false
false
0
Contract Address Details
contract

0xd6F0A53bcD0105Cc90e79C6f0f6616aa3773F1Df

Sponsored: ERAM, a pioneering Central Bank Blockchain. The First Banking Regulatory Blockchain, Licensed by the Central Bank.

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Overview

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0 ERAM ( )

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$0.00

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More Info

Private Name Tags

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Blocks Validated

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Warning! Contract bytecode has been changed and doesn't match the verified one. Therefore, interaction with this smart contract may be risky.
Contract name:
FarmBooster




Optimization enabled
true
Compiler version
v0.8.10+commit.fc410830




Optimization runs
999999
EVM Version
default




Verified at
2024-07-20T04:30:55.832681Z

Constructor Arguments

0x000000000000000000000000eb3c930c1e0d3434ff917ffd77aa813e7d79ae390000000000000000000000007b5cbb38cb84d3d1580eba93ebed551d0b7d7412000000000000000000000000740569bf8d9110b71a3946f4321010c92731e4880000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000000000000000000000000000000000c35000000000000000000000000000000000000000000000000000000000000186a0

Arg [0] (address) : 0xeb3c930c1e0d3434ff917ffd77aa813e7d79ae39
Arg [1] (address) : 0x7b5cbb38cb84d3d1580eba93ebed551d0b7d7412
Arg [2] (address) : 0x740569bf8d9110b71a3946f4321010c92731e488
Arg [3] (uint256) : 3
Arg [4] (uint256) : 50000
Arg [5] (uint256) : 100000

              

contracts/FarmBooster.sol

Sol2uml
new
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

import '@openzeppelin/contracts/access/Ownable.sol';
import '@openzeppelin/contracts/token/ERC20/IERC20.sol';
import './interfaces/ICakePool.sol';
import './interfaces/IMasterChefV3.sol';
import './libraries/IterateMapping.sol';
import './interfaces/IPancakeV3Pool.sol';

contract FarmBooster is Ownable {
    using IterableMapping for ItMap;

    /// @notice Cake token.
    address public immutable CAKE;
    /// @notice Cake pool.
    address public immutable CAKE_POOL;
    /// @notice MasterChef V3 contract.
    IMasterChefV3 public immutable MASTER_CHEF_V3;

    /// @notice Initialize the totalLockedAmount.
    bool initialization;

    /// @notice Cake Pool total locked cake amount.
    uint256 public totalLockedAmount;

    /// @notice The latest total locked cake amount In CakePool
    uint256 latestTotalLockedAmountInCakePool;

    struct UserLockedInfo {
        bool init;
        uint256 lockedAmount;
    }

    /// @notice Record user lockedAmount in cake pool
    mapping(address => UserLockedInfo) public userLockedInfos;

    /// @notice Maximum allowed boosted position numbers
    uint256 public MAX_BOOST_POSITION;
    /// @notice limit max boost
    uint256 public cA;
    /// @notice include 1e4
    uint256 public constant MIN_CA = 1e4;
    /// @notice include 1e5
    uint256 public constant MAX_CA = 1e5;
    /// @notice cA precision
    uint256 public constant CA_PRECISION = 1e5;
    /// @notice controls difficulties
    uint256 public cB;
    /// @notice not include 0
    uint256 public constant MIN_CB = 0;
    /// @notice include 50
    uint256 public constant MAX_CB = 1e8;
    /// @notice cB precision
    uint256 public constant CB_PRECISION = 1e4;
    /// @notice MCV3 basic boost factor, none boosted user"s boost factor
    uint256 public constant BOOST_PRECISION = 100 * 1e10;
    /// @notice MCV3 Hard limit for maxmium boost factor
    uint256 public constant MAX_BOOST_PRECISION = 200 * 1e10;
    /// @notice Average boost ratio precision
    uint256 public constant BOOST_RATIO_PRECISION = 1e5;
    /// @notice Cake pool BOOST_WEIGHT precision
    uint256 public constant BOOST_WEIGHT_PRECISION = 100 * 1e10; // 100%

