Contract 0xd92cEC1C516413533987692c046faE8B974d6D26 11

 
Txn Hash Method
Block
From
To
Value
0x3721c250602dc36a907f94db8d0f8dc1d66d80c673c451acb61ac5f45c0b86efNotify Reward Am...1167231262024-02-27 14:43:493 days 11 hrs ago0x079b8ee9b92956dcb02e4808d884b1f55014c4ae IN  0xd92cec1c516413533987692c046fae8b974d6d260 ETH0.0000990876860.019234129
0xdb027b08ba4352dd5a4dc9ea4219ec205dab7ca99a73a74363b49a54332734ddNotify Reward Am...1149974262024-01-18 16:00:2943 days 10 hrs ago0x4209d5114ce21e3ec28b792f62755c8d117f6402 IN  0xd92cec1c516413533987692c046fae8b974d6d260 ETH0.0000690227050.103325149
0xd364a56694990c4421280b23812d9ecc6e6b85523d13bc041956f6efc2cd32d5Notify Reward Am...1146577922024-01-10 19:19:2151 days 6 hrs ago0x5c3aac3b13ae184ea1e8f35fc5d91c0cce331675 IN  0xd92cec1c516413533987692c046fae8b974d6d260 ETH0.0000649680120.009147149
0xd1d7d82a2cd15f3142950b0e022f330ffd543b854505a976bb2fc407949d6ce2Notify Reward Am...1141289022023-12-29 13:29:4163 days 12 hrs ago0xcd596397b7baa0687a20182e05c31827fef23c61 IN  0xd92cec1c516413533987692c046fae8b974d6d260 ETH0.0000405584550.103286749
0xb0f99fddd24b8106cbd70eaae108efd5b8de1e3c02434ce594f3c03d8649372dNotify Reward Am...1139258862023-12-24 20:42:2968 days 5 hrs ago0x96f3ab9814be000772110ca056a87e0ec0d9fd51 IN  0xd92cec1c516413533987692c046fae8b974d6d260 ETH0.000049435040.104805205
0x86de9221ede0e1600481928d3da3bfe8b6ed95a062ebbd14285a385af8a06518Notify Reward Am...1124161822023-11-19 21:59:01103 days 4 hrs ago0xdcfbf1b9392e2f5a92ad39a7d9a9e8fa464aa24b IN  0xd92cec1c516413533987692c046fae8b974d6d260 ETH0.0000614089310.11203085
0x4347f8ca1c2fa2d7c48f7ca77503deee01d067bbe84cf692bf505821145578a3Notify Reward Am...1124084162023-11-19 17:40:09103 days 8 hrs ago0xe55bd536a981d1ec730c7cb6b87284e3c69db837 IN  0xd92cec1c516413533987692c046fae8b974d6d260 ETH0.0000762708790.107341508
0xd0db38f5971be6452cffa00eb5fdb2eab4226ad48c0ee1b7176438f2f634aef5Notify Reward Am...1118569572023-11-06 23:18:11116 days 2 hrs ago0xdcfbf1b9392e2f5a92ad39a7d9a9e8fa464aa24b IN  0xd92cec1c516413533987692c046fae8b974d6d260 ETH0.0000669639470.118156609
0xefac29634a8cae3ebfe5e9d0c69031282ee013e2108ab496133f9761d06b91b6Notify Reward Am...1115303532023-10-30 9:51:23123 days 16 hrs ago0x3a64bea0efc5e8e2f220e549cbcd8b3f22fa1387 IN  0xd92cec1c516413533987692c046fae8b974d6d260 ETH0.0000231996570.007864774
0xa3b6e875f7daa1b09748f3699a24012e6c24f047a5ebaffd2835c26f81b7328bNotify Reward Am...1100641262023-09-26 11:17:09157 days 14 hrs ago0x74a1e9a532f35860f5e0d9a08b6139e266542bfb IN  0xd92cec1c516413533987692c046fae8b974d6d260 ETH0.0000244780260.153418542
0xec39780b4f82b40d23a0afb798051e426923cd2bf72c687d656b1ceb58722297Notify Reward Am...1100641212023-09-26 11:16:59157 days 14 hrs ago0x74a1e9a532f35860f5e0d9a08b6139e266542bfb IN  0xd92cec1c516413533987692c046fae8b974d6d260 ETH0.0000289461970.150270312
