<?php

class Wiaas_Admin_Orders {

    public static function init() {

        add_filter( 'manage_edit-shop_order_columns', array(__CLASS__, 'add_additional_columns_to_orders_screen') );

        add_action( 'manage_shop_order_posts_custom_column', array(__CLASS__, 'add_custom_columns_content') );
    }

    public static function add_additional_columns_to_orders_screen( $columns ){

        $new_columns = array();

        $new_columns['reference'] = 'Location';
        $new_columns['commercial_lead'] = 'Commercial lead';
        $new_columns['customer'] = 'Customer';

        $insertAfterColumn = 1;

        return array_merge(array_slice($columns,0,$insertAfterColumn+1), $new_columns, array_slice($columns,$insertAfterColumn+1));

    }

    public static function add_custom_columns_content( $column ){

        global $post;
        $column_content = '';

        switch ($column){
            case 'reference':
                $column_content = Wiaas_Order::get_order_reference($post->ID);
                break;

            case 'commercial_lead':
                $column_content = Wiaas_Order::get_order_commercial_lead_name($post->ID);
                break;

            case 'customer':
                $column_content = Wiaas_Order::get_order_customer_full_name($post->ID);
                break;
        }

        echo $column_content;
    }


}

Wiaas_Admin_Orders::init();