Contributing

Status: 🚧 Documentation in progress

Overview

Welcome to the p2d2 project! This document describes the guidelines and processes for contributing to the project. We welcome any contribution that helps improve the p2d2 platform.

How to Contribute

1. Create an Issue

• Create an issue before making a code contribution
• Clear description of the problem or feature
• Assign relevant labels (bug, feature, enhancement, etc.)

2. Set up Development Environment

git clone https://gitlab.opencode.de/OC000028072444/p2d2.git
cd p2d2
npm install
npm run dev

3. Create a Feature Branch

git checkout -b feature/feature-name
# or
git checkout -b fix/bug-description

4. Develop Changes

• Write code according to best practices
• Use TypeScript for type-safe development
• Write tests for new functionality
• Update documentation

5. Commit Messages

feat: Add new map functionality
fix: Resolve layer loading error
docs: Expand API documentation
test: Unit tests for utility functions

6. Create a Pull Request

• Description of changes
• Reference to relevant issues
• Screenshots for UI changes
• Testing results

Code Guidelines

TypeScript

• Strict mode enabled
• Explicit type definitions
• No any types without justification
• Interface segregation

Styling

• TailwindCSS utility classes
• Responsive design (mobile-first)
• Consistent design tokens

Testing

• Unit tests for utility functions
• Integration tests for components
• E2E tests for critical paths

Review Process

1. Automated Checks

• TypeScript compilation
• ESLint and Prettier
• Unit tests
• Build validation

2. Code Review

• At least 1 reviewer required
• Constructive feedback
• Focus on code quality and architecture

3. Merge Policy

• All checks must pass
• Approvals from reviewers
• No merge conflicts

Communication

Issue Discussions

• Clear problem description
• Reproducible steps
• Expected vs. actual behavior

Code Review Comments

• Constructive and respectful
• Specific improvement suggestions
• Justification for changes

Area-Specific Guidelines

Map Development

• OpenLayers best practices
• Performance optimization for large datasets
• Cross-browser compatibility

UI Components

• Reusability
• Accessibility (WCAG 2.1)
• Responsive design

Backend Functions

• Error handling and validation
• Security considerations
• Performance monitoring

Avoid Common Mistakes

❌ To Avoid

• Direct DOM manipulation
• Global variables
• Complex nested callbacks
• Untested code

✅ Recommended

• Declarative programming
• Immutable data structures
• Async/Await instead of callbacks
• Component-based architecture

Next Steps

• [ ] Document detailed development environment
• [ ] Code examples for common patterns
• [ ] Expand testing guide
• [ ] Add performance best practices

Support

For questions about the contribution process:

• Create an issue in the GitLab repository
• Contact the development team
• Read the documentation