S Price: $0.867385 (+0.20%)

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0xc702af24a8722f7719B581d57faaa5770ef998BB

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S Balance

Sonic LogoSonic LogoSonic Logo0 S

S Value

$0.00

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Contract Source Code Verified (Exact Match)

Contract Name:
Voter

Compiler Version
v0.8.20+commit.a1b79de6

Optimization Enabled:
Yes with 800 runs

Other Settings:
shanghai EvmVersion
File 1 of 27 : Voter.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import {SafeERC20, IERC20} from "openzeppelin/token/ERC20/utils/SafeERC20.sol";
import {Ownable2StepUpgradeable} from "openzeppelin-contracts-upgradeable/access/Ownable2StepUpgradeable.sol";
import {EnumerableSet} from "openzeppelin/utils/structs/EnumerableSet.sol";
import {EnumerableMap} from "openzeppelin/utils/structs/EnumerableMap.sol";

import {IMetroStaking} from "./interfaces/IMetroStaking.sol";
import {IBribeRewarder} from "./interfaces/IBribeRewarder.sol";
import {IRewarderFactory} from "./interfaces/IRewarderFactory.sol";
import {IMasterChef, IMasterChefRewarder} from "./interfaces/IMasterChef.sol";
import {IVoterPoolValidator} from "./interfaces/IVoterPoolValidator.sol";
import {IVoter} from "./interfaces/IVoter.sol";
import {Amounts} from "./libraries/Amounts.sol";
import {Constants} from "./libraries/Constants.sol";

contract Voter is Ownable2StepUpgradeable, IVoter {
    using Amounts for Amounts.Parameter;
    using EnumerableSet for EnumerableSet.UintSet;
    using EnumerableSet for EnumerableSet.Bytes32Set;

    using EnumerableMap for EnumerableMap.AddressToUintMap;

    IMasterChef internal immutable _masterChef;
    IMetroStaking internal immutable _mlumStaking;
    IRewarderFactory internal immutable _rewarderFactory;

    uint256 private _currentVotingPeriodId;

    /// @dev votingPeriodId => tokenId => hasVoted
    mapping(uint256 => mapping(uint256 => bool)) private _hasVotedInPeriod;

    /// @dev period => total amount of votes
    mapping(uint256 => uint256) private _totalVotesInPeriod; // total Weight in period

    /// @dev minimum votes (mlum) to get created
    uint256 private _minimumVotesPerPool = 50e18;

    uint256 private _periodDuration = 1209600;

    uint256 private _minimumLockTime = 60 * 60 * 24 * 30 * 3;

    /// @dev period => pool => votes
    mapping(uint256 => mapping(address => uint256)) private _poolVotesPerPeriod;

    // period id => rewarders;
    mapping(uint256 => EnumerableSet.Bytes32Set)
        private _registeredBribesPerPeriod; //extra check

    // periodId => account  => bribes
    mapping(uint256 periodId => mapping(address account => IBribeRewarder[])) private _userBribesPerPeriod;

    // periodId => pool => bribeRewarders
    mapping(uint256 => mapping(address => IBribeRewarder[]))
        private _bribesPerPriod;

    /// @dev tokenId => pool => votes
    mapping(uint256 => mapping(address => uint256)) private _userVotes;

    /// @dev period => startTime
    mapping(uint256 => VotingPeriod) _startTimes;

    /// @dev votes per pool
    EnumerableMap.AddressToUintMap private _votes;

    /// @dev total votes
    uint256 private _totalVotes;

    /// @dev weight per pid
    mapping(uint256 => uint256) private _weights; // pid => weight

    /// @dev totalWeight of pids
    uint256 private _topPidsTotalWeights;

    /// @dev stores the top pids
    EnumerableSet.UintSet private _topPids;

    /// @dev set pool validator;
    IVoterPoolValidator private _poolValidator;

    /// @dev operator for the voter
    address private _operator;

    /// @dev holds elevated rewarders eligible bribing beyond the bribe limit per pool
    mapping(address rewarder => bool isElevated) private _elevatedRewarders;

    uint256[9] __gap;

    constructor(
        IMasterChef masterChef,
        IMetroStaking mlumStaking,
        IRewarderFactory factory
    ) {
        _disableInitializers();

        _masterChef = masterChef;
        _mlumStaking = mlumStaking;
        _rewarderFactory = factory;
    }

    /**
     * @dev Initializes the contract.
     * @param initialOwner The initial owner of the contract.
     */
    function initialize(address initialOwner) external reinitializer(2) {
        __Ownable_init(initialOwner);

        _minimumVotesPerPool = 50e18;
        _periodDuration = 1209600;
        _minimumLockTime = 60 * 60 * 24 * 30 * 3;
    }

    /**
     * @dev start a new voting period
     */
    function startNewVotingPeriod() public {
        if (msg.sender != _operator) _checkOwner();

        _currentVotingPeriodId++;

        VotingPeriod storage period = _startTimes[_currentVotingPeriodId];
        period.startTime = block.timestamp;
        period.endTime = block.timestamp + _periodDuration;

        emit VotingPeriodStarted();
    }

    function _votingStarted() internal view returns (bool) {
        return
            _startTimes[_currentVotingPeriodId].startTime != 0 &&
            _startTimes[_currentVotingPeriodId].startTime <= block.timestamp;
    }

    function _votingEnded() internal view returns (bool) {
        return
            _votingStarted() &&
            _startTimes[_currentVotingPeriodId].endTime <= block.timestamp;
    }

    /**
     * @dev bribe rewarder registers itself
     * Checks if rewarder is from allowed rewarderFactory
     */
    function onRegister() external override {
        IBribeRewarder rewarder = IBribeRewarder(msg.sender);

        _checkRegisterCaller(rewarder);
        
        uint256 currentPeriodId = _currentVotingPeriodId;

        bool isElevated = _elevatedRewarders[address(rewarder)];

        (address pool, uint256[] memory periods) = rewarder.getBribePeriods();
        for (uint256 i = 0; i < periods.length; ++i) {
            require(periods[i] >= currentPeriodId, "wrong period");
            // only admin is allowed to add more bribes when limit is reached
            require(_bribesPerPriod[periods[i]][pool].length + 1 <= Constants.MAX_BRIBES_PER_POOL || isElevated, "too much bribes");

            _bribesPerPriod[periods[i]][pool].push(rewarder);
        }

        // remove elevated status
        if (isElevated) {
            delete _elevatedRewarders[address(rewarder)];
        }
    }

    /**
     * Cast votes for current voting period
     *
     * @param tokenId - token id of mlum staking position
     * @param pools - array of pool addresses
     * @param deltaAmounts - array of amounts must not exceed the total voting power
     */
    function vote(
        uint256 tokenId,
        address[] calldata pools,
        uint256[] calldata deltaAmounts
    ) external {
        if (pools.length != deltaAmounts.length) revert IVoter__InvalidLength();

        // check voting started
        if (!_votingStarted()) revert IVoter_VotingPeriodNotStarted();
        if (_votingEnded()) revert IVoter_VotingPeriodEnded();

        // dont allow voting if emergency unlock is active
        if (_mlumStaking.isUnlocked()) {
            revert IVoter__EmergencyUnlock();
        }

        // check ownership of tokenId
        address voterAccount = _mlumStaking.ownerOf(tokenId);
        if (voterAccount != msg.sender) {
            revert IVoter__NotOwner();
        }

        uint256 currentPeriodId = _currentVotingPeriodId;
        // check if alreay voted
        if (_hasVotedInPeriod[currentPeriodId][tokenId]) {
            revert IVoter__AlreadyVoted();
        }

        uint256 totalUserVotes;
        {
            // scope to avoid stack too deep

            IMetroStaking.StakingPosition memory position = _mlumStaking
                .getStakingPosition(tokenId);

            // check initialLockDuration and remaining lock durations
            _checkLockDurations(position);

            uint256 votingPower = position.amountWithMultiplier;

            // check if deltaAmounts > votingPower

            for (uint256 i = 0; i < pools.length; ++i) {
                totalUserVotes += deltaAmounts[i];
            }

            if (totalUserVotes > votingPower) {
                revert IVoter__InsufficientVotingPower();
            }
        }

        IVoterPoolValidator validator = _poolValidator;

        for (uint256 i = 0; i < pools.length; ++i) {
            address pool = pools[i];

            if (address(validator) != address(0) && !validator.isValid(pool)) {
                revert Voter__PoolNotVotable();
            }

            uint256 deltaAmount = deltaAmounts[i];

            _userVotes[tokenId][pool] += deltaAmount;
            _poolVotesPerPeriod[currentPeriodId][pool] += deltaAmount;

            if (_votes.contains(pool)) {
                _votes.set(pool, _votes.get(pool) + deltaAmount);
            } else {
                _votes.set(pool, deltaAmount);
            }

            _notifyBribes(_currentVotingPeriodId, pool, voterAccount, deltaAmount); // msg.sender, deltaAmount);
        }

        _totalVotes += totalUserVotes;

        _hasVotedInPeriod[currentPeriodId][tokenId] = true;

        emit Voted(tokenId, currentPeriodId, pools, deltaAmounts);
    }

    function _checkLockDurations(
        IMetroStaking.StakingPosition memory position
    ) internal view {
        if (position.initialLockDuration < _minimumLockTime) {
            revert IVoter__InsufficientLockTime();
        }
        // check if the position is locked for the voting period
        uint256 _votingEndTime = _startTimes[_currentVotingPeriodId].endTime;
        if (_votingEndTime > block.timestamp) {
            uint256 _remainingVotingTime = _votingEndTime - block.timestamp;
            if (_remainingLockTime(position) < _remainingVotingTime) {
                revert IVoter__InsufficientLockTime();
            }
        }
    }

    function _remainingLockTime(
        IMetroStaking.StakingPosition memory position
    ) internal view returns (uint256) {
        uint256 blockTimestamp = block.timestamp;
        if (
            (position.startLockTime + position.lockDuration) <= blockTimestamp
        ) {
            return 0;
        }
        return
            (position.startLockTime + position.lockDuration) - blockTimestamp;
    }

    function _notifyBribes(
        uint256 periodId,
        address pool,
        address account,
        uint256 deltaAmount
    ) private {
        IBribeRewarder[] storage rewarders = _bribesPerPriod[periodId][pool];
        for (uint256 i = 0; i < rewarders.length; ++i) {
            if (address(rewarders[i]) != address(0)) {
                rewarders[i].deposit(periodId, account, deltaAmount);
                _userBribesPerPeriod[periodId][account].push(rewarders[i]);
            }
        }
    }

