3", 3,
+                        null, null, "TDD",
+                        1, 20, member3,
+                        LocalDateTime.of(2024, 12, 25, 12, 0),
+                        LocalDateTime.of(2024, 12, 30, 12, 0),
+                        Classification.ANDROID, RoomStatus.OPENED));
+        Room room4 = roomRepository.save(
+                new Room("방 제목 4", "방 설명 4", 3,
+                        null, null, "TDD",
+                        1, 20, member4,
+                        LocalDateTime.of(2024, 12, 25, 12, 0),
+                        LocalDateTime.of(2024, 12, 30, 12, 0),
+                        Classification.ANDROID, RoomStatus.OPENED));
+        Room room5 = roomRepository.save(
+                new Room("방 제목 5", "방 설명 5", 3,
+                        null, null, "TDD",
+                        1, 20, member5,
+                        LocalDateTime.of(2024, 12, 25, 12, 0),
+                        LocalDateTime.of(2024, 12, 30, 12, 0),
+                        Classification.FRONTEND, RoomStatus.OPENED));
+        Room room6 = roomRepository.save(
+                new Room("방 제목 6", "방 설명 6", 3,
+                        null, null, "TDD",
+                        1, 20, member6,
+                        LocalDateTime.of(2024, 12, 25, 12, 0),
+                        LocalDateTime.of(2024, 12, 30, 12, 0),
+                        Classification.FRONTEND, RoomStatus.OPENED));
+        Room room7 = roomRepository.save(
+                new Room("방 제목 7", "방 설명 7", 3,
+                        null, null, "TDD",
+                        1, 20, member7,
+                        LocalDateTime.of(2024, 12, 25, 12, 0),
+                        LocalDateTime.of(2024, 12, 30, 12, 0),
+                        Classification.FRONTEND, RoomStatus.OPENED));
+
+        participationRepository.save(new Participation(room1.getId(), member2.getId()));
+        participationRepository.save(new Participation(room1.getId(), member3.getId()));
+
+        participationRepository.save(new Participation(room2.getId(), member3.getId()));
+        participationRepository.save(new Participation(room2.getId(), member4.getId()));
+
+        participationRepository.save(new Participation(room3.getId(), member4.getId()));
+        participationRepository.save(new Participation(room3.getId(), member5.getId()));
+
+        participationRepository.save(new Participation(room4.getId(), member5.getId()));
+        participationRepository.save(new Participation(room4.getId(), member6.getId()));
+
+        participationRepository.save(new Participation(room5.getId(), member6.getId()));
+        participationRepository.save(new Participation(room5.getId(), member7.getId()));
+
+        participationRepository.save(new Participation(room6.getId(), member1.getId()));
+        participationRepository.save(new Participation(room6.getId(), member7.getId()));
+
+        participationRepository.save(new Participation(room7.getId(), member1.getId()));
+        participationRepository.save(new Participation(room7.getId(), member2.getId()));
+    }
+}

backend/src/main/java/corea/WebConfig.java

@@ -1,5 +1,6 @@
 package corea;
 
+import corea.auth.resolver.AccessedMemberArgumentResolver;
 import corea.auth.resolver.LoginMemberArgumentResolver;
 import lombok.RequiredArgsConstructor;
 import org.springframework.context.annotation.Configuration;
@@ -14,6 +15,7 @@
 public class WebConfig implements WebMvcConfigurer {
 
     private final LoginMemberArgumentResolver loginMemberArgumentResolver;
+    private final AccessedMemberArgumentResolver accessedMemberArgumentResolver;
 
     @Override
     public void addCorsMappings(CorsRegistry registry) {
@@ -27,5 +29,6 @@ public void addCorsMappings(CorsRegistry registry) {
     @Override
     public void addArgumentResolvers(List<HandlerMethodArgumentResolver> resolvers) {
         resolvers.add(loginMemberArgumentResolver);
+        resolvers.add(accessedMemberArgumentResolver);
     }
 }

backend/src/main/java/corea/auth/annotation/AccessedMember.java

@@ -0,0 +1,14 @@
+package corea.auth.annotation;
+
+import io.swagger.v3.oas.annotations.Hidden;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Target(ElementType.PARAMETER)
+@Retention(RetentionPolicy.RUNTIME)
+@Hidden()
+public @interface AccessedMember {
+}

