Zusatzspeicher: Plus sofort anteilig, Minus zum Monatsende, Aufgaben für konsoleH

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

test/support/fakeStripe.js

@@ -4,6 +4,12 @@ import http from 'node:http'
  * Stripe-Nachbau für Tests. stripe-node spricht ihn über config.stripe.apiBase (STRIPE_API_BASE)
  * an. Objekte werden vorab in die Maps gelegt; jeder Aufruf landet in calls als
  * { method, path, query, body } (Formular-Schlüssel flach, z. B. 'items[0][price]').
+ *
+ * Abo-Änderungen (F17): POST /v1/subscriptions/:id mischt items[i][id|price|quantity|deleted] und
+ * metadata (leerer Wert löscht) in das gespeicherte Abo; st.nextSubscriptionUpdate wird einmalig nur
+ * in die nächste Antwort gemischt (z. B. pending_update, latest_invoice). Rechnungen: GET /v1/invoices/:id
+ * bettet wie Stripe höchstens 10 Zeilen ein, GET /v1/invoices/:id/lines blättert (limit, starting_after);
+ * POST /v1/invoices/create_preview liefert st.invoicePreview (Objekt, oder Funktion des Aufruf-Bodys).
  */
 export async function startFakeStripe() {
   const subscriptions = new Map()
@@ -16,11 +22,18 @@ export async function startFakeStripe() {
   const checkoutSessions = new Map()
   const calls = []
   let seq = 0
+  let nextSubscriptionUpdate = null
+  let invoicePreview = null
   const nextId = (prefix) => `${prefix}_test_${(seq += 1)}`
 
   const flat = (params) => Object.fromEntries(params.entries())
   const noSuch = (what, id) => [404, { error: { type: 'invalid_request_error', code: 'resource_missing', message: `No such ${what}: '${id}'` } }]
+  const invalid = (param, message) => [400, { error: { type: 'invalid_request_error', param, message } }]
   const listOf = (data) => ({ object: 'list', data, has_more: false, url: '/v1/list' })
+  // Rechnungszeilen mit IDs (fuer starting_after), wie Stripe sie liefert; die Quelle behaelt alle Zeilen
+  const invoiceLinesOf = (invoiceId) =>
+    (invoices.get(invoiceId)?.lines?.data || []).map((line, i) => ({ id: `li_${invoiceId}_${i + 1}`, object: 'line_item', ...line }))
+  const EMBEDDED_LINES = 10
 
