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

namespace TeamAAS.Converters
{
    /// <summary>
    /// 步骤索引 → 可见性：当绑定值（当前 StepIndex）等于 ConverterParameter 指定的步骤号时返回 Visible，否则 Collapsed。
    /// 用于标定向导按 StepIndex 切换分步面板。
    /// </summary>
    public class StepToVisibilityConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            bool equal = string.Equals(value?.ToString(), parameter?.ToString(), StringComparison.OrdinalIgnoreCase);
            return equal ? Visibility.Visible : Visibility.Collapsed;
        }

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