Wordpress add_filter use variable - wordpress

Question

I'm using Awesome Support and I want to add a filter to manually assign the agent to answer the tickets.
This is the funcition:
function wpas_find_agent( $ticket_id = false ) {
if ( defined( 'WPAS_DISABLE_AUTO_ASSIGN' ) && true === WPAS_DISABLE_AUTO_ASSIGN ) {
return apply_filters( 'wpas_find_available_agent', wpas_get_option( 'assignee_default' ), $ticket_id );
}
$users = shuffle_assoc( wpas_get_users( apply_filters( 'wpas_find_agent_get_users_args', array( 'cap' => 'edit_ticket' ) ) ) );
$agent = array();
foreach ( $users->members as $user ) {
$wpas_agent = new WPAS_Member_Agent( $user );
/**
* Make sure the user really is an agent and that he can currently be assigned
*/
if ( true !== $wpas_agent->is_agent() || false === $wpas_agent->can_be_assigned() ) {
continue;
}
$count = $wpas_agent->open_tickets(); // Total number of open tickets for this agent
if ( empty( $agent ) ) {
$agent = array(
'tickets' => $count,
'user_id' => $user->ID,
);
} else {
if ( $count < $agent['tickets'] ) {
$agent = array(
'tickets' => $count,
'user_id' => $user->ID,
);
}
}
}
if ( is_array( $agent ) && isset( $agent['user_id'] ) ) {
$agent_id = $agent['user_id'];
} else {
$default_id = wpas_get_option( 'assignee_default', 1 );
if ( empty( $default_id ) ) {
$default_id = 1;
}
$agent_id = $default_id;
}
return apply_filters( 'wpas_find_available_agent', (int) $agent_id, $ticket_id );
}
And this is the filter I want to add:
add_filter('wpas_find_available_agent', 'asignar_agente', 10, 2);
function asignar_agente($agent_id){
$term_list = wp_get_post_terms( $ticket_id, 'department', array( 'fields' => 'ids' ) );
if($term_list[0] == 34){
$agent_id = 2;
}else{
$agent_id = 3;
}
return $agent_id;
}
How can I pass the $ticket_id variable to the filter to use it?
I need this variable because I need to know the term (department taxonomy) of the ticket is being submitted.
Thank you.

Answer 1

Since you pass $ticket_id when you call apply_filters('wpas_find_available_agent'....); you will be able to get the $ticket_id if you change your filter function to.
function asignar_agente($agent_id, $ticket_id){ <--- just add this parameter here
...
}
this is possible since you pass the parameter in apply_filters and you say add_filter('wpas_find_available_agent', 'asignar_agente', 10, 2); with emphasis on the last parameter with the value 2, that means your filter function will be able to receive 2 parameters.