# Learning Progress Tracker

A web-based goal and learning progress tracker with subtask management, due dates, drag-and-drop reordering, task archiving, and persistent server-side storage.

## Features

- **Goal Management** — Create, edit, and delete learning goals with titles, descriptions, sizes, due dates, and optional rewards.
- **Due Dates** — Set deadlines on tasks and subtasks. Color-coded badges show time remaining: green (plenty of time), amber (7 days or less), red (overdue/today). Completed tasks show a strikethrough date.
- **Subtasks** — Break goals into smaller subtasks. Drag any task onto another to nest it, or promote subtasks back to top-level goals via right-click.
- **Progress Tracking** — Automatic weighted progress calculation (Small 10%, Medium 25%, Large 50%).
- **Archive** — Completed tasks show an "Archive" button. Switch to the Archive view to restore, edit, or permanently delete archived tasks.
- **Drag & Drop** — Reorder tasks and subtasks. Hold over a task to reveal its drop zone for nesting.
- **Context Menus** — Right-click for edit, delete, promote, archive, or restore actions.
- **Double-Click to Edit** — Double-click any task or subtask card to open the editor.
- **Expandable Descriptions** — Toggle "Show full description" per task to expand beyond the default 2-line clamp.
- **Rewards** — Hidden rewards revealed only upon completion.
- **Custom Background** — Place a `background.jpg` or `background.png` in `public/img/` to set a custom background image. The UI uses frosted glass (glassmorphism) over the image.
- **Persistent Storage** — SQLite database with automatic schema migration.

## Project Structure

```
├── public/
│   ├── img/              # Place background.jpg or background.png here
│   ├── index.html
│   ├── styles.css
│   └── app.js
├── server/
│   └── server.js
├── data/                 # SQLite database (auto-created)
├── package.json
├── dockerfile
└── README.md
```

## Getting Started

### Prerequisites

- [Node.js](https://nodejs.org/) v18 or later

### Installation

```bash
cd learning-progress-tracker
npm install
npm start
```

Available at **http://localhost:3000**.

For development with auto-reload:

```bash
npm run dev
```

### Custom Background

Place your image at `public/img/background.jpg` (or `.png`). The CSS references `img/background.jpg` — rename or edit the CSS path as needed. Without an image, the app falls back to a soft gradient.

### Docker

```bash
docker build -t learning-tracker .
docker run -d -p 3000:3000 -v tracker-data:/app/data learning-tracker
```

## API Endpoints

| Method | Endpoint | Description |
|--------|----------|-------------|
| `GET` | `/api/tasks` | Fetch active tasks (`?archived=1` for archived) |
| `POST` | `/api/tasks` | Create a new task |
| `PUT` | `/api/tasks/:id` | Update a task |
| `PUT` | `/api/tasks/:id/archive` | Archive a task |
| `PUT` | `/api/tasks/:id/unarchive` | Restore an archived task |
| `DELETE` | `/api/tasks/:id` | Permanently delete a task |
| `POST` | `/api/tasks/reorder` | Reorder tasks (array of IDs) |

## Usage

- **+ New Goal** to create a task with optional due date.
- **Right-click** for context menu actions.
- **Double-click** a card to edit it.
- **Drag** to reorder or nest tasks.
- **Archive** completed tasks, then switch views with the Active/Archive toggle.

## Tech Stack

- **Frontend:** Vanilla JavaScript, HTML, CSS (glassmorphism, CSS variables)
- **Backend:** Node.js, Express
- **Database:** SQLite3
- **Containerization:** Docker

## License

MIT