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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import { IFarmConnector, Farm } from "contracts/interfaces/IFarmConnector.sol";
import { IGauge } from "contracts/interfaces/external/aerodrome/IGauge.sol";
import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { SafeTransferLib } from "solmate/utils/SafeTransferLib.sol";

contract VelodromeGaugeConnector is IFarmConnector {
    function deposit(
        Farm calldata farm,
        address token,
        bytes memory // extraData
    ) external payable override {
        uint256 amount = IERC20(token).balanceOf(address(this));
        SafeTransferLib.safeApprove(token, farm.stakingContract, amount);
        IGauge(farm.stakingContract).deposit(amount);
    }

    function withdraw(
        Farm calldata farm,
        uint256 amount,
        bytes memory // extraData
    ) external override {
        IGauge(farm.stakingContract).withdraw(amount);
    }

    function claim(
        Farm memory farm,
        bytes memory // extraData
    ) external override {
        IGauge(farm.stakingContract).getReward(address(this));
    }

    function balanceOf(
        Farm calldata farm,
        address user
    ) external view override returns (uint256) {
        return IGauge(farm.stakingContract).balanceOf(user);
    }

    function earned(
        Farm calldata farm,
        address user,
        address[] calldata // rewardTokens
    ) external view override returns (uint256[] memory) {
        uint256[] memory rewards = new uint256[](1);
        rewards[0] = IGauge(farm.stakingContract).earned(user);
        return rewards;
    }

    function isStaked(
        Farm calldata,
        address // user
    ) external pure override returns (bool) {
        return true;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import { Farm } from "contracts/structs/FarmStrategyStructs.sol";

interface IFarmConnector {
    function deposit(
        Farm calldata farm,
        address token,
        bytes memory extraData
    ) external payable;

    function withdraw(
        Farm calldata farm,
        uint256 amount,
        bytes memory extraData
    ) external;

    function claim(Farm calldata farm, bytes memory extraData) external;

    function balanceOf(
        Farm calldata farm,
        address user
    ) external view returns (uint256);

    function earned(
        Farm calldata farm,
        address user,
        address[] calldata rewardTokens
    ) external view returns (uint256[] memory);

    function isStaked(
        Farm calldata farm,
        address user
    ) external view returns (bool);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IGauge {
    error NotAlive();
    error NotAuthorized();
    error NotVoter();
    error NotTeam();
    error RewardRateTooHigh();
    error ZeroAmount();
    error ZeroRewardRate();

    event Deposit(address indexed from, address indexed to, uint256 amount);
    event Withdraw(address indexed from, uint256 amount);
    event NotifyReward(address indexed from, uint256 amount);
    event ClaimFees(address indexed from, uint256 claimed0, uint256 claimed1);
    event ClaimRewards(address indexed from, uint256 amount);

    /// @notice Address of the pool LP token which is deposited (staked) for rewards
    function stakingToken() external view returns (address);

    /// @notice Address of the token (AERO) rewarded to stakers
    function rewardToken() external view returns (address);

    /// @notice Address of the FeesVotingReward contract linked to the gauge
    function feesVotingReward() external view returns (address);

    /// @notice Address of Protocol Voter
    function voter() external view returns (address);

    /// @notice Address of Protocol Voting Escrow
    function ve() external view returns (address);

    /// @notice Returns if gauge is linked to a legitimate Protocol pool
    function isPool() external view returns (bool);

    /// @notice Timestamp end of current rewards period
    function periodFinish() external view returns (uint256);

    /// @notice Current reward rate of rewardToken to distribute per second
    function rewardRate() external view returns (uint256);

    /// @notice Most recent timestamp contract has updated state
    function lastUpdateTime() external view returns (uint256);

    /// @notice Most recent stored value of rewardPerToken
    function rewardPerTokenStored() external view returns (uint256);

    /// @notice Amount of stakingToken deposited for rewards
    function totalSupply() external view returns (uint256);

    /// @notice Get the amount of stakingToken deposited by an account
    function balanceOf(address) external view returns (uint256);

    /// @notice Cached rewardPerTokenStored for an account based on their most recent action
    function userRewardPerTokenPaid(address) external view returns (uint256);

    /// @notice Cached amount of rewardToken earned for an account
    function rewards(address) external view returns (uint256);

