Example filters and actions for Woo Bookings Calendar Pro:

* Tell the plugin to use bootstrap tooltip:
add_filter('wbc_use_bootstrap_tooltip', '__return_true');

* Tell the plugin to use bootstrap modal:
add_filter('wbc_use_bootstrap_modal', '__return_true');

* Change generated HTML shortcode for Calendar:
add_filter('wbc_shortcode_html', function($html){
    $html .= '<div id="myDiv"></div>';
    return $html;
});

* Change or add new information in description tooltip:
add_filter('wbc_tooltip_description', function($html, $post){
    // append the product thumbnail to tooltip
    $product = wc_get_product($post);
    $image_id  = $product->get_image_id();
    $image_url = wp_get_attachment_image_url( $image_id, 'thumbnail' );
    $html = sprintf('<img src="%s"></img>', $image_url) . '<br/>' . $html;

	// append the vendor name to tooltip (Dokan marketplace)
	$vendor_id = get_post_field( 'post_author', $post->ID );
    $store_info = dokan_get_store_info( $vendor_id ); // Get the store data
    $store_name = $store_info['store_name'];          // Get the store name
	$html .= "<br/> Vendor: {$store_name}";
	
    return $html;
}, 10, 2);