import {
  loadUltraHdr,
  loadHdr,
  loadExr,
  loadDraco,
  loadKtx2,
} from "pex-loaders";
import createContext from "pex-context";

const ctx = createContext();

const getEnvMap = async (ctx, url) => {
  if (url.endsWith(".jpg")) return await loadUltraHdr(ctx, url);
  if (url.endsWith(".hdr")) return await loadHdr(ctx, url);
  if (url.endsWith(".exr")) return await loadExr(ctx, url);

  throw new Error("Unsupported env map file type");
};

const loadDracoGeometry = async (urlOrArrayBuffer) => {
  return await loadDraco(urlOrArrayBuffer, {
    transcoderPath: "assets/decoders/draco/",
  });
};

const loadKtxTexture = async (ctx, urlOrArrayBuffer) => {
  return await loadKtx2(urlOrArrayBuffer, {
    basisOptions: {
      gl: ctx.gl,
      transcoderPath: "assets/decoders/basis/",
    },
  });
};