Altis Engine Roadmap

This document outlines the high-level roadmap for evolving Altis Engine from a functional prototype into a production-grade Airline Retailing Platform, aligned with IATA's "Modern Retailing" vision.

1. Core Order Management (Priority: High)

Focus: Completing the NDC/ONE Order lifecycle capabilities.

• [ ] Split Order Logic:
  • Implement POST /v1/orders/:id/split to divide passengers into new orders (e.g., when one passenger changes their flight).
  • Handle secure transfer of inventory ownership and payments.
• [ ] Real Ticketing & EMDs:
  • Move beyond UUID barcodes to generate IATA-standard 13-digit Ticket Numbers (ETKT).
  • Implement Electronic Miscellaneous Documents (EMD-A/EMD-S) for ancillary services.
• [ ] Order Customization:
  • Flesh out the customize_order endpoint to actually persist seat and meal selections.
  • Dynamically recalculate order totals and trigger unnecessary re-pricing.
• [ ] Real-time Ancillary Inventory (SSE):
  • Implement GET /v1/ancillaries/:flight_id/availability for live inventory (Meals, Bags, Wi-Fi).
  • Extend SSE BookingContext to push updates for limited-quantity items (e.g., "Last Bassinet available!").
  • Handle concurrent selection race conditions.

2. Payments & Finance (Priority: High)

Focus: Real money handling and financial reconciliation.

• [ ] Payment Gateway Integration:
  • Replace MockPaymentAdapter with a real SDK (Stripe, Adyen, or Worldpay).
  • Implement 3D Secure (3DS) redirect flows within the pay_order orchestration.
• [ ] Refunds & Cancellations:
  • Implement POST /v1/orders/:id/refund for partial and full refunds.
  • Integrate with the financial ledger to issue Credit Notes and update revenue recognition status.

3. Shopping & Pricing (Priority: Medium)

Focus: Enhanced retailing capabilities.

• [ ] Advanced Search Contexts:
  • Support Multi-City and Open-Jaw itineraries in SearchContext.
  • Implement calendar-based search (fleixble dates).
• [ ] Tax Engine:
  • Introduce a dedicated tax calculation engine for YQ/YR, Government Taxes, and Airport Fees.
  • Break down NdcPrice into Base Fare + Taxes for transparent display.

4. Infrastructure & Operations (Priority: Medium)

Focus: Reliability and scale.

• [ ] Expiration Worker:
  • Implement a dedicated background worker (e.g., via tokio-cron-scheduler) to actively release inventory for expired PROPOSED orders.
• [ ] Notification Service:
  • Integrate an email/SMS provider (SendGrid/Twilio) to send:
    • Booking Confirmations (with PDF receipt).
    • Flight Status Updates.
    • Check-in Reminders.

5. Backoffice & Admin (Priority: Low)

Focus: Internal tools for airline staff.

• [ ] Product Catalog UI:
  • Admin dashboard to create/edit Ancillaries (Meals, Bags) and their base prices.
  • specialized form for "Rich Media" uploads (images/descriptions for the storefront).
• [ ] Inventory Control:
  • Manual overrides for flight capacity and ancillary stock limits.