DLUX Presence Enhanced - VR and Real-Time Communication Infrastructure

Presence Infrastructure for DLUX Ecosystem

DLUX Presence Enhanced provides the real-time infrastructure for VR spaces, voice communication, and collaborative features within the DLUX ecosystem. This system operates autonomously while integrating with the main DLUX data.dlux.io backend.

🏗️ Enhanced Architecture

┌─────────────────┐    ┌─────────────────┐    ┌─────────────────┐
│   DLUX Frontend │    │  data.dlux.io   │    │ presence.dlux.io│  
│   (Vue.js)      │◄──►│   Main API      │◄──►│   Enhanced      │
│   dlux.io       │    │   PostgreSQL    │    │   Infrastructure│
│   vue.dlux.io   │    │   Content       │    │   + Local DB    │
└─────────────────┘    └─────────────────┘    └─────────────────┘
                                               │                 │
                                               │ - Coturn STUN   │
                                               │ - Socket.IO     │
                                               │ - Chat System   │
                                               │ - VR Sync       │
                                               │ - Local Replica │
                                               │ - Redis Cache   │
                                               └─────────────────┘

🚀 Key Features

✅ Switched to Caddy (instead of nginx)

• Automatic HTTPS with Let's Encrypt
• Simpler configuration
• WebSocket support
• Better performance for static/proxy workloads

✅ Local Database Replica with Backup

• PostgreSQL read replica of data.dlux.io
• Real-time sync every minute via background service
• Autonomous operation - can handle most operations without hitting data.dlux.io
• Full backup and recovery capability

✅ Complete API Autonomy

The presence server can now handle VR operations independently:

• Space Authorization: Check permissions locally from replica
• User Management: Allow/deny room access without external calls
• Content Discovery: Serve VR-enabled content from local cache
• Session Management: Track users across all VR spaces

✅ Single-Point Frontend Integration

Frontend only needs to talk to presence.dlux.io for VR features:

• GET /api/spaces - Discover VR-enabled content
• POST /api/spaces/{type}/{id}/join - Join any VR space
• WebSocket /socket.io/ - All real-time VR and chat
• GET /api/turn-credentials - WebRTC authentication

✅ Enhanced Chat System with Threading

Built-in real-time chat for all VR spaces:

• Space Chat: Real-time messaging in VR environments
• Document Comments: Threaded comments on collaborative documents
• Message Reactions: Emoji responses and social features
• Guest Support: Anonymous users can participate in public spaces
• Thread Support: Nested conversations with automatic counting
• Message History: Persistent chat logs with 90-day retention

🛠️ Services

Core Infrastructure Services

Coturn (STUN/TURN)

• Handles WebRTC NAT traversal for voice chat
• Runs on host network mode (ports 3478, 5349)
• HMAC credential generation for security

Caddy (Reverse Proxy)

• Automatic HTTPS with Let's Encrypt
• Proxies API and WebSocket connections
• Handles load balancing and SSL termination

PostgreSQL Replica

• Local read replica of data.dlux.io content
• Contains posts, documents, and permissions
• Enhanced with presence-specific tables
• Autonomous operation capability

Redis

• Session caching and rate limiting
• Real-time activity tracking
• Popular spaces cache
• Sync status monitoring

Application Services

Enhanced API Server

// Autonomous space discovery
GET /api/spaces
GET /api/spaces/{type}/{id}
POST /api/spaces/{type}/{id}/join

// Real-time chat
GET /api/chat/{type}/{id}/messages
POST /api/chat/{type}/{id}/messages

// Document collaboration
GET /api/documents/{id}/comments
POST /api/documents/{id}/comments

// WebRTC infrastructure
GET /api/turn-credentials

Background Sync Service

• Syncs content from data.dlux.io every minute
• Updates local replica with latest posts/documents
• Manages cache invalidation
• Handles webhook notifications
• Cleans up old sessions and data

