animethemes-server/app/Policies/Document/PagePolicy.php

<?php

declare(strict_types=1);

namespace App\Policies\Document;

use App\Enums\Auth\CrudPermission;
use App\Enums\Auth\ExtendedCrudPermission;
use App\Models\Auth\User;
use App\Models\Document\Page;
use Illuminate\Auth\Access\HandlesAuthorization;
use Laravel\Nova\Nova;

/**
 * Class PagePolicy.
 */
class PagePolicy
{
    use HandlesAuthorization;

    /**
     * Determine whether the user can view any models.
     *
     * @param  User|null  $user
     * @return bool
     */
    public function viewAny(?User $user): bool
    {
        return Nova::whenServing(
            fn (): bool => $user !== null && $user->can(CrudPermission::VIEW->format(Page::class)),
            fn (): bool => true
        );
    }

    /**
     * Determine whether the user can view the model.
     *
     * @param  User|null  $user
     * @return bool
     */
    public function view(?User $user): bool
    {
        return Nova::whenServing(
            fn (): bool => $user !== null && $user->can(CrudPermission::VIEW->format(Page::class)),
            fn (): bool => true
        );
    }

    /**
     * Determine whether the user can create models.
     *
     * @param  User  $user
     * @return bool
     */
    public function create(User $user): bool
    {
        return $user->can(CrudPermission::CREATE->format(Page::class));
    }

    /**
     * Determine whether the user can update the model.
     *
     * @param  User  $user
     * @param  Page  $page
     * @return bool
     */
    public function update(User $user, Page $page): bool
    {
        return ! $page->trashed() && $user->can(CrudPermission::UPDATE->format(Page::class));
    }

    /**
     * Determine whether the user can delete the model.
     *
     * @param  User  $user
     * @param  Page  $page
     * @return bool
     */
    public function delete(User $user, Page $page): bool
    {
        return ! $page->trashed() && $user->can(CrudPermission::DELETE->format(Page::class));
    }

    /**
     * Determine whether the user can restore the model.
     *
     * @param  User  $user
     * @param  Page  $page
     * @return bool
     */
    public function restore(User $user, Page $page): bool
    {
        return $page->trashed() && $user->can(ExtendedCrudPermission::RESTORE->format(Page::class));
    }

    /**
     * Determine whether the user can permanently delete the model.
     *
     * @param  User  $user
     * @return bool
     */
    public function forceDelete(User $user): bool
    {
        return $user->can(ExtendedCrudPermission::FORCE_DELETE->format(Page::class));
    }

    /**
     * Determine whether the user can permanently delete any model.
     *
     * @param  User  $user
     * @return bool
     */
    public function forceDeleteAny(User $user): bool
    {
        return $user->can(ExtendedCrudPermission::FORCE_DELETE->format(Page::class));
    }
}