0xf9acf20fc6df3111cd6b2240367a9137d15ee44d9333aba217f2c9595dc76e0cNotify Reward Am...1096286262023-09-16 9:20:29167 days 16 hrs ago0x1bd00642155e8350f7d15728c1df8673697064c2 IN  0xd92cec1c516413533987692c046fae8b974d6d260 ETH0.0000292898550.219798883
0x19e9f1710c357abcd5fcbaa2d29b9c330a174160699371cb693658b153c252c4Notify Reward Am...1096267412023-09-16 8:17:39167 days 17 hrs ago0x1bd00642155e8350f7d15728c1df8673697064c2 IN  0xd92cec1c516413533987692c046fae8b974d6d260 ETH0.0000379246670.321119722
0xc4e234f3da0ed242270ecbb5076cdac8c298f7aedc79d5711abcb83c3f4af20bNotify Reward Am...1080049002023-08-09 19:16:17205 days 6 hrs ago0x509d7a35e30f520c19fc51841583b145a39532be IN  0xd92cec1c516413533987692c046fae8b974d6d260 ETH0.000049864940.100000192
0x7b8834c658af514047c2e87ef63e3d38ea5293729dea2855b8d19a3336374e43Notify Reward Am...1079598562023-08-08 18:14:49206 days 8 hrs ago0x3987f82fd46469a9e8812d259b4ef84fba2cc657 IN  0xd92cec1c516413533987692c046fae8b974d6d260 ETH0.0000738589840.100001015
0x5351901f70581141b32fdae59b403607191fb279291b669ebe0ef29e649aea3bNotify Reward Am...1079592432023-08-08 17:54:23206 days 8 hrs ago0x3987f82fd46469a9e8812d259b4ef84fba2cc657 IN  0xd92cec1c516413533987692c046fae8b974d6d260 ETH0.0000773362430.100020583
0xe8cff79818405b03a9e1409a3590ff9445d854ff8e6a0e3a324bd63f6dbc7b05Notify Reward Am...1078070982023-08-05 5:22:53209 days 20 hrs ago0x821d92e6e62a2004e2cec914c23a9f346add0331 IN  0xd92cec1c516413533987692c046fae8b974d6d260 ETH0.0000232781070.0000006
0x1f8a87ae108efe378ee8978a3ba9a3e9dc9dfd359afe9be35ef2acda8cf5a404Notify Reward Am...1077610232023-08-04 3:47:03210 days 22 hrs ago0x0554fad9b7ad13a8d869c12cbfa1e87cde08cc8c IN  0xd92cec1c516413533987692c046fae8b974d6d260 ETH0.000033129530.100000092
0xa0a2238856f94220699f24178b37c467aea8578e56c459c3a078225d93a7059eNotify Reward Am...1076184012023-07-31 20:32:59214 days 5 hrs ago0x821d92e6e62a2004e2cec914c23a9f346add0331 IN  0xd92cec1c516413533987692c046fae8b974d6d260 ETH0.0000619550880.0055598
0x7c0318badab8239bb111fb554930d76af93935612cf82b1bce7e7c2fbf6b362aNotify Reward Am...1068531402023-07-14 3:24:17231 days 22 hrs ago0xda6936d1d144edd44a37d7746184ef5e7eff8641 IN  0xd92cec1c516413533987692c046fae8b974d6d260 ETH0.0000348571420.001
0x8e10d339ed8c25353e495bd7aede0cc672f840f90ca58fac8a87d138f43b75a6Notify Reward Am...1064665762023-07-05 4:38:49240 days 21 hrs ago0x821d92e6e62a2004e2cec914c23a9f346add0331 IN  0xd92cec1c516413533987692c046fae8b974d6d260 ETH0.0000714798350.0002
0x8734457ac8014e6c734a5ccce2208754ebd11a239c7e5fed54295c64ff357e13Notify Reward Am...1064663872023-07-05 4:32:31240 days 21 hrs ago0x821d92e6e62a2004e2cec914c23a9f346add0331 IN  0xd92cec1c516413533987692c046fae8b974d6d260 ETH0.0000859725780.0002
