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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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import { getLogger } from "./logger";
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let bugCount: number = 0;
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const STARS =
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  "\nBUG ****************************************************************************\n";
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export function init() {
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  const log = getLogger("BUG (uncaughtException)");
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  getLogger("handler").debug("initializing uncaughtException handler");
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  process.on("uncaughtExceptionMonitor", (err, origin) => {
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    // sometimes we only get one output and then process terminates, despite the uncaughtException,
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    // so we make the best of it:
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    log.error(STARS, err, origin, err.stack);
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  });
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  const f = (err) => {
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    bugCount += 1;
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    const border = `BUG (count=${bugCount}) ${STARS}`;
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    log.error(border);
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    log.error(`Uncaught exception: ${err}`);
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    console.warn(err);
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    log.error(err.stack);
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    log.error(border);
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  };
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  process.on("uncaughtException", f);
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  process.on("unhandledRejection", f);
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}
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export default function getBugCount(): number {
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  return bugCount;
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}
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export function bad(n) {
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  if (Math.random() < n) {
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    console.log("not throwing error");
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    return;
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  }
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  console.log("throwing an error on purpose");
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  throw Error("foo");
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}
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