    /**
     * @dev Set farm pools with their weight;
     *
     * WARNING:
     * Caller is responsible to updateAll all pids on masterChef before using this function!
     *
     * @param pids - list of pids
     * @param weights - list of weights
     */
    function setTopPoolIdsWithWeights(
        uint256[] calldata pids,
        uint256[] calldata weights
    ) external {
        if (msg.sender != _operator) _checkOwner();

        uint256 length = pids.length;
        if (length != weights.length) revert IVoter__InvalidLength();

        uint256[] memory oldIds = _topPids.values();

        if (oldIds.length > 0) {
            // masterchef snould be updated beforehand

            for (uint256 i = oldIds.length; i > 0; ) {
                uint256 pid = oldIds[--i];

                _topPids.remove(pid);
                _weights[pid] = 0;
            }
        }

        for (uint256 i; i < length; ++i) {
            uint256 pid = pids[i];
            if (!_topPids.add(pid)) revert IVoter__DuplicatePoolId(pid);
        }

        uint256 totalWeights;
        for (uint256 i; i < length; ++i) {
            uint256 pid = pids[i];

            uint256 weight = weights[i];

            _weights[pid] = weight;

            totalWeights += weight;
        }

        _topPidsTotalWeights = totalWeights;

        emit TopPoolIdsWithWeightsSet(pids, weights);
    }

    function updatePoolValidator(
        IVoterPoolValidator poolValidator
    ) external onlyOwner {
        _poolValidator = poolValidator;
        emit VoterPoolValidatorUpdated(address(poolValidator));
    }

    /**
     * @dev returns current voting period
     */
    function getCurrentVotingPeriod() external view override returns (uint256) {
        return _currentVotingPeriodId;
    }

    /**
     * @dev returns current period start time
     */
    function getPeriodStartTime() external view override returns (uint256) {
        return _startTimes[_currentVotingPeriodId].startTime;
    }

    /**
     * @dev get votes per period
     * @param periodId - period of the vote
     * @param pool - pool address
     */
    function getVotesPerPeriod(
        uint256 periodId,
        address pool
    ) external view override returns (uint256) {
        return _poolVotesPerPeriod[periodId][pool];
    }

    /**
     * @dev get total accrued votes
     */
    function getTotalVotes() external view override returns (uint256) {
        return _totalVotes;
    }

    /**
     * @dev Get accrued user votes for given tokenId and pool
     *
     */
    function getUserVotes(
        uint256 tokenId,
        address pool
    ) external view override returns (uint256) {
        return _userVotes[tokenId][pool];
    }

    /**
     * @dev Get pool votes for given period
     */
    function getPoolVotesPerPeriod(
        uint256 periodId,
        address pool
    ) external view override returns (uint256) {
        return _poolVotesPerPeriod[periodId][pool];
    }

    /**
     * @dev Get accrued pool votes
     */
    function getPoolVotes(address pool) external view returns (uint256) {
        if (_votes.contains(pool)) {
            return _votes.get(pool);
        }
        return 0;
    }

    /**
     * @dev get voted pools
     */
    function getVotedPools() external view returns (address[] memory) {
        return _votes.keys();
    }

    /**
     * returns votedPoolsLengths
     */
    function getVotedPoolsLength() external view returns (uint256) {
        return _votes.length();
    }

    function getVotedPoolsAtIndex(
        uint256 index
    ) external view returns (address, uint256) {
        return _votes.at(index);
    }

    function getMlumStaking() external view returns (IMetroStaking) {
        return _mlumStaking;
    }

    function getMasterChef() external view override returns (IMasterChef) {
        return _masterChef;
    }

    function getTotalWeight() external view override returns (uint256) {
        return _topPidsTotalWeights;
    }

    function getTopPoolIds() external view override returns (uint256[] memory) {
        return _topPids.values();
    }

    function getWeight(uint256 pid) external view override returns (uint256) {
        return _weights[pid];
    }

    function hasVoted(
        uint256 periodId,
        uint256 tokenId
    ) external view override returns (bool) {
        return _hasVotedInPeriod[periodId][tokenId];
    }

    function ownerOf(
        uint256 tokenId,
        address account
    ) external view returns (bool) {
        return _mlumStaking.ownerOf(tokenId) == account;
    }

    /**
     * @dev get bribe rewarder at index
     */
    function getUserBribeRewaderAt(uint256 period, address account, uint256 index)
        external
        view
        returns (IBribeRewarder)
    {
        return _userBribesPerPeriod[period][account][index];
    }

    /**
     * Returns number of bribe rewarders for period and account
     */
    function getUserBribeRewarderLength(uint256 period, address account) external view returns (uint256) {
        return _userBribesPerPeriod[period][account].length;
    }

    /**
     * checks if rewarder registers on rewarderfactory
     */
    function _checkRegisterCaller(IBribeRewarder rewarder) internal view {
        if (
            _rewarderFactory.getRewarderType(rewarder) !=
            IRewarderFactory.RewarderType.BribeRewarder
        ) {
            revert Voter__InvalidRegisterCaller();
        }
    }

    /**
     * Get rewarder at index
     * @param period - period id
     * @param pool - pool address
     * @param index - index
     */
    function getBribeRewarderAt(
        uint256 period,
        address pool,
        uint256 index
    ) external view override returns (IBribeRewarder) {
        return _bribesPerPriod[period][pool][index];
    }

    /**
     * Returns rewarders length
     * @param period - voting period id
     * @param pool - pool address
     */
    function getBribeRewarderLength(
        uint256 period,
        address pool
    ) external view override returns (uint256) {
        return _bribesPerPriod[period][pool].length;
    }

    /**
     * Get start and endtime for period
     * @param periodId - periodId
     * @return startTime - periodStartTime
     * @return endTime - period endTime
     */
    function getPeriodStartEndtime(
        uint256 periodId
    ) external view override returns (uint256, uint256) {
        return (_startTimes[periodId].startTime, _startTimes[periodId].endTime);
    }

    /**
     * @dev returns the latest ended period, either the period before the current period
     * or the current period if its ended. Reverts if no period is finished so far
     */
    function getLatestFinishedPeriod()
        external
        view
        override
        returns (uint256)
    {
        // the current period ended and no new period exists
        if (_votingEnded()) {
            return _currentVotingPeriodId;
        }
        if (_currentVotingPeriodId == 0) revert IVoter__NoFinishedPeriod();
        return _currentVotingPeriodId - 1;
    }

    /**
     * Get duration of voting epoch
     */
    function getPeriodDuration() external view returns (uint256) {
        return _periodDuration;
    }

    /**
     * Get minimum time which a position needs be locked for voting
     */
    function getMinimumLockTime() external view returns (uint256) {
        return _minimumLockTime;
    }

    /**
     * mininmum votes per pool
     */
    function getMinimumVotesPerPool() external view returns (uint256) {
        return _minimumVotesPerPool;
    }

    /**
     * @dev update duration of voding period
     * @param duration - duration in seconds
     */
    function updatePeriodDuration(uint256 duration) external onlyOwner {
        if (duration == 0) revert IVoter_ZeroValue();
        _periodDuration = duration;
        emit VotingDurationUpdated(duration);
    }

    /**
     * @dev update minimum time a position needs to be locked
     * @param lockTime - locktime in seconds
     */
    function updateMinimumLockTime(uint256 lockTime) external onlyOwner {
        if (lockTime == 0) revert IVoter_ZeroValue();
        _minimumLockTime = lockTime;
        emit MinimumLockTimeUpdated(lockTime);
    }

    /**
     * @dev update votes per pool
     * @param votesPerPool - minimum votes per pool got counted into farms
     */
    function updateMinimumVotesPerPool(
        uint256 votesPerPool
    ) external onlyOwner {
        // no check needed
        _minimumVotesPerPool = votesPerPool;
        emit MinimumVotesPerPoolUpdated(votesPerPool);
    }

    /**
     * @dev Updates the operator.
     * @param operator The new operator.
     */
    function updateOperator(address operator) external onlyOwner {
        _operator = operator;
        emit OperatorUpdated(operator);
    }

    /**
     * @dev Adds an elevated rewarder. Elevated rewarders are allowed to bribe beyond the bribe limit per pool and epoch.
     * @param rewarder - rewarder address
     */
    function addElevatedRewarder(address rewarder) external onlyOwner {
        _elevatedRewarders[rewarder] = true;
        emit ElevatedRewarderAdded(address(rewarder));
    }

    /**
     * @dev Removes an elevated rewarder.
     * @param rewarder - rewarder address
     */
    function removeElevatedRewarder(address rewarder) external onlyOwner {
        delete _elevatedRewarders[rewarder];
        emit ElevatedRewarderRemoved(address(rewarder));
    }
}

File 2 of 27 : SafeERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";
import {IERC20Permit} from "../extensions/IERC20Permit.sol";
import {Address} from "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    /**
     * @dev An operation with an ERC20 token failed.
     */
    error SafeERC20FailedOperation(address token);

    /**
     * @dev Indicates a failed `decreaseAllowance` request.
     */
    error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value)));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transferFrom, (from, to, value)));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        forceApprove(token, spender, oldAllowance + value);
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no
     * value, non-reverting calls are assumed to be successful.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {
        unchecked {
            uint256 currentAllowance = token.allowance(address(this), spender);
            if (currentAllowance < requestedDecrease) {
                revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);
            }
            forceApprove(token, spender, currentAllowance - requestedDecrease);
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value));

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0)));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data);
        if (returndata.length != 0 && !abi.decode(returndata, (bool))) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

        (bool success, bytes memory returndata) = address(token).call(data);
        return success && (returndata.length == 0 || abi.decode(returndata, (bool))) && address(token).code.length > 0;
    }
}

