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messaging_app_20251010_040350/.sureai/sprint_plan.md
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2025-10-10 04:47:41 +00:00

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Sprint Plan - Messaging App Project

This sprint plan outlines the phased approach for the Messaging App project, aligning with the Product Requirements Document (PRD) and focusing on iterative development.

Phase 1: Discovery & Architecture (Completed)

Goal: Establish foundational project understanding and technical blueprints. Deliverables: analysis_document.md, architecture_document.md, tech_stack_document.md, prd_document.md.

Phase 2: Core Messaging MVP Development (Target: 8-10 weeks)

Goal: Deliver a fully functional 1:1 messaging system with secure authentication and message persistence.

Sprint 1: Foundational Services & Authentication (Weeks 1-3)

Focus: Backend user authentication, profile management, and initial frontend integration. Tasks:

  • Task 1: Implement Backend User Authentication & Profile Management [BACKEND]
    • Develop FastAPI services for user registration, login, profile CRUD, and user search.
    • Implement JWT issuance/validation, secure password hashing (bcrypt).
    • Define and implement initial PostgreSQL schema for Users.
    • Implement API rate limiting on auth/registration endpoints.
  • Task 2: Develop Frontend User Authentication & Profile Integration [FRONTEND]
    • Integrate Angular Auth Module with Clarity UI for user registration/login.
    • Implement secure JWT handling (storage, refresh mechanism).
    • Develop basic User Profile view and update functionality.
    • Implement Content Security Policy (CSP) for the frontend.

Sprint 2: Real-time 1:1 Messaging & Persistence (Weeks 4-7)

Focus: Core one-to-one real-time messaging functionality. Tasks:

  • Task 3: Build Full-Stack One-to-One Real-time Messaging (MVP) [FULL-STACK]
    • Backend: Develop Message Service (persistence in PostgreSQL), WebSocket Service (real-time delivery via FastAPI/Starlette).
    • Backend: Integrate Redis for Pub/Sub and user presence management.
    • Backend: Implement message buffering for offline users (Redis Streams/Lists).
    • Frontend: Develop Angular Chat Module (1:1 chat UI, message input, real-time sending/receiving messages).
    • Frontend: Implement display of paginated message history.
    • Frontend: Integrate user presence display in the UI.

Sprint 3: MVP Integration, QA & Local Deployment (Weeks 8-10)

Focus: End-to-end integration, testing, and local development setup. Tasks:

  • Full end-to-end integration of frontend and backend components.
  • Implement unit and integration tests (Jest/Pytest) for all MVP features.
  • Conduct initial performance testing for message latency and concurrent users.
  • Configure docker-compose.yml for consistent local development across all services (Frontend, Backend API, WebSocket, Redis, PostgreSQL).
  • Set up basic monitoring for the local development environment.

Phase 3: Feature Expansion & Quality Assurance (Target: 6-8 weeks, starting after MVP)

Goal: Implement advanced messaging features and ensure high quality.

Sprint 4: Group Chat & UI Enhancements (Weeks 1-3)

Focus: Group chat capabilities. Tasks:

  • Task 4: Implement Full-Stack Group Chat Capabilities [FULL-STACK]
    • Backend: Extend Conversation Service for Group Chat management (creation, member add/remove).
    • Backend: Extend Message Service for group messaging.
    • Frontend: Develop UI for creating and managing group chats.
    • Frontend: Enhance conversation list to differentiate 1:1 and group chats.
    • Frontend: Develop an enhanced chat interface for group messaging.

Sprint 5: Notifications & Media Sharing (Weeks 3-5)

Focus: Notifications and media sharing. Tasks:

  • Task 5: Develop Full-Stack Enhanced Communication Features [FULL-STACK]
    • Backend: Develop Notification Service.
    • Backend: Integrate with object storage (AWS S3/GCS) for File Storage Service.
    • Backend: Implement background task queue (Celery/Redis) for media processing.
    • Frontend: Implement in-app notification display.
    • Frontend: Implement functionality for uploading and displaying various media types within chat conversations.

Sprint 6: Comprehensive Testing & Optimization (Weeks 5-8)

Focus: Quality assurance, performance, and security. Tasks:

  • Conduct full E2E testing (Cypress/Playwright) for all features.
  • Perform security audits and advanced load testing.
  • Comprehensive performance optimization across all features.
  • Extensive bug fixing.
  • Refine monitoring dashboards (Grafana) and logging queries (Loki/ELK).

Phase 4: Deployment Readiness & Operations (Target: 2-3 weeks, after Feature Expansion)

Goal: Prepare for production deployment and establish operational excellence.

Sprint 7: CI/CD & Production Infrastructure Setup (Weeks 1-2)

Focus: Automation and production environment configuration. Tasks:

  • Set up robust CI/CD pipelines (GitHub Actions/GitLab CI) for automated linting, testing, container image building, vulnerability scanning, and deployment to staging environments.
  • Configure production-grade infrastructure on cloud (e.g., Kubernetes/ECS, PostgreSQL with read replicas, Redis Cluster, Nginx load balancer).
  • Establish secure environment variable management.

Sprint 8: Monitoring, Logging & Production Deployment (Weeks 2-3)

Focus: Operational readiness and final deployment. Tasks:

  • Implement comprehensive monitoring (Prometheus/Grafana), centralized logging (Loki/ELK), and error tracking (Sentry) for production.
  • Configure alerts for critical issues.
  • Automate database backups.
  • Final deployment of the application to the production environment, followed by post-deployment verification and continuous operational support.