hristudio/IMPLEMENTATION_STATUS.md

HRIStudio Implementation Status

Project Overview

HRIStudio is a web-based platform for standardizing and improving Wizard of Oz (WoZ) studies in Human-Robot Interaction research. Built with the T3 stack (Next.js 15, tRPC, Drizzle ORM, NextAuth.js v5).

Implementation Progress

✅ Completed Components

1. Database Schema (100%)

• 31 tables implemented covering all core functionality
• Core entities: Users, Studies, Experiments, Trials, Participants, Robots, Plugins
• Data capture: Media captures, sensor data, annotations, trial events
• Collaboration: Comments, attachments, shared resources
• System: Audit logs, system settings, export jobs
• Relations: All foreign keys and table relationships configured
• Indexes: Performance optimization indexes in place

2. API Infrastructure (100%) ✅

All major tRPC routers implemented and schema-aligned:

Authentication & Users

• auth router: Login, logout, registration, session management
• users router: User CRUD, role assignments, profile management

Core Research Functionality

• studies router: Study management, member management, activity tracking
• experiments router: Protocol design, step/action configuration
• participants router: Participant management, consent tracking
• trials router: Trial execution, real-time data capture, session management

Robot Integration

• robots router: Robot configuration, connection testing
• robots.plugins sub-router: Plugin management, installation, action definitions

Data & Analytics

• media router: Video/audio upload, file management, sensor data recording
• analytics router: Annotations, data export, trial statistics

Collaboration & Admin

• collaboration router: Comments, attachments, resource sharing
• admin router: System stats, settings, audit logs, backup management

3. Authentication System (100%) ✅

• NextAuth.js v5 configured with email/password authentication
• JWT session strategy implemented with role support
• Protected routes with middleware authentication
• tRPC authentication procedures (protected, admin)
• Complete auth flow: signin, signup, signout pages
• Session management working correctly
• Type safety fully implemented
• Role-based access control with 4 system roles (administrator, researcher, wizard, observer)
• User profile management with edit capabilities
• Password change functionality with validation
• Admin interface for user and role management
• Authorization utilities for client and server-side use

4. User Interface Components (85%) ✅

• Authentication pages complete (signin, signup, signout)
• User profile management interface complete
• Admin dashboard with user/role management complete
• Dashboard layout with sidebar navigation and role-based access
• Study management interface complete with CRUD operations
• Visual Experiment Designer complete with drag-and-drop functionality
• Role-based navigation and access control
• Responsive UI components using shadcn/ui
• Protected route displays and unauthorized handling

5. Visual Experiment Designer (100%) ✅

• Drag-and-Drop Canvas - Professional drag-and-drop interface using @dnd-kit
• Step Library - 4 step types: Wizard Action, Robot Action, Parallel Steps, Conditional Branch
• Visual Step Cards - Rich information display with reordering capabilities
• Real-time Saving - Auto-save with version control and conflict resolution
• API Integration - Complete tRPC integration for design persistence
• Professional UI/UX - Loading states, error handling, empty states
• Step Configuration - Framework for parameter editing (expandable)
• Access Control - Role-based permissions throughout designer

6. Project Structure (100%) ✅

• T3 stack properly configured
• Environment variables setup
• Database connection with connection pooling
• TypeScript configuration
• ESLint and Prettier setup

🚧 Current Issues & Blockers

1. Advanced Authentication Features Complete ✅

• Role-based access control fully implemented
• Admin user management interface working
• User profile editing and password changes
• Authorization middleware protecting all routes
• Session-based role checking throughout app
• Complete admin dashboard for system management

2. API Router Schema Alignment Complete ✅

All routers properly aligned with database schema:

Trials Router:

// All fields correctly aligned:
startedAt: trials.startedAt,     // ✅ Correctly using schema fields
completedAt: trials.completedAt, // ✅ Correctly using schema fields  
duration: trials.duration,       // ✅ Correctly using schema fields

Robots Router:

// All fields correctly aligned with schema:
id, name, manufacturer, model, description, capabilities, 
communicationProtocol, createdAt, updatedAt // ✅ All exist in schema

Participants Router:

// Correctly using schema fields:
participantCode: participants.participantCode, // ✅ Correctly aligned
email, name, demographics, consentGiven // ✅ All schema fields

3. Type Safety Complete ✅

// Proper enum usage throughout:
inArray(studyMembers.role, ["owner", "researcher"] as const) // ✅ Proper typing
// All database operations properly typed with Drizzle

🎯 Immediate Action Items

Phase 1: Complete Authentication System ✅ (Completed)

1. Core Authentication ✅

   • NextAuth.js v5 with email/password authentication
   • JWT session strategy with role support
   • Proper type safety throughout

2. Role-Based Access Control ✅

   • 4 system roles: administrator, researcher, wizard, observer
   • Role assignment and management via admin interface
   • Authorization utilities for client and server-side

3. User Management ✅

   • User profile management with edit capabilities
   • Password change functionality with validation
   • Admin dashboard for user and role management

4. Route Protection & UI ✅

   • Middleware protecting all authenticated routes
   • Complete authentication pages (signin, signup, signout)
   • Admin interface with user table and role management
   • Unauthorized access handling

Phase 2: API Router Schema Alignment Complete ✅ (Completed)

1. All router field references audited and aligned ✅
2. All router queries using correct field names ✅
3. Type safety verified across all database operations ✅

