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CampusCart: Feature Status & Engineering Roadmap

This document provides a realistic tracking of implemented capabilities, active enhancements, and future milestones for the CampusCart platform.

✅ Completed & Production-Ready Features

The following features were formerly on the backlog and are now fully implemented and tested across the codebase:

Capability Module Implementation Details
Real-Time In-App Messaging apps/web, backend Powered by Spring Boot WebSockets and STOMP over SockJS. Features isolated chat sessions, instant bidirectional messaging, and message persistence in PostgreSQL.
Chat Anti-Spam Controls backend Enforces a 4 consecutive unreplied message limit per sender and a 100-message ceiling per negotiation thread in ChatService.java.
Favorites / Wishlist apps/web, backend Instant one-click bookmarking backed by saved_listings PostgreSQL join table and TanStack Query optimistic cache invalidation.
Infinite Scroll & Pagination apps/web, backend Cursor/offset pagination using Spring Data Pageable and React Query useInfiniteQuery fetching in 12-item chunks.
Trust & Safety Reporting apps/web, backend In-app reporting modal allowing students to flag listings for Spam, Fraud, Prohibited Goods, or Harassment.
Moderation Admin Portal apps/admin, backend Dedicated Vite portal (port 5174) with requireAdmin RBAC, listings approval/rejection queue, reports management, and user ban toggles.
Safe Soft-Deletion Flow backend, apps/admin Resolving a reported listing transitions its state to DELETED, instantly removing it from marketplace feeds while retaining audit records.
Self-Approval Protection backend, apps/web Backend strictly blocks sellers from bypassing admin approval by attempting to move listings from PENDING to ACTIVE.
Monorepo Shared Packages packages/* Clean separation of @campuscart/types, @campuscart/validation, @campuscart/api-client, and @campuscart/utils.

⏳ Active & Near-Term Enhancements

1. Image Reordering in Create Listing

  • Goal: Allow students to drag-and-drop preview thumbnails on the CreateListing page to dynamically rearrange images and explicitly choose the cover photo before publishing.
  • Status: Drag-and-drop upload and 3–5 image constraints are active; visual re-ordering before submission is slated for next UI polish.

2. Peer Review & Rating System (Trust Score)

  • Goal: Allow students to leave 1-to-5 star ratings and short reviews for sellers after an item is marked as SOLD.
  • Technical Plan:
    • New database table seller_reviews with fields: id, reviewer_id, seller_id, listing_id, rating, comment, created_at.
    • Display composite rating score (e.g., ⭐ 4.8 / 5.0) on student profiles and listing detail cards.

🔮 Future Architectural Roadmap

1. Asynchronous Push Notifications

  • Use Case: Inform buyers when a seller replies to a chat, an item on their wishlist drops in price, or a new listing matching saved keywords appears.
  • Architecture:
    • Message Broker: Introduce RabbitMQ to decouple notification dispatch from REST request cycles.
    • Push Service: Firebase Cloud Messaging (FCM) integration for mobile push delivery on iOS and Android.

2. Redis Caching for Read Scaling

  • Use Case: Shield PostgreSQL from high concurrent reads during campus peak hours (e.g., semester startup book sales).
  • Architecture:
    • Cache active marketplace feed pages and category listings with TTL of 5–10 minutes.
    • Invalidate cache keys upon new listing creation or admin status mutation.

3. Integrated UPI / Campus Escrow Payments

  • Use Case: While current transactions are conducted in-person via cash or direct UPI, an escrow payment system can facilitate safe reservations.
  • Architecture:
    • Generate dynamic UPI Deep Links (upi://pay?pa=...&am=...&tn=CampusCart) or integrate a payment gateway (Razorpay / Cashfree) with funds held in escrow until buyer confirms receipt in-person.