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import {
fetchAccount,
startCheckout,
openBillingPortal,
pollForUpgrade,
AlreadyPremiumError,
NoSubscriptionError,
type AccountState,
} from "../services/accountService";
/** Companion web app origin (specs/004-web-companion-app), injected at build
* time via wxt.config.ts's `define` — never hard-coded (Azure Static Web
* Apps, not GitHub Pages; see constitution Principle V). */
declare const WXT_WEB_APP_URL: string;
/** Auto-retry delay for a failed initial load — transient blips (a brief
* local backend restart, a dropped connection) self-heal without the user
* having to reload the whole panel. */
const RETRY_DELAY_MS = 5000;
/**
* Plan, usage, and renewal state — always visible, never requiring the user
* to hunt for it (contracts/billing-api.md, FR-013). Fetched on mount and on
* window focus (uncached, mirrors withAuth's revocation/activation
* property); a checkout tab triggers short-interval polling until the
* webhook flips tier (SC-004, ≤ 1 min typical).
*/
export function AccountBar() {
const [account, setAccount] = useState<AccountState | null>(null);
const [error, setError] = useState<string | null>(null);
const [checkoutBusy, setCheckoutBusy] = useState(false);
const [portalBusy, setPortalBusy] = useState(false);
const [retryTick, setRetryTick] = useState(0);
const stopPollRef = useRef<(() => void) | null>(null);
const checkoutPending = useDelayedPending(checkoutBusy);
const portalPending = useDelayedPending(portalBusy);
useEffect(() => {
let mounted = true;
let retryTimeout: ReturnType<typeof setTimeout> | null = null;
const load = () => {
fetchAccount()
.then((next) => {
if (!mounted) return;
setAccount(next);
setError(null);
})
.catch(() => {
if (!mounted) return;
// Only surface a blocking error when there's no cached data to
// fall back on. Once the panel has loaded successfully once, a
// later background refresh failure (focus/retry) retries quietly
// instead of alarming the user over data that's still correct.
setAccount((current) => {
if (current === null) setError("Couldn't load your account.");
return current;
});
retryTimeout = setTimeout(load, RETRY_DELAY_MS);
});
};
load();
window.addEventListener("focus", load);
return () => {
mounted = false;
window.removeEventListener("focus", load);
stopPollRef.current?.();
if (retryTimeout) clearTimeout(retryTimeout);
};
}, [retryTick]);
const handleUpgrade = async () => {
setCheckoutBusy(true);
setError(null);
try {
const { checkoutUrl } = await startCheckout();
window.open(checkoutUrl, "_blank", "noopener,noreferrer");
stopPollRef.current?.();
stopPollRef.current = pollForUpgrade((next) => setAccount(next));
} catch (err) {
setError(
err instanceof AlreadyPremiumError
? "You're already on Premium."
: "Couldn't open checkout. Try again."
);
} finally {
setCheckoutBusy(false);
}
};
const handleManage = async () => {
setPortalBusy(true);
setError(null);
try {
const { portalUrl } = await openBillingPortal();
window.open(portalUrl, "_blank", "noopener,noreferrer");
} catch (err) {
setError(
err instanceof NoSubscriptionError
? "No subscription to manage yet."
: "Couldn't open the portal. Try again."
