DiunaBI/DiunaBI.UI.Shared/Services/NumberFormatHelper.cs

using System.Globalization;

namespace DiunaBI.UI.Shared.Services;

public class NumberFormatHelper
{
    private readonly CultureInfo _culture;

    public NumberFormatHelper()
    {
        // Always use Polish culture for number formatting
        _culture = CultureInfo.GetCultureInfo("pl-PL");
    }

    public string FormatNumber(double? value, int decimals = 2)
    {
        if (!value.HasValue)
            return string.Empty;

        return value.Value.ToString($"N{decimals}", _culture);
    }

    public string FormatNumber(double value, int decimals = 2)
    {
        return value.ToString($"N{decimals}", _culture);
    }

    public string FormatInteger(double? value)
    {
        if (!value.HasValue)
            return string.Empty;

        return value.Value.ToString("N0", _culture);
    }

    public string FormatInteger(double value)
    {
        return value.ToString("N0", _culture);
    }

    public string GetCultureName()
    {
        return _culture.DisplayName;
    }

    public CultureInfo GetCulture()
    {
        return _culture;
    }
}