File 3 of 27 : Ownable2StepUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable2Step.sol)

pragma solidity ^0.8.20;

import {OwnableUpgradeable} from "./OwnableUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module which provides access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * The initial owner is specified at deployment time in the constructor for `Ownable`. This
 * can later be changed with {transferOwnership} and {acceptOwnership}.
 *
 * This module is used through inheritance. It will make available all functions
 * from parent (Ownable).
 */
abstract contract Ownable2StepUpgradeable is Initializable, OwnableUpgradeable {
    /// @custom:storage-location erc7201:openzeppelin.storage.Ownable2Step
    struct Ownable2StepStorage {
        address _pendingOwner;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Ownable2Step")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant Ownable2StepStorageLocation = 0x237e158222e3e6968b72b9db0d8043aacf074ad9f650f0d1606b4d82ee432c00;

    function _getOwnable2StepStorage() private pure returns (Ownable2StepStorage storage $) {
        assembly {
            $.slot := Ownable2StepStorageLocation
        }
    }

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

    function __Ownable2Step_init() internal onlyInitializing {
    }

    function __Ownable2Step_init_unchained() internal onlyInitializing {
    }
    /**
     * @dev Returns the address of the pending owner.
     */
    function pendingOwner() public view virtual returns (address) {
        Ownable2StepStorage storage $ = _getOwnable2StepStorage();
        return $._pendingOwner;
    }

    /**
     * @dev Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one.
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual override onlyOwner {
        Ownable2StepStorage storage $ = _getOwnable2StepStorage();
        $._pendingOwner = newOwner;
        emit OwnershipTransferStarted(owner(), newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`) and deletes any pending owner.
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual override {
        Ownable2StepStorage storage $ = _getOwnable2StepStorage();
        delete $._pendingOwner;
        super._transferOwnership(newOwner);
    }

    /**
     * @dev The new owner accepts the ownership transfer.
     */
    function acceptOwnership() public virtual {
        address sender = _msgSender();
        if (pendingOwner() != sender) {
            revert OwnableUnauthorizedAccount(sender);
        }
        _transferOwnership(sender);
    }
}

File 4 of 27 : EnumerableSet.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/structs/EnumerableSet.sol)
// This file was procedurally generated from scripts/generate/templates/EnumerableSet.js.

pragma solidity ^0.8.20;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```solidity
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
 * and `uint256` (`UintSet`) are supported.
 *
 * [WARNING]
 * ====
 * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure
 * unusable.
 * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info.
 *
 * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an
 * array of EnumerableSet.
 * ====
 */
library EnumerableSet {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.

    struct Set {
        // Storage of set values
        bytes32[] _values;
        // Position is the index of the value in the `values` array plus 1.
        // Position 0 is used to mean a value is not in the set.
        mapping(bytes32 value => uint256) _positions;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function _add(Set storage set, bytes32 value) private returns (bool) {
        if (!_contains(set, value)) {
            set._values.push(value);
            // The value is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            set._positions[value] = set._values.length;
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function _remove(Set storage set, bytes32 value) private returns (bool) {
        // We cache the value's position to prevent multiple reads from the same storage slot
        uint256 position = set._positions[value];

        if (position != 0) {
            // Equivalent to contains(set, value)
            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
            // the array, and then remove the last element (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.

            uint256 valueIndex = position - 1;
            uint256 lastIndex = set._values.length - 1;

            if (valueIndex != lastIndex) {
                bytes32 lastValue = set._values[lastIndex];

                // Move the lastValue to the index where the value to delete is
                set._values[valueIndex] = lastValue;
                // Update the tracked position of the lastValue (that was just moved)
                set._positions[lastValue] = position;
            }

            // Delete the slot where the moved value was stored
            set._values.pop();

            // Delete the tracked position for the deleted slot
            delete set._positions[value];

            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function _contains(Set storage set, bytes32 value) private view returns (bool) {
        return set._positions[value] != 0;
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function _length(Set storage set) private view returns (uint256) {
        return set._values.length;
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function _at(Set storage set, uint256 index) private view returns (bytes32) {
        return set._values[index];
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function _values(Set storage set) private view returns (bytes32[] memory) {
        return set._values;
    }

    // Bytes32Set

    struct Bytes32Set {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _add(set._inner, value);
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _remove(set._inner, value);
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
        return _contains(set._inner, value);
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(Bytes32Set storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
        return _at(set._inner, index);
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
        bytes32[] memory store = _values(set._inner);
        bytes32[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(AddressSet storage set, address value) internal returns (bool) {
        return _add(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(AddressSet storage set, address value) internal returns (bool) {
        return _remove(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(AddressSet storage set, address value) internal view returns (bool) {
        return _contains(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(AddressSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(AddressSet storage set, uint256 index) internal view returns (address) {
        return address(uint160(uint256(_at(set._inner, index))));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(AddressSet storage set) internal view returns (address[] memory) {
        bytes32[] memory store = _values(set._inner);
        address[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }

    // UintSet

    struct UintSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(UintSet storage set, uint256 value) internal returns (bool) {
        return _add(set._inner, bytes32(value));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(UintSet storage set, uint256 value) internal returns (bool) {
        return _remove(set._inner, bytes32(value));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(UintSet storage set, uint256 value) internal view returns (bool) {
        return _contains(set._inner, bytes32(value));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(UintSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(UintSet storage set, uint256 index) internal view returns (uint256) {
        return uint256(_at(set._inner, index));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(UintSet storage set) internal view returns (uint256[] memory) {
        bytes32[] memory store = _values(set._inner);
        uint256[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }
}

File 5 of 27 : EnumerableMap.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/structs/EnumerableMap.sol)
// This file was procedurally generated from scripts/generate/templates/EnumerableMap.js.

pragma solidity ^0.8.20;

import {EnumerableSet} from "./EnumerableSet.sol";

