root
679 lines
26 KiB
PHP
679 lines
26 KiB
PHP
<?php
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namespace App\Controllers\View;
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use App\Controllers\BaseController;
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use App\Models\StudentClassModel;
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use App\Models\ClassPreparationLogModel;
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use App\Models\ConfigurationModel;
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use App\Models\ClassSectionModel;
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use App\Models\ClassPrepAdjustmentModel;
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use App\Models\UserModel;
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class ClassPreparationController extends BaseController
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{
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protected $studentClassModel;
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protected $prepLogModel;
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protected $classSectionModel;
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protected $configModel;
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protected $userModel;
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protected $db;
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protected $schoolYear;
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protected $semester;
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protected $adjustmentModel;
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/** Cache for roster presence per school year. */
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private array $rosterPresenceCache = [];
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/** Cache table-column checks to avoid repeated schema queries. */
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private array $columnExistsCache = [];
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// Inside ClassPreparationController (class scope, not inside a method)
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private array $allowedPrepCategories = [
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'Grade Box',
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'Large Table',
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'Regular Chair',
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'Small Chair',
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'Small Table',
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'Teacher Chair',
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'Trash Bin',
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'White Board',
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];
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public function __construct()
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{
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$this->studentClassModel = new StudentClassModel();
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$this->prepLogModel = new ClassPreparationLogModel();
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$this->classSectionModel = new ClassSectionModel();
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$this->configModel = new ConfigurationModel();
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$this->adjustmentModel = new ClassPrepAdjustmentModel();
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$this->userModel = new UserModel();
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$this->db = \Config\Database::connect();
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$this->schoolYear = $this->configModel->getConfig('school_year');
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$this->semester = $this->configModel->getConfig('semester');
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}
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public function index()
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{
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$schoolYear = (string)($this->request->getGet('school_year') ?? $this->schoolYear);
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$semParam = $this->request->getGet('semester');
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$semester = (is_string($semParam) && $semParam !== '') ? (string)$semParam : (string)$this->semester;
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$allowed = $this->allowedPrepCategories;
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$hasRoster = $this->hasRosterForSchoolYear($schoolYear);
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// 1) Get student count per class-section (distinct students, correct semester)
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$scQ = $this->db->table('student_class sc')
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->select('sc.class_section_id, COUNT(DISTINCT sc.student_id) AS student_count', false)
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->join('students s', 's.id = sc.student_id', 'inner')
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->where('s.is_active', 1)
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->where('sc.school_year', $schoolYear);
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$classSections = $hasRoster
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? $scQ->groupBy('sc.class_section_id')->get()->getResultArray()
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: [];
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// 2) Inventory availability — prefer good_qty when present, else condition='good' quantity.
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$inventoryMap = $this->buildInventoryAvailability($schoolYear, $semester, $allowed);
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// Seed totals with allowed categories for stable ordering
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$requiredTotals = array_fill_keys($allowed, 0);
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$prepResults = [];
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// 3) Build prep per section (once!)
