460 lines
23 KiB
JavaScript
460 lines
23 KiB
JavaScript
import http from 'node:http'
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/**
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* Stripe-Nachbau für Tests. stripe-node spricht ihn über config.stripe.apiBase (STRIPE_API_BASE)
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* an. Objekte werden vorab in die Maps gelegt; jeder Aufruf landet in calls als
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* { method, path, query, body } (Formular-Schlüssel flach, z. B. 'items[0][price]').
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*
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* Abo-Änderungen (F17): POST /v1/subscriptions/:id mischt items[i][id|price|quantity|deleted] und
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* metadata (leerer Wert löscht) in das gespeicherte Abo; st.nextSubscriptionUpdate wird einmalig nur
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* in die nächste Antwort gemischt (z. B. latest_invoice). Enthält er pending_update, bleibt das Abo wie bei
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* Stripe unverändert und trägt pending_update (ausstehende Aktualisierung, Task 9), bis st.applyPendingUpdate(id)
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* die Änderung übernimmt oder st.expirePendingUpdate(id) sie verwirft. Wie Stripe: mit
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* payment_behavior=pending_if_incomplete nur die dafür erlaubten Parameter, Metadaten-Schlüssel höchstens 40
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* und Werte höchstens 500 Zeichen. Rechnungen: GET /v1/invoices/:id bettet wie Stripe höchstens 10 Zeilen ein,
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* GET /v1/invoices/:id/lines blättert (limit, starting_after);
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* POST /v1/invoices/create_preview liefert st.invoicePreview (Objekt, oder Funktion des Aufruf-Bodys).
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* Listen (Finanzen): GET /v1/invoices (expand data.customer ersetzt customer durch das Objekt aus st.customers,
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* sofern vorhanden) und GET /v1/payouts (st.payouts) blaettern wie Stripe mit limit (hoechstens 100) und
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* starting_after samt has_more; die Reihenfolge ist die Einfuegereihenfolge der Map.
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*/
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// Parameter, die Stripe bei ausstehenden Aktualisierungen annimmt (docs.stripe.com/billing/subscriptions/
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// pending-updates, "Unterstützte Attribute", geprüft am 28.09.2026); items[i][id] verweist auf die Position
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const PENDING_UPDATE_PARAMS = new Set([
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'expand', 'payment_behavior', 'proration_behavior', 'proration_date', 'billing_cycle_anchor', 'items', 'trial_end',
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'trial_from_plan', 'metadata', 'discounts', 'cancel_at_period_end', 'coupon', 'promotion_code', 'add_invoice_items',
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])
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const PENDING_UPDATE_ITEM_PARAMS = new Set(['id', 'price', 'quantity', 'discounts'])
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export async function startFakeStripe() {
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const subscriptions = new Map()
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const prices = new Map()
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const invoices = new Map()
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const products = new Map()
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const coupons = new Map()
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const billingPortalConfigurations = new Map()
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const customers = new Map()
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const payouts = new Map()
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const checkoutSessions = new Map()
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// Abo-Aenderungen, die Stripe bis zur Zahlung zurueckhaelt (pending_update), je Abo-ID
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const pendingUpdates = new Map()
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const calls = []
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let seq = 0
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let nextSubscriptionUpdate = null
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let invoicePreview = null
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// Eingeplanter Fehler (failNext, F41d): der naechste passende Aufruf scheitert einmalig
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let pendingFailure = null
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const nextId = (prefix) => `${prefix}_test_${(seq += 1)}`
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const matchesPath = (path, pathname) => (path instanceof RegExp ? path.test(pathname) : path === pathname)
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const plannedFailure = (method, pathname) => {
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if (!pendingFailure) return null
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if (pendingFailure.method && pendingFailure.method !== method) return null
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if (pendingFailure.path && !matchesPath(pendingFailure.path, pathname)) return null
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if (pendingFailure.after > 0) {
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pendingFailure.after -= 1
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return null
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}
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const { status, message } = pendingFailure
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pendingFailure = null
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return [status, { error: { type: status >= 500 ? 'api_error' : 'invalid_request_error', message: message || `Nachbau: eingeplanter Fehler ${status}` } }]
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}
