const glob = require("glob");
const { getSubdomainRegExp } = require("./getSubdomainRegExp");
/** Needed to rewrite public booking page, gets all static pages but [user] */
// Pages found here are excluded from redirects in beforeFiles in next.config.js
let pages = (exports.pages = glob
  .sync("{pages,app}/**/[^_]*.{tsx,js,ts}", { cwd: __dirname })
  .map((filename) =>
    filename
      .replace(/^(pages|app)\//, "")
      .replace(/(\.tsx|\.js|\.ts)/, "")
      .replace(/\/.*/, "")
  )
  // "/future" is a temporary directory for incremental migration to App Router
  .filter(
    (v, i, self) =>
      self.indexOf(v) === i &&
      ![
        "[user]",
        "future",
        "_trpc",
        "layout",
        "layoutHOC",
        "WithAppDirSsg",
        "global-error",
        "WithAppDirSsr",
        "WithEmbedSSR",
        "WithEmbedSSR.test",
      ].some((prefix) => v.startsWith(prefix))
  ));

// .* matches / as well(Note: *(i.e wildcard) doesn't match / but .*(i.e. RegExp) does)
// It would match /free/30min but not /bookings/upcoming because 'bookings' is an item in pages
// It would also not match /free/30min/embed because we are ensuring just two slashes
// ?!book ensures it doesn't match /free/book page which doesn't have a corresponding new-booker page.
// [^/]+ makes the RegExp match the full path, it seems like a partial match doesn't work.
// book$ ensures that only /book is excluded from rewrite(which is at the end always) and not /booked

let subdomainRegExp = (exports.subdomainRegExp = getSubdomainRegExp(
  process.env.NEXT_PUBLIC_WEBAPP_URL || `https://${process.env.VERCEL_URL}`
));
exports.orgHostPath = `^(?<orgSlug>${subdomainRegExp})\\.(?!vercel\.app).*`;

/**
 * Returns a regex that matches all existing routes, virtual routes (like /forms, /router, /success etc) and nextjs special paths (_next, public)
 */
function getRegExpMatchingAllReservedRoutes(suffix) {
  // Following routes don't exist but they work by doing rewrite. Thus they need to be excluded from matching the orgRewrite patterns
  // Make sure to keep it upto date as more nonExistingRouteRewrites are added.
  const otherNonExistingRoutePrefixes = ["forms", "router", "success", "cancel"];
  const nextJsSpecialPaths = ["_next", "public"];

  let beforeRewriteExcludePages = pages.concat(otherNonExistingRoutePrefixes).concat(nextJsSpecialPaths);
  return beforeRewriteExcludePages.join(`${suffix}|`) + suffix;
}

// To handle /something
exports.orgUserRoutePath = `/:user((?!${getRegExpMatchingAllReservedRoutes("/?$")})[a-zA-Z0-9\-_]+)`;

// To handle /something/somethingelse
exports.orgUserTypeRoutePath = `/:user((?!${getRegExpMatchingAllReservedRoutes(
  "/"
)})[^/]+)/:type((?!avatar\.png)[^/]+)`;

// To handle /something/somethingelse/embed
exports.orgUserTypeEmbedRoutePath = `/:user((?!${getRegExpMatchingAllReservedRoutes("/")})[^/]+)/:type/embed`;