0xcdab50b78f29e47b6e5142c099a6e386791af1ca1f6f0ce908fbe6e0ea978e74Notify Reward Am...1060964172023-06-26 15:00:11249 days 11 hrs ago0x1bd1aa4ddf40e87ce385eb837faddb028fc1ec23 IN  0xd92cec1c516413533987692c046fae8b974d6d260 ETH0.0000353685650.000002778
0x937afd68c768b098e57ceb1db252575e1858f91efb5fd3a93b8e82f3fb6e1ad2Notify Reward Am...1060534392023-06-25 15:07:35250 days 11 hrs ago0x961651bf13116f56d4383fa36f9ee3240cd40bc8 IN  0xd92cec1c516413533987692c046fae8b974d6d260 ETH0.0000273364370.000007086
[ Download CSV Export 
Latest 25 internal transaction
Parent Txn Hash Block From To Value
0x1970a029bc90f5b4ac2b2b00ef79779c99aaa4c962a805d7195de97ad135ffa61075577602023-07-30 10:51:37215 days 15 hrs ago Velodrome Finance: Voter V2 0xd92cec1c516413533987692c046fae8b974d6d260 ETH
0xf5374525fdcaac51f4038f593220e8b8c0f077a0386d358750f6870b08fe2f9b1075576952023-07-30 10:49:27215 days 15 hrs ago 0xd92cec1c516413533987692c046fae8b974d6d26 Velodrome Finance: VELO Token V20 ETH
0xf5374525fdcaac51f4038f593220e8b8c0f077a0386d358750f6870b08fe2f9b1075576952023-07-30 10:49:27215 days 15 hrs ago 0xd92cec1c516413533987692c046fae8b974d6d26 Optimism: OP Token0 ETH
0xf5374525fdcaac51f4038f593220e8b8c0f077a0386d358750f6870b08fe2f9b1075576952023-07-30 10:49:27215 days 15 hrs ago 0xd92cec1c516413533987692c046fae8b974d6d26 0x3417e54a51924c225330f8770514ad5560b9098d0 ETH
0xf5374525fdcaac51f4038f593220e8b8c0f077a0386d358750f6870b08fe2f9b1075576952023-07-30 10:49:27215 days 15 hrs ago 0xd92cec1c516413533987692c046fae8b974d6d26 Velodrome Finance: Voting Escrow V20 ETH
0xf5374525fdcaac51f4038f593220e8b8c0f077a0386d358750f6870b08fe2f9b1075576952023-07-30 10:49:27215 days 15 hrs ago 0xd92cec1c516413533987692c046fae8b974d6d26 Velodrome Finance: Voting Escrow V20 ETH
0xf5374525fdcaac51f4038f593220e8b8c0f077a0386d358750f6870b08fe2f9b1075576952023-07-30 10:49:27215 days 15 hrs ago Velodrome Finance: Voter V2 0xd92cec1c516413533987692c046fae8b974d6d260 ETH
0x38116e2b9b10ae05ecb647de82d5257adaddafed5ac6181096692305181532631075529432023-07-30 8:11:03215 days 18 hrs ago 0xd92cec1c516413533987692c046fae8b974d6d26 Velodrome Finance: VELO Token V20 ETH
0x38116e2b9b10ae05ecb647de82d5257adaddafed5ac6181096692305181532631075529432023-07-30 8:11:03215 days 18 hrs ago 0xd92cec1c516413533987692c046fae8b974d6d26 Optimism: OP Token0 ETH
0x38116e2b9b10ae05ecb647de82d5257adaddafed5ac6181096692305181532631075529432023-07-30 8:11:03215 days 18 hrs ago 0xd92cec1c516413533987692c046fae8b974d6d26 0x3417e54a51924c225330f8770514ad5560b9098d0 ETH
0x38116e2b9b10ae05ecb647de82d5257adaddafed5ac6181096692305181532631075529432023-07-30 8:11:03215 days 18 hrs ago 0xd92cec1c516413533987692c046fae8b974d6d26 Velodrome Finance: Voting Escrow V20 ETH