);
} finally {
setPortalBusy(false);
}
};
if (!account) {
return (
<div
role="status"
aria-label="Loading account"
className="flex items-center gap-2 border-b border-gray-200/70 bg-white px-3 py-1.5 text-xs text-gray-400 dark:border-gray-800 dark:bg-gray-900 dark:text-gray-500"
>
{error ?? "Loading…"}
{error && (
<button
onClick={() => setRetryTick((tick) => tick + 1)}
className="font-medium text-blue-600 underline hover:text-blue-700 dark:text-blue-400"
>
Retry
</button>
)}
</div>
);
}
const planLabel = account.tier === "premium" ? "Premium" : "Free";
return (
<div className="flex flex-col gap-1 border-b border-gray-200/70 bg-white px-3 py-1.5 text-xs dark:border-gray-800 dark:bg-gray-900">
<div className="flex items-center justify-between gap-2">
<div className="flex min-w-0 flex-col">
<div className="flex items-center gap-1.5">
<span
aria-label={`Plan: ${planLabel}`}
className={`rounded-full px-1.5 py-0.5 text-[10px] font-semibold ${
account.tier === "premium"
? "bg-blue-100 text-blue-800 dark:bg-blue-950/60 dark:text-blue-300"
: "bg-gray-100 text-gray-700 dark:bg-gray-800 dark:text-gray-300"
}`}
>
{planLabel}
</span>
<span className="text-gray-500 dark:text-gray-400">
{account.usage.count} of {account.usage.limit} analyses this month
</span>
</div>
<span className="text-[10px] text-gray-400 dark:text-gray-500">
{describeSubscription(account)}
</span>
</div>
<div className="flex shrink-0 items-center gap-1.5">
{account.tier === "free" && (
<button
onClick={() => void handleUpgrade()}
aria-label="Upgrade to Premium"
aria-busy={checkoutPending}
disabled={checkoutBusy}
className="rounded-md bg-blue-600 px-2 py-1 text-[11px] font-semibold text-white transition-colors hover:bg-blue-700 disabled:cursor-wait disabled:opacity-70"
>
{checkoutPending ? "Opening…" : "Upgrade"}
</button>
)}
{account.subscription && (
<button
onClick={() => void handleManage()}
aria-label="Manage subscription"
aria-busy={portalPending}
disabled={portalBusy}
className="rounded-md px-2 py-1 text-[11px] font-medium text-gray-500 transition-colors hover:bg-gray-100 hover:text-gray-700 disabled:cursor-wait disabled:opacity-70 dark:text-gray-400 dark:hover:bg-gray-800"
>
{portalPending ? "Opening…" : "Manage subscription"}
</button>
)}
{WXT_WEB_APP_URL && (
<a
href={WXT_WEB_APP_URL}
target="_blank"
rel="noopener noreferrer"
aria-label="Open the web app in a new tab"
title="Open web app"
className="shrink-0 rounded-md p-1 text-gray-400 transition-colors hover:bg-gray-100 hover:text-gray-600 dark:text-gray-500 dark:hover:bg-gray-800 dark:hover:text-gray-300"
>
<svg
xmlns="http://www.w3.org/2000/svg"
width="13"
height="13"
viewBox="0 0 24 24"
fill="none"
stroke="currentColor"
strokeWidth="2.5"
strokeLinecap="round"
strokeLinejoin="round"
aria-hidden="true"
>
<path d="M18 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h6" />
<path d="M15 3h6v6" />
<path d="M10 14 21 3" />
</svg>
</a>
)}
</div>
</div>
{error && (
<p role="alert" className="text-[10px] text-red-600 dark:text-red-400">
{error}
</p>
)}
</div>
);
}
/** Stable display vocabulary (Principle III, contracts/billing-api.md).
* Keyed off account.tier first — the backend keeps a subscription record
* around after full cancellation (subscriptionStatus stays a truthy
* "canceled" string), so subscription presence alone can't distinguish a
* downgraded account from an active one. */
function describeSubscription(account: AccountState): string {
const sub = account.subscription;
if (account.tier !== "premium") return "Free plan";
if (!sub) return "Premium";
if (sub.status === "past_due") {
return "Payment problem — update your payment method";
}
if (sub.endsAt) return `Premium until ${formatDate(sub.endsAt)}`;
if (sub.renewsAt) return `Renews on ${formatDate(sub.renewsAt)}`;
return "Premium";
}
function formatDate(iso: string): string {
return new Date(iso).toLocaleDateString("en-US", {
month: "long",
day: "numeric",
timeZone: "UTC",
});
}
/** True only once `active` has held for more than delayMs (>300ms feedback contract). */
function useDelayedPending(active: boolean, delayMs = 300): boolean {
const [pending, setPending] = useState(false);
useEffect(() => {
if (!active) {
setPending(false);
return;
}
const id = setTimeout(() => setPending(true), delayMs);
return () => clearTimeout(id);
}, [active, delayMs]);
return pending;
}
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