    /// @notice View to see the rewardRate given the timestamp of the start of the epoch
    function rewardRateByEpoch(uint256) external view returns (uint256);

    /// @notice Cached amount of fees generated from the Pool linked to the Gauge of token0
    function fees0() external view returns (uint256);

    /// @notice Cached amount of fees generated from the Pool linked to the Gauge of token1
    function fees1() external view returns (uint256);

    /// @notice Get the current reward rate per unit of stakingToken deposited
    function rewardPerToken() external view returns (uint256 _rewardPerToken);

    /// @notice Returns the last time the reward was modified or periodFinish if the reward has ended
    function lastTimeRewardApplicable() external view returns (uint256 _time);

    /// @notice Returns accrued balance to date from last claim / first deposit.
    function earned(address _account) external view returns (uint256 _earned);

    /// @notice Total amount of rewardToken to distribute for the current rewards period
    function left() external view returns (uint256 _left);

    /// @notice Retrieve rewards for an address.
    /// @dev Throws if not called by same address or voter.
    /// @param _account .
    function getReward(address _account) external;

    /// @notice Deposit LP tokens into gauge for msg.sender
    /// @param _amount .
    function deposit(uint256 _amount) external;

    /// @notice Deposit LP tokens into gauge for any user
    /// @param _amount .
    /// @param _recipient Recipient to give balance to
    function deposit(uint256 _amount, address _recipient) external;

    /// @notice Withdraw LP tokens for user
    /// @param _amount .
    function withdraw(uint256 _amount) external;

    /// @dev Notifies gauge of gauge rewards. Assumes gauge reward tokens is 18 decimals.
    ///      If not 18 decimals, rewardRate may have rounding issues.
    function notifyRewardAmount(uint256 amount) external;

    /// @dev Notifies gauge of gauge rewards without distributing its fees.
    ///      Assumes gauge reward tokens is 18 decimals.
    ///      If not 18 decimals, rewardRate may have rounding issues.
    function notifyRewardWithoutClaim(uint256 amount) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) external returns (bool);
}

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.0;

import {ERC20} from "../tokens/ERC20.sol";

/// @notice Safe ETH and ERC20 transfer library that gracefully handles missing return values.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/SafeTransferLib.sol)
/// @dev Use with caution! Some functions in this library knowingly create dirty bits at the destination of the free memory pointer.
/// @dev Note that none of the functions in this library check that a token has code at all! That responsibility is delegated to the caller.
library SafeTransferLib {
    /*//////////////////////////////////////////////////////////////
                                ERRORS
    //////////////////////////////////////////////////////////////*/

    error ETHTransferFailed();
    error TransferFromFailed();
    error TransferFailed();
    error ApproveFailed();

    /*//////////////////////////////////////////////////////////////
                             ETH OPERATIONS
    //////////////////////////////////////////////////////////////*/

    function safeTransferETH(address to, uint256 amount) internal {
        bool success;

        /// @solidity memory-safe-assembly
        assembly {
            // Transfer the ETH and store if it succeeded or not.
            success := call(gas(), to, amount, 0, 0, 0, 0)
        }

        if (!success) revert ETHTransferFailed();
    }

    /*//////////////////////////////////////////////////////////////
                            ERC20 OPERATIONS
    //////////////////////////////////////////////////////////////*/

    function safeTransferFrom(
        address token,
        address from,
        address to,
        uint256 amount
    ) internal {
        bool success;

        /// @solidity memory-safe-assembly
        assembly {
            // Get a pointer to some free memory.
            let freeMemoryPointer := mload(0x40)

            // Write the abi-encoded calldata into memory, beginning with the function selector.
            mstore(freeMemoryPointer, 0x23b872dd00000000000000000000000000000000000000000000000000000000)
            mstore(add(freeMemoryPointer, 4), from) // Append the "from" argument.
            mstore(add(freeMemoryPointer, 36), to) // Append the "to" argument.
            mstore(add(freeMemoryPointer, 68), amount) // Append the "amount" argument.

