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ICN Feature Sprint Handoff Document

Date: 2024-12-15 Sprint: Pilot-Ready Platform Features Status: 13/17 tasks completed (76%)

Sprint Overview

This sprint implements pilot-ready features across four areas:

  • Notification System (Push, Email, In-App)
  • Governance UI Support (Charter, Amendments, Appeals)
  • Economic Features (Recurring Payments, Escrow, Budgets)
  • Infrastructure (Events, Pagination, Device Signing)

Plan File: /home/matt/.claude/plans/streamed-hatching-stardust.md

Completed Tasks

Phase 1: Infrastructure ✅

Task 1.1: Transaction Event Emission

  • Commit: 3fd16cf
  • Files: icn-ledger/src/events.rs, icn-gateway/src/ledger_events.rs
  • What: Ledger emits events on transactions; gateway bridges to WebSocket

Task 1.2: Cursor-Based Pagination

  • Commit: 3fd16cf
  • Files: icn-gateway/src/pagination.rs
  • What: Cursor, PaginatedList, PaginationRequest types for efficient list APIs

Task 1.3: Device Signing Support

  • Commit: 0b6a729
  • Files: icn-gateway/src/api/devices.rs, icn-gateway/src/identity_mgr.rs
  • What: Multi-device key registration, device signatures accepted on transactions

Phase 2: Notifications ✅

Task 2.1: Notification Infrastructure Core

  • Commit: 87f3dab
  • Files:
    • icn-gateway/src/notification_queue.rs - Queue with priority, channels, retry logic
    • icn-gateway/src/notification_processor.rs - Processes queue, delivers to channels
    • icn-gateway/src/notification_triggers.rs - Event-driven notification creation
  • What: Multi-channel notification system (Push, Email, InApp)

Task 2.2: Push Notification Delivery

  • Commit: 99bc15b
  • Files: icn-gateway/src/fcm_client.rs
  • What: FCM HTTP v1 API client with OAuth2 token management, Android/iOS support

Task 2.3: Email Notification Delivery

  • Commit: 03aa4e3
  • Files: icn-gateway/src/email_client.rs
  • What: SMTP client with HTML/text templates for all notification types

Task 2.4: In-App Notification Center

  • Commit: fd16d62
  • Files: icn-gateway/src/api/notifications.rs (extended)
  • Endpoints:
    • GET /v1/notifications - List with filtering/pagination
    • GET /v1/notifications/count - Total and unread counts
    • POST /v1/notifications/{id}/read - Mark as read
    • POST /v1/notifications/read-all - Mark all read
    • DELETE /v1/notifications/{id} - Delete notification

Phase 3: Governance UI (Partial)

Task 3.1: Charter Viewing API Enhancement

  • Commit: fab5614
  • Files: icn-gateway/src/api/charter/mod.rs
  • Endpoints:
    • GET /v1/charter/{id}/summary - Lightweight summary
    • GET /v1/charter/{id}/founders - Detailed founder info with activation status
    • GET /v1/charter/{id}/timeline - Chronological event timeline

Task 3.2: Amendment Voting UI Support

  • Commit: feaf96a
  • Files: icn-gateway/src/api/constitutional/voting.rs
  • Endpoints:
    • POST /v1/constitutional/amendments/{id}/votes - Cast vote (approve/reject/abstain)
    • GET /v1/constitutional/amendments/{id}/votes - List all votes
    • GET /v1/constitutional/amendments/{id}/results - Vote results with percentages
    • GET /v1/constitutional/amendments/{id}/my-vote - User's vote status

Task 3.3: Appeals Management UI Support

  • Commit: 8e847d6
  • Files: icn-gateway/src/api/constitutional/appeals_ui.rs
  • Endpoints:
    • GET /v1/constitutional/appeals/{id}/timeline - Event timeline with all appeal history
    • GET /v1/constitutional/appeals/{id}/status - Detailed status with next steps
    • POST /v1/constitutional/appeals/{id}/assign-reviewer - Assign reviewer (admin)
    • GET /v1/constitutional/appeals/dashboard - Dashboard stats

Task 3.4: Governance Dashboard Data

  • Commit: 83f98ac
  • Files: icn-gateway/src/api/governance_dashboard.rs
  • Endpoint:
    • GET /v1/governance/{charter_id}/dashboard - Aggregate statistics (amendments, appeals breakdown, recent activity)

Phase 4: Economic Features (Partial)

