feat/#201: 참가 신청 통계에 리워드 지급 인원 추가

src/main/java/com/example/nexus/app/participation/controller/doc/ParticipationControllerDoc.java

@@ -133,6 +133,7 @@ ResponseEntity<ApiResponse<Void>> completeParticipant(
                 - approvedCount: 진행중 인원
                 - feedbackCompletedCount: 피드백 완료 인원
                 - testCompletedCount: 테스트 완료 인원
+                - paidCount: 리워드 지급 완료 인원
                 - rejectedCount: 거절됨 인원
                 - totalCount: 전체 신청 인원
                 """

src/main/java/com/example/nexus/app/participation/controller/dto/response/ParticipationStatisticsResponse.java

@@ -13,24 +13,35 @@ public record ParticipationStatisticsResponse(
         @Schema(description = "피드백 완료 인원", example = "7")
         Long feedbackCompletedCount,
 
-        @Schema(description = "테스트 완료 인원", example = "8")
+        @Schema(description = "테스트 완료 (지급 대기) 인원", example = "5")
         Long testCompletedCount,
 
+        @Schema(description = "리워드 지급 완료 인원", example = "3")
+        Long paidCount,
+
         @Schema(description = "거절됨 인원", example = "3")
         Long rejectedCount,
 
         @Schema(description = "전체 신청 인원", example = "33")
         Long totalCount
 ) {
-    public static ParticipationStatisticsResponse of(Long pendingCount, Long approvedCount,
-                                                     Long feedbackCompletedCount, Long testCompletedCount,
-                                                     Long rejectedCount) {
-        Long total = pendingCount + approvedCount + feedbackCompletedCount + testCompletedCount + rejectedCount;
+    public static ParticipationStatisticsResponse of(
+            Long pendingCount,
+            Long approvedCount,
+            Long feedbackCompletedCount,
+            Long testCompletedCount,
+            Long paidCount,
+            Long rejectedCount) {
+
+        Long total = pendingCount + approvedCount + feedbackCompletedCount
+                + testCompletedCount + paidCount + rejectedCount;
+
         return new ParticipationStatisticsResponse(
                 pendingCount,
                 approvedCount,
                 feedbackCompletedCount,
                 testCompletedCount,
+                paidCount,
                 rejectedCount,
                 total
         );

src/main/java/com/example/nexus/app/participation/repository/ParticipationRepository.java

@@ -164,7 +164,8 @@ Long countByPostIdAndStatusAndIsPaid(
                     "COALESCE(COUNT(CASE WHEN status = 'PENDING' THEN 1 END), 0) as pendingCount, " +
                     "COALESCE(COUNT(CASE WHEN status = 'APPROVED' THEN 1 END), 0) as approvedCount, " +
                     "COALESCE(COUNT(CASE WHEN status = 'FEEDBACK_COMPLETED' THEN 1 END), 0) as feedbackCompletedCount, " +
-                    "COALESCE(COUNT(CASE WHEN status = 'TEST_COMPLETED' THEN 1 END), 0) as testCompletedCount, " +
+                    "COALESCE(COUNT(CASE WHEN status = 'TEST_COMPLETED' AND is_paid = false THEN 1 END), 0) as testCompletedCount, " +
+                    "COALESCE(COUNT(CASE WHEN status = 'TEST_COMPLETED' AND is_paid = true THEN 1 END), 0) as paidCount, " +
                     "COALESCE(COUNT(CASE WHEN status = 'REJECTED' THEN 1 END), 0) as rejectedCount " +
                     "FROM participations " +
                     "WHERE post_id = :postId",

src/main/java/com/example/nexus/app/participation/service/ParticipationService.java

@@ -249,6 +249,7 @@ public ParticipationStatisticsResponse getPostApplicationStatistics(Long postId,
                 stats.approvedCount(),
                 stats.feedbackCompletedCount(),
                 stats.testCompletedCount(),
+                stats.paidCount(),
                 stats.rejectedCount()
         );
     }
@@ -380,7 +381,7 @@ private ParticipationStatsDto extractParticipationStats(Long postId) {
         List<Object[]> resultList = participationRepository.getParticipationStatsByPostId(postId);
 
         if (resultList.isEmpty()) {
-            return new ParticipationStatsDto(0L, 0L, 0L, 0L, 0L);
+            return new ParticipationStatsDto(0L, 0L, 0L, 0L, 0L, 0L);
         }
 
         Object[] result = resultList.get(0);
@@ -389,8 +390,9 @@ private ParticipationStatsDto extractParticipationStats(Long postId) {
                 extractLongValue(result[0]),  // pendingCount
                 extractLongValue(result[1]),  // approvedCount
                 extractLongValue(result[2]),  // feedbackCompletedCount
-                extractLongValue(result[3]),  // testCompletedCount
-                extractLongValue(result[4])   // rejectedCount
+                extractLongValue(result[3]),  // testCompletedCount (지급 대기)
+                extractLongValue(result[4]),  // paidCount (지급 완료)
+                extractLongValue(result[5])   // rejectedCount
         );
     }
 

src/main/java/com/example/nexus/app/participation/service/dto/ParticipationStatsDto.java

@@ -5,6 +5,7 @@ public record ParticipationStatsDto(
         Long approvedCount,
         Long feedbackCompletedCount,
         Long testCompletedCount,
+        Long paidCount,
         Long rejectedCount
 ) {
 }