docs: update README to reflect project name change and enhance setup instructions

readme.md

@@ -1,33 +1,61 @@
+**Project**
+- **Name:**: Simple WebUntis → PocketBase sync
+- **Description:**: A small Node.js script that fetches your WebUntis timetable and synchronizes classes into a PocketBase collection.
 
-# Moodle Timetable Server
+**Files**
+- **Main script:**: [index.js](index.js)
+- **Package metadata:**: [package.json](package.json)
+- **Dockerfile:**: [dockerfile](dockerfile)
 
-A Node.js server that fetches timetable data from WebUntis.
+**Requirements**
+- **Node.js:**: v14+ recommended
+- **Environment:**: A PocketBase instance reachable from the script (the URL is currently set inside `index.js`).
 
-## Setup
+**Dependencies**
+- **webuntis**: fetches timetable data
+- **pocketbase**: PocketBase client
+- **luxon**: date handling
+- **dotenv**: load environment variables
+
+**Configuration**
+- **Environment variables:**: Create a `.env` in the project root with at least:
 
-1. Install dependencies:
-```bash
-npm install express dotenv luxon webuntis
 ```
-
-2. Create a `.env` file with:
-```env
-PORT=3000
 WEBUNTIS_SCHOOL=your_school
 WEBUNTIS_USER=your_username
 WEBUNTIS_PASS=your_password
 WEBUNTIS_URL=your_webuntis_url
 ```
 
-## API Endpoints
+- **PocketBase URL:**: The script currently instantiates PocketBase with a hard-coded URL (`https://fsae41.de`). Edit `index.js` to change this or make it configurable via an env var.
 
-- `GET /` - Health check
+**Install**
-- `GET /timetable` - Fetch timetable for next 4 weeks
-
-## Running
 
 ```bash
-node server.js
+npm install
 ```
 
-Server runs on `http://localhost:3000` by default.
+**Run**
+
+```bash
+node index.js
+```
+
+The script runs an initial sync and then repeats every 30 minutes (see `setInterval` near the end of `index.js`).
+
+**Behavior**
+- **Merging lessons:**: The script sorts and merges adjacent lessons that end and start at the same time on the same day.
+- **PocketBase collection:**: Records are created/updated in the `classes` collection. Existing records are compared and updated if changes are detected.
+
+**Docker**
+- A `dockerfile` is present; you can containerize the app. Ensure environment variables and PocketBase URL are provided to the container.
+
+**Notes & Next steps**
+- Consider moving the PocketBase URL into `.env` for easier configuration.
+- Add error handling and logging for production use.
+
+**License**
+- No license specified. Add one if you plan to publish.
+
+**Contact**
+- Questions or improvements: edit `index.js` and open an issue or PR in your repo.