How to add change product price based on category and GEO IP country?

Watson

I need to add a BEBAT tax when we sell batteries. I'm now trying to figure out how I can tackle this. This code is working fine but for a certain part

function add_tax_bebat() {
    $getIp      = $_SERVER['REMOTE_ADDR'];
    $ipDetails  = json_decode( @file_get_contents( "http://ipinfo.io/{$getIp}/json" ) );
    $country    = $ipDetails->country;

    if ( $country =="BE" ){
        function return_custom_price($price, $products) {
            $args = array(
                'category'  => array( 'batteries' ),
            );
            $products = wc_get_products( $args );
            $price = ($price+0.99);

            return $price;
        }
        add_filter('woocommerce_get_price', 'return_custom_price', 10, 2);
    }
}
add_action ( 'init', 'add_tax_bebat' );

This shows on all products even if they are not in the category.

anderson

Geo IP feature is already in woocommerce that can be used through WC_Geolocation Class.
For targetting the product category you can use WordPress has_term() function on WooCommerce Product Category custom taxonomy like this (this code will go in functions.php file of your active child theme)

function is_geo_country_belgium() {
    // Get an instance of the WC_Geolocation object class
    $geolocation_instance = new WC_Geolocation();
    // Get user IP
    $user_ip_address = $geolocation_instance->get_ip_address();
    // Get geolocated user IP country code.
    $user_geolocation = $geolocation_instance->geolocate_ip( $user_ip_address );

    return $user_geolocation['country'] === 'BE' ? true : false;
}

add_filter( 'woocommerce_get_price', 'change_specific_products_price', 10, 2 );
function change_specific_products_price( $price, $product ) {
    $category = 'batteries';

    if ( has_term( $category, 'product_cat', $product->get_id() ) && is_geo_country_belgium() ) {
        $price += 0.99;
    }
    return $price;
}