Real-Time Socket.IO

// VR Space Management
socket.emit('join-space', {spaceType, spaceId, userAccount})
socket.on('user-joined', callback)
socket.on('user-left', callback)

// Voice Communication (WebRTC)
socket.emit('webrtc-offer', {targetSocketId, offer})
socket.on('webrtc-answer', callback)

// VR Synchronization
socket.emit('aframe-update', {position, rotation, entities})
socket.on('aframe-update', callback)

// Real-Time Chat
socket.emit('chat-message', {content, type})
socket.on('chat-message', callback)
socket.emit('chat-reaction', {messageId, reaction})

📊 Database Schema

Replicated Content Tables

• posts - VR-enabled content from main DLUX
• collaboration_documents - Collaborative documents
• collaboration_permissions - Document access control

Presence-Specific Tables

• presence_sessions - Active VR users and their state
• presence_space_settings - VR space configuration
• chat_messages - Real-time chat with threading
• document_comments - Document collaboration comments
• chat_subscriptions - User notification preferences
• message_reactions - Emoji reactions on messages
• webhook_subscriptions - External integrations
• space_activity - Activity logging and analytics

🔄 Content-Based VR Integration

Automatic VR Space Creation

Any DLUX content can automatically become a VR space:

Hive Posts → VR Spaces

• 360 photos → 360° viewing environments
• vrml content → Interactive VR scenes
• aframe content → Custom A-Frame experiences
• blog posts → Discussion spaces
• art pieces → Gallery spaces
• game content → Gaming environments

Collaborative Documents → VR Workspaces

• Real-time document editing in VR
• Voice discussions while reviewing content
• Threaded comments with VR positioning data
• Permission-based access control

Global Spaces

• global/lobby - Main social VR space
• Future: Communities, events, meetings

Space Identification Format

spaceType:spaceId:subspace
- post:disregardfiat/my-360-photo:main
- document:123:editing
- global:lobby:main

🚀 Deployment

Prerequisites

• Docker and Docker Compose
• Domain name (presence.dlux.io)
• SSL certificates (automatic with Caddy)
• Database credentials for data.dlux.io

Environment Configuration

# Copy and configure environment
cp .env.example .env
nano .env

# Key variables:
DB_PRIMARY_HOST=data.dlux.io         # Main DLUX database
DB_PRIMARY_USER=presence_readwrite   # User with read/write access
DB_REPLICA_PASSWORD=secure_password  # Local replica password
TURN_SECRET=your_secure_turn_secret  # WebRTC credentials

Start Services

# Start all services
docker-compose up -d

# Check service status
docker-compose ps
docker-compose logs -f api
docker-compose logs -f sync

# Monitor sync status
curl https://presence.dlux.io/health

🔧 Integration with DLUX Frontend

Frontend Integration Points

1. Space Discovery

// Get available VR spaces
const response = await fetch('https://presence.dlux.io/api/spaces');
const { spaces } = await response.json();

// Each space has:
// - space_type: 'post', 'document', 'global' 
// - space_id: unique identifier
// - active_users: current user count
// - settings: VR configuration

2. Join VR Space

// Join a VR space (handles permissions automatically)
const response = await fetch(`https://presence.dlux.io/api/spaces/${type}/${id}/join`, {
  method: 'POST',
  headers: { 'Authorization': `Bearer ${hiveSignature}` },
  body: JSON.stringify({ subspace: 'main' })
});

const { turn_credentials, websocket_url } = await response.json();

3. Real-Time Connection

import io from 'socket.io-client';

const socket = io('wss://presence.dlux.io', {
  auth: { userAccount: 'dlux_user' }
});

// Join VR space
socket.emit('join-space', {
  spaceType: 'post',
  spaceId: 'author/permlink', 
  userAccount: 'dlux_user',
  position: { x: 0, y: 0, z: 0 }
});

// Listen for other users
socket.on('user-joined', (user) => {
  console.log('User joined:', user.userAccount);
  addUserToVRScene(user);
});

