[BE] refactor: 서비스 리팩터링

backend/src/main/java/reviewme/review/service/module/ReviewMapper.java

@@ -0,0 +1,79 @@
+package reviewme.review.service.module;
+
+import java.util.ArrayList;
+import java.util.List;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Component;
+import reviewme.question.domain.Question;
+import reviewme.question.domain.QuestionType;
+import reviewme.question.repository.QuestionRepository;
+import reviewme.review.domain.CheckboxAnswer;
+import reviewme.review.domain.Review;
+import reviewme.review.domain.TextAnswer;
+import reviewme.review.domain.exception.ReviewGroupNotFoundByReviewRequestCodeException;
+import reviewme.review.service.dto.request.ReviewAnswerRequest;
+import reviewme.review.service.dto.request.ReviewRegisterRequest;
+import reviewme.review.service.exception.SubmittedQuestionNotFoundException;
+import reviewme.reviewgroup.domain.ReviewGroup;
+import reviewme.reviewgroup.repository.ReviewGroupRepository;
+import reviewme.template.domain.Template;
+import reviewme.template.domain.exception.TemplateNotFoundByReviewGroupException;
+import reviewme.template.repository.TemplateRepository;
+
+@Component
+@RequiredArgsConstructor
+public class ReviewMapper {
+
+    private final ReviewGroupRepository reviewGroupRepository;
+    private final TemplateRepository templateRepository;
+    private final QuestionRepository questionRepository;
+
+    public Review mapToReview(ReviewRegisterRequest request,
+                              TextAnswerValidator textAnswerValidator,
+                              CheckBoxAnswerValidator checkBoxAnswerValidator
+    ) {
+        ReviewGroup reviewGroup = findReviewGroupByRequestCodeOrThrow(request.reviewRequestCode());
+        Template template = findTemplateByReviewGroupOrThrow(reviewGroup);
+
+
+        List<TextAnswer> textAnswers = new ArrayList<>();
+        List<CheckboxAnswer> checkboxAnswers = new ArrayList<>();
+        for (ReviewAnswerRequest answerRequest : request.answers()) {
+            Question question = questionRepository.findById(answerRequest.questionId())
+                    .orElseThrow(() -> new SubmittedQuestionNotFoundException(answerRequest.questionId()));
+
+            if (question.getQuestionType() == QuestionType.TEXT) {
+                TextAnswer textAnswer = mapToTextAnswer(answerRequest);
+                textAnswerValidator.validate(textAnswer);
+                textAnswers.add(textAnswer);
+            }
+
+            if (question.getQuestionType() == QuestionType.CHECKBOX) {
+                CheckboxAnswer checkboxAnswer = mapToCheckboxAnswer(answerRequest);
+                checkBoxAnswerValidator.validate(checkboxAnswer);
+                checkboxAnswers.add(checkboxAnswer);
+            }
+        }
+
+        return new Review(template.getId(), reviewGroup.getId(), textAnswers, checkboxAnswers);
+    }
+
+    private ReviewGroup findReviewGroupByRequestCodeOrThrow(String reviewRequestCode) {
+        return reviewGroupRepository.findByReviewRequestCode(reviewRequestCode)
+                .orElseThrow(() -> new ReviewGroupNotFoundByReviewRequestCodeException(reviewRequestCode));
+    }
+
+    private Template findTemplateByReviewGroupOrThrow(ReviewGroup reviewGroup) {
+        return templateRepository.findById(reviewGroup.getTemplateId())
+                .orElseThrow(() -> new TemplateNotFoundByReviewGroupException(
+                        reviewGroup.getId(), reviewGroup.getTemplateId()));
+    }
+
+    private TextAnswer mapToTextAnswer(ReviewAnswerRequest answerRequest) {
+        return new TextAnswer(answerRequest.questionId(), answerRequest.text());
+    }
+
+    private CheckboxAnswer mapToCheckboxAnswer(ReviewAnswerRequest answerRequest) {
+        return new CheckboxAnswer(answerRequest.questionId(), answerRequest.selectedOptionIds());
+    }
+}