Feat(Matching) : /api/match/peson 개발, 코드 리팩토링, 예외처리 등

withmate/src/main/java/com/gdscewha/withmate/domain/matching/controller/MatchingController.java

@@ -7,6 +7,7 @@
 import com.gdscewha.withmate.domain.matching.service.MatchingService;
 import com.gdscewha.withmate.domain.member.entity.Member;
 import com.gdscewha.withmate.domain.member.service.MemberService;
+import com.gdscewha.withmate.domain.model.Category;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
@@ -38,10 +39,19 @@ public ResponseEntity<?> getMatchingInfo() {
         return ResponseEntity.ok().body(resDto);
     }
 
-    // 매핑 가능한 사람 보기 (카테고리 순서대로 반환됨)
+    // 특정 카테고리의 매칭 가능한 사람 1명 보기
+    @GetMapping("/match/person")
+    public ResponseEntity<?> getPersonMatching(@RequestParam Category category) {
+        MatchingResDto matchingResDto = matchingService.getMatchingByCategory(category);
+        if (matchingResDto == null)
+            return ResponseEntity.ok().body("매칭 가능한 상대방이 없습니다"); // 사람이 없음; 매칭 대기 띄워야 함
+        return ResponseEntity.ok().body(matchingResDto);
+    }
+
+    // 매칭 가능한 사람들 모두 보기 (카테고리 순서대로 반환됨)
     @GetMapping("/match/people")
     public ResponseEntity<?> getPeopleMatching() {
-        List<MatchingResDto> matchingList = matchingService.getPeopleMatching();
+        List<MatchingResDto> matchingList = matchingService.getCurrentMatchingList();
         if (matchingList.isEmpty())
             return ResponseEntity.ok().body("매칭 가능한 상대방이 없습니다"); // 사람이 없음; 매칭 대기 띄워야 함
         return ResponseEntity.ok().body(matchingList);
@@ -55,6 +65,8 @@ public ResponseEntity<?> postNewMatchingRelation(@RequestBody MatchingInputDto r
             return ResponseEntity.badRequest().body("목표 혹은 카테고리가 비어있습니다.");
         // 정상적으로 매칭 맺기 가능
         MatchedResultDto resultDto = matchingService.getMatchedResult(reqDto);
+        if (resultDto == null)
+            return ResponseEntity.badRequest().body("매칭할 메이트가 없거나, 내가 매칭 불가능한 상태입니다.");
         return ResponseEntity.ok().body(resultDto);
     }
 
@@ -66,6 +78,8 @@ public ResponseEntity<?> updateMatchingInfo(@RequestBody MatchingInputDto reqDto
             return ResponseEntity.badRequest().body("목표 혹은 카테고리가 비어있습니다.");
         // 정상적으로 매칭 생성/업데이트 가능
         Matching matching = matchingService.createOrUpdateMatching(reqDto);
+        if (matching == null)
+            return ResponseEntity.badRequest().body("이미 메이트가 있습니다.");
         return ResponseEntity.ok().body(matching);
     }
 

withmate/src/main/java/com/gdscewha/withmate/domain/matching/dto/MatchedResultDto.java

@@ -6,6 +6,7 @@
 import lombok.Builder;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
+import org.springframework.data.util.Pair;
 
 import java.util.List;
 
@@ -23,12 +24,12 @@ public class MatchedResultDto {
     private Category category2;
 
     // List<Matching>을 받는 생성자
-    public MatchedResultDto(List<Matching> matching) {
-        this.nickname1 = matching.get(0).getMember().getNickname();
-        this.goal1 = matching.get(0).getGoal();
-        this.category1 = matching.get(0).getCategory();
-        this.nickname2 = matching.get(1).getMember().getNickname();
-        this.goal2 = matching.get(1).getGoal();
-        this.category2 = matching.get(1).getCategory();
+    public MatchedResultDto(Pair<Matching, Matching> matchedPair) {
+        this.nickname1 = matchedPair.getFirst().getMember().getNickname();
+        this.goal1 = matchedPair.getFirst().getGoal();
+        this.category1 = matchedPair.getFirst().getCategory();
+        this.nickname2 = matchedPair.getSecond().getMember().getNickname();
+        this.goal2 = matchedPair.getSecond().getGoal();
+        this.category2 = matchedPair.getSecond().getCategory();
     }
 }

withmate/src/main/java/com/gdscewha/withmate/domain/matching/service/MatchingService.java

@@ -1,9 +1,7 @@
 package com.gdscewha.withmate.domain.matching.service;
 