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const flat = (params) => Object.fromEntries(params.entries())
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const noSuch = (what, id) => [404, { error: { type: 'invalid_request_error', code: 'resource_missing', message: `No such ${what}: '${id}'` } }]
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const invalid = (param, message) => [400, { error: { type: 'invalid_request_error', param, message } }]
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const listOf = (data) => ({ object: 'list', data, has_more: false, url: '/v1/list' })
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// Rechnungszeilen mit IDs (fuer starting_after), wie Stripe sie liefert; die Quelle behaelt alle Zeilen
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const invoiceLinesOf = (invoiceId) =>
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(invoices.get(invoiceId)?.lines?.data || []).map((line, i) => ({ id: `li_${invoiceId}_${i + 1}`, object: 'line_item', ...line }))
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const EMBEDDED_LINES = 10
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// Listenantwort wie Stripe: limit (Standard 10, hoechstens 100) und starting_after (ID des letzten Eintrags der Vorseite)
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const pageOf = (items, query, url) => {
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const limit = Math.min(Number(query.get('limit')) || 10, 100)
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const after = query.get('starting_after')
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const afterIndex = after ? items.findIndex((item) => item.id === after) : -1
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if (after && afterIndex < 0) return invalid('starting_after', `No such object: '${after}'`)
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const start = afterIndex + 1
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return [200, { object: 'list', data: items.slice(start, start + limit), has_more: start + limit < items.length, url }]
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}
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const readBody = (req) =>
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new Promise((resolve) => {
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let raw = ''
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req.on('data', (chunk) => (raw += chunk))
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req.on('end', () => resolve(new URLSearchParams(raw)))
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})
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// Stripe serialisiert verschachtelte Parameter (z. B. recurring[interval]=month) als flache
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// Formularschluessel. Fuer die Routen selbst wieder zu einem verschachtelten Objekt zusammenbauen.
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const unflatten = (params) => {
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const root = {}
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for (const [rawKey, value] of params.entries()) {
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const path = rawKey.match(/[^[\]]+/g) || [rawKey]
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let node = root
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path.forEach((key, i) => {
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if (i === path.length - 1) {
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node[key] = value
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} else {
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if (!(key in node)) node[key] = /^\d+$/.test(path[i + 1]) ? [] : {}
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node = node[key]
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}
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})
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}
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return root
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}
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const route = (method, path, query, body) => {
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let m
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if (method === 'GET' && (m = path.match(/^\/v1\/subscriptions\/([^/]+)$/))) {
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return subscriptions.has(m[1]) ? [200, subscriptions.get(m[1])] : noSuch('subscription', m[1])
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}
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if (method === 'POST' && (m = path.match(/^\/v1\/subscriptions\/([^/]+)$/))) {
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const existing = subscriptions.get(m[1])
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if (!existing) return noSuch('subscription', m[1])
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const data = unflatten(body)
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// Wie Stripe: mit pending_if_incomplete nur die Parameter, die ausstehende Aktualisierungen kennen
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if (data.payment_behavior === 'pending_if_incomplete') {
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const param =
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Object.keys(data).find((key) => !PENDING_UPDATE_PARAMS.has(key)) ||
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(data.items || []).flatMap((entry, i) => Object.keys(entry).filter((key) => !PENDING_UPDATE_ITEM_PARAMS.has(key)).map((key) => `items[${i}][${key}]`))[0]
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if (param) return invalid(param, `Received unsupported parameter ${param} with payment_behavior=pending_if_incomplete.`)
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}
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// Wie Stripe: Metadaten-Schluessel hoechstens 40, Werte hoechstens 500 Zeichen
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for (const [key, value] of Object.entries(data.metadata || {})) {
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if (key.length > 40) return invalid(`metadata[${key}]`, 'Metadata keys can be at most 40 characters long.')
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if (String(value).length > 500) return invalid(`metadata[${key}]`, 'Metadata values can be at most 500 characters long.')
