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/*
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 *  This file is part of CoCalc: Copyright © 2020 Sagemath, Inc.
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 *  License: MS-RSL – see LICENSE.md for details
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 */
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// provided by nextjs: https://nextjs.org/blog/next-9-4#improved-built-in-fetch-support
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declare var fetch;
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import { RAW_MAX_SIZE_BYTES } from "./api";
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export default async function getPublicPathInfoUrl(url: string) {
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  if (!url.startsWith("url/")) {
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    throw Error("url must start with 'url/'");
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  }
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  // TODO: more than just text documents...
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  let content: string | undefined = undefined;
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  let err: Error | undefined = undefined;
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  for (const start of ["https://", "http://"]) {
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    try {
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      content = await (
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        await fetch(`${start}${url.slice("url/".length)}`, {
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          size: RAW_MAX_SIZE_BYTES,
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        })
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      ).text();
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      break;
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    } catch (_err) {
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      err = _err;
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    }
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  }
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  if (content == null) {
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    throw err;
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  }
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  return {
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    contents: { content, size: content.length },
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    relativePath: "",
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    projectTitle: `Document at ${url}`,
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  };
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}
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