# Organization Gaps Analysis

## Current State

### Existing Files
- `.gitignore` - Git ignore patterns
- `docs/FEATURES.md` - Feature documentation
- `docs/PROJECT_STRUCTURE.md` - Architecture and file structure
- `docs/FUNCTIONAL_ANALYSIS.md` - FP concepts analysis
- `docs/FP_PATTERNS.md` - FP implementation patterns
- `docs/FP_MODULE_ARCHITECTURE.md` - FP module specifications

### What's Missing

## Critical Missing Files (Priority 1)

### 1. Root Level Documentation

**README.md**
- Project overview and purpose
- Quick start guide
- Installation instructions
- Basic usage examples
- Links to detailed documentation
- Contributing guidelines (summary)

**LICENSE**
- Choose license (MIT, Apache 2.0, GPL?)
- Critical for open source adoption
- Needed before any release

**pyproject.toml**
- Project metadata (name, version, description)
- Dependencies configuration
- Build system settings
- Tool configurations (ruff, mypy, pytest)
- CLI entry point definition
- Currently blocking any development work

### 2. Contribution Guidelines

**CONTRIBUTING.md**
- How to set up development environment
- Code style guidelines
- Commit message conventions
- Pull request process
- Testing requirements
- Development workflow (using uv)

### 3. Change Management

**CHANGELOG.md**
- Version history
- Breaking changes
- New features
- Bug fixes
- Follow Keep a Changelog format

### 4. Code Standards

**docs/CODE_STANDARDS.md**
- Python style guide (ruff configuration)
- Naming conventions
- Type hint requirements
- Documentation standards
- FP pattern usage guidelines
- Error handling conventions

## Important Missing Files (Priority 2)

### 5. Testing Documentation

**docs/TESTING.md**
- Testing philosophy
- How to run tests (with uv)
- Writing unit tests
- Writing integration tests
- Property-based testing with hypothesis
- Test coverage requirements
- Fixture usage

### 6. Error Handling Strategy

**docs/ERROR_HANDLING.md**
- Error categories
- When to use Result vs exceptions
- Error message standards
- User-facing vs internal errors
- Exit code mapping
- Error recovery strategies

### 7. Configuration

**.env.example**
- Environment variable template
- Development vs production settings
- Logging configuration
- Performance tuning options

**.python-version**
- Python version requirement (3.11+ recommended for modern features)

### 8. Development Scripts

**scripts/setup.sh**
- Initial project setup
- Virtual environment creation
- Pre-commit hooks installation
- Development dependencies

**scripts/run_tests.sh**
- Run all tests
- Run with coverage
- Run specific test categories

**scripts/format.sh**
- Run ruff format
- Run ruff check
- Fix auto-fixable issues

### 9. CI/CD Configuration

**.github/workflows/ci.yml**
- Run tests on push/PR
- Test matrix (Python versions, OS)
- Code quality checks (ruff, mypy)
- Coverage reporting

**.github/workflows/release.yml**
- Automated releases
- Build distributions
- Publish to PyPI

### 10. Pre-commit Configuration

**.pre-commit-config.yaml**
- Ruff (linting + formatting)
- Mypy (type checking)
- Custom hooks for project-specific checks

## Nice to Have (Priority 3)

### 11. Design Documentation

**docs/ADR/** - Architecture Decision Records
- ADR-001-chose-typer.md
- ADR-002-custom-fp-implementation.md
- ADR-003-result-type-error-handling.md
- ADR-004-uv-package-manager.md

Each ADR should document:
- Context
- Decision
- Consequences
- Alternatives considered

### 12. API Documentation

**docs/API.md**
- Public API reference
- fp/ module API
- core/ module API (if reusable)
- Type signatures
- Usage examples

### 13. Performance Guidelines

**docs/PERFORMANCE.md**
- Large file handling strategy
- Memory optimization
- Chunking strategy
- Parallel processing opportunities
- Benchmark results

### 14. Security Considerations

**docs/SECURITY.md**
- Input validation requirements
- File handling security (path traversal)
- Formula injection prevention
- Dependency vulnerability scanning
- Security reporting process

### 15. Deployment Guide

**docs/DEPLOYMENT.md**
- Building distributions
- Publishing to PyPI
- Release checklist
- Version bumping process
- Migration guides for breaking changes

### 16. Troubleshooting

**docs/TROUBLESHOOTING.md**
- Common issues
- Installation problems
- File format issues
- Performance issues
- Getting help

## Development Workflow Missing Elements

### Development Environment

**requirements.txt** (alternative to pyproject.toml)
- For users who don't use uv
- Generated from pyproject.toml

**dev-requirements.txt**
- Development dependencies
- Testing dependencies

### IDE Configuration

**.vscode/settings.json**
- Python interpreter
- Ruff configuration
- Mypy configuration
- Test configuration

**.idea/** (JetBrains)
- Similar IDE-specific settings

### Documentation Tools

**docs/_templates/** - Sphinx templates (if using Sphinx)
- HTML theme
- Custom CSS
- Navigation structure

**docs/Makefile** - Build documentation

### Version Management

**.versionrc** - Standard version configuration
- Changelog format
- Bumping rules
- Tag format

## Organizational Improvements

### Documentation Structure

Current docs/ is good but could be better organized:

```
docs/
├── README.md (overview of all docs)
├── FEATURES.md
├── PROJECT_STRUCTURE.md
├── FUNCTIONAL_ANALYSIS.md
├── FP_PATTERNS.md
├── FP_MODULE_ARCHITECTURE.md
├── CODE_STANDARDS.md
├── TESTING.md
├── ERROR_HANDLING.md
├── API.md
├── PERFORMANCE.md
├── SECURITY.md
├── TROUBLESHOOTING.md
├── DEPLOYMENT.md
├── CONTRIBUTING.md (could be at root)
├── ADR/
│   ├── README.md
│   ├── 001-chose-typer.md
│   ├── 002-custom-fp.md
│   └── ...
└── architecture/
    ├── overview.md
    ├── data-flow.md
    └── diagrams/
```