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}
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const items = (existing.items?.data || []).map((item) => ({ ...item }))
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for (const [i, entry] of (data.items || []).entries()) {
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if (entry.id) {
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// Vorhandene Position: Menge/Preis aendern oder entfernen
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const index = items.findIndex((item) => item.id === entry.id)
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if (index < 0) return invalid(`items[${i}][id]`, `No such subscription_item: '${entry.id}'`)
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if (entry.deleted === 'true') {
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items.splice(index, 1)
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continue
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}
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if (entry.price) {
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if (!prices.has(entry.price)) return invalid(`items[${i}][price]`, `No such price: '${entry.price}'`)
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items[index].price = prices.get(entry.price)
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}
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if (entry.quantity !== undefined) items[index].quantity = Number(entry.quantity)
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} else if (entry.price) {
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// Neue Position per Preis; wie Stripe: derselbe Preis hoechstens einmal je Abo
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if (!prices.has(entry.price)) return invalid(`items[${i}][price]`, `No such price: '${entry.price}'`)
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if (items.some((item) => item.price?.id === entry.price)) {
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return invalid(`items[${i}][price]`, 'You cannot combine multiple subscription items with the same price.')
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}
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items.push({
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id: nextId('si'),
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object: 'subscription_item',
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quantity: entry.quantity !== undefined ? Number(entry.quantity) : 1,
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price: prices.get(entry.price),
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})
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} else {
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return invalid(`items[${i}]`, 'Each subscription item must have an id or a price.')
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}
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}
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// Metadaten wie bei Stripe zusammenfuehren: leerer Wert loescht den Schluessel
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const metadata = { ...(existing.metadata || {}) }
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for (const [key, value] of Object.entries(data.metadata || {})) {
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if (value === '') delete metadata[key]
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else metadata[key] = value
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}
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const updated = { ...existing, items: { object: 'list', ...(existing.items || {}), data: items }, metadata }
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if (data.cancel_at_period_end !== undefined) updated.cancel_at_period_end = data.cancel_at_period_end === 'true'
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if (data.cancel_at !== undefined) updated.cancel_at = data.cancel_at === '' ? null : Number(data.cancel_at)
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// Einmaliger Zusatz nur fuer diese Antwort (pending_update, latest_invoice, ...), nicht gespeichert
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const extra = nextSubscriptionUpdate
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nextSubscriptionUpdate = null
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if (extra?.pending_update) {
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// Zahlung nicht erfolgt (Task 9): Stripe haelt die Aenderung in pending_update zurueck, das Abo bleibt
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// unveraendert und traegt pending_update, bis die Rechnung bezahlt ist (applyPendingUpdate) oder die
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// Aenderung verfaellt (expirePendingUpdate)
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pendingUpdates.set(m[1], updated)
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subscriptions.set(m[1], { ...existing, pending_update: extra.pending_update })
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return [200, { ...existing, ...extra }]
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}
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subscriptions.set(m[1], updated)
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return [200, extra ? { ...updated, ...extra } : updated]
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}
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if (method === 'GET' && (m = path.match(/^\/v1\/prices\/([^/]+)$/))) {
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return prices.has(m[1]) ? [200, prices.get(m[1])] : noSuch('price', m[1])
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}
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if (method === 'GET' && path === '/v1/prices') {
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const keys = [...query.entries()].filter(([k]) => /^lookup_keys\[\d*\]$/.test(k)).map(([, v]) => v)
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const active = query.get('active')
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const found = [...prices.values()].filter(
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(p) => (!keys.length || keys.includes(p.lookup_key)) && (active === null || String(p.active !== false) === active)
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)
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return [200, listOf(found)]
