/**
 * acadrust DWG parser wrapper — loads the wasm built from rust/dwg-wasm
 * (wasm-pack --target web, committed under ./acadrust-dwg).
 */
import init, { parse_dwg } from './acadrust-dwg/acadrust_dwg.js';
import wasmUrl from './acadrust-dwg/acadrust_dwg_bg.wasm?url';
import type { CadParseResult } from './dwgParser';

let ready: Promise<void> | null = null;

/** Initialize the acadrust WASM module once (idempotent). */
export function initAcadrustParser(): Promise<void> {
  if (!ready) ready = init({ module_or_path: wasmUrl }).then(() => undefined);
  return ready;
}

/** Parse a DWG buffer. Requires initAcadrustParser() first. */
export function parseDwgAcadrust(bytes: Uint8Array): CadParseResult {
  return parse_dwg(bytes) as CadParseResult;
}