From 91b5ddf88bee1cc8cd90b4250af7e83107769151 Mon Sep 17 00:00:00 2001
From: HOJEONGKIMM <by08035@naver.com>
Date: Sun, 1 Dec 2024 17:15:08 +0900
Subject: [PATCH 1/2] =?UTF-8?q?BE:=20[feature]=20=EC=82=AC=ED=9B=84=20?=
 =?UTF-8?q?=EB=A0=88=ED=8F=AC=ED=8A=B8=20=EB=B0=8F=20=EB=8B=A4=EC=9A=B4?=
 =?UTF-8?q?=EB=A1=9C=EB=93=9C=20=EA=B8=B0=EB=8A=A5=20#72?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../shelved.patch"                            |  20 ----
 .idea/shelf/11_20_24__5_16PM__________.xml    |   4 -
 src/backend/Eyesee/build.gradle               |   6 +
 .../common/response/BaseResponseCode.java     |   3 +
 .../eyesee/controller/ExamController.java     |  52 +++++++-
 .../DetectedCheatingRepository.java           |  10 ++
 .../eyesee/repository/ExamRepository.java     |   5 +
 .../service/DetectedCheatingService.java      |   3 +-
 .../eyesee/service/ExamReportService.java     | 113 ++++++++++++++++++
 .../fortune/eyesee/service/ExcelService.java  |  69 +++++++++++
 10 files changed, 257 insertions(+), 28 deletions(-)
 delete mode 100644 ".idea/shelf/11_20_24,_5_16\342\200\257PM,_\354\262\264\355\201\254\354\225\204\354\233\203_\354\240\204\354\227\220_\354\273\244\353\260\213\353\220\230\354\247\200_\354\225\212\354\235\200_\353\263\200\352\262\275_\353\202\264\354\232\251_[\353\263\200\352\262\275]/shelved.patch"
 delete mode 100644 .idea/shelf/11_20_24__5_16PM__________.xml
 create mode 100644 src/backend/Eyesee/src/main/java/com/fortune/eyesee/service/ExamReportService.java
 create mode 100644 src/backend/Eyesee/src/main/java/com/fortune/eyesee/service/ExcelService.java

