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

namespace AutoCat.Extensions;

public class DateConverter: IValueConverter
{
    private static readonly DateTime Epoch = new(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
    
    public object? Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
    {
        if (value is not double timestamp)
            return null;

        if (timestamp == 0)
            return null;
        
        var dateTime = Epoch.AddMilliseconds(timestamp).ToLocalTime();
        return dateTime.ToString("g");
    }

    [SuppressMessage("ReSharper", "ReturnTypeCanBeNotNullable")]
    public object? ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
    {
        throw new NotImplementedException();
    }
}