/**
 * @dev Library for managing an enumerable variant of Solidity's
 * https://solidity.readthedocs.io/en/latest/types.html#mapping-types[`mapping`]
 * type.
 *
 * Maps have the following properties:
 *
 * - Entries are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Entries are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```solidity
 * contract Example {
 *     // Add the library methods
 *     using EnumerableMap for EnumerableMap.UintToAddressMap;
 *
 *     // Declare a set state variable
 *     EnumerableMap.UintToAddressMap private myMap;
 * }
 * ```
 *
 * The following map types are supported:
 *
 * - `uint256 -> address` (`UintToAddressMap`) since v3.0.0
 * - `address -> uint256` (`AddressToUintMap`) since v4.6.0
 * - `bytes32 -> bytes32` (`Bytes32ToBytes32Map`) since v4.6.0
 * - `uint256 -> uint256` (`UintToUintMap`) since v4.7.0
 * - `bytes32 -> uint256` (`Bytes32ToUintMap`) since v4.7.0
 *
 * [WARNING]
 * ====
 * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure
 * unusable.
 * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info.
 *
 * In order to clean an EnumerableMap, you can either remove all elements one by one or create a fresh instance using an
 * array of EnumerableMap.
 * ====
 */
library EnumerableMap {
    using EnumerableSet for EnumerableSet.Bytes32Set;

    // To implement this library for multiple types with as little code repetition as possible, we write it in
    // terms of a generic Map type with bytes32 keys and values. The Map implementation uses private functions,
    // and user-facing implementations such as `UintToAddressMap` are just wrappers around the underlying Map.
    // This means that we can only create new EnumerableMaps for types that fit in bytes32.

    /**
     * @dev Query for a nonexistent map key.
     */
    error EnumerableMapNonexistentKey(bytes32 key);

    struct Bytes32ToBytes32Map {
        // Storage of keys
        EnumerableSet.Bytes32Set _keys;
        mapping(bytes32 key => bytes32) _values;
    }

    /**
     * @dev Adds a key-value pair to a map, or updates the value for an existing
     * key. O(1).
     *
     * Returns true if the key was added to the map, that is if it was not
     * already present.
     */
    function set(Bytes32ToBytes32Map storage map, bytes32 key, bytes32 value) internal returns (bool) {
        map._values[key] = value;
        return map._keys.add(key);
    }

    /**
     * @dev Removes a key-value pair from a map. O(1).
     *
     * Returns true if the key was removed from the map, that is if it was present.
     */
    function remove(Bytes32ToBytes32Map storage map, bytes32 key) internal returns (bool) {
        delete map._values[key];
        return map._keys.remove(key);
    }

    /**
     * @dev Returns true if the key is in the map. O(1).
     */
    function contains(Bytes32ToBytes32Map storage map, bytes32 key) internal view returns (bool) {
        return map._keys.contains(key);
    }

    /**
     * @dev Returns the number of key-value pairs in the map. O(1).
     */
    function length(Bytes32ToBytes32Map storage map) internal view returns (uint256) {
        return map._keys.length();
    }

    /**
     * @dev Returns the key-value pair stored at position `index` in the map. O(1).
     *
     * Note that there are no guarantees on the ordering of entries inside the
     * array, and it may change when more entries are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(Bytes32ToBytes32Map storage map, uint256 index) internal view returns (bytes32, bytes32) {
        bytes32 key = map._keys.at(index);
        return (key, map._values[key]);
    }

    /**
     * @dev Tries to returns the value associated with `key`. O(1).
     * Does not revert if `key` is not in the map.
     */
    function tryGet(Bytes32ToBytes32Map storage map, bytes32 key) internal view returns (bool, bytes32) {
        bytes32 value = map._values[key];
        if (value == bytes32(0)) {
            return (contains(map, key), bytes32(0));
        } else {
            return (true, value);
        }
    }

    /**
     * @dev Returns the value associated with `key`. O(1).
     *
     * Requirements:
     *
     * - `key` must be in the map.
     */
    function get(Bytes32ToBytes32Map storage map, bytes32 key) internal view returns (bytes32) {
        bytes32 value = map._values[key];
        if (value == 0 && !contains(map, key)) {
            revert EnumerableMapNonexistentKey(key);
        }
        return value;
    }

    /**
     * @dev Return the an array containing all the keys
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the map grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function keys(Bytes32ToBytes32Map storage map) internal view returns (bytes32[] memory) {
        return map._keys.values();
    }

    // UintToUintMap

    struct UintToUintMap {
        Bytes32ToBytes32Map _inner;
    }

    /**
     * @dev Adds a key-value pair to a map, or updates the value for an existing
     * key. O(1).
     *
     * Returns true if the key was added to the map, that is if it was not
     * already present.
     */
    function set(UintToUintMap storage map, uint256 key, uint256 value) internal returns (bool) {
        return set(map._inner, bytes32(key), bytes32(value));
    }

    /**
     * @dev Removes a value from a map. O(1).
     *
     * Returns true if the key was removed from the map, that is if it was present.
     */
    function remove(UintToUintMap storage map, uint256 key) internal returns (bool) {
        return remove(map._inner, bytes32(key));
    }

    /**
     * @dev Returns true if the key is in the map. O(1).
     */
    function contains(UintToUintMap storage map, uint256 key) internal view returns (bool) {
        return contains(map._inner, bytes32(key));
    }

    /**
     * @dev Returns the number of elements in the map. O(1).
     */
    function length(UintToUintMap storage map) internal view returns (uint256) {
        return length(map._inner);
    }

    /**
     * @dev Returns the element stored at position `index` in the map. O(1).
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(UintToUintMap storage map, uint256 index) internal view returns (uint256, uint256) {
        (bytes32 key, bytes32 value) = at(map._inner, index);
        return (uint256(key), uint256(value));
    }

    /**
     * @dev Tries to returns the value associated with `key`. O(1).
     * Does not revert if `key` is not in the map.
     */
    function tryGet(UintToUintMap storage map, uint256 key) internal view returns (bool, uint256) {
        (bool success, bytes32 value) = tryGet(map._inner, bytes32(key));
        return (success, uint256(value));
    }

    /**
     * @dev Returns the value associated with `key`. O(1).
     *
     * Requirements:
     *
     * - `key` must be in the map.
     */
    function get(UintToUintMap storage map, uint256 key) internal view returns (uint256) {
        return uint256(get(map._inner, bytes32(key)));
    }

    /**
     * @dev Return the an array containing all the keys
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the map grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function keys(UintToUintMap storage map) internal view returns (uint256[] memory) {
        bytes32[] memory store = keys(map._inner);
        uint256[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }

    // UintToAddressMap

    struct UintToAddressMap {
        Bytes32ToBytes32Map _inner;
    }

    /**
     * @dev Adds a key-value pair to a map, or updates the value for an existing
     * key. O(1).
     *
     * Returns true if the key was added to the map, that is if it was not
     * already present.
     */
    function set(UintToAddressMap storage map, uint256 key, address value) internal returns (bool) {
        return set(map._inner, bytes32(key), bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Removes a value from a map. O(1).
     *
     * Returns true if the key was removed from the map, that is if it was present.
     */
    function remove(UintToAddressMap storage map, uint256 key) internal returns (bool) {
        return remove(map._inner, bytes32(key));
    }

    /**
     * @dev Returns true if the key is in the map. O(1).
     */
    function contains(UintToAddressMap storage map, uint256 key) internal view returns (bool) {
        return contains(map._inner, bytes32(key));
    }

    /**
     * @dev Returns the number of elements in the map. O(1).
     */
    function length(UintToAddressMap storage map) internal view returns (uint256) {
        return length(map._inner);
    }

    /**
     * @dev Returns the element stored at position `index` in the map. O(1).
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(UintToAddressMap storage map, uint256 index) internal view returns (uint256, address) {
        (bytes32 key, bytes32 value) = at(map._inner, index);
        return (uint256(key), address(uint160(uint256(value))));
    }

    /**
     * @dev Tries to returns the value associated with `key`. O(1).
     * Does not revert if `key` is not in the map.
     */
    function tryGet(UintToAddressMap storage map, uint256 key) internal view returns (bool, address) {
        (bool success, bytes32 value) = tryGet(map._inner, bytes32(key));
        return (success, address(uint160(uint256(value))));
    }

    /**
     * @dev Returns the value associated with `key`. O(1).
     *
     * Requirements:
     *
     * - `key` must be in the map.
     */
    function get(UintToAddressMap storage map, uint256 key) internal view returns (address) {
        return address(uint160(uint256(get(map._inner, bytes32(key)))));
    }

    /**
     * @dev Return the an array containing all the keys
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the map grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function keys(UintToAddressMap storage map) internal view returns (uint256[] memory) {
        bytes32[] memory store = keys(map._inner);
        uint256[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }

    // AddressToUintMap

    struct AddressToUintMap {
        Bytes32ToBytes32Map _inner;
    }

    /**
     * @dev Adds a key-value pair to a map, or updates the value for an existing
     * key. O(1).
     *
     * Returns true if the key was added to the map, that is if it was not
     * already present.
     */
    function set(AddressToUintMap storage map, address key, uint256 value) internal returns (bool) {
        return set(map._inner, bytes32(uint256(uint160(key))), bytes32(value));
    }

    /**
     * @dev Removes a value from a map. O(1).
     *
     * Returns true if the key was removed from the map, that is if it was present.
     */
    function remove(AddressToUintMap storage map, address key) internal returns (bool) {
        return remove(map._inner, bytes32(uint256(uint160(key))));
    }

    /**
     * @dev Returns true if the key is in the map. O(1).
     */
    function contains(AddressToUintMap storage map, address key) internal view returns (bool) {
        return contains(map._inner, bytes32(uint256(uint160(key))));
    }

    /**
     * @dev Returns the number of elements in the map. O(1).
     */
    function length(AddressToUintMap storage map) internal view returns (uint256) {
        return length(map._inner);
    }

    /**
     * @dev Returns the element stored at position `index` in the map. O(1).
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(AddressToUintMap storage map, uint256 index) internal view returns (address, uint256) {
        (bytes32 key, bytes32 value) = at(map._inner, index);
        return (address(uint160(uint256(key))), uint256(value));
    }

    /**
     * @dev Tries to returns the value associated with `key`. O(1).
     * Does not revert if `key` is not in the map.
     */
    function tryGet(AddressToUintMap storage map, address key) internal view returns (bool, uint256) {
        (bool success, bytes32 value) = tryGet(map._inner, bytes32(uint256(uint160(key))));
        return (success, uint256(value));
    }

    /**
     * @dev Returns the value associated with `key`. O(1).
     *
     * Requirements:
     *
     * - `key` must be in the map.
     */
    function get(AddressToUintMap storage map, address key) internal view returns (uint256) {
        return uint256(get(map._inner, bytes32(uint256(uint160(key)))));
    }

    /**
     * @dev Return the an array containing all the keys
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the map grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function keys(AddressToUintMap storage map) internal view returns (address[] memory) {
        bytes32[] memory store = keys(map._inner);
        address[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }

    // Bytes32ToUintMap

    struct Bytes32ToUintMap {
        Bytes32ToBytes32Map _inner;
    }

    /**
     * @dev Adds a key-value pair to a map, or updates the value for an existing
     * key. O(1).
     *
     * Returns true if the key was added to the map, that is if it was not
     * already present.
     */
    function set(Bytes32ToUintMap storage map, bytes32 key, uint256 value) internal returns (bool) {
        return set(map._inner, key, bytes32(value));
    }

    /**
     * @dev Removes a value from a map. O(1).
     *
     * Returns true if the key was removed from the map, that is if it was present.
     */