diff --git "a/.idea/shelf/11_20_24,_5_16\342\200\257PM,_\354\262\264\355\201\254\354\225\204\354\233\203_\354\240\204\354\227\220_\354\273\244\353\260\213\353\220\230\354\247\200_\354\225\212\354\235\200_\353\263\200\352\262\275_\353\202\264\354\232\251_[\353\263\200\352\262\275]/shelved.patch" "b/.idea/shelf/11_20_24,_5_16\342\200\257PM,_\354\262\264\355\201\254\354\225\204\354\233\203_\354\240\204\354\227\220_\354\273\244\353\260\213\353\220\230\354\247\200_\354\225\212\354\235\200_\353\263\200\352\262\275_\353\202\264\354\232\251_[\353\263\200\352\262\275]/shelved.patch"
deleted file mode 100644
index 54cf72b..0000000
--- "a/.idea/shelf/11_20_24,_5_16\342\200\257PM,_\354\262\264\355\201\254\354\225\204\354\233\203_\354\240\204\354\227\220_\354\273\244\353\260\213\353\220\230\354\247\200_\354\225\212\354\235\200_\353\263\200\352\262\275_\353\202\264\354\232\251_[\353\263\200\352\262\275]/shelved.patch"
+++ /dev/null
@@ -1,20 +0,0 @@
-Index: .idea/workspace.xml
-IDEA additional info:
-Subsystem: com.intellij.openapi.diff.impl.patch.BaseRevisionTextPatchEP
-<+><?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<project version=\"4\">\n  <component name=\"AutoImportSettings\">\n    <option name=\"autoReloadType\" value=\"SELECTIVE\" />\n  </component>\n  <component name=\"ChangeListManager\">\n    <list default=\"true\" id=\"9fb130f4-ff3a-4d08-b9af-31d0460f5b1f\" name=\"변경\" comment=\"\">\n      <change beforePath=\"$PROJECT_DIR$/.idea/sonarlint/issuestore/9/1/910cd19debf0f1bc66164aaa9e87c0ebd1344080\" beforeDir=\"false\" afterPath=\"$PROJECT_DIR$/.idea/sonarlint/issuestore/9/1/910cd19debf0f1bc66164aaa9e87c0ebd1344080\" afterDir=\"false\" />\n      <change beforePath=\"$PROJECT_DIR$/.idea/workspace.xml\" beforeDir=\"false\" afterPath=\"$PROJECT_DIR$/.idea/workspace.xml\" afterDir=\"false\" />\n      <change beforePath=\"$PROJECT_DIR$/src/ai/.gitignore\" beforeDir=\"false\" afterPath=\"$PROJECT_DIR$/src/ai/.gitignore\" afterDir=\"false\" />\n      <change beforePath=\"$PROJECT_DIR$/src/ai/4tune_AI/gaze_ver2/main.py\" beforeDir=\"false\" afterPath=\"$PROJECT_DIR$/src/ai/4tune_AI/gaze_ver2/main.py\" afterDir=\"false\" />\n    </list>\n    <option name=\"SHOW_DIALOG\" value=\"false\" />\n    <option name=\"HIGHLIGHT_CONFLICTS\" value=\"true\" />\n    <option name=\"HIGHLIGHT_NON_ACTIVE_CHANGELIST\" value=\"false\" />\n    <option name=\"LAST_RESOLUTION\" value=\"IGNORE\" />\n  </component>\n  <component name=\"Git.Settings\">\n    <option name=\"RECENT_BRANCH_BY_REPOSITORY\">\n      <map>\n        <entry key=\"$PROJECT_DIR$\" value=\"main\" />\n      </map>\n    </option>\n    <option name=\"RECENT_GIT_ROOT_PATH\" value=\"$PROJECT_DIR$\" />\n  </component>\n  <component name=\"MarkdownSettingsMigration\">\n    <option name=\"stateVersion\" value=\"1\" />\n  </component>\n  <component name=\"ProjectColorInfo\">{\n  &quot;associatedIndex&quot;: 4\n}</component>\n  <component name=\"ProjectId\" id=\"2o641f8TQ1Srqz0IeYtTkBZ8Eba\" />\n  <component name=\"ProjectViewState\">\n    <option name=\"hideEmptyMiddlePackages\" value=\"true\" />\n    <option name=\"showLibraryContents\" value=\"true\" />\n  </component>\n  <component name=\"PropertiesComponent\"><![CDATA[{\n  \"keyToString\": {\n    \"RunOnceActivity.OpenProjectViewOnStart\": \"true\",\n    \"RunOnceActivity.ShowReadmeOnStart\": \"true\",\n    \"WebServerToolWindowFactoryState\": \"false\",\n    \"git-widget-placeholder\": \"ai/feature/websocket\",\n    \"last_opened_file_path\": \"/Users/chun/Desktop/2024-2-SCS4031-4tune-1/src/ai/4tune_AI/gaze_ver2\",\n    \"node.js.detected.package.eslint\": \"true\",\n    \"node.js.detected.package.tslint\": \"true\",\n    \"node.js.selected.package.eslint\": \"(autodetect)\",\n    \"node.js.selected.package.tslint\": \"(autodetect)\",\n    \"vue.rearranger.settings.migration\": \"true\"\n  }\n}]]></component>\n  <component name=\"RecentsManager\">\n    <key name=\"CopyFile.RECENT_KEYS\">\n      <recent name=\"$PROJECT_DIR$/src/ai/4tune_AI/gaze_ver2\" />\n      <recent name=\"$PROJECT_DIR$/src/ai/4tune_AI\" />\n      <recent name=\"$PROJECT_DIR$/src/ai\" />\n    </key>\n    <key name=\"MoveFile.RECENT_KEYS\">\n      <recent name=\"$PROJECT_DIR$/src/ai\" />\n      <recent name=\"C:\\Users\\pride\\Desktop\\2024-2-SCS4031-4tune-1\\src\\ai\\4tune_AI\" />\n    </key>\n  </component>\n  <component name=\"SpellCheckerSettings\" RuntimeDictionaries=\"0\" Folders=\"0\" CustomDictionaries=\"0\" DefaultDictionary=\"애플리케이션 수준\" UseSingleDictionary=\"true\" transferred=\"true\" />\n  <component name=\"TaskManager\">\n    <task active=\"true\" id=\"Default\" summary=\"디폴트 작업\">\n      <changelist id=\"9fb130f4-ff3a-4d08-b9af-31d0460f5b1f\" name=\"변경\" comment=\"\" />\n      <created>1730176478192</created>\n      <option name=\"number\" value=\"Default\" />\n      <option name=\"presentableId\" value=\"Default\" />\n      <updated>1730176478192</updated>\n      <workItem from=\"1730176479713\" duration=\"1676000\" />\n      <workItem from=\"1730375878008\" duration=\"899000\" />\n      <workItem from=\"1730629095871\" duration=\"599000\" />\n      <workItem from=\"1730702578423\" duration=\"599000\" />\n      <workItem from=\"1730706956076\" duration=\"599000\" />\n      <workItem from=\"1730720619064\" duration=\"1626000\" />\n      <workItem from=\"1731154427257\" duration=\"600000\" />\n      <workItem from=\"1731384196719\" duration=\"1206000\" />\n      <workItem from=\"1731564970150\" duration=\"258000\" />\n      <workItem from=\"1731733805063\" duration=\"95000\" />\n      <workItem from=\"1731733911980\" duration=\"2014000\" />\n    </task>\n    <servers />\n  </component>\n  <component name=\"TypeScriptGeneratedFilesManager\">\n    <option name=\"version\" value=\"3\" />\n  </component>\n  <component name=\"com.intellij.coverage.CoverageDataManagerImpl\">\n    <SUITE FILE_PATH=\"coverage/2024_2_SCS4031_4tune_1$main.coverage\" NAME=\"main 커버리지 결과\" MODIFIED=\"1731994680825\" SOURCE_PROVIDER=\"com.intellij.coverage.DefaultCoverageFileProvider\" RUNNER=\"coverage.py\" COVERAGE_BY_TEST_ENABLED=\"true\" COVERAGE_TRACING_ENABLED=\"false\" WORKING_DIRECTORY=\"$PROJECT_DIR$/src/ai/4tune_AI/gaze_ver2\" />\n  </component>\n</project>
-Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
-<+>UTF-8
-===================================================================
-diff --git a/.idea/workspace.xml b/.idea/workspace.xml
---- a/.idea/workspace.xml	(revision d90ed865685714b17af28fb6f210944b274b7446)
-+++ b/.idea/workspace.xml	(date 1732090530674)
-@@ -5,9 +5,7 @@
-   </component>
-   <component name="ChangeListManager">
-     <list default="true" id="9fb130f4-ff3a-4d08-b9af-31d0460f5b1f" name="변경" comment="">
--      <change beforePath="$PROJECT_DIR$/.idea/sonarlint/issuestore/9/1/910cd19debf0f1bc66164aaa9e87c0ebd1344080" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/sonarlint/issuestore/9/1/910cd19debf0f1bc66164aaa9e87c0ebd1344080" afterDir="false" />
-       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
--      <change beforePath="$PROJECT_DIR$/src/ai/.gitignore" beforeDir="false" afterPath="$PROJECT_DIR$/src/ai/.gitignore" afterDir="false" />
-       <change beforePath="$PROJECT_DIR$/src/ai/4tune_AI/gaze_ver2/main.py" beforeDir="false" afterPath="$PROJECT_DIR$/src/ai/4tune_AI/gaze_ver2/main.py" afterDir="false" />
-     </list>
-     <option name="SHOW_DIALOG" value="false" />
diff --git a/.idea/shelf/11_20_24__5_16PM__________.xml b/.idea/shelf/11_20_24__5_16PM__________.xml
deleted file mode 100644
index bde69da..0000000
--- a/.idea/shelf/11_20_24__5_16PM__________.xml
+++ /dev/null
@@ -1,4 +0,0 @@
-<changelist name="11_20_24,_5_16 PM,_체크아웃_전에_커밋되지_않은_변경_내용_[변경]" date="1732090595727" recycled="true" deleted="true">
-  <option name="PATH" value="$PROJECT_DIR$/.idea/shelf/11_20_24,_5_16 PM,_체크아웃_전에_커밋되지_않은_변경_내용_[변경]/shelved.patch" />
-  <option name="DESCRIPTION" value="11/20/24, 5:16 PM, 체크아웃 전에 커밋되지 않은 변경 내용 [변경]" />
-</changelist>
\ No newline at end of file
diff --git a/src/backend/Eyesee/build.gradle b/src/backend/Eyesee/build.gradle
index 9f540f9..29e5a06 100644
--- a/src/backend/Eyesee/build.gradle
+++ b/src/backend/Eyesee/build.gradle
@@ -41,6 +41,12 @@ dependencies {
     // redis
     implementation 'org.springframework.boot:spring-boot-starter-data-redis-reactive'
 
