ReFuel.Gltf/ReFuel.Gltf/GltfAsset.cs

using System;
using System.Text.Json;

namespace ReFuel.Gltf
{
    public class GltfAsset : GltfObject
    {
        public override GltfObjectKind Kind => GltfObjectKind.Asset;
        public Version Version { get; private set; } = new Version(2, 0);
        public Version? MinVersion { get; private set; } = null;
        public string? Generator { get; private set; } = null;
        public string? Copyright { get; private set; } = null;

        internal GltfAsset(GltfDocument document) : base(document)
        {
        }

        internal override void Deserialize(JsonElement element)
        {
            if (element.ValueKind != JsonValueKind.Object)
                throw new Exception("Expected a JSON object.");

            JsonElement value;
            if (element.TryGetProperty("version", out value))
            {
                string? str = value.GetString();
                if (Version.TryParse(str, out Version? v))
                {
                    Version = v;
                }
                else
                {
                    throw new Exception("Malformed version string.");
                }
            }

            if (element.TryGetProperty("minVersion", out value))
            {
                string? str = value.GetString();
                if (Version.TryParse(str, out Version? v))
                {
                    MinVersion = v;
                }
                else
                {
                    throw new Exception("Malformed version string.");
                }
            }

            if (element.TryGetProperty("generator", out value))
            {
                Generator = value.GetString();
            }

            if (element.TryGetProperty("copyright", out value))
            {
                Copyright = value.GetString();
            }

            DeserializeCommon(element);
        }

        internal override void Serialize(Utf8JsonWriter writer)
        {
            throw new NotImplementedException();
        }
    }
}