    function remove(Bytes32ToUintMap storage map, bytes32 key) internal returns (bool) {
        return remove(map._inner, key);
    }

    /**
     * @dev Returns true if the key is in the map. O(1).
     */
    function contains(Bytes32ToUintMap storage map, bytes32 key) internal view returns (bool) {
        return contains(map._inner, key);
    }

    /**
     * @dev Returns the number of elements in the map. O(1).
     */
    function length(Bytes32ToUintMap storage map) internal view returns (uint256) {
        return length(map._inner);
    }

    /**
     * @dev Returns the element stored at position `index` in the map. O(1).
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(Bytes32ToUintMap storage map, uint256 index) internal view returns (bytes32, uint256) {
        (bytes32 key, bytes32 value) = at(map._inner, index);
        return (key, uint256(value));
    }

    /**
     * @dev Tries to returns the value associated with `key`. O(1).
     * Does not revert if `key` is not in the map.
     */
    function tryGet(Bytes32ToUintMap storage map, bytes32 key) internal view returns (bool, uint256) {
        (bool success, bytes32 value) = tryGet(map._inner, key);
        return (success, uint256(value));
    }

    /**
     * @dev Returns the value associated with `key`. O(1).
     *
     * Requirements:
     *
     * - `key` must be in the map.
     */
    function get(Bytes32ToUintMap storage map, bytes32 key) internal view returns (uint256) {
        return uint256(get(map._inner, key));
    }

    /**
     * @dev Return the an array containing all the keys
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the map grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function keys(Bytes32ToUintMap storage map) internal view returns (bytes32[] memory) {
        bytes32[] memory store = keys(map._inner);
        bytes32[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }
}

File 6 of 27 : IMetroStaking.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import "openzeppelin/token/ERC20/IERC20.sol";
import "openzeppelin/token/ERC721/IERC721.sol";

interface IMetroStaking is IERC721 {
    // Info of each NFT (staked position).
    struct StakingPosition {
        uint256 amount; // How many lp tokens the user has provided
        uint256 amountWithMultiplier; // Amount + lock bonus faked amount (amount + amount*multiplier)
        uint256 startLockTime; // The time at which the user made his deposit
        uint256 initialLockDuration; // lock duration on creation
        uint256 lockDuration; // The lock duration in seconds
        uint256 lockMultiplier; // Active lock multiplier (times 1e2)
        uint256 rewardDebt; // Reward debt
        uint256 totalMultiplier; // lockMultiplier
    }

    error IMetroStaking_TooMuchTokenDecimals();
    error IMetroStaking_ZeroAddress();
    error IMetroStaking_NotOwner();
    error IMetroStaking_MaxLockMultiplierTooHigh();
    error IMetroStaking_LocksDisabled();
    error IMetroStaking_ZeroAmount();
    error IMetroStaking_PositionStillLocked();
    error IMetroStaking_InvalidLockDuration();
    error IMetroStaking_TransferNotAllowed();
    error IMetroStaking_AmountTooHigh();
    error IMetroStaking_SameAddress();

    // Events

    event AddToPosition(uint256 indexed tokenId, address user, uint256 amount);
    event CreatePosition(uint256 indexed tokenId, uint256 amount, uint256 lockDuration);
    event WithdrawFromPosition(uint256 indexed tokenId, uint256 amount);
    event EmergencyWithdraw(uint256 indexed tokenId, uint256 amount);
    event LockPosition(uint256 indexed tokenId, uint256 lockDuration);
    event HarvestPosition(uint256 indexed tokenId, address to, uint256 pending);
    event PoolUpdated(uint256 lastRewardTime, uint256 accRewardsPerShare);
    event SetLockMultiplierSettings(uint256 maxLockDuration, uint256 maxLockMultiplier);
    event SetBoostMultiplierSettings(uint256 maxGlobalMultiplier, uint256 maxBoostMultiplier);
    event SetEmergencyUnlock(bool emergencyUnlock);
    event SetMinimumLockDuration(uint256 minimumLockDuration);

    function exists(uint256 tokenId) external view returns (bool);

    function getStakedToken() external view returns (IERC20);

    function getRewardToken() external view returns (IERC20);

    function getMultiplierSettings() external view returns (uint256, uint256, uint256);

    function getLastRewardBalance() external view returns (uint256);

    function lastTokenId() external view returns (uint256);

    function getStakedSupply() external view returns (uint256);

    function isUnlocked() external view returns (bool);

    function getStakedSupplyWithMultiplier() external view returns (uint256);

    function hasDeposits() external view returns (bool);

    function getStakingPosition(uint256 tokenId) external view returns (StakingPosition memory position);

    function pendingRewards(uint256 tokenId) external view returns (uint256);

    function createPosition(uint256 amount, uint256 lockDuration) external;

    function addToPosition(uint256 tokenId, uint256 amountToAdd) external;

    function harvestPosition(uint256 tokenId) external;

    function harvestPositions(uint256[] calldata tokenIds) external;

    function withdrawFromPosition(uint256 tokenId, uint256 amountToWithdraw) external;

    function emergencyWithdraw(uint256 tokenId) external;

    function setMinimumLockDuration(uint256 minimumLockDuration) external;
}

File 7 of 27 : IBribeRewarder.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {IERC20} from "openzeppelin/token/ERC20/IERC20.sol";

import {IRewarder} from "./IRewarder.sol";

interface IBribeRewarder is IRewarder {
    error BribeRewarder__OnlyVoter();
    error BribeRewarder__InsufficientFunds();
    error BribeRewarder__WrongStartId();
    error BribeRewarder__WrongEndId();
    error BribeRewarder__ZeroReward();
    error BribeRewarder__NativeTransferFailed();
    error BribeRewarder__NotOwner();
    error BribeRewarder__CannotRenounceOwnership();
    error BribeRewarder__NotNativeRewarder();
    error BribeRewarder__AlreadyInitialized();
    error BribeRewarder__PeriodNotFound();
    error BribeRewarder__AmountTooLow();
    error BribeRewarder__OnlyVoterAdmin();

    event Claimed(address indexed account, address indexed pool, uint256 amount);
    event Deposited(uint256 indexed periodId, address indexed account, address indexed pool, uint256 amount);
    event BribeInit(uint256 indexed startId, uint256 indexed lastId, uint256 amountPerPeriod);
    event Swept(IERC20 indexed token, address indexed account, uint256 amount);

    function bribe(uint256 startId, uint256 lastId, uint256 amountPerPeriod) external;

    function claim(address account) external;

    function deposit(uint256 periodId, address account, uint256 deltaAmount) external;

    function getPool() external view returns (address);

    function getPendingReward(address account) external view returns (uint256);

    function getBribePeriods() external view returns (address pool, uint256[] memory);

    function getStartVotingPeriodId() external view returns (uint256);

    function getLastVotingPeriodId() external view returns (uint256);

    function getAmountPerPeriod() external view returns (uint256);

    function sweep(IERC20 token, address account) external;
}

File 8 of 27 : IRewarderFactory.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {IERC20} from "openzeppelin/token/ERC20/IERC20.sol";

import {IRewarder} from "../interfaces/IRewarder.sol";
import {IBribeRewarder} from "../interfaces/IBribeRewarder.sol";
import {IBaseRewarder} from "../interfaces/IBaseRewarder.sol";

interface IRewarderFactory {
    error RewarderFactory__ZeroAddress();
    error RewarderFactory__InvalidRewarderType();
    error RewarderFactory__InvalidPid();
    error RewarderFactory__TokenNotWhitelisted();
    error RewarderFactory__InvalidLength();

    enum RewarderType {
        InvalidRewarder,
        MasterChefRewarder,
        BribeRewarder
    }

    event RewarderCreated(
        RewarderType indexed rewarderType, IERC20 indexed token, uint256 indexed pid, IBaseRewarder rewarder
    );

    event BribeRewarderCreated(
        RewarderType indexed rewarderType, IERC20 indexed token, address indexed pool, IBribeRewarder rewarder
    );

    event RewarderImplementationSet(RewarderType indexed rewarderType, IRewarder indexed implementation);

    function getBribeCreatorFee() external view returns (uint256);

    function getWhitelistedTokenInfo (address token) external view returns (bool, uint256);

    function getRewarderImplementation(RewarderType rewarderType) external view returns (IRewarder);

    function getRewarderCount(RewarderType rewarderType) external view returns (uint256);

    function getRewarderAt(RewarderType rewarderType, uint256 index) external view returns (IRewarder);

    function getRewarderType(IRewarder rewarder) external view returns (RewarderType);

    function setRewarderImplementation(RewarderType rewarderType, IRewarder implementation) external;

    function createRewarder(RewarderType rewarderType, IERC20 token, uint256 pid) external returns (IBaseRewarder);

    function createBribeRewarder(IERC20 token, address pool) external returns (IBribeRewarder);

    function setWhitelist(address[] calldata tokens, uint256[] calldata minBribeAmounts) external;
}

File 9 of 27 : IMasterChef.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {IERC20} from "openzeppelin/token/ERC20/IERC20.sol";

import {IMasterChefRewarder} from "./IMasterChefRewarder.sol";
import {IMetro} from "./IMetro.sol";
import {IVoter} from "./IVoter.sol";
import {Rewarder} from "../libraries/Rewarder.sol";
import {Amounts} from "../libraries/Amounts.sol";
import {IRewarderFactory} from "./IRewarderFactory.sol";

interface IMasterChef {
    error MasterChef__InvalidShares();
    error MasterChef__InvalidMetroPerSecond();
    error MasterChef__ZeroAddress();
    error MasterChef__NotMasterchefRewarder();
    error MasterChef__CannotRenounceOwnership();
    error MasterChef__MintFailed();
    error MasterChef__TrusteeNotSet();
    error MasterChef__NotTrustedCaller();

    struct Farm {
        Amounts.Parameter amounts;
        Rewarder.Parameter rewarder;
        IERC20 token;
        IMasterChefRewarder extraRewarder;
    }
    // bool depositOnBehalf; // true if v2 pool zap in should be possible
    // uint256 startTime;

    event PositionModified(uint256 indexed pid, address indexed account, int256 deltaAmount, uint256 metroReward);

    event MetroPerSecondSet(uint256 metroPerSecond);

    event FarmAdded(uint256 indexed pid, IERC20 indexed token);

    event ExtraRewarderSet(uint256 indexed pid, IMasterChefRewarder extraRewarder);

    event TreasurySet(address indexed treasury);

    event VoterSet(IVoter indexed newVoter);

    event TrusteeSet(address indexed trustee);

    event MintMetroSet(bool mintMetro);

    event OperatorUpdated(address indexed operator);

    function add(IERC20 token, IMasterChefRewarder extraRewarder) external;

    function claim(uint256[] memory pids) external;

    function deposit(uint256 pid, uint256 amount) external;

    function depositOnBehalf(uint256 pid, uint256 amount, address account) external;

    function emergencyWithdraw(uint256 pid) external;

    function getDeposit(uint256 pid, address account) external view returns (uint256);

    function getLastUpdateTimestamp(uint256 pid) external view returns (uint256);

    function getPendingRewards(address account, uint256[] memory pids)
        external
        view
        returns (uint256[] memory metroRewards, IERC20[] memory extraTokens, uint256[] memory extraRewards);

    function getExtraRewarder(uint256 pid) external view returns (IMasterChefRewarder);

    function getMetro() external view returns (IMetro);

    function getMetroPerSecond() external view returns (uint256);

    function getMetroPerSecondForPid(uint256 pid) external view returns (uint256);

    function getNumberOfFarms() external view returns (uint256);

    function getToken(uint256 pid) external view returns (IERC20);

    function getTotalDeposit(uint256 pid) external view returns (uint256);

    function getTreasury() external view returns (address);

    function getTreasuryShare() external view returns (uint256);

    function getRewarderFactory() external view returns (IRewarderFactory);

    function getLBHooksManager() external view returns (address);

    function getVoter() external view returns (IVoter);

    function setExtraRewarder(uint256 pid, IMasterChefRewarder extraRewarder) external;

    function setMetroPerSecond(uint96 metroPerSecond) external;

    function setTreasury(address treasury) external;

    function setVoter(IVoter voter) external;

    function setTrustee(address trustee) external;

    function updateAll(uint256[] calldata pids) external;

    function withdraw(uint256 pid, uint256 amount) external;
}

File 10 of 27 : IVoterPoolValidator.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

interface IVoterPoolValidator {
    function isValid(address pool) external view returns (bool);
}

File 11 of 27 : IVoter.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import {IBribeRewarder} from "./IBribeRewarder.sol";
import {IMasterChef} from "./IMasterChef.sol";

interface IVoter {
    error IVoter__InvalidLength();
    error IVoter_VotingPeriodNotStarted();
    error IVoter_VotingPeriodEnded();
    error IVoter__AlreadyVoted();
