local assetHelper = asset.require("assethelper")
asset.require("spice/base")

-- Barycenter of the solar system, expressed in the Galactic frame
local SolarSystemBarycenter = {
    Name = "SolarSystemBarycenter"
    -- No parent; this node is attached to the scene graph root
}

-- Spice frame for the Sun
local SunIau = {
    Name = "SunIau",
    Parent = SolarSystemBarycenter.Name,
    Transform = {
        Translation = {
            Type = "SpiceTranslation",
            Target = "SUN",
            Observer = "SSB",
        },
        Rotation = {
            Type = "SpiceRotation",
            SourceFrame = "IAU_SUN",
            DestinationFrame = "GALACTIC"
        }
    }
}

assetHelper.registerSceneGraphNodes(asset, {
    SolarSystemBarycenter,
    SunIau
})

asset.export("SolarSystemBarycenter", SolarSystemBarycenter)
asset.export("SunIau", SunIau)