using System.Collections.Generic;
using System.IO;
using System.Text.Json;
using System.Text.Json.Serialization;
using System.Threading;
using System.Threading.Tasks;

namespace Wabbajack.DTOs.JsonConverters
{
    public class DTOSerializer
    {
        public readonly JsonSerializerOptions Options;

        public DTOSerializer(IEnumerable<JsonConverter> converters)
        {
            Options = new JsonSerializerOptions();
            Options.NumberHandling = JsonNumberHandling.AllowReadingFromString;
            foreach (var c in converters) Options.Converters.Add(c);
        }

        public T? Deserialize<T>(string text)
        {
            return JsonSerializer.Deserialize<T>(text, Options);
        }

        public ValueTask<T?> DeserializeAsync<T>(Stream stream, CancellationToken? token = null)
        {
            return JsonSerializer.DeserializeAsync<T>(stream, Options, token ?? CancellationToken.None);
        }

        public string Serialize<T>(T data, bool writeIndented = false)
        {
            var options = Options;
            if (writeIndented)
            {
                options = new JsonSerializerOptions(Options)
                {
                    WriteIndented = true
                };
            }

            return JsonSerializer.Serialize(data, options);
        }

        public async Task Serialize<T>(T data, Stream of, bool writeIndented = false)
        {
            var options = Options;
            if (writeIndented)
            {
                options = new JsonSerializerOptions(Options)
                {
                    WriteIndented = true
                };
            }

            await JsonSerializer.SerializeAsync(of, data, options);
        }
    }
}