using System;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;

namespace Umbraco.Core.Serialization
{
    /// <summary>
    /// This is used in order to deserialize a json object on a property into a json string since the property's type is 'string'
    /// </summary>
    internal class JsonToStringConverter : JsonConverter
    {
        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
        {
            throw new NotImplementedException();
        }

        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
        {
            if (reader.ValueType == typeof(string))
            {
                return reader.Value;
            }
            // Load JObject from stream
            JObject jObject = JObject.Load(reader);
            return jObject.ToString();
        }

        public override bool CanConvert(Type objectType)
        {
            return typeof(string).IsAssignableFrom(objectType);
        }
    }
}