            success := and(
                // Set success to whether the call reverted, if not we check it either
                // returned exactly 1 (can't just be non-zero data), or had no return data.
                or(and(eq(mload(0), 1), gt(returndatasize(), 31)), iszero(returndatasize())),
                // We use 100 because the length of our calldata totals up like so: 4 + 32 * 3.
                // We use 0 and 32 to copy up to 32 bytes of return data into the scratch space.
                // Counterintuitively, this call must be positioned second to the or() call in the
                // surrounding and() call or else returndatasize() will be zero during the computation.
                call(gas(), token, 0, freeMemoryPointer, 100, 0, 32)
            )
        }

        if (!success) revert TransferFromFailed();
    }

    function safeTransfer(
        address token,
        address to,
        uint256 amount
    ) internal {
        bool success;

        /// @solidity memory-safe-assembly
        assembly {
            // Get a pointer to some free memory.
            let freeMemoryPointer := mload(0x40)

            // Write the abi-encoded calldata into memory, beginning with the function selector.
            mstore(freeMemoryPointer, 0xa9059cbb00000000000000000000000000000000000000000000000000000000)
            mstore(add(freeMemoryPointer, 4), to) // Append the "to" argument.
            mstore(add(freeMemoryPointer, 36), amount) // Append the "amount" argument.

            success := and(
                // Set success to whether the call reverted, if not we check it either
                // returned exactly 1 (can't just be non-zero data), or had no return data.
                or(and(eq(mload(0), 1), gt(returndatasize(), 31)), iszero(returndatasize())),
                // We use 68 because the length of our calldata totals up like so: 4 + 32 * 2.
                // We use 0 and 32 to copy up to 32 bytes of return data into the scratch space.
                // Counterintuitively, this call must be positioned second to the or() call in the
                // surrounding and() call or else returndatasize() will be zero during the computation.
                call(gas(), token, 0, freeMemoryPointer, 68, 0, 32)
            )
        }

        if (!success) revert TransferFailed();
    }

    function safeApprove(
        address token,
        address to,
        uint256 amount
    ) internal {
        bool success;

        /// @solidity memory-safe-assembly
        assembly {
            // Get a pointer to some free memory.
            let freeMemoryPointer := mload(0x40)

            // Write the abi-encoded calldata into memory, beginning with the function selector.
            mstore(freeMemoryPointer, 0x095ea7b300000000000000000000000000000000000000000000000000000000)
            mstore(add(freeMemoryPointer, 4), to) // Append the "to" argument.
            mstore(add(freeMemoryPointer, 36), amount) // Append the "amount" argument.

            success := and(
                // Set success to whether the call reverted, if not we check it either
                // returned exactly 1 (can't just be non-zero data), or had no return data.
                or(and(eq(mload(0), 1), gt(returndatasize(), 31)), iszero(returndatasize())),
                // We use 68 because the length of our calldata totals up like so: 4 + 32 * 2.
                // We use 0 and 32 to copy up to 32 bytes of return data into the scratch space.
                // Counterintuitively, this call must be positioned second to the or() call in the
                // surrounding and() call or else returndatasize() will be zero during the computation.
                call(gas(), token, 0, freeMemoryPointer, 68, 0, 32)
            )
        }

        if (!success) revert ApproveFailed();
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

import { ZapIn, ZapOut } from "contracts/libraries/ZapLib.sol";
import { SwapParams } from "contracts/structs/LiquidityStructs.sol";

struct Farm {
    address stakingContract;
    uint256 poolIndex;
}

struct DepositParams {
    Farm farm;
    address[] tokensIn;
    uint256[] amountsIn;
    ZapIn zap;
    bytes extraData;
}

struct WithdrawParams {
    bytes extraData;
    ZapOut zap;
    address[] tokensOut;
}

struct HarvestParams {
    SwapParams[] swaps;
    bytes extraData;
    address[] tokensOut;
}

struct CompoundParams {
    Farm claimFarm;
    bytes claimExtraData;
    address[] rewardTokens;
    ZapIn zap;
    Farm depositFarm;
    bytes depositExtraData;
}

struct SimpleDepositParams {
    Farm farm;
    address lpToken;
    uint256 amountIn;
    bytes extraData;
}

struct SimpleHarvestParams {
    address[] rewardTokens;
    bytes extraData;
}

struct SimpleWithdrawParams {
    address lpToken;
    uint256 amountOut;
    bytes extraData;
}

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.0;

