| 1 | import { useEffect, useMemo, useState } from "react"; |
| 2 | import { Link, isRouteErrorResponse, useLocation, useMatches, useRevalidator, useRouteLoaderData } from "react-router"; |
| 3 | |
| 4 | import { DebugDetails } from "./debug-details"; |
| 5 | import { PageMain } from "./landmark"; |
| 6 | import { NotFound } from "./not-found"; |
| 7 | import { Button } from "./ui/button"; |
| 8 | import { ButtonLink } from "./ui"; |
| 9 | import { useDeveloperMode } from "../lib/developer-mode"; |
| 10 | import { useReconnect } from "../lib/reconnect"; |
| 11 | import { isNetworkFailure } from "../lib/resilient-fetch"; |
| 12 | import { RELOADED_KEY, RELOAD_GIVE_UP_MS, clientNavigated, reloadFixes, reloadedBefore } from "../lib/stale-build"; |
| 13 | import { isNeedsSignIn } from "../lib/website-token"; |
| 14 | |
| 15 | /** |
| 16 | * What a page shows in place of itself when it failed: the root's error |
| 17 | * page, and, `contained`, the one a repository's, workspace's or settings' |
| 18 | * page shows inside its frame (routes/page-boundary.tsx), so its header, |
| 19 | * tabs and sidebar stay and only the page itself is replaced. |
| 20 | * |
| 21 | * A tab left open across a deploy loads the address again, once; no answer |
| 22 | * from g1t at all keeps trying and comes back by itself (lib/reconnect.ts); |
| 23 | * a 404 is the not-found page; anything else says what went wrong, with |
| 24 | * a way to try again, and in developer mode the error in full. |
| 25 | */ |
| 26 | export function RouteError({ error, contained = false }: { error: unknown; contained?: boolean }) { |
| 27 | const location = useLocation(); |
| 28 | const matches = useMatches(); |
| 29 | const revalidator = useRevalidator(); |
| 30 | const href = location.pathname + location.search + location.hash; |
| 31 | // A tab left open across a deploy: load the address again as a whole |
| 32 | // page, once, rather than show an error the reload fixes. A document load |
| 33 | // never reloads, so the server and the hydrating client render the same. |
| 34 | const reloadable = reloadFixes({ |
| 35 | error, |
| 36 | status: isRouteErrorResponse(error) ? error.status : undefined, |
| 37 | clientNavigation: clientNavigated(location.key), |
| 38 | caughtByCatchAll: matches.at(-1)?.id === "routes/not-found", |
| 39 | }); |
| 40 | // Already loaded again once, or the reload never started: show the page. |
| 41 | const tried = useMemo(() => reloadable && reloadedBefore(href), [reloadable, href]); |
| 42 | // The error in full, for reporting it (lib/developer-mode.ts). |
| 43 | const root = useRouteLoaderData("root") as { developer?: boolean } | undefined; |
| 44 | const developer = useDeveloperMode(root?.developer) || import.meta.env.DEV; |
| 45 | const [gaveUp, setGaveUp] = useState<string | null>(null); |
| 46 | const reload = reloadable && !tried && gaveUp !== href; |
| 47 | // No answer from g1t at all: keep trying, and the page comes back by itself. |
| 48 | const offline = !reload && isNetworkFailure(error); |
| 49 | useReconnect(offline); |
| 50 | useEffect(() => { |
| 51 | if (!reload) return; |
| 52 | try { |
| 53 | sessionStorage.setItem(RELOADED_KEY, href); |
| 54 | } catch { |
| 55 | // No session storage: reload anyway; a document load never asks again. |
| 56 | } |
| 57 | window.location.assign(href); |
| 58 | const timer = window.setTimeout(() => setGaveUp(href), RELOAD_GIVE_UP_MS); |
| 59 | return () => window.clearTimeout(timer); |
| 60 | }, [reload, href]); |
| 61 | |
| 62 | const space = contained ? "py-16" : "py-32"; |
| 63 | if (reload) { |
| 64 | return ( |
| 65 | <PageMain className={`mx-auto max-w-xl px-4 ${space} text-center text-sm text-muted`} aria-busy="true"> |
| 66 | <title>Loading · g1t</title> |
| 67 | Loading the latest version of g1t… |
| 68 | </PageMain> |
| 69 | ); |
| 70 | } |
| 71 | |
| 72 | if (offline) { |
| 73 | return ( |
| 74 | <PageMain className={`mx-auto max-w-xl px-4 ${space} text-center`} aria-busy="true"> |
| 75 | <title>Reconnecting · g1t</title> |
| 76 | <h1 className="text-2xl font-semibold tracking-tight">Can't reach g1t</h1> |
| 77 | <p className="mt-3 text-muted">Check your connection. This page loads by itself once g1t answers.</p> |
| 78 | </PageMain> |
| 79 | ); |
| 80 | } |
| 81 | |
| 82 | let title = "Something went wrong"; |
| 83 | let details = contained ? "This page didn't load. The rest of g1t is fine; try again in a moment." : "An unexpected error occurred. Try again in a moment."; |
| 84 | |
| 85 | if (isRouteErrorResponse(error)) { |
| 86 | // The same page for something private and something missing. |
| 87 | if (error.status === 404) { |
| 88 | return ( |
| 89 | <> |
| 90 | <title>Not found · g1t</title> |
| 91 | <NotFound data={error.data} /> |
| 92 | </> |
| 93 | ); |
| 94 | } |
| 95 | if (typeof error.data === "string" && error.data) { |
| 96 | details = error.data; |
| 97 | } |
| 98 | // A token asked for what needs a real sign-in (lib/website-token.ts). |
| 99 | if (isNeedsSignIn(error.data)) { |
| 100 | title = "This needs you to sign in"; |
| 101 | details = error.data.message; |
| 102 | } |
| 103 | } |
| 104 | |
| 105 | return ( |
| 106 | <PageMain className={`mx-auto px-4 text-center ${developer ? `max-w-3xl ${contained ? "py-10" : "py-16"}` : `max-w-xl ${space}`}`}> |
| 107 | <h1 className="text-2xl font-semibold tracking-tight">{title}</h1> |
| 108 | <p className="mt-3 text-muted">{details}</p> |
| 109 | <div className="mt-8 flex justify-center gap-2"> |
| 110 | <Button variant="outline" disabled={revalidator.state !== "idle"} onClick={() => void revalidator.revalidate()}> |
| 111 | {revalidator.state !== "idle" ? "Trying again…" : "Try again"} |
| 112 | </Button> |
| 113 | {!contained && ( |
| 114 | <ButtonLink to="/" variant="ghost"> |
| 115 | Back to home |
| 116 | </ButtonLink> |
| 117 | )} |
| 118 | </div> |
| 119 | {developer ? ( |
| 120 | <DebugDetails error={error} /> |
| 121 | ) : ( |
| 122 | <p className="mt-6 text-xs text-faint"> |
| 123 | Turn on developer mode in{" "} |
| 124 | <Link to="/settings/account#developer" className="underline underline-offset-4 hover:text-fg"> |
| 125 | Settings |
| 126 | </Link>{" "} |
| 127 | to see what went wrong. |
| 128 | </p> |
| 129 | )} |
| 130 | </PageMain> |
| 131 | ); |
| 132 | } |