Closes the operator side of TIER_UPGRADES_DESIGN.md. With this in,
operators can force-change any license to any policy under the same
product (sideways, cross-NULL-rank, perpetual downgrades all
allowed) — and scheduled tier changes (e.g. recurring downgrades
recorded with future effective_at) actually fire at cycle boundaries.
New endpoint:
- POST /v1/admin/licenses/:id/change-tier
Body: { to_policy_slug, skip_payment: bool, reason?: string }
skip_payment=true (comp upgrade / support fix-up): apply
immediately, write a tier_changes row with proration=0 and
invoice_id=NULL, fire the license.tier_changed webhook, audit-log
with actor=admin_api_key.
skip_payment=false: same as buyer's /v1/upgrade — create a
provider invoice for the prorated charge, persist the local
invoice + a tier_changes row tied to it, return the checkout URL.
Operator forwards it to the buyer through whatever channel they
use. Webhook applies on settle.
Bypasses ladder rules entirely (sideways, perpetual downgrade,
recurring → perpetual all OK). Same-product / different-policy /
active-target checks still apply.
QuoteMode refactor (src/upgrades.rs):
- compute_upgrade_quote now takes QuoteMode::{Buyer, Admin}.
- Buyer mode = strict ladder rules (per Phase 2).
- Admin mode = bypass ladder + downgrade gates; infer direction
from rank-diff if both ranked, else from price-diff.
- Buyer endpoint passes Buyer; admin endpoint passes Admin.
Renewal-worker hook (src/subscriptions.rs):
- Before pricing each renewal cycle, the worker calls
apply_pending_tier_changes(state, sub). This finds tier_changes
rows for the sub's license where effective_at <= now AND
invoice_id IS NULL AND license.policy_id != to_policy_id (i.e.
scheduled comp/admin changes that haven't been applied yet).
Each pending change is applied via apply_tier_change (which
also rewrites the sub's policy_id / listed_value / period_days).
After applying, the worker re-fetches the sub and prices the
next invoice at the NEW tier's listed_value.
- This is what makes recurring downgrades actually take effect at
the cycle boundary (admin records "Pro → Standard at next
renewal", the worker applies it, the new invoice bills at
Standard's price).
- Idempotent: re-running the hook on a license already on the
target tier finds zero pending rows (the policy_id != check
filters them out).
Tests (+5, total now 77):
- admin_change_tier_skip_payment_applies_immediately — comp path
flips license + writes tier_change row with no invoice
- admin_change_tier_allows_perpetual_downgrade — the case the
buyer endpoint rejects with 400 "admin-only"
- admin_change_tier_rejects_zero_charge_paid_path — sideways
attempt with skip_payment=false hints at switching to true
- admin_change_tier_requires_admin_token — 401 without auth
- renewal_worker_applies_pending_tier_change_before_billing —
the headline behavior: a pending downgrade tier_change with
effective_at=now causes the next renewal to bill at the new
(lower) tier's price, NOT the old one. Uses a CapturingProvider
mock that stashes the last sat amount it saw so the assertion
is on what the worker actually billed.
Grant
c5d716a6d4