Code Standards

Comprehensive coding standards and best practices for SOLVEFORCE projects, ensuring consistency, maintainability, and quality across all development efforts.

📋 General Principles

🎯 Core Values

Code Quality:

Write clean, readable, and maintainable code
Follow established patterns and conventions
Prioritize clarity over cleverness
Document complex logic and business rules
Write self-documenting code with meaningful names

Consistency:

Use consistent naming conventions across projects
Follow established architectural patterns
Maintain uniform code formatting
Apply standards consistently across teams
Document deviations with clear reasoning

Security:

Follow secure coding practices
Validate all inputs and sanitize outputs
Use proper authentication and authorization
Implement least privilege principles
Regular security code reviews

📚 Documentation Standards

✍️ Markdown Guidelines

File Structure:

# Page Title (H1) - One per page, descriptive and clear

*Brief description or tagline in italics*

---

## 🌍 Overview (H2)
Clear overview section with purpose and scope

---

## 🚀 Main Sections (H2)
### Subsections (H3)
#### Details (H4) - Use sparingly

---

## 📞 Contact/Conclusion
Standard contact information and closing

Content Standards:

Use clear, concise language
Write for the target audience level
Include practical examples and use cases
Maintain consistent terminology
Update content regularly for accuracy

Formatting Rules:

# Headers
- Use descriptive headers with emojis for visual navigation
- Maintain logical hierarchy (H1 → H2 → H3 → H4)
- Avoid skipping header levels

# Text Formatting
**Bold** for emphasis and important terms
*Italics* for definitions and foreign terms
`Code snippets` for technical terms and values
> Blockquotes for important notes and warnings

# Lists
- Use bullet points for unordered information
1. Use numbered lists for procedures and sequences
- Keep list items parallel in structure

# Links
[Descriptive link text](./relative-path.md) for internal links
[External Resource](https://example.com) for external links
- Always use descriptive link text, never "click here"

# Code Blocks
```language
// Include syntax highlighting
// Add comments for clarity
// Show complete, working examples

Tables

Column 1	Column 2	Column 3
Data	Data	Data

Use tables for structured comparisons
Keep table content concise
Include headers for all columns


### 📊 **Content Organization**

**Page Structure:**
1. **Title and Description**: Clear page purpose
2. **Overview Section**: Context and scope
3. **Main Content**: Organized in logical sections
4. **Technical Details**: Specifications and examples
5. **Implementation**: Practical guidance
6. **Contact Information**: Support and next steps

**Section Guidelines:**
- Use consistent emoji navigation (🚀 🔧 📊 💰 📞)
- Include practical examples in each section
- Provide actionable next steps
- Cross-reference related content
- Update regularly to maintain accuracy

---

## 💻 Code Development Standards

### 🐍 **Python Standards**

**Code Style:**
```python
# Follow PEP 8 style guidelines
# Use meaningful variable and function names
# Include docstrings for all functions and classes

def calculate_monthly_recurring_cost(
    base_price: float,
    discount_rate: float = 0.0,
    tax_rate: float = 0.0
) -> float:
    """
    Calculate monthly recurring cost with discounts and taxes.
    
    Args:
        base_price: Base monthly price before adjustments
        discount_rate: Discount as decimal (0.1 = 10%)
        tax_rate: Tax rate as decimal (0.08 = 8%)
    
    Returns:
        Final monthly cost including all adjustments
    
    Example:
        >>> calculate_monthly_recurring_cost(100.0, 0.1, 0.08)
        97.2
    """
    discounted_price = base_price * (1 - discount_rate)
    final_price = discounted_price * (1 + tax_rate)
    return round(final_price, 2)

# Use type hints for better code documentation
# Include error handling for edge cases
# Write comprehensive docstrings with examples

Project Structure:

project/
├── src/
│   ├── __init__.py
│   ├── api/
│   │   ├── __init__.py
│   │   ├── auth.py
│   │   └── endpoints.py
│   ├── models/
│   │   ├── __init__.py
│   │   └── service.py
│   └── utils/
│       ├── __init__.py
│       └── helpers.py
├── tests/
│   ├── __init__.py
│   ├── test_api.py
│   └── test_models.py
├── docs/
├── requirements.txt
├── setup.py
└── README.md

🌐 JavaScript/TypeScript Standards

Code Style:

// Use TypeScript for better type safety
// Follow ESLint and Prettier configurations
// Use meaningful variable and function names

interface ServicePricing {
  basePrice: number;
  currency: string;
  billingCycle: 'monthly' | 'annual';
  discounts?: Discount[];
}

interface Discount {
  type: 'percentage' | 'fixed';
  value: number;
  description: string;
}

