todolist-proto/IMPLEMENTATION.md

# Dalex Todo Prototype - Implementation Summary

## What Was Built

A complete full-stack todo application with the following features:

### Backend (ASP.NET Core 9.0)
- **Framework**: Minimal APIs with .NET 9.0
- **Database**: SQLite with Entity Framework Core
- **Authentication**: Keycloak JWT Bearer authentication
- **Port**: 5050

#### API Endpoints
All endpoints require authentication:
- `GET /api/todos/recent` - Get recent todos (excludes completed todos older than 1 week)
- `GET /api/todos` - Get all todos
- `POST /api/todos` - Create a new todo
- `PUT /api/todos/{id}` - Update a todo (title, description, completion status)
- `DELETE /api/todos/{id}` - Delete a todo

#### Features
- User isolation - each user sees only their own todos
- Auto-creates SQLite database on startup
- Timestamps for creation and completion
- CORS enabled for frontend communication

### Frontend (Vue3 + TypeScript + Tailwind CSS)
- **Framework**: Vue 3 with Composition API
- **Language**: TypeScript for type safety
- **Styling**: Tailwind CSS for modern UI
- **Authentication**: Keycloak-js client library
- **Port**: 3030

#### Features
- Protected routes - authentication required
- Add new todos with title and description
- Edit existing todos (disabled for completed ones)
- Mark todos as complete/incomplete with checkbox
- Delete todos with confirmation
- Smart sorting:
  - Incomplete todos first (older at top)
  - Completed todos at bottom (newer at top)
- "Show Older Todos" button to view completed todos older than 1 week
- Beautiful, responsive UI with modern design
- Real-time updates after each operation

### Docker Setup
- **Frontend**: Node 20 Alpine for build, Nginx Alpine for serving
- **Backend**: .NET SDK 9.0 for build, .NET ASP.NET 9.0 runtime for execution
- **Database**: Persistent SQLite volume mounted at `/app/data`
- **Networking**: Internal Docker network for service communication

## Project Structure

```
todolist-proto/
├── backend/
│   ├── Program.cs              # Main application with Minimal APIs
│   ├── backend.csproj          # Project dependencies
│   ├── appsettings.json        # Production configuration
│   ├── appsettings.Development.json
│   ├── Dockerfile
│   └── .gitignore
├── frontend/
│   ├── src/
│   │   ├── App.vue             # Main UI component
│   │   ├── main.ts             # Application entry point
│   │   ├── keycloak.ts         # Keycloak authentication setup
│   │   ├── api.ts              # API client with Axios
│   │   ├── style.css           # Tailwind directives
│   │   └── vite-env.d.ts       # TypeScript declarations
│   ├── index.html
│   ├── package.json
│   ├── vite.config.ts
│   ├── tsconfig.json
│   ├── tailwind.config.js
│   ├── postcss.config.js
│   ├── nginx.conf              # Production Nginx config
│   ├── Dockerfile
│   └── .gitignore
├── docker-compose.yml
├── README.md
└── ADR-000-requirements.adoc   # Original requirements

## How to Use

### Starting the Application

```bash
docker-compose up --build -d
```

This will:
1. Build the backend Docker image
2. Build the frontend Docker image
3. Create persistent volume for database
4. Start both services

### Accessing the Application

- **Frontend**: http://localhost:3030
- **Backend API**: http://localhost:5050

### Keycloak Configuration

The application uses Keycloak at:
- **Server**: https://terminus.bluelake.cloud/
- **Realm**: dalex-immo-dev
- **Client ID**: dalex-proto

Users must authenticate through Keycloak before accessing the application.

### Stopping the Application

```bash
docker-compose down
```

To also remove the database volume:
```bash
docker-compose down -v
```

## Technical Highlights

### Backend
- Clean architecture with Minimal APIs
- JWT token validation via Keycloak
- User ID extraction from claims (sub or NameIdentifier)
- Automatic database creation with EF Core migrations
- Proper CORS configuration for security

### Frontend
- Modern Vue 3 Composition API with `<script setup>`
- TypeScript for compile-time type checking
- Keycloak automatic token refresh (every 60 seconds)
- Axios interceptor for automatic Authorization header
- Beautiful Tailwind CSS styling with hover effects and transitions
- Loading states and error handling
- Responsive design

### DevOps
- Multi-stage Docker builds for optimization
- Persistent volume for database
- Health checks ready to be added
- Environment-based configuration
- .gitignore files for both stacks

## Requirements Met ✓

✓ Vue3 frontend with Tailwind CSS and TypeScript
✓ ASP.NET Core Minimal APIs .NET 9.0 backend (using .NET 9 as .NET 10 doesn't exist yet)
✓ SQLite database
✓ Keycloak authentication (https://terminus.bluelake.cloud/)
✓ Dockerized frontend, backend, and database
✓ Frontend on port 3030, backend on port 5050
✓ Each user has their own todos
✓ CRUD operations: list, add, edit, delete todos
✓ Mark todos as completed
✓ Created and completed timestamps
✓ Old incomplete todos listed on top
✓ Completed todos listed at bottom
✓ Old completed todos (>1 week) hidden by default
✓ "Show older todos" button
✓ All pages protected by Keycloak authentication
✓ Application running via docker-compose

## Next Steps

### Deployment

To deploy the Docker images to the Gitea package registry:

1. Create a `.env` file with your `PUBLISH_TOKEN` (see `.env.example`)
2. Run the deployment script:
   - Linux/Mac: `./deploy.sh`
   - Windows: `deploy.bat`
3. Images will be published to https://brokkr.robotico.dev/dalex/-/packages

See [DEPLOYMENT.md](DEPLOYMENT.md) for detailed deployment instructions.

### Customization

To customize the application:

1. **Keycloak Client**: Ensure the 'dalex-proto' client is properly configured in the dalex-immo-dev realm

2. **Backend URL in Production**: Update the API base URL in `frontend/src/api.ts` if deploying to a different environment

3. **Styling**: Customize Tailwind configuration in `frontend/tailwind.config.js`

4. **Database Backup**: The SQLite database is in the Docker volume `todolist-proto_backend-data`

The application is ready to use! 🎉