+    // AWS S3
+    implementation 'com.amazonaws:aws-java-sdk-s3:1.12.530'
+
+    // Apache POI (엑셀 다운로드)
+    implementation 'org.apache.poi:poi-ooxml:5.2.3'
+
     compileOnly 'org.projectlombok:lombok'
     runtimeOnly 'com.mysql:mysql-connector-j'
     annotationProcessor 'org.projectlombok:lombok'
diff --git a/src/backend/Eyesee/src/main/java/com/fortune/eyesee/common/response/BaseResponseCode.java b/src/backend/Eyesee/src/main/java/com/fortune/eyesee/common/response/BaseResponseCode.java
index fafb39c..6178db5 100644
--- a/src/backend/Eyesee/src/main/java/com/fortune/eyesee/common/response/BaseResponseCode.java
+++ b/src/backend/Eyesee/src/main/java/com/fortune/eyesee/common/response/BaseResponseCode.java
@@ -31,6 +31,8 @@ public enum BaseResponseCode {
     INVALID_STATUS("GL012", HttpStatus.BAD_REQUEST, "유효하지 않은 상태 값입니다."),
     INVALID_INPUT("GL013", HttpStatus.BAD_REQUEST, "입력이 잘못되었습니다."),
 
+    NOT_FOUND_DATA("GL014", HttpStatus.NOT_FOUND, "요청한 데이터를 찾을 수 없습니다."),
+
     // User Errors
     ALREADY_EXIST_USER("U0001", HttpStatus.CONFLICT, "이미 존재하는 사용자입니다"),
     WRONG_PASSWORD("U0002", HttpStatus.BAD_REQUEST, "비밀번호가 틀렸습니다."),
@@ -56,6 +58,7 @@ public enum BaseResponseCode {
     // Cheating Errors
     NOT_FOUND_CHEATING_TYPE("C0001", HttpStatus.NOT_FOUND, "부정행위 타입을 찾을 수 없습니다."),
 
+
     // 기타 추가 오류 코드 ...
 
     ;
diff --git a/src/backend/Eyesee/src/main/java/com/fortune/eyesee/controller/ExamController.java b/src/backend/Eyesee/src/main/java/com/fortune/eyesee/controller/ExamController.java
index b24dc92..3666231 100644
--- a/src/backend/Eyesee/src/main/java/com/fortune/eyesee/controller/ExamController.java
+++ b/src/backend/Eyesee/src/main/java/com/fortune/eyesee/controller/ExamController.java
@@ -5,15 +5,19 @@
 import com.fortune.eyesee.common.response.BaseResponseCode;
 import com.fortune.eyesee.dto.*;
 import com.fortune.eyesee.enums.ExamStatus;
+import com.fortune.eyesee.service.ExamReportService;
 import com.fortune.eyesee.service.ExamService;
+import com.fortune.eyesee.service.ExcelService;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.http.HttpStatus;
+import org.springframework.core.io.InputStreamResource;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.security.core.context.SecurityContextHolder;
 import org.springframework.web.bind.annotation.*;
 
-import jakarta.servlet.http.HttpSession;
-
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -25,6 +29,12 @@ public class ExamController {
     @Autowired
     private ExamService examService;
 