    error IVoter__NotOwner();
    error IVoter__InsufficientVotingPower();
    error IVoter__TooManyPoolIds();
    error IVoter__DuplicatePoolId(uint256 pid);
    error IVoter__InsufficientLockTime();
    error Voter__InvalidRegisterCaller();
    error Voter__PoolNotVotable();
    error IVoter__NoFinishedPeriod();
    error IVoter_ZeroValue();
    error IVoter__EmergencyUnlock();

    event VotingPeriodStarted();
    event Voted(uint256 indexed tokenId, uint256 votingPeriod, address[] votedPools, uint256[] votesDeltaAmounts);
    event TopPoolIdsWithWeightsSet(uint256[] poolIds, uint256[] pidWeights);
    event VoterPoolValidatorUpdated(address indexed validator);
    event VotingDurationUpdated(uint256 duration);
    event MinimumLockTimeUpdated(uint256 lockTime);
    event MinimumVotesPerPoolUpdated(uint256 minimum);
    event OperatorUpdated(address indexed operator);
    event ElevatedRewarderAdded(address indexed rewarder);
    event ElevatedRewarderRemoved(address indexed rewarder);

    struct VotingPeriod {
        uint256 startTime;
        uint256 endTime;
    }

    function getMasterChef() external view returns (IMasterChef);

    function getTotalWeight() external view returns (uint256);

    function getTopPoolIds() external view returns (uint256[] memory);

    function getWeight(uint256 pid) external view returns (uint256);

    function hasVoted(uint256 period, uint256 tokenId) external view returns (bool);

    function getCurrentVotingPeriod() external view returns (uint256);

    function getLatestFinishedPeriod() external view returns (uint256);

    function getPeriodStartTime() external view returns (uint256);

    function getPeriodStartEndtime(uint256 periodId) external view returns (uint256, uint256);

    function getVotesPerPeriod(uint256 periodId, address pool) external view returns (uint256);

    function getVotedPools() external view returns (address[] memory);

    function getVotedPoolsLength() external view returns (uint256);

    function getVotedPoolsAtIndex(uint256 index) external view returns (address, uint256);

    function getTotalVotes() external view returns (uint256);

    function getUserVotes(uint256 tokenId, address pool) external view returns (uint256);

    function getPoolVotesPerPeriod(uint256 periodId, address pool) external view returns (uint256);

    function getUserBribeRewaderAt(uint256 period, address account, uint256 index)
        external
        view
        returns (IBribeRewarder);

    function getUserBribeRewarderLength(uint256 period, address account) external view returns (uint256);

    function getBribeRewarderAt(uint256 period, address pool, uint256 index) external view returns (IBribeRewarder);

    function getBribeRewarderLength(uint256 period, address pool) external view returns (uint256);

    function ownerOf(uint256 tokenId, address account) external view returns (bool);

    function onRegister() external;
}

File 12 of 27 : Amounts.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import {Math} from "./Math.sol";

/**
 * @title Amounts Library
 * @dev A library that defines various functions for manipulating amounts of a key and a total.
 * The key can be bytes32, address, or uint256.
 */
library Amounts {
    using Math for uint256;

    struct Parameter {
        uint256 totalAmount;
        mapping(bytes32 => uint256) amounts;
    }

    /**
     * @dev Returns the amount of a key.
     * @param amounts The storage pointer to the amounts.
     * @param key The key of the amount.
     * @return The amount of the key.
     */
    function getAmountOf(Parameter storage amounts, bytes32 key) internal view returns (uint256) {
        return amounts.amounts[key];
    }

    /**
     * @dev Returns the amount of an address.
     * @param amounts The storage pointer to the amounts.
     * @param account The address of the amount.
     * @return The amount of the address.
     */
    function getAmountOf(Parameter storage amounts, address account) internal view returns (uint256) {
        return getAmountOf(amounts, bytes32(uint256(uint160(account))));
    }

    /**
     * @dev Returns the amount of an id.
     * @param amounts The storage pointer to the amounts.
     * @param id The id of the amount.
     * @return The amount of the id.
     */
    function getAmountOf(Parameter storage amounts, uint256 id) internal view returns (uint256) {
        return getAmountOf(amounts, bytes32(id));
    }

    /**
     * @dev Returns the total amount.
     * @param amounts The storage pointer to the amounts.
     * @return The total amount.
     */
    function getTotalAmount(Parameter storage amounts) internal view returns (uint256) {
        return amounts.totalAmount;
    }

    /**
     * @dev Updates the amount of a key. The delta is added to the key amount and the total amount.
     * @param amounts The storage pointer to the amounts.
     * @param key The key of the amount.
     * @param deltaAmount The delta amount to update.
     * @return oldAmount The old amount of the key.
     * @return newAmount The new amount of the key.
     * @return oldTotalAmount The old total amount.
     * @return newTotalAmount The new total amount.
     */
    function update(Parameter storage amounts, bytes32 key, int256 deltaAmount)
        internal
        returns (uint256 oldAmount, uint256 newAmount, uint256 oldTotalAmount, uint256 newTotalAmount)
    {
        oldAmount = amounts.amounts[key];
        oldTotalAmount = amounts.totalAmount;

        if (deltaAmount == 0) {
            newAmount = oldAmount;
            newTotalAmount = oldTotalAmount;
        } else {
            newAmount = oldAmount.addDelta(deltaAmount);
            newTotalAmount = oldTotalAmount.addDelta(deltaAmount);

            amounts.amounts[key] = newAmount;
            amounts.totalAmount = newTotalAmount;
        }
    }

    /**
     * @dev Updates the amount of an address. The delta is added to the address amount and the total amount.
     * @param amounts The storage pointer to the amounts.
     * @param account The address of the amount.
     * @param deltaAmount The delta amount to update.
     * @return oldAmount The old amount of the key.
     * @return newAmount The new amount of the key.
     * @return oldTotalAmount The old total amount.
     * @return newTotalAmount The new total amount.
     */
    function update(Parameter storage amounts, address account, int256 deltaAmount)
        internal
        returns (uint256 oldAmount, uint256 newAmount, uint256 oldTotalAmount, uint256 newTotalAmount)
    {
        return update(amounts, bytes32(uint256(uint160(account))), deltaAmount);
    }

    /**
     * @dev Updates the amount of an id. The delta is added to the id amount and the total amount.
     * @param amounts The storage pointer to the amounts.
     * @param id The id of the amount.
     * @param deltaAmount The delta amount to update.
     * @return oldAmount The old amount of the key.
     * @return newAmount The new amount of the key.
     * @return oldTotalAmount The old total amount.
     * @return newTotalAmount The new total amount.
     */
    function update(Parameter storage amounts, uint256 id, int256 deltaAmount)
        internal
        returns (uint256 oldAmount, uint256 newAmount, uint256 oldTotalAmount, uint256 newTotalAmount)
    {
        return update(amounts, bytes32(id), deltaAmount);
    }
}

File 13 of 27 : Constants.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

/**
 * @title Constants Library
 * @dev A library that defines various constants used throughout the codebase.
 */
library Constants {
    uint256 internal constant ACC_PRECISION_BITS = 64;
    uint256 internal constant PRECISION = 1e18;

    uint256 internal constant MAX_NUMBER_OF_FARMS = 32;
    uint256 internal constant MAX_NUMBER_OF_REWARDS = 32;

    uint256 internal constant MAX_METRO_PER_SECOND = 10e18;

    uint256 internal constant MAX_BRIBES_PER_POOL = 5;
}

File 14 of 27 : IERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @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 value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

    /**
     * @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens 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 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` 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 value) external returns (bool);
}

File 15 of 27 : IERC20Permit.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 *
 * ==== Security Considerations
 *
 * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature
 * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be
 * considered as an intention to spend the allowance in any specific way. The second is that because permits have
 * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should
 * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be
 * generally recommended is:
 *
 * ```solidity
 * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
 *     try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
 *     doThing(..., value);
 * }
 *
 * function doThing(..., uint256 value) public {
 *     token.safeTransferFrom(msg.sender, address(this), value);
 *     ...
 * }
 * ```
 *
 * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of
 * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also
 * {SafeERC20-safeTransferFrom}).
 *
 * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so
 * contracts should have entry points that don't rely on permit.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     *
     * CAUTION: See Security Considerations above.
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

File 16 of 27 : Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol)

pragma solidity ^0.8.20;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev The ETH balance of the account is not enough to perform the operation.
     */
    error AddressInsufficientBalance(address account);

    /**
     * @dev There's no code at `target` (it is not a contract).
     */
    error AddressEmptyCode(address target);

    /**
     * @dev A call to an address target failed. The target may have reverted.
     */
    error FailedInnerCall();

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        if (address(this).balance < amount) {
            revert AddressInsufficientBalance(address(this));
        }

        (bool success, ) = recipient.call{value: amount}("");
        if (!success) {
            revert FailedInnerCall();
        }
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason or custom error, it is bubbled
     * up by this function (like regular Solidity function calls). However, if
     * the call reverted with no returned reason, this function reverts with a
     * {FailedInnerCall} error.
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        if (address(this).balance < value) {
            revert AddressInsufficientBalance(address(this));
        }
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target
     * was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an
     * unsuccessful call.
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata
    ) internal view returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            // only check if target is a contract if the call was successful and the return data is empty
            // otherwise we already know that it was a contract
            if (returndata.length == 0 && target.code.length == 0) {
                revert AddressEmptyCode(target);
            }
            return returndata;
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the
     * revert reason or with a default {FailedInnerCall} error.
     */
    function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            return returndata;
        }
    }

    /**
     * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}.
     */
    function _revert(bytes memory returndata) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert FailedInnerCall();
        }
    }
}

File 17 of 27 : OwnableUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.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.
 *
 * The initial owner is set to the address provided by the deployer. 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 OwnableUpgradeable is Initializable, ContextUpgradeable {
    /// @custom:storage-location erc7201:openzeppelin.storage.Ownable
    struct OwnableStorage {
        address _owner;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Ownable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant OwnableStorageLocation = 0x9016d09d72d40fdae2fd8ceac6b6234c7706214fd39c1cd1e609a0528c199300;

    function _getOwnableStorage() private pure returns (OwnableStorage storage $) {
        assembly {
            $.slot := OwnableStorageLocation
        }
    }

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

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

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    function __Ownable_init(address initialOwner) internal onlyInitializing {
        __Ownable_init_unchained(initialOwner);
    }

    function __Ownable_init_unchained(address initialOwner) internal onlyInitializing {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @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) {
        OwnableStorage storage $ = _getOwnableStorage();
