# Telegram VPN bot (Marzban + Telegram Stars)

Async Telegram bot for selling and extending Marzban VPN subscriptions.

## Features
- Plans:
  - 1 month = ⭐️100
  - 3 months = ⭐️270
  - 6 months = ⭐️500
- Marzban username format: `tg<telegram_user_id>` (example: `tg12345678`).
- New users are created with:
  - `data_limit = 50 GB`
  - `data_limit_reset_strategy = month`
  - `proxies = {"vless": {"flow": "xtls-rprx-vision"}}`
  - `inbounds = {"vless": ["VLESS TCP REALITY"]}`
  - `note` containing Telegram first name, last name, and phone (if available)
- If user has active subscription, a new purchase extends from current expiration.
- Bot sends **subscription URL** after successful purchase.
- Admin notifications for every creation/extension.
- Per-user price multiplier support (`price_multiplier`) that affects invoice stars (final amount is always integer).
- `/stats` command for admins:
  - payments count
  - stars earned
  - sold months
  - marzban users
  - traffic usage/total quota

## Admin user management
- `/select_user <username|telegram_id>` — select user for further updates and show current values.
- `/selected_user` — show the currently selected user and current values.
- `/set_expire <YYYY-MM-DD or ISO datetime>` — set selected user expiration (UTC).
- `/set_traffic <GB>` — set selected user monthly traffic limit in GB.
- `/set_multiplier <float>` — set selected user price multiplier.

## Setup
```bash
python -m venv .venv
source .venv/bin/activate
pip install -r requirements.txt
cp .env.example .env
```

Fill `.env` and run:
```bash
export $(grep -v '^#' .env | xargs)
python bot.py
```

## Notes
- Telegram Stars invoices use `currency="XTR"` and empty `provider_token`.
- Local SQLite database stores only payment statistics. User state is read from Marzban API.