using System;
using System.Globalization;
using System.Windows.Data;
using MahApps.Metro.IconPacks;

namespace TeamAAS
{
    /// <summary>
    /// 图标 Kind 名（如 "Camera" / "Cog"）→ <see cref="PackIconMaterialKind"/>，供 PackIconMaterial.Kind 绑定用。
    /// 为空或无法识别（含遗留的 SVG 路径串）时回退 CircleOutline，保证不崩、不空白。
    /// </summary>
    public sealed class IconKindConverter : IValueConverter
    {
        /// <summary>把 Kind 名解析为枚举；为空/无法识别（含遗留 SVG 路径）回退 CircleOutline。供 code-behind 复用。</summary>
        public static PackIconMaterialKind ToKind(string name)
        {
            if (!string.IsNullOrWhiteSpace(name) &&
                Enum.TryParse(name.Trim(), ignoreCase: true, out PackIconMaterialKind kind))
                return kind;
            return PackIconMaterialKind.CircleOutline;
        }

        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
            => ToKind(value as string);

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
            => throw new NotSupportedException();
    }
}