/**
 * Calculate total service cost with applied discounts
 * @param pricing - Service pricing configuration
 * @returns Calculated total cost
 */
function calculateServiceCost(pricing: ServicePricing): number {
  let totalCost = pricing.basePrice;
  
  if (pricing.discounts) {
    for (const discount of pricing.discounts) {
      if (discount.type === 'percentage') {
        totalCost *= (1 - discount.value / 100);
      } else {
        totalCost -= discount.value;
      }
    }
  }
  
  return Math.round(totalCost * 100) / 100; // Round to 2 decimal places
}

// Use const for immutable values
// Use let for mutable variables
// Avoid var entirely
// Use arrow functions for concise syntax

Project Structure:

frontend/
├── src/
│   ├── components/
│   │   ├── common/
│   │   ├── services/
│   │   └── dashboard/
│   ├── types/
│   │   ├── api.ts
│   │   └── service.ts
│   ├── utils/
│   │   ├── api.ts
│   │   └── formatting.ts
│   ├── hooks/
│   │   └── useServiceData.ts
│   └── pages/
│       ├── Dashboard.tsx
│       └── Services.tsx
├── public/
├── tests/
├── package.json
├── tsconfig.json
└── README.md

🔧 Configuration Management

Environment Variables:

# Use environment variables for configuration
# Never commit sensitive data to version control
# Document all required environment variables

# .env.example
API_BASE_URL=https://api.solveforce.com/v1
API_TIMEOUT=30000
LOG_LEVEL=info
DATABASE_URL=postgresql://localhost:5432/solveforce
REDIS_URL=redis://localhost:6379
JWT_SECRET=your-secret-key

Configuration Files:

# config.yml - Use YAML for complex configurations
api:
  base_url: ${API_BASE_URL}
  timeout: ${API_TIMEOUT:30000}
  rate_limit:
    requests_per_minute: 1000
    burst_limit: 100

database:
  url: ${DATABASE_URL}
  pool_size: 10
  timeout: 30

logging:
  level: ${LOG_LEVEL:info}
  format: json
  output: stdout

🔒 Security Standards

🛡️ Authentication & Authorization

API Security:

# Always use HTTPS in production
# Implement proper authentication
# Use JWT tokens with expiration
# Validate all inputs

from flask import Flask, request, jsonify
from functools import wraps
import jwt

def require_auth(f):
    @wraps(f)
    def decorated_function(*args, **kwargs):
        token = request.headers.get('Authorization')
        if not token:
            return jsonify({'error': 'No authorization header'}), 401
        
        try:
            # Remove 'Bearer ' prefix
            token = token.replace('Bearer ', '')
            payload = jwt.decode(token, app.config['JWT_SECRET'], algorithms=['HS256'])
            request.user = payload
        except jwt.ExpiredSignatureError:
            return jsonify({'error': 'Token expired'}), 401
        except jwt.InvalidTokenError:
            return jsonify({'error': 'Invalid token'}), 401
        
        return f(*args, **kwargs)
    return decorated_function

@app.route('/api/services')
@require_auth
def get_services():
    # Always validate user permissions
    # Log access attempts
    # Return appropriate error codes
    pass

Input Validation:

# Validate all inputs using schemas
from marshmallow import Schema, fields, validate

class ServiceRequestSchema(Schema):
    name = fields.Str(required=True, validate=validate.Length(min=1, max=100))
    type = fields.Str(required=True, validate=validate.OneOf(['fiber', 'ethernet', 'wireless']))
    bandwidth = fields.Int(required=True, validate=validate.Range(min=1, max=10000))
    location = fields.Str(required=True, validate=validate.Length(min=1, max=200))

# Use the schema to validate requests
schema = ServiceRequestSchema()
try:
    result = schema.load(request.json)
except ValidationError as err:
    return jsonify({'errors': err.messages}), 400

🔐 Data Protection

Sensitive Data Handling:

# Never log sensitive information
# Use proper encryption for stored data
# Implement data anonymization

import logging
from cryptography.fernet import Fernet

# Configure logging to exclude sensitive fields
class SensitiveDataFilter(logging.Filter):
    def filter(self, record):
        # Remove sensitive data from log messages
        if hasattr(record, 'msg'):
            record.msg = record.msg.replace(record.password, '***')
        return True

# Encrypt sensitive data before storage
def encrypt_sensitive_data(data: str, key: bytes) -> str:
    f = Fernet(key)
    encrypted_data = f.encrypt(data.encode())
    return encrypted_data.decode()

🧪 Testing Standards

✅ Test Structure

Test Organization:

