Mini DeFi Project

This document presents a mini DeFi project centered around a primary smart contract, Treasury.sol.

The contracts are being deployed to Arbitrum. The testing of the contracts has been done forking the Arbitrum chain. The integrated pools and protocol for executing the swaps is Sushiswap.

You should include an .env file with PRIVATE_KEY refering to your account private key.

The deployed Treasury address is: 0x79efC7932cc9EdB8D0d3D7D5fab95e0B77f09859 The integrated pools are:

1. USDT/USDC.e: 0x8165c70b01b7807351EF0c5ffD3EF010cAbC16fB.
2. USDT/MIM: 0xB7a2F46B196DeCB610a3046053f757264AcF0537.

The protocol comprises three primary functionalities:

1. Users have the ability to directly exchange tokens from their wallets and subsequently receive the exchanged tokens back into their wallets by invoking the swapTokens function.
2. Users can deposit any type of ERC20 token into the treasury by calling the deposit function, their balance is saved in a mapping called userBalance. Each user can also swap their internal contract balance by calling swapInternalBalance.
3. The most important functionality: The Treasury contract can receive StableCoin funds, which has been deployed as USDT in Arbitrum. Users can deposit stableCoin by calling depositStableCoinForDistributeInPools. This funds are being accumulated in the contract and counted in the stableCoinBalanceForPools variable. Then this funds can be used for adding liquidity to the USDT/MIM and USDT/USDCe pairs in SushiSwap.

TO DO: The addLiquidity and removeLiquidity functions should implement and access modifier if it is wanted to. It would be also a good idea to implement some logic for swapping assets back to StableCoin after removing liquidity.

Here are some diagrams for each funcitonality:

1. First functionality:

2. Second functionality:

3. Third functionality:

• Add liquidity:

• Add liquidity After the above step: