reconstruction of the project
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@@ -0,0 +1,371 @@
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<?php
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namespace App\Services\AttendanceTracking;
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use App\Models\AttendanceData;
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use App\Models\Student;
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use App\Models\StudentClass;
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use Illuminate\Support\Facades\DB;
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class AttendanceViolationStudentResolverService
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{
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public function __construct(
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protected Student $studentModel,
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protected StudentClass $studentClassModel,
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protected AttendanceData $attendanceDataModel
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) {
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}
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public function resolveForSchoolYear(string $schoolYear, ?string $semester = null): array
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{
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$debug = [
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'class_students' => 0,
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'student_ids' => 0,
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];
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$classStudentsQuery = $this->studentClassModel->query();
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if (method_exists($this->studentClassModel, 'scopeActive')) {
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$classStudentsQuery->active();
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}
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$classStudents = $classStudentsQuery
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->where('school_year', $schoolYear)
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->get()
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->toArray();
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$debug['class_students'] = count($classStudents);
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if (empty($classStudents)) {
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$latestTerm = DB::table('student_class')
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->select('school_year', 'semester')
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->orderByDesc('id')
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->first();
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if ($latestTerm && !empty($latestTerm->school_year)) {
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$schoolYear = (string) $latestTerm->school_year;
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if (!empty($latestTerm->semester)) {
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$semester = (string) $latestTerm->semester;
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}
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$classStudentsQuery = $this->studentClassModel->query();
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if (method_exists($this->studentClassModel, 'scopeActive')) {
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$classStudentsQuery->active();
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}
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$classStudents = $classStudentsQuery
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->where('school_year', $schoolYear)
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->get()
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->toArray();
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$debug['class_students'] = count($classStudents);
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}
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}
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[$studentIds, $studentCodes] = $this->extractStudentIdentifiers($classStudents);
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if (empty($studentIds) && empty($studentCodes)) {
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[$studentIds, $studentCodes] = $this->deriveIdentifiersFromAttendanceData($schoolYear);
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}
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[$studentIds, $studentCodes] = $this->filterInactiveIdentifiers($studentIds, $studentCodes);
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$debug['student_ids'] = count($studentIds) + count($studentCodes);
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if (empty($studentIds) && empty($studentCodes)) {
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return [
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'school_year' => $schoolYear,
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'semester' => $semester,
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'student_ids' => [],
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'student_codes' => [],
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'students' => [],
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'student_code_to_id'=> [],
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'existing_ids' => [],
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'debug' => $debug,
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];
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}
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$students = $this->loadActiveStudents($studentIds, $studentCodes);
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$students = $this->addPlaceholderStudentsForMissingCodes($students, $studentCodes);
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$students = $this->ensureEntriesForAllIdentifiers($students, $studentIds, $studentCodes);
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[$studentCodeToId, $existingIds] = $this->buildLookupMaps($students);
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return [
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'school_year' => $schoolYear,
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'semester' => $semester,
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'student_ids' => $studentIds,
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'student_codes' => $studentCodes,
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'students' => $students,
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'student_code_to_id' => $studentCodeToId,
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'existing_ids' => $existingIds,
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'debug' => $debug,
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];
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}
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public function ensureAttendanceStudentExists(
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array &$students,
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array &$studentCodeToId,
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array &$existingIds,
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mixed $rawStudentId
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): ?int {
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if (is_numeric($rawStudentId)) {
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$sid = (int) $rawStudentId;
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if ($sid <= 0) {
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return null;
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}
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if (!isset($existingIds[$sid])) {
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$students[] = [
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'id' => $sid,
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'school_id' => (string) $sid,
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'firstname' => (string) $sid,
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'lastname' => '',
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'parent_id' => 0,
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];
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$existingIds[$sid] = true;
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}
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return $sid;
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}
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if (is_string($rawStudentId)) {
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$code = trim($rawStudentId);
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if ($code === '') {
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return null;
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}
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$sid = $studentCodeToId[$code] ?? null;
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if ($sid === null) {
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$sid = abs(crc32($code)) ?: random_int(3000000, 3999999);
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$studentCodeToId[$code] = $sid;
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if (!isset($existingIds[$sid])) {
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$students[] = [
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'id' => $sid,
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'school_id' => $code,
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'firstname' => $code,
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'lastname' => '',
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'parent_id' => 0,
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];
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$existingIds[$sid] = true;
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}
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}
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return $sid;
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}
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return null;
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}
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protected function extractStudentIdentifiers(array $classStudents): array
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{
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$studentIds = [];
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$studentCodes = [];
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foreach ($classStudents as $row) {
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$raw = $row['student_id'] ?? null;
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if (is_numeric($raw)) {
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$studentIds[] = (int) $raw;
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} elseif (is_string($raw) && $raw !== '') {
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$studentCodes[] = trim($raw);
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}
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}
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$studentIds = array_values(array_unique(array_filter($studentIds, fn ($v) => $v > 0)));
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$studentCodes = array_values(array_unique(array_filter($studentCodes, fn ($v) => $v !== '')));
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return [$studentIds, $studentCodes];
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}
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protected function deriveIdentifiersFromAttendanceData(string $schoolYear): array
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{
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$studentIds = [];
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$studentCodes = [];
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$attendanceStudents = DB::table($this->attendanceDataModel->getTable())
