using System;
using System.Windows.Data;

namespace MECF.Framework.UI.Client.Ctrlib.Converter
{
    public class Bit2Bool : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if (!(value is int))
            {
                return false;
            }

            int tempValue = (int)value;
            return tempValue == 1;
        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if (!(value is bool))
            {
                return 0;
            }

            bool tempValue = (bool)value;
            return tempValue == true ? 1 : 0;
        }
    }

    public class Null2Bool : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            return value == null;
        }

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

    public class String2Double : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if (value == null)
                return 0.0;

            double tempValue = 0.0;
            double.TryParse(value.ToString(), out tempValue);

            return tempValue;
        }

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

    public class Float2String : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if (value == null)
                return string.Empty;

            if (double.IsNaN((double)value))
                return string.Empty;
            else
                return value;
        }

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