local pck = asset.resource({
  Name = "General PCK Kernels",
  Type = "HttpSynchronization",
  Identifier = "general_pck",
  Version = 1
})

local spk = asset.resource({
  Name = "General SPK Kernels",
  Type = "HttpSynchronization",
  Identifier = "general_spk",
  Version = 2
})


-- The following IDs are defined in the de430 kernel provided by the `generic_spk` package
local ID = {
  Earth = "EARTH",
  EarthBarycenter = "EARTH BARYCENTER",
  Mars = "MARS",
  MarsBarycenter = "MARS BARYCENTER",
  Mercury = "MERCURY",
  MercuryBarycenter = "MERCURY BARYCENTER",
  Moon = "MOON",
  Neptune = "NEPTUNE",
  NeptuneBarycenter = "NEPTUNE BARYCENTER",
  Jupiter = "JUPITER",
  JupiterBarycenter = "JUPITER BARYCENTER",
  Pluto = "PLUTO",
  PlutoBarycenter = "PLUTO BARYCENTER",
  Saturn = "SATURN",
  SaturnBarycenter = "SATURN BARYCENTER",
  SolarSystemBarycenter = "SOLAR SYSTEM BARYCENTER",
  Sun = "SUN",
  Uranus = "URANUS",
  UranusBarycenter = "URANUS BARYCENTER",
  Venus = "VENUS",
  VenusBarycenter = "VENUS BARYCENTER",
}

-- The following frames are provided as built-in reference frames by SPICE itself. See
-- https://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/req/frames.html
-- Appendix: "Built in" Inertial Reference Frames
-- Appendix: "Built in" PCK-Based IAU Body-Fixed Reference Frames
-- Appendix: High Precision Earth Fixed Frames
-- for more information
local Frame = {
  J2000 = "J2000",
  EclipJ2000 = "ECLIPJ2000",
  Galactic = "GALACTIC",

  Earth = "IAU_EARTH",
  ITRF93 = "ITRF93",
  EarthFixed = "EARTH_FIXED",
  Mars = "IAU_MARS",
  Mercury = "IAU_MERCURY",
  Moon = "IAU_MOON",
  Neptune = "IAU_NEPTUNE",
  Jupiter = "IAU_JUPITER",
  Pluto = "IAU_PLUTO",
  Saturn = "IAU_SATURN",
  Sun = "IAU_SUN",
  Uranus = "IAU_URANUS",
  Venus = "IAU_VENUS",