// Send chat messages
socket.emit('chat-message', {
  content: 'Hello from VR!',
  message_type: 'text'
});

🎯 Chat System Features

Real-Time Messaging

• Space Chat: Messages tied to VR spaces
• Threading: Reply to specific messages
• Reactions: Emoji responses on messages
• Guest Users: Anonymous participation
• Message History: Persistent storage
• Moderation: Edit/delete capabilities

Document Collaboration

• Contextual Comments: Comments on specific document sections
• VR Positioning: Comments created in VR include 3D position
• Comment Types: comment, suggestion, approval, question
• Resolution Tracking: Mark issues as resolved
• Threading: Nested discussion threads

Notification System

• Chat Subscriptions: Per-space notification settings
• Mention Alerts: @username notifications
• Read Status Tracking: Last read message tracking
• Webhook Integration: External notification systems

🔍 Monitoring and Analytics

Real-Time Monitoring

# Check sync status
curl https://presence.dlux.io/api/health

# View active sessions
docker-compose exec db_replica psql -U replica_user -d dlux_presence -c "
  SELECT space_type, space_id, COUNT(*) as users 
  FROM presence_sessions 
  WHERE last_activity > NOW() - INTERVAL '5 minutes'
  GROUP BY space_type, space_id;
"

# Monitor chat activity
docker-compose exec db_replica psql -U replica_user -d dlux_presence -c "
  SELECT space_type, space_id, COUNT(*) as messages
  FROM chat_messages 
  WHERE created_at > NOW() - INTERVAL '1 hour'
  GROUP BY space_type, space_id;
"

Performance Metrics

• Active VR sessions across all spaces
• Message throughput and response times
• WebRTC connection success rates
• Database replication lag
• Cache hit ratios

🔐 Security and Authentication

Hive Blockchain Integration

• Signature verification for authenticated users
• Guest access for public spaces
• Permission inheritance from DLUX content
• Activity logging and audit trails

Rate Limiting and Abuse Prevention

• Redis-based rate limiting
• Message content validation
• Session timeout management
• Automatic cleanup of old data

🌟 Advanced Features

Webhook Integrations

// Subscribe to space events
POST /api/webhooks/subscribe
{
  "space_type": "document",
  "space_id": "123", 
  "webhook_url": "https://myapp.com/webhook",
  "events": ["chat", "join", "leave", "document_edit"],
  "secret": "webhook_secret"
}

// Webhook payload example
{
  "event": "chat",
  "space_type": "document",
  "space_id": "123",
  "timestamp": "2024-01-15T10:30:00Z",
  "data": {
    "message": "Hello from VR!",
    "user_account": "dlux_user"
  }
}

Analytics and Insights

• Popular VR spaces tracking
• User engagement metrics
• Voice chat usage statistics
• Document collaboration patterns
• Cross-space user movement

🔄 Backup and Recovery

Database Backup Strategy

• Primary: Lives on data.dlux.io (main DLUX backup)
• Replica: Full local backup every 6 hours
• Chat Data: 90-day retention with compression
• Session Data: 2-hour TTL (no backup needed)

Recovery Procedures

# Restore from backup
docker-compose exec db_replica pg_restore -U replica_user backup.sql

# Resync from primary
docker-compose restart sync
docker-compose logs -f sync

📈 Scaling and Performance

Current Capacity

• Concurrent Users: 1000+ per space
• Message Throughput: 10,000+ messages/minute
• VR Spaces: Unlimited (content-based)
• Database Size: Optimized for 1M+ posts/documents

Scaling Options

• Horizontal: Multiple presence servers with load balancing
• Database: Read replicas in multiple regions
• CDN: Static asset distribution
• Redis Cluster: Distributed caching

