Implementation Plan & Estimated Timeline

This is a high-level estimate and can be refined. Assumes a small, focused team (e.g., 2-3 developers). Sprints are typically 2 weeks.

11.1. Phase 0: Setup & Foundational Services (2-3 Weeks)

• Tasks:
  • GCP project setup, billing, IAM.
  • Terraform setup for core infrastructure (VPC, basic service skeletons).
  • CI/CD pipeline for a "hello world" microservice.
  • Setup Next.js projects (Admin, Agent) with basic layout (Catalyst/Tailwind UI).
  • Prisma setup and initial migration for common models (User).
  • Define API Gateway configuration skeleton.
  • Establish logging & monitoring basics.
  • Security hardening: initial API key/token strategy.
• Deliverables: Working CI/CD, basic project structure, Terraform foundation.

11.2. Phase 1: Core User & Device Management (3-4 Weeks)

• Tasks:
  • Develop User & Agent Management Service (CRUD for House, Agents, API key generation).
  • Develop Device Management Service (register device, status updates - initial simple version).
  • Integrate Firebase Authentication with Next.js apps.
  • Admin UI for House Admin to create Agents.
  • Agent UI for viewing profile, API key. Agent registers a device (basic).
• Deliverables: Functional user and basic device management.

11.3. Phase 2: Recharge Workflow (4-6 Weeks)

• Tasks:
  • Develop Transaction Ingestion API for recharge data.
  • Develop Recharge Processing Service (validation, fee calc hook, DB persistence).
  • Develop Fee Calculation Service (initial simple version).
  • Develop Notification Service (basic webhook delivery for recharge).
  • Agent device sends transaction data (can be simulated initially).
  • Agent UI displays incoming transactions.
  • Database schema for transactions.
  • Testing for recharge flow.
• Deliverables: End-to-end recharge data ingestion, processing, and notification.

11.4. Phase 3: Payout Workflow (4-5 Weeks)

• Tasks:
  • Enhance Transaction Ingestion API / or dedicated endpoint for payout requests.
  • Develop Payout Orchestration Service (validation, triggering device).
  • Develop Device Communication Service (stub/API for device interaction).
  • Agent UI to request payouts.
  • Agent UI to view payout status.
  • Database schema for payouts.
  • Testing for payout flow.
• Deliverables: End-to-end payout request and simulated execution.

11.5. Phase 4: Reporting & Admin Enhancements (3-4 Weeks)

• Tasks:
  • Develop Reporting Service (APIs for basic transaction/payout reports).
  • Integrate AG-Grid into Agent and Admin UIs for displaying report data.
  • Implement ordering, grouping by currency, agent, date filters.
  • Implement report cutting periods (daily, weekly, etc.).
  • Admin UI for feature restriction management.
  • Admin UI for global reporting.
• Deliverables: Basic reporting features and admin controls.

11.6. Phase 5: Testing, Security Hardening & Go-Live Prep (3-4 Weeks)

• Tasks:
  • Comprehensive E2E testing, Load testing.
  • Security audit, penetration testing (if possible).
  • Refine monitoring, alerting.
  • Finalize all documentation (API, Technical, User Guides).
  • Data migration strategy if any old system data exists.
  • Go-live checklist and deployment runbook.
• Deliverables: Production-ready system, comprehensive documentation.

Total Estimated Timeline: Approx. 19-26 weeks. This can be significantly impacted by team size, experience, complexity discovered, and feedback cycles.