using System;
using System.Collections;
using System.Globalization;
using System.Windows;
using System.Windows.Data;

namespace HMI.UI.Converter
{
    public class CollectionHasItem : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is IList collection)
            {
                return collection != null && collection.Count > 0;
            }
            return false;
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            return null;
        }
    }

    public class CollectionVisibility : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is int count)
            {
                return count > 0 ? Visibility.Visible : Visibility.Collapsed;
            }
            if (value is IList collection)
            {
                var flag = collection != null && collection.Count > 0;
                return flag ? Visibility.Visible : Visibility.Collapsed;
            }
            return Visibility.Collapsed;
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            return null;
        }
    }
}