// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Text.Json;
using System.Text.Json.Serialization;
 
namespace Microsoft.AspNetCore.Components.Platform;
 
internal sealed class WebIdlEnumJsonConverter<T> : JsonConverter<T> where T : struct, IWebIdlEnum<T>
{
    public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
    {
        if (reader.TokenType != JsonTokenType.String)
        {
            throw new JsonException($"Expected a string for {typeof(T).Name}, but got {reader.TokenType}.");
        }
 
        return T.Create(reader.GetString()!);
    }
 
    // A type without a Web IDL default throws InvalidOperationException from Value for default(T).
    public override void Write(Utf8JsonWriter writer, T value, JsonSerializerOptions options)
        => writer.WriteStringValue(value.Value);
}