Relatório de vendas por ano e estado brasilero para WooCommerce

vendasporanoeestado.php

/**
 * @snippet       	Relatorio de vendas por ano e estado brasileiro @ WooCommerce Admin
 * @sourcecode    	https://gist.github.com/emanweb/3272d93d481e8c749edaa2cce2641b28
 * @author        	Emanuel Costa
 * @testedwith    	WooCommerce 6.3.1
 * @inspiredby		https://businessbloomer.com/?p=72853 (Rodolfo Melogli)
 * @instructions    	Inclua esse código no functions.php to seu tema filho (child theme)
 */
  
// -----------------------
// 1. Create extra tab under Reports / Orders (Esse relatório aparece na opção Menu > Relatorios > Vendas por Estado
  
add_filter( 'woocommerce_admin_reports', 'htw_admin_add_report_orders_tab' );
  
function htw_admin_add_report_orders_tab( $reports ) { 
  
$array = array(
    'sales_by_state' => array(
        'title' => 'Vendas por Estado',
        'description' => '',
        'hide_title' => 1,
        'callback' => 'htw_yearly_sales_by_state'
    )
);
  
$reports['orders']['reports'] = array_merge($reports['orders']['reports'],$array);
  
return $reports; 
}
  
// -----------------------
// 2. Calculate sales by state
function htw_yearly_sales_by_state() {
 
    $year = 2021; // change this if needed
 
    $args = [
        'post_type' => 'shop_order',
        'posts_per_page' => '-1',
        'year' => $year,
        'post_status' => ['wc-completed']
    ];
    $my_query = new WP_Query($args);
    $orders = $my_query->posts;
 
    $brArr = array();
    //$salesArr = array();
     
    $brTotal = 0;

    foreach ($orders as $order => $value) 
    {
        $order_id = $value->ID;
        $order = wc_get_order($order_id);
        $order_data = $order->get_data();
         
        if ( $order_data['billing']['country'] === 'BR' ) {
            $myTotal = $order->get_total();
            $brTotal += $myTotal;
            $brArr[$order_data['billing']['state']] += $myTotal;
        }
         
    }
 
    arsort($brArr);
     
    echo "<h2>Vendas por estado para ano de " . $year . " no Brasil:</h2>";
    foreach($brArr as $brState => $brSalesValue)       
    {
        echo $brState . ": " . wc_price($brSalesValue) . "<br/>";
         
    }
    echo "<h3>Total de Vendas: " . $brTotal."</h3>"; 
    echo "";       
	
    echo "<h2>Vendas percentual por estado para ano de " . $year . " no Brasil:</h2>";
    foreach($brArr as $brState => $brSalesValue)       
    {
        echo $brState . ": " . round(($brSalesValue/$brTotal)*100,2) . "%<br/>";
         
    }

    echo "";   	

}