Code-Snippets-Functions/Execute a function on a child site/WooCommerce/set-credit-limit-for-customers.txt

function payment_gateway_disable_on_account( $available_gateways ) {
    // Check that it's on checkout page and that the WC_Cart object is not null
    if ( is_checkout() && isset(WC()->cart) && WC()->cart ) {

        $credit_limit = get_user_meta( get_current_user_id(), 'credit_limit', true );

        $amount = floatval( preg_replace( '#[^\d.]#', '', WC()->cart->subtotal ) );

        if ( empty( $credit_limit ) ) {
            $credit_limit = 500;
        }
    
        $credit_remaining = $credit_limit - $amount;
        
        if ( isset($available_gateways['cod']) && ( !wc_current_user_has_role('credit_account') || $credit_remaining < 0 ) ) {
            unset($available_gateways['cod']);
        }
    }
    return $available_gateways;
}

add_filter( 'woocommerce_available_payment_gateways', 'payment_gateway_disable_on_account' );