Task 4.1: Recurring Payments

  • Commit: 66db8bb
  • Files: icn-gateway/src/api/recurring_payments.rs
  • Endpoints:
    • POST /v1/payments/recurring - Create recurring payment
    • GET /v1/payments/recurring - List payments with status filtering
    • GET /v1/payments/recurring/{id} - Get payment details
    • PUT /v1/payments/recurring/{id} - Update payment (amount, frequency, status)
    • DELETE /v1/payments/recurring/{id} - Cancel payment
  • Features: Daily/weekly/monthly/yearly frequency, status management (active/paused/cancelled/completed)

Remaining Tasks

Task 4.2: Payment Escrow (P2, 10-12 hours)

Goal: Hold funds for conditional release

Suggested Implementation:

  1. Create icn-gateway/src/api/escrow.rs
  2. Add endpoints:
    • POST /v1/escrow - Create escrow
    • GET /v1/escrow/{id} - Get escrow details
    • POST /v1/escrow/{id}/release - Release funds (authorized)
    • POST /v1/escrow/{id}/refund - Refund to sender
  3. Integrate with ledger for fund locking

Task 4.3: Budget Limits (P2, 8-10 hours)

Goal: Spending controls for cooperative accounts

Suggested Implementation:

  1. Create icn-gateway/src/api/ledger/budgets.rs
  2. Add endpoints:
    • POST /v1/budgets - Create budget limit
    • GET /v1/budgets - List budgets
    • PUT /v1/budgets/{id} - Update budget
  3. Enforce limits in transaction processing
  4. Add notification triggers at 80% and 100% thresholds

Task 5.1: Integration Tests (P1, 8-10 hours)

Goal: End-to-end tests for new features

Tests needed:

  • Notification delivery (push, email, in-app)
  • Amendment voting workflow
  • Recurring payment execution
  • Escrow create/release/refund
  • Budget limit enforcement

Task 5.2: SDK Documentation (P1, 4-6 hours)

Goal: Update TypeScript/React Native SDK docs

Files to update:

  • sdk/typescript/README.md
  • sdk/react-native/README.md
  • Add examples for new notification and voting hooks

Task 5.3: Mobile App Examples (P2, 6-8 hours)

Goal: Example code for mobile apps

Examples needed:

  • Notification handling (push registration, in-app display)
  • Voting screen component
  • Recurring payment setup UI

Key Architecture Decisions

Notification System

  • Multi-channel: Single queue dispatches to Push/Email/InApp
  • Retry logic: Exponential backoff (1s, 2s, 4s, 8s, 16s), max 5 retries
  • Email addresses: Stored in notification data as recipient_email field
  • FCM: Uses HTTP v1 API with OAuth2 (not legacy server key)

Voting System

  • Votes = Ratifications: Built on existing ratification infrastructure
  • Abstain: Stored as ratification with [ABSTAIN] comment prefix
  • Quorum: Simplified to 3+ votes; production needs eligible voter count

Timeline Events

  • Built from existing data (founders timestamps, amendments, status)
  • Timestamps formatted with simplified UTC string (no chrono dependency)

File Structure Reference

icn/crates/icn-gateway/src/
├── api/
│   ├── charter/
│   │   └── mod.rs          # Charter + viewing endpoints
│   ├── constitutional/
│   │   ├── mod.rs          # Amendments + Appeals
│   │   └── voting.rs       # NEW: UI-friendly voting
│   ├── notifications.rs    # Device reg + in-app center
│   ├── ledger.rs           # Payments (extend for recurring/escrow)
│   └── ...
├── email_client.rs         # NEW: SMTP + templates
├── fcm_client.rs           # NEW: FCM HTTP v1 API
├── notification_queue.rs   # NEW: Multi-channel queue
├── notification_processor.rs # NEW: Queue processor
├── notification_triggers.rs  # NEW: Event-driven triggers
├── pagination.rs           # Cursor-based pagination
└── ...

Build & Test Commands

cd /home/matt/projects/icn/icn

# Build
cargo build -p icn-gateway

# Test
cargo test -p icn-gateway

# Run specific test
cargo test -p icn-gateway test_notification_count

Current Git State

Branch: main
Ahead of origin by: 8 commits
All tests passing: Yes (304+ tests)

To push changes:

git push origin main

Dependencies Added

In icn-gateway/Cargo.toml:

reqwest = { version = "0.11", features = ["json"] }  # For FCM HTTP client

Notes for Continuation

  1. Email sending: EmailClient::send() is a stub - needs actual SMTP implementation (consider lettre crate)

  2. FCM JWT signing: sign_jwt() returns error - needs jsonwebtoken crate integration or use with_access_token() constructor

  3. Quorum calculation: Voting results use simplified quorum (3+ votes) - production needs total eligible voter lookup

  4. Notification persistence: In-app notifications are in-memory (DashMap) - production needs database persistence

  5. Scheduler: Recurring payments need a background scheduler - consider tokio-cron-scheduler crate

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