/// @notice Modern and gas efficient ERC20 + EIP-2612 implementation.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/tokens/ERC20.sol)
/// @author Modified from Uniswap (https://github.com/Uniswap/uniswap-v2-core/blob/master/contracts/UniswapV2ERC20.sol)
/// @dev Do not manually set balances without updating totalSupply, as the sum of all user balances must not exceed it.
abstract contract ERC20 {
    /*//////////////////////////////////////////////////////////////
                                 EVENTS
    //////////////////////////////////////////////////////////////*/

    event Transfer(address indexed from, address indexed to, uint256 amount);

    event Approval(address indexed owner, address indexed spender, uint256 amount);

    /*//////////////////////////////////////////////////////////////
                            METADATA STORAGE
    //////////////////////////////////////////////////////////////*/

    string public name;

    string public symbol;

    uint8 public immutable decimals;

    /*//////////////////////////////////////////////////////////////
                              ERC20 STORAGE
    //////////////////////////////////////////////////////////////*/

    uint256 public totalSupply;

    mapping(address => uint256) public balanceOf;

    mapping(address => mapping(address => uint256)) public allowance;

    /*//////////////////////////////////////////////////////////////
                            EIP-2612 STORAGE
    //////////////////////////////////////////////////////////////*/

    uint256 internal immutable INITIAL_CHAIN_ID;

    bytes32 internal immutable INITIAL_DOMAIN_SEPARATOR;

    mapping(address => uint256) public nonces;

    /*//////////////////////////////////////////////////////////////
                               CONSTRUCTOR
    //////////////////////////////////////////////////////////////*/

    constructor(
        string memory _name,
        string memory _symbol,
        uint8 _decimals
    ) {
        name = _name;
        symbol = _symbol;
        decimals = _decimals;

        INITIAL_CHAIN_ID = block.chainid;
        INITIAL_DOMAIN_SEPARATOR = computeDomainSeparator();
    }

    /*//////////////////////////////////////////////////////////////
                               ERC20 LOGIC
    //////////////////////////////////////////////////////////////*/

    function approve(address spender, uint256 amount) public virtual returns (bool) {
        allowance[msg.sender][spender] = amount;

        emit Approval(msg.sender, spender, amount);

        return true;
    }

    function transfer(address to, uint256 amount) public virtual returns (bool) {
        balanceOf[msg.sender] -= amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(msg.sender, to, amount);

        return true;
    }

    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) public virtual returns (bool) {
        uint256 allowed = allowance[from][msg.sender]; // Saves gas for limited approvals.

        if (allowed != type(uint256).max) allowance[from][msg.sender] = allowed - amount;

        balanceOf[from] -= amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(from, to, amount);

        return true;
    }

    /*//////////////////////////////////////////////////////////////
                             EIP-2612 LOGIC
    //////////////////////////////////////////////////////////////*/

    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) public virtual {
        require(deadline >= block.timestamp, "PERMIT_DEADLINE_EXPIRED");

        // Unchecked because the only math done is incrementing
        // the owner's nonce which cannot realistically overflow.
        unchecked {
            address recoveredAddress = ecrecover(
                keccak256(
                    abi.encodePacked(
                        "\x19\x01",
                        DOMAIN_SEPARATOR(),
                        keccak256(
                            abi.encode(
                                keccak256(
                                    "Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"
                                ),
                                owner,
                                spender,
                                value,
                                nonces[owner]++,
                                deadline
                            )
                        )
                    )
                ),
                v,
                r,
                s
            );

            require(recoveredAddress != address(0) && recoveredAddress == owner, "INVALID_SIGNER");

            allowance[recoveredAddress][spender] = value;
        }

        emit Approval(owner, spender, value);
    }

    function DOMAIN_SEPARATOR() public view virtual returns (bytes32) {
        return block.chainid == INITIAL_CHAIN_ID ? INITIAL_DOMAIN_SEPARATOR : computeDomainSeparator();
    }

    function computeDomainSeparator() internal view virtual returns (bytes32) {
        return
            keccak256(
                abi.encode(
                    keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"),
                    keccak256(bytes(name)),
                    keccak256("1"),
                    block.chainid,
                    address(this)
                )
            );
    }