        return $._owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @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 {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(newOwner);
    }

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

File 18 of 27 : Initializable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.20;

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```solidity
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 *
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Storage of the initializable contract.
     *
     * It's implemented on a custom ERC-7201 namespace to reduce the risk of storage collisions
     * when using with upgradeable contracts.
     *
     * @custom:storage-location erc7201:openzeppelin.storage.Initializable
     */
    struct InitializableStorage {
        /**
         * @dev Indicates that the contract has been initialized.
         */
        uint64 _initialized;
        /**
         * @dev Indicates that the contract is in the process of being initialized.
         */
        bool _initializing;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Initializable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant INITIALIZABLE_STORAGE = 0xf0c57e16840df040f15088dc2f81fe391c3923bec73e23a9662efc9c229c6a00;

    /**
     * @dev The contract is already initialized.
     */
    error InvalidInitialization();

    /**
     * @dev The contract is not initializing.
     */
    error NotInitializing();

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint64 version);

    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts.
     *
     * Similar to `reinitializer(1)`, except that in the context of a constructor an `initializer` may be invoked any
     * number of times. This behavior in the constructor can be useful during testing and is not expected to be used in
     * production.
     *
     * Emits an {Initialized} event.
     */
    modifier initializer() {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        // Cache values to avoid duplicated sloads
        bool isTopLevelCall = !$._initializing;
        uint64 initialized = $._initialized;

        // Allowed calls:
        // - initialSetup: the contract is not in the initializing state and no previous version was
        //                 initialized
        // - construction: the contract is initialized at version 1 (no reininitialization) and the
        //                 current contract is just being deployed
        bool initialSetup = initialized == 0 && isTopLevelCall;
        bool construction = initialized == 1 && address(this).code.length == 0;

        if (!initialSetup && !construction) {
            revert InvalidInitialization();
        }
        $._initialized = 1;
        if (isTopLevelCall) {
            $._initializing = true;
        }
        _;
        if (isTopLevelCall) {
            $._initializing = false;
            emit Initialized(1);
        }
    }

    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * A reinitializer may be used after the original initialization step. This is essential to configure modules that
     * are added through upgrades and that require initialization.
     *
     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
     * cannot be nested. If one is invoked in the context of another, execution will revert.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     *
     * WARNING: Setting the version to 2**64 - 1 will prevent any future reinitialization.
     *
     * Emits an {Initialized} event.
     */
    modifier reinitializer(uint64 version) {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing || $._initialized >= version) {
            revert InvalidInitialization();
        }
        $._initialized = version;
        $._initializing = true;
        _;
        $._initializing = false;
        emit Initialized(version);
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        _checkInitializing();
        _;
    }

    /**
     * @dev Reverts if the contract is not in an initializing state. See {onlyInitializing}.
     */
    function _checkInitializing() internal view virtual {
        if (!_isInitializing()) {
            revert NotInitializing();
        }
    }

    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     *
     * Emits an {Initialized} event the first time it is successfully executed.
     */
    function _disableInitializers() internal virtual {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing) {
            revert InvalidInitialization();
        }
        if ($._initialized != type(uint64).max) {
            $._initialized = type(uint64).max;
            emit Initialized(type(uint64).max);
        }
    }

    /**
     * @dev Returns the highest version that has been initialized. See {reinitializer}.
     */
    function _getInitializedVersion() internal view returns (uint64) {
        return _getInitializableStorage()._initialized;
    }

    /**
     * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
     */
    function _isInitializing() internal view returns (bool) {
        return _getInitializableStorage()._initializing;
    }

    /**
     * @dev Returns a pointer to the storage namespace.
     */
    // solhint-disable-next-line var-name-mixedcase
    function _getInitializableStorage() private pure returns (InitializableStorage storage $) {
        assembly {
            $.slot := INITIALIZABLE_STORAGE
        }
    }
}

File 19 of 27 : IERC721.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/IERC721.sol)

pragma solidity ^0.8.20;

import {IERC165} from "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon
     *   a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or
     *   {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon
     *   a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
     * understand this adds an external call which potentially creates a reentrancy vulnerability.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the address zero.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool approved) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);
}

File 20 of 27 : IRewarder.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {IERC20} from "openzeppelin/token/ERC20/IERC20.sol";

interface IRewarder {
    function getToken() external view returns (IERC20);

    function getCaller() external view returns (address);

    function initialize(address initialOwner) external;
}

File 21 of 27 : IBaseRewarder.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {IERC20} from "openzeppelin/token/ERC20/IERC20.sol";

import {IRewarder} from "./IRewarder.sol";

interface IBaseRewarder is IRewarder {
    error BaseRewarder__NativeTransferFailed();
    error BaseRewarder__InvalidCaller();
    error BaseRewarder__Stopped();
    error BaseRewarder__AlreadyStopped();
    error BaseRewarder__NotNativeRewarder();
    error BaseRewarder__ZeroAmount();
    error BaseRewarder__ZeroReward();
    error BaseRewarder__InvalidDuration();
    error BaseRewarder__InvalidPid(uint256 pid);
    error BaseRewarder__InvalidStartTimestamp(uint256 startTimestamp);
    error BaseRewarder__CannotRenounceOwnership();

    event Claim(address indexed account, IERC20 indexed token, uint256 reward);

    event RewardParameterUpdated(uint256 rewardPerSecond, uint256 startTimestamp, uint256 endTimestamp);

    event Stopped();

    event Swept(IERC20 indexed token, address indexed account, uint256 amount);

    function getToken() external view returns (IERC20);

    function getCaller() external view returns (address);

    function getPid() external view returns (uint256);

    function getRewarderParameter()
        external
        view
        returns (IERC20 token, uint256 rewardPerSecond, uint256 lastUpdateTimestamp, uint256 endTimestamp);

    function getRemainingReward() external view returns (uint256);

    function getPendingReward(address account, uint256 balance, uint256 totalSupply)
        external
        view
        returns (IERC20 token, uint256 pendingReward);

    function isStopped() external view returns (bool);

    function initialize(address initialOwner) external;

    function setRewardPerSecond(uint256 maxRewardPerSecond, uint256 expectedDuration)
        external
        returns (uint256 rewardPerSecond);

    function setRewarderParameters(uint256 maxRewardPerSecond, uint256 startTimestamp, uint256 expectedDuration)
        external
        returns (uint256 rewardPerSecond);

    function stop() external;

    function sweep(IERC20 token, address account) external;

    function onModify(address account, uint256 pid, uint256 oldBalance, uint256 newBalance, uint256 totalSupply)
        external
        returns (uint256);
}

File 22 of 27 : IMasterChefRewarder.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {IBaseRewarder} from "./IBaseRewarder.sol";

interface IMasterChefRewarder is IBaseRewarder {
    error MasterChefRewarder__AlreadyLinked();
    error MasterChefRewarder__NotLinked();
    error MasterChefRewarder__UseUnlink();

    enum Status {
        Unlinked,
        Linked,
        Stopped
    }

    function link(uint256 pid) external;

    function unlink(uint256 pid) external;

    function onEmergency(address account, uint256 pid, uint256 oldBalance, uint256 newBalance, uint256 oldTotalSupply) external;
}

File 23 of 27 : IMetro.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import {IERC20} from "openzeppelin/token/ERC20/IERC20.sol";

interface IMetro is IERC20 {
    function mint(address account, uint256 amount) external returns (uint256);
}

File 24 of 27 : Rewarder.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import {Amounts} from "./Amounts.sol";
import {Constants} from "./Constants.sol";

/**
 * @title Rewarder Library
 * @dev A library that defines various functions for calculating rewards.
 * It takes care about the reward debt and the accumulated debt per share.
 */
library Rewarder {
    using Amounts for Amounts.Parameter;

    struct Parameter {
        uint256 lastUpdateTimestamp;
        uint256 accDebtPerShare;
        mapping(address => uint256) debt;
    }

    /**
     * @dev Returns the debt associated with an amount.
     * @param accDebtPerShare The accumulated debt per share.
     * @param deposit The amount.
     * @return The debt associated with the amount.
     */
    function getDebt(uint256 accDebtPerShare, uint256 deposit) internal pure returns (uint256) {
        return (deposit * accDebtPerShare) >> Constants.ACC_PRECISION_BITS;
    }

    /**
     * @dev Returns the debt per share associated with a total deposit and total rewards.
     * @param totalDeposit The total deposit.
     * @param totalRewards The total rewards.
     * @return The debt per share associated with the total deposit and total rewards.
     */
    function getDebtPerShare(uint256 totalDeposit, uint256 totalRewards) internal pure returns (uint256) {
        return totalDeposit == 0 ? 0 : (totalRewards << Constants.ACC_PRECISION_BITS) / totalDeposit;
    }

    /**
     * @dev Returns the total rewards to emit.
     * If the end timestamp is in the past, the rewards are calculated up to the end timestamp.
     * If the last update timestamp is in the future, it will return 0.
     * @param rewarder The storage pointer to the rewarder.
     * @param rewardPerSecond The reward per second.
     * @param endTimestamp The end timestamp.
     * @param totalSupply The total supply.
     * @return The total rewards.
     */
    function getTotalRewards(
        Parameter storage rewarder,
        uint256 rewardPerSecond,
        uint256 endTimestamp,
        uint256 totalSupply
    ) internal view returns (uint256) {
        if (totalSupply == 0) return 0;

        uint256 lastUpdateTimestamp = rewarder.lastUpdateTimestamp;
        uint256 timestamp = block.timestamp > endTimestamp ? endTimestamp : block.timestamp;

        return timestamp > lastUpdateTimestamp ? (timestamp - lastUpdateTimestamp) * rewardPerSecond : 0;
    }

    /**
     * @dev Returns the total rewards to emit.
     * @param rewarder The storage pointer to the rewarder.
     * @param rewardPerSecond The reward per second.
     * @param totalSupply The total supply.
     * @return The total rewards.
     */
    function getTotalRewards(Parameter storage rewarder, uint256 rewardPerSecond, uint256 totalSupply)
        internal
        view
        returns (uint256)
    {
        return getTotalRewards(rewarder, rewardPerSecond, block.timestamp, totalSupply);
    }

    /**
     * @dev Returns the pending reward of an account.
     * @param rewarder The storage pointer to the rewarder.
     * @param amounts The storage pointer to the amounts.
     * @param account The address of the account.
     * @param totalRewards The total rewards.
     * @return The pending reward of the account.
     */
    function getPendingReward(
        Parameter storage rewarder,
        Amounts.Parameter storage amounts,
        address account,
        uint256 totalRewards
    ) internal view returns (uint256) {
        return getPendingReward(rewarder, account, amounts.getAmountOf(account), amounts.getTotalAmount(), totalRewards);
    }

    /**
     * @dev Returns the pending reward of an account.
     * If the balance of the account is 0, it will always return 0.
     * @param rewarder The storage pointer to the rewarder.
     * @param account The address of the account.
