using Newtonsoft.Json;

namespace YLErp.Converter2
{
    public class QuotedDoubleConverter : JsonConverter<double>
    {
        public override double ReadJson(JsonReader reader, Type objectType, double existingValue, bool hasExistingValue, JsonSerializer serializer)
        {
            if (reader.TokenType == JsonToken.Null)
            {
                return existingValue;
            }
            else
            {
                var str = reader.Value?.ToString();
                if (string.IsNullOrEmpty(str))
                {
                    return existingValue;
                }

                if (double.TryParse(str, out var number))
                {
                    return number;
                }
                else
                {
                    return existingValue;
                }
            }
        }

        public override void WriteJson(JsonWriter writer, double value, JsonSerializer serializer)
        {
            writer.WriteValue(value);
        }
    }
}