applicant-site/app/Http/Controllers/admin/PageController.php

<?php

namespace App\Http\Controllers\admin;

use App\Enums\FacultyEnum;
use App\Http\Controllers\Controller;
use App\Models\Admission;
use App\Models\Direction;
use App\Models\Faculty;
use App\Models\Subject;
use Illuminate\Contracts\View\Factory;
use Illuminate\Contracts\View\View;
use Illuminate\Foundation\Application;
use Illuminate\Support\Facades\DB;

class PageController extends Controller
{
    public function index(): View|Application|Factory|\Illuminate\Contracts\Foundation\Application
    {
        $admissions = Admission::all()->sortBy('position');
        return view('menu.reception-screen', compact('admissions'));
    }

    public function directions()
    {
//        $directions = DB::table('faculties')
//            ->join('departments', 'faculties.id', '=', 'departments.faculty_id')
//            ->join('directions', 'departments.id', '=', 'directions.department_id')
//            ->select('faculties.name as faculties.name', 'directions.name', 'directions.id')
//            ->groupBy('faculties.name')
//            ->get();
        $faculties = Faculty::all();
        $subjects = Subject::pluck('name', 'id');
//        $infBez = $faculties->find(FacultyEnum::InfBez->value);
//        $query = `select faculties.name, directions.name, directions.id
//FROM faculties
//join departments on faculties.id = departments.faculty_id
//join directions on departments.id = directions.department_id`;
//        $directions = DB::($query);
//        foreach ($faculties as $faculty) {
//            foreach ($faculty->departments as $department) {
//                foreach ($department->directions as $direction) {
//
//                }
//            }
//
//        }
        return view('new-design.bakalavr-special', compact('faculties', 'subjects'));
    }


    public function calculator($request)
    {
        return response()->json($request);
    }
}