Allow BGN for WooCommerce and PayPal

wc_paypal.php

// allow BGN for WooCommerce and PayPal
add_filter( 'woocommerce_paypal_supported_currencies', 'add_bgn_paypal_valid_currency' );
    function add_bgn_paypal_valid_currency( $currencies ) {
     array_push ( $currencies , 'BGN' );
     return $currencies;
    }
 
 
// Convert BGN to EUR for PayPal payments
add_filter('woocommerce_paypal_args', 'convert_bgn_to_eur');
function convert_bgn_to_eur($paypal_args){
    if ( $paypal_args['currency_code'] == 'BGN'){
        $convert_rate = 1.955; //set the converting rate
        $paypal_args['currency_code'] = 'EUR'; //change BGN to EUR
        $i = 1;
 
        while (isset($paypal_args['amount_' . $i])) {
            $paypal_args['amount_' . $i] = round( $paypal_args['amount_' . $i] / $convert_rate, 2);
            ++$i;
        }
 
        if ( $paypal_args['shipping_1'] > 0 ) {
                $paypal_args['shipping_1'] = round( $paypal_args['shipping_1'] / $convert_rate, 2);
                }
 
        if ( $paypal_args['discount_amount_cart'] > 0 ) {
                $paypal_args['discount_amount_cart'] = round( $paypal_args['discount_amount_cart'] / $convert_rate, 2);
                }
                }
 
                return $paypal_args;
}
 
//this runs when a new note is added to the order
add_filter( 'woocommerce_new_order_note_data', 'pbte_fix_order_status', 10, 2 );
 
//if the note says that the PayPal currencies or amounts do not match, then we will change the status to processing
function pbte_fix_order_status($a_note, $a_order)
{
    //the check is done in two languages
    if ( strpos($a_note['comment_content'],'PayPal валутите не съвпадат') !== false
    || strpos($a_note['comment_content'],'PayPal currencies do not match') !== false
    || strpos($a_note['comment_content'],'PayPal наличността не отговаря') !== false
    || strpos($a_note['comment_content'],'PayPal amounts do not match') !== false )
    {
        //we create the order var
        $order = new WC_Order($a_order['order_id']);
        //if the current status is on-hold - we change it to processing and add an optional note
        if($order->status == 'on-hold')
            $order->update_status('processing', 'The PayPal BGN support plugin did this note.');
    }
 
    return $a_note;
}