// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

using System.ComponentModel;
using System.Xaml;
using System.Windows.Markup;

namespace MS.Internal.Serialization
{
    /// <summary>
    /// The TypeConverter value serializer uses a TypeConverter to implement the translation
    /// to and from a string. The caller of the constructor must ensure the TypeConverter supports
    /// converstion to and from string.
    /// </summary>
    internal sealed class TypeConverterValueSerializer : ValueSerializer
    {
        private TypeConverter converter;

        public TypeConverterValueSerializer(TypeConverter converter)
        {
            this.converter = converter;
        }

        public override bool CanConvertToString(object? value, IValueSerializerContext? context)
        {
            return converter.CanConvertTo(context, typeof(string));
        }

        public override string? ConvertToString(object? value, IValueSerializerContext? context)
        {
            return converter.ConvertToString(context, TypeConverterHelper.InvariantEnglishUS, value);
        }

        public override bool CanConvertFromString(string? value, IValueSerializerContext? context)
        {
            return true;
        }

        public override object? ConvertFromString(string value, IValueSerializerContext? context)
        {
            if (value is not null)
            {
                return converter.ConvertFrom(context, TypeConverterHelper.InvariantEnglishUS, value);
            }
            else
            {
                throw GetConvertFromException(value);
            }
        }
    }
}
