Feat : answer list into each video in material 4 pdf api

src/main/java/com/m9d/sroom/material/MaterialService.java

@@ -145,12 +145,15 @@ private void addMaterialAndQuizAnswer(CourseVideo courseVideo, List<Answer4PdfRe
         if (courseVideo.getMaterialStatus().equals(MaterialStatus.CREATED)) {
             summaryBrief = new SummaryBrief(summaryService.getSummaryEntity(courseVideo.getSummaryId()));
 
+            Answer4PdfResponse answer4PdfResponse = Answer4PdfResponse.getDefault(courseVideo.getVideoIndex(),
+                    videoRepository.getById(courseVideo.getVideoId()).getTitle());
             for (Quiz quiz : quizService.getQuizList(courseVideo.getVideoId())) {
                 quizList.add(new Quiz4PdfResponse(quiz, quizIndex));
-                answerList.add(new Answer4PdfResponse(courseVideo.getVideoIndex(), quizIndex, quiz.getAnswer(),
+                answer4PdfResponse.getVideoAnswers().add(new VideoAnswer4PdfResponse(quizIndex, quiz.getAnswer(),
                         quiz.getOptionStrList().get(Integer.parseInt(quiz.getAnswer()) - 1)));
                 quizIndex++;
             }
+            answerList.add(answer4PdfResponse);
         }
 
         contentList.add(Content4PdfResponse.create(videoRepository.getById(courseVideo.getVideoId()), courseVideo,

src/main/java/com/m9d/sroom/material/dto/response/Answer4PdfResponse.java

@@ -3,11 +3,19 @@
 import lombok.AllArgsConstructor;
 import lombok.Data;
 
+import java.util.ArrayList;
+import java.util.List;
+
 @Data
 @AllArgsConstructor
 public class Answer4PdfResponse {
+
     private int videoIndex;
-    private int quizIndex;
-    private String answer;
-    private String answerStr;
+    private String videoTitle;
+
+    private List<VideoAnswer4PdfResponse> videoAnswers;
+
+    public static Answer4PdfResponse getDefault(int videoIndex, String title) {
+        return new Answer4PdfResponse(videoIndex, title, new ArrayList<>());
+    }
 }

src/main/java/com/m9d/sroom/material/dto/response/VideoAnswer4PdfResponse.java

@@ -0,0 +1,15 @@
+package com.m9d.sroom.material.dto.response;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+
+@Data
+@Builder
+@AllArgsConstructor
+public class VideoAnswer4PdfResponse {
+
+    private int quizIndex;
+    private String answer;
+    private String answerStr;
+}