[Feat] 커뮤니티 기능

.gitignore

@@ -36,3 +36,5 @@ out/
 
 ### VS Code ###
 .vscode/
+
+.env

src/main/java/com/cokerthon/Team3_Backend/domain/auth/controller/AuthController.java

@@ -3,7 +3,7 @@
 import com.cokerthon.Team3_Backend.domain.auth.dto.request.LoginRequest;
 import com.cokerthon.Team3_Backend.domain.auth.dto.request.SignupRequest;
 import com.cokerthon.Team3_Backend.domain.auth.dto.response.AuthResponse;
-import com.cokerthon.Team3_Backend.domain.auth.exception.AuthSuccessCode;
+import com.cokerthon.Team3_Backend.domain.auth.exception.code.AuthSuccessCode;
 import com.cokerthon.Team3_Backend.domain.auth.service.AuthService;
 import com.cokerthon.Team3_Backend.global.apiPayload.ApiResponse;
 import io.swagger.v3.oas.annotations.Operation;

src/main/java/com/cokerthon/Team3_Backend/domain/auth/exception/AuthErrorCode.java → src/main/java/com/cokerthon/Team3_Backend/domain/auth/exception/code/AuthErrorCode.java

@@ -1,10 +1,11 @@
-package com.cokerthon.Team3_Backend.domain.auth.exception;
+package com.cokerthon.Team3_Backend.domain.auth.exception.code;
 
-import com.cokerthon.Team3_Backend.global.apiPayload.code.BaseErrorCode;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 import org.springframework.http.HttpStatus;
 
+import com.cokerthon.Team3_Backend.global.apiPayload.code.BaseErrorCode;
+
 @Getter
 @AllArgsConstructor
 public enum AuthErrorCode implements BaseErrorCode {

src/main/java/com/cokerthon/Team3_Backend/domain/auth/exception/AuthSuccessCode.java → src/main/java/com/cokerthon/Team3_Backend/domain/auth/exception/code/AuthSuccessCode.java

@@ -1,10 +1,11 @@
-package com.cokerthon.Team3_Backend.domain.auth.exception;
+package com.cokerthon.Team3_Backend.domain.auth.exception.code;
 
-import com.cokerthon.Team3_Backend.global.apiPayload.code.BaseSuccessCode;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 import org.springframework.http.HttpStatus;
 
+import com.cokerthon.Team3_Backend.global.apiPayload.code.BaseSuccessCode;
+
 @Getter
 @AllArgsConstructor
 public enum AuthSuccessCode implements BaseSuccessCode {

src/main/java/com/cokerthon/Team3_Backend/domain/auth/service/AuthService.java

@@ -3,7 +3,7 @@
 import com.cokerthon.Team3_Backend.domain.auth.dto.request.LoginRequest;
 import com.cokerthon.Team3_Backend.domain.auth.dto.request.SignupRequest;
 import com.cokerthon.Team3_Backend.domain.auth.dto.response.AuthResponse;
-import com.cokerthon.Team3_Backend.domain.auth.exception.AuthErrorCode;
+import com.cokerthon.Team3_Backend.domain.auth.exception.code.AuthErrorCode;
 import com.cokerthon.Team3_Backend.domain.auth.exception.AuthException;
 import com.cokerthon.Team3_Backend.domain.user.entity.User;
 import com.cokerthon.Team3_Backend.domain.user.repository.UserRepository;

src/main/java/com/cokerthon/Team3_Backend/domain/community/controller/CommunityController.java

@@ -0,0 +1,47 @@
+package com.cokerthon.Team3_Backend.domain.community.controller;
+
+import java.util.List;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+import com.cokerthon.Team3_Backend.domain.community.dto.response.CommunityResDto;
+import com.cokerthon.Team3_Backend.domain.community.service.CommunityService;
+import com.cokerthon.Team3_Backend.domain.emotion.dto.response.LikeResDto;
+import com.cokerthon.Team3_Backend.domain.emotion.service.EmotionLikeService;
+import com.cokerthon.Team3_Backend.domain.user.entity.User;
+import com.cokerthon.Team3_Backend.global.apiPayload.ApiResponse;
+import com.cokerthon.Team3_Backend.global.apiPayload.code.GeneralSuccessCode;
+import com.cokerthon.Team3_Backend.global.security.CurrentUser;
+
+import io.swagger.v3.oas.annotations.Operation;
+import lombok.RequiredArgsConstructor;
+
+@RestController
+@RequestMapping("/api/community")
+@RequiredArgsConstructor
+public class CommunityController {
+
+	private final CommunityService communityService;
+	private final EmotionLikeService emotionLikeService;
+
+	@GetMapping
+	@Operation(summary = "공개 감정 글 목록 조회", description = "공개(PUBLIC)로 설정된 모든 사용자의 감정 글을 최신순으로 조회")
+	public ApiResponse<List<CommunityResDto>> getCommunityList() {
+		List<CommunityResDto> response = communityService.getCommunityList();
+		return ApiResponse.onSuccess(GeneralSuccessCode.OK, response);
+	}
+
+	@PostMapping("/like")
+	@Operation(summary = "힘내요 토글", description = "emotionId를 파라미터로 받아 힘내요를 등록하거나 취소합니다.")
+	public ApiResponse<LikeResDto> toggleLike(
+		@RequestParam(name = "emotionId") Long emotionId,
+		@CurrentUser User user
+	) {
+		LikeResDto result = emotionLikeService.toggleLike(user, emotionId);
+		return ApiResponse.onSuccess(GeneralSuccessCode.OK, result);
+	}
+}