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foreach ($classSections as $section) {
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$classSectionId = $section['class_section_id'];
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$studentCount = (int)$section['student_count'];
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$classLevel = $this->getClassLevelBySection($classSectionId);
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$className = $this->classSectionModel->getClassSectionNameBySectionId($classSectionId);
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// Calculate required items (whitelist inside)
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$baseItems = $this->calculatePrepItems($studentCount, $classLevel, $classSectionId, $schoolYear);
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// --- Apply adjustments (only Small/Large Table), clamp >= 0 ---
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$rawAdjustments = $this->getAdjustments((string) $classSectionId, (string) $schoolYear);
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$adjMap = ['Large Table' => 0, 'Small Table' => 0];
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foreach ($rawAdjustments as $a) {
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$item = $a['item_name'];
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$delta = (int)$a['adjustment'];
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if (array_key_exists($item, $adjMap)) {
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$adjMap[$item] = $delta;
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}
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if (isset($baseItems[$item])) {
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$baseItems[$item] = max(0, (int)$baseItems[$item] + $delta);
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} elseif (in_array($item, $allowed, true)) {
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$baseItems[$item] = max(0, $delta);
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}
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}
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// 4) Accumulate global totals (allowed only)
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foreach ($allowed as $cat) {
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$requiredTotals[$cat] += (int)($baseItems[$cat] ?? 0);
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}
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// 5) Compare with last snapshot; do not save here — only on print or explicit API
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$oldSnap = $this->getLatestPrepSnapshot((string) $classSectionId, (string) $schoolYear);
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$oldPrep = $oldSnap ? json_decode($oldSnap['prep_data'], true) : [];
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$hasChanged = $this->hasPrepChanged($baseItems, $oldPrep);
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// 6) Push exactly ONCE
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$prepResults[] = [
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'class_section' => $className,
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'class_section_id' => $classSectionId,
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'student_count' => $studentCount,
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'class_level' => $classLevel,
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'prep_items' => $baseItems,
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'needs_print' => $hasChanged,
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'last_printed_at' => $oldSnap['created_at'] ?? null,
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'adjustments' => $adjMap,
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];
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}
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// 7) Shortages (compare totals vs inventory)
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$shortages = [];
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foreach ($requiredTotals as $item => $reqQty) {
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$have = (int)($inventoryMap[$item] ?? 0);
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if ($have < (int)$reqQty) {
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$shortages[$item] = (int)$reqQty - $have;
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}
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}
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return view('class_prep/list', [
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'prepResults' => $prepResults,
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'schoolYear' => $schoolYear,
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'semester' => $semester,
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'shortages' => $shortages,
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'totalNeeded' => $requiredTotals,
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'available' => $inventoryMap,
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// For temporary debugging, you can pass these too:
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// 'joinGood' => $joinGood, 'nameGood' => $nameGood, 'joinCond' => $joinCond, 'nameCond' => $nameCond,
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]);
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}
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private function getTeacherCountForSection(string $classSectionId, ?string $schoolYear = null): int
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{
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$schoolYear = $schoolYear ?? $this->schoolYear;
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// positions: 'main' and 'ta' (per your new schema)
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$row = $this->db->table('teacher_class')
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->select('COUNT(*) AS cnt')
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->where('class_section_id', $classSectionId)
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->whereIn('position', ['main', 'ta'])
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->where('school_year', $schoolYear)
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->get()->getRowArray();
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return (int)($row['cnt'] ?? 0);
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}
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private function calculatePrepItems(int $students, int $classLevel, string $classSectionId, ?string $schoolYear = null): array
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{
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// 1) Stable keys: your whitelist, all zero to start
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$allowed = $this->allowedPrepCategories;
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$items = array_fill_keys($allowed, 0);
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// 2) Fetch only the classroom categories you care about (optionally with grade bounds)
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$categories = $this->db->table('inventory_categories')
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->select('name, grade_min, grade_max')
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->where('type', 'classroom')
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->whereIn('name', $allowed)
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->orderBy('name')
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->get()
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->getResultArray();
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// 3) Rules
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$isLowerGrades = in_array($classLevel, [1, 2], true);
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$teacherCount = $this->getTeacherCountForSection($classSectionId, $schoolYear ?? $this->schoolYear);
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foreach ($categories as $cat) {
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$name = $cat['name']; // e.g., 'Small Table'
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$gradeMin = $cat['grade_min']; // may be null
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$gradeMax = $cat['grade_max']; // may be null
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// Respect optional bounds
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if ($gradeMin !== null && $classLevel < (int)$gradeMin) {
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$items[$name] = 0;
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continue;
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}
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if ($gradeMax !== null && $classLevel > (int)$gradeMax) {
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$items[$name] = 0;
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continue;
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}
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$qty = 0;
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switch (strtolower($name)) {
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case 'small table':
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$qty = $isLowerGrades ? (int)ceil($students / 3) : 0;
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break;
