[Feature]: Implement WebRTC P2P Connection Manager with Reconnection Logic

[ixchio]

🔗 P2P Connection Manager Implementation

Overview

Implement a robust WebRTC-based peer-to-peer connection manager that handles real-time code collaboration between users. This is a core architectural component that enables decentralized collaboration without central servers.

Background

The P2P architecture is documented in the README but not yet fully implemented. We need a production-ready connection manager that handles:

• ICE candidate negotiation
• STUN/TURN server communication
• Connection state management
• Automatic reconnection with exponential backoff
• Graceful degradation

Technical Requirements

Data Channels (as per README spec)

Channel	Purpose	Priority
code-sync	Real-time code delta sync	Critical
cursor-pos	Cursor position broadcast	High
ai-stream	AI response streaming	Critical
presence	User presence/status	Normal
files	Large file transfer	Low

Implementation Phases

Phase 1: Core Manager

• Create lib/p2p/connection-manager.ts
• Implement RTCPeerConnection wrapper
• Add ICE candidate handling

Phase 2: Data Channels

• Implement data channel factory
• Create channel-specific message protocols

Phase 3: Reconnection

• Implement exponential backoff
• Add connection state machine
• Implement TURN fallback logic

Phase 4: React Integration

• Create useP2PConnection hook
• Add connection status indicator UI

Acceptance Criteria

• Two peers can establish a WebRTC connection
• All 5 data channels are properly initialized
• Connection automatically reconnects on failure
• Unit test coverage > 80%

---

Estimated time: 10-15 hours
Difficulty: Hard ⭐⭐⭐⭐
Prerequisites: WebRTC experience, TypeScript, React hooks

[github-actions]

This issue has been automatically marked as stale because it hasn't had recent activity.

It will be closed in 7 days if no further activity occurs. If this issue is still relevant:

• Add a comment with any updates
• Remove the stale label

Thank you for your contributions to Groq Coder.