// Copyright (c) Tribufu. All Rights Reserved.
// SPDX-License-Identifier: MIT

using System;
using System.ComponentModel;
using System.Globalization;
using System.Runtime.Serialization;

namespace Tribufu.ComponentModel
{
    public class EnumMemberConverter<T> : EnumConverter
    {
        public EnumMemberConverter(Type type) : base(type) { }

        public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
        {
            var type = typeof(T);

            foreach (var field in type.GetFields())
            {
                if (Attribute.GetCustomAttribute(field, typeof(EnumMemberAttribute)) is EnumMemberAttribute attribute && value is string enumValue && attribute.Value == enumValue)
                {
                    return field.GetValue(null);
                }
            }

            return base.ConvertFrom(context, culture, value);
        }
    }
}