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}
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if (method === 'POST' && path === '/v1/prices') {
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const data = unflatten(body)
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// Wie echtes Stripe: ein lookup_key darf nur an einem aktiven Preis gleichzeitig haengen
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// (Fix round 1, Important 1 - haertet den Nachbau, ensurePrice fragt vorher ohnehin per GET)
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if (data.lookup_key) {
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const clash = [...prices.values()].find((p) => p.lookup_key === data.lookup_key && p.active !== false)
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if (clash) {
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return [400, { error: { type: 'invalid_request_error', param: 'lookup_key', message: `An active price already exists for lookup_key: '${data.lookup_key}'.` } }]
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}
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}
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const obj = {
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id: nextId('price'),
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object: 'price',
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active: true,
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product: data.product,
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currency: data.currency || 'eur',
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unit_amount: data.unit_amount != null ? Number(data.unit_amount) : null,
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recurring: data.recurring ? { interval: data.recurring.interval } : null,
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tax_behavior: data.tax_behavior || null,
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lookup_key: data.lookup_key || null,
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nickname: data.nickname || null,
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}
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prices.set(obj.id, obj)
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return [200, obj]
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}
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if (method === 'GET' && path === '/v1/invoices') {
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const expandCustomer = [...query.entries()].some(([k, v]) => k.startsWith('expand') && v === 'data.customer')
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const all = [...invoices.values()].map((inv) =>
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expandCustomer && typeof inv.customer === 'string' && customers.has(inv.customer) ? { ...inv, customer: customers.get(inv.customer) } : inv
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)
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return pageOf(all, query, '/v1/invoices')
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}
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if (method === 'GET' && path === '/v1/payouts') {
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return pageOf([...payouts.values()], query, '/v1/payouts')
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}
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if (method === 'GET' && (m = path.match(/^\/v1\/invoices\/([^/]+)$/))) {
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if (!invoices.has(m[1])) return noSuch('invoice', m[1])
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// Wie Stripe: hoechstens 10 Zeilen eingebettet, weitere ueber GET /v1/invoices/:id/lines (has_more)
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const lines = invoiceLinesOf(m[1])
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return [
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200,
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{
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...invoices.get(m[1]),
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lines: { object: 'list', data: lines.slice(0, EMBEDDED_LINES), has_more: lines.length > EMBEDDED_LINES, url: `/v1/invoices/${m[1]}/lines` },
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},
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]
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}
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if (method === 'GET' && (m = path.match(/^\/v1\/invoices\/([^/]+)\/lines$/))) {
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if (!invoices.has(m[1])) return noSuch('invoice', m[1])
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const lines = invoiceLinesOf(m[1])
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const limit = Math.min(Number(query.get('limit')) || 10, 100)
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const after = query.get('starting_after')
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const afterIndex = after ? lines.findIndex((line) => line.id === after) : -1
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if (after && afterIndex < 0) return invalid('starting_after', `No such line item: '${after}'`)
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const start = afterIndex + 1
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return [200, { object: 'list', data: lines.slice(start, start + limit), has_more: start + limit < lines.length, url: `/v1/invoices/${m[1]}/lines` }]
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}
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if (method === 'POST' && path === '/v1/invoices/create_preview') {
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const data = unflatten(body)
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if (data.subscription && !subscriptions.has(data.subscription)) return noSuch('subscription', data.subscription)
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const preview = typeof invoicePreview === 'function' ? invoicePreview(data) : invoicePreview
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return [200, preview || { object: 'invoice', lines: { object: 'list', data: [], has_more: false }, amount_due: 0, subtotal: 0, total: 0 }]
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}
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// scripts/stripe-products.mjs --pruefen liest das Produkt zurueck (Beschreibung, Bild)
