Before, buying a plan immediately switched the tier and stacked the duration.
Now a purchase made while the café still has paid coverage is QUEUED to start
when the current coverage ends, and the owner can cancel a queued one.
Model:
- SubscriptionPayment gains EffectiveFrom/EffectiveTo; status gains Scheduled
(paid, queued) and Cancelled. EF migration AddSubscriptionScheduling (nullable).
BillingService:
- On payment completion, compute coverage end (latest of active expiry + furthest
queued period). If it is in the future → Scheduled (queued, café tier/expiry
untouched); else activate immediately as before. Periods chain correctly.
- GetStatusAsync lazily promotes any due queued period to active, and returns the
queue (QueuedPlans).
- CancelQueuedAsync cancels a Scheduled period (owner-only) and re-packs the queue
so later periods slide earlier. Active prepaid plan is never cut short; no
automatic refund (manual, per product decision).
- Confirmation SMS distinguishes "activated until X" vs "queued, starts X".
API: BillingStatusDto.QueuedPlans + DELETE /api/billing/queued/{paymentId}.
Dashboard:
- Subscription screen shows a "Queued subscriptions" card (tier, window, cancel
with confirm).
- Checkout shows "you already have an active subscription — this will start on
{date}" when the café is still covered.
- i18n fa/en/ar.
81 API tests pass; dashboard typechecks.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Sidebar:
- All groups start collapsed on first load (v4 storage key resets old state)
- Opening one group closes all others (accordion)
- Navigating to a section opens only that section's group
Koja slug:
- SlugHelper: Persian->Latin transliteration, slug validation
- Registration accepts optional custom slug; auto-derives from cafe name
- Slug can be updated from dashboard Settings -> Profile
- Settings PATCH validates uniqueness (SLUG_TAKEN) and format (INVALID_SLUG)
- koja.meezi.ir/{slug} now redirects to /fa/cafe/{slug} (short URL support)
Bug fix:
- SupportTicketService: cafeId/status filters applied before Select() projection
to fix EF "could not be translated" crash on the support tickets page
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Introduce an OTP input box on login/register, surface user roles and a
cafe chooser, add a dashboard switch button in the POS screen, and
register OTP validators explicitly to survive Docker layer caching.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Full backend implementation:
- Multi-tenant cafe/restaurant management (menus, orders, tables, staff)
- POS order flow with ZarinPal and Snappfood payment integration
- OTP authentication via Kavenegar SMS
- QR digital menu with public discover/finder endpoints
- Customer loyalty, coupons, CRM
- PostgreSQL via EF Core, Redis for caching/sessions
- Background jobs, webhook handlers
- Full migration history
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
soroush.asadi