    /// @notice Override global cB for special pool pid.
    mapping(uint256 => uint256) public cBOverride;

    /// @notice The whitelist of pools allowed for farm boosting.
    mapping(uint256 => bool) public whiteList;

    /// @notice Record whether the farm booster has been turned on, in order to save gas.
    mapping(uint256 => bool) public everBoosted;

    /// @notice Info of each pool user.
    mapping(address => ItMap) public userInfo;

    event UpdateMaxBoostPosition(uint256 max);
    event UpdateCA(uint256 oldCA, uint256 newCA);
    event UpdateCB(uint256 oldCB, uint256 newCB);
    event UpdateCBOverride(uint256 pid, uint256 oldCB, uint256 newCB);
    event UpdateBoostFarms(uint256 pid, bool status);
    event AdjustTotalLockedAmount(bool down, uint256 amount);
    event ActiveFarmPool(address indexed user, uint256 indexed pid, uint256 indexed tokenId);
    event DeactiveFarmPool(address indexed user, uint256 indexed pid, uint256 indexed tokenId);
    event UpdatePoolBoostMultiplier(
        address indexed user,
        uint256 indexed pid,
        uint256 indexed tokenId,
        uint256 oldMultiplier,
        uint256 newMultiplier
    );
    event UpdateCakePool(
        address indexed user,
        uint256 lockedAmount,
        uint256 lockedDuration,
        uint256 totalLockedAmount,
        uint256 maxLockDuration
    );

    /// @param _cake CAKE token contract address.
    /// @param _cakePool Cake Pool contract address.
    /// @param _v3 MasterChefV3 contract address.
    /// @param _max Maximum allowed boosted farm quantity.
    /// @param _cA Limit max boost.
    /// @param _cB Controls difficulties.
    constructor(address _cake, address _cakePool, IMasterChefV3 _v3, uint256 _max, uint256 _cA, uint256 _cB) {
        require(_max > 0 && _cA >= MIN_CA && _cA <= MAX_CA && _cB > MIN_CB && _cB <= MAX_CB, 'Invalid parameter');
        CAKE = _cake;
        CAKE_POOL = _cakePool;
        MASTER_CHEF_V3 = _v3;
        MAX_BOOST_POSITION = _max;
        cA = _cA;
        cB = _cB;
    }

    /// @notice Checks if the msg.sender is the cake pool.
    modifier onlyCakePool() {
        require(msg.sender == CAKE_POOL, 'Not cake pool');
        _;
    }

    /// @notice Checks if the msg.sender is the MasterChef V3.
    modifier onlyMasterChefV3() {
        require(msg.sender == address(MASTER_CHEF_V3), 'Not MasterChef V3');
        _;
    }

    /// @notice Adjust the totalLockedAmount caused by inaccurate calculations.
    /// @param _down Down or up.
    /// @param _amount The amount need to be adjusted.
    function adjustTotalLockedAmount(bool _down, uint256 _amount) external onlyOwner {
        if (_down) {
            totalLockedAmount -= _amount;
        } else {
            totalLockedAmount += _amount;
        }
        emit AdjustTotalLockedAmount(_down, _amount);
    }

    /// @notice set maximum allowed boosted position numbers.
    /// @param _max MAX_BOOST_POSITION.
    function setMaxBoostPosition(uint256 _max) external onlyOwner {
        require(_max > 0, 'Can not be zero');
        MAX_BOOST_POSITION = _max;
        emit UpdateMaxBoostPosition(_max);
    }

    /// @notice Only allow whitelisted pids for farm boosting.
    /// @param _pid pool id(Masterchef V3 pool).
    /// @param _status farm pool allowed boosted or not.
    function setBoosterFarms(uint256 _pid, bool _status) external onlyOwner {
        if (_status && !everBoosted[_pid]) everBoosted[_pid] = true;
        whiteList[_pid] = _status;
        emit UpdateBoostFarms(_pid, _status);
    }

    /// @notice Limit max boost.
    /// @param _cA Max boost.
    function setCA(uint256 _cA) external onlyOwner {
        require(_cA >= MIN_CA && _cA <= MAX_CA, 'Invalid cA');
        uint256 temp = cA;
        cA = _cA;
        emit UpdateCA(temp, cA);
    }