backend/src/main/java/corea/auth/resolver/AccessedMemberArgumentResolver.java

@@ -0,0 +1,36 @@
+package corea.auth.resolver;
+
+import corea.auth.RequestHandler;
+import corea.auth.annotation.AccessedMember;
+import corea.member.domain.Member;
+import corea.member.repository.MemberRepository;
+import jakarta.servlet.http.HttpServletRequest;
+import lombok.RequiredArgsConstructor;
+import org.springframework.core.MethodParameter;
+import org.springframework.stereotype.Component;
+import org.springframework.web.bind.support.WebDataBinderFactory;
+import org.springframework.web.context.request.NativeWebRequest;
+import org.springframework.web.method.support.HandlerMethodArgumentResolver;
+import org.springframework.web.method.support.ModelAndViewContainer;
+
+@Component
+@RequiredArgsConstructor
+public class AccessedMemberArgumentResolver implements HandlerMethodArgumentResolver {
+
+    private final RequestHandler requestHandler;
+    private final MemberRepository memberRepository;
+
+    @Override
+    public boolean supportsParameter(MethodParameter parameter) {
+        return parameter.hasParameterAnnotation(AccessedMember.class);
+    }
+
+    @Override
+    public Member resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer,
+                                  NativeWebRequest webRequest, WebDataBinderFactory binderFactory) {
+        HttpServletRequest request = (HttpServletRequest) webRequest.getNativeRequest();
+
+        return memberRepository.findByEmail(requestHandler.extract(request))
+                .orElse(null);
+    }
+}

backend/src/main/java/corea/auth/resolver/LoginMemberArgumentResolver.java

@@ -29,13 +29,12 @@ public boolean supportsParameter(MethodParameter parameter) {
     }
 
     @Override
-    public AuthInfo resolveArgument(MethodParameter parameter,
-                                    ModelAndViewContainer mavContainer,
-                                    NativeWebRequest webRequest,
-                                    WebDataBinderFactory binderFactory) {
+    public AuthInfo resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer,
+                                    NativeWebRequest webRequest, WebDataBinderFactory binderFactory) {
         HttpServletRequest request = (HttpServletRequest) webRequest.getNativeRequest();
         Member member = memberRepository.findByEmail(requestHandler.extract(request))
                 .orElseThrow(()-> new CoreaException(ExceptionType.AUTHORIZATION_ERROR));
+
         return AuthInfo.from(member);
     }
 }

backend/src/main/java/corea/room/controller/RoomController.java

@@ -1,16 +1,15 @@
 package corea.room.controller;
 
+import corea.auth.annotation.AccessedMember;
 import corea.auth.annotation.LoginMember;
 import corea.auth.domain.AuthInfo;
+import corea.member.domain.Member;
 import corea.room.dto.RoomResponse;
 import corea.room.dto.RoomResponses;
 import corea.room.service.RoomService;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.PathVariable;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.*;
 
 @RestController
 @RequestMapping("/rooms")
@@ -36,4 +35,16 @@ public ResponseEntity<RoomResponses> participatedRooms(@LoginMember AuthInfo aut
         RoomResponses response = roomService.findParticipatedRooms(authInfo.getId());
         return ResponseEntity.ok(response);
     }
+
+    @GetMapping("/opened")
+    public ResponseEntity<RoomResponses> openedRooms(@AccessedMember Member member,
+                                                     @RequestParam(value = "classification", defaultValue = "all") String expression,
+                                                     @RequestParam(defaultValue = "0") int page) {
+        if (member == null) {
+            RoomResponses response = roomService.findOpenedRoomsWithoutMember(expression, page);
+            return ResponseEntity.ok(response);
+        }
+        RoomResponses response = roomService.findOpenedRoomsWithMember(member.getId(), expression, page);
+        return ResponseEntity.ok(response);
+    }
 }

backend/src/main/java/corea/room/domain/Classification.java

@@ -0,0 +1,38 @@
+package corea.room.domain;
+
+import corea.exception.CoreaException;
+import corea.exception.ExceptionType;
+
+import java.util.Arrays;
+import java.util.Map;
+import java.util.function.Function;
+
+import static java.util.stream.Collectors.toMap;
+
+public enum Classification {
+
+    ALL("all"),
+    ANDROID("an"),
+    BACKEND("be"),
+    FRONTEND("fe");
+
+    private static final Map<String, Classification> CACHED_CLASSIFICATIONS = Arrays.stream(values())
+            .collect(toMap(classification -> classification.expression, Function.identity()));
+
+    private final String expression;
+
+    Classification(String expression) {
+        this.expression = expression;
+    }
+
+    public static Classification from(String expression) {
+        if (CACHED_CLASSIFICATIONS.containsKey(expression)) {
+            return CACHED_CLASSIFICATIONS.get(expression);
+        }
+        throw new CoreaException(ExceptionType.NOT_FOUND_ERROR);
+    }
+
+    public boolean isAll() {
+        return this == ALL;
+    }
+}

backend/src/main/java/corea/room/domain/Room.java

@@ -40,15 +40,29 @@ public class Room {
     private int limitedParticipantsSize;
 
