<?php

namespace App\Filament\Pages;

use App\Models\AcademicYear;
use App\Models\ClassRoom;
use App\Models\ClassSubject;
use App\Models\Student;
use App\Models\SchoolInformation;
use Filament\Notifications\Notification;
use Filament\Pages\Page;
use Carbon\Carbon;
use function PHPUnit\Framework\isEmpty;

Carbon::setLocale('id');

class ReportPreview extends Page
{
    protected static ?string $navigationIcon = 'heroicon-o-document-text';

    protected static string $view = 'filament.pages.report-preview';

    public $student;
    public $class;
    public $class_name;
    public $academic_year;
    public $semester;

    public $school_information;

    public $table = [];

    public function mount()
    {
        $this->loadData();
        $this->loadAssessment();
    }

    protected function loadData() : void
    {
        $this->student = Student::find(request()->query('studentId'));
        $this->class = ClassRoom::find(request()->query('classId'));
        $this->academic_year = AcademicYear::find(request()->query('yearId'));
        $this->semester = request()->query('semester');
        $this->school_information = SchoolInformation::first();

        $this->class_name = $this->toRoman($this->class->class_level) . ' ' . $this->extractClassLetter($this->class->class_name);
    }

    protected function loadAssessment(): void
    {
        $requiredParams = ['studentId', 'classId', 'semester', 'yearId'];

        foreach ($requiredParams as $param) {
            if (blank(request()->query($param))) {
                Notification::make()
                    ->title('Missing Data')
                    ->body("The parameter '{$param}' is required.")
                    ->danger()
                    ->send();

                return;
            }
        }

        $student_id = request()->query('studentId');
        $class_id = request()->query('classId');
        $semester = request()->query('semester');
        $year_id = request()->query('yearId');

        // Class Student Mapping
        $classSubjects = ClassSubject::with(['subject', 'class', 'academicYear'])
            ->where('class_room_id', $class_id)
            ->where('academic_year_id', $year_id)
            ->get()
            ->sortByDesc(function ($item) {
                return $item->subject->name;
            })
            ->toArray();


        $subjects = [];

        foreach ($classSubjects as $classSubject) {
            $category = strtolower($classSubject['subject']['category']);
            $subjectName = $classSubject['subject']['name'];
            $subjectId = $classSubject['subject']['id'];
            $subjects[$category][$subjectId] = $subjectName;
        }

        $this->table["subjects"] = $subjects;

//        dd($subjects);
    }

    public function extractClassLetter($className)
    {
        preg_match('/[A-Z]+$/i', trim($className), $matches);
        return $matches[0] ?? '';
    }

    public function toRoman($number)
    {
        $map = [
            'M'  => 1000,
            'CM' => 900,
            'D'  => 500,
            'CD' => 400,
            'C'  => 100,
            'XC' => 90,
            'L'  => 50,
            'XL' => 40,
            'X'  => 10,
            'IX' => 9,
            'V'  => 5,
            'IV' => 4,
            'I'  => 1,
        ];

        $returnValue = '';
        while ($number > 0) {
            foreach ($map as $roman => $int) {
                if ($number >= $int) {
                    $number -= $int;
                    $returnValue .= $roman;
                    break;
                }
            }
        }

        return $returnValue;
    }

    public static function shouldRegisterNavigation(): bool
    {
        return false;
    }
}