if (is_plugin_active('woocommerce/woocommerce.php')) {

    //Official declaration for woocommerce support (this is required or else you may run into issues such as the reviews tab not rendering)
    add_theme_support('woocommerce');

    //Captures a new order
    add_action('woocommerce_order_status_completed', 'ln_woo_order_completed');

    //Assign a custom role to a new customer
    add_filter('woocommerce_new_customer_data', 'ln_assign_customer_role');

    //Process order refund or cancellation
    add_action('woocommerce_order_status_refunded', 'ln_woo_order_refunded');
    add_action('woocommerce_order_status_cancelled', 'ln_woo_order_refunded');

    //Check if an order has already been purchased to prevent subsequent orders
    add_filter('woocommerce_add_to_cart_validation', 'ln_woo_check_previous_purchase', 10, 2);

    //If a product has a price of zero then display the word "FREE"
    add_filter('woocommerce_get_price_html', 'ln_woo_price_free_zero_empty', 9999, 2);

    //Hide certain terms such as the default "uncategorized"
    add_filter('woocommerce_product_categories', 'ln_hide_selected_terms', 10, 2);

    //Remove certain buttons from the woocommerce navigation
    add_filter('woocommerce_account_menu_items', 'ln_unset_woo_menu_items');

    //Disable Woocommerce breadcrumb navigation
    add_action( 'init', 'pm_ln_remove_wc_breadcrumbs' );

    //Disable default wrapper on Woocommerce shop page
    remove_action('woocommerce_before_main_content', 'woocommerce_output_content_wrapper', 10);
    remove_action('woocommerce_after_main_content', 'woocommerce_output_content_wrapper_end', 10);

    //Add custom wrapper to Woocommerce shop page
    add_action('woocommerce_before_main_content', 'pm_ln_woo_wrapper_start', 10);
    add_action('woocommerce_after_main_content', 'pm_ln_woo_wrapper_end', 10);

    //Disable woocommerce sidebar from shop and single product templates
    remove_action('woocommerce_sidebar', 'woocommerce_get_sidebar', 10);
    
    //Render custom content after Woocommerce tab system on the single product page
    add_action('woocommerce_product_after_tabs', 'ln_custom_content_after_woocommerce_tabs', 9999, 2);
}

function ln_woo_order_completed($order_id) {
        
    // Get an instance of the order object
    $order = wc_get_order($order_id);

    if ($order) {

        //Loop through each item purchased
        foreach ($order->get_items() as $item_id => $item) {

            //Get the product id
            $product_id = $item->get_product_id();

            //Add your code here to process custom data related to the order item
        }
    }
}

function ln_assign_customer_role($args) {
    $args['role'] = '';//Define a custom role here
    return $args;
}

function ln_woo_order_refunded($order_id) {
    $order = wc_get_order($order_id);
    if ($order) {
        //Add custom code here to process a refund
        
    }
}

function ln_woo_check_previous_purchase($passed, $product_id) {

    //Add custom code here to check if the user has previously purchased an item

    //The $passed parameter must be passed back to Woocommerce
    return $passed;
}

function ln_woo_price_free_zero_empty( $price, $product ) {
    //If the price is empty or equivalent to zero then return "FREE" for the output
    if ( '' === $product->get_price() || 0 == $product->get_price() ) {
        $price = '<span class="wooc-price-amount amount amount-free">'. esc_attr("FREE", "kindel-lms") .'</span>';
    }  
    return $price;
}

function ln_hide_selected_terms($html, $product) {
    //Don't render the "uncategorized" category on products
    if (has_term('uncategorized', 'product_cat', $product->get_id())) {
        return ''; 
    }
    return $html;
}

function ln_unset_woo_menu_items( $items ) {
    unset($items['downloads']);//Remove the Downloads menu item
    return $items;
}

function pm_ln_woo_wrapper_start() {
      echo '<div class="container">';
         echo '<div class="row">';
            echo '<div class="col-lg-12 col-md-8 col-sm-8">';    
      echo ''; 
}

function pm_ln_woo_wrapper_end() {
         echo '</div>';
       echo '</div>';
  echo '</div>';
  echo ''; 
  
}

function ln_custom_content_after_woocommerce_tabs() {
        
    //Get the Post ID of the product
    global $post;
    $post_id = $post->ID;
    
    //Add your code here to render content immediately after the Woocommerce tabs
}

function pm_ln_remove_wc_breadcrumbs() {
    remove_action( 'woocommerce_before_main_content', 'woocommerce_breadcrumb', 20, 0 );
}