Woo Discount Rules: Round discount value for both Price and Cart Rules

// Round discount value for both Price and Cart Rules (Ex: 9.99 round down to 9.95 and 9.94 round down to 9.90)
if (!function_exists('advanced_woo_discount_rules_round_discount_price')) {
    function advanced_woo_discount_rules_round_discount_price($price) {
        $rounded_price = wc_round_discount($price, 1);
        $diff = wc_round_discount($price - $rounded_price, 2);
        if ($diff == 0.05) {
            return $rounded_price + 0.05;
        } else if ($diff >= 0) {
            return $rounded_price;
        } else {
            return $rounded_price - 0.05;
        }
    }
}
add_filter('advanced_woo_discount_rules_discount_prices_of_product', function ($discount_prices, $product, $quantity, $cart_item) {
    //FOR CHANGING DISCOUNTED_PRICE you can change it in $discount_prices['discounted_price']
    if (isset($discount_prices['discounted_price'])) {
        $discount_prices['discounted_price'] = advanced_woo_discount_rules_round_discount_price($discount_prices['discounted_price']);
    }
    if (isset($discount_prices['discounted_price_with_tax'])) {
        $discount_prices['discounted_price_with_tax'] = advanced_woo_discount_rules_round_discount_price($discount_prices['discounted_price_with_tax']);
    }
    if (isset($discount_prices['discount_lines'])) {
        foreach ($discount_prices['discount_lines'] as $key => $value) {
            if ($key !== 'non_applied') {
                $line_discount = $discount_prices['discount_lines'][$key]['discounted_price'];
                $discount_prices['discount_lines'][$key]['discounted_price'] = advanced_woo_discount_rules_round_discount_price($line_discount);
            }
        }
    }

    return $discount_prices;
}, 10, 4);

add_filter('advanced_woo_discount_rules_discounts_of_each_rule', function ($discounts, $rule, $product_price) {
    if (!empty($discounts) && is_array($discounts)) {
        $discounts = array_map(
            function ($v) {
                return advanced_woo_discount_rules_round_discount_price($v);
            }, $discounts);
    }
    return $discounts;
}, 10, 3);

add_filter('advanced_woo_discount_rules_coupon_value', function ($discount_value, $label, $cart_item_keys) {
    return advanced_woo_discount_rules_round_discount_price($discount_value);
}, 10, 3);