    /// @notice Controls difficulties.
    /// @param _cB Difficulties.
    function setCB(uint256 _cB) external onlyOwner {
        require(_cB > MIN_CB && _cB <= MAX_CB, 'Invalid cB');
        uint256 temp = cB;
        cB = _cB;
        emit UpdateCB(temp, cB);
    }

    /// @notice Set cBOverride.
    /// @param _pid Pool pid.
    /// @param _cB Difficulties.
    function setCBOverride(uint256 _pid, uint256 _cB) external onlyOwner {
        // Can set cBOverride[pid] 0 when need to remove override value.
        require(_cB <= MAX_CB, 'Invalid cB');
        uint256 temp = cB;
        cBOverride[_pid] = _cB;
        emit UpdateCBOverride(_pid, temp, cB);
    }

    /// @notice Calculate totalLockedAmount and update UserLockedInfo.
    /// @dev This is to fix the totalLockedAmount issue in cake pool.
    /// @param _user User address.
    function updateTotalLockedAmount(address _user) internal {
        uint256 totalLockedAmountInCakePool = ICakePool(CAKE_POOL).totalLockedAmount();
        if (!initialization) {
            // Record the totalLockedAmount as the initial value after setting farm booster contract in cake pool.
            initialization = true;
            totalLockedAmount = totalLockedAmountInCakePool;
            latestTotalLockedAmountInCakePool = totalLockedAmountInCakePool;
        }
        (, , , , , , , , uint256 userLockedAmount) = ICakePool(CAKE_POOL).userInfo(_user);
        UserLockedInfo storage lockedInfo = userLockedInfos[_user];
        if (!lockedInfo.init) {
            lockedInfo.init = true;
            lockedInfo.lockedAmount = userLockedAmount;

            // Deposit cake into cake pool.
            if (totalLockedAmountInCakePool >= latestTotalLockedAmountInCakePool) {
                totalLockedAmount += totalLockedAmountInCakePool - latestTotalLockedAmountInCakePool;
            } else {
                // Withdraw cake from cake pool.
                totalLockedAmount -= latestTotalLockedAmountInCakePool - totalLockedAmountInCakePool;
            }
        } else {
            totalLockedAmount = totalLockedAmount - lockedInfo.lockedAmount + userLockedAmount;
            lockedInfo.lockedAmount = userLockedAmount;
        }
        latestTotalLockedAmountInCakePool = totalLockedAmountInCakePool;
    }

    /// @notice Update UserLockedInfo.
    /// @dev This will update the userLockedAmount for the users who had already locked cake in cake pool.
    /// @param _user User address.
    function updateUserLockedAmount(address _user) internal {
        UserLockedInfo storage lockedInfo = userLockedInfos[_user];
        if (initialization && !lockedInfo.init) {
            (, , , , , , , , uint256 userLockedAmount) = ICakePool(CAKE_POOL).userInfo(_user);
            lockedInfo.init = true;
            lockedInfo.lockedAmount = userLockedAmount;
        }
    }

    /// @notice Cakepool operation(deposit/withdraw) automatically call this function.
    /// @param _user User address.
    /// @param _lockedAmount User locked amount in cake pool.
    /// @param _lockedDuration User locked duration in cake pool.
    /// @param _totalLockedAmount Total locked cake amount in cake pool.
    /// @param _maxLockDuration Maximum locked duration in cake pool.
    function onCakePoolUpdate(
        address _user,
        uint256 _lockedAmount,
        uint256 _lockedDuration,
        uint256 _totalLockedAmount,
        uint256 _maxLockDuration
    ) external onlyCakePool {
        updateTotalLockedAmount(_user);
        ItMap storage itmap = userInfo[_user];
        uint256 length = itmap.keys.length;
        if (length > 0) {
            uint256 avgDuration = avgLockDuration();
            for (uint256 i = 0; i < length; i++) {
                uint256 tokenId = itmap.keys[i];
                (uint128 liquidity, address user, uint256 pid, ) = getUserPositionInfo(tokenId);
                if (_user == user) _updateBoostMultiplier(itmap, user, pid, tokenId, avgDuration, liquidity);
            }
        }
        emit UpdateCakePool(_user, _lockedAmount, _lockedDuration, _totalLockedAmount, _maxLockDuration);
    }

