# Development Setup

This guide will help you set up a complete development environment for contributing to Changemaker Lite V2.

## Prerequisites

Before beginning, ensure you have the following installed:

### Required Software

- **Node.js 20+** ([download](https://nodejs.org/))
  ```bash
  node --version  # Should be v20.x.x or higher
  ```

- **npm 10+** (comes with Node.js)
  ```bash
  npm --version  # Should be 10.x.x or higher
  ```

- **Docker Desktop** ([download](https://www.docker.com/products/docker-desktop))
  ```bash
  docker --version        # Should be 20.10.x or higher
  docker compose version  # Should be 2.0.x or higher
  ```

- **Git** ([download](https://git-scm.com/downloads))
  ```bash
  git --version  # Should be 2.x.x or higher
  ```

### Recommended Software

- **VSCode** ([download](https://code.visualstudio.com/)) - Recommended code editor
- **GitHub CLI** ([download](https://cli.github.com/)) - Simplifies GitHub operations
- **Postman** or **Thunder Client** - API testing (Thunder Client is VSCode extension)

### System Requirements

- **Operating System**: Linux, macOS, or Windows (with WSL2)
- **RAM**: 8GB minimum (16GB recommended)
- **Disk Space**: 20GB free space
- **Internet**: Required for npm packages and Docker images

## Fork and Clone

### 1. Fork the Repository

1. Visit [https://github.com/changemaker-lite/v2](https://github.com/changemaker-lite/v2)
2. Click **Fork** button (top right)
3. Select your GitHub account as the destination

### 2. Clone Your Fork

```bash
# Clone your fork (replace YOUR-USERNAME)
git clone https://github.com/YOUR-USERNAME/changemaker-lite.git
cd changemaker-lite

# Add upstream remote (original repository)
git remote add upstream https://github.com/changemaker-lite/v2.git

# Verify remotes
git remote -v
# Should show:
# origin    https://github.com/YOUR-USERNAME/changemaker-lite.git (fetch)
# origin    https://github.com/YOUR-USERNAME/changemaker-lite.git (push)
# upstream  https://github.com/changemaker-lite/v2.git (fetch)
# upstream  https://github.com/changemaker-lite/v2.git (push)
```

### 3. Checkout V2 Branch

```bash
# Switch to v2 branch
git checkout v2

# Verify you're on v2
git branch
# Should show: * v2
```

## Environment Setup

### 1. Create Environment File

```bash
# Copy example environment file
cp .env.example .env

# Edit .env with your preferred editor
nano .env  # or: code .env (VSCode)
```

### 2. Configure Environment Variables

**Minimal development configuration**:

```bash
# Database
DATABASE_URL=postgresql://changemaker:devpassword@localhost:5433/changemaker_v2?schema=public
V2_POSTGRES_USER=changemaker
V2_POSTGRES_PASSWORD=devpassword
V2_POSTGRES_DB=changemaker_v2

# Redis
REDIS_URL=redis://:devpassword@localhost:6379
REDIS_PASSWORD=devpassword

# JWT Secrets (generate with: openssl rand -hex 32)
JWT_ACCESS_SECRET=your_access_secret_here_32_chars_min
JWT_REFRESH_SECRET=your_refresh_secret_here_32_chars_min
ENCRYPTION_KEY=your_encryption_key_here_32_chars_min

# API
API_PORT=4000
MEDIA_API_PORT=4100
NODE_ENV=development

# Email (test mode - uses MailHog)
EMAIL_TEST_MODE=true
SMTP_HOST=localhost
SMTP_PORT=1025
SMTP_FROM=dev@localhost

# Feature Flags
ENABLE_MEDIA_FEATURES=true
LISTMONK_SYNC_ENABLED=false
```

**Generate secrets**:
```bash
# Generate JWT secrets (run 3 times for each secret)
openssl rand -hex 32

# On Windows (PowerShell):
[Convert]::ToBase64String((1..32 | ForEach-Object { Get-Random -Minimum 0 -Maximum 256 }))
```

!!! warning "Security"
    Use different secrets for JWT_ACCESS_SECRET, JWT_REFRESH_SECRET, and ENCRYPTION_KEY. Never commit .env to Git!

