Bug in hook+api ?

[LosBooom]

Hello.

Can someone explain why this is happening?

I have this code in includes/hooks:

<?php

if (!defined("WHMCS")) {
    die("This file cannot be accessed directly");
}

add_hook('TicketOpen', 1, function($vars){
	$ticketid = 111115; // use this ticket for testing
    
    $result = localAPI('AddTicketReply', [
        'ticketid' => $ticketid,
        'message' => 'Text message',
        'adminusername' => 'Robot admin',
        ]);
});

?>

My idea is this: the user opens a ticket, a hook is triggered, a message from Robot Admin is sent to the test ticket.

The problem is that if the user attaches files to the ticket, the robot will repeat it in my test ticket.

Edited October 18, 2019 by LosBooom