[order completed] Different Email contents for specific Payment method

Hello,

Thanks Woo for bringing us such a awesome plugin

I have a question. I use a payment method called, “Invoice Payment” with this plugin . I need to send custom HTML invoice after i click on “Complete” button in Orders for only that payment method.

So my question is how can i check the payment method and how can i send the email programatically? Maybe something like this:

add_action( 'woocommerce_order_status_completed', 'orderCompleted' );
function orderCompleted($order_id) {
	// order object (optional but handy)
	$order = new WC_Order( $order_id );
	$payment_method = get_post_meta( $order_id, '_payment_method_title', TRUE );

	// do some stuff here, but i have no idea know how to send the custom email and prevent the default one?? Hmm am i wrong?
}

Thanks for taking a look at my issue

Best Regards,
Darko

https://wordpress.org/plugins/woocommerce/