feat(billing): cancel in-app with a one-question reason

Add a "Cancel subscription" button beside "Manage Subscription" in Settings.
It opens a dialog with one optional question (five answers, no default, a
note box under the two that want detail), then schedules the Stripe
subscription to end at the close of the current period without a trip to
the portal. The answer is stored in a new subscription_cancellations table
and shown, with an all-time tally, on the admin dashboard; the category is
also mirrored onto Stripe's cancellation feedback, the free text stays local.

The cancel route claims the local cancel flag with a conditional update
before calling Stripe, so two racing requests cannot both write a reason
row, and hands the claim back when Stripe refuses. A subscription Stripe no
longer knows answers 409 with a pointer to the portal instead of a 500. The
route carries an account-keyed rate limit on top of the shared IP one.

Two fixes found on the way: the pinned Stripe API version reports
current_period_end on the subscription item rather than the subscription, so
the sync stored null for every period end; a shared helper now reads the item
first. And the RadioGroup styles targeted a data-checked attribute radix
never writes, so the checked state was invisible in the light theme.
This commit is contained in:
Yusuf İpek
2026-09-08 14:05:16 +03:00
parent d5d2f0535e
commit 7aeda83eb6
16 changed files with 1147 additions and 8 deletions
+21 -4
View File
@@ -746,6 +746,26 @@ function hasEntitledPrice(subscription: Stripe.Subscription, configuredPriceId:
return subscription.items.data.some((item) => item.price.id === configuredPriceId);
}
/**
* When the current billing period ends, as a Unix timestamp, or null.
*
* The API version this client pins (2026-02-25) reports the period on each
* subscription item rather than on the subscription itself, and every item of
* a single-price subscription carries the same dates. The top-level field is
* still read afterwards so an older fixture or a replayed event body from a
* previous version keeps working.
*/
export function getSubscriptionPeriodEnd(subscription: Stripe.Subscription): number | null {
const fromItem = subscription.items?.data?.[0]?.current_period_end;
if (typeof fromItem === 'number') {
return fromItem;
}
return 'current_period_end' in subscription && typeof subscription.current_period_end === 'number'
? subscription.current_period_end
: null;
}
export async function syncStripeSubscriptionToUser(subscription: Stripe.Subscription) {
const customerId =
typeof subscription.customer === 'string' ? subscription.customer : subscription.customer.id;
@@ -768,10 +788,7 @@ export async function syncStripeSubscriptionToUser(subscription: Stripe.Subscrip
return null;
}
const currentPeriodEnd =
'current_period_end' in subscription && typeof subscription.current_period_end === 'number'
? subscription.current_period_end
: null;
const currentPeriodEnd = getSubscriptionPeriodEnd(subscription);
const cancelAt =
'cancel_at' in subscription && typeof subscription.cancel_at === 'number'
? subscription.cancel_at