⏺✨ Feat: 매칭 취소 및 재참여 기능

Author: 안훈기

src/main/java/com/be/sportizebe/domain/match/controller/MatchController.java

@@ -19,6 +19,7 @@
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.web.bind.annotation.DeleteMapping;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.ModelAttribute;
 import org.springframework.web.bind.annotation.PathVariable;
@@ -68,6 +69,16 @@ public ResponseEntity<BaseResponse<MatchDetailResponse>> getMatchDetail(
         return ResponseEntity.ok(BaseResponse.success("매칭 상세 조회 성공", response));
     }
 
+    @Operation(summary = "매칭 취소")
+    @DeleteMapping("/{matchId}/leave")
+    public ResponseEntity<BaseResponse<Void>> leaveMatch(
+            @PathVariable Long matchId,
+            @AuthenticationPrincipal UserAuthInfo userAuthInfo
+    ) {
+        matchService.leaveMatch(matchId, userAuthInfo.getId());
+        return ResponseEntity.ok(BaseResponse.success("매칭 취소 성공", null));
+    }
+
     @Operation(summary = "내 주변 매칭 목록 조회", description = "매칭상태가 OPEN인 매칭들만 보여준다.")
     @GetMapping("/near")
     public ResponseEntity<BaseResponse<List<MatchNearResponse>>> getNearMatches(

src/main/java/com/be/sportizebe/domain/match/dto/request/MatchCreateRequest.java

@@ -16,6 +16,13 @@ public record MatchCreateRequest(
 
         @Schema(description = "최대 참여 인원 수", example = "10")
         @Min(2) @Max(20)
-        Integer maxMembers
+        Integer maxMembers,
+
+        @Schema(description = "몇 분동안 진행되는 매칭인지", example = "120")
+        int durationMinutes,
+
+        @Schema(description = "매칭 참여 요금", example = "4000")
+        @Min(value = 1000, message = "참가비는 1000원 이상이어야 합니다.")
+        int entryFee
 
 ) {}

src/main/java/com/be/sportizebe/domain/match/dto/response/MatchNearResponse.java

@@ -12,7 +12,10 @@ public record MatchNearResponse(
         int curMembers,
         int maxMembers,
         MatchStatus status,
-        int distanceM
+        int distanceM,
+        int durationMinutes,
+        int entryFee
+
 ) {
     public static MatchNearResponse from(MatchNearProjection p) {
         return new MatchNearResponse(
@@ -23,7 +26,10 @@ public static MatchNearResponse from(MatchNearProjection p) {
                 p.getCurMembers(),
                 p.getMaxMembers(),
                 MatchStatus.valueOf(p.getStatus()),
-                (int) Math.round(p.getDistanceM())
+                (int) Math.round(p.getDistanceM()),
+                p.getDurationMinutes(),
+                p.getEntryFee()
+
         );
     }
 }

src/main/java/com/be/sportizebe/domain/match/entity/MatchParticipant.java

@@ -59,4 +59,10 @@ public void leave() {
     public boolean isJoined() {
         return this.status == MatchParticipantStatus.JOINED;
     }
+
+    public void rejoin() {
+        this.status = MatchParticipantStatus.JOINED;
+        this.joinedAt = LocalDateTime.now();
+        this.leftAt = null;
+    }
 }

src/main/java/com/be/sportizebe/domain/match/entity/MatchParticipantStatus.java

@@ -1,5 +1,6 @@
 package com.be.sportizebe.domain.match.entity;
 
 public enum MatchParticipantStatus {
-    JOINED, LEFT
+    JOINED,
+    LEFT
 }

src/main/java/com/be/sportizebe/domain/match/entity/MatchRoom.java

@@ -39,6 +39,13 @@ public class MatchRoom extends BaseTimeEntity {
     @Column(nullable = false)
     private MatchStatus status;
 
+    @Column(nullable = false)
+    private int durationMinutes;
+
+    @Column(nullable = false)
+    private int entryFee;
+
+
     @OneToMany(mappedBy = "matchRoom", cascade = CascadeType.ALL, orphanRemoval = true)
     @Builder.Default
     private List<MatchParticipant> participants = new ArrayList<>();
@@ -54,6 +61,18 @@ public static MatchRoom create(MatchCreateRequest request) {
                 .curMembers(0)
                 .maxMembers(request.maxMembers())
                 .status(MatchStatus.OPEN)
+                .durationMinutes(request.durationMinutes())
+                .entryFee(request.entryFee())
                 .build();
     }
+    public void join() {
+        this.curMembers++;
+        if (isFull()) this.status = MatchStatus.FULL;
+    }
+    public void leave() {
+        this.curMembers--;
+        if (this.status == MatchStatus.FULL) this.status = MatchStatus.OPEN;
+    }
+
+
 }

src/main/java/com/be/sportizebe/domain/match/exception/MatchErrorCode.java

@@ -23,6 +23,12 @@ public enum MatchErrorCode implements BaseErrorCode {
             HttpStatus.BAD_REQUEST,
             "MATCH_400_ALREADY_JOINED",
             "이미 해당 매칭에 참가 중입니다."
+    ),
+
+    NOT_JOINED(
+            HttpStatus.BAD_REQUEST,
+            "MATCH_400_NOT_JOINED",
+            "해당 매칭에 참가 중이지 않습니다."
     );
 
     private final HttpStatus status;

src/main/java/com/be/sportizebe/domain/match/repository/MatchParticipantRepository.java

@@ -7,6 +7,7 @@
 import org.springframework.data.jpa.repository.JpaRepository;
 
 import java.util.List;
+import java.util.Optional;
 
 public interface MatchParticipantRepository extends JpaRepository<MatchParticipant, Long> {
 
@@ -18,4 +19,10 @@ public interface MatchParticipantRepository extends JpaRepository<MatchParticipa
 
     // 주어진 방에 참여중인 참가자 리스트 전체 조회
     List<MatchParticipant> findAllByMatchRoomAndStatus(MatchRoom matchRoom, MatchParticipantStatus status);
+
+    // 특정 유저의 특정 매칭방 참가 이력 단건 조회 (상태 포함)
+    Optional<MatchParticipant> findByMatchRoomAndUserAndStatus(MatchRoom matchRoom, User user, MatchParticipantStatus status);
+
+    // 특정 유저의 특정 매칭방 참가 이력 단건 조회 (상태 무관)
+    Optional<MatchParticipant> findByMatchRoomAndUser(MatchRoom matchRoom, User user);
 }

src/main/java/com/be/sportizebe/domain/match/repository/MatchRoomRepository.java

@@ -19,6 +19,9 @@ public interface MatchRoomRepository extends JpaRepository<MatchRoom, Long> {
             mr.cur_members  AS curMembers,
             mr.max_members  AS maxMembers,
             mr.status       AS status,
+            mr.duration_minutes AS durationMinutes,
+            mr.entry_fee        AS entryFee,
+                    
             ST_Distance(
                 sf.location,
                 ST_SetSRID(ST_MakePoint(:lng, :lat), 4326)::geography

src/main/java/com/be/sportizebe/domain/match/repository/projection/MatchNearProjection.java

@@ -9,4 +9,6 @@ public interface MatchNearProjection {
     Integer getMaxMembers();
     String getStatus();
     Double getDistanceM();
+    Integer getDurationMinutes();
+    Integer getEntryFee();
 }