src/main/java/com/cokerthon/Team3_Backend/domain/community/dto/response/CommunityResDto.java

@@ -0,0 +1,32 @@
+package com.cokerthon.Team3_Backend.domain.community.dto.response;
+
+import java.time.LocalDateTime;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.validation.constraints.NotNull;
+import lombok.Builder;
+
+@Builder
+@Schema(description = "커뮤니티 조회 응답 DTO")
+public record CommunityResDto(
+
+	@Schema(description = "감정 글 ID")
+	@NotNull
+	Long id,
+
+	@Schema(description = "작성자 닉네임")
+	String nickname,
+
+	@Schema(description = "감정 점수")
+	int emotionScore,
+
+	@Schema(description = "감정 글 본문")
+	String content,
+
+	@Schema(description = "힘내요 수")
+	long likeCount,
+
+	@Schema(description = "작성 시간")
+	LocalDateTime createdAt
+) {
+}

src/main/java/com/cokerthon/Team3_Backend/domain/community/service/CommunityService.java

@@ -0,0 +1,24 @@
+package com.cokerthon.Team3_Backend.domain.community.service;
+
+import java.util.List;
+
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import com.cokerthon.Team3_Backend.domain.community.dto.response.CommunityResDto;
+import com.cokerthon.Team3_Backend.domain.emotion.repository.EmotionRecordRepository;
+
+import lombok.RequiredArgsConstructor;
+
+@Service
+@RequiredArgsConstructor
+public class CommunityService {
+
+	private final EmotionRecordRepository emotionRecordRepository;
+
+	@Transactional(readOnly = true)
+	public List<CommunityResDto> getCommunityList() {
+		return emotionRecordRepository.findAllCommunityPosts();
+	}
+
+}

src/main/java/com/cokerthon/Team3_Backend/domain/emotion/converter/EmotionLikeConverter.java

@@ -0,0 +1,18 @@
+package com.cokerthon.Team3_Backend.domain.emotion.converter;
+
+import com.cokerthon.Team3_Backend.domain.emotion.dto.response.LikeResDto;
+
+import lombok.experimental.UtilityClass;
+
+@UtilityClass
+public class EmotionLikeConverter {
+
+	public static LikeResDto toLikeResDto(Long emotionId, int currentLikeCount, boolean isLiked) {
+		return LikeResDto.builder()
+			.id(emotionId)
+			.likeCount(currentLikeCount)
+			.like(isLiked)
+			.build();
+	}
+
+}

src/main/java/com/cokerthon/Team3_Backend/domain/emotion/dto/response/LikeResDto.java

@@ -0,0 +1,19 @@
+package com.cokerthon.Team3_Backend.domain.emotion.dto.response;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Builder;
+
+@Builder
+@Schema(description = "감정 글 힘내요 응답 DTO")
+public record LikeResDto(
+
+	@Schema(description = "게시글 ID")
+	Long id,
+
+	@Schema(description = "힘내요 수")
+	int likeCount,
+
+	@Schema(description = "힘내요 여부")
+	boolean like
+) {
+}

src/main/java/com/cokerthon/Team3_Backend/domain/emotion/repository/EmotionLikeRepository.java

@@ -0,0 +1,16 @@
+package com.cokerthon.Team3_Backend.domain.emotion.repository;
+
+import java.util.Optional;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import com.cokerthon.Team3_Backend.domain.emotion.entity.EmotionLike;
+import com.cokerthon.Team3_Backend.domain.emotion.entity.EmotionRecord;
+import com.cokerthon.Team3_Backend.domain.user.entity.User;
+
+public interface EmotionLikeRepository extends JpaRepository<EmotionLike, Long> {
+
+	long countByEmotion(EmotionRecord emotion);
+
+	Optional<EmotionLike> findByUserAndEmotion(User user, EmotionRecord emotion);
+}

src/main/java/com/cokerthon/Team3_Backend/domain/emotion/repository/EmotionRecordRepository.java