+    @Autowired
+    private ExamReportService examReportService;
+
+    @Autowired
+    private ExcelService excelService;
+
 //    // "before" 상태의 Exam 리스트 조회
 //    @GetMapping("/before")
 //    public ResponseEntity<BaseResponse<List<ExamResponseDTO>>> getBeforeExams(HttpSession session) {
@@ -119,4 +129,40 @@ public ResponseEntity<BaseResponse<UserDetailResponseDTO>> getUserDetailByExamId
         UserDetailResponseDTO response = examService.getUserDetailByExamIdAndUserId(examId, userId);
         return ResponseEntity.ok(new BaseResponse<>(response, "학생 상세 정보 조회 성공"));
     }
+
+    // 사후 레포트 생성
+    @GetMapping("/{sessionId}/report")
+    public ResponseEntity<ExamReportResponseDTO> getExamReport(@PathVariable Integer sessionId) {
+        // SecurityContextHolder에서 adminId 가져오기
+        Integer adminId = (Integer) SecurityContextHolder.getContext().getAuthentication().getPrincipal();
+
+        // 레포트 생성
+        ExamReportResponseDTO report = examReportService.generateExamReport(adminId, sessionId);
+        return ResponseEntity.ok(report);
+    }
+
+
+    // 사후 레포트 엑셀 다운로드
+    @GetMapping("/{sessionId}/report/download")
+    public ResponseEntity<InputStreamResource> downloadExamReport(@PathVariable Integer sessionId) throws IOException {
+
+        // SecurityContextHolder에서 adminId 가져오기
+        Integer adminId = (Integer) SecurityContextHolder.getContext().getAuthentication().getPrincipal();
+
+        // 레포트 생성
+        ExamReportResponseDTO report = examReportService.generateExamReport(adminId, sessionId);
+
+        // 엑셀 파일 생성
+        ByteArrayInputStream excelFile = excelService.generateExcelFile(report);
+
+        HttpHeaders headers = new HttpHeaders();
+        headers.add("Content-Disposition", "attachment; filename=exam_report.xlsx");
+
+        return ResponseEntity.ok()
+                .headers(headers)
+                .contentType(MediaType.APPLICATION_OCTET_STREAM)
+                .body(new InputStreamResource(excelFile));
+    }
+
+
 }
diff --git a/src/backend/Eyesee/src/main/java/com/fortune/eyesee/repository/DetectedCheatingRepository.java b/src/backend/Eyesee/src/main/java/com/fortune/eyesee/repository/DetectedCheatingRepository.java
index 89e77f8..9372bde 100644
--- a/src/backend/Eyesee/src/main/java/com/fortune/eyesee/repository/DetectedCheatingRepository.java
+++ b/src/backend/Eyesee/src/main/java/com/fortune/eyesee/repository/DetectedCheatingRepository.java
@@ -3,12 +3,22 @@
 
 import com.fortune.eyesee.entity.DetectedCheating;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
 import org.springframework.stereotype.Repository;
 
+import java.util.List;
 import java.util.Optional;
 
 @Repository
 public interface DetectedCheatingRepository extends JpaRepository<DetectedCheating, Integer> {
     Optional<DetectedCheating> findByUserIdAndCheatingTypeId(Integer userId, Integer cheatingTypeId);
 
+    // 시험 ID로 부정행위 데이터 조회
+    @Query("SELECT dc FROM DetectedCheating dc WHERE dc.sessionId = :sessionId")
+    List<DetectedCheating> findBySessionId(@Param("sessionId") Integer sessionId);
+
+    // 시험에 참여한 학생 수 조회
+    @Query("SELECT COUNT(DISTINCT dc.userId) FROM DetectedCheating dc WHERE dc.sessionId = :sessionId")
+    Integer countDistinctUsersBySessionId(@Param("sessionId") Integer sessionId);
 }
\ No newline at end of file
diff --git a/src/backend/Eyesee/src/main/java/com/fortune/eyesee/repository/ExamRepository.java b/src/backend/Eyesee/src/main/java/com/fortune/eyesee/repository/ExamRepository.java
index 3889903..ff21c88 100644
--- a/src/backend/Eyesee/src/main/java/com/fortune/eyesee/repository/ExamRepository.java
+++ b/src/backend/Eyesee/src/main/java/com/fortune/eyesee/repository/ExamRepository.java
@@ -7,6 +7,7 @@
 import org.springframework.stereotype.Repository;
 
 import java.util.List;
+import java.util.Optional;
 
 @Repository
 public interface ExamRepository extends JpaRepository<Exam, Integer> {
@@ -23,4 +24,8 @@ public interface ExamRepository extends JpaRepository<Exam, Integer> {
 
