CourseWork/app/Http/Controllers/LessonController.php

<?php

namespace App\Http\Controllers;

use App\Enums\ScoreEnum;
use App\Enums\TypeLesson;
use App\Http\Requests\LessonPostRequest;
use App\Models\Grade;
use App\Models\Lesson;
use Illuminate\Http\RedirectResponse;
use Illuminate\View\View;

class LessonController extends Controller
{
    public function gradeList(): View
    {
        return view('grade-lesson.grades-list', [
            'grades' => Grade::all(),
        ]);
    }

    /**
     * Display a listing of the resource.
     */
    public function index(Grade $grade): View
    {
        if(request()->user()->cannot('viewAny', $grade)) {
            abort(403);
        }

        return view('grade-lesson.index', [
            'lessons' => $grade->lessons()->filter()->get(),
            'grade' => $grade,
            'subjects' => $grade->subjects,
        ]);
    }

    /**
     * Show the form for creating a new resource.
     */
    public function create(Grade $grade): View
    {
        if(request()->user()->cannot('create', Lesson::class)) {
            abort(403);
        }

        return view('grade-lesson.create', [
            'types' => TypeLesson::cases(),
            'grade' => $grade,
        ]);
    }

    /**
     * Store a newly created resource in storage.
     */
    public function store(LessonPostRequest $request, Grade $grade): RedirectResponse
    {
        if(request()->user()->cannot('create', [Lesson::class, $grade])) {
            abort(403);
        }

        $lesson = Lesson::create($request->validated());
        $lesson
            ->students()
            ->syncWithPivotValues($lesson->grade->students->pluck('id')->all(), ['score' => ScoreEnum::WithoutScore]);

        return redirect()->route(
            'grades.lessons.show', [
                $grade,
                $lesson,
            ]
        );
    }

    /**
     * Display the specified resource.
     */
    public function show(Grade $grade, Lesson $lesson): View
    {
        if(request()->user()->cannot('view', $lesson)) {
            abort(403);
        }

        return view('grade-lesson.show', [
            'lesson' => $lesson,
            'grade' => $grade,
        ]);
    }

    /**
     * Show the form for editing the specified resource.
     */
    public function edit(Grade $grade, Lesson $lesson): View
    {
        if(request()->user()->cannot('update', $lesson)) {
            abort(403);
        }

        return view('grade-lesson.edit', [
            'lesson' => $lesson,
            'grade' => $grade,
            'types' => TypeLesson::cases(),
        ]);
    }

    /**
     * Update the specified resource in storage.
     */
    public function update(LessonPostRequest $request, Grade $grade, Lesson $lesson): RedirectResponse
    {
        if(request()->user()->cannot('update', $lesson)) {
            abort(403);
        }

        return redirect()->route(
            'grades.lessons.show',[
                $grade,
                $lesson->update($request->validated()),
            ]
        );
    }

    /**
     * Remove the specified resource from storage.
     */
    public function destroy(Grade $grade, Lesson $lesson): RedirectResponse
    {
        if(request()->user()->cannot('update', $lesson)) {
            abort(403);
        }

        $lesson->delete();

        return redirect()->route('grades.lessons.index', $grade);
    }
}