using System;

using System.Collections;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Runtime.Serialization.Formatters;

using System.IO;

using System.Data;

using System.ComponentModel.DataAnnotations;

using System.Globalization;

​

​

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

using Newtonsoft.Json.Converters;

using Newtonsoft.Json.Serialization;    

​

    //https://stackoverflow.com/questions/49846209/deserialize-a-value-serialized-in-two-different-ways-with-json-net

    [JsonConverter(typeof(ValuesConverter))]

    public class Values

    {

        public int BestValue { get; set; }

        public List<string> AllValues { get; set; }

    }

​

    internal class ValuesConverter : JsonConverter

    {

        public override bool CanConvert(Type objectType)

        {

            return typeof(Values).IsAssignableFrom(objectType);

        }

​

        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)

        {

            var tokenType = reader.SkipComments().TokenType;

            if (tokenType == JsonToken.Null)

                return null;

            var value = existingValue as Values ?? (Values)serializer.ContractResolver.ResolveContract(objectType).DefaultCreator();

            if (tokenType == JsonToken.Date)

            {

                // Avoid annoying bug that converts date strings to local format described in 

                // https://stackoverflow.com/questions/35166060/json-net-get-specific-json-date-value

                value.AllValues = new List<string> { JToken.Load(reader).ToString(Formatting.None).Trim('"') };

            }

            else if (tokenType.IsPrimitive())

            {

                value.AllValues = new List<string> { (string)JToken.Load(reader) };

            }

            else

            {

                serializer.Populate(reader, value);

            }

            return value;

        }

​

​

        public override bool CanWrite { get { return false; } }

​

        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)

        {

            throw new NotImplementedException();

        }

    }

​

    public static partial class JsonExtensions

    {

        public static JsonReader SkipComments(this JsonReader reader)

        {

            while (reader.TokenType == JsonToken.Comment && reader.Read())

                ;

            return reader;

        }

        public static bool IsPrimitive(this JsonToken tokenType)

        {

            switch (tokenType)

            {

                case JsonToken.Integer:

                case JsonToken.Float:

                case JsonToken.String:

                case JsonToken.Boolean:

                case JsonToken.Undefined:

                case JsonToken.Null:

                case JsonToken.Date:

                case JsonToken.Bytes:

                    return true;

                default:

                    return false;

            }

        }

    }

​

    public class ValuesSubclass : Values

    {

        public string SomeOtherProperty { get; set; }

    }

​

    class TestClass

    {

        public static void Test()

        {

            var json = GetJson();

            Console.WriteLine("Input JSON: ");

            Console.WriteLine(json);

​

            Test<Values>(json);

            Test<ValuesSubclass>(json);

        }

        public static void Test<TValues>(string json) where TValues : Values

        {

            Console.WriteLine("\nTesting List<{0}>: ", typeof(TValues));

            var list = JsonConvert.DeserializeObject<List<TValues>>(json);

​

            var json2 = JsonConvert.SerializeObject(list, Formatting.Indented);

​

            Console.WriteLine("Re-serialized JSON: ");

            Console.WriteLine(json2);

            Assert.IsTrue(list.Count == JArray.Parse(json).Where(t => t.Type != JTokenType.Comment).Count());

        }

​

        static string GetJson()

        {

            var json = @"[

""2009-02-15T00:00:00Z"" /* Make sure dates work */,

""MyFirstValue""  /* if only one value */,

// If multiple values

{ ""BestValue"" : 0, ""AllValues"" : [""DefaultValue"", ""OtherValue""] },

null /* check that null works */,

""c75d06a8-a705-48ec-b6b3-9076becf20f4"" /* Make sure GUIDs work */

]";

            return json;

        }

    }

​

    public class Program

    {

        public static void Main()

        {

            Console.WriteLine("Environment version: " + Environment.Version);

            Console.WriteLine("Json.NET version: " + typeof(JsonSerializer).Assembly.FullName);

            Console.WriteLine();

​

            try

            {

                TestClass.Test();

            }

            catch (Exception ex)

            {

                Console.WriteLine("Failed with unhandled exception: ");

                Console.WriteLine(ex);

                throw;

            }

        }

    }

​

    public class AssertionFailedException : System.Exception

    {

        public AssertionFailedException() : base() { }

​

        public AssertionFailedException(string s) : base(s) { }

    }

​

    public static class Assert

    {

        public static void IsTrue(bool value)

        {

            IsTrue(value, "failed");

        }

​

        public static void IsTrue(bool value, string message)

        {

            if (value == false)

                throw new AssertionFailedException(message ?? "failed");

        }

    }

​