    /*//////////////////////////////////////////////////////////////
                        INTERNAL MINT/BURN LOGIC
    //////////////////////////////////////////////////////////////*/

    function _mint(address to, uint256 amount) internal virtual {
        totalSupply += amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(address(0), to, amount);
    }

    function _burn(address from, uint256 amount) internal virtual {
        balanceOf[from] -= amount;

        // Cannot underflow because a user's balance
        // will never be larger than the total supply.
        unchecked {
            totalSupply -= amount;
        }

        emit Transfer(from, address(0), amount);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { SafeTransferLib } from "solmate/utils/SafeTransferLib.sol";
import {
    SwapParams,
    AddLiquidityParams
} from "contracts/structs/LiquidityStructs.sol";
import { ILiquidityConnector } from
    "contracts/interfaces/ILiquidityConnector.sol";
import { ConnectorRegistry } from "contracts/ConnectorRegistry.sol";
import { DelegateModule } from "contracts/modules/DelegateModule.sol";
import { ZapIn, ZapOut } from "contracts/structs/ZapStructs.sol";
import { IZapLib } from "contracts/interfaces/libraries/IZapLib.sol";
import { ISwapLib } from "contracts/interfaces/libraries/ISwapLib.sol";

contract ZapLib is DelegateModule, IZapLib {
    error LiquidityAmountError(); // 0x4d0ab6b4

    ISwapLib public immutable swapLib;
    ConnectorRegistry public immutable connectorRegistry;

    constructor(ConnectorRegistry connectorRegistry_, ISwapLib swapLib_) {
        connectorRegistry = connectorRegistry_;
        swapLib = swapLib_;
    }

    function zapIn(
        ZapIn memory zap
    ) external payable {
        uint256 swapDataLength = zap.swaps.length;
        for (uint256 i; i < swapDataLength;) {
            _delegateTo(
                address(swapLib), abi.encodeCall(ISwapLib.swap, (zap.swaps[i]))
            );
            unchecked {
                i++;
            }
        }

        if (zap.addLiquidityParams.lpToken == address(0)) {
            return;
        }

        bool atLeastOneNonZero = false;

        AddLiquidityParams memory addLiquidityParams = zap.addLiquidityParams;
        uint256 addLiquidityParamsTokensLength =
            addLiquidityParams.tokens.length;
        for (uint256 i; i < addLiquidityParamsTokensLength; i++) {
            if (addLiquidityParams.tokens[i] == address(0)) {
                continue;
            }
            if (addLiquidityParams.desiredAmounts[i] == 0) {
                addLiquidityParams.desiredAmounts[i] = IERC20(
                    addLiquidityParams.tokens[i]
                ).balanceOf(address(this));
            }
            if (addLiquidityParams.desiredAmounts[i] > 0) {
                atLeastOneNonZero = true;
                // In case there is USDT or similar dust approval, revoke it
                SafeTransferLib.safeApprove(
                    addLiquidityParams.tokens[i], addLiquidityParams.router, 0
                );
                SafeTransferLib.safeApprove(
                    addLiquidityParams.tokens[i],
                    addLiquidityParams.router,
                    addLiquidityParams.desiredAmounts[i]
                );
            }
        }

        if (!atLeastOneNonZero) {
            revert LiquidityAmountError();
        }

        address routerConnector =
            connectorRegistry.connectorOf(addLiquidityParams.router);

        _delegateTo(
            routerConnector,
            abi.encodeCall(
                ILiquidityConnector.addLiquidity, (addLiquidityParams)
            )
        );

        for (uint256 i; i < addLiquidityParamsTokensLength;) {
            if (addLiquidityParams.tokens[i] != address(0)) {
                // Revoke any dust approval in case the amount was estimated
                SafeTransferLib.safeApprove(
                    addLiquidityParams.tokens[i], addLiquidityParams.router, 0
                );
            }
            unchecked {
                i++;
            }
        }
    }

    function zapOut(
        ZapOut memory zap
    ) external {
        if (zap.removeLiquidityParams.lpToken != address(0)) {
            if (zap.removeLiquidityParams.lpAmountIn > 0) {
                SafeTransferLib.safeApprove(
                    zap.removeLiquidityParams.lpToken,
                    zap.removeLiquidityParams.router,
                    zap.removeLiquidityParams.lpAmountIn
                );
            }
            address routerConnector =
                connectorRegistry.connectorOf(zap.removeLiquidityParams.router);
            _delegateTo(
                address(routerConnector),
                abi.encodeCall(
                    ILiquidityConnector.removeLiquidity,
                    zap.removeLiquidityParams
                )
            );
        }