   const readBody = (req) =>
     new Promise((resolve) => {
@@ -53,6 +66,56 @@ export async function startFakeStripe() {
     if (method === 'GET' && (m = path.match(/^\/v1\/subscriptions\/([^/]+)$/))) {
       return subscriptions.has(m[1]) ? [200, subscriptions.get(m[1])] : noSuch('subscription', m[1])
     }
+    if (method === 'POST' && (m = path.match(/^\/v1\/subscriptions\/([^/]+)$/))) {
+      const existing = subscriptions.get(m[1])
+      if (!existing) return noSuch('subscription', m[1])
+      const data = unflatten(body)
+      const items = (existing.items?.data || []).map((item) => ({ ...item }))
+      for (const [i, entry] of (data.items || []).entries()) {
+        if (entry.id) {
+          // Vorhandene Position: Menge/Preis aendern oder entfernen
+          const index = items.findIndex((item) => item.id === entry.id)
+          if (index < 0) return invalid(`items[${i}][id]`, `No such subscription_item: '${entry.id}'`)
+          if (entry.deleted === 'true') {
+            items.splice(index, 1)
+            continue
+          }
+          if (entry.price) {
+            if (!prices.has(entry.price)) return invalid(`items[${i}][price]`, `No such price: '${entry.price}'`)
+            items[index].price = prices.get(entry.price)
+          }
+          if (entry.quantity !== undefined) items[index].quantity = Number(entry.quantity)
+        } else if (entry.price) {
+          // Neue Position per Preis; wie Stripe: derselbe Preis hoechstens einmal je Abo
+          if (!prices.has(entry.price)) return invalid(`items[${i}][price]`, `No such price: '${entry.price}'`)
+          if (items.some((item) => item.price?.id === entry.price)) {
+            return invalid(`items[${i}][price]`, 'You cannot combine multiple subscription items with the same price.')
+          }
+          items.push({
+            id: nextId('si'),
+            object: 'subscription_item',
+            quantity: entry.quantity !== undefined ? Number(entry.quantity) : 1,
+            price: prices.get(entry.price),
+          })
+        } else {
+          return invalid(`items[${i}]`, 'Each subscription item must have an id or a price.')
+        }
+      }
+      // Metadaten wie bei Stripe zusammenfuehren: leerer Wert loescht den Schluessel
+      const metadata = { ...(existing.metadata || {}) }
+      for (const [key, value] of Object.entries(data.metadata || {})) {
+        if (value === '') delete metadata[key]
+        else metadata[key] = value
+      }
+      const updated = { ...existing, items: { object: 'list', ...(existing.items || {}), data: items }, metadata }
+      if (data.cancel_at_period_end !== undefined) updated.cancel_at_period_end = data.cancel_at_period_end === 'true'
+      if (data.cancel_at !== undefined) updated.cancel_at = data.cancel_at === '' ? null : Number(data.cancel_at)
+      subscriptions.set(m[1], updated)
+      // Einmaliger Zusatz nur fuer diese Antwort (pending_update, latest_invoice, ...), nicht gespeichert
+      const response = nextSubscriptionUpdate ? { ...updated, ...nextSubscriptionUpdate } : updated
+      nextSubscriptionUpdate = null
+      return [200, response]
+    }
     if (method === 'GET' && (m = path.match(/^\/v1\/prices\/([^/]+)$/))) {
       return prices.has(m[1]) ? [200, prices.get(m[1])] : noSuch('price', m[1])
     }
@@ -90,7 +153,32 @@ export async function startFakeStripe() {
       return [200, obj]
     }
     if (method === 'GET' && (m = path.match(/^\/v1\/invoices\/([^/]+)$/))) {
-      return invoices.has(m[1]) ? [200, invoices.get(m[1])] : noSuch('invoice', m[1])
+      if (!invoices.has(m[1])) return noSuch('invoice', m[1])
+      // Wie Stripe: hoechstens 10 Zeilen eingebettet, weitere ueber GET /v1/invoices/:id/lines (has_more)
+      const lines = invoiceLinesOf(m[1])
+      return [
+        200,
+        {
+          ...invoices.get(m[1]),
+          lines: { object: 'list', data: lines.slice(0, EMBEDDED_LINES), has_more: lines.length > EMBEDDED_LINES, url: `/v1/invoices/${m[1]}/lines` },
+        },
+      ]
+    }
+    if (method === 'GET' && (m = path.match(/^\/v1\/invoices\/([^/]+)\/lines$/))) {
+      if (!invoices.has(m[1])) return noSuch('invoice', m[1])
+      const lines = invoiceLinesOf(m[1])
+      const limit = Math.min(Number(query.get('limit')) || 10, 100)
+      const after = query.get('starting_after')
+      const afterIndex = after ? lines.findIndex((line) => line.id === after) : -1
+      if (after && afterIndex < 0) return invalid('starting_after', `No such line item: '${after}'`)
+      const start = afterIndex + 1
+      return [200, { object: 'list', data: lines.slice(start, start + limit), has_more: start + limit < lines.length, url: `/v1/invoices/${m[1]}/lines` }]
+    }
+    if (method === 'POST' && path === '/v1/invoices/create_preview') {
+      const data = unflatten(body)
+      if (data.subscription && !subscriptions.has(data.subscription)) return noSuch('subscription', data.subscription)
+      const preview = typeof invoicePreview === 'function' ? invoicePreview(data) : invoicePreview
+      return [200, preview || { object: 'invoice', lines: { object: 'list', data: [], has_more: false }, amount_due: 0, subtotal: 0, total: 0 }]
     }
     // scripts/stripe-products.mjs --pruefen liest das Produkt zurueck (Beschreibung, Bild)
     if (method === 'GET' && (m = path.match(/^\/v1\/products\/([^/]+)$/))) {
@@ -234,6 +322,20 @@ export async function startFakeStripe() {
     billingPortalConfigurations,
     customers,
     checkoutSessions,
+    /** Einmalig in die naechste Antwort von POST /v1/subscriptions/:id gemischt (z. B. pending_update). */
+    get nextSubscriptionUpdate() {
+      return nextSubscriptionUpdate
+    },
+    set nextSubscriptionUpdate(value) {
+      nextSubscriptionUpdate = value
+    },
+    /** Antwort von POST /v1/invoices/create_preview: Objekt oder Funktion (body) => Objekt; null = leere Vorschau. */
+    get invoicePreview() {
+      return invoicePreview
+    },
+    set invoicePreview(value) {
+      invoicePreview = value
+    },
     close: () => new Promise((resolve) => server.close(resolve)),
   }
 }