# UniBrain Hook 🧠 Automate Onchain Functions

### What

The `UniBrain` hook is designed to automatically trigger onchain actions using an automated Dutch Auction via a Uniswap V4 Pool

### How
Imagine you want to automatically trigger an onchain action. How do you automate that? You pay a third-party to automatically trigger that function call -- *onchain or offchain*.

**The UniBrain hook turns UniswapV4 into a hub for triggering onchain function calls.**


Instead of paying an offchain third-party or bootstrapping a new decentralized network, the UniBrain hook uses a Dutch Action to incentivize an existing network (i.e. block builders and searchers) to automatically trigger any onchain function by executing a profitable trade via the UniswapV4 protocol.

### Why
There are many legitimate reasons for needing to automatically trigger an onchain function call. And it's up to the person/team setting up the UniBrain hook for Uniswap V4.

# How It Works

The UniBrain hook is designed to automate any onchain action at a predetermind time by using an automated Dutch Auction to incentive "rational economic actors" to periodally swap via the pool and **automatically triggering on onchain function call**.

For example let's imagine we have a UniswapV4 DAI/USDC pool with a $1,000 worth of liquidity. And we want an onchain function to be called every 30 minutes.

There is a cost to executing the onchain transaction.

Let's assume it costs $0.03 to execute the onchain transaction.

The UniBrain hook will automatically start a Dutch Auction every 30 minutes. And during this period the cost of purchasing USDC with DAI will decrease by $0.01 every 10 seconds.

At a certain point in time it becomes profitable to execute a swap via the DAI/USDC pool.

- 10 seconds = $-0.02 profit
- 20 seconds = $-0.01 profit
- 30 seconds = $0.00 profit
- 40 seconds = $0.01 profit
- 50 seconds = $0.02 profit

In-turn automatically executing the onchain function call at a competitive price.

**A win/win for everyone.**

Searchers gets a small profit and an onchain service/protocol relying on that automation can sleep easily at night knowing their infrastructure will continue to run smoothly.

# Hook Specification

There are two primary smart contracts:

1. UniBrainHook
2. UniBrainHub

### UniBrainHook
The UniBrain hook automatically starts a Dutch Auction at a designated time interval i.e. every 30 minutes. Changing the price curve between the two assets and incentivizing a swap to occur in the pool.


Every swap will trigger a function call to the UniBrainHub.

### UniBrainHub
The UniBrainHub upon receiving a "ping" from the UniBrain hook will execute a sequential transaction call to an external contract - **the function call can be set to anything**.