// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.

using System;
using System.Diagnostics;
using System.Globalization;
using System.Windows;
using System.Windows.Data;

namespace NuGet.PackageManagement.UI
{
    public class DownloadCountToVisibilityConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (targetType == typeof(Visibility))
            {
                var downloadCount = value as int?;
                if (downloadCount >= 0)
                {
                    return Visibility.Visible;
                }

                return Visibility.Collapsed;
            }

            return value;
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            // no op
            Debug.Fail("Not Implemented");
            return null;
        }
    }
}