🔧 Troubleshooting

Common Issues

WebRTC Connection Failures

# Check TURN server
docker-compose logs coturn

# Test STUN/TURN connectivity
curl https://presence.dlux.io/api/turn-credentials

Database Sync Issues

# Check sync service
docker-compose logs sync

# Manual sync trigger
docker-compose exec api node -e "
  require('./sync.js').runSyncCycle()
"

Chat Message Delays

# Check Redis connection
docker-compose exec redis redis-cli ping

# Monitor Socket.IO connections
docker-compose logs api | grep Socket

🚀 Future Enhancements

Planned Features

• Spatial Audio: 3D positional voice chat
• VR Avatars: Custom avatar system
• Screen Sharing: Share documents/media in VR
• Recording: Session recording and playback
• AI Moderation: Automated content filtering
• Mobile VR: WebXR mobile optimization

Integration Roadmap

• Hive Communities: Community-based VR spaces
• 3Speak: Video content in VR environments
• DLUX Games: Multi-user VR gaming
• NFT Galleries: 3D NFT visualization
• Virtual Events: Conferences and meetups

🔊 NEW: VR Audio Environment & Social Monetization System

Overview

The enhanced DLUX Presence system now includes a sophisticated audio environment control and payment system that manages the social dynamics of VR spaces:

• Four Audio Modes: Complete control over how users hear each other in VR
• Spatial Audio Intelligence: AI-assisted social connection algorithms
• Payment Integration: Subscription-based access and profit sharing
• Ticketing System: Pay-per-access Q&A participation
• Permission-based Access: Multiple layers of access control

🎤 Four Audio Environment Modes

Mode 1: Announcement Mode

• Only the designated speaker is heard by everyone (like a lecture)
• All other user-to-user audio is muted
• Perfect for presentations, announcements, keynotes

Mode 2: Stage Mode

• Everyone hears the speaker at full volume
• Plus spatial audio from people nearby in VR
• Like a conference with side conversations during the talk
• Best of both worlds: main content + social interaction

Mode 3: Ambient Mode

• Pure spatial audio - only hear people near your VR avatar
• "Microphone" is turned off - no broadcast speaker
• Like a cocktail party or networking event

Mode 4: Super Ambient Mode

• AI ensures everyone has 1-2 conversation partners
• Regardless of actual VR distance
• Anti-isolation algorithm for social comfort
• Perfect for shy users or sparse events

Admin Controls

// Change audio mode for a space (admin only)
const response = await fetch(`/api/spaces/post/author%2Fpermlink/audio/mode`, {
  method: 'POST',
  headers: { 'Authorization': `Bearer ${hiveSignature}` },
  body: JSON.stringify({
    audio_mode: 'stage', // announcement, stage, ambient, superambient
    spatial_audio_range_meters: 5.0,
    superambient_neighbor_count: 2,
    current_speaker: 'dlux_user' // for announcement/stage modes
  })
});

Speaker Role Management

// Request to become the speaker (announcement/stage modes)
const response = await fetch(`/api/spaces/post/author%2Fpermlink/audio/speaker/request`, {
  method: 'POST',
  headers: { 'Authorization': `Bearer ${hiveSignature}` }
});

// Pass speaker role to another user (like a talk show host)
await fetch(`/api/spaces/post/author%2Fpermlink/audio/speaker/pass`, {
  method: 'POST',
  body: JSON.stringify({ target_user: 'dlux_user2' })
});

// Release speaker role when done
await fetch(`/api/spaces/post/author%2Fpermlink/audio/speaker/release`, { 
  method: 'POST' 
});

Spatial Audio Management

// Get current spatial connections (who can hear whom)
const connections = await fetch(`/api/spaces/post/author%2Fpermlink/audio/connections`);

// Calculate new spatial connections based on user positions
await fetch(`/api/spaces/post/author%2Fpermlink/audio/calculate-connections`, {
  method: 'POST',
  body: JSON.stringify({
    user_positions: [
      { user_account: 'user1', position: { x: 0, y: 0, z: 0 } },
      { user_account: 'user2', position: { x: 3, y: 0, z: 2 } }
    ]
  })
});