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if (method === 'GET' && (m = path.match(/^\/v1\/products\/([^/]+)$/))) {
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return products.has(m[1]) ? [200, products.get(m[1])] : noSuch('product', m[1])
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}
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if (method === 'GET' && path === '/v1/products') {
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const active = query.get('active')
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return [200, listOf([...products.values()].filter((p) => active === null || String(p.active !== false) === active))]
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}
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if (method === 'POST' && path === '/v1/products') {
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const data = unflatten(body)
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const obj = {
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id: nextId('prod'),
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object: 'product',
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active: true,
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name: data.name || '',
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description: data.description ?? null,
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statement_descriptor: data.statement_descriptor ?? null,
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images: data.images || [],
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metadata: data.metadata || {},
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}
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products.set(obj.id, obj)
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return [200, obj]
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}
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if (method === 'GET' && (m = path.match(/^\/v1\/coupons\/([^/]+)$/))) {
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return coupons.has(m[1]) ? [200, coupons.get(m[1])] : noSuch('coupon', m[1])
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}
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if (method === 'POST' && path === '/v1/coupons') {
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const data = unflatten(body)
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const id = data.id || nextId('coupon')
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// Wie echtes Stripe: Name auf 40 Zeichen begrenzt, IDs eindeutig (Fix round 1, Important 1)
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if (data.name && data.name.length > 40) {
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return [400, { error: { type: 'invalid_request_error', param: 'name', message: 'Name must be no more than 40 characters.' } }]
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}
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if (coupons.has(id)) {
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return [400, { error: { type: 'invalid_request_error', message: `Coupon with ID '${id}' already exists.` } }]
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}
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const obj = {
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id,
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object: 'coupon',
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valid: true,
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name: data.name || null,
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amount_off: data.amount_off != null ? Number(data.amount_off) : null,
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currency: data.currency || null,
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duration: data.duration || 'once',
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metadata: data.metadata || {},
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}
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coupons.set(id, obj)
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return [200, obj]
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}
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// Checkout (Neuabschluss): Kunde suchen/anlegen, Checkout-Sitzung anlegen (F10)
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if (method === 'GET' && path === '/v1/customers/search') {
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// Suchsyntax wie in getOrCreateStripeCustomer: metadata['webklarCustomerId']:'c1'
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const m2 = (query.get('query') || '').match(/metadata\['(\w+)'\]:'([^']*)'/)
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const found = [...customers.values()].filter((c) => !m2 || c.metadata?.[m2[1]] === m2[2])
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return [200, { object: 'search_result', data: found, has_more: false, url: '/v1/customers/search' }]
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}
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if (method === 'POST' && path === '/v1/customers') {
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const data = unflatten(body)
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const obj = {
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id: nextId('cus'),
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object: 'customer',
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email: data.email ?? null,
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name: data.name ?? null,
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address: data.address ?? null,
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invoice_settings: data.invoice_settings || {},
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metadata: data.metadata || {},
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}
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customers.set(obj.id, obj)
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return [200, obj]
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}
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if (method === 'POST' && path === '/v1/checkout/sessions') {
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const data = unflatten(body)
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const id = nextId('cs')
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const obj = {
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id,
