Deposits

/**
        @notice Sovereign ALM function to deposit reserves into `pool`.
        @param _amount0 Amount of token0 to deposit.
        @param _amount1 Amount of token1 to deposit.
        @param _expectedSqrtSpotPriceLowerX96 Minimum expected sqrt spot price, to mitigate against its manipulation.
        @param _expectedSqrtSpotPriceUpperX96 Maximum expected sqrt spot price, to mitigate against its manipulation.
        @return amount0Deposited Amount of token0 deposited (it can differ from `_amount0` in case of rebase tokens).
        @return amount1Deposited Amount of token1 deposited (it can differ from `_amount1` in case of rebase tokens).
        @dev Only callable by `liquidityProvider`.
        @dev It assumes that `liquidityProvider` implements sufficient internal protection against
             sandwich attacks or other types of spot price manipulation attacks. 
     */
    function depositLiquidity(
        uint256 _amount0,
        uint256 _amount1,
        uint160 _expectedSqrtSpotPriceLowerX96,
        uint160 _expectedSqrtSpotPriceUpperX96
    ) external onlyLiquidityProvider onlyUnpaused returns (uint256 amount0Deposited, uint256 amount1Deposited);

• Only liquidityProvider can deposit into HOT, which then calls the depositLiquidity function in pool

• No deposits can happen if HOT contract is paused.

• The depositLiquidity function offers some degree of protection against spot price manipulation attacks:

  • liquidityProvider can pass the expected lower and upper bounds of sqrt spot price. If sqrt spot price is beyond these, the transaction reverts.

  • HOT contract also checks that sqrt spot price is within allowed bounds relatively to sqrt oracle price. If sqrt spot price is beyond these, the transaction reverts.

• WARNING: It assumes that liquidityProvider is a contract that takes sufficient precautions to correctly tokenise liquidity shares (if applicable), prevent sandwich attacks and/or protections against AMM spot price manipulation, or other applicable protections such as timelocks.