Real-Time Events

// Listen for audio environment changes
socket.on('audio-mode-changed', (data) => {
  console.log(`Audio mode changed to ${data.audio_mode} by ${data.changed_by}`);
  // Update audio system based on new mode
  // Reconfigure WebRTC connections
});

socket.on('speaker-role-granted', (data) => {
  console.log(`${data.speaker} is now the main speaker`);
  // Set up broadcast audio for speaker
});

socket.on('speaker-role-passed', (data) => {
  console.log(`Speaker role passed from ${data.from_user} to ${data.to_user}`);
  // Update speaker audio routing
});

socket.on('spatial-connections-updated', (data) => {
  console.log(`Spatial audio updated: ${data.connections.length} connections`);
  // Update WebRTC peer connections based on spatial relationships
});

💰 Payment & Subscription System

Subscription Tiers

• Pro Monthly: Access to microphone features and priority support
• Mic Credits: Pay-per-use microphone access
• Space Premium: Enhanced features for space owners

Purchase API

// Buy a monthly subscription
const response = await fetch('/api/payments/purchase', {
  method: 'POST',
  headers: { 'Authorization': `Bearer ${hiveSignature}` },
  body: JSON.stringify({
    purchase_type: 'subscription',
    amount: 10.0,
    currency: 'DLUX',
    payment_method: 'dlux_token'
  })
});

// Buy Q&A access ticket for specific space
const response = await fetch('/api/payments/purchase', {
  method: 'POST',
  body: JSON.stringify({
    purchase_type: 'ticket_purchase',
    space_type: 'post',
    space_id: 'author/permlink',
    ticket_type: 'qna_access',
    amount: 5.0
  })
});

Profit Sharing Configuration

Space owners can configure profit sharing:

INSERT INTO profit_sharing_config 
(space_type, space_id, space_owner, platform_fee_percent, creator_share_percent)
VALUES ('post', 'author/permlink', 'author', 10.00, 85.00);

🎫 Access Control & Ticketing

Permission Levels

1. Admin: Space author/creator - can purchase microphones, full control
2. Moderator: Community members - can use microphones with restrictions
3. Subscriber: Paid users - microphone access with time limits
4. Ticket Holder: Per-space paid access - Q&A participation only
5. Guest: Free users - listen only

Q&A Participation

Only users with valid tickets can participate in Q&A sessions:

// Check if user can participate in Q&A
const hasTicket = await checkMicrophonePermission(spaceType, spaceId, userAccount);

if (hasTicket) {
  // Allow Q&A participation
  // Show "Request Mic" button
} else {
  // Show "Buy Q&A Access" button
  // Display pricing information
}

📊 Database Schema

New Tables Added

• space_microphones - Virtual microphone configurations
• microphone_usage - Usage analytics and billing data
• user_subscriptions - Subscription management
• payment_transactions - Payment tracking and profit sharing
• space_tickets - Per-space access tickets
• space_permissions - Enhanced permission system
• profit_sharing_config - Revenue sharing settings

🔧 Integration Examples

Frontend VR Client

class MicrophoneSystem {
  constructor(socket, spaceId) {
    this.socket = socket;
    this.spaceId = spaceId;
    this.currentMicrophone = null;
    this.setupEventListeners();
  }

  setupEventListeners() {
    // Listen for microphone state changes
    this.socket.on('microphone-taken', (data) => {
      if (data.broadcast_mode === 'full_volume') {
        this.enableFullVolumeReceive(data.holder);
      }
      this.updateSpeakerVisual(data.holder, true);
    });

    this.socket.on('microphone-released', () => {
      this.disableFullVolumeReceive();
      this.updateSpeakerVisual(null, false);
    });
  }

  async requestMicrophone(microphoneId) {
    const response = await fetch(`/api/microphones/${microphoneId}/request`, {
      method: 'POST',
      headers: { 'Authorization': `Bearer ${this.authToken}` }
    });

    if (response.ok) {
      const data = await response.json();
      this.currentMicrophone = data.microphone;
      this.startBroadcasting(data.microphone.broadcast_mode);
    }
  }

  startBroadcasting(mode) {
    if (mode === 'full_volume' || mode === 'mixed') {
      // Set up WebRTC broadcast to all users
      this.setupBroadcastConnection();
    }
    
    if (mode === 'spatial_only' || mode === 'mixed') {
      // Maintain spatial audio for nearby VR users
      this.maintainSpatialAudio();
    }
  }
}