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case 'large table':
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$qty = $isLowerGrades ? 0 : (int)ceil($students / 4);
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break;
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case 'small chair':
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$qty = $isLowerGrades ? $students : 0;
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break;
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case 'regular chair':
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$qty = $isLowerGrades ? 0 : $students;
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break;
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case 'teacher chair':
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$qty = (int)$teacherCount;
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break;
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case 'trash bin':
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case 'white board':
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case 'grade box':
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$qty = 1;
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break;
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default:
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$qty = 0;
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}
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// Only set for allowed keys (guards against unexpected DB rows)
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if (array_key_exists($name, $items)) {
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$items[$name] = $qty;
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}
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}
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return $items;
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}
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public function saveAdjustment()
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{
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$data = $this->request->getPost();
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$sectionId = $data['class_section_id'];
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$schoolYear = $data['school_year'];
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$adjustments = $data['adjustments'] ?? [];
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foreach ($adjustments as $itemName => $adjustment) {
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$adjustmentQuery = $this->adjustmentModel
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->where('class_section_id', $sectionId)
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->where('item_name', $itemName);
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$adjustmentTable = $this->adjustmentModel->getTable();
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if ($schoolYear !== '' && $this->tableHasColumn($adjustmentTable, 'school_year')) {
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$adjustmentQuery->where('school_year', $schoolYear);
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}
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$row = $adjustmentQuery->first();
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if ($row) {
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// Update
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$this->adjustmentModel->update($row['id'], ['adjustment' => (int)$adjustment, 'adjustable' => 1]);
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} else {
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// Insert
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$insertData = [
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'class_section_id' => $sectionId,
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'item_name' => $itemName,
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'adjustment' => (int) $adjustment,
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'adjustable' => 1,
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];
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if ($schoolYear !== '' && $this->tableHasColumn($adjustmentTable, 'school_year')) {
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$insertData['school_year'] = $schoolYear;
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}
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$this->adjustmentModel->insert($insertData);
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}
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}
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return redirect()->to(site_url('class-prep?school_year=' . urlencode($schoolYear)))
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->with('success', 'Adjustments saved successfully.');
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}
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/* ---------- helpers ---------- */
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private function hasPrepChanged(array $new, array $old): bool
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{
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ksort($new);
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ksort($old);
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return json_encode($new) !== json_encode($old);
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}
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public function print($classSectionId, $schoolYear)
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{
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// Friendly label (if you have this helper)
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$className = $this->classSectionModel->getClassSectionNameBySectionId($classSectionId) ?? $classSectionId;
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// Distinct student count for this term
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$studentQ = $this->db->table('student_class sc')
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->select('COUNT(DISTINCT sc.student_id) AS cnt', false)
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->join('students s', 's.id = sc.student_id', 'inner')
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->where('s.is_active', 1)
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->where('sc.class_section_id', $classSectionId)
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->where('sc.school_year', $schoolYear);
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$studentRow = $studentQ->get()->getRowArray();
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$studentCount = (int)($studentRow['cnt'] ?? 0);
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// Live calc + adjustments
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$classLevel = $this->getClassLevelBySection((string)$classSectionId);
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$items = $this->calculatePrepItems($studentCount, $classLevel, (string)$classSectionId, (string)$schoolYear);
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$rawAdjustments = $this->adjustmentModel
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->where('class_section_id', $classSectionId)
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->where('school_year', $schoolYear)
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->where('adjustable', 1)
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->findAll();
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foreach ($rawAdjustments as $a) {
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$item = $a['item_name'];
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$delta = (int)$a['adjustment'];
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if (isset($items[$item])) $items[$item] = max(0, (int)$items[$item] + $delta);
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}
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// Record a snapshot at print time as the new baseline
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$this->prepLogModel->insert(
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$this->buildPrepLogData(
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(string) $classSectionId,
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(string) $className,
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(string) $schoolYear,
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$items,
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utc_now()
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)
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);
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// Return PRINT view (HTML) that auto-opens the print dialog
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return view('class_prep/print', [
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'classSectionId' => $classSectionId,
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'classSection' => $className,
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'schoolYear' => $schoolYear,
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'prepItems' => $items,
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]);
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}
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/**
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* API: Return class prep data and change flags for all sections in a year.