    /// @notice Update user boost multiplier, only for MasterChef V3.
    /// @param _tokenId Token Id of position NFT.
    function updatePositionBoostMultiplier(uint256 _tokenId) external onlyMasterChefV3 returns (uint256 _multiplier) {
        (uint128 liquidity, address user, uint256 pid, ) = getUserPositionInfo(_tokenId);
        // Set default multiplier
        _multiplier = BOOST_PRECISION;
        // In order to save gas, no need to check the farms which have never beed boosted.
        if (everBoosted[pid]) {
            ItMap storage itmap = userInfo[user];
            uint256 prevMultiplier = itmap.data[_tokenId];
            if (prevMultiplier == 0) return BOOST_PRECISION;
            if (!whiteList[pid]) {
                if (itmap.contains(_tokenId)) {
                    itmap.remove(_tokenId);
                    emit DeactiveFarmPool(user, pid, _tokenId);
                }
            } else {
                _multiplier = _boostCalculate(user, pid, avgLockDuration(), uint256(liquidity));
                itmap.insert(_tokenId, _multiplier);
            }
            emit UpdatePoolBoostMultiplier(user, pid, _tokenId, prevMultiplier, _multiplier);
        }
    }

    /// @notice Remove user boost multiplier when user withdraw or butn in MasterChef V3.
    /// @param _user User address.
    /// @param _tokenId Token Id of position NFT.
    /// @param _pid Id of MasterChef V3 farm pool.
    function removeBoostMultiplier(address _user, uint256 _tokenId, uint256 _pid) external onlyMasterChefV3 {
        // In order to save gas, no need to check the farms which have never beed boosted.
        if (everBoosted[_pid]) {
            ItMap storage itmap = userInfo[_user];
            if (itmap.contains(_tokenId)) {
                itmap.remove(_tokenId);
                emit DeactiveFarmPool(_user, _pid, _tokenId);
            }
        }
    }

    /// @notice Active user farm pool.
    /// @param _tokenId Token Id of position NFT.
    function activate(uint256 _tokenId) external {
        (uint128 liquidity, address user, uint256 pid, ) = getUserPositionInfo(_tokenId);
        require(whiteList[pid], 'Not boosted farm pool');
        require(user == msg.sender, 'Not owner');
        ItMap storage itmap = userInfo[user];
        require(!itmap.contains(_tokenId), 'Already boosted');
        require(itmap.keys.length < MAX_BOOST_POSITION, 'Boosted positions reach to MAX');
        updateUserLockedAmount(user);

        _updateBoostMultiplier(itmap, user, pid, _tokenId, avgLockDuration(), uint256(liquidity));

        emit ActiveFarmPool(user, pid, _tokenId);
    }

    /// @notice Deactive user farm pool.
    /// @param _tokenId Token Id of position NFT.
    function deactive(uint256 _tokenId) external {
        ItMap storage itmap = userInfo[msg.sender];
        require(itmap.contains(_tokenId), 'None boost user');

        if (itmap.data[_tokenId] > BOOST_PRECISION) {
            MASTER_CHEF_V3.updateBoostMultiplier(_tokenId, BOOST_PRECISION);
        }
        itmap.remove(_tokenId);

        (, , uint256 pid, ) = getUserPositionInfo(_tokenId);
        emit DeactiveFarmPool(msg.sender, pid, _tokenId);
    }