Phase 3: UI Implementation (Est: 4-8 hours) - Following Authentication

1. Create study management interface
2. Build experiment designer components
3. Implement trial execution interface
4. Add data analysis components

🏗️ Architecture Decisions Made

Database Layer

• ORM: Drizzle ORM for type-safe database operations
• Database: PostgreSQL with JSONB for flexible metadata
• Migrations: Drizzle migrations for schema versioning
• Connection: postgres.js with connection pooling

API Layer

• API Framework: tRPC for end-to-end type safety
• Authentication: NextAuth.js v5 with database sessions
• Validation: Zod schemas for all inputs
• Error Handling: TRPCError with proper error codes

File Storage

• Strategy: Presigned URLs for client-side uploads
• Provider: Designed for Cloudflare R2 (S3-compatible)
• Security: Access control through trial/study permissions

Real-time Features

• WebSocket Events: Planned for trial execution
• State Management: tRPC subscriptions for live updates

📋 Recommended Next Steps

Week 1: Core Stabilization

1. Fix all type errors in existing routers
2. Align schema expectations with actual database
3. Test basic CRUD operations for each entity
4. Set up development database with sample data

Week 2: UI Foundation ✅ (Completed)

1. Create basic layout with navigation ✅
2. Implement authentication flow ✅
3. Build study management interface ✅
4. Add experiment designer basics ✅

Week 3: Trial Execution (Current Priority)

1. Implement wizard interface - Real-time trial control
2. Add real-time trial monitoring - WebSocket integration
3. Build participant management - Registration and consent tracking
4. Test end-to-end trial flow - Complete researcher workflow

Week 4: Advanced Features

1. Step Configuration Modals - Detailed parameter editing for experiment steps
2. Robot Action Library - Plugin-based action definitions
3. Media upload/playback - Trial recording and analysis
4. Data analysis tools - Statistics and visualization
5. Export functionality - Data export in multiple formats
6. Collaboration features - Comments and real-time collaboration

🔧 Development Commands

# Start development server
bun dev

# Database operations
bun db:migrate
bun db:studio
bun db:seed

# Type checking
bun type-check

# Linting
bun lint
bun lint:fix

📁 Key File Locations

src/
├── server/
│   ├── api/
│   │   ├── routers/          # All tRPC routers
│   │   ├── root.ts           # Router registration
│   │   └── trpc.ts           # tRPC configuration
│   ├── auth/                 # NextAuth configuration
│   └── db/
│       ├── schema.ts         # Database schema
│       └── index.ts          # Database connection
├── app/                      # Next.js app router pages
├── components/               # Reusable UI components
└── lib/                      # Utilities and configurations

🚨 Critical Notes for Implementation

1. Security: All routes implement proper authorization checks
2. Performance: Database queries include appropriate indexes
3. Scalability: Connection pooling and efficient query patterns
4. Error Handling: Comprehensive error messages and logging
5. Type Safety: End-to-end TypeScript with strict mode

📊 Current State Assessment

Component	Completion	Status	Priority
Database Schema	100%	✅ Complete	-
API Routers	100%	✅ Complete	-
Authentication	100%	✅ Complete	-
UI Components	85%	✅ Studies & experiments management done	Low
Experiment Designer	100%	✅ Complete	-
Trial Execution	80%	🚧 Wizard interface needed	High
Real-time Features	30%	🚧 WebSocket setup needed	High
File Upload	70%	🚧 R2 integration needed	Medium
Documentation	85%	🚧 API docs needed	Low

Advanced authentication system with role-based access control is now complete! This includes:

• ✅ Full Authentication Flow: Registration, login, logout, password changes
• ✅ Role-Based Access Control: 4 system roles with proper authorization
• ✅ Admin Interface: Complete user and role management dashboard
• ✅ User Profile Management: Edit profiles, change passwords, view roles
• ✅ Route Protection: Middleware-based authentication for all protected routes
• ✅ UI Components: Professional authentication and admin interfaces

Complete API infrastructure with schema alignment is also finished! This includes:

• ✅ 11 tRPC Routers: All major functionality implemented and working
• ✅ Schema Alignment: All router queries properly reference existing database fields
• ✅ Type Safety: Full TypeScript coverage with proper Drizzle typing
• ✅ Error Handling: Comprehensive validation and error responses
• ✅ Authorization: Proper role-based access control throughout all endpoints

The backend foundation is robust and production-ready. Study and experiment management interfaces are now complete with a fully functional Visual Experiment Designer. Next priorities are real-time trial execution features and the wizard interface for live trial control.

🎯 Recent Completions

Visual Experiment Designer ✅

• Complete drag-and-drop interface for designing experiment protocols
• 4 step types implemented: Wizard Action, Robot Action, Parallel Steps, Conditional Branch
• Professional UI/UX with loading states, error handling, and responsive design
• Real-time saving with version control and conflict resolution
• Full API integration with proper authorization and data persistence
• Accessible at /experiments/[id]/designer with complete workflow from creation to design

Study Management System ✅

• Complete CRUD operations for studies with team collaboration
• Role-based access control throughout the interface
• Professional dashboard with sidebar navigation
• Study detail pages with team management and quick actions
• Responsive design working across all screen sizes

The platform now provides a complete research workflow from study creation through experiment design, ready for trial execution implementation.