  ["52Europa"] = "IAU_52_EUROPA",
  Adrastea = "IAU_ADRASTEA",
  Amalthea = "IAU_AMALTHEA",
  Ananke = "IAU_ANANKE",
  Ariel = "IAU_ARIEL",
  Arrokoth = "IAU_ARROKOTH",
  Atlas = "IAU_ATLAS",
  Belinda = "IAU_BELINDA",
  Bennu = "IAU_BENNU",
  Bianca = "IAU_BIANCA",
  Borrelly = "IAU_BORRELLY",
  Callirrhoe = "IAU_CALLIRRHOE",
  Callisto = "IAU_CALLISTO",
  Calypso = "IAU_CALYPSO",
  Carme = "IAU_CARME",
  Ceres = "IAU_CERES",
  Chaldene = "IAU_CHALDENE",
  Charon = "IAU_CHARON",
  Cordelia = "IAU_CORDELIA",
  Cressida = "IAU_CRESSIDA",
  Davida = "IAU_DAVIDA",
  Deimos = "IAU_DEIMOS",
  Desdemona = "IAU_DESDEMONA",
  Despina = "IAU_DESPINA",
  Didymos = "IAU_DIDYMOS",
  Dimorphos = "IAU_DIMORPHOS",
  Dione = "IAU_DIONE",
  DonaldJohanson = "IAU_DONALDJOHANSON",
  Elara = "IAU_ELARA",
  Enceladus = "IAU_ENCELADUS",
  Epimetheus = "IAU_EPIMETHEUS",
  Erinome = "IAU_ERINOME",
  Eros = "IAU_EROS",
  Europa = "IAU_EUROPA",
  Eurybates = "IAU_EURYBATES",
  Galatea = "IAU_GALATEA",
  Ganymede = "IAU_GANYMEDE",
  Gaspra = "IAU_GASPRA",
  Harpalyke = "IAU_HARPALYKE",
  Helene = "IAU_HELENE",
  Himalia = "IAU_HIMALIA",
  Hydra = "IAU_HYDRA",
  Hyperion = "IAU_HYPERION",
  Iapetus = "IAU_IAPETUS",
  Ida = "IAU_IDA",
  Io = "IAU_IO",
  Iocaste = "IAU_IOCASTE",
  Isonoe = "IAU_ISONOE",
  Itokawa = "IAU_ITOKAWA",
  Janus = "IAU_JANUS",
  Juliet = "IAU_JULIET",
  Kalyke = "IAU_KALYKE",
  Larissa = "IAU_LARISSA",
  Leda = "IAU_LEDA",
  Leucus = "IAU_LEUCUS",
  Lutetia = "IAU_LUTETIA",
  Lysithea = "IAU_LYSITHEA",
  Magaclite = "IAU_MAGACLITE",
  Menoetius = "IAU_MENOETIUS",
  Metis = "IAU_METIS",
  Mimas = "IAU_MIMAS",
  Miranda = "IAU_MIRANDA",
  Naiad = "IAU_NAIAD",
  Nereid = "IAU_NEREID",
  Nix = "IAU_NIX",
  Oberon = "IAU_OBERON",
  Ophelia = "IAU_OPHELIA",
  Orus = "IAU_ORUS",
  Pallas = "IAU_PALLAS",
  Pan = "IAU_PAN",
  Pandora = "IAU_PANDORA",
  Pasiphae = "IAU_PASIPHAE",
  Patroclus = "IAU_PATROCLUS",
  Phobos = "IAU_PHOBOS",
  Phoebe = "IAU_PHOEBE",
  Polymele = "IAU_POLYMELE",
  Portia = "IAU_PORTIA",
  Praxidike = "IAU_PRAXIDIKE",
  Prometheus = "IAU_PROMETHEUS",
  Proteus = "IAU_PROTEUS",
  Puck = "IAU_PUCK",
  Queta = "IAU_QUETA",
  Rhea = "IAU_RHEA",
  Rosalind = "IAU_ROSALIND",
  Ryugu = "IAU_RYUGU",
  Sinope = "IAU_SINOPE",
  Steins = "IAU_STEINS",
  Taygete = "IAU_TAYGETE",
  Telesto = "IAU_TELESTO",
  Tempel1 = "IAU_TEMPEL_1",
  Tethys = "IAU_TETHYS",
  Thalassa = "IAU_THALASSA",
  Thebe = "IAU_THEBE",
  Themisto = "IAU_THEMISTO",
  Titan = "IAU_TITAN",
  Titania = "IAU_TITANIA",
  Triton = "IAU_TRITON",
  Umbriel = "IAU_UMBRIEL",
  Vesta = "IAU_VESTA"
}


asset.onInitialize(function()
  openspace.spice.loadKernel(pck .. "pck00011.tpc")
  openspace.spice.loadKernel(spk .. "de430.bsp")
end)

asset.onDeinitialize(function()
  openspace.spice.unloadKernel(spk .. "de430.bsp")
  openspace.spice.unloadKernel(pck .. "pck00011.tpc")
end)

asset.export("ID", ID)
asset.export("Frame", Frame)



asset.meta = {
  Name = "SPICE Base",
  Version = "1.1",
  Description = [[This asset contains the spice base kernels necessary for any space
    application. Includes positions for Solar System bodies from 1850 to 2150]],
  Author = "OpenSpace Team",
  URL = "https://naif.jpl.nasa.gov/naif/data_generic.html",
  License = "NASA"
}