5 Commits (2277dfe4cb7edcbeec2fc74ade23e1dbae544e34)

Author	SHA1	Message	Date
nexxo	f02e86769b	Charge the price the website shows, and hand a withdrawal back in full ... Stripe was charging the catalogue's NET figure while the document added the domestic rate on top: a customer quoted 214,80 paid 179,00 and was then invoiced for VAT nobody had collected. Under para 11(12) UStG that VAT is owed to the tax office whether or not it ever arrived, so every document issued created a liability against revenue that did not contain it. The Stripe Price now carries the GROSS figure. price_cents stays net - it is frozen onto every contract and PlanChange prorates against it, so redefining it would corrupt every pro-rata sum ever computed. Only the amount at the till moved, and it is formed by the one call TaxTreatment already answers for the price sheet and for the invoice, so displayed, charged and invoiced cannot drift apart. Stripe's automatic_tax is deliberately not used. TaxTreatment is the single tax authority here, and a second rate computed by Stripe would take 19 % from a German consumer while our document said 20 %. A Stripe Price cannot be edited, so a changed figure means a new Price and the old one archived - which stops it being SOLD and leaves every subscription already on it billing the old amount for ever. stripe:reprice-subscriptions is the second half, and a command of its own because it touches live money. A withdrawing consumer is refunded in full, as the owner decided. That is more generous than FAGG para 16 requires, and it makes the express-request consent the statute hinges on irrelevant - so the gate is gone rather than left looking load-bearing. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>	2026-07-29 22:42:02 +02:00
nexxo	6d7c2bdf35	Ask whether they are a consumer, and let one change their mind ... Three things the product owed its customers and did not have. **Who is on the other side.** There was no consumer/business flag anywhere, and `vat_id` was standing in for one — which it cannot: a business without a VAT number is an ordinary small business, and a consumer with one does not exist. It is asked at sign-up now, correctable in the portal, and NULL where nobody has been asked. Unknown is read as CONSUMER everywhere it decides a right, because that mistake costs us a refund while the other one takes a statutory right away from somebody who has it. Reverse charge asks the recorded type instead of the number: an explicit consumer is charged the domestic rate whatever `vat_id` says — previously they were not, and anyone could zero their own VAT by getting a number verified. An unrecorded type still falls back to the verified number, so no contract that is already running changes rate. **The fourteen-day right of withdrawal** (FAGG, §312g BGB), for consumers only, at every door: the window is stamped on the contract when it is concluded, the customer exercises it from the portal, an operator records one that arrived by telephone or post, and both go through one action that refuses a business customer on the server rather than by hiding a card. The money follows the paperwork rather than being computed beside it. The invoice is cancelled by a Storno with its own gapless number — nothing is ever edited or deleted — a new invoice states the pro-rata value of the service actually delivered (FAGG §16, by days over the term paid for), and the refund is exactly the difference between the two documents. Where the consumer never expressly asked for the service to begin at once, they owe nothing and the whole amount goes back. `StripeClient::refund()` is new, keyed so a retry cannot send the money twice. The service ends through EndInstanceService and the `cancellation_scheduled` machinery that was already there. **The cancel button for modules.** BookAddon::cancelAtPeriodEnd() had no caller in the interface at all, so a customer could book a recurring charge in two clicks and had no way to stop it. It is on the module card now, with the date it runs until and a way back while the cancellation is still pending — and putting a module back settles nothing, because the term it was cancelled for was paid for in advance. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>	2026-07-29 21:06:06 +02:00
nexxo	8f1630ba91	Bill a booked module every month, and put it on the invoice ... A module was never an item on the Stripe subscription, so it was charged in the month it was booked and never again. And the renewal document was written from our own contract snapshot, so it would not have said so even if the money had been taken. Two halves of one fault, closed together. Modules are items now. stripe:sync-catalogue mirrors a Product and a Price per module on both terms — a Stripe Price carries its own interval, and a booking frozen at an older figure needs its own Price, so they are keyed by module, amount, currency and interval in stripe_addon_prices. Booking adds an item with always_invoice: prorated by days AND charged there and then, which is the invoice the owner wants for a module booked mid-term. A second storage pack is a quantity on one item, not a second item. Cancelling takes the item off with no proration — no credit, and the next cycle is simply smaller — while the module itself is kept until the period end on subscription_addons.cancels_at and ended by clupilot:end-cancelled-addons. Documents are built from Stripe's own invoice lines. Stripe is what charged the customer; a document assembled from our figures would state a sum that is not the one taken. So every paid Stripe invoice gets one document with one number, idempotent on stripe_invoice_id — a cycle carrying package and every module together, a mid-period booking carrying just its prorated line, an upgrade carrying its proration. Only the wording is ours: each line is named from the catalogue rather than printed as a Price id, and a line nobody can name stays on the document under Stripe's own description and is logged. The checkout's own invoice is still the one exception; that purchase already has a document. Stripe being away never undoes a booking that has already reached the machine. The failure is parked on the contract in stripe_addon_sync and swept by the same clupilot:sync-stripe-subscriptions that retries a plan change, which finds its work from the bookings themselves rather than from the marker. A granted contract has no Stripe subscription and is not touched at all. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>	2026-07-29 20:22:02 +02:00
nexxo	35b312d5ef	Invoice every renewal, and tell Stripe when the package changes ... Two things Stripe was doing on its own, without us. **A renewal produced no invoice and no mail.** InvoiceMail went out from exactly one place — the first purchase — so a customer paying every month for a year received one invoice, for month one. Stripe already says when the money lands: invoice.paid with billing_reason subscription_cycle. What was missing was the document. A renewal has no Order behind it, and one was not invented for the occasion: an Order is something a customer bought, and writing a purchase nobody made would corrupt the record of what they have actually ordered. IssueInvoice::forBilledPeriod() issues from the CONTRACT instead, at its frozen net price, for the term Stripe billed. Idempotent against the Stripe invoice id, which is unique in the database rather than checked in PHP — and because the number is drawn inside the same transaction as the row, a redelivery takes its number back with it and the series keeps its sequence. Nothing in the paperwork can fail the webhook: issuing and mailing are both caught and logged, exactly as confirmByMail() does. Only a cycle renewal gets a document. The checkout's own invoice already has one; an upgrade's proration was worked out against Stripe's boundaries and would not match a document written from our snapshot; a charge raised by hand is for something this catalogue cannot describe. All three stay in the register, and are logged once as money no document of ours covers. **After a plan change, Stripe went on billing the old price.** There was no way to move a subscription onto another price at all, so a customer who upgraded paid for the smaller package every month afterwards. The client can now swap one, the item id it needs is learnt from Stripe's own events (and asked for once, for contracts older than the column), and the behaviour is chosen per direction: an upgrade settles immediately, so the cycle invoice stays exactly the contract price the renewal document states; a downgrade lands at the period boundary and settles nothing. A granted contract has no Stripe subscription and is left untouched. A change that reaches the machine and not Stripe is never rolled back — it is parked on the contract with the error and the behaviour it needed, logged as an error, and retried hourly by clupilot:sync-stripe-subscriptions. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>	2026-07-29 19:35:15 +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