# Follow AAA pattern: Arrange, Act, Assert
# Use descriptive test names
# Include both positive and negative test cases

import pytest
from unittest.mock import Mock, patch
from src.api.services import ServiceManager

class TestServiceManager:
    def setup_method(self):
        """Set up test fixtures before each test method."""
        self.service_manager = ServiceManager()
        self.mock_database = Mock()
    
    def test_create_service_with_valid_data_returns_service_id(self):
        """Test service creation with valid input data."""
        # Arrange
        service_data = {
            'name': 'Test Fiber Service',
            'type': 'fiber',
            'bandwidth': 1000,
            'location': 'Dallas, TX'
        }
        expected_service_id = 'svc_123456'
        self.mock_database.insert.return_value = expected_service_id
        
        # Act
        with patch.object(self.service_manager, 'database', self.mock_database):
            result = self.service_manager.create_service(service_data)
        
        # Assert
        assert result == expected_service_id
        self.mock_database.insert.assert_called_once_with(service_data)
    
    def test_create_service_with_invalid_data_raises_validation_error(self):
        """Test service creation fails with invalid input data."""
        # Arrange
        invalid_data = {
            'name': '',  # Invalid: empty name
            'type': 'invalid_type',  # Invalid: unsupported type
            'bandwidth': -1  # Invalid: negative bandwidth
        }
        
        # Act & Assert
        with pytest.raises(ValidationError) as exc_info:
            self.service_manager.create_service(invalid_data)
        
        assert 'name' in str(exc_info.value)
        assert 'type' in str(exc_info.value)
        assert 'bandwidth' in str(exc_info.value)

Test Coverage:

# Maintain minimum 80% test coverage
# Focus on critical business logic
# Include integration tests for API endpoints

# Run tests with coverage
pytest --cov=src --cov-report=html --cov-report=term-missing

# Coverage configuration in .coveragerc
[run]
source = src/
omit = 
    */tests/*
    */venv/*
    */migrations/*

[report]
exclude_lines =
    pragma: no cover
    def __repr__
    raise AssertionError
    raise NotImplementedError

🔄 Continuous Integration

GitHub Actions Workflow:

# .github/workflows/test.yml
name: Test Suite

on:
  push:
    branches: [ main, develop ]
  pull_request:
    branches: [ main ]

jobs:
  test:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        python-version: [3.8, 3.9, '3.10', '3.11']
    
    steps:
    - uses: actions/checkout@v3
    
    - name: Set up Python ${{ matrix.python-version }}
      uses: actions/setup-python@v3
      with:
        python-version: ${{ matrix.python-version }}
    
    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install -r requirements.txt
        pip install -r requirements-dev.txt
    
    - name: Run linting
      run: |
        flake8 src/ tests/
        mypy src/
    
    - name: Run tests
      run: |
        pytest --cov=src --cov-report=xml
    
    - name: Upload coverage to Codecov
      uses: codecov/codecov-action@v3
      with:
        file: ./coverage.xml

📦 Build and Deployment Standards

🔨 Build Process

Documentation Build:

#!/bin/bash
# build.sh - Automated build script

set -e  # Exit on any error

echo "Starting build process..."

# Clean previous builds
echo "Cleaning previous builds..."
rm -rf book/
./mdbook.exe clean

# Validate markdown files
echo "Validating markdown files..."
markdownlint src/**/*.md

# Check for broken links
echo "Checking for broken links..."
find src -name "*.md" -exec grep -l "](.*\.md)" {} \; | xargs -I {} bash -c 'echo "Checking {}" && grep -o "](.*\.md)" {} | sed "s/](\.\///" | sed "s/)//" | while read link; do [ -f "src/$link" ] || echo "Broken link: $link in {}"; done'

# Build documentation
echo "Building documentation..."
./mdbook.exe build

# Verify build output
echo "Verifying build output..."
[ -f "book/index.html" ] || (echo "Build failed: index.html not found" && exit 1)

echo "Build completed successfully!"

Version Management:

{
  "name": "solveforce-docs",
  "version": "1.2.3",
  "description": "SOLVEFORCE comprehensive documentation",
  "scripts": {
    "build": "mdbook build",
    "serve": "mdbook serve",
    "test": "markdownlint src/**/*.md",
    "clean": "mdbook clean"
  },
  "devDependencies": {
    "markdownlint-cli": "^0.37.0"
  }
}

🚀 Deployment Pipeline

Production Deployment:

# .github/workflows/deploy.yml
name: Deploy to Production

on:
  push:
    branches: [ main ]

jobs:
  deploy:
    runs-on: ubuntu-latest
    
    steps:
    - uses: actions/checkout@v3
    
    - name: Setup mdBook
      uses: peaceiris/actions-mdbook@v1
      with:
        mdbook-version: '0.4.40'
    
    - name: Build documentation
      run: mdbook build
    
    - name: Deploy to GitHub Pages
      uses: peaceiris/actions-gh-pages@v3
      with:
        github_token: ${{ secrets.GITHUB_TOKEN }}
        publish_dir: ./book
        cname: docs.solveforce.com