fix the enrollement-carryover balance

app/Services/EnrollmentWithdrawalService.php

@@ -57,11 +57,13 @@ public function buildRoster(string $selectedYear, string $semester): array
         $students = $this->studentModel->getStudentsWithClassAndEnrollment($selectedYear);
 
         $removedPriorStatuses = $this->removedPriorYearStudentStatuses($selectedYear);
+        $makeUpExamStudentIds = array_fill_keys($this->makeUpExamStudentIds($selectedYear), true);
         service('studentYearStatus')->attachToStudents($students, $selectedYear);
 
         foreach ($students as &$s) {
             // ===== Ensure IDs needed by the modal =====
             $s['student_id'] = (int)($s['id'] ?? 0);
+            $s['make_up_exam'] = isset($makeUpExamStudentIds[$s['student_id']]) ? 'Yes' : 'No';
             $priorRemovedStatus = $removedPriorStatuses[$s['student_id']] ?? null;
             $s['removed_previous_year'] = $priorRemovedStatus !== null ? 'Yes' : 'No';
             $s['prior_removed_status'] = $priorRemovedStatus;
@@ -528,6 +530,54 @@ private function getPreviousSchoolYear(string $schoolYear): string
     return '';
 }
 
+/**
+ * Return students whose latest deliberation decision for the source school year
+ * requires a make-up exam.
+ */
+private function makeUpExamStudentIds(string $selectedYear): array
+{
+    $sourceYear = $this->getPreviousSchoolYear($selectedYear);
+    if ($sourceYear === '' || ! $this->db->tableExists('student_decisions')) {
+        return [];
+    }
+
+    $select = ['student_id', 'decision'];
+    $hasStandardDecision = $this->db->fieldExists('deliberation_decision_standard', 'student_decisions');
+    if ($hasStandardDecision) {
+        $select[] = 'deliberation_decision_standard';
+    }
+
+    $rows = $this->db->table('student_decisions')
+        ->select($select)
+        ->where('school_year', $sourceYear)
+        ->orderBy('updated_at', 'DESC')
+        ->orderBy('id', 'DESC')
+        ->get()
+        ->getResultArray();
+
+    $latestDecisionSeen = [];
+    $studentIds = [];
+
+    foreach ($rows as $row) {
+        $studentId = (int) ($row['student_id'] ?? 0);
+        if ($studentId <= 0 || isset($latestDecisionSeen[$studentId])) {
+            continue;
+        }
+
+        $latestDecisionSeen[$studentId] = true;
+        $decision = $hasStandardDecision
+            ? DeliberationDecision::normalize($row['deliberation_decision_standard'] ?? null)
+            : null;
+        $decision ??= DeliberationDecision::normalize($row['decision'] ?? null);
+
+        if ($decision === DeliberationDecision::MAKE_UP_EXAM) {
+            $studentIds[] = $studentId;
+        }
+    }
+
+    return $studentIds;
+}
+
 private function getSchoolYearStartYear(string $schoolYear): ?int
 {
     $schoolYear = trim($schoolYear);