using System;
using System.Linq;
using System.Windows;
using System.Windows.Data;

namespace DTS.Common.Converters
{
    public class BooleanAndToVisibilityMultiConverter : IMultiValueConverter
    {
        public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            var useFalseAsVisible = parameter != null && parameter.ToString().ToUpper().Contains("FALSE");
            var hideNotCollapse = parameter != null && parameter.ToString().ToUpper().Contains("HIDE");

            bool value = !Array.TrueForAll(values, val => val is bool) ? false : values.All(val => (bool)val);
            if (useFalseAsVisible)
            {
                if (!value)
                    return Visibility.Visible;
                return hideNotCollapse ? Visibility.Hidden : Visibility.Collapsed;
            }
            if (!value)
                return hideNotCollapse ? Visibility.Hidden : Visibility.Collapsed;
            return Visibility.Visible;
        }

        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, System.Globalization.CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }
}