### Project Templates

**templates/** - Example files for users
- Example Excel files
- Example CSV files
- Example workflows
- Template configurations

## Immediate Action Items (Ordered by Priority)

### Phase 0: Foundation (MUST HAVE before coding)

1. **pyproject.toml** - Blocks all development
   - Define dependencies
   - Configure tools
   - Entry points

2. **README.md** - Project visibility
   - What is this project?
   - Why does it exist?
   - How to get started?

3. **LICENSE** - Legal requirement
   - Choose and add license file

### Phase 1: Development Standards

4. **CONTRIBUTING.md** - Developer onboarding
5. **docs/CODE_STANDARDS.md** - Code consistency
6. **docs/ERROR_HANDLING.md** - Error handling philosophy
7. **docs/TESTING.md** - Testing guidelines

### Phase 2: Development Tools

8. **scripts/setup.sh** - Automated setup
9. **scripts/run_tests.sh** - Test runner
10. **.pre-commit-config.yaml** - Code quality gates
11. **.github/workflows/ci.yml** - CI/CD

### Phase 3: Quality of Life

12. **CHANGELOG.md** - Version tracking
13. **docs/TROUBLESHOOTING.md** - User support
14. **.env.example** - Configuration template
15. **docs/ADR/** - Decision documentation

### Phase 4: Advanced

16. **docs/PERFORMANCE.md** - Optimization guide
17. **docs/SECURITY.md** - Security guidelines
18. **docs/API.md** - Public API reference
19. **docs/DEPLOYMENT.md** - Release process

## Recommended Next Steps

### 1. Create pyproject.toml First

This is the highest priority item because:
- Needed for uv init
- Blocks dependency installation
- Required for any development work
- Defines project metadata

### 2. Create README.md

Essential for:
- Project discoverability
- Developer onboarding
- User understanding
- Documentation structure

### 3. Add LICENSE

Needed before:
- Any public release
- Accepting contributions
- Widespread adoption

### 4. Create CONTRIBUTING.md

Important for:
- Clear contribution process
- Setting development standards
- Reducing onboarding friction

### 5. Initialize git repository

Currently not a git repo (from .gitignore content):
```bash
git init
git add .
git commit -m "Initial commit: documentation and project structure"
```

## Estimated Documentation Effort

| Document | Complexity | Time Estimate |
|----------|-----------|---------------|
| pyproject.toml | Medium | 30-60 min |
| README.md | Low | 30-45 min |
| LICENSE | Trivial | 5 min |
| CONTRIBUTING.md | Medium | 45-60 min |
| CODE_STANDARDS.md | Medium | 30-45 min |
| TESTING.md | Medium | 45-60 min |
| ERROR_HANDLING.md | Medium | 30-45 min |
| CHANGELOG.md | Low | 15 min |
| .env.example | Trivial | 5 min |
| .pre-commit-config.yaml | Low | 15 min |
| CI workflows | Medium | 45-60 min |
| Scripts (setup, tests) | Low | 30-45 min |
| ADR system | Low | 30-45 min per ADR |
| API.md | High | 2-3 hours |
| PERFORMANCE.md | High | 2-3 hours |
| SECURITY.md | Medium | 45-60 min |
| TROUBLESHOOTING.md | Low | 30-45 min |
| DEPLOYMENT.md | Medium | 45-60 min |

**Total for Phase 0-1**: ~4-6 hours
**Total for all phases**: ~15-20 hours

## Risk Assessment

### High Risk Items (Missing)

1. **No pyproject.toml**: Cannot install dependencies, cannot run code
2. **No README.md**: Project purpose unclear to new contributors
3. **No LICENSE**: Legal uncertainty, limits adoption

### Medium Risk Items

4. **No CONTRIBUTING.md**: Inconsistent contributions, unclear process
5. **No CODE_STANDARDS.md**: Inconsistent code style
6. **No ERROR_HANDLING.md**: Inconsistent error handling
7. **No testing docs**: Unclear testing expectations

### Low Risk Items

8. Missing CI/CD: Can be added later
9. Missing ADRs: Can be added retrospectively
10. Missing detailed docs: Can evolve with project

## Summary

### Critical Gaps (Block Development)
- pyproject.toml
- README.md
- LICENSE

### Important Gaps (Block Quality)
- CONTRIBUTING.md
- CODE_STANDARDS.md
- ERROR_HANDLING.md
- TESTING.md
- .pre-commit-config.yaml

### Nice to Have
- CHANGELOG.md
- ADR system
- API.md
- PERFORMANCE.md
- SECURITY.md
- TROUBLESHOOTING.md
- DEPLOYMENT.md

### Recommendation

Start with **Phase 0** (pyproject.toml, README.md, LICENSE) before writing any code. These are foundational and blocking.

Then add **Phase 1** documentation (CONTRIBUTING, CODE_STANDARDS, ERROR_HANDLING, TESTING) to establish development standards.

**Phase 2-4** can be added incrementally as the project grows.

Would you like me to create any of these missing documents?
