using System;
using System.Globalization;
using System.Linq;
using Avalonia.Data.Converters;

namespace DispenserUI.ViewModels.Converter;

public class StringToDoubleArrayConverter : IValueConverter
{
    public object? Convert(object? value, Type targetType, object parameter, CultureInfo culture)
    {
        // 从double[] 转换到 string
        if (value is double[] doubleArray) return doubleArray;

        return null;
    }

    public object? ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
    {
        // 从string转换到 double[]
        if (value is string str)
            try
            {
                str = str.Replace(" ", ",").Replace("，", ",");
                var doubleArray = str.Split(',')
                    .Where(s => s.Length > 0)
                    .Select(s => double.Parse(s, culture))
                    .ToArray();
                return doubleArray;
            }
            catch (Exception e)
            {
                Console.WriteLine(e.StackTrace);
                // 处理转换异常
                return Array.Empty<double>();
            }

        return null;
    }
}