waaraawa_ByteGrid/roadmap.md

# ByteGrid Development Roadmap

**Last Updated:** 2025-10-14
**Current Phase:** Phase 2 (Core Features)

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## Phase 1: MVP ✅ COMPLETED

**Goal:** Basic structure visualization with manual field definition

### Completed Features

- [x] Project structure setup (monorepo with core + plugin)
- [x] Basic type definitions (ByteGridConfig, Field, LayoutBlock)
- [x] YAML parser with js-yaml
- [x] Field validation (overlap detection, range checking)
- [x] Simple layout engine (single row)
- [x] Basic SVG renderer
- [x] Obsidian plugin integration
- [x] Test infrastructure (Jest)

**Status:** ✅ All core functionality implemented

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## Phase 2: Core Features 🚧 IN PROGRESS

**Goal:** Robust visualization with advanced layout options

### Completed Features ✅

- [x] Multi-row layout support
- [x] Grid lines rendering
- [x] Color system (9 predefined colors)
- [x] Bitfield visualization (sub-byte fields)
- [x] Bit-unit layout mode (`layoutUnit: bit`)
- [x] Suffix notation (`32b`, `4B`)
- [x] Legend position control (`legendPosition: right/left/bottom/none`)
- [x] Legend multi-column layout (`legendColumns`)
- [x] Footer visibility control (`showFooter: true/false`)
- [x] Color schemes (default, dark, light modes)
- [x] Auto color assignment (`autoColor: true/false`)
- [x] Comprehensive test coverage (141 tests)

### In Progress 🔄

- [ ] Row/column labels customization
- [ ] Cell padding/spacing options

### Planned Features 📋

- [ ] Hex dump display (`showHexDump: true`)
- [ ] Bit order selection (`bitOrder: 'msb'/'lsb'`)
  - MSB first: 7-6-5-4-3-2-1-0 (default, current behavior)
  - LSB first: 0-1-2-3-4-5-6-7
- [ ] Field description tooltips
- [ ] Value display formatting (hex, decimal, binary)
- [ ] Endianness indicators

**Target Completion:** Q4 2025

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## Phase 3: Interactive Features 📅 PLANNED

**Goal:** Rich user interaction and real-time visualization

### Features

- [ ] Interactive tooltips on hover
  - Field name, type, offset
  - Description and value
  - Bit range for bitfields
- [ ] Field highlighting
  - Click to highlight field
  - Show all related blocks
  - Copy field info to clipboard
- [ ] Zoom controls
  - Zoom in/out
  - Pan/scroll for large structures
- [ ] Search/filter fields
  - Search by name or type
  - Filter by color or category
- [ ] Export options
  - Export as SVG file
  - Export as PNG image
  - Export as C struct definition
  - Copy as Markdown table

**Target Start:** Q1 2026

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## Phase 4: Advanced Features 📅 FUTURE

**Goal:** Binary file integration and advanced analysis

### Binary File Support

- [ ] Binary file parser (`binaryParser.ts`)
  - Read binary files
  - Auto-populate field values
  - Endianness handling
  - Generate hex dump
- [ ] File format templates
  - WAV_HEADER (audio files)
  - ELF_HEADER (executables)
  - TCP_HEADER (network packets)
  - PNG_HEADER (image files)
  - Custom template system

### Structure Analysis

- [ ] Structure comparison (`comparison.ts`)
  - Side-by-side view
  - Overlay view
  - Diff highlighting
- [ ] Padding analysis
  - Auto-detect padding bytes
  - Show memory waste
  - Suggest optimizations
- [ ] Alignment visualization
  - Show alignment boundaries
  - Detect misaligned fields
  - Platform-specific rules

**Target Start:** Q2 2026

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## Phase 5: Performance & Scale 📅 FUTURE

