> For the complete documentation index, see [llms.txt](https://docs.hipersnipe.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.hipersnipe.com/architecture/bot-and-engines.md).

# Bot and background engines

## main.py — Telegram bot

Entry point for the aiogram dispatcher. Responsibilities:

* Register all handler routers from `handlers/`
* `/start`, `/wallet`, `/assets`, `/limits`, `/help` commands
* Main menu and inline keyboard callbacks
* Start background asyncio tasks on startup
* Graceful shutdown via `utils/system_manager.py`

### Handler routers (included from main)

| Router module                     | Domain                             |
| --------------------------------- | ---------------------------------- |
| `handlers/user_setup.py`          | Registration, wallet, assets, help |
| `handlers/trading.py`             | Aggregates trading sub-routers     |
| `handlers/trading_ca_handler.py`  | Universal CA detection             |
| `handlers/trading_token_ui.py`    | Token dashboard UI                 |
| `handlers/trading_buy_sell.py`    | Buy/sell execution                 |
| `handlers/trading_limits.py`      | Limit orders dashboard             |
| `handlers/trading_auto_sell.py`   | Trading Shield config UI           |
| `handlers/settings.py`            | Pro Settings                       |
| `handlers/admin.py`               | Admin panel                        |
| `handlers/analytics_ui.py`        | PnL analytics                      |
| `handlers/dca_ui.py`              | DCA management                     |
| `handlers/copytrade_ui.py`        | Copy trading UI                    |
| `handlers/snipe_ui.py`            | Raydium LP snipe                   |
| `handlers/channel_interceptor.py` | Partner channel deep links         |

## limit\_engine.py — Automation engine

Long-running process that:

* Subscribes to AMM pool accounts via Helius WSS
* Evaluates pending limit orders against live prices
* Executes Trading Shield TP/SL rules
* Manages presigned sell cache for low-latency exits
* Rebuilds shield registry on config changes

Key log prefixes: `[ORACLE]`, `[REBUILD]`, `[METRICS]`, `[PERF-STATS]`.

## dca\_engine.py

Executes due DCA orders from the database on a schedule.

## Listeners and watchers

| Module                   | Trigger                     | Action                                              |
| ------------------------ | --------------------------- | --------------------------------------------------- |
| `deposit_listener.py`    | Incoming SOL to user wallet | Notify user                                         |
| `copytrade_listener.py`  | Target wallet buy detected  | Mirror buy                                          |
| `pump_watcher.py`        | Pump.fun events             | Migration Sell, Dev Sell, Snipe Migration, Auto Buy |
| `snipe_watcher.py`       | Raydium LP creation         | Auto-buy snipe targets                              |
| `project_buy_watcher.py` | Project tracking buys       | Group buy alerts                                    |
| `tg_scraper.py`          | Telethon group messages     | TG CA Sniper auto-buy                               |

## TG scraper

`tg_scraper.py` runs as a Telethon client when `TG_SESSION_STRING` is configured. Monitors admin-configured groups for contract addresses and triggers snipe buys.

## Auxiliary tasks (utils/)

| Module                | Schedule                     | Purpose                                  |
| --------------------- | ---------------------------- | ---------------------------------------- |
| `daily_tasks.py`      | Daily 12:00 Europe/Ljubljana | Community War Room leaderboard broadcast |
| `gamification.py`     | On demand                    | In-bot tournament leaderboard            |
| `leaderboard_sync.py` | Background                   | Sync leaderboard data                    |
| `broadcaster.py`      | Event-driven                 | PnL win cards to community               |

## Process launcher

`start_bot.py` manages subprocess lifecycle:

* Writes `bot.pid` for `restart_bot.py`
* Prefixes logs: `[BOT UI]` and `[LIMIT ENGINE]`
* Forwards SIGINT/SIGTERM to children


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