        uint256 swapDataLength = zap.swaps.length;
        for (uint256 i; i < swapDataLength;) {
            _delegateTo(
                address(swapLib), abi.encodeCall(ISwapLib.swap, (zap.swaps[i]))
            );
            unchecked {
                i++;
            }
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

struct AddLiquidityParams {
    address router;
    address lpToken;
    address[] tokens;
    uint256[] desiredAmounts;
    uint256[] minAmounts;
    bytes extraData;
}

struct RemoveLiquidityParams {
    address router;
    address lpToken;
    address[] tokens;
    uint256 lpAmountIn;
    uint256[] minAmountsOut;
    bytes extraData;
}

struct SwapParams {
    address router;
    uint256 amountIn;
    uint256 minAmountOut;
    address tokenIn;
    bytes extraData;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {
    AddLiquidityParams,
    RemoveLiquidityParams,
    SwapParams
} from "contracts/structs/LiquidityStructs.sol";

interface ILiquidityConnector {
    error InvalidPrice();

    function addLiquidity(
        AddLiquidityParams memory addLiquidityParams
    ) external payable;

    function removeLiquidity(
        RemoveLiquidityParams memory removeLiquidityParams
    ) external;

    function swapExactTokensForTokens(
        SwapParams memory swap
    ) external payable;

    function swapExactETHForTokens(
        SwapParams memory swap
    ) external payable;

    function getPoolPrice(
        address lpToken,
        uint256 baseTokenIndex,
        uint256 quoteTokenIndex
    ) external view returns (uint256);

    function getReserves(
        address lpToken
    ) external view returns (uint256[] memory reserves);

    function getTokens(
        address lpToken
    ) external view returns (address[] memory tokens);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

import { Admin } from "contracts/base/Admin.sol";
import { TimelockAdmin } from "contracts/base/TimelockAdmin.sol";

error ConnectorNotRegistered(address target);
error CustomRegistryAlreadyRegistered();

interface ICustomConnectorRegistry {
    function connectorOf(
        address target
    ) external view returns (address);
}

contract ConnectorRegistry is Admin, TimelockAdmin {
    event ConnectorChanged(address target, address connector);
    event CustomRegistryAdded(address registry);
    event CustomRegistryRemoved(address registry);

    error ConnectorAlreadySet(address target);
    error ConnectorNotSet(address target);
    error ArrayLengthMismatch();

    ICustomConnectorRegistry[] public customRegistries;

    mapping(address target => address connector) private connectors_;

    constructor(
        address admin_,
        address timelockAdmin_
    ) Admin(admin_) TimelockAdmin(timelockAdmin_) { }

    /// Admin functions

    /// @notice Update connector addresses for a batch of targets.
    /// @dev Controls which connector contracts are used for the specified
    /// targets.
    /// @custom:access Restricted to protocol admin.
    function setConnectors(
        address[] calldata targets,
        address[] calldata connectors
    ) external onlyAdmin {
        if (targets.length != connectors.length) {
            revert ArrayLengthMismatch();
        }
        for (uint256 i; i != targets.length;) {
            if (connectors_[targets[i]] != address(0)) {
                revert ConnectorAlreadySet(targets[i]);
            }
            connectors_[targets[i]] = connectors[i];
            emit ConnectorChanged(targets[i], connectors[i]);

            unchecked {
                ++i;
            }
        }
    }

    function updateConnectors(
        address[] calldata targets,
        address[] calldata connectors
    ) external onlyTimelockAdmin {
        if (targets.length != connectors.length) {
            revert ArrayLengthMismatch();
        }
        for (uint256 i; i != targets.length;) {
            if (connectors_[targets[i]] == address(0)) {
                revert ConnectorNotSet(targets[i]);
            }
            connectors_[targets[i]] = connectors[i];
            emit ConnectorChanged(targets[i], connectors[i]);

            unchecked {
                ++i;
            }
        }
    }

    /// @notice Append an address to the custom registries list.
    /// @custom:access Restricted to protocol admin.
    function addCustomRegistry(
        ICustomConnectorRegistry registry
    ) external onlyAdmin {
        if (isCustomRegistry(registry)) {
            revert CustomRegistryAlreadyRegistered();
        }

        customRegistries.push(registry);
        emit CustomRegistryAdded(address(registry));
    }