Payment Integration

class PaymentSystem {
  async purchaseQAAccess(spaceType, spaceId) {
    const transaction = await fetch('/api/payments/purchase', {
      method: 'POST',
      headers: { 'Authorization': `Bearer ${this.authToken}` },
      body: JSON.stringify({
        purchase_type: 'ticket_purchase',
        space_type: spaceType,
        space_id: spaceId,
        ticket_type: 'qna_access',
        amount: 5.0,
        payment_method: 'dlux_token'
      })
    });

    if (transaction.confirmation_required) {
      // Handle external payment confirmation
      await this.monitorPaymentChannel(transaction.payment_channel_id);
    }

    return transaction;
  }

  async monitorPaymentChannel(channelId) {
    // Monitor blockchain or payment processor for confirmation
    // This would integrate with Hive, Lightning Network, etc.
  }
}

🚀 Deployment Configuration

Environment Variables

# Add to .env file
SYSTEM_ADMINS=admin1,admin2,admin3  # Users who can admin global spaces
TURN_SECRET=your_secure_turn_secret  # For WebRTC authentication

# Payment integration (examples)
HIVE_ACCOUNT=your_hive_account
LIGHTNING_NODE_URL=your_lightning_node
DLUX_TOKEN_CONTRACT=dlux_token_contract_address

Redis Configuration

The system uses Redis for:

• Microphone queues (mic_queue:{microphoneId})
• Payment channel monitoring
• Session caching
• Real-time activity tracking

📈 Analytics & Monitoring

Usage Analytics

-- Get microphone usage statistics
SELECT 
  m.microphone_name,
  COUNT(u.id) as total_sessions,
  AVG(u.duration_seconds) as avg_duration,
  SUM(u.duration_seconds) as total_duration
FROM space_microphones m
LEFT JOIN microphone_usage u ON m.id = u.microphone_id
WHERE m.space_type = 'post' AND m.space_id = 'author/permlink'
GROUP BY m.id, m.microphone_name;

Revenue Analytics

-- Get space revenue and profit sharing
SELECT 
  space_type,
  space_id,
  space_owner,
  SUM(amount) as total_revenue,
  SUM(platform_fee) as platform_revenue,
  SUM(creator_share) as creator_revenue
FROM payment_transactions
WHERE status = 'confirmed'
GROUP BY space_type, space_id, space_owner;

🎯 Use Cases

1. Conference/Presentation: Admin buys main stage mic, passes to speakers
2. Q&A Session: Audience buys tickets, gets access to Q&A microphone queue
3. Community Meeting: Moderators control discussion flow with mic passing
4. VIP Events: Premium ticket holders get priority microphone access
5. Content Creator Monetization: Creators earn revenue from mic purchases and Q&A tickets

🔐 Security Considerations

• Payment Verification: All transactions require external confirmation
• Permission Validation: Multiple layers of access control
• Usage Monitoring: Track microphone usage for billing and abuse prevention
• Anti-Spam: Time limits and usage quotas prevent microphone abuse
• Profit Sharing: Transparent revenue distribution to content creators

This system creates a new paradigm for VR social interaction and content monetization, allowing creators to directly monetize their spaces while providing users with premium interactive experiences.

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The enhanced presence infrastructure provides everything needed for a complete VR social platform while maintaining seamless integration with the existing DLUX ecosystem.