using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Media;

namespace AnQing.Commons
{
    public class IndexConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            ListViewItem item = (ListViewItem)value;
            ListView listView = ItemsControl.ItemsControlFromItemContainer(item) as ListView;
            int index = listView.ItemContainerGenerator.IndexFromContainer(item) + 1;
            return index.ToString();
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }
    public class EllipseFillConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is bool isOK)
            {
                return isOK ? Brushes.Green : Brushes.Red;
            }
            return Brushes.Gray; // 默认颜色
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }
    public class RunTextConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is bool isOK)
            {
                return isOK ? "连接成功" : "连接失败";
            }
            return "未知状态"; // 默认文本
        }

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

    public class ReadRunTextConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is bool isOK)
            {
                return isOK ? "采集中" : "空闲";
            }
            return "未知状态"; // 默认文本
        }

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

    public class StringToDateTimeConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            // 如果 StartTime 是空字符串，转换为 null
            if (value is string str && string.IsNullOrEmpty(str))
            {
                return null; // 返回 null，清空 DateTimePicker
            }
            return value; // 否则，返回原始值
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            // 将 DateTime? 转换回字符串（如果为 null 则为空字符串）
            return value == null ? "" : value.ToString();
        }
    }
}