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* GET: school_year
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* Response: { ok, schoolYear, results:[{ class_section_id, class_section, student_count, class_level, prep_items, needs_print, last_printed_at }], totals, shortages }
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*/
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public function apiList()
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{
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$schoolYear = (string)($this->request->getGet('school_year') ?? $this->schoolYear);
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$semParam = $this->request->getGet('semester');
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$semester = (is_string($semParam) && $semParam !== '') ? (string)$semParam : (string)$this->semester;
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$allowed = $this->allowedPrepCategories;
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$hasRoster = $this->hasRosterForSchoolYear($schoolYear);
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// Student counts
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$scQ = $this->db->table('student_class sc')
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->select('sc.class_section_id, COUNT(DISTINCT sc.student_id) AS student_count', false)
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->join('students s', 's.id = sc.student_id', 'inner')
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->where('s.is_active', 1)
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->where('sc.school_year', $schoolYear);
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$classSections = $hasRoster
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? $scQ->groupBy('sc.class_section_id')->get()->getResultArray()
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: [];
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// Build inventory availability maps
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$inventoryMap = $this->buildInventoryAvailability($schoolYear, $semester, $allowed);
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$requiredTotals = array_fill_keys($allowed, 0);
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$results = [];
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foreach ($classSections as $row) {
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$classSectionId = (string)$row['class_section_id'];
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$studentCount = (int)$row['student_count'];
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$classLevel = $this->getClassLevelBySection($classSectionId);
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$className = $this->classSectionModel->getClassSectionNameBySectionId($classSectionId);
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$baseItems = $this->calculatePrepItems($studentCount, $classLevel, $classSectionId, $schoolYear);
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$rawAdjustments = $this->getAdjustments((string) $classSectionId, (string) $schoolYear);
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$adjMap = ['Large Table' => 0, 'Small Table' => 0];
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foreach ($rawAdjustments as $a) {
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$item = $a['item_name'];
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$delta = (int)$a['adjustment'];
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if (array_key_exists($item, $adjMap)) $adjMap[$item] = $delta;
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if (isset($baseItems[$item])) $baseItems[$item] = max(0, (int)$baseItems[$item] + $delta);
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}
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foreach ($allowed as $cat) {
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$requiredTotals[$cat] += (int)($baseItems[$cat] ?? 0);
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}
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$oldSnap = $this->getLatestPrepSnapshot((string) $classSectionId, (string) $schoolYear);
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$oldPrep = $oldSnap ? json_decode($oldSnap['prep_data'], true) : [];
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$hasChanged = $this->hasPrepChanged($baseItems, $oldPrep);
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$results[] = [
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'class_section' => $className,
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'class_section_id' => $classSectionId,
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'student_count' => $studentCount,
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'class_level' => $classLevel,
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'prep_items' => $baseItems,
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'needs_print' => $hasChanged,
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'last_printed_at' => $oldSnap['created_at'] ?? null,
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'adjustments' => $adjMap,
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];
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}
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// Shortages
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$shortages = [];
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foreach ($requiredTotals as $item => $reqQty) {
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$have = (int)($inventoryMap[$item] ?? 0);
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if ($have < (int)$reqQty) $shortages[$item] = (int)$reqQty - $have;
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}
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return $this->response->setJSON([
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'ok' => true,
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'schoolYear' => $schoolYear,
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'results' => $results,
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'totals' => $requiredTotals,
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'shortages' => $shortages,
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'csrf_token' => csrf_token(),
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'csrf_hash' => csrf_hash(),
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]);
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}
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/**
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* API: Mark selected classes as printed (save baseline snapshot).
