Source

// Loading a document's pages: the uploaded PDF, or the PDF rendered from its text.
import { getFiles } from "@bounded-sh/client";
import { renderTextPdf } from "./textpdf";
import { parseJson, type Doc, type Field, type Signer } from "../../functions/lib/doc";

export interface Base { bytes: Uint8Array; fields: Field[] }

/** The document's pages: the uploaded PDF, or the PDF rendered from its text. */
export async function loadBase(docId: string, doc: Doc, signers: Signer[]): Promise<Base> {
  if (doc.sourceKind === "text") {
    const r = await renderTextPdf(doc.title, doc.text || "", signers, doc.createdAt);
    return { bytes: r.bytes, fields: r.fields };
  }
  const res = await getFiles(`docfiles/${docId}/f`);
  const file = (res?.data || [])[0];
  if (!file?.url) throw new Error("The document's file is not available yet. Try again in a moment.");
  const r = await fetch(file.url);
  if (!r.ok) throw new Error("The document's file could not be downloaded. Try again.");
  return { bytes: new Uint8Array(await r.arrayBuffer()), fields: parseJson<Field[]>(doc.fields, []) };
}