cssd-back/app/Policies/TransferPolicy.php

<?php

namespace App\Policies;

use App\Package;
use App\Transfer;
use App\User;
use App\Item;

class TransferPolicy
{
    public function changeStatus( User $User , Transfer $transfer )
    {
        if ( $User->hasRole( 'Admin|Supervisor' ) || $transfer->user_id == $User->id )
            return true;
    }

    public function transferItem( User $User , Item $Item )
    {
        if ( $User->hasRole( 'Admin' ) ) {
            return true;
        } else {
            if ( $User->hasRole( 'Supervisor' ) ) {
                if ( $Item->user->medical_center_id == $User->medical_center_id &&  $Item->package_id == null ) {
                    return true;
                }
            } else {
                if ( $Item->user_id == $User->id && $Item->package_id == null ) {
                    return true;
                }
            }
        }
    }

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

}