# Implementation Status

## Overview
This document tracks the implementation status of all engineering tickets from the ISO-20022 Combo Flow Engineering Ticket Breakdown.

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## ✅ Completed (10 tickets)

### Frontend (7 tickets) - **100% Complete**

#### FE-001: Builder UI - Drag & Drop Canvas ✅
- **Status**: ✅ Completed
- **File**: `webapp/src/components/builder/Canvas.tsx`
- **Features Implemented**:
  - Drag-and-drop from palette to canvas
  - Step reordering via drag handle
  - Step cards with numbers, icons, summaries
  - Drop zone highlighting
  - Visual feedback during drag
  - Edit/Remove buttons
  - Step dependency visualization (connection lines)
  - Responsive design

#### FE-002: Builder UI - Adapter Palette ✅
- **Status**: ✅ Completed
- **File**: `webapp/src/components/builder/StepPalette.tsx`
- **Features Implemented**:
  - Adapters grouped by type (DeFi, Fiat/DTL)
  - Filter options: All, DeFi, Fiat/DTL, Whitelisted Only
  - Search functionality
  - Adapter status indicators (Approved, Deprecated, Restricted)
  - Draggable adapters
  - API integration with fallback to default steps

#### FE-003: Builder UI - Step Configuration Drawer ✅
- **Status**: ✅ Completed
- **File**: `webapp/src/components/builder/StepConfigDrawer.tsx`
- **Features Implemented**:
  - Slide-up drawer (mobile/desktop responsive)
  - Step-specific fields for all step types
  - Compliance fields auto-populated from session
  - Real-time validation
  - Dependency visualization (shows previous step output)
  - Compliance requirements display (LEI/KYC/AML)

#### FE-004: Builder UI - Compliance Status Dashboard ✅
- **Status**: ✅ Completed
- **File**: `webapp/src/components/compliance/ComplianceDashboard.tsx`
- **Features Implemented**:
  - Compact badge view in header
  - Expandable overlay with full details
  - Workflow-specific compliance validation
  - LEI/DID/KYC/AML status display
  - Expiration warnings
  - Quick links to update identity

#### FE-005: Builder UI - Optional Simulation Panel ✅
- **Status**: ✅ Completed
- **File**: `webapp/src/components/simulation/SimulationPanel.tsx`
- **Features Implemented**:
  - Optional simulation toggle
  - Simulation options (gas, slippage, liquidity)
  - Step-by-step results display
  - Gas estimate and cost
  - Slippage analysis
  - Liquidity checks
  - Warnings and errors display
  - "Run Again" and "Proceed to Sign" buttons

#### FE-006: Preview Page - Plan Summary & Signing ✅
- **Status**: ✅ Completed
- **File**: `webapp/src/app/builder/preview/page.tsx`
- **Features Implemented**:
  - Complete plan summary display
  - Compliance status section
  - Optional simulation toggle
  - Signature panel integration
  - Create Plan and Execute buttons
  - Error banners
  - Simulation panel integration

#### FE-007: Execution Timeline - Real-Time Updates ✅
- **Status**: ✅ Completed (already implemented, terminal states fixed)
- **File**: `webapp/src/components/plan/ExecutionTimeline.tsx`
- **Features Implemented**:
  - Real-time status updates via SSE (with feature flag)
  - Fallback to polling
  - Phase progression visualization
  - Terminal states handled correctly (complete, failed, aborted)
  - DLT transaction hash and ISO message ID display
  - Error messages

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### Backend API Mock Endpoints (3 tickets) - **Partial Implementation**

#### BE-003: Simulation Engine API ✅
- **Status**: ✅ Mock API Endpoint Created
- **File**: `webapp/src/app/api/plans/[planId]/simulate/route.ts`
- **Features Implemented**:
  - POST endpoint for simulation
  - Mock simulation results with gas, slippage, liquidity
  - Step-by-step results
  - Warnings and errors