    /// @param _user user address.
    /// @param _pid pool id.
    /// @param _tokenId token id.
    /// @param _duration cake pool average locked duration.
    /// @param _liquidity position liquidity.
    function _updateBoostMultiplier(
        ItMap storage itmap,
        address _user,
        uint256 _pid,
        uint256 _tokenId,
        uint256 _duration,
        uint256 _liquidity
    ) internal {
        // Used to be boost farm pool and current is not, remove from mapping
        if (!whiteList[_pid]) {
            if (itmap.data[_tokenId] > BOOST_PRECISION) {
                // reset to BOOST_PRECISION
                MASTER_CHEF_V3.updateBoostMultiplier(_tokenId, BOOST_PRECISION);
            }
            itmap.remove(_tokenId);
            emit DeactiveFarmPool(_user, _pid, _tokenId);
            return;
        }

        (, , , uint256 prevMultiplier) = getUserPositionInfo(_tokenId);
        uint256 multiplier = _boostCalculate(_user, _pid, _duration, _liquidity);

        if (multiplier < BOOST_PRECISION) {
            multiplier = BOOST_PRECISION;
        } else if (multiplier > MAX_BOOST_PRECISION) {
            multiplier = MAX_BOOST_PRECISION;
        }

        // Update multiplier to MCV3
        if (multiplier != prevMultiplier) {
            MASTER_CHEF_V3.updateBoostMultiplier(_tokenId, multiplier);
        }
        itmap.insert(_tokenId, multiplier);

        emit UpdatePoolBoostMultiplier(_user, _pid, _tokenId, prevMultiplier, multiplier);
    }

    /// @notice Whether position boosted specific farm pool.
    /// @param _tokenId Token Id of position NFT.
    function isBoostedPool(uint256 _tokenId) external view returns (bool, uint256) {
        (, address user, uint256 pid, ) = getUserPositionInfo(_tokenId);
        return (userInfo[user].contains(_tokenId), pid);
    }

    /// @notice Actived position list.
    /// @param _user user address.
    function activedPositions(address _user) external view returns (uint256[] memory positions) {
        ItMap storage itmap = userInfo[_user];
        if (itmap.keys.length == 0) return positions;

        positions = new uint256[](itmap.keys.length);
        // solidity for-loop not support multiple variables initializae by "," separate.
        for (uint256 index = 0; index < itmap.keys.length; index++) {
            positions[index] = itmap.keys[index];
        }
    }

    function getUserPositionInfo(
        uint256 _tokenId
    ) internal view returns (uint128 liquidity, address user, uint256 pid, uint256 boostMultiplier) {
        (liquidity, , , , , , user, pid, boostMultiplier) = MASTER_CHEF_V3.userPositionInfos(_tokenId);
    }

    /// @notice Anyone can call this function, if you find some guys effectived multiplier is not fair
    /// for other users, just call "updateLiquidity" function in MasterChef V3.
    /// @param _tokenId Token Id of position NFT.
    /// @dev If return value not in range [BOOST_PRECISION, MAX_BOOST_PRECISION]
    /// the actual effectived multiplier will be the close to side boundry value.
    function getUserMultiplier(uint256 _tokenId) external view returns (uint256) {
        (uint128 liquidity, address user, uint256 pid, ) = getUserPositionInfo(_tokenId);
        if (!whiteList[pid]) {
            return BOOST_PRECISION;
        } else {
            return _boostCalculate(user, pid, avgLockDuration(), uint256(liquidity));
        }
    }

    /// @notice Cake pool average locked duration calculator.
    function avgLockDuration() public view returns (uint256) {
        uint256 totalStakedAmount = IERC20(CAKE).balanceOf(CAKE_POOL);

        uint256 pricePerFullShare = ICakePool(CAKE_POOL).getPricePerFullShare();

        uint256 flexibleShares;
        if (totalStakedAmount > totalLockedAmount && pricePerFullShare > 0)
            flexibleShares = ((totalStakedAmount - totalLockedAmount) * 1e18) / pricePerFullShare;
        if (flexibleShares == 0) return 0;

        uint256 originalShares = (totalLockedAmount * 1e18) / pricePerFullShare;
        if (originalShares == 0) return 0;

        uint256 boostedRatio = ((ICakePool(CAKE_POOL).totalShares() - flexibleShares) * BOOST_RATIO_PRECISION) /
            originalShares;
        if (boostedRatio <= BOOST_RATIO_PRECISION) return 0;

        uint256 boostWeight = ICakePool(CAKE_POOL).BOOST_WEIGHT();
        uint256 maxLockDuration = ICakePool(CAKE_POOL).MAX_LOCK_DURATION() * BOOST_RATIO_PRECISION;

        uint256 duration = ((boostedRatio - BOOST_RATIO_PRECISION) * 365 * BOOST_WEIGHT_PRECISION) / boostWeight;
        return duration <= maxLockDuration ? duration : maxLockDuration;
    }

