@blocknote/core/src/util/esmDependencies.ts

A "Notion-style" block-based extensible text editor built on top of Prosemirror and Tiptap.

// some dependencies only export as ESM modules. This makes them incompatible with Node CJS.
// To work around this, we load these dependencies as dynamic imports in a function that initializes them.

// (to reproduce this issue, run ts-node on a file that users server-util)
export let esmDependencies:
  | undefined
  | {
      rehypeParse: typeof import("rehype-parse");
      rehypeStringify: typeof import("rehype-stringify");
      unified: typeof import("unified");
      hastUtilFromDom: typeof import("hast-util-from-dom");
      rehypeRemark: typeof import("rehype-remark");
      remarkGfm: typeof import("remark-gfm");
      remarkStringify: typeof import("remark-stringify");
      remarkParse: typeof import("remark-parse");
      remarkRehype: typeof import("remark-rehype");
      rehypeFormat: typeof import("rehype-format");
    };

export async function initializeESMDependencies() {
  if (esmDependencies) {
    return esmDependencies;
  }
  const vals = await Promise.all([
    import("rehype-parse"),
    import("rehype-stringify"),
    import("unified"),
    import("hast-util-from-dom"),
    import("rehype-remark"),
    import("remark-gfm"),
    import("remark-stringify"),
    import("remark-parse"),
    import("remark-rehype"),
    import("rehype-format"),
  ]);

  esmDependencies = {
    rehypeParse: vals[0],
    rehypeStringify: vals[1],
    unified: vals[2],
    hastUtilFromDom: vals[3],
    rehypeRemark: vals[4],
    remarkGfm: vals[5],
    remarkStringify: vals[6],
    remarkParse: vals[7],
    remarkRehype: vals[8],
    rehypeFormat: vals[9],
  };

  return esmDependencies;
}