Commit Graph

4 Commits (main)

Author SHA1 Message Date
nexxo 9da1358802 Stop charging VAT to the customers who owe us none
A verified EU business outside Austria gets reverse charge — rate 0, no VAT
line, the note on the invoice — and was still charged 214,80 € for a 179,00 €
package, because one Stripe Price carried the domestic gross for everybody.
There is no VAT line on their document to reclaim, so it was a flat 20 %
surcharge on exactly the customers who read their invoices, and the document
then stated the whole 214,80 € as net at 0 %, so they self-accounted their own
VAT on a base a fifth too large.

A Stripe Price can ask who is buying after all: there are two per sellable
thing now, the domestic gross and the bare net, both live on one Product, and
the checkout picks by TaxTreatment. The rule is Austria B2B 20 %, other EU B2B
without VAT — a domestic business still pays the gross, reclaims it as input
tax, and the price on the website is still the price charged for them.

- stripe:sync-catalogue mints and archives both halves of every pair, per plan
  and per module; `reverse_charge` on stripe_plan_prices/stripe_addon_prices
  says which is which, and joining it on subscriptions.stripe_price_id says
  which one a running contract is billed on. A rate change moves the gross
  Price and leaves the net one alone, because the net owes nothing to the rate.
- A status that changes after the sale converges: a verification (or a lapse)
  makes stripe:reprice-subscriptions move the contract onto the other Price
  with PRORATE_NONE, because the term is already paid for. The module items
  follow the same way.
- Downstream follows: the invoice total equals what was taken, the proof
  register expects the figure this customer is actually charged (so a correct
  reverse-charge sale is no longer flagged as a mismatch, and an overcharged
  one is), the setup fee obeys the same rule, and the booking page quotes what
  it will charge.
- StripeClient gained activatePrice(). Archived Prices were brought back in our
  own table and left inactive at Stripe, so a rate that moved and moved back
  pointed the catalogue at a Price no checkout could be opened for.

An unverified number is still charged the gross — an unchecked string must
never be a discount — and where the net Price is missing the checkout refuses
rather than reaching for the domestic one.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-07-30 02:15:41 +02:00
nexxo 8ca0d4d257 Say the same thing to the customer, the register and the bank
tests / pest (push) Failing after 8m5s Details
tests / assets (push) Successful in 25s Details
tests / release (push) Has been skipped Details
Five places where the product told somebody a figure that nothing behind
it produced.

**The invoice page showed five invoices nobody was ever issued.** A mock
that outlived its purpose: CP-2026-0003 to CP-2026-0007, a prefix
belonging to no configured series, all "paid", a spend curve from 179 to
198 € and a next charge of 198 € on 01.08.2026 — behind
['auth','verified','customer.active'], so every signed-in customer saw
it. Their real invoices existed in `invoices`, were rendered as PDFs and
mailed to them, and appeared nowhere in the portal at all. The page now
lists their own documents, newest first, with the numbers, dates and
totals off the frozen snapshot, a Storno marked as one, and a download.
The PDF route resolves the document against the signed-in customer in
the query — a URL anybody can type is not made private by not printing
it. No next charge and no chart: nothing here computes what Stripe will
take next cycle, and a figure nobody has worked out is worse than a
blank space.

**The setup fee was quoted everywhere and charged nowhere.** On the
price sheet, on the booking page, set by the operator in the console —
and CompanyProfile::setupFeeCents() had no reader outside the two
sentences that quoted it. It is charged now, as a second non-recurring
line on the same checkout session, which Stripe puts on the initial
invoice only. `orders.setup_fee_cents` records how much of the charge it
was, so the whole total still goes back on a withdrawal while the
register holds the PACKAGE's charge against the contract price and the
invoice prints the fee as a line of its own. The booking page was also
quoting the fee NET under the same sentence the website quotes GROSS —
99,00 against 118,80 — and now quotes what will be taken.

**An upgrade click cancelled a booked downgrade and delivered nothing.**
Nothing in this application marks a cart order paid, so the customer
traded a downgrade they had genuinely booked for a cart line that would
never be fulfilled. The booking now stands until the upgrade actually
lands on the contract, where ApplyPlanChange clears it. The fulfilment
seam is reachable for every type that can be paid — a module and a
storage pack book through BookAddon, which was the missing path from a
paid order to a SubscriptionAddon and left AddonPrices,
SyncStripeAddonItems and clupilot:end-cancelled-addons with no caller
behind a payment. A paid traffic pack logs an error rather than pretending:
the metered allowance is a standing count of packs while a top-up is sold
for one month, and which of the two is meant is not a guess to make here.
That no path to `paid` exists yet is now stated in both places rather
than in one.

**The proof register called correct charges wrong.** expected_gross_cents
used the CUSTOMER's rate, which is zero under reverse charge, against
the domestic gross Stripe actually took — so matches_catalogue was false
for every EU business sale charged exactly the advertised amount, and
for every renewal on a contract with a module, which was held against
`price_cents` alone. It compares against TaxTreatment::chargedCents()
and against the whole term now. Where no money moved, charged and the
flag are null instead of the expected figure agreeing with itself, and a
plan change records the terms with the pro-rata figures in the snapshot
rather than money that arrives again on Stripe's proration invoice.