#### BE-004: Compliance Engine API ✅
- **Status**: ✅ Mock API Endpoints Created
- **Files**: 
  - `webapp/src/app/api/compliance/status/route.ts`
  - `webapp/src/app/api/compliance/check/route.ts`
- **Features Implemented**:
  - GET /api/compliance/status
  - POST /api/compliance/check
  - Mock compliance validation

#### BE-005: Adapter Registry API ✅
- **Status**: ✅ Mock API Endpoint Created
- **Files**:
  - `webapp/src/app/api/adapters/route.ts`
  - `webapp/src/app/api/connectors/route.ts`
- **Features Implemented**:
  - GET /api/adapters (returns adapter list)
  - GET /api/connectors (returns connector status)
  - Mock adapter data with filtering support

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## ⏳ Pending (18 tickets)

### Backend Services (8 tickets)
- **BE-001**: Orchestrator API - Plan Management (requires orchestrator service)
- **BE-002**: Orchestrator API - Execution Coordination (requires orchestrator service)
- **BE-006**: Server-Sent Events (SSE) (requires orchestrator service)
- **BE-007**: DLT Handler Service (requires orchestrator service + smart contracts)
- **BE-008**: Bank Connector Service (requires orchestrator service + bank integrations)
- **BE-009**: ISO-20022 Message Generation (requires orchestrator service)
- **BE-010**: Notary Service Integration (requires orchestrator service + smart contracts)
- **BE-011**: Receipt Generation Service (requires orchestrator service)

**Note**: These require a separate orchestrator backend service to be set up. Mock endpoints have been created where possible.

### Smart Contracts (4 tickets)
- **SC-001**: Handler/Aggregator Contract (requires contracts directory setup)
- **SC-002**: Notary Registry Contract (requires contracts directory setup)
- **SC-003**: Adapter Registry Contract (requires contracts directory setup)
- **SC-004**: Adapter Interface & Example Adapters (requires contracts directory setup)

**Note**: Smart contracts require Hardhat/Foundry setup and contract deployment infrastructure.

### Integration (2 tickets)
- **INT-001**: Bank Connector Integration (requires orchestrator service + bank APIs)
- **INT-002**: Compliance Provider Integration (requires orchestrator service + KYC/AML providers)

**Note**: These require external service integrations and orchestrator backend.

### Testing (3 tickets)
- **TEST-001**: E2E Tests - Builder Flow (can be implemented now)
- **TEST-002**: E2E Tests - Failure Scenarios (can be implemented now)
- **TEST-003**: Smart Contract Tests (requires contracts directory)

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## Summary

### Completion Status
- **Frontend**: 7/7 tickets (100%) ✅
- **Backend APIs (Mock)**: 3/11 tickets (27%) - Mock endpoints created
- **Smart Contracts**: 0/4 tickets (0%) - Requires infrastructure setup
- **Integration**: 0/2 tickets (0%) - Requires orchestrator service
- **Testing**: 0/3 tickets (0%) - Can be started for frontend

### Total Progress
- **Completed**: 10/28 tickets (36%)
- **Pending**: 18/28 tickets (64%)

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## Next Steps

### Immediate (Can be done now)
1. **TEST-001**: Implement E2E tests for builder flow
2. **TEST-002**: Implement E2E tests for failure scenarios
3. Enhance existing components based on user feedback

### Requires Infrastructure Setup
1. **Set up Orchestrator Service**: Create separate backend service for plan management, execution coordination
2. **Set up Smart Contracts**: Initialize Hardhat/Foundry project, deploy contracts
3. **Set up Database**: Database for plan storage, audit logs
4. **Set up External Integrations**: Bank APIs, KYC/AML providers

### Architecture Decisions Needed
1. **Orchestrator Service**: Choose framework (Express, FastAPI, NestJS)
2. **Database**: Choose database (PostgreSQL, MongoDB)
3. **Message Queue**: For async execution coordination (RabbitMQ, Redis)
4. **Deployment**: Choose deployment platform (Docker, Kubernetes, Cloud)

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**Document Version**: 1.0  
**Last Updated**: 2025-01-15  
**Status**: Frontend Complete ✅ | Backend Pending ⏳