ReFuel.Gltf/ReFuel.Gltf/GltfTexture.cs

using System;
using System.Text.Json;

namespace ReFuel.Gltf
{
    public class GltfTexture : GltfIdObject
    {
        public override GltfObjectKind Kind => GltfObjectKind.Texture;
        private GltfSmartId<GltfSampler> _sampler;
        private GltfSmartId<GltfImage> _source;

        public string? Name { get; set; } = null;

        public GltfSampler? Sampler
        {
            get => _sampler.IsSet ? _sampler.Value : null;
            set
            {
                if (value is null)
                    _sampler.Reset();
                else
                    _sampler.Value = value;
            }
        }

        public GltfImage? Source
        {
            get => _source.IsSet ? _source.Value : null;
            set
            {
                if (value is null)
                    _source.Reset();
                else
                    _source.Value = value;
            }
        }


        internal GltfTexture(GltfDocument document) : base(document)
        {
            _sampler = new GltfSmartId<GltfSampler>(document.Samplers);
            _source = new GltfSmartId<GltfImage>(document.Images);
        }

        internal override void Deserialize(JsonElement element)
        {
            if (element.ValueKind != JsonValueKind.Object)
                throw new Exception("Expected an object.");
            
            foreach (JsonProperty property in element.EnumerateObject())
            {
                switch (property.Name)
                {
                case "name":
                    Name = property.Value.GetString();
                    break;
                case "source":
                    _source.Id = property.Value.GetInt32();
                    break;
                case "sampler":
                    _sampler.Id = property.Value.GetInt32();
                    break;
                }
            }

            DeserializeCommon(element);
        }

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