-import com.gdscewha.withmate.common.response.exception.CategoryException;
 import com.gdscewha.withmate.common.response.exception.ErrorCode;
 import com.gdscewha.withmate.common.response.exception.MatchingException;
-import com.gdscewha.withmate.domain.journey.entity.Journey;
 import com.gdscewha.withmate.domain.journey.service.JourneyService;
 import com.gdscewha.withmate.domain.matching.dto.MatchedResultDto;
 import com.gdscewha.withmate.domain.matching.dto.MatchingInputDto;
@@ -17,10 +15,10 @@
 import com.gdscewha.withmate.domain.model.Category;
 import com.gdscewha.withmate.domain.relation.entity.Relation;
 import com.gdscewha.withmate.domain.relation.service.RelationMateService;
-import com.gdscewha.withmate.domain.sticker.service.StickerService;
-import com.gdscewha.withmate.domain.week.entity.Week;
 import com.gdscewha.withmate.domain.week.service.WeekService;
 import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.data.util.Pair;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
@@ -29,6 +27,7 @@
 import java.util.Optional;
 import java.util.stream.Collectors;
 
+@Slf4j
 @Service
 @RequiredArgsConstructor
 public class MatchingService {
@@ -41,8 +40,6 @@ public class MatchingService {
     // Relation 만들 때 필요한 Service들
     private final JourneyService journeyService;
     private final WeekService weekService;
-    private final StickerService stickerService;
-
 
     // 내 매칭 받아오기 (MatchingResDto 반환, 존재하지 않으면 null 반환)
     public MatchingInputDto getCurrentMatchingDto() {
@@ -64,6 +61,8 @@ public Boolean checkMatchingAvailability(MatchingInputDto reqDto) {
     // 내 매칭을 생성 혹은 기존 매칭 업데이트
     public Matching createOrUpdateMatching(MatchingInputDto reqDto) {
         Member member = memberService.getCurrentMember();
+        if (member.getIsRelationed())
+            return null;
         if (member.getMatching() == null) {
             // 매칭한 적 없을 때 생성
             return createMatching(member, reqDto);
@@ -105,18 +104,17 @@ public String deleteMyMatching() {
         return "취소할 Matching이 없습니다.";
     }
 
-    // 매칭 삭제
-    public Member deleteMatching(Member member) {
-        if (member.getMatching() != null) {
-            matchingRepository.delete(member.getMatching());
-            member.setMatching(null);
-            memberRepository.save(member);
-        }
-        return member;
+    // 특정 카테고리의 매칭중인 사람 1명을 반환
+    public MatchingResDto getMatchingByCategory(Category category) {
+        List<Matching> matchingList = matchingRepository.findAllByCategory(category);
+        if (matchingList == null || matchingList.isEmpty())
+            return null;
+        Member member = memberRepository.findMemberByMatching(matchingList.get(0));
+        return new MatchingResDto(matchingList.get(0), member);
     }
 
     // 모든 카테고리의 매칭중인 사람들을 조회
-    public List<MatchingResDto> getPeopleMatching() {
+    public List<MatchingResDto> getCurrentMatchingList() {
         Category[] categories = Category.values();
         List<MatchingResDto> matchingResList = new ArrayList<>();
         for (Category c : categories) {
@@ -136,50 +134,54 @@ public List<MatchingResDto> convertToMatchingResDtoList(List<Matching> matchingL
 
     // tryMatching로부터 생성되는 매칭 결과를 컨트롤러에 반환
     public MatchedResultDto getMatchedResult(MatchingInputDto reqDto) {
-        Matching myMatching = createOrUpdateMatching(reqDto);   // 내 매칭 생성
-        List<Matching> matchingList = relateMatesByCategory(reqDto.getCategory(), myMatching);  // 카테고리로 Mates 관계 맺기
-        return new MatchedResultDto(matchingList);
+        Pair<Matching, Matching> matchingPair = relateMatesByCategory(reqDto.getCategory(), reqDto); // 카테고리로 Mates 관계 맺기
+        if (matchingPair == null)
+            return null;
+        return new MatchedResultDto(matchingPair);
     }
 