    /// @notice Replace an address in the custom registries list.
    /// @custom:access Restricted to protocol admin.
    function updateCustomRegistry(
        uint256 index,
        ICustomConnectorRegistry newRegistry
    ) external onlyTimelockAdmin {
        ICustomConnectorRegistry oldRegistry = customRegistries[index];
        emit CustomRegistryRemoved(address(oldRegistry));
        customRegistries[index] = newRegistry;
        if (address(newRegistry) != address(0)) {
            emit CustomRegistryAdded(address(newRegistry));
        }
    }

    /// Public functions

    function connectorOf(
        address target
    ) external view returns (address) {
        address connector = _getConnector(target);

        if (connector != address(0)) {
            return connector;
        }

        revert ConnectorNotRegistered(target);
    }

    function hasConnector(
        address target
    ) external view returns (bool) {
        return _getConnector(target) != address(0);
    }

    function isCustomRegistry(
        ICustomConnectorRegistry registry
    ) public view returns (bool) {
        for (uint256 i; i != customRegistries.length;) {
            if (address(customRegistries[i]) == address(registry)) {
                return true;
            }
            unchecked {
                ++i;
            }
        }
        return false;
    }

    /// Internal functions

    function _getConnector(
        address target
    ) internal view returns (address) {
        address connector = connectors_[target];
        if (connector != address(0)) {
            return connector;
        }
        uint256 length = customRegistries.length;
        for (uint256 i; i != length;) {
            if (address(customRegistries[i]) != address(0)) {
                (bool success, bytes memory data) = address(customRegistries[i])
                    .staticcall(
                    abi.encodeWithSelector(
                        ICustomConnectorRegistry.connectorOf.selector, target
                    )
                );
                if (success && data.length == 32) {
                    address _connector = abi.decode(data, (address));
                    if (_connector != address(0)) {
                        return _connector;
                    }
                }
            }

            unchecked {
                ++i;
            }
        }

        return address(0);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

contract DelegateModule {
    function _delegateTo(
        address to,
        bytes memory data
    ) internal returns (bytes memory) {
        (bool success, bytes memory result) = to.delegatecall(data);

        if (!success) {
            if (result.length == 0) revert();
            assembly {
                revert(add(32, result), mload(result))
            }
        }

        return result;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {
    SwapParams,
    AddLiquidityParams,
    RemoveLiquidityParams
} from "contracts/structs/LiquidityStructs.sol";

struct ZapIn {
    SwapParams[] swaps;
    AddLiquidityParams addLiquidityParams;
}

struct ZapOut {
    RemoveLiquidityParams removeLiquidityParams;
    SwapParams[] swaps;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import { ZapIn, ZapOut } from "contracts/structs/ZapStructs.sol";

interface IZapLib {
    function zapIn(
        ZapIn memory zap
    ) external payable;

    function zapOut(
        ZapOut memory zap
    ) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import { SwapParams } from "contracts/structs/LiquidityStructs.sol";

interface ISwapLib {
    function swap(
        SwapParams memory swap
    ) external payable;

    function swapMultiple(
        SwapParams[] memory swaps
    ) external payable;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

/// @title Admin contract
/// @author vfat.tools
/// @notice Provides an administration mechanism allowing restricted functions
abstract contract Admin {
    /// ERRORS ///

    /// @notice Thrown when the caller is not the admin
    error NotAdminError(); //0xb5c42b3b

    /// EVENTS ///

    /// @notice Emitted when a new admin is set
    /// @param oldAdmin Address of the old admin
    /// @param newAdmin Address of the new admin
    event AdminSet(address oldAdmin, address newAdmin);

    /// STORAGE ///

    /// @notice Address of the current admin
    address public admin;

    /// MODIFIERS ///

    /// @dev Restricts a function to the admin
    modifier onlyAdmin() {
        if (msg.sender != admin) revert NotAdminError();
        _;
    }