    /// @notice Get the total liquidity.
    /// @dev Will use the smaller value between MasterChefV3 pool totalLiquidity and V3 pool liquidity.
    /// @param _pid pool id(MasterchefV3 pool).
    function _getTotalLiquidity(uint256 _pid) internal view returns (uint256) {
        (, address v3Pool, , , , uint256 totalLiquidity, ) = MASTER_CHEF_V3.poolInfo(_pid);
        uint256 v3PoolLiquidity = IPancakeV3Pool(v3Pool).liquidity();
        if (totalLiquidity > v3PoolLiquidity) {
            totalLiquidity = v3PoolLiquidity;
        }
        return totalLiquidity;
    }

    /// @param _user user address.
    /// @param _pid pool id(MasterchefV3 pool).
    /// @param _duration cake pool average locked duration.
    /// @param _liquidity position liquidity.
    function _boostCalculate(
        address _user,
        uint256 _pid,
        uint256 _duration,
        uint256 _liquidity
    ) internal view returns (uint256) {
        if (_duration == 0) return BOOST_PRECISION;

        uint256 dB = (cA * _liquidity) / CA_PRECISION;
        // dB == 0 means _liquidity close to 0
        if (_liquidity == 0 || dB == 0) return BOOST_PRECISION;

        (, , , , uint256 lockStartTime, uint256 lockEndTime, , , uint256 userLockedAmount) = ICakePool(CAKE_POOL)
            .userInfo(_user);
        if (userLockedAmount == 0 || block.timestamp >= lockEndTime) return BOOST_PRECISION;

        uint256 totalLiquidity = _getTotalLiquidity(_pid);

        uint256 userLockedDuration = (lockEndTime - lockStartTime) / (3600 * 24); // days

        // will use cBOverride[pid] If cBOverride[pid] is greater than 0 , or will use global cB.
        uint256 realCB = cBOverride[_pid] > 0 ? cBOverride[_pid] : cB;

        uint256 aB = (((totalLiquidity * userLockedAmount * userLockedDuration) *
            BOOST_RATIO_PRECISION *
            CB_PRECISION) / realCB) / (totalLockedAmount * _duration);

        // should "*" BOOST_PRECISION
        return ((_liquidity < (dB + aB) ? _liquidity : (dB + aB)) * BOOST_PRECISION) / dB;
    }
}
        

@openzeppelin/contracts/access/Ownable.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}
          

@openzeppelin/contracts/token/ERC20/IERC20.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (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);
}
          

@openzeppelin/contracts/utils/Context.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}
          

contracts/interfaces/ICakePool.sol

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

interface ICakePool {
    function userInfo(
        address _user
    ) external view returns (uint256, uint256, uint256, uint256, uint256, uint256, uint256, bool, uint256);

    function getPricePerFullShare() external view returns (uint256);

    function totalLockedAmount() external view returns (uint256);

    function totalShares() external view returns (uint256);

    function BOOST_WEIGHT() external view returns (uint256);

    function MAX_LOCK_DURATION() external view returns (uint256);
}
          

contracts/interfaces/IMasterChefV3.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

interface IMasterChefV3 {
    function userPositionInfos(
        uint256 _tokenId
    ) external view returns (uint128, uint128, int24, int24, uint256, uint256, address, uint256, uint256);

    function poolInfo(
        uint256 _pid
    ) external view returns (uint256, address, address, address, uint24, uint256, uint256);

    function getBoostMultiplier(address _user, uint256 _pid) external view returns (uint256);

    function updateBoostMultiplier(uint256 _tokenId, uint256 _newMultiplier) external;
}
          

