/**
 * Preserve source topology because simplification damages the atlas UV seams
 * used by RoM environment meshes. Keep optimization focused on mesh size and
 * repeated placements. Texture work is disabled here because the CLI's
 * default auto-compressor resizes images to 2048px; a separate KTX2 pass encodes
 * the full-size source images without changing their dimensions.
 */
export function environmentOptimizationArguments(sourceFile, outputFile, {
  preserveNativeWaterLayers = false,
  preserveMaterialVariantCarriers = false,
} = {}) {
  return [
    "optimize", sourceFile, outputFile,
    "--compress", "meshopt", "--meshopt-level", "high",
    "--instance", "true", "--instance-min", "3",
    "--simplify", "false",
    "--texture-compress", "false",
    // KHR_materials_variants can carry native water maps or browser-adapted
    // surface-detail maps. Joining/pruning sees only the default material and
    // can discard a carrier, its UVs, or its mapping before runtime selection.
    ...((preserveNativeWaterLayers || preserveMaterialVariantCarriers)
      ? ["--join", "false", "--prune", "false", "--prune-attributes", "false"]
      : []),
  ];
}