**Goal:** Handle large structures and optimize rendering

### Performance Optimization

- [ ] Rendering cache (`cache.ts`)
  - Hash-based cache keys
  - TTL-based expiration
  - localStorage persistence
- [ ] Virtual scrolling
  - Lazy render large structures
  - Only render visible rows
  - Smooth scrolling
- [ ] Pagination
  - Break large structures (>1000 bytes)
  - Page navigation controls
  - Jump to offset

### Large Structure Support

- [ ] Performance benchmarks
  - 1KB: < 100ms
  - 10KB: < 500ms
  - 100KB: < 2s (with pagination)
- [ ] Memory optimization
  - Efficient data structures
  - DOM node recycling
  - Progressive rendering

**Target Start:** Q3 2026

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## Phase 6: Extensibility 📅 FUTURE

**Goal:** Plugin system and customization

### Custom Extensions

- [ ] Type system extensions
  - Custom type definitions
  - Type aliases
  - Nested structures
  - Union types
- [ ] Custom color schemes
  - User-defined palettes
  - Theme import/export
  - Dark/light mode auto-switch
- [ ] Render hooks
  - Pre-render processing
  - Post-render modifications
  - Custom SVG elements
- [ ] Plugin API
  - Register custom parsers
  - Add custom validators
  - Extend layout engine

### Developer Tools

- [ ] Debug mode
  - Show internal state
  - Performance metrics
  - Error details
- [ ] Documentation generator
  - Auto-generate type docs
  - Example templates
  - Interactive playground

**Target Start:** Q4 2026

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## Current Sprint (October 2024)

### Completed This Sprint ✅

- [x] Bit-unit layout implementation
- [x] Legend position options (right, left, bottom, none)
- [x] Footer visibility control
- [x] Fix legend overlapping issues
- [x] Add comprehensive tests for new features
- [x] Documentation updates

### Next Sprint Goals (November 2024)

1. **Color Schemes** (Priority: High)
   - Implement dark and light color schemes
   - Add `colorScheme` option to config
   - Update color constants
   - Add tests

2. **Hex Dump Display** (Priority: Medium)
   - Add `showHexDump` option
   - Render hex values below grid
   - Format with proper spacing
   - Handle large structures

3. **Documentation** (Priority: High)
   - Create user guide in docs/
   - Add more examples
   - API reference cleanup

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## Known Limitations & Future Improvements

### Current Limitations

1. **YAML Line Numbers**
   - Error messages show field index, not line number
   - **Improvement:** Custom YAML parser with position tracking

2. **Cache Persistence**
   - Cache cleared on session end
   - **Improvement:** localStorage persistence (Phase 5)

3. **Type System**
   - No custom type definitions
   - No nested structures
   - **Improvement:** Type alias system (Phase 6)

4. **Bit Ordering**
   - Assumes MSB-first
   - **Improvement:** Add `bitOrder: msb/lsb` option

5. **Layout Constraints**
   - Fixed cell sizes per visualization
   - **Improvement:** Responsive cell sizing

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## Contributing

See [CONTRIBUTING.md](../CONTRIBUTING.md) for guidelines on:

- Proposing new features
- Submitting pull requests
- Testing requirements
- Code style guidelines

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## Versioning Strategy

Following **Semantic Versioning** (MAJOR.MINOR.PATCH):

- **MAJOR:** Breaking changes to public API
- **MINOR:** New features, backward compatible
- **PATCH:** Bug fixes, performance improvements

### Planned Releases

- **v0.2.0** - Phase 2 completion (Color schemes, hex dump)
- **v0.3.0** - Phase 3 start (Interactive features)
- **v1.0.0** - Production ready (All core features stable)
- **v2.0.0** - Phase 4-5 (Binary files, performance)

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## Feedback & Priorities

Feature priorities may change based on:

- User feedback and requests
- Community contributions
- Technical dependencies
- Performance considerations

To suggest features or vote on priorities:

- Open an issue on GitHub
- Join discussions in the community
- Contribute code or documentation

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**Document Version:** 1.0
**Next Review:** December 2024