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// =========================================================================
// DISABLE COD PAYMENT METHOD FOR SPECIFIC COUNTRY - DE
// =========================================================================
add_filter( 'woocommerce_available_payment_gateways', 'payment_gateway_disable_country_de' );
  
function payment_gateway_disable_country_de( $available_gateways ) {
    if ( is_admin() ) return;
    if ( isset( $available_gateways['authorize'] ) && WC()->customer->get_billing_country() <> 'DE' ) {
        unset( $available_gateways['authorize'] );
    } else {
        if ( isset( $available_gateways['cod'] ) && WC()->customer->get_billing_country() == 'DE' ) {
            unset( $available_gateways['cod'] );
        }
    }
    return $available_gateways;
}

// =========================================================================
// ADD FEE TO SPECIFIC PAYMENT GATEWAY => COD - ONLY FOR PHYSICAL PRODUCT
// =========================================================================
// Part 1: assign fee
 
add_action( 'woocommerce_cart_calculate_fees', 'add_checkout_fee_for_gateway' );
 
function add_checkout_fee_for_gateway() {
    
     
    foreach( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
        // Check if there are non-virtual products
        if ( ! $cart_item['data']->is_virtual() ) {
            $chosen_gateway = WC()->session->chosen_payment_method;
  
              if ( $chosen_gateway == 'cod' ) {

              // Note: edit "Fee" and "5" below to control Label and Fee Amount
              WC()->cart->add_fee( __('Utánvét díja', 'woocommerce'), 510 );

              }
        }
    }
 
}
 
// Part 2: reload checkout on payment gateway change
 
add_action( 'woocommerce_review_order_before_payment', 'refresh_checkout_on_payment_methods_change' );
 
function refresh_checkout_on_payment_methods_change(){
    ?>
    <script type="text/javascript">
        (function($){
            $( 'form.checkout' ).on( 'change', 'input[name^="payment_method"]', function() {
                $('body').trigger('update_checkout');
            });
        })(jQuery);
    </script>
    <?php
}

// =========================================================================
// ADD CUSTOM MESSAGE IF SPECIFIC PRODUCT CATEGORY OUT OF STOCK
// =========================================================================
add_filter( 'woocommerce_get_availability', 'woo_custom_get_availability', 1, 2);
function woo_custom_get_availability( $availability, $_product ) {
    
    global $product;
    //CATEGORY 1
    if ( has_term( 'CATEGORY_NAME_1', 'product_cat', $product->get_id() ) ) {
        // Change In Stock Text
        if ( $_product->is_in_stock() ) {
            $availability['availability'] = __('Available!', 'woocommerce');
        }
        // Change Out of Stock Text
        if ( ! $_product->is_in_stock() ) {
            $availability['availability'] = __('Jelenleg nincs kitűzve tréning időpont', 'woocommerce');
        }
        return $availability;
    }
    //CATEGORY 2
    else if ( has_term( 'CATEGORY_NAME_2', 'product_cat', $product->get_id() ) ) {
        // Change In Stock Text
        if ( $_product->is_in_stock() ) {
            $availability['availability'] = __('Available!', 'woocommerce');
        }
        // Change Out of Stock Text
        if ( ! $_product->is_in_stock() ) {
            $availability['availability'] = __('Jelenleg nincs kitűzve tréning időpont', 'woocommerce');
        }
        return $availability;
    }
    else{
        // Change In Stock Text
        if ( $_product->is_in_stock() ) {
            $availability['availability'] = __('Készleten', 'woocommerce');
        }
        // Change Out of Stock Text
        if ( ! $_product->is_in_stock() ) {
            $availability['availability'] = __('Elfogyott', 'woocommerce');
        }
        return $availability;
    }
}

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