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* POST: school_year, class_section_ids[]
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*/
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public function apiMarkPrinted()
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{
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$schoolYear = (string)($this->request->getPost('school_year') ?? $this->schoolYear);
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$semParam = $this->request->getPost('semester');
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$semester = (is_string($semParam) && $semParam !== '') ? (string)$semParam : (string)$this->semester;
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$ids = $this->request->getPost('class_section_ids') ?? [];
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if (!is_array($ids)) $ids = $ids ? [$ids] : [];
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$ids = array_values(array_unique(array_filter(array_map('strval', $ids))));
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$now = utc_now();
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$count = 0;
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foreach ($ids as $classSectionId) {
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$studentQ = $this->db->table('student_class sc')
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->select('COUNT(DISTINCT sc.student_id) AS cnt', false)
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->join('students s', 's.id = sc.student_id', 'inner')
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->where('s.is_active', 1)
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->where('sc.class_section_id', $classSectionId)
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->where('sc.school_year', $schoolYear);
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$studentRow = $studentQ->get()->getRowArray();
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$studentCount = (int)($studentRow['cnt'] ?? 0);
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$classLevel = $this->getClassLevelBySection((string)$classSectionId);
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$className = $this->classSectionModel->getClassSectionNameBySectionId($classSectionId) ?? $classSectionId;
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$items = $this->calculatePrepItems($studentCount, $classLevel, (string)$classSectionId, (string)$schoolYear);
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$rawAdjustments = $this->getAdjustments((string) $classSectionId, (string) $schoolYear);
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foreach ($rawAdjustments as $a) {
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$item = $a['item_name'];
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$delta = (int)$a['adjustment'];
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if (isset($items[$item])) $items[$item] = max(0, (int)$items[$item] + $delta);
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}
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try {
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$this->prepLogModel->insert(
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$this->buildPrepLogData(
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(string) $classSectionId,
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(string) $className,
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(string) $schoolYear,
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$items,
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$now
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)
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);
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$count++;
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} catch (\Throwable $e) {
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// ignore and continue
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}
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}
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return $this->response->setJSON([
|
|
'ok' => true,
|
|
'updated' => $count,
|
|
'csrf_token' => csrf_token(),
|
|
'csrf_hash' => csrf_hash(),
|
|
]);
|
|
}
|
|
|
|
|
|
private function getClassLevelBySection(string $classSectionId): int
|
|
{
|
|
// Prefer the human-readable section name for grade parsing.
|
|
$sectionName = $this->classSectionModel->getClassSectionNameBySectionId($classSectionId);
|
|
$label = $sectionName !== null && $sectionName !== '' ? (string) $sectionName : $classSectionId;
|
|
|
|
// If it's clearly Kindergarten (KG/K)
|
|
if (preg_match('/^(kg|k)(\b|[^a-z0-9])/i', $label)) {
|
|
return 1; // treat Kindergarten as lower grade
|
|
}
|
|
|
|
// Remove non-digits, then infer by leading digit
|
|
$numValue = (int) preg_replace('/\D/', '', $label);
|
|
|
|
if ($numValue > 0 && $numValue < 30) {
|
|
$firstDigit = (int) substr((string) $numValue, 0, 1);