## Install Dependencies

### API Dependencies

```bash
cd api

# Install npm packages
npm install

# Verify installation
npm list prisma  # Should show @prisma/client and prisma packages
```

### Admin Dependencies

```bash
cd ../admin

# Install npm packages
npm install

# Verify installation
npm list react  # Should show react 19.x.x
```

## Database Setup

### Option 1: Docker (Recommended for Development)

Start PostgreSQL and Redis in Docker:

```bash
cd /home/bunker-admin/changemaker.lite

# Start database services
docker compose up -d v2-postgres redis

# Wait for PostgreSQL to be ready (about 10 seconds)
sleep 10

# Verify services running
docker compose ps
# Should show v2-postgres and redis as "running"
```

Run Prisma migrations:

```bash
cd api

# Run all migrations
npx prisma migrate deploy

# Seed initial data (admin user, settings, blocks)
npx prisma db seed

# Verify database
npx prisma studio
# Opens browser at http://localhost:5555
```

**Default admin credentials** (from seed):
- Email: `admin@example.com`
- Password: `Admin123!`

!!! warning "Change Default Password"
    Change the default admin password immediately after first login in development.

### Option 2: Local PostgreSQL (Advanced)

If you have PostgreSQL 16 installed locally:

```bash
# Create database and user
psql -U postgres
CREATE USER changemaker WITH PASSWORD 'devpassword';
CREATE DATABASE changemaker_v2 OWNER changemaker;
\q

# Update .env DATABASE_URL
DATABASE_URL=postgresql://changemaker:devpassword@localhost:5432/changemaker_v2?schema=public

# Run migrations
cd api
npx prisma migrate deploy
npx prisma db seed
```

## Running Development Servers

### Method 1: Docker Compose (Full Stack)

Run all services in Docker:

```bash
# Start all services
docker compose up -d

# View logs
docker compose logs -f api admin

# Stop services
docker compose down
```

**Access points**:
- Admin: http://localhost:3000
- API: http://localhost:4000
- Media API: http://localhost:4100
- Prisma Studio: `cd api && npx prisma studio`
- MailHog: http://localhost:8025

### Method 2: Local Development (Hot Reload)

Run services locally for faster development:

**Terminal 1 - API**:
```bash
cd api
npm run dev

# Runs on http://localhost:4000
# Hot reload enabled (nodemon)
```

**Terminal 2 - Admin**:
```bash
cd admin
npm run dev

# Runs on http://localhost:3000
# Hot reload enabled (Vite HMR)
```

**Terminal 3 - Media API** (optional):
```bash
cd api
npm run dev:media

# Runs on http://localhost:4100
# Hot reload enabled (nodemon)
```

**Terminal 4 - Database** (Docker):
```bash
# Keep PostgreSQL and Redis running
docker compose up -d v2-postgres redis
```

!!! tip "Recommended Workflow"
    Use Method 2 (local) for frontend/backend development (faster hot reload). Use Method 1 (Docker) for testing full stack integration.

## VSCode Setup

### Recommended Extensions

Install these VSCode extensions for better development experience:

```json
{
  "recommendations": [
    "dbaeumer.vscode-eslint",           // ESLint
    "esbenp.prettier-vscode",           // Prettier
    "prisma.prisma",                    // Prisma syntax
    "bradlc.vscode-tailwindcss",        // Tailwind (if using)
    "ms-azuretools.vscode-docker",      // Docker
    "rangav.vscode-thunder-client",     // API testing
    "editorconfig.editorconfig",        // EditorConfig
    "streetsidesoftware.code-spell-checker" // Spell check
  ]
}
```

### Workspace Settings

Create `.vscode/settings.json`:

```json
{
  "editor.defaultFormatter": "esbenp.prettier-vscode",
  "editor.formatOnSave": true,
  "editor.codeActionsOnSave": {
    "source.fixAll.eslint": true
  },
  "typescript.tsdk": "node_modules/typescript/lib",
  "typescript.enablePromptUseWorkspaceTsdk": true,
  "files.exclude": {
    "**/.git": true,
    "**/.DS_Store": true,
    "**/node_modules": true,
    "**/dist": true
  }
}
```

### Debug Configuration

Create `.vscode/launch.json` for debugging:

```json
{
  "version": "0.2.0",
  "configurations": [
    {
      "name": "API (Node)",
      "type": "node",
      "request": "launch",
      "runtimeExecutable": "npm",
      "runtimeArgs": ["run", "dev"],
      "cwd": "${workspaceFolder}/api",
      "console": "integratedTerminal",
      "internalConsoleOptions": "neverOpen",
      "skipFiles": ["<node_internals>/**"]
    },
    {
      "name": "Admin (Chrome)",
      "type": "chrome",
      "request": "launch",
      "url": "http://localhost:3000",
      "webRoot": "${workspaceFolder}/admin/src",
      "sourceMapPathOverrides": {
        "webpack:///src/*": "${webRoot}/*"
      }
    }
  ]
}
```

## Making Changes

### 1. Create Feature Branch

```bash
# Fetch latest changes
git fetch upstream
git checkout v2
git merge upstream/v2

# Create feature branch
git checkout -b feature/your-feature-name

# Or for bug fix
git checkout -b fix/bug-description
```

