Ursa.Avalonia/src/Ursa.Themes.Semi/Converters/FormContentHeightToMarginConverter.cs

using System.Globalization;
using Avalonia;
using Avalonia.Data.Converters;

namespace Ursa.Themes.Semi.Converters;

public class FormContentHeightToMarginConverter: IValueConverter
{
    public static FormContentHeightToMarginConverter Instance = new();
    public double Threshold { get; set; }

    public FormContentHeightToMarginConverter()
    {
        Threshold = 32;
    }
    
    // ReSharper disable once ConvertToPrimaryConstructor
    // Justification: need to keep the default constructor for XAML
    public FormContentHeightToMarginConverter(double threshold)
    {
        Threshold = threshold;
    }
    
    public object? Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
    {
        if(value is not double d) return new Thickness(0);
        return d > Threshold ? new Thickness(0, 8, 8, 0) : new Thickness(0, 0, 8, 0);
    }

    public object? ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
    {
        throw new NotImplementedException();
    }
}