cssd-back/app/Policies/PackagePolicy.php

<?php

namespace App\Policies;

use App\Models\Package;
use App\Models\User;

class PackagePolicy
{
    public function showAll(User $user)
    {
        if ($user->hasRole('Admin'))
            return true;
    }

    public function delete(User $user, Package $Package)
    {
        if (
            $user->hasRole('Admin') ||
            ($user->hasRole('Supervisor') && $Package->user->medical_center_id == $user->medical_center_id) ||
            ($user->hasRole('User') && $Package->user_id == $user->id)
        )
            return true;
    }

    public function update(User $user, Package $Package)
    {
        if (
            $user->hasRole('Admin') ||
            ($user->hasRole('Supervisor') && $Package->user->medical_center_id == $user->medical_center_id) ||
            $Package->user_id == $user->id
        )
            return true;
    }

    public function changeStatus(User $user)
    {
        if ($user->hasRole('Admin|Supervisor'))
            return true;
    }

}