contracts/interfaces/IPancakeV3Pool.sol

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

interface IPancakeV3Pool {
    /// @notice The currently in range liquidity available to the pool
    /// @dev This value has no relationship to the total liquidity across all ticks
    function liquidity() external view returns (uint128);
}
          

contracts/libraries/IterateMapping.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

struct ItMap {
    // pid => boost
    mapping(uint256 => uint256) data;
    // pid => index
    mapping(uint256 => uint256) indexs;
    // array of pid
    uint256[] keys;
    // never use it, just for keep compile success.
    uint256 size;
}

library IterableMapping {
    function insert(ItMap storage self, uint256 key, uint256 value) internal {
        uint256 keyIndex = self.indexs[key];
        self.data[key] = value;
        if (keyIndex > 0) return;
        else {
            self.indexs[key] = self.keys.length + 1;
            self.keys.push(key);
            return;
        }
    }

    function remove(ItMap storage self, uint256 key) internal {
        uint256 index = self.indexs[key];
        if (index == 0) return;
        uint256 lastKey = self.keys[self.keys.length - 1];
        if (key != lastKey) {
            self.keys[index - 1] = lastKey;
            self.indexs[lastKey] = index;
        }
        delete self.data[key];
        delete self.indexs[key];
        self.keys.pop();
    }

    function contains(ItMap storage self, uint256 key) internal view returns (bool) {
        return self.indexs[key] > 0;
    }
}
          

Compiler Settings

{"outputSelection":{"*":{"*":["abi","evm.bytecode","evm.deployedBytecode","evm.methodIdentifiers","metadata","storageLayout"],"":["ast"]}},"optimizer":{"runs":999999,"enabled":true},"libraries":{}}
              

