feat(customer-portal): plan switching + add-product + terminate - #1
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…ription
Adds 4 customer-portal-scoped GraphQL operations so end users can manage
their subscriptions self-service from the hosted portal, without needing
admin intervention:
Resolver:
- customerPortalAvailablePlans(productKey?, excludeCurrent?) — lists plans
visible to the authenticated portal user. Filters by product prefix
(aistack-*, growth-*, memory-*, etc.) when productKey is set. When
excludeCurrent=true, omits plans the customer already has, which powers
the "Add a Product" cross-sell.
Mutations:
- changeCustomerPortalSubscriptionPlan(subscriptionId, planCode) — switches
an existing subscription to a different plan within the same product.
Calls Subscriptions::PlanUpgradeService which handles proration + Stripe
invoice generation automatically.
- createCustomerPortalSubscription(planCode) — adds a NEW subscription for
a product the customer doesn't yet have. External_id follows the
parent-app bridge convention: ${customer.external_id}-${productKey}.
- terminateCustomerPortalSubscription(subscriptionId) — cancels a single
subscription within a multi-product account; other products unchanged.
All four are scoped to the AuthenticableCustomerPortalUser context, so a
customer can only act on subscriptions they own. Errors normalize via the
existing result_error helper.
Powers Phase 2 of the ThinkFleet billing integration: unified Lago portal
as the single place customers manage all their cross-product subscriptions.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Companion PR: https://github.com/ThinkfleetAI/lago-front (Phase 2B). Adds 4 customer-portal GraphQL ops: customerPortalAvailablePlans query + change/create/terminate subscription mutations. Scoped to AuthenticableCustomerPortalUser. See PHASE_2_DESIGN.md in companion app repo. 🤖 Generated with Claude Code.