From d864927957d57ab7c5d45f1e285370c5df0284d0 Mon Sep 17 00:00:00 2001
From: sihoo <hoottogarun@gmail.com>
Date: Tue, 4 Aug 2026 14:55:22 +0900
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---
 lib/screens/teacher_attendance_page.dart | 48 ++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/lib/screens/teacher_attendance_page.dart b/lib/screens/teacher_attendance_page.dart
index c065f69..359d8e1 100644
--- a/lib/screens/teacher_attendance_page.dart
+++ b/lib/screens/teacher_attendance_page.dart
@@ -26,6 +26,7 @@ class _TeacherAttendancePageState extends State<TeacherAttendancePage> {
   Map<String, dynamic> _activeViolationsByStudentId = {}; // 무단반출 중인 학생 (/api/violations/active)
   String? _dismissedAt; // 오늘 가장 최근 하교 처리 시각 (/api/dismissal/latest). 이 시각 이후 기록만 "오늘 출석"으로 표시.
   String? _attendanceTime; // 선생님이 지정한 자습실 출석시간 "HH:MM" (/api/settings/attendance-time). null이면 미설정.
+  String? _globalPermissionUntil; // 하교(12시간)/반출허용시간설정으로 전체 반출이 허용된 경우 그 만료 시각 (/api/permissions/status). null이면 비활성.
   Timer? _timer;
   bool _isLoading = true;
   bool _isRefreshing = false; // 새로고침 버튼 클릭 시 잠깐 도는 표시용
@@ -58,6 +59,7 @@ class _TeacherAttendancePageState extends State<TeacherAttendancePage> {
         http.get(Uri.parse('$baseUrl/api/violations/active')),
         http.get(Uri.parse('$baseUrl/api/dismissal/latest')),
         http.get(Uri.parse('$baseUrl/api/settings/attendance-time')),
+        http.get(Uri.parse('$baseUrl/api/permissions/status')),
       ]);
 
       final usersRes = results[0];
@@ -65,6 +67,7 @@ class _TeacherAttendancePageState extends State<TeacherAttendancePage> {
       final violationsRes = results[2];
       final dismissalRes = results[3];
       final attendanceTimeRes = results[4];
+      final permissionStatusRes = results[5];
 
       if (usersRes.statusCode == 200 && logsRes.statusCode == 200) {
         final usersData = jsonDecode(utf8.decode(usersRes.bodyBytes));
@@ -91,12 +94,22 @@ class _TeacherAttendancePageState extends State<TeacherAttendancePage> {
           attendanceTime = attendanceTimeData['attendanceTime'];
         }
 
+        String? globalPermissionUntil;
+        if (permissionStatusRes.statusCode == 200) {
+          final permissionStatusData =
+              jsonDecode(utf8.decode(permissionStatusRes.bodyBytes));
+          if (permissionStatusData['active'] == true) {
+            globalPermissionUntil = permissionStatusData['permittedUntil'];
+          }
+        }
+
         setState(() {
           _roster = usersData['users'] ?? [];
           _logs = logsData['logs'] ?? [];
           _activeViolationsByStudentId = activeViolations;
           _dismissedAt = dismissedAt;
           _attendanceTime = attendanceTime;
+          _globalPermissionUntil = globalPermissionUntil;
           _isLoading = false;
         });
       } else {
@@ -534,6 +547,7 @@ class _TeacherAttendancePageState extends State<TeacherAttendancePage> {
     return Column(
       children: [
         _buildSummaryCards(total, checkedIn, absent),
+        _buildPermissionBanner(),
         _buildFilterChips(),
         Expanded(
           child: _filteredStudents.isEmpty
@@ -736,6 +750,7 @@ class _TeacherAttendancePageState extends State<TeacherAttendancePage> {
                 ],
               ),
               const SizedBox(height: 20),
+              _buildPermissionBanner(),
               _buildFilterChips(),
               const SizedBox(height: 12),
               Expanded(
@@ -988,6 +1003,39 @@ class _TeacherAttendancePageState extends State<TeacherAttendancePage> {
   }
 
   /// 🔘 필터 칩버튼 (전체 / 출석자 / 미출석자)
+  /// 🔓 하교(12시간)/반출 허용 시간 설정으로 지금 전체 반출이 허용 중이면 눈에 띄게 배너로 알려준다.
+  /// (허용 중일 땐 무단반출을 감지해도 대시보드에 뜨지 않기 때문에, 왜 안 뜨는지 헷갈리지 않게 하기 위함)
+  Widget _buildPermissionBanner() {
+    if (_globalPermissionUntil == null) return const SizedBox.shrink();
+
+    return Container(
+      width: double.infinity,
+      margin: const EdgeInsets.fromLTRB(16, 8, 16, 0),
+      padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 10),
+      decoration: BoxDecoration(
+        color: Colors.amber[100],
+        borderRadius: BorderRadius.circular(12),
+        border: Border.all(color: Colors.amber[400]!),
+      ),
+      child: Row(
+        children: [
+          Icon(Icons.lock_open_rounded, color: Colors.amber[800], size: 20),
+          const SizedBox(width: 8),
+          Expanded(
+            child: Text(
+              '🔓 지금 전체 반출 허용 중입니다 ($_globalPermissionUntil 까지) — 이 시간 동안은 무단반출 경고가 뜨지 않아요.',
+              style: TextStyle(
+                color: Colors.amber[900],
+                fontWeight: FontWeight.bold,
+                fontSize: 12.5,
+              ),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
   Widget _buildFilterChips() {
     return Padding(
       padding: const EdgeInsets.symmetric(vertical: 8, horizontal: 16),