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

namespace PrizeSystem
{
    public class PrizeConverter : JsonConverter<Prize>
    {
        public override Prize ReadJson(JsonReader reader, Type objectType, Prize existingValue, bool hasExistingValue, JsonSerializer serializer)
        {
            var jsonObject = JObject.Load(reader);

            var prizeTypeToken = jsonObject["PrizeType"];
            if (prizeTypeToken == null)
                throw new JsonSerializationException("Missing PrizeType field");
            
            var prizeType = prizeTypeToken.ToObject<PrizeType>();

            // Создаем объект нужного типа
            Prize prize = prizeType switch
            {
                PrizeType.None => new EmptyPrize(),
                PrizeType.Qr => new QrPrize(""), // временный, заполним ниже
                PrizeType.VitrinaBox => new VitrinaPrize(Array.Empty<int>()),
                PrizeType.Ticket or PrizeType.Marbles or PrizeType.Hopper =>
                    new CountablePrize(CountablePrizeType.Ticket, 0), // временный
                _ => throw new NotSupportedException($"Unknown prize type: {prizeType}")
            };

            // Заполняем поля через стандартную десериализацию
            using (var subReader = jsonObject.CreateReader())
            {
                serializer.Populate(subReader, prize);
            }

            return prize;
        }

        public override void WriteJson(JsonWriter writer, Prize value, JsonSerializer serializer)
        {
            var jsonObject = JObject.FromObject(value, serializer);
            jsonObject.WriteTo(writer);
        }
    }
}