WooCommerce Demo Product Publisher

<?php

function cwpai_publish_demo_product() {
    $product_name = 'Demo';
    $product_args = array(
        'name' => $product_name,
        'type' => 'simple',
        'regular_price' => '100',
        'description' => 'This is a demo product.',
        'short_description' => 'A simple demo product.',
        'status' => 'publish',
    );

    $existing_product_id = wc_get_product_id_by_sku('demo-product');
    if ( $existing_product_id ) {
        return; // Product already exists, no action needed.
    }

    $product = new WC_Product_Simple();
    foreach ($product_args as $key => $value) {
        $method = 'set_' . $key;
        if (method_exists($product, $method)) {
            $product->$method($value);
        }
    }
    $product->set_sku('demo-product'); // Ensure uniqueness.
    $product_id = $product->save();

    if ( $product_id ) {
        // Product successfully created.
    }
}

add_action('init', 'cwpai_publish_demo_product');