### 2. Code Style

Follow project conventions:

**Run linter**:
```bash
cd api && npm run lint        # Backend
cd admin && npm run lint      # Frontend
```

**Auto-fix**:
```bash
cd api && npm run lint:fix    # Backend
cd admin && npm run lint:fix  # Frontend
```

**Format code**:
```bash
cd api && npm run format      # Backend
cd admin && npm run format    # Frontend
```

**Type check**:
```bash
cd api && npx tsc --noEmit    # Backend
cd admin && npx tsc --noEmit  # Frontend
```

### 3. Run Tests

```bash
# API unit tests
cd api && npm test

# API integration tests
cd api && npm run test:integration

# Frontend tests
cd admin && npm test

# End-to-end tests
npm run test:e2e
```

### 4. Test Your Changes

**Manual testing checklist**:

- [ ] API endpoints work (use Postman/Thunder Client)
- [ ] Frontend renders correctly
- [ ] No console errors
- [ ] Works in Chrome, Firefox, Safari
- [ ] Responsive design (mobile, tablet, desktop)
- [ ] Accessibility (keyboard navigation, screen reader)
- [ ] Error handling (try invalid inputs)
- [ ] Loading states (try slow network)

**Integration testing**:
```bash
# Start full stack
docker compose up -d

# Run integration tests
./scripts/test-integration.sh

# Check logs for errors
docker compose logs -f
```

## Staying Synced with Upstream

Regularly sync your fork with the upstream repository:

```bash
# Fetch upstream changes
git fetch upstream

# Merge into your local v2 branch
git checkout v2
git merge upstream/v2

# Push to your fork
git push origin v2

# Rebase your feature branch (optional, cleaner history)
git checkout feature/your-feature-name
git rebase v2
```

!!! tip "Rebase vs Merge"
    Use `git rebase v2` for cleaner commit history. Use `git merge v2` if you're unsure about rebasing.

## Troubleshooting

### Port Conflicts

**Error**: `Port 3000 already in use`

**Solution**:
```bash
# Find process using port
lsof -i :3000  # macOS/Linux
netstat -ano | findstr :3000  # Windows

# Kill process or change port
# Edit .env: ADMIN_PORT=3001
```

### Database Connection Errors

**Error**: `Can't reach database server at localhost:5433`

**Solution**:
```bash
# Check if PostgreSQL is running
docker compose ps v2-postgres

# Restart PostgreSQL
docker compose restart v2-postgres

# Check logs
docker compose logs v2-postgres

# Verify DATABASE_URL in .env
```

### Migration Errors

**Error**: `Migration failed`

**Solution**:
```bash
# Reset database (WARNING: deletes all data)
cd api
npx prisma migrate reset

# Or manually drop and recreate
docker compose exec v2-postgres psql -U changemaker -d postgres -c "DROP DATABASE changemaker_v2;"
docker compose exec v2-postgres psql -U changemaker -d postgres -c "CREATE DATABASE changemaker_v2 OWNER changemaker;"
npx prisma migrate deploy
npx prisma db seed
```

### Dependency Installation Errors

**Error**: `npm install` fails

**Solution**:
```bash
# Clear npm cache
npm cache clean --force

# Remove node_modules and package-lock.json
rm -rf node_modules package-lock.json

# Reinstall
npm install

# If still fails, try older Node version
nvm install 20.11.0
nvm use 20.11.0
npm install
```

### Docker Issues

**Error**: Docker daemon not running

**Solution**:
- **macOS/Windows**: Start Docker Desktop
- **Linux**: `sudo systemctl start docker`

**Error**: Permission denied (Docker)

**Solution** (Linux):
```bash
# Add user to docker group
sudo usermod -aG docker $USER

# Log out and back in, or:
newgrp docker
```

## Next Steps

Now that your environment is set up:

1. **[Find an issue](https://github.com/changemaker-lite/v2/issues?q=is%3Aissue+is%3Aopen+label%3A%22good+first+issue%22)** to work on
2. **[Review code style guidelines](../contributing/index.md#development-guidelines)**
3. **[Create your first PR](pull-requests.md)**
4. **[Join the community](../contributing/index.md#communication-channels)**

## Related Documentation

- [Contributing Guide](index.md) - Contribution overview
- [Pull Request Guidelines](pull-requests.md) - PR process
- [Code of Conduct](code-of-conduct.md) - Community standards
- [Architecture](../architecture/index.md) - System design

## Getting Help

Stuck on setup? Ask for help:

- **GitHub Discussions**: [Ask a question](https://github.com/changemaker-lite/v2/discussions)
- **Discord**: [Join our server](https://discord.gg/changemaker-lite)
- **Email**: dev@cmlite.org

Happy coding! 🚀