|
|
return $firstDigit === 1 ? 1 : ($firstDigit === 2 ? 2 : 3);
|
|
}
|
|
|
|
// Default to upper grades (3+)
|
|
return 3;
|
|
}
|
|
|
|
/**
|
|
* Returns true when student_class contains at least one assignment
|
|
* for the selected school year.
|
|
*/
|
|
private function hasRosterForSchoolYear(string $schoolYear): bool
|
|
{
|
|
$year = trim($schoolYear);
|
|
if ($year === '') {
|
|
return false;
|
|
}
|
|
|
|
if (array_key_exists($year, $this->rosterPresenceCache)) {
|
|
return $this->rosterPresenceCache[$year];
|
|
}
|
|
|
|
$exists = $this->db->table('student_class')
|
|
->where('school_year', $year)
|
|
->limit(1)
|
|
->countAllResults() > 0;
|
|
|
|
$this->rosterPresenceCache[$year] = $exists;
|
|
|
|
return $exists;
|
|
}
|
|
|
|
private function tableHasColumn(string $table, string $column): bool
|
|
{
|
|
$key = $table . '.' . $column;
|
|
|
|
if (!array_key_exists($key, $this->columnExistsCache)) {
|
|
$this->columnExistsCache[$key] = $this->db->fieldExists($column, $table);
|
|
}
|
|
|
|
return $this->columnExistsCache[$key];
|
|
}
|
|
|
|
private function getAdjustments(string $classSectionId, string $schoolYear): array
|
|
{
|
|
$query = $this->adjustmentModel
|
|
->where('class_section_id', $classSectionId)
|
|
->where('adjustable', 1);
|
|
|
|
$table = $this->adjustmentModel->getTable();
|
|
|
|
if ($schoolYear !== '' && $this->tableHasColumn($table, 'school_year')) {
|
|
$query->where('school_year', $schoolYear);
|
|
}
|
|
|
|
return $query->findAll();
|
|
}
|
|
|
|
private function getLatestPrepSnapshot(string $classSectionId, string $schoolYear): ?array
|
|
{
|
|
$query = $this->prepLogModel
|
|
->where('class_section_id', $classSectionId);
|
|
|
|
$table = $this->prepLogModel->getTable();
|
|
|
|
if ($schoolYear !== '' && $this->tableHasColumn($table, 'school_year')) {
|
|
$query->where('school_year', $schoolYear);
|
|
}
|
|
|
|
return $query
|
|
->orderBy('created_at', 'DESC')
|
|
->first();
|
|
}
|
|
|
|
private function buildPrepLogData(
|
|
string $classSectionId,
|
|
string $className,
|
|
string $schoolYear,
|
|
array $items,
|
|
string $createdAt
|
|
): array {
|
|
$data = [
|
|
'class_section_id' => $classSectionId,
|
|
'class_section' => $className,
|
|
'prep_data' => json_encode($items),
|
|
'created_at' => $createdAt,
|
|
];
|
|
|
|
$table = $this->prepLogModel->getTable();
|
|
|
|
if ($schoolYear !== '' && $this->tableHasColumn($table, 'school_year')) {
|
|
$data['school_year'] = $schoolYear;
|
|
}
|
|
|
|
return $data;
|
|
}
|
|
|
|
private function buildInventoryAvailability(string $schoolYear, string $semester, array $allowed): array
|
|
{
|
|
$inventoryMap = array_fill_keys($allowed, 0);
|
|
|
|
$hasSchoolYear = $this->tableHasColumn('inventory_items', 'school_year');
|
|
$hasSemester = $this->tableHasColumn('inventory_items', 'semester');
|
|
$hasName = $this->tableHasColumn('inventory_items', 'name');
|
|
|
|
$joinRows = $this->db->table('inventory_items ii')
|
|
->select('ic.name AS item_name, COALESCE(SUM(CASE WHEN ii.good_qty IS NOT NULL THEN ii.good_qty WHEN ii.`condition` = "good" THEN ii.quantity ELSE 0 END), 0) AS available', false)
|
|
->join('inventory_categories ic', 'ic.id = ii.category_id', 'left')
|
|
->where('ii.type', 'classroom')
|
|
->whereIn('ic.name', $allowed);
|
|
|
|
if ($hasSchoolYear && $schoolYear !== '') {
|
|
$joinRows->where('ii.school_year', $schoolYear);
|
|
}
|
|
|
|
if ($hasSemester && $semester !== '') {
|
|
$joinRows->where('ii.semester', $semester);
|
|
}
|
|
|
|
$joinRows = $joinRows
|
|
->groupBy('ic.name')
|
|
->get()
|
|
->getResultArray();
|
|
|
|
foreach ($joinRows as $row) {
|
|
$name = (string) ($row['item_name'] ?? '');
|
|
|
|
if ($name !== '' && array_key_exists($name, $inventoryMap)) {
|
|
$inventoryMap[$name] = max(
|
|
$inventoryMap[$name],
|
|
(int) ($row['available'] ?? 0)
|
|
);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Some older schemas store the item name directly on inventory_items.
|
|
* Only run this fallback when that column actually exists.
|
|
*/
|
|
if ($hasName) {
|
|
$nameRows = $this->db->table('inventory_items')
|
|
->select('name AS item_name, COALESCE(SUM(CASE WHEN good_qty IS NOT NULL THEN good_qty WHEN `condition` = "good" THEN quantity ELSE 0 END), 0) AS available', false)
|
|
->where('type', 'classroom')
|
|
->whereIn('name', $allowed);
|
|
|
|
if ($hasSchoolYear && $schoolYear !== '') {
|
|
$nameRows->where('school_year', $schoolYear);
|
|
}
|
|
|
|
if ($hasSemester && $semester !== '') {
|
|
$nameRows->where('semester', $semester);
|
|
}
|
|
|
|
$nameRows = $nameRows
|
|
->groupBy('name')
|
|
->get()
|
|
->getResultArray();
|
|
|
|
foreach ($nameRows as $row) {
|
|
$name = (string) ($row['item_name'] ?? '');
|
|
|
|
if ($name !== '' && array_key_exists($name, $inventoryMap)) {
|
|
$inventoryMap[$name] = max(
|
|
$inventoryMap[$name],
|
|
(int) ($row['available'] ?? 0)
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
return $inventoryMap;
|
|
}
|
|
} |