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object: 'checkout.session',
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url: `https://checkout.stripe.test/c/pay/${id}`,
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mode: data.mode || 'payment',
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customer: data.customer ?? null,
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client_reference_id: data.client_reference_id ?? null,
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subscription: null,
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metadata: data.metadata || {},
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subscription_data: data.subscription_data || {},
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status: 'open',
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payment_status: 'unpaid',
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invoice: null,
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}
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checkoutSessions.set(id, obj)
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return [200, obj]
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}
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// Sitzung abrufen (Funktions-Checkout); expand=invoice ersetzt die Rechnungs-ID durch das Objekt.
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// Tests setzen status/payment_status/invoice direkt im Objekt aus st.checkoutSessions.
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if (method === 'GET' && (m = path.match(/^\/v1\/checkout\/sessions\/([^/]+)$/))) {
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const found = checkoutSessions.get(m[1])
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if (!found) return noSuch('checkout.session', m[1])
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const expandInvoice = [...query.entries()].some(([k, v]) => k.startsWith('expand') && v === 'invoice')
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const inv = typeof found.invoice === 'string' ? invoices.get(found.invoice) : null
|
|
return [200, expandInvoice && inv ? { ...found, invoice: inv } : found]
|
|
}
|
|
if (method === 'GET' && path === '/v1/billing_portal/configurations') {
|
|
const active = query.get('active')
|
|
const found = [...billingPortalConfigurations.values()].filter(
|
|
(c) => active === null || String(c.active !== false) === active
|
|
)
|
|
return [200, listOf(found)]
|
|
}
|
|
if (method === 'POST' && path === '/v1/billing_portal/configurations') {
|
|
const data = unflatten(body)
|
|
const obj = {
|
|
id: nextId('bpc'),
|
|
object: 'billing_portal.configuration',
|
|
active: true,
|
|
business_profile: data.business_profile || {},
|
|
default_return_url: data.default_return_url || null,
|
|
features: data.features || {},
|
|
metadata: data.metadata || {},
|
|
}
|
|
billingPortalConfigurations.set(obj.id, obj)
|
|
return [200, obj]
|
|
}
|
|
if (method === 'POST' && (m = path.match(/^\/v1\/billing_portal\/configurations\/([^/]+)$/))) {
|
|
const existing = billingPortalConfigurations.get(m[1])
|
|
if (!existing) return noSuch('configuration', m[1])
|
|
const data = unflatten(body)
|
|
const updated = {
|
|
...existing,
|
|
...data,
|
|
business_profile: { ...existing.business_profile, ...(data.business_profile || {}) },
|
|
features: { ...existing.features, ...(data.features || {}) },
|
|
metadata: { ...existing.metadata, ...(data.metadata || {}) },
|
|
}
|
|
billingPortalConfigurations.set(m[1], updated)
|
|
return [200, updated]
|
|
}
|
|
return [404, { error: { type: 'invalid_request_error', message: `No such route: ${method} ${path}` } }]
|
|
}
|
|
|
|
const server = http.createServer(async (req, res) => {
|
|
const url = new URL(req.url, 'http://127.0.0.1')
|
|
const body = await readBody(req)
|
|
calls.push({ method: req.method, path: url.pathname, query: flat(url.searchParams), body: flat(body) })
|
|
const [status, payload] = plannedFailure(req.method, url.pathname) || route(req.method, url.pathname, url.searchParams, body)
|
|
res.writeHead(status, { 'Content-Type': 'application/json', 'Request-Id': `req_test_${calls.length}` })
|
|
res.end(JSON.stringify(payload))
|
|
})
|
|
await new Promise((resolve) => server.listen(0, '127.0.0.1', resolve))
|
|
|
|
return {
|
|
url: `http://127.0.0.1:${server.address().port}`,
|
|
calls,
|
|
subscriptions,
|
|
prices,
|
|
invoices,
|
|
products,
|
|
coupons,
|
|
billingPortalConfigurations,
|
|
customers,
|
|
payouts,
|
|
checkoutSessions,
|
|
/**
|
|
* Einmalig in die naechste Antwort von POST /v1/subscriptions/:id gemischt (z. B. latest_invoice). Mit
|
|
* pending_update bleibt das Abo wie bei Stripe unveraendert (und traegt pending_update), bis
|
|
* applyPendingUpdate(id) die Aenderung uebernimmt oder expirePendingUpdate(id) sie verwirft.
|
|
*/
|
|
get nextSubscriptionUpdate() {
|
|
return nextSubscriptionUpdate
|
|
},
|
|
set nextSubscriptionUpdate(value) {
|
|
nextSubscriptionUpdate = value
|
|
},
|
|
/** Zurueckgehaltene Aenderung uebernehmen (= Wechselrechnung bezahlt, Stripe wendet pending_update an). */
|
|
applyPendingUpdate(id) {
|
|
const updated = pendingUpdates.get(id)
|
|
if (!updated) throw new Error(`Stripe-Nachbau: keine ausstehende Aktualisierung fuer ${id}`)
|
|
pendingUpdates.delete(id)
|
|
const applied = { ...updated, pending_update: null }
|
|
subscriptions.set(id, applied)
|
|
return applied
|
|
},
|
|
/** Zurueckgehaltene Aenderung verfaellt (Stripe storniert die Rechnung und verwirft pending_update). */
|
|
expirePendingUpdate(id) {
|
|
if (!pendingUpdates.has(id)) throw new Error(`Stripe-Nachbau: keine ausstehende Aktualisierung fuer ${id}`)
|
|
pendingUpdates.delete(id)
|
|
subscriptions.set(id, { ...subscriptions.get(id), pending_update: null })
|
|
},
|
|
/** Antwort von POST /v1/invoices/create_preview: Objekt oder Funktion (body) => Objekt; null = leere Vorschau. */
|
|
get invoicePreview() {
|
|
return invoicePreview
|
|
},
|
|
set invoicePreview(value) {
|
|
invoicePreview = value
|
|
},
|
|
/**
|
|
* Naechster passender Aufruf (method, path als String oder RegExp) scheitert einmalig mit status; after
|
|
* passende Aufrufe gehen vorher durch. Der Aufruf steht trotzdem in calls. 4xx wiederholt stripe-node
|
|
* nicht, 5xx schon (maxNetworkRetries) - fuer "Stripe lehnt ab" also 4xx einplanen.
|
|
*/
|
|
failNext: ({ method = null, path = null, status = 500, message = '', after = 0 }) => {
|
|
pendingFailure = { method, path, status, message, after }
|
|
},
|
|
close: () => new Promise((resolve) => server.close(resolve)),
|
|
}
|
|
}
|