    /// WRITE FUNCTIONS ///

    /// @param admin_ Address of the admin
    constructor(
        address admin_
    ) {
        emit AdminSet(address(0), admin_);
        admin = admin_;
    }

    /// @notice Sets a new admin
    /// @param newAdmin Address of the new admin
    /// @custom:access Restricted to protocol admin.
    function setAdmin(
        address newAdmin
    ) external onlyAdmin {
        emit AdminSet(admin, newAdmin);
        admin = newAdmin;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

/// @title TimelockAdmin contract
/// @author vfat.tools
/// @notice Provides an timelockAdministration mechanism allowing restricted
/// functions
abstract contract TimelockAdmin {
    /// ERRORS ///

    /// @notice Thrown when the caller is not the timelockAdmin
    error NotTimelockAdminError();

    /// EVENTS ///

    /// @notice Emitted when a new timelockAdmin is set
    /// @param oldTimelockAdmin Address of the old timelockAdmin
    /// @param newTimelockAdmin Address of the new timelockAdmin
    event TimelockAdminSet(address oldTimelockAdmin, address newTimelockAdmin);

    /// STORAGE ///

    /// @notice Address of the current timelockAdmin
    address public timelockAdmin;

    /// MODIFIERS ///

    /// @dev Restricts a function to the timelockAdmin
    modifier onlyTimelockAdmin() {
        if (msg.sender != timelockAdmin) revert NotTimelockAdminError();
        _;
    }

    /// WRITE FUNCTIONS ///

    /// @param timelockAdmin_ Address of the timelockAdmin
    constructor(address timelockAdmin_) {
        emit TimelockAdminSet(timelockAdmin, timelockAdmin_);
        timelockAdmin = timelockAdmin_;
    }

    /// @notice Sets a new timelockAdmin
    /// @dev Can only be called by the current timelockAdmin
    /// @param newTimelockAdmin Address of the new timelockAdmin
    function setTimelockAdmin(address newTimelockAdmin)
        external
        onlyTimelockAdmin
    {
        emit TimelockAdminSet(timelockAdmin, newTimelockAdmin);
        timelockAdmin = newTimelockAdmin;
    }
}

{
  "remappings": [
    "solmate/=lib/solmate/src/",
    "@openzeppelin/=lib/openzeppelin-contracts/",
    "@morpho-blue/=lib/morpho-blue/src/",
    "ds-test/=lib/solmate/lib/ds-test/src/",
    "forge-std/=lib/forge-std/src/",
    "morpho-blue/=lib/morpho-blue/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "paris",
  "viaIR": false,
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"name":"ApproveFailed","type":"error"},{"inputs":[{"components":[{"internalType":"address","name":"stakingContract","type":"address"},{"internalType":"uint256","name":"poolIndex","type":"uint256"}],"internalType":"struct Farm","name":"farm","type":"tuple"},{"internalType":"address","name":"user","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"stakingContract","type":"address"},{"internalType":"uint256","name":"poolIndex","type":"uint256"}],"internalType":"struct Farm","name":"farm","type":"tuple"},{"internalType":"bytes","name":"","type":"bytes"}],"name":"claim","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"stakingContract","type":"address"},{"internalType":"uint256","name":"poolIndex","type":"uint256"}],"internalType":"struct Farm","name":"farm","type":"tuple"},{"internalType":"address","name":"token","type":"address"},{"internalType":"bytes","name":"","type":"bytes"}],"name":"deposit","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"stakingContract","type":"address"},{"internalType":"uint256","name":"poolIndex","type":"uint256"}],"internalType":"struct Farm","name":"farm","type":"tuple"},{"internalType":"address","name":"user","type":"address"},{"internalType":"address[]","name":"","type":"address[]"}],"name":"earned","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"stakingContract","type":"address"},{"internalType":"uint256","name":"poolIndex","type":"uint256"}],"internalType":"struct Farm","name":"","type":"tuple"},{"internalType":"address","name":"","type":"address"}],"name":"isStaked","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"stakingContract","type":"address"},{"internalType":"uint256","name":"poolIndex","type":"uint256"}],"internalType":"struct Farm","name":"farm","type":"tuple"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes","name":"","type":"bytes"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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