**The seller's own VAT id was on the invoice, unlabelled**, between the
register number and the court. Labelled — and the footer's composition
moved out of the TCPDF method, because inside one the only way to read
what it says is to render a PDF and un-subset its fonts.

One test enshrined a figure the code does not produce: a reverse-charge
purchase recorded with no charged amount, asserting 17900/0/17900, where
OpenSubscription always passes the charged figure and a real one records
21480/0/21480. Another asserted that an upgrade click cancels a booked
downgrade.

Full suite: 1676 passed.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-07-30 01:30:24 +02:00
nexxo 0560ae743d feat(billing): Stripe owns the billing cycle, we own capability
A Product per plan family and a Price per priced row of a published version,
plus the four subscribed webhook events that were arriving and being ignored.

`stripe:sync-catalogue` mirrors the catalogue. Idempotent twice over: a stored
id is skipped, and each call carries an idempotency key derived from our own
row, so a crash between Stripe creating a Price and us recording its id gives
back the same object rather than a second one. That matters more here than
usual — a Stripe Price cannot be edited or deleted, so a duplicate is
permanent. Drafts are not synced at all: a version that has promised nothing
has no business in a price list. --dry-run shows what would be created.

The webhook now handles invoice.paid, invoice.payment_failed,
customer.subscription.updated and customer.subscription.deleted. It never
re-derives an amount: the invoice is the authority for what was charged, and
recomputing it from our catalogue would produce a second, disagreeing answer.
A failed payment is recorded and nothing else — Stripe runs the dunning
schedule, and cutting a customer off on the first failure would punish an
expired card as though it were a refusal to pay.

Only a cycle renewal moves the term on. Stripe also sends paid invoices for
prorations and manual charges, and the checkout's own invoice — which is
already in the register as the purchase, and would otherwise double every
customer's first payment.

Stripe does not guarantee delivery order, which is the source of most of the
care here:
- state changes are judged and written in one transaction with the row held,
  so two deliveries cannot both pass a check made on a stale copy;
- an older event never overwrites a newer one, with a rank breaking ties
  between events sharing a second — their timestamps have one-second
  resolution, and a failed attempt and its successful retry routinely do;
- a term is never shortened, and an ended contract is never revived;
- an event for a contract that does not exist yet is HELD and replayed the
  moment it appears, rather than acknowledged and forgotten. A cancellation
  dropped that way would leave us serving someone who had already left. Held
  rows that never match are pruned after a week.

Register entries are keyed by what they are about — the invoice, the attempt,
the subscription — with a unique index doing the work, because a check two
concurrent deliveries can both pass is not idempotency.

PlanChange is now documented as the preview shown before someone confirms, not
the invoice: Stripe's proration accounts for tax, existing credit and the exact
second the change lands, and ours cannot.

Not run against the live account — `stripe:sync-catalogue` creates objects that
cannot be deleted, so that is the owner's call. The dry run lists 12.

457 tests green. Codex review clean after seven rounds.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-07-26 13:36:28 +02:00
nexxo 7582df3de6 feat(billing): a proof register, and modules frozen at their booked price
Two things the contract could not answer on its own: what happened, and what
the customer's whole bill is.

`subscription_records` is append-only, one row per commercial event. Flat
columns for everything searched or relied on as evidence — event, customer,
subscription, plan family and version, term, net/tax/gross, currency, tax rate,
reverse charge, Stripe ids — PLUS a versioned JSON copy of the whole snapshot.
Not JSON alone: you cannot query it, and "the amount is in there somewhere" is
poor evidence. Copied, not joined, so a row still answers after the customer,
the plan or the version have gone.

The flat columns describe the TRANSACTION. Gross is what was actually taken;
net and tax are that gross split by the rate that applied on the day. A
discount lowers the taxable amount rather than creating negative VAT, and a
free checkout is recorded as free instead of as paid in full. What was agreed
sits beside it in the snapshot, so a charge that differs from the catalogue is
preserved as a question rather than reconciled away.

The register refuses to be rewritten, in bulk as well as one row at a time —
model events do not fire for `query()->update()`, which is exactly the shape a
careless data fix takes.

`subscription_addons` carries the owner's rule: a customer's total is their
subscription plus their modules, and all of it is frozen at what was agreed.
Price protection covering only the plan would let a module quietly double for
someone who booked it two years ago. A module they have NOT booked is a sale
still to be made, at today's price — so the catalogue is consulted only for
what is not in this table. Several bookings of one module are summed rather
than reduced to one arbitrary row, or the page and the bill would disagree.

Concurrency: one order books one module, enforced by a unique index rather than
a lookup two retries can both pass; cancellation is an atomic claim; and each
booking commits with its own register entry, so a failure cannot leave a sale
without evidence and a retry that finds the booking cannot skip the event.

Verified in the browser: with the module raised from 29,00 € to 59,00 € in the
catalogue, the customer who booked it still sees 29,00 € and a total of
208,00 €, while a new customer is quoted 59,00 €.

436 tests green. Codex review clean after seven rounds.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-07-26 13:07:34 +02:00