     @ManyToOne(fetch = FetchType.LAZY)
-    @JoinColumn(name = "manager_id",foreignKey = @ForeignKey(ConstraintMode.NO_CONSTRAINT))
+    @JoinColumn(name = "manager_id", foreignKey = @ForeignKey(ConstraintMode.NO_CONSTRAINT))
     private Member manager;
 
     private LocalDateTime recruitmentDeadline;
 
     private LocalDateTime reviewDeadline;
 
-    public Room(String title, String content, int matchingSize, String repositoryLink, String thumbnailLink, String keyword, int currentParticipantsSize, int limitedParticipantsSize, Member manager, LocalDateTime recruitmentDeadline, LocalDateTime reviewDeadline) {
-        this(null, title, content, matchingSize, repositoryLink, thumbnailLink, keyword, currentParticipantsSize, limitedParticipantsSize, manager, recruitmentDeadline, reviewDeadline);
+    @Enumerated(value = EnumType.STRING)
+    private Classification classification;
+
+    /**
+     * RoomStatus가 변경될 수 있는 경우 (OPENED -> CLOSED)
+     * 1. 방장이 모집 마감을 한 경우
+     * 2. 제한 인원이 다 찼을 경우 (방에 참여할 때 같이 검증)
+     * 3. 모집 기간이 끝난 경우
+     *
+     * 1, 2의 경우 때문에 방 상태를 가지는 필드를 가져야 될듯.
+     * **/
+    @Enumerated(value = EnumType.STRING)
+    private RoomStatus status;
+
+    public Room(String title, String content, int matchingSize, String repositoryLink, String thumbnailLink, String keyword, int currentParticipantsSize, int limitedParticipantsSize, Member manager, LocalDateTime recruitmentDeadline, LocalDateTime reviewDeadline, Classification classification, RoomStatus status) {
+        this(null, title, content, matchingSize, repositoryLink, thumbnailLink, keyword, currentParticipantsSize, limitedParticipantsSize, manager, recruitmentDeadline, reviewDeadline, classification, status);
     }
 }
 

backend/src/main/java/corea/room/domain/RoomStatus.java

@@ -0,0 +1,6 @@
+package corea.room.domain;
+
+public enum RoomStatus {
+
+    OPENED, CLOSED
+}

backend/src/main/java/corea/room/dto/RoomCreateRequest.java

@@ -1,7 +1,9 @@
 package corea.room.dto;
 
 import corea.member.domain.Member;
+import corea.room.domain.Classification;
 import corea.room.domain.Room;
+import corea.room.domain.RoomStatus;
 
 import java.time.LocalDateTime;
 
@@ -16,13 +18,16 @@ public record RoomCreateRequest(
         int currentParticipantsSize,
         int limitedParticipantsSize,
         LocalDateTime recruitmentDeadline,
-        LocalDateTime reviewDeadline
+        LocalDateTime reviewDeadline,
+        Classification classification,
+        RoomStatus status
 ) {
 
     public Room toEntity() {
         return new Room(title, content, matchingSize,
                 repositoryLink, thumbnailLink, keyword,
                 currentParticipantsSize, limitedParticipantsSize, manager,
-                recruitmentDeadline, reviewDeadline);
+                recruitmentDeadline, reviewDeadline, classification,
+                status);
     }
 }

backend/src/main/java/corea/room/dto/RoomResponses.java

@@ -1,6 +1,7 @@
 package corea.room.dto;
 
 import corea.room.domain.Room;
+import org.springframework.data.domain.Page;
 
 import java.util.List;
 
@@ -14,4 +15,8 @@ public static RoomResponses from(List<Room> rooms) {
                 .map(RoomResponse::from)
                 .collect(collectingAndThen(toList(), RoomResponses::new));
     }
+
+    public static RoomResponses from(Page<Room> roomsWithPage) {
+        return from(roomsWithPage.getContent());
+    }
 }