0x38116e2b9b10ae05ecb647de82d5257adaddafed5ac6181096692305181532631075529432023-07-30 8:11:03215 days 18 hrs ago 0xd92cec1c516413533987692c046fae8b974d6d26 Velodrome Finance: Voting Escrow V20 ETH
0x38116e2b9b10ae05ecb647de82d5257adaddafed5ac6181096692305181532631075529432023-07-30 8:11:03215 days 18 hrs ago Velodrome Finance: Voter V2 0xd92cec1c516413533987692c046fae8b974d6d260 ETH
0x08724d82402a17256cb24a8aceb40d72a5b9bf9fa300c26f691f58a5c06e662a1075512912023-07-30 7:15:59215 days 19 hrs ago Velodrome Finance: Voter V2 0xd92cec1c516413533987692c046fae8b974d6d260 ETH
0x0c57a60fa2aaf87a4b24aa34244f6c5e2e23c25ebf4a052d6ffeffeda52e443b1075512512023-07-30 7:14:39215 days 19 hrs ago 0xd92cec1c516413533987692c046fae8b974d6d26 Velodrome Finance: VELO Token V20 ETH
0x0c57a60fa2aaf87a4b24aa34244f6c5e2e23c25ebf4a052d6ffeffeda52e443b1075512512023-07-30 7:14:39215 days 19 hrs ago 0xd92cec1c516413533987692c046fae8b974d6d26 0x12ff4a259e14d4dcd239c447d23c9b00f7781d8f0 ETH
0x0c57a60fa2aaf87a4b24aa34244f6c5e2e23c25ebf4a052d6ffeffeda52e443b1075512512023-07-30 7:14:39215 days 19 hrs ago 0xd92cec1c516413533987692c046fae8b974d6d26 Optimism: OP Token0 ETH
0x0c57a60fa2aaf87a4b24aa34244f6c5e2e23c25ebf4a052d6ffeffeda52e443b1075512512023-07-30 7:14:39215 days 19 hrs ago 0xd92cec1c516413533987692c046fae8b974d6d26 0x3417e54a51924c225330f8770514ad5560b9098d0 ETH
0x0c57a60fa2aaf87a4b24aa34244f6c5e2e23c25ebf4a052d6ffeffeda52e443b1075512512023-07-30 7:14:39215 days 19 hrs ago 0xd92cec1c516413533987692c046fae8b974d6d26 Velodrome Finance: Voting Escrow V20 ETH
0x0c57a60fa2aaf87a4b24aa34244f6c5e2e23c25ebf4a052d6ffeffeda52e443b1075512512023-07-30 7:14:39215 days 19 hrs ago 0xd92cec1c516413533987692c046fae8b974d6d26 Velodrome Finance: Voting Escrow V20 ETH
0x0c57a60fa2aaf87a4b24aa34244f6c5e2e23c25ebf4a052d6ffeffeda52e443b1075512512023-07-30 7:14:39215 days 19 hrs ago Velodrome Finance: Voter V2 0xd92cec1c516413533987692c046fae8b974d6d260 ETH
0x4a85199498ed11523955f175873782562011e2af2e9b7ed7e103c6e2aa7b92bd1075503392023-07-30 6:44:15215 days 19 hrs ago 0xd92cec1c516413533987692c046fae8b974d6d26 Optimism: OP Token0 ETH
0x4a85199498ed11523955f175873782562011e2af2e9b7ed7e103c6e2aa7b92bd1075503392023-07-30 6:44:15215 days 19 hrs ago 0xd92cec1c516413533987692c046fae8b974d6d26 0x3417e54a51924c225330f8770514ad5560b9098d0 ETH
0x4a85199498ed11523955f175873782562011e2af2e9b7ed7e103c6e2aa7b92bd1075503392023-07-30 6:44:15215 days 19 hrs ago 0xd92cec1c516413533987692c046fae8b974d6d26 Velodrome Finance: Voting Escrow V20 ETH
0x4a85199498ed11523955f175873782562011e2af2e9b7ed7e103c6e2aa7b92bd1075503392023-07-30 6:44:15215 days 19 hrs ago 0xd92cec1c516413533987692c046fae8b974d6d26 Velodrome Finance: Voting Escrow V20 ETH
[ Download CSV Export 
Loading

Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0x9afdc6c6caad5ff953e2cff9777c3af2e5d796fb
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
BribeVotingReward

Compiler Version
v0.8.19+commit.7dd6d404

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
File 1 of 22 : BribeVotingReward.sol
// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.19;

import {IVoter} from "../interfaces/IVoter.sol";
import {VotingReward} from "./VotingReward.sol";

/// @notice Bribes pay out rewards for a given pool based on the votes that were received from the user (goes hand in hand with Voter.vote())
contract BribeVotingReward is VotingReward {
    constructor(
        address _forwarder,
        address _voter,
        address[] memory _rewards
    ) VotingReward(_forwarder, _voter, _rewards) {}

    /// @inheritdoc VotingReward
    function notifyRewardAmount(address token, uint256 amount) external override nonReentrant {
        address sender = _msgSender();

        if (!isReward[token]) {
            if (!IVoter(voter).isWhitelistedToken(token)) revert NotWhitelisted();
            isReward[token] = true;
            rewards.push(token);
        }

        _notifyRewardAmount(sender, token, amount);
    }
}

File 2 of 22 : IVoter.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IVoter {
    error AlreadyVotedOrDeposited();
    error DistributeWindow();
    error FactoryPathNotApproved();
    error GaugeAlreadyKilled();
    error GaugeAlreadyRevived();
    error GaugeExists();
    error GaugeDoesNotExist(address _pool);
    error GaugeNotAlive(address _gauge);
    error InactiveManagedNFT();
    error MaximumVotingNumberTooLow();
    error NonZeroVotes();
    error NotAPool();
    error NotApprovedOrOwner();
    error NotGovernor();
    error NotEmergencyCouncil();
    error NotMinter();
    error NotWhitelistedNFT();
    error NotWhitelistedToken();
    error SameValue();
    error SpecialVotingWindow();
    error TooManyPools();
    error UnequalLengths();
    error ZeroBalance();
    error ZeroAddress();

    event GaugeCreated(
        address indexed poolFactory,
        address indexed votingRewardsFactory,
        address indexed gaugeFactory,
        address pool,
        address bribeVotingReward,
        address feeVotingReward,
        address gauge,
        address creator
    );
    event GaugeKilled(address indexed gauge);
    event GaugeRevived(address indexed gauge);
    event Voted(
        address indexed voter,
        address indexed pool,
        uint256 indexed tokenId,
        uint256 weight,
        uint256 totalWeight,
        uint256 timestamp
    );
    event Abstained(
        address indexed voter,
        address indexed pool,
        uint256 indexed tokenId,
        uint256 weight,
        uint256 totalWeight,
        uint256 timestamp
    );
    event NotifyReward(address indexed sender, address indexed reward, uint256 amount);
    event DistributeReward(address indexed sender, address indexed gauge, uint256 amount);
    event WhitelistToken(address indexed whitelister, address indexed token, bool indexed _bool);
    event WhitelistNFT(address indexed whitelister, uint256 indexed tokenId, bool indexed _bool);

    // mappings
    function gauges(address pool) external view returns (address);

    function poolForGauge(address gauge) external view returns (address);

    function gaugeToFees(address gauge) external view returns (address);

    function gaugeToBribe(address gauge) external view returns (address);

    function weights(address pool) external view returns (uint256);

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

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

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

    function isGauge(address) external view returns (bool);

    function isWhitelistedToken(address token) external view returns (bool);

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

    function isAlive(address gauge) external view returns (bool);

    function ve() external view returns (address);

    function governor() external view returns (address);

    function epochGovernor() external view returns (address);

    function emergencyCouncil() external view returns (address);

    function length() external view returns (uint256);

    /// @notice Called by Minter to distribute weekly emissions rewards for disbursement amongst gauges.
    /// @dev Assumes totalWeight != 0 (Will never be zero as long as users are voting).
    ///      Throws if not called by minter.
    /// @param _amount Amount of rewards to distribute.
    function notifyRewardAmount(uint256 _amount) external;

    /// @dev Utility to distribute to gauges of pools in range _start to _finish.
    /// @param _start   Starting index of gauges to distribute to.
    /// @param _finish  Ending index of gauges to distribute to.
    function distribute(uint256 _start, uint256 _finish) external;

    /// @dev Utility to distribute to gauges of pools in array.
    /// @param _gauges Array of gauges to distribute to.
    function distribute(address[] memory _gauges) external;

    /// @notice Called by users to update voting balances in voting rewards contracts.
    /// @param _tokenId Id of veNFT whose balance you wish to update.
    function poke(uint256 _tokenId) external;

    /// @notice Called by users to vote for pools. Votes distributed proportionally based on weights.
    ///         Can only vote or deposit into a managed NFT once per epoch.
    ///         Can only vote for gauges that have not been killed.
    /// @dev Weights are distributed proportional to the sum of the weights in the array.
    ///      Throws if length of _poolVote and _weights do not match.
    /// @param _tokenId     Id of veNFT you are voting with.
    /// @param _poolVote    Array of pools you are voting for.
    /// @param _weights     Weights of pools.
    function vote(uint256 _tokenId, address[] calldata _poolVote, uint256[] calldata _weights) external;

    /// @notice Called by users to reset voting state. Required if you wish to make changes to
    ///         veNFT state (e.g. merge, split, deposit into managed etc).
    ///         Cannot reset in the same epoch that you voted in.
    ///         Can vote or deposit into a managed NFT again after reset.
    /// @param _tokenId Id of veNFT you are reseting.
    function reset(uint256 _tokenId) external;

