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import {api_base, CookieNames} from "$configuration";
import {log_debug, log_error} from "$help/logger";
import {error, redirect} from "@sveltejs/kit";
import {Temporal} from "temporal-polyfill";
import type {LayoutServerLoad} from "./$types";
export const load: LayoutServerLoad = async ({route, cookies, locals}) => {
const isBaseRoute = route.id === "/(main)";
const isPublicRoute = (route.id?.startsWith("/(main)/(public)") || isBaseRoute) ?? true;
const sessionIsValid = (await cached_result<Response>("sessionCheck", 120, () => fetch(api_base("_/valid-session"), {
headers: {
Cookie: CookieNames.session + "=" + cookies.get(CookieNames.session),
},
}).catch((e) => {
log_error(e);
throw error(503, {
message: "We are experiencing a service disruption! Have patience while we resolve the issue.",
});
}))).ok;
log_debug("Base Layout loaded", {
sessionIsValid,
isPublicRoute,
routeId: route.id,
});
if (sessionIsValid && isPublicRoute) {
throw redirect(302, "/home");
} else if (isBaseRoute || !sessionIsValid && !isPublicRoute) {
throw redirect(302, "/sign-in");
}
return {
locale: locals.locale,
};
};
let resultCache = {};
async function cached_result<T>(key: string, staleAfterSeconds: number, code: any) {
if (!resultCache[key]) {
resultCache[key] = {
l: 0,
c: undefined as T,
};
}
const staleEpoch = ((resultCache[key]?.l ?? 0) + staleAfterSeconds);
const isStale = staleEpoch < Temporal.Now.instant().epochSeconds;
if (isStale || !resultCache[key]?.c) {
resultCache[key].c = await code();
resultCache[key].l = Temporal.Now.instant().epochSeconds;
}
log_debug("Ran cached_result", {
cacheKey: key,
isStale,
cache: resultCache[key],
staleEpoch,
});
return resultCache[key].c as T;
}
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