Script to add manual order to Woocommerce - php

Question

I am trying to add manual orders to woocommerce. Webshop is where I have stock values. I have store also. When customer buy in store, I have to add an order. When I want to add it via Orders->Add order it do not work properly, as I need to add tax value manual (Automattic, why?).
I'd like to have hidden page, to add orders.
I've seen Programmatically creating new order in Woocommerce
Here is what I tried:
I got order.php file in main folder:
<?php
/*
* Create order dynamically
*/
require(dirname(__FILE__) . '/wp-load.php');
echo 'ok?';
function create_vip_order() {
global $woocommerce;
$address = array(
'first_name' => 'John',
'last_name' => 'Doe',
'email' => 'test#gmail.com',
'phone' => '123456789',
'address_1' => '123 Main st.',
'city' => 'San Diego',
'state' => 'Ca',
'postcode' => '92121',
);
// Now we create the order
$order = wc_create_order();
// The add_product() function below is located in /plugins/woocommerce/includes/abstracts/abstract_wc_order.php
$order->add_product( get_product( '376' ), 1 ); // This is an existing SIMPLE product
$order->set_address( $address, 'billing' );
//
$order->calculate_totals();
$order->update_status("Completed", 'Imported order', TRUE);
}
add_action( 'init', 'create_vip_order' );

Answer 1

Finally code that I need is:
<?php
/*
* Create order manual
*/
require(dirname(__FILE__) . '/wp-load.php');
function create_new_order() {
global $woocommerce;
$address = array(
'first_name' => 'Zakup',
'last_name' => 'Sklepowy',
'email' => 'test#test.pl',
'phone' => '123',
'address_1' => 'ul. Przykladowa 1',
'address_2' => 'm. 2',
'city' => 'Wroclaw',
'postcode' => '50-123',
);
$order = wc_create_order();
$product = new WC_Product(wc_get_product_id_by_sku('*sku_here*'));
$order->add_product( $product, 1 );
$order->set_address( $address, 'billing' );
// Set payment gateway
$payment_gateways = WC()->payment_gateways->payment_gateways();
$order->set_payment_method( $payment_gateways['cod'] );
// Calculate totals
$order->calculate_totals();
$order->update_status('completed', 'In Store ', TRUE);
}
create_new_order();
?>