init backend presensi
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mwpn
171
app/Modules/Dashboard/Services/DashboardService.php
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171
app/Modules/Dashboard/Services/DashboardService.php
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<?php
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namespace App\Modules\Dashboard\Services;
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use App\Modules\Academic\Models\StudentModel;
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use App\Modules\Attendance\Models\AttendanceSessionModel;
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use App\Modules\Devices\Models\DeviceModel;
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/**
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* Dashboard Service
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*
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* Aggregates data for dashboard monitoring endpoints.
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*/
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class DashboardService
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{
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protected AttendanceSessionModel $attendanceModel;
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protected DeviceModel $deviceModel;
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protected StudentModel $studentModel;
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/**
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* Minutes threshold for device "online" status
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*/
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protected int $deviceOnlineThresholdMinutes = 2;
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public function __construct()
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{
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$this->attendanceModel = new AttendanceSessionModel();
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$this->deviceModel = new DeviceModel();
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$this->studentModel = new StudentModel();
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}
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/**
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* Get today's attendance summary
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*
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* @return array{total_students: int, present_today: int, late_today: int, outside_zone_today: int, no_schedule_today: int, invalid_device_today: int}
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*/
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public function getSummary(): array
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{
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$db = \Config\Database::connect();
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$totalStudents = (int) $this->studentModel->countAll();
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// Count by status for today only (date part of checkin_at = today)
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$today = date('Y-m-d');
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$builder = $db->table('attendance_sessions');
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$builder->select('status, COUNT(*) as cnt');
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$builder->where('DATE(checkin_at)', $today);
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$builder->groupBy('status');
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$rows = $builder->get()->getResultArray();
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$counts = [
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'PRESENT' => 0,
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'LATE' => 0,
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'OUTSIDE_ZONE' => 0,
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'NO_SCHEDULE' => 0,
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'INVALID_DEVICE' => 0,
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];
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foreach ($rows as $row) {
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if (isset($counts[$row['status']])) {
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$counts[$row['status']] = (int) $row['cnt'];
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}
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}
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return [
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'total_students' => $totalStudents,
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'present_today' => $counts['PRESENT'],
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'late_today' => $counts['LATE'],
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'outside_zone_today' => $counts['OUTSIDE_ZONE'],
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'no_schedule_today' => $counts['NO_SCHEDULE'],
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'invalid_device_today' => $counts['INVALID_DEVICE'],
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];
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}
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/**
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* Get last N attendance check-ins with student, class, subject, device info
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*
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* @param int $limit
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* @return array<int, array{student_name: string, class_name: string, subject: string, checkin_at: string, status: string, device_code: string}>
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*/
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public function getRealtimeCheckins(int $limit = 20): array
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{
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$db = \Config\Database::connect();
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$builder = $db->table('attendance_sessions AS a');
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$builder->select('
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s.name AS student_name,
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c.name AS class_name,
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COALESCE(sub.name, "-") AS subject,
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a.checkin_at,
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a.status,
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d.device_code
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');
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$builder->join('students AS s', 's.id = a.student_id', 'left');
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$builder->join('classes AS c', 'c.id = s.class_id', 'left');
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$builder->join('schedules AS sch', 'sch.id = a.schedule_id', 'left');
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$builder->join('subjects AS sub', 'sub.id = sch.subject_id', 'left');
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$builder->join('devices AS d', 'd.id = a.device_id', 'left');
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$builder->orderBy('a.checkin_at', 'DESC');
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$builder->limit($limit);
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$rows = $builder->get()->getResultArray();
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$out = [];
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foreach ($rows as $row) {
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$out[] = [
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'student_name' => (string) ($row['student_name'] ?? '-'),
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'class_name' => (string) ($row['class_name'] ?? '-'),
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'subject' => (string) ($row['subject'] ?? '-'),
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'checkin_at' => (string) $row['checkin_at'],
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'status' => (string) $row['status'],
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'device_code' => (string) ($row['device_code'] ?? '-'),
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];
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}
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return $out;
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}
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/**
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* Get devices with online status (online if last_seen_at within threshold minutes)
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*
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* @return array<int, array{
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* id: int,
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* device_code: string,
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* device_name: string,
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* is_active: bool,
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* last_seen_at: string|null,
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* online_status: string,
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* latitude: float|null,
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* longitude: float|null,
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* radius_meters: int|null
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* }>
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*/
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public function getDevices(): array
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{
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$devices = $this->deviceModel->findAll();
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$thresholdSeconds = $this->deviceOnlineThresholdMinutes * 60;
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$now = time();
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$out = [];
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foreach ($devices as $d) {
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$lastSeenAt = $d->last_seen_at;
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$lastSeenStr = null;
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$lastSeenTs = null;
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if ($lastSeenAt !== null) {
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$lastSeenStr = is_object($lastSeenAt) && method_exists($lastSeenAt, 'format')
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? $lastSeenAt->format('Y-m-d H:i:s')
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: (string) $lastSeenAt;
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$lastSeenTs = strtotime($lastSeenStr);
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}
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$onlineStatus = 'offline';
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if ($lastSeenTs !== null && ($now - $lastSeenTs) < $thresholdSeconds) {
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$onlineStatus = 'online';
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}
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$out[] = [
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'id' => (int) $d->id,
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'device_code' => $d->device_code,
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'device_name' => (string) ($d->device_name ?? ''),
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'is_active' => (bool) $d->is_active,
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'last_seen_at' => $lastSeenStr,
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'online_status' => $onlineStatus,
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'latitude' => $d->latitude !== null ? (float) $d->latitude : null,
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'longitude' => $d->longitude !== null ? (float) $d->longitude : null,
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'radius_meters' => $d->radius_meters !== null ? (int) $d->radius_meters : null,
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];
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}
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return $out;
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}
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}
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