poke/src/libpoketube/init/pages-404-and-main.js

 const {  fetcher,core, wiki,musicInfo, modules, version, initlog, init,} = require("../libpoketube-initsys.js");
const {
  IsJsonString,
  convert,
  getFirstLine,
  capitalizeFirstLetter,
  turntomins,
  getRandomInt,
  getRandomArbitrary,
} = require("../ptutils/libpt-coreutils.js");

const sha384 = modules.hash;

module.exports = function (app, config, renderTemplate) {
 app.get("/:v*?", async function (req, res) {
  let rendermainpage = () => {
    if (req.useragent.isMobile) {
      return res.redirect(`/discover`);
    } else {
      return renderTemplate(res, req, "landing.ejs");
    }
  };

  if (req.params.v) {
    const isvld = await core.isvalidvideo(req.params.v);

    if (isvld) {
      return res.redirect(`/watch?v=${req.params.v}`);
    } else {
      return rendermainpage();
    }
  } else {
    return rendermainpage();
  }
});
 
app.get("/discover", async function (req, res) {
  const trends = await modules.fetch(config.tubeApi + `trending`);
  const h = await trends.text();
  const k = JSON.parse(modules.toJson(h));

  if (req.query.tab) var tab = `/?type=${capitalizeFirstLetter(req.query.tab)}`;

  if (!req.query.tab) var tab = "";

  const invtrend = await modules
    .fetch(`https://vid.puffyan.us/api/v1/trending${tab}`)
    .then((res) => res.text());

  const t = JSON.parse(invtrend);

  if (req.query.mobilesearch) {
    var query = req.query.mobilesearch;
    tab = "search";
    if (req.query.continuation) {
      var continuation = req.query.continuation;
    }
    if (!req.query.continuation) {
      var continuation = "";
    }

    const search = await modules.fetch(
      `https://tube.kuylar.dev/api/search?query=${query}&continuation=${continuation}`
    );

    const text = await search.text();
    var j = JSON.parse(modules.toJson(text));
  }

  renderTemplate(res, req, "main.ejs", {
    k: k,
    tab: req.query.tab,
    isMobile: req.useragent.isMobile,
    mobilesearch: req.query.mobilesearch,
    inv: t,
    turntomins,
    continuation,
    j,
  });
});

}