     * @param balance The balance of the account.
     * @param totalSupply The total supply.
     * @param totalRewards The total rewards.
     * @return The pending reward of the account.
     */
    function getPendingReward(
        Parameter storage rewarder,
        address account,
        uint256 balance,
        uint256 totalSupply,
        uint256 totalRewards
    ) internal view returns (uint256) {
        uint256 accDebtPerShare = rewarder.accDebtPerShare + getDebtPerShare(totalSupply, totalRewards);

        return balance == 0 ? 0 : getDebt(accDebtPerShare, balance) - rewarder.debt[account];
    }

    /**
     * @dev Updates the rewarder.
     * If the balance of the account is 0, it will always return 0.
     * @param rewarder The storage pointer to the rewarder.
     * @param account The address of the account.
     * @param oldBalance The old balance of the account.
     * @param newBalance The new balance of the account.
     * @param totalSupply The total supply.
     * @param totalRewards The total rewards.
     * @return rewards The rewards of the account.
     */
    function update(
        Parameter storage rewarder,
        address account,
        uint256 oldBalance,
        uint256 newBalance,
        uint256 totalSupply,
        uint256 totalRewards
    ) internal returns (uint256 rewards) {
        uint256 accDebtPerShare = updateAccDebtPerShare(rewarder, totalSupply, totalRewards);

        rewards = oldBalance == 0 ? 0 : getDebt(accDebtPerShare, oldBalance) - rewarder.debt[account];

        rewarder.debt[account] = getDebt(accDebtPerShare, newBalance);
    }

    /**
     * @dev Updates the accumulated debt per share.
     * If the last update timestamp is in the future, it will not update the last update timestamp.
     * @param rewarder The storage pointer to the rewarder.
     * @param totalSupply The total supply.
     * @param totalRewards The total rewards.
     * @return The accumulated debt per share.
     */
    function updateAccDebtPerShare(Parameter storage rewarder, uint256 totalSupply, uint256 totalRewards)
        internal
        returns (uint256)
    {
        uint256 debtPerShare = getDebtPerShare(totalSupply, totalRewards);

        if (block.timestamp > rewarder.lastUpdateTimestamp) rewarder.lastUpdateTimestamp = block.timestamp;

        return debtPerShare == 0 ? rewarder.accDebtPerShare : rewarder.accDebtPerShare += debtPerShare;
    }
}

File 25 of 27 : Math.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

/**
 * @title Math
 * @dev Library for mathematical operations with overflow and underflow checks.
 */
library Math {
    error Math__UnderOverflow();

    uint256 internal constant MAX_INT256 = 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff;

    /**
     * @dev Adds a signed integer to an unsigned integer with overflow check.
     * The result must be greater than or equal to 0 and less than or equal to MAX_INT256.
     * @param x Unsigned integer to add to.
     * @param delta Signed integer to add.
     * @return y The result of the addition.
     */
    function addDelta(uint256 x, int256 delta) internal pure returns (uint256 y) {
        uint256 success;

        assembly {
            y := add(x, delta)

            success := iszero(or(gt(x, MAX_INT256), gt(y, MAX_INT256)))
        }

        if (success == 0) revert Math__UnderOverflow();
    }

    /**
     * @dev Safely converts an unsigned integer to a signed integer.
     * @param x Unsigned integer to convert.
     * @return y Signed integer result.
     */
    function toInt256(uint256 x) internal pure returns (int256 y) {
        if (x > MAX_INT256) revert Math__UnderOverflow();

        return int256(x);
    }
}

File 26 of 27 : ContextUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Context.sol)

pragma solidity ^0.8.20;
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @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 ContextUpgradeable is Initializable {
    function __Context_init() internal onlyInitializing {
    }

    function __Context_init_unchained() internal onlyInitializing {
    }
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

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

File 27 of 27 : IERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/IERC165.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

Settings
{
  "remappings": [
    "ds-test/=lib/forge-std/lib/ds-test/src/",
    "forge-std/=lib/forge-std/src/",
    "openzeppelin/=lib/openzeppelin-contracts/contracts/",
    "openzeppelin-contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
    "solmate/=lib/solmate/",
    "joe-v2/=lib/joe-v2/",
    "@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
    "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
    "erc4626-tests/=lib/openzeppelin-contracts-upgradeable/lib/erc4626-tests/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 800
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "shanghai",
  "viaIR": false,
  "libraries": {}
}

Contract Security Audit

Contract ABI

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IRewarderFactory","name":"factory","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"bytes32","name":"key","type":"bytes32"}],"name":"EnumerableMapNonexistentKey","type":"error"},{"inputs":[],"name":"IVoter_VotingPeriodEnded","type":"error"},{"inputs":[],"name":"IVoter_VotingPeriodNotStarted","type":"error"},{"inputs":[],"name":"IVoter_ZeroValue","type":"error"},{"inputs":[],"name":"IVoter__AlreadyVoted","type":"error"},{"inputs":[{"internalType":"uint256","name":"pid","type":"uint256"}],"name":"IVoter__DuplicatePoolId","type":"error"},{"inputs":[],"name":"IVoter__EmergencyUnlock","type":"error"},{"inputs":[],"name":"IVoter__InsufficientLockTime","type":"error"},{"inputs":[],"name":"IVoter__InsufficientVotingPower","type":"error"},{"inputs":[],"name":"IVoter__InvalidLength","type":"error"},{"inputs":[],"name":"IVoter__NoFinishedPeriod","type":"error"},{"inputs":[],"name":"IVoter__NotOwner","type":"error"},{"inputs":[],"name":"IVoter__TooManyPoolIds","type":"error"},{"inputs":[],"name":"InvalidInitialization","type":"error"},{"inputs":[],"name":"NotInitializing","type":"error"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"OwnableInvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"OwnableUnauthorizedAccount","type":"error"},{"inputs":[],"name":"Voter__InvalidRegisterCaller","type":"error"},{"inputs":[],"name":"Voter__PoolNotVotable","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"rewarder","type":"address"}],"name":"ElevatedRewarderAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"rewarder","type":"address"}],"name":"ElevatedRewarderRemoved","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint64","name":"version","type":"uint64"}],"name":"Initialized","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"lockTime","type":"uint256"}],"name":"MinimumLockTimeUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"minimum","type":"uint256"}],"name":"MinimumVotesPerPoolUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"operator","type":"address"}],"name":"OperatorUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferStarted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256[]","name":"poolIds","type":"uint256[]"},{"indexed":false,"internalType":"uint256[]","name":"pidWeights","type":"uint256[]"}],"name":"TopPoolIdsWithWeightsSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"votingPeriod","type":"uint256"},{"indexed":false,"internalType":"address[]","name":"votedPools","type":"address[]"},{"indexed":false,"internalType":"uint256[]","name":"votesDeltaAmounts","type":"uint256[]"}],"name":"Voted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"validator","type":"address"}],"name":"VoterPoolValidatorUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"duration","type":"uint256"}],"name":"VotingDurationUpdated","type":"event"},{"anonymous":false,"inputs":[],"name":"VotingPeriodStarted","type":"event"},{"inputs":[],"name":"acceptOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"rewarder","type":"address"}],"name":"addElevatedRewarder","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"period","type":"uint256"},{"internalType":"address","name":"pool","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"getBribeRewarderAt","outputs":[{"internalType":"contract IBribeRewarder","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"period","type":"uint256"},{"internalType":"address","name":"pool","type":"address"}],"name":"getBribeRewarderLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getCurrentVotingPeriod","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getLatestFinishedPeriod","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getMasterChef","outputs":[{"internalType":"contract IMasterChef","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getMinimumLockTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getMinimumVotesPerPool","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getMlumStaking","outputs":[{"internalType":"contract IMetroStaking","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getPeriodDuration","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"periodId","type":"uint256"}],"name":"getPeriodStartEndtime","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getPeriodStartTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"pool","type":"address"}],"name":"getPoolVotes","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"periodId","type":"uint256"},{"internalType":"address","name":"pool","type":"address"}],"name":"getPoolVotesPerPeriod","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getTopPoolIds","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getTotalVotes","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getTotalWeight","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"period","type":"uint256"},{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"getUserBribeRewaderAt","outputs":[{"internalType":"contract IBribeRewarder","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"period","type":"uint256"},{"internalType":"address","name":"account","type":"address"}],"name":"getUserBribeRewarderLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"address","name":"pool","type":"address"}],"name":"getUserVotes","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getVotedPools","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"getVotedPoolsAtIndex","outputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getVotedPoolsLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"periodId","type":"uint256"},{"internalType":"address","name":"pool","type":"address"}],"name":"getVotesPerPeriod","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"pid","type":"uint256"}],"name":"getWeight","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"periodId","type":"uint256"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"hasVoted","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"initialOwner","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"onRegister","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"address","name":"account","type":"address"}],"name":"ownerOf","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pendingOwner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"rewarder","type":"address"}],"name":"removeElevatedRewarder","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"pids","type":"uint256[]"},{"internalType":"uint256[]","name":"weights","type":"uint256[]"}],"name":"setTopPoolIdsWithWeights","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"startNewVotingPeriod","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"lockTime","type":"uint256"}],"name":"updateMinimumLockTime","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"votesPerPool","type":"uint256"}],"name":"updateMinimumVotesPerPool","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"}],"name":"updateOperator","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"duration","type":"uint256"}],"name":"updatePeriodDuration","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IVoterPoolValidator","name":"poolValidator","type":"address"}],"name":"updatePoolValidator","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"address[]","name":"pools","type":"address[]"},{"internalType":"uint256[]","name":"deltaAmounts","type":"uint256[]"}],"name":"vote","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

0000000000000000000000001a5ded6adcfc64acede86151b1f142088c6e03da000000000000000000000000dcbc470ec51480f6ce58e7a2a1787ac8cddf6bc8000000000000000000000000d9db92613867fe0d290ce64fe737e2f8b80cadc3

-----Decoded View---------------
Arg [0] : masterChef (address): 0x1a5Ded6adCfc64aceDE86151B1F142088C6E03da
Arg [1] : mlumStaking (address): 0xDcbC470ec51480f6cE58E7a2a1787AC8cdDF6Bc8
Arg [2] : factory (address): 0xd9db92613867FE0d290CE64Fe737E2F8B80CADc3

-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 0000000000000000000000001a5ded6adcfc64acede86151b1f142088c6e03da
Arg [1] : 000000000000000000000000dcbc470ec51480f6ce58e7a2a1787ac8cddf6bc8
Arg [2] : 000000000000000000000000d9db92613867fe0d290ce64fe737e2f8b80cadc3


Block Transaction Gas Used Reward
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Validator Index Block Amount
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Transaction Hash Block Value Eth2 PubKey Valid
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.