Contract ABI

[{"type":"constructor","stateMutability":"nonpayable","inputs":[{"type":"address","name":"_cake","internalType":"address"},{"type":"address","name":"_cakePool","internalType":"address"},{"type":"address","name":"_v3","internalType":"contract IMasterChefV3"},{"type":"uint256","name":"_max","internalType":"uint256"},{"type":"uint256","name":"_cA","internalType":"uint256"},{"type":"uint256","name":"_cB","internalType":"uint256"}]},{"type":"event","name":"ActiveFarmPool","inputs":[{"type":"address","name":"user","internalType":"address","indexed":true},{"type":"uint256","name":"pid","internalType":"uint256","indexed":true},{"type":"uint256","name":"tokenId","internalType":"uint256","indexed":true}],"anonymous":false},{"type":"event","name":"AdjustTotalLockedAmount","inputs":[{"type":"bool","name":"down","internalType":"bool","indexed":false},{"type":"uint256","name":"amount","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"DeactiveFarmPool","inputs":[{"type":"address","name":"user","internalType":"address","indexed":true},{"type":"uint256","name":"pid","internalType":"uint256","indexed":true},{"type":"uint256","name":"tokenId","internalType":"uint256","indexed":true}],"anonymous":false},{"type":"event","name":"OwnershipTransferred","inputs":[{"type":"address","name":"previousOwner","internalType":"address","indexed":true},{"type":"address","name":"newOwner","internalType":"address","indexed":true}],"anonymous":false},{"type":"event","name":"UpdateBoostFarms","inputs":[{"type":"uint256","name":"pid","internalType":"uint256","indexed":false},{"type":"bool","name":"status","internalType":"bool","indexed":false}],"anonymous":false},{"type":"event","name":"UpdateCA","inputs":[{"type":"uint256","name":"oldCA","internalType":"uint256","indexed":false},{"type":"uint256","name":"newCA","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"UpdateCB","inputs":[{"type":"uint256","name":"oldCB","internalType":"uint256","indexed":false},{"type":"uint256","name":"newCB","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"UpdateCBOverride","inputs":[{"type":"uint256","name":"pid","internalType":"uint256","indexed":false},{"type":"uint256","name":"oldCB","internalType":"uint256","indexed":false},{"type":"uint256","name":"newCB","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"UpdateCakePool","inputs":[{"type":"address","name":"user","internalType":"address","indexed":true},{"type":"uint256","name":"lockedAmount","internalType":"uint256","indexed":false},{"type":"uint256","name":"lockedDuration","internalType":"uint256","indexed":false},{"type":"uint256","name":"totalLockedAmount","internalType":"uint256","indexed":false},{"type":"uint256","name":"maxLockDuration","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"UpdateMaxBoostPosition","inputs":[{"type":"uint256","name":"max","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"UpdatePoolBoostMultiplier","inputs":[{"type":"address","name":"user","internalType":"address","indexed":true},{"type":"uint256","name":"pid","internalType":"uint256","indexed":true},{"type":"uint256","name":"tokenId","internalType":"uint256","indexed":true},{"type":"uint256","name":"oldMultiplier","internalType":"uint256","indexed":false},{"type":"uint256","name":"newMultiplier","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"BOOST_PRECISION","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"BOOST_RATIO_PRECISION","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"BOOST_WEIGHT_PRECISION","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"CAKE","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"CAKE_POOL","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"CA_PRECISION","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"CB_PRECISION","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"contract IMasterChefV3"}],"name":"MASTER_CHEF_V3","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"MAX_BOOST_POSITION","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"MAX_BOOST_PRECISION","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"MAX_CA","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"MAX_CB","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"MIN_CA","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"MIN_CB","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"activate","inputs":[{"type":"uint256","name":"_tokenId","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256[]","name":"positions","internalType":"uint256[]"}],"name":"activedPositions","inputs":[{"type":"address","name":"_user","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"adjustTotalLockedAmount","inputs":[{"type":"bool","name":"_down","internalType":"bool"},{"type":"uint256","name":"_amount","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"avgLockDuration","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"cA","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"cB","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"cBOverride","inputs":[{"type":"uint256","name":"","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"deactive","inputs":[{"type":"uint256","name":"_tokenId","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"everBoosted","inputs":[{"type":"uint256","name":"","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"getUserMultiplier","inputs":[{"type":"uint256","name":"_tokenId","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"bool","name":"","internalType":"bool"},{"type":"uint256","name":"","internalType":"uint256"}],"name":"isBoostedPool","inputs":[{"type":"uint256","name":"_tokenId","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"onCakePoolUpdate","inputs":[{"type":"address","name":"_user","internalType":"address"},{"type":"uint256","name":"_lockedAmount","internalType":"uint256"},{"type":"uint256","name":"_lockedDuration","internalType":"uint256"},{"type":"uint256","name":"_totalLockedAmount","internalType":"uint256"},{"type":"uint256","name":"_maxLockDuration","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"owner","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"removeBoostMultiplier","inputs":[{"type":"address","name":"_user","internalType":"address"},{"type":"uint256","name":"_tokenId","internalType":"uint256"},{"type":"uint256","name":"_pid","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"renounceOwnership","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setBoosterFarms","inputs":[{"type":"uint256","name":"_pid","internalType":"uint256"},{"type":"bool","name":"_status","internalType":"bool"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setCA","inputs":[{"type":"uint256","name":"_cA","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setCB","inputs":[{"type":"uint256","name":"_cB","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setCBOverride","inputs":[{"type":"uint256","name":"_pid","internalType":"uint256"},{"type":"uint256","name":"_cB","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setMaxBoostPosition","inputs":[{"type":"uint256","name":"_max","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"totalLockedAmount","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"transferOwnership","inputs":[{"type":"address","name":"newOwner","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"uint256","name":"_multiplier","internalType":"uint256"}],"name":"updatePositionBoostMultiplier","inputs":[{"type":"uint256","name":"_tokenId","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"size","internalType":"uint256"}],"name":"userInfo","inputs":[{"type":"address","name":"","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"bool","name":"init","internalType":"bool"},{"type":"uint256","name":"lockedAmount","internalType":"uint256"}],"name":"userLockedInfos","inputs":[{"type":"address","name":"","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"whiteList","inputs":[{"type":"uint256","name":"","internalType":"uint256"}]}]
              

Contract Creation Code

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