ReX Roadmap

This document outlines the current high-level roadmap for ReX, following the Compositional Content Architecture (ADR-007) and Historical-Collaborative Content Architecture (ADR-008).

Immediate Priorities (Q2-Q3 2025)

Compositional Content Architecture Implementation

• ✅ Architecture Design: Define the compositional architecture foundations
• ✅ Core Interfaces: Establish simple, promise-based content store interface
• 🔄 Function Composition Utilities: Implement pipe() and compose() utilities
• 🔄 Middleware Pattern: Create middleware system for enhancing behavior
• 🔄 Pure Function Foundation: Refactor core functionality to use pure functions
• 🔄 React Integration with Hooks: Create hooks for content access with proper cleanup

Storage Adapters

• 🔄 Base Adapter Interface: Create standardized adapter interface
• 🔄 Node.js FileSystem Adapter: Implement filesystem adapter for Node.js
• 🔄 Memory Adapter: In-memory implementation for testing and temporary content
• 🔄 Browser IndexedDB Adapter: Persistent storage for browser environments
• 🔄 HTTP/Fetch Adapter: Remote content access via fetch API
• ⏳ ServiceWorker Adapter: Support for progressive web apps and offline capabilities

Environment Adaptability

• 🔄 Environment Detection: Implement isNode(), isBrowser() utilities
• 🔄 Capability Testing: Feature detection for available APIs
• 🔄 Build-time Environment Selection: Create environment-specific builds
• 🔄 Progressive Enhancement: Implement feature detection and fallbacks
• ⏳ Isomorphic Wrappers: Develop consistent APIs across environments

Error Handling

• ✅ Standardized Error Classes: Enhanced error hierarchy with context
• 🔄 Error Recovery Patterns: Standardized recovery and fallback strategies
• 🔄 Error Context: Include source, path, and recovery options
• ⏳ Error Boundaries: Create React components for error handling

Medium-Term Priorities (Q3-Q4 2025)

Historical Content Architecture

• ⏳ Operation-Based History: Track all content changes as operations
• ⏳ Version Management: Create, retrieve, and restore named versions
• ⏳ History Visualization: UI for browsing content history
• ⏳ Temporal Queries: Access content as it was at a specific point in time
• ⏳ Change Annotations: Add metadata to content changes

Collaborative Content Infrastructure

• ⏳ Branch Management: Support for parallel content development
• ⏳ Vector Clock Synchronization: Track causality in distributed environments
• ⏳ Conflict Detection: Identify concurrent changes that conflict
• ⏳ Manual Resolution UI: Interface for resolving conflicts
• ⏳ Presence Awareness: Show who is editing what in real-time

Developer Experience

• ⏳ Content Debugging Tools: Browser extension for content inspection
• ⏳ TypeScript Enhancements: Improved type inference and checking
• ⏳ Hot Content Replacement: Update content without page reload
• ⏳ Visual Content Graph: Visualize content relationships
• ⏳ Performance Profiling: Measure and optimize content operations

Long-Term Vision (2026+)

Advanced Collaboration Platform

• ⏳ Real-time Editing: Collaborative editing with operational transforms
• ⏳ Smart Merge Strategies: Auto-resolution of non-conflicting changes
• ⏳ Commenting and Review: Discussion threads attached to content
• ⏳ Workflow Automation: Approval processes and content staging
• ⏳ Access Control: Fine-grained permissions for content operations

Content Authoring Experience

• ⏳ Visual Editor: WYSIWYG interface with MDX support
• ⏳ Content Validation: Schema validation and quality checks
• ⏳ Content Templates: Reusable patterns for common content types
• ⏳ Media Management: Integrated handling of images and media
• ⏳ Publishing Workflow: Staging, scheduling, and versioned publishing

Distributed Content Architecture

• ⏳ Peer-to-Peer Synchronization: Direct content sharing between clients
• ⏳ Offline-First Operations: Full functionality without connectivity
• ⏳ Delta Synchronization: Efficient syncing with minimal data transfer
• ⏳ Distributed Content Graph: Connected content across sources
• ⏳ Cross-Device Continuity: Seamless transition between devices

Implementation Approach

Phase 1: Compositional Foundation (Q2 2025)

• 🔄 Implement core compositional architecture
• 🔄 Create basic storage adapters for Node.js and browser
• 🔄 Build React integration with hooks
• 🔄 Develop environment detection and adaptation
• 🔄 Establish error handling patterns

Phase 2: Enhanced Functionality (Q3 2025)

• ⏳ Implement remaining storage adapters
• ⏳ Create middleware ecosystem for common enhancements
• ⏳ Build progressive web app support
• ⏳ Develop basic historical tracking capabilities
• ⏳ Create basic developer tools

Phase 3: Historical-Collaborative Architecture (Q4 2025)

• ⏳ Implement operation-based history tracking
• ⏳ Create version management system
• ⏳ Build branch-based workflows
• ⏳ Develop vector clock synchronization
• ⏳ Implement conflict detection and resolution

Phase 4: Production Platform (2026)

• ⏳ Create collaboration user interface
• ⏳ Build visual editing tools
• ⏳ Implement publishing workflow
• ⏳ Develop access control system
• ⏳ Create comprehensive documentation and examples

Current Development Status (May 2025)

Completed

• ✅ Architecture Decision Records for new approaches
• ✅ Core interfaces and types
• ✅ Error handling foundation
• ✅ Initial content processing
• ✅ MDX compilation system

In Progress

• 🔄 Compositional architecture implementation
• 🔄 Storage adapter foundations
• 🔄 Environment-specific optimizations
• 🔄 React integration with hooks
• 🔄 Function composition utilities

Planned Next

• ⏳ Complete storage adapter implementations
• ⏳ Middleware composition system
• ⏳ Progressive web app support
• ⏳ Enhanced developer experience
• ⏳ Initial historical content tracking

Connections to Architecture

This roadmap directly implements the architecture defined in:

• ADR-007: Compositional Content Architecture
• ADR-008: Historical-Collaborative Content Architecture

The implementation follows these architectural principles:

1. Function Composition Over Inheritance: Building complex behaviors through function composition
2. Pure Functions with Explicit Dependencies: Predictable functions with clear dependencies
3. Promise-Based APIs: Asynchronous operations using promises
4. Environment Adaptability: Different implementations for different runtime environments
5. Operation-Based History: Tracking all content changes as operations
6. Vector Clock Synchronization: Using vector clocks for distributed content operations

Legend

• ✅ Complete: Feature is fully implemented
• 🔄 In Progress: Feature is currently being worked on
• ⏳ Planned: Feature is planned but not yet started
• 🚫 Blocked: Feature is blocked by dependencies
• ⭐ Priority: High-priority feature