Shortcode for direct Service booking

Not sure if this is where this would go, but, I put together a quick shortcode to output direct booking links for all service providers.

Supply the shortcode with a service id# (Found in settings -> services tab) like:

[book_now service_id="1"]

And it will output direct links for the available (and unavailable) service providers for that service like:

<a class="button blue" href="{direct booking url}">Book at {service provider}?</a>

You’d probably want to change some of the wording, but I hope someone else finds this useful:

add_shortcode( 'book_now', 'sc_book_now' );
function sc_book_now( $atts, $content ) {
global $post, $appointments;

extract(shortcode_atts(array(
'service_id' => false
), $atts));

//TODO: Change this to your Online Booking Page
$base_path = get_permalink(58);

//Direct path to this service on the Booking Page
$path = $base_path . '?app_service_id=' . $service_id;

// Get all workers, and workers who can provide this service only
$valid_workers = $appointments->get_workers_by_service($service_id);
$workers = $appointments->get_workers();

if ( $service_id && $workers) {
if ( !$provider_id ) {
$html = '';
foreach ( $workers as $worker ) {
if ( in_array( $worker, $valid_workers) ) {
// TODO: Change this to suit your needs!
// Worker is able to provide this service
$html .= '<a class="button blue" href="'.$path.'&app_provider_id='.$worker->ID.'">';
$html .= 'Book at ' . $appointments->get_worker_name( $worker->ID ) . '?';
$html .= '</a>';
} else {
// TODO: Change this to suit your needs!
// Worker cannot provide this service
$html .= '<span class="button">';
$html .= 'Book at ' . $appointments->get_worker_name( $worker->ID ) . '?';
$html .= '</span>';
}
}
if (!empty($html)) return $html;
}
}
// TODO: Change this to suit your needs!
// Couldn't find a proper link for this service (perhaps it doesn't exist?), default
return '<a class="button blue" href="'.$base_path.'"> Book Online ? </a>';
}