Abo-API: Bestellung je Produkt, Katalog, Speicherstand, Wechsel-Möglichkeit

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

test/support/fakeStripe.js

@@ -12,6 +12,8 @@ export async function startFakeStripe() {
   const products = new Map()
   const coupons = new Map()
   const billingPortalConfigurations = new Map()
+  const customers = new Map()
+  const checkoutSessions = new Map()
   const calls = []
   let seq = 0
   const nextId = (prefix) => `${prefix}_test_${(seq += 1)}`
@@ -115,6 +117,44 @@ export async function startFakeStripe() {
       coupons.set(id, obj)
       return [200, obj]
     }
+    // Checkout (Neuabschluss): Kunde suchen/anlegen, Checkout-Sitzung anlegen (F10)
+    if (method === 'GET' && path === '/v1/customers/search') {
+      // Suchsyntax wie in getOrCreateStripeCustomer: metadata['webklarCustomerId']:'c1'
+      const m2 = (query.get('query') || '').match(/metadata\['(\w+)'\]:'([^']*)'/)
+      const found = [...customers.values()].filter((c) => !m2 || c.metadata?.[m2[1]] === m2[2])
+      return [200, { object: 'search_result', data: found, has_more: false, url: '/v1/customers/search' }]
+    }
+    if (method === 'POST' && path === '/v1/customers') {
+      const data = unflatten(body)
+      const obj = {
+        id: nextId('cus'),
+        object: 'customer',
+        email: data.email ?? null,
+        name: data.name ?? null,
+        address: data.address ?? null,
+        invoice_settings: data.invoice_settings || {},
+        metadata: data.metadata || {},
+      }
+      customers.set(obj.id, obj)
+      return [200, obj]
+    }
+    if (method === 'POST' && path === '/v1/checkout/sessions') {
+      const data = unflatten(body)
+      const id = nextId('cs')
+      const obj = {
+        id,
+        object: 'checkout.session',
+        url: `https://checkout.stripe.test/c/pay/${id}`,
+        mode: data.mode || 'payment',
+        customer: data.customer ?? null,
+        client_reference_id: data.client_reference_id ?? null,
+        subscription: null,
+        metadata: data.metadata || {},
+        subscription_data: data.subscription_data || {},
+      }
+      checkoutSessions.set(id, obj)
+      return [200, obj]
+    }
     if (method === 'GET' && path === '/v1/billing_portal/configurations') {
       const active = query.get('active')
       const found = [...billingPortalConfigurations.values()].filter(
@@ -172,6 +212,8 @@ export async function startFakeStripe() {
     products,
     coupons,
     billingPortalConfigurations,
+    customers,
+    checkoutSessions,
     close: () => new Promise((resolve) => server.close(resolve)),
   }
 }