     // adminId 없이 상태로만 Exam 조회
     List<Exam> findByExamStatus(ExamStatus examStatus);
+
+    // 특정 sessionId와 adminId를 기준으로 Exam 데이터 조회
+    Optional<Exam> findBySession_SessionIdAndAdmin_AdminId(Integer sessionId, Integer adminId);
+
 }
\ No newline at end of file
diff --git a/src/backend/Eyesee/src/main/java/com/fortune/eyesee/service/DetectedCheatingService.java b/src/backend/Eyesee/src/main/java/com/fortune/eyesee/service/DetectedCheatingService.java
index aab5e6d..542cd2e 100644
--- a/src/backend/Eyesee/src/main/java/com/fortune/eyesee/service/DetectedCheatingService.java
+++ b/src/backend/Eyesee/src/main/java/com/fortune/eyesee/service/DetectedCheatingService.java
@@ -9,6 +9,7 @@
 import com.fortune.eyesee.repository.CheatingStatisticsRepository;
 import org.springframework.stereotype.Service;
 
+import java.time.LocalTime;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -60,7 +61,7 @@ public List<DetectedCheating> saveCheating(CheatingResponseDTO cheatingResponseD
                     detectedCheating.setUserId(userId);
                     detectedCheating.setSessionId(finalSessionId);  // 세션 ID 추가
                     detectedCheating.setCheatingTypeId(cheatingTypeId);
-                    detectedCheating.setDetectedTime(cheatingResponseDTO.getTimestamp().toLocalTime());
+                    detectedCheating.setDetectedTime(LocalTime.from(cheatingResponseDTO.getTimestamp()));
                     detectedCheatings.add(detectedCheatingRepository.save(detectedCheating));
 
