Change Status from Processing to Complete over WooCommerce

functions.php

/**
 * Auto Complete all WooCommerce orders.
 */
add_filter( 'woocommerce_payment_complete_order_status', 'cg_update_order_status', 10, 2 );
 
function cg_update_order_status( $order_status, $order_id ) {
 
 $order = new WC_Order( $order_id );
 
 if ( 'processing' == $order_status && ( 'on-hold' == $order->status || 'pending' == $order->status || 'failed' == $order->status ) ) {
 
 return 'completed';
 
 }
 
 return $order_status;
}

/**
 * Auto Complete all WooCommerce orders who are Virtual
 */
add_action('woocommerce_order_status_changed', 'ts_auto_complete_virtual');

function ts_auto_complete_virtual($order_id)
{

if ( ! $order_id ) {
return;
}

global $product;
$order = wc_get_order( $order_id );

if ($order->data['status'] == 'processing') {

$virtual_order = null;

if ( count( $order->get_items() ) > 0 ) {

foreach( $order->get_items() as $item ) {

if ( 'line_item' == $item['type'] ) {

$_product = $order->get_product_from_item( $item );

if ( ! $_product->is_virtual() ) {
// once we find one non-virtual product, break out of the loop
$virtual_order = false;
break;
}
else {
$virtual_order = true;
}
}
}
}

// if all are virtual products, mark as completed
if ( $virtual_order ) {
$order->update_status( 'completed' );
}
}
}
/**
 * Auto Complete all WooCommerce orders with a loop into orders page
 */
function auto_update_orders_status_from_processing_to_completed(){
    // Get all current "processing" customer orders
    $processing_orders = wc_get_orders( $args = array(
        'limit' => -1,
        'post_status' => 'wc-processing',
    ) );
    if(!empty($processing_orders))
        foreach($processing_orders as $order)
            $order->update_status( 'completed' );
}
add_action( 'init', 'auto_update_orders_status_from_processing_to_completed' );
/**
 * Auto Complete all WooCommerce orders based on Payment Method
 */
add_action('woocommerce_order_status_changed', 'ts_auto_complete_by_payment_method');

function ts_auto_complete_by_payment_method($order_id)
{

if ( ! $order_id ) {
return;
}

global $product;
$order = wc_get_order( $order_id );

if ($order->data['status'] == 'processing') {
$payment_method=$order->get_payment_method();
if ($payment_method!="cod")
{
$order->update_status( 'completed' );
}

}

}
/**
 * Auto Complete all WooCommerce orders where total spend is more than 50
 */
add_action( 'woocommerce_order_status_processing', 'auto_complete_processing_orders_based_on_total', 20, 4 );
function auto_complete_processing_orders_based_on_total( $order_id, $order ){
    // HERE define the max total order amount
    $max_total_limit = 50;

    if ( $order->get_total() < $max_total_limit ) {
        $order->update_status( 'completed' );
    }
}
/**
 * Auto Complete all WooCommerce orders where total spend is more than 50 if status is always process ( no autocomplete )
 */
     add_action( 'woocommerce_thankyou', 'thankyou_auto_complete_processing_orders_based_on_total', 90, 1 );
function thankyou_auto_complete_processing_orders_based_on_total( $order_id ){
    if( ! $order = wc_get_order( $order_id ) ){
        return;
    }

    // HERE define the max total order amount
    $max_total_limit = 50;

    if( $order->has_status('processing') && $order->get_total() < $max_total_limit ){
        $order->update_status( 'completed' );
    }
}
/**
 * Auto Complete all WooCommerce orders.
 */

add_action( 'woocommerce_thankyou', 'custom_woocommerce_auto_complete_order');
function custom_woocommerce_auto_complete_order( $order_id ) {
    if ( ! $order_id ) {
        return;
    }

    $order = wc_get_order( $order_id );
    $order->update_status( 'completed' );
    ?>
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    <?php

}