feat: 일정 이미지를 저장하는 비즈니스 로직 구현

backend/src/main/java/com/isp/backend/domain/scheduleImage/service/ScheduleImageService.java

@@ -0,0 +1,31 @@
+package com.isp.backend.domain.scheduleImage.service;
+
+import com.isp.backend.domain.schedule.entity.Schedule;
+import com.isp.backend.domain.schedule.repository.ScheduleRepository;
+import com.isp.backend.domain.scheduleImage.dto.SaveScheduleImageRequest;
+import com.isp.backend.domain.scheduleImage.dto.SaveScheduleImageResponse;
+import com.isp.backend.domain.scheduleImage.entity.ScheduleImage;
+import com.isp.backend.domain.scheduleImage.repository.ScheduleImageRepository;
+import com.isp.backend.domain.scheduleImage.repository.ScheduleImageS3Repository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.web.multipart.MultipartFile;
+
+@Service
+@RequiredArgsConstructor
+public class ScheduleImageService implements SaveImageService {
+
+	private final ScheduleImageS3Repository scheduleImageS3Repository;
+	private final ScheduleRepository scheduleRepository;
+	private final ScheduleImageRepository scheduleImageRepository;
+
+	@Override
+	public SaveScheduleImageResponse save(SaveScheduleImageRequest request, MultipartFile image) {
+		String imagePath = scheduleImageS3Repository.save(request, image);
+		Schedule schedule = scheduleRepository.findById(request.scheduleId()).orElseThrow(IllegalArgumentException::new);
+		ScheduleImage scheduleImage = new ScheduleImage(schedule, imagePath);
+
+		scheduleImageRepository.save(scheduleImage);
+		return new SaveScheduleImageResponse(scheduleImage);
+	}
+}