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->selectRaw('DISTINCT student_id')
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->when(!empty($schoolYear), fn ($q) => $q->where('school_year', $schoolYear))
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->orderBy('student_id')
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->get();
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foreach ($attendanceStudents as $r) {
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$raw = $r->student_id ?? null;
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if (is_numeric($raw)) {
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$studentIds[] = (int) $raw;
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} elseif (is_string($raw) && $raw !== '') {
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$studentCodes[] = trim($raw);
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}
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}
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$studentIds = array_values(array_unique(array_filter($studentIds, fn ($v) => $v > 0)));
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$studentCodes = array_values(array_unique(array_filter($studentCodes, fn ($v) => $v !== '')));
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return [$studentIds, $studentCodes];
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}
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protected function filterInactiveIdentifiers(array $studentIds, array $studentCodes): array
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{
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if (!empty($studentIds)) {
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$inactiveRows = $this->studentModel->query()
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->select('id')
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->whereIn('id', $studentIds)
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->where('is_active', 0)
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->get()
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->toArray();
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$inactiveIdSet = array_flip(array_map(
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static fn ($r) => (int) ($r['id'] ?? 0),
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$inactiveRows
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));
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$studentIds = array_values(array_filter(
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$studentIds,
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static fn ($id) => !isset($inactiveIdSet[$id])
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));
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}
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if (!empty($studentCodes)) {
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$inactiveCodeRows = $this->studentModel->query()
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->select('school_id')
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->whereIn('school_id', $studentCodes)
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->where('is_active', 0)
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->get()
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->toArray();
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$inactiveCodeSet = array_flip(array_map(
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static fn ($r) => (string) ($r['school_id'] ?? ''),
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$inactiveCodeRows
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));
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$studentCodes = array_values(array_filter(
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$studentCodes,
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static fn ($code) => $code !== '' && !isset($inactiveCodeSet[$code])
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));
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}
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return [$studentIds, $studentCodes];
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}
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protected function loadActiveStudents(array $studentIds, array $studentCodes): array
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{
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$students = [];
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if (!empty($studentIds)) {
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$students = $this->studentModel->query()
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->whereIn('id', $studentIds)
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->where('is_active', 1)
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->get()
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->toArray();
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}
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if (!empty($studentCodes)) {
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$byCode = $this->studentModel->query()
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->whereIn('school_id', $studentCodes)
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->where('is_active', 1)
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->get()
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->toArray();
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$seen = array_flip(array_map(fn ($s) => (int) ($s['id'] ?? 0), $students));
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foreach ($byCode as $s) {
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$sid = (int) ($s['id'] ?? 0);
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if ($sid > 0 && !isset($seen[$sid])) {
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$students[] = $s;
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$seen[$sid] = true;
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}
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}
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}
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return $students;
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}
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protected function addPlaceholderStudentsForMissingCodes(array $students, array $studentCodes): array
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{
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$knownCodes = [];
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foreach ($students as $s) {
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$code = trim((string) ($s['school_id'] ?? ''));
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if ($code !== '') {
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$knownCodes[$code] = true;
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}
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}
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foreach ($studentCodes as $code) {
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if (!isset($knownCodes[$code])) {
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$virtualId = abs(crc32($code)) ?: random_int(1000000, 1999999);
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$students[] = [
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'id' => $virtualId,
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'school_id' => $code,
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'firstname' => $code,
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'lastname' => '',
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'parent_id' => 0,
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'class_name' => '',
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];
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}
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}
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return $students;
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}
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protected function ensureEntriesForAllIdentifiers(array $students, array $studentIds, array $studentCodes): array
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{
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[$studentCodeToId, $existingIds] = $this->buildLookupMaps($students);
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foreach (array_merge($studentIds, $studentCodes) as $sidOrCode) {
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if (is_numeric($sidOrCode)) {
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$sid = (int) $sidOrCode;
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if ($sid > 0 && !isset($existingIds[$sid])) {
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$students[] = [
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'id' => $sid,
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'school_id' => (string) $sid,
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'firstname' => (string) $sid,
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'lastname' => '',
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'parent_id' => 0,
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'class_name' => '',
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];
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$existingIds[$sid] = true;
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}
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} else {
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$code = (string) $sidOrCode;
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if ($code !== '' && !isset($studentCodeToId[$code])) {
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$virtualId = abs(crc32($code)) ?: random_int(2000000, 2999999);
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$students[] = [
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'id' => $virtualId,
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'school_id' => $code,
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'firstname' => $code,
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'lastname' => '',
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'parent_id' => 0,
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'class_name' => '',
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];
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$studentCodeToId[$code] = $virtualId;
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$existingIds[$virtualId] = true;
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}
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}
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}
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return $students;
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}
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protected function buildLookupMaps(array $students): array
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{
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$studentCodeToId = [];
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foreach ($students as $stu) {
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$code = trim((string) ($stu['student_code'] ?? $stu['school_id'] ?? ''));
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if ($code !== '') {
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$studentCodeToId[$code] = (int) ($stu['id'] ?? 0);
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}
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}
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$existingIds = array_flip(array_map(
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fn ($s) => (int) ($s['id'] ?? 0),
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$students
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));
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return [$studentCodeToId, $existingIds];
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}
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}
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