     // Matching으로 Mates 관계 맺기
     @Transactional
-    public List<Matching> relateMatesByCategory(Category category, Matching myMatching) {
-        if (category == null)
-            throw new CategoryException(ErrorCode.CATEGORY_NOT_FOUND);
+    public Pair<Matching, Matching> relateMatesByCategory(Category category, MatchingInputDto reqDto) {
+        Member me = memberService.getCurrentMember();
+        if (me.getIsRelationed()) {
+            log.info("멤버: isRelationed");
+            return null;
+        }
+        if (me.getMatching().equals(null)){
+            log.info("멤버: matched");
+            return null;
+        }
         // 같은 카테고리의 Matching 리스트
         List<Matching> matchingList = matchingRepository.findAllByCategory(category);
-        // matchingList에 2개 이상이어야 매칭 가능
-        if (matchingList.size() >= 2){
+        // matchingList에 1개 이상이어야 매칭 가능 (내 매칭은 db에 저장하지 않음)
+        if (matchingList.size() >= 1){
             Matching mateMatching = matchingList.get(0);
             Member mate = memberRepository.findMemberByMatching(mateMatching);
-            Member me = memberService.getCurrentMember();
-            // mate 탈퇴시 matching도 삭제되므로 유효한 멤버
-
-            List<Matching> mateList = new ArrayList<>(); // 메이트 리스트
-            mateList.add(mateMatching);
-            mateList.add(myMatching);
-            List<Member> memberList = new ArrayList<>();
-            memberList.add(mate);
-            memberList.add(me);
+            if (mate == null || mateMatching == null)
+                throw new MatchingException(ErrorCode.MATCHING_NOT_FOUND);
+            Matching myMatching = Matching.builder() // 내 매칭 생성 (DB에 저장 X)
+                    .goal(reqDto.getGoal())
+                    .category(reqDto.getCategory())
+                    .member(me)
+                    .build();
+            Pair<Matching, Matching> matchingPair = Pair.of(mateMatching, myMatching);
+            Pair<Member, Member> memberPair = Pair.of(mate, me);
 
             // Relation 생성, MemberRelationPair 생성
             Relation relation = relationMateService.createRelation();
-            memberRelationService.createMemberRelationPair(mateList, memberList, relation);
+            memberRelationService.createMemberRelationPair(matchingPair, memberPair, relation);
 
             // 첫번째 Journey 생성
-            Journey journey = journeyService.createJourney(relation);
+            journeyService.createJourney(relation);
             // 첫번째 Week 생성
-            Week week = weekService.createWeek();
-
+            weekService.createWeek();
             // Member들의 isRelationed를 true로 업데이트 후 저장
             mate.setIsRelationed(true);
             me.setIsRelationed(true);
-
-            // 각 멤버에 Matching null로, Matching 삭제
-            memberRepository.save(deleteMatching(mate));
-            memberRepository.save(deleteMatching(me));
-            // 수정된 Matching 리스트 반환
-            return mateList;
+            // Mate의 매칭 삭제
+            matchingRepository.delete(mateMatching);
+            return matchingPair;
         } else {
             throw new MatchingException(ErrorCode.MATCHING_NOT_FOUND);
         }

withmate/src/main/java/com/gdscewha/withmate/domain/memberrelation/service/MemberRelationService.java

@@ -9,6 +9,7 @@
 import com.gdscewha.withmate.domain.memberrelation.repository.MemberRelationRepository;
 import com.gdscewha.withmate.domain.relation.entity.Relation;
 import lombok.RequiredArgsConstructor;
+import org.springframework.data.util.Pair;
 import org.springframework.stereotype.Service;
 
 import java.util.List;
@@ -52,22 +53,19 @@ public MemberRelation findLastMROfMember(Member member) {
     }
 
     // MR 두 개 만들고 저장, 두 Member의 isRelationed는 MatchingService에서 바꿔줌
-    public void createMemberRelationPair(List<Matching> matchingList, List<Member> memberList, Relation relation){
-        Matching matching1 = matchingList.get(0);
-        Matching matching2 = matchingList.get(1);
-
+    public void createMemberRelationPair(Pair<Matching, Matching> matchingPair, Pair<Member, Member> memberPair, Relation relation){
         MemberRelation myMR = MemberRelation.builder()
-                .goal(matching1.getGoal())
-                .category(matching1.getCategory())
+                .goal(matchingPair.getFirst().getGoal())
+                .category(matchingPair.getFirst().getCategory())
                 // message is nullable
-                .member(memberList.get(0))
+                .member(memberPair.getFirst())
                 .relation(relation)
                 .build();
         MemberRelation mateMR = MemberRelation.builder()
-                .goal(matching2.getGoal())
-                .category(matching2.getCategory())
+                .goal(matchingPair.getSecond().getGoal())
+                .category(matchingPair.getSecond().getCategory())
                 // message is nullable
-                .member(memberList.get(1))
+                .member(memberPair.getSecond())
                 .relation(relation)
                 .build();
         mRRepository.save(myMR);

withmate/src/main/java/com/gdscewha/withmate/domain/week/service/WeekService.java

@@ -39,7 +39,7 @@ public Week createWeek() {
     public Week updateStickerCountOfCurrentWeek(Long diff){
         Member member = memberService.getCurrentMember();
         Week week = getCurrentWeek(member);
-        if(week == null)
+        if (week == null)
             throw new WeekException(ErrorCode.WEEK_NOT_FOUND);
         Long newStickerCount = week.getStickerCount() + diff;
         if (newStickerCount < 0)