@@ -0,0 +1,22 @@
+package com.cokerthon.Team3_Backend.domain.emotion.repository;
+
+import java.util.List;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+
+import com.cokerthon.Team3_Backend.domain.community.dto.response.CommunityResDto;
+import com.cokerthon.Team3_Backend.domain.emotion.entity.EmotionRecord;
+
+public interface EmotionRecordRepository extends JpaRepository<EmotionRecord, Long> {
+
+	@Query("SELECT new com.cokerthon.Team3_Backend.domain.community.dto.response.CommunityResDto(" +
+		"r.id, u.nickname, r.emotionScore, r.content, COUNT(l), r.createdAt) " +
+		"FROM EmotionRecord r " +
+		"JOIN r.user u " +
+		"LEFT JOIN EmotionLike l ON l.emotion = r " +
+		"WHERE r.visibility = com.cokerthon.Team3_Backend.domain.emotion.enums.Visibility.PUBLIC " + // Visiblity -> Visibility 로 수정
+		"GROUP BY r.id, u.nickname, r.emotionScore, r.content, r.createdAt " +
+		"ORDER BY r.createdAt DESC")
+	List<CommunityResDto> findAllCommunityPosts();
+}

src/main/java/com/cokerthon/Team3_Backend/domain/emotion/service/EmotionLikeService.java

@@ -0,0 +1,54 @@
+package com.cokerthon.Team3_Backend.domain.emotion.service;
+
+import java.time.LocalDateTime;
+import java.util.Optional;
+
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import com.cokerthon.Team3_Backend.domain.emotion.converter.EmotionLikeConverter;
+import com.cokerthon.Team3_Backend.domain.emotion.dto.response.LikeResDto;
+import com.cokerthon.Team3_Backend.domain.emotion.entity.EmotionLike;
+import com.cokerthon.Team3_Backend.domain.emotion.entity.EmotionRecord;
+import com.cokerthon.Team3_Backend.domain.emotion.exception.EmotionException;
+import com.cokerthon.Team3_Backend.domain.emotion.exception.code.EmotionErrorCode;
+import com.cokerthon.Team3_Backend.domain.emotion.repository.EmotionLikeRepository;
+import com.cokerthon.Team3_Backend.domain.emotion.repository.EmotionRecordRepository;
+import com.cokerthon.Team3_Backend.domain.user.entity.User;
+
+import lombok.RequiredArgsConstructor;
+
+@Service
+@RequiredArgsConstructor
+public class EmotionLikeService {
+
+	private final EmotionRecordRepository emotionRecordRepository;
+	private final EmotionLikeRepository emotionLikeRepository;
+
+	@Transactional
+	public LikeResDto toggleLike(User user, Long emotionId) {
+		EmotionRecord emotion = emotionRecordRepository.findById(emotionId)
+			.orElseThrow(() -> new EmotionException(EmotionErrorCode.EMOTION_NOT_FOUND));
+
+		Optional<EmotionLike> existingLike = emotionLikeRepository.findByUserAndEmotion(user, emotion);
+		boolean isLiked;
+
+		if (existingLike.isPresent()) {
+			emotionLikeRepository.delete(existingLike.get());
+			isLiked = false;
+		} else {
+			EmotionLike newLike = EmotionLike.builder()
+				.user(user)
+				.emotion(emotion)
+				.createdAt(LocalDateTime.now())
+				.build();
+			emotionLikeRepository.save(newLike);
+			isLiked = true;
+		}
+
+		int currentLikeCount = (int) emotionLikeRepository.countByEmotion(emotion);
+
+		return EmotionLikeConverter.toLikeResDto(emotionId, currentLikeCount, isLiked);
+	}
+
+}

src/main/java/com/cokerthon/Team3_Backend/global/security/CustomUserDetailsService.java

@@ -1,6 +1,6 @@
 package com.cokerthon.Team3_Backend.global.security;
 
-import com.cokerthon.Team3_Backend.domain.auth.exception.AuthErrorCode;
+import com.cokerthon.Team3_Backend.domain.auth.exception.code.AuthErrorCode;
 import com.cokerthon.Team3_Backend.domain.auth.exception.AuthException;
 import com.cokerthon.Team3_Backend.domain.user.entity.User;
 import com.cokerthon.Team3_Backend.domain.user.repository.UserRepository;