                     // CheatingStatistics 갱신
diff --git a/src/backend/Eyesee/src/main/java/com/fortune/eyesee/service/ExamReportService.java b/src/backend/Eyesee/src/main/java/com/fortune/eyesee/service/ExamReportService.java
new file mode 100644
index 0000000..f98ada6
--- /dev/null
+++ b/src/backend/Eyesee/src/main/java/com/fortune/eyesee/service/ExamReportService.java
@@ -0,0 +1,113 @@
+package com.fortune.eyesee.service;
+
+import com.fortune.eyesee.common.exception.BaseException;
+import com.fortune.eyesee.common.response.BaseResponseCode;
+import com.fortune.eyesee.dto.ExamReportResponseDTO;
+import com.fortune.eyesee.entity.*;
+import com.fortune.eyesee.repository.*;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.time.LocalDateTime;
+import java.time.LocalTime;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+@Service
+public class ExamReportService {
+
+    @Autowired
+    private DetectedCheatingRepository detectedCheatingRepository;
+
+    @Autowired
+    private UserRepository userRepository;
+
+    @Autowired
+    private AdminRepository adminRepository;
+
+    @Autowired
+    private ExamRepository examRepository;
+
+    @Autowired
+    private CheatingTypeRepository cheatingTypeRepository;
+
+    public ExamReportResponseDTO generateExamReport(Integer adminId, Integer sessionId) {
+
+        // Admin 인증 확인
+        Admin admin = adminRepository.findById(adminId)
+                .orElseThrow(() -> new BaseException(BaseResponseCode.UNAUTHORIZED));
+
+        // Admin이 생성한 시험인지 확인
+        Exam exam = examRepository.findBySession_SessionIdAndAdmin_AdminId(sessionId, admin.getAdminId())
+                .orElseThrow(() -> new BaseException(BaseResponseCode.UNAUTHORIZED));
+
+        // 시험의 전체 학생 수 가져오기
+        Integer totalStudents = exam.getExamStudentNumber();
+
+        // 1. 부정행위 데이터 조회
+        List<DetectedCheating> detectedCheatings = detectedCheatingRepository.findBySessionId(sessionId);
+
+        // 2. 총 부정행위 횟수
+        int totalCheatingCount = detectedCheatings.size();
+
+        // 3. 부정행위 탐지된 학생 수
+        int cheatingStudentsCount = detectedCheatingRepository.countDistinctUsersBySessionId(sessionId);
+
+        // 4. 평균 부정행위 횟수
+        double averageCheatingCount = totalCheatingCount / (double) cheatingStudentsCount;
+
+        // 5. 최다 부정행위 탐지 학생
+        Map<Integer, Long> userCheatingCounts = detectedCheatings.stream()
+                .collect(Collectors.groupingBy(DetectedCheating::getUserId, Collectors.counting()));
+        Map.Entry<Integer, Long> maxCheatingEntry = userCheatingCounts.entrySet().stream()
+                .max(Map.Entry.comparingByValue())
+                .orElse(null);
+
+        String maxCheatingStudent = "N/A";
+        if (maxCheatingEntry != null) {
+            Integer maxUserId = maxCheatingEntry.getKey();
+            User maxUser = userRepository.findById(maxUserId).orElse(null);
+            if (maxUser != null) {
+                maxCheatingStudent = "학번: " + maxUser.getUserNum() + ", 횟수: " + maxCheatingEntry.getValue();
+            }
+        }
+
+        // 6. 부정행위 탐지율
+        double cheatingRate = (cheatingStudentsCount / (double) totalStudents) * 100;
+
+        // 7. 부정행위 유형별 통계
+        Map<String, Integer> cheatingTypeStatistics = detectedCheatings.stream()
+                .collect(Collectors.groupingBy(dc -> {
+                    CheatingType cheatingType = cheatingTypeRepository.findByCheatingTypeId(dc.getCheatingTypeId())
+                            .orElseThrow(() -> new BaseException(BaseResponseCode.NOT_FOUND_DATA));
+                    return cheatingType.getKoreanTypeName();
+                }, Collectors.summingInt(e -> 1)));
+
+        // 8. 부정행위 발생 시간대 분석
+        Map<LocalTime, Long> timeFrequency = detectedCheatings.stream()
+                .collect(Collectors.groupingBy(dc -> dc.getDetectedTime().withMinute(0).withSecond(0).withNano(0),
+                        Collectors.counting()));
+        LocalTime peakTime = timeFrequency.entrySet().stream()
+                .max(Map.Entry.comparingByValue())
+                .map(Map.Entry::getKey)
+                .orElse(null);
+        String peakCheatingTimeRange = peakTime != null
+                ? peakTime + " ~ " + peakTime.plusMinutes(30)
+                : "N/A";
+
+
+        ExamReportResponseDTO report = new ExamReportResponseDTO();
+
+        report.setExamName(exam.getExamName());
+        report.setTotalCheatingCount(totalCheatingCount);
+        report.setCheatingStudentsCount(cheatingStudentsCount);
+        report.setAverageCheatingCount(averageCheatingCount);
+        report.setMaxCheatingStudent(maxCheatingStudent);
+        report.setCheatingRate(cheatingRate);
+        report.setCheatingTypeStatistics(cheatingTypeStatistics);
+        report.setPeakCheatingTimeRange(peakCheatingTimeRange);
+
+        return report;
+    }
+}
diff --git a/src/backend/Eyesee/src/main/java/com/fortune/eyesee/service/ExcelService.java b/src/backend/Eyesee/src/main/java/com/fortune/eyesee/service/ExcelService.java
new file mode 100644
index 0000000..98733cc
--- /dev/null
+++ b/src/backend/Eyesee/src/main/java/com/fortune/eyesee/service/ExcelService.java
@@ -0,0 +1,69 @@
+package com.fortune.eyesee.service;
+
+import com.fortune.eyesee.dto.ExamReportResponseDTO;
+import org.apache.poi.ss.usermodel.Row;
+import org.apache.poi.ss.usermodel.Sheet;
+import org.apache.poi.ss.usermodel.Workbook;
+import org.apache.poi.xssf.usermodel.XSSFWorkbook;
+import org.springframework.stereotype.Service;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.util.concurrent.atomic.AtomicInteger;
+
+@Service
+public class ExcelService {
+
+    public ByteArrayInputStream generateExcelFile(ExamReportResponseDTO report) throws IOException {
+        try (Workbook workbook = new XSSFWorkbook()) {
+            Sheet sheet = workbook.createSheet("Exam Report");
+
+            // 헤더
+            Row headerRow = sheet.createRow(0);
+            headerRow.createCell(0).setCellValue("항목");
+            headerRow.createCell(1).setCellValue("값");
+
+            // 시험 이름
+            Row examNameRow = sheet.createRow(1);
+            examNameRow.createCell(0).setCellValue("시험 이름");
+            examNameRow.createCell(1).setCellValue(report.getExamName());
+
+            // 부정행위 관련 정보
+            int rowNum = 2; // 초기 행 번호
+            sheet.createRow(rowNum++).createCell(0).setCellValue("총 탐지된 부정행위 건수");
+            sheet.getRow(rowNum - 1).createCell(1).setCellValue(report.getTotalCheatingCount());
+
+            sheet.createRow(rowNum++).createCell(0).setCellValue("부정행위 탐지된 학생 수");
+            sheet.getRow(rowNum - 1).createCell(1).setCellValue(report.getCheatingStudentsCount());
+
+            sheet.createRow(rowNum++).createCell(0).setCellValue("평균 부정행위 탐지 건수");
+            sheet.getRow(rowNum - 1).createCell(1).setCellValue(report.getAverageCheatingCount());
+
+            sheet.createRow(rowNum++).createCell(0).setCellValue("최다 부정행위 탐지 학생");
+            sheet.getRow(rowNum - 1).createCell(1).setCellValue(report.getMaxCheatingStudent());
+
+            sheet.createRow(rowNum++).createCell(0).setCellValue("부정행위 탐지율");
+            sheet.getRow(rowNum - 1).createCell(1).setCellValue(report.getCheatingRate() + "%");
+
+            // 부정행위 유형별 통계
+            sheet.createRow(rowNum++).createCell(0).setCellValue("부정행위 유형별 통계");
+            AtomicInteger finalRowNum = new AtomicInteger(rowNum);
+            report.getCheatingTypeStatistics().forEach((type, count) -> {
+                Row row = sheet.createRow(finalRowNum.getAndIncrement());
+                row.createCell(0).setCellValue(type);
+                row.createCell(1).setCellValue(count);
+            });
+
+            // 부정행위 발생 시간대
+            sheet.createRow(finalRowNum.getAndIncrement()).createCell(0).setCellValue("부정행위 발생 시간대");
+            sheet.getRow(finalRowNum.get() - 1).createCell(1).setCellValue(report.getPeakCheatingTimeRange());
+
+            ByteArrayOutputStream out = new ByteArrayOutputStream();
+            workbook.write(out);
+            return new ByteArrayInputStream(out.toByteArray());
+        }
+    }
+
+
+}

