[Feature] 날짜별 일기 조회 API

.gitignore

@@ -34,4 +34,6 @@ out/
 /.nb-gradle/
 
 ### VS Code ###
-.vscode/
+.vscode/
+
+.env

build.gradle

@@ -46,6 +46,8 @@ dependencies {
 
     // okhttp
     implementation 'com.squareup.okhttp3:okhttp:4.12.0'
+
+    implementation 'io.github.cdimascio:java-dotenv:5.2.2'
 }
 
 tasks.named('test') {

src/main/java/com/bamboo/log/common/config/EnvConfig.java

@@ -0,0 +1,13 @@
+package com.bamboo.log.common.config;
+
+import io.github.cdimascio.dotenv.Dotenv;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class EnvConfig {
+    @Bean
+    public Dotenv dotenv() {
+        return Dotenv.configure().ignoreIfMissing().load();
+    }
+}

src/main/java/com/bamboo/log/diary/api/DiaryController.java

@@ -11,7 +11,7 @@
 
 import io.swagger.v3.oas.annotations.tags.Tag;
 
-import java.util.List;
+import java.time.LocalDateTime;
 
 @RestController
 @RequiredArgsConstructor
@@ -21,13 +21,19 @@ public class DiaryController {
 
     private final DiaryService diaryService;
 
-    @Operation(summary = "랜덤 주제 조회")
+    @Operation(summary = "일기 생성")
     @PostMapping("/create")
-    public ResponseEntity lookupRandomTopics(@RequestBody CreateDiaryRequest createDiaryRequest) {
+    public ResponseEntity createDiary(@RequestBody CreateDiaryRequest createDiaryRequest) {
         try {
             return diaryService.createDiary(createDiaryRequest);
         } catch (Exception e) {
             return ResponseHandler.create500Error(new ResponseForm(), e);
         }
     }
+
+    @Operation(summary = "날짜별 일기 조회")
+    @GetMapping("/date")
+    public ResponseEntity getDiaryByDate(@RequestParam LocalDateTime date) {
+        return diaryService.getDiaryByDate(date);
+    }
 }

src/main/java/com/bamboo/log/diary/dto/response/CheckDiaryResponse.java

@@ -0,0 +1,13 @@
+package com.bamboo.log.diary.dto.response;
+
+import jakarta.validation.constraints.NotEmpty;
+import lombok.Builder;
+
+import java.time.LocalDateTime;
+
+@Builder
+public record CheckDiaryResponse(@NotEmpty(message = "Date shouldn't be empty") LocalDateTime date,
+                                 @NotEmpty(message = "Diary Description shouldn't be empty") String diaryDescription,
+                                 @NotEmpty(message = "Summary Image shouldn't be empty") byte[] summaryImage
+                                 ) {
+}

src/main/java/com/bamboo/log/diary/repository/DiaryRepository.java

@@ -1,7 +1,14 @@
 package com.bamboo.log.diary.repository;
 
 import com.bamboo.log.diary.domain.Diary;
+import com.bamboo.log.domain.user.oauth.entity.UserEntity;
 import org.springframework.data.jpa.repository.JpaRepository;
 
+import java.time.LocalDateTime;
+import java.util.List;
+
 public interface DiaryRepository extends JpaRepository<Diary, Long> {
+
+    List<Diary> findByUserAAndCreatedAtBetween(UserEntity user, LocalDateTime start, LocalDateTime end);
+
 }

src/main/java/com/bamboo/log/diary/repository/TodaySummaryRepository.java

@@ -3,5 +3,10 @@
 import com.bamboo.log.diary.domain.TodaySummary;
 import org.springframework.data.jpa.repository.JpaRepository;
 
+import java.util.Optional;
+
 public interface TodaySummaryRepository extends JpaRepository<TodaySummary, Long> {
+
+    Optional<TodaySummary> findByDiaryId(Long diaryId);
+
 }

src/main/java/com/bamboo/log/diary/service/diary/DiaryService.java

@@ -3,8 +3,12 @@
 import com.bamboo.log.diary.dto.request.CreateDiaryRequest;
 import org.springframework.http.ResponseEntity;
 
+import java.time.LocalDateTime;
+
 public interface DiaryService {
 
     ResponseEntity createDiary(CreateDiaryRequest createDiaryRequest);
 
+    ResponseEntity getDiaryByDate(LocalDateTime date);
+
 }

src/main/java/com/bamboo/log/diary/service/diary/DiaryServiceImpl.java

@@ -1,10 +1,14 @@
 package com.bamboo.log.diary.service.diary;
 
 import com.bamboo.log.diary.domain.Diary;
+import com.bamboo.log.diary.domain.TodaySummary;
 import com.bamboo.log.diary.dto.request.CreateDiaryRequest;
+import com.bamboo.log.diary.dto.response.CheckDiaryResponse;
 import com.bamboo.log.diary.dto.response.CreateDiaryResponse;
 import com.bamboo.log.diary.repository.DiaryRepository;
+import com.bamboo.log.diary.repository.TodaySummaryRepository;
 import com.bamboo.log.domain.user.oauth.dto.CustomOAuth2User;
+import com.bamboo.log.domain.user.oauth.repository.UserRepository;
 import com.bamboo.log.domain.user.oauth.service.CustomOAuth2UserService;
 import org.springframework.security.core.GrantedAuthority;
 
@@ -21,15 +25,19 @@
 
 import java.io.IOException;
 import java.time.LocalDateTime;
+import java.util.List;
+import java.util.Optional;
 
 @Service
 @Transactional
 @RequiredArgsConstructor
 public class DiaryServiceImpl implements DiaryService {
 
     private final UserContextUtil userContextUtil;
+    private final UserRepository userRepository;
     private final DiaryRepository diaryRepository;
     private final TodaySummaryService todaySummaryService;
+    private final TodaySummaryRepository todaySummaryRepository;
 
     @Override
     public ResponseEntity createDiary(CreateDiaryRequest createDiaryRequest) {
@@ -52,6 +60,29 @@ public ResponseEntity createDiary(CreateDiaryRequest createDiaryRequest) {
         return ResponseHandler.create201Response(new ResponseForm(), new CreateDiaryResponse(localDateTime));
     }
 
+    @Override
+    public ResponseEntity getDiaryByDate(LocalDateTime date) {
+        UserEntity user = userRepository.findByUsername(userContextUtil.getUsername());
+
+        try {
+            List<Diary> diaries = diaryRepository.findByUserAAndCreatedAtBetween(user, date, date);
+            Diary diaryByDate = diaries.get(0);
+            Optional<TodaySummary> summaryImage = todaySummaryRepository.findByDiaryId(diaryByDate.getId());
+
+            return ResponseHandler.create200Response(new ResponseForm(),
+                    CheckDiaryResponse.builder()
+                            .date(diaryByDate.getCreatedAt())
+                            .diaryDescription(diaryByDate.getContext())
+                            .summaryImage(summaryImage.get().getImageData()));
+
+        } catch (RuntimeException e) {
+            return ResponseHandler.create404Error(new ResponseForm(), new IllegalArgumentException("해당 날짜에 작성된 일기가 없습니다."));
+        }
+        catch (Exception e) {
+            return ResponseHandler.create500Error(new ResponseForm(), e);
+        }
+    }
+
     private Diary saveDiary(CreateDiaryRequest createDiaryRequest, LocalDateTime localDateTime) {
         UserEntity user = userContextUtil.getUserEntity();