From 2d3da8eee039e090ac619b86edddcf6466ccec79 Mon Sep 17 00:00:00 2001
From: HOJEONGKIMM <by08035@naver.com>
Date: Sun, 1 Dec 2024 17:17:08 +0900
Subject: [PATCH 2/2] =?UTF-8?q?BE:=20[feature]=20=EC=8B=9C=ED=97=98=20?=
 =?UTF-8?q?=EC=82=AC=ED=9B=84=20=EB=A0=88=ED=8F=AC=ED=8A=B8=20dto=20?=
 =?UTF-8?q?=ED=8C=8C=EC=9D=BC=20=EC=B6=94=EA=B0=80=20#72?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../eyesee/dto/ExamReportResponseDTO.java       | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 src/backend/Eyesee/src/main/java/com/fortune/eyesee/dto/ExamReportResponseDTO.java

diff --git a/src/backend/Eyesee/src/main/java/com/fortune/eyesee/dto/ExamReportResponseDTO.java b/src/backend/Eyesee/src/main/java/com/fortune/eyesee/dto/ExamReportResponseDTO.java
new file mode 100644
index 0000000..04861ac
--- /dev/null
+++ b/src/backend/Eyesee/src/main/java/com/fortune/eyesee/dto/ExamReportResponseDTO.java
@@ -0,0 +1,17 @@
+package com.fortune.eyesee.dto;
+
+import lombok.Data;
+
+import java.util.Map;
+
+@Data
+public class ExamReportResponseDTO {
+    private String examName;                    // 시험 이름
+    private Integer totalCheatingCount;         // 총 탐지된 부정행위 건수
+    private Integer cheatingStudentsCount;      // 부정행위 탐지된 학생 수
+    private Double averageCheatingCount;        // 평균 부정행위 탐지 건수
+    private String maxCheatingStudent;          // 최다 부정행위 탐지 학생 학번 및 이름
+    private Double cheatingRate;                // 부정행위 탐지율
+    private Map<String, Integer> cheatingTypeStatistics; // 부정행위 유형별 통계
+    private String peakCheatingTimeRange;       // 부정행위 발생 시간대
+}