    /// @notice Called by users to deposit into a managed NFT.
    ///         Can only vote or deposit into a managed NFT once per epoch.
    ///         Note that NFTs deposited into a managed NFT will be re-locked
    ///         to the maximum lock time on withdrawal.
    /// @dev Throws if not approved or owner.
    ///      Throws if managed NFT is inactive.
    ///      Throws if depositing within privileged window (one hour prior to epoch flip).
    function depositManaged(uint256 _tokenId, uint256 _mTokenId) external;

    /// @notice Called by users to withdraw from a managed NFT.
    ///         Cannot do it in the same epoch that you deposited into a managed NFT.
    ///         Can vote or deposit into a managed NFT again after withdrawing.
    ///         Note that the NFT withdrawn is re-locked to the maximum lock time.
    function withdrawManaged(uint256 _tokenId) external;

    /// @notice Claim emissions from gauges.
    /// @param _gauges Array of gauges to collect emissions from.
    function claimRewards(address[] memory _gauges) external;

    /// @notice Claim bribes for a given NFT.
    /// @dev Utility to help batch bribe claims.
    /// @param _bribes  Array of BribeVotingReward contracts to collect from.
    /// @param _tokens  Array of tokens that are used as bribes.
    /// @param _tokenId Id of veNFT that you wish to claim bribes for.
    function claimBribes(address[] memory _bribes, address[][] memory _tokens, uint256 _tokenId) external;

    /// @notice Claim fees for a given NFT.
    /// @dev Utility to help batch fee claims.
    /// @param _fees    Array of FeesVotingReward contracts to collect from.
    /// @param _tokens  Array of tokens that are used as fees.
    /// @param _tokenId Id of veNFT that you wish to claim fees for.
    function claimFees(address[] memory _fees, address[][] memory _tokens, uint256 _tokenId) external;

    /// @notice Set new governor.
    /// @dev Throws if not called by governor.
    /// @param _governor .
    function setGovernor(address _governor) external;

    /// @notice Set new epoch based governor.
    /// @dev Throws if not called by governor.
    /// @param _epochGovernor .
    function setEpochGovernor(address _epochGovernor) external;

    /// @notice Set new emergency council.
    /// @dev Throws if not called by emergency council.
    /// @param _emergencyCouncil .
    function setEmergencyCouncil(address _emergencyCouncil) external;

    /// @notice Whitelist (or unwhitelist) token for use in bribes.
    /// @dev Throws if not called by governor.
    /// @param _token .
    /// @param _bool .
    function whitelistToken(address _token, bool _bool) external;

    /// @notice Whitelist (or unwhitelist) token id for voting in last hour prior to epoch flip.
    /// @dev Throws if not called by governor.
    ///      Throws if already whitelisted.
    /// @param _tokenId .
    /// @param _bool .
    function whitelistNFT(uint256 _tokenId, bool _bool) external;

    /// @notice Create a new gauge (unpermissioned).
    /// @dev Governor can create a new gauge for a pool with any address.
    /// @dev V1 gauges can only be created by governor.
    /// @param _poolFactory .
    /// @param _pool .
    function createGauge(address _poolFactory, address _pool) external returns (address);

    /// @notice Kills a gauge. The gauge will not receive any new emissions and cannot be deposited into.
    ///         Can still withdraw from gauge.
    /// @dev Throws if not called by emergency council.
    ///      Throws if gauge already killed.
    /// @param _gauge .
    function killGauge(address _gauge) external;

    /// @notice Revives a killed gauge. Gauge will can receive emissions and deposits again.
    /// @dev Throws if not called by emergency council.
    ///      Throws if gauge is not killed.
    /// @param _gauge .
    function reviveGauge(address _gauge) external;

    /// @dev Update claims to emissions for an array of gauges.
    /// @param _gauges Array of gauges to update emissions for.
    function updateFor(address[] memory _gauges) external;

    /// @dev Update claims to emissions for gauges based on their pool id as stored in Voter.
    /// @param _start   Starting index of pools.
    /// @param _end     Ending index of pools.
    function updateFor(uint256 _start, uint256 _end) external;

    /// @dev Update claims to emissions for single gauge
    /// @param _gauge .
    function updateFor(address _gauge) external;
}

File 3 of 22 : VotingReward.sol
// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.19;

import {Reward} from "./Reward.sol";
import {IVotingEscrow} from "../interfaces/IVotingEscrow.sol";

/// @title Base voting reward contract for distribution of rewards by token id
///        on a weekly basis
abstract contract VotingReward is Reward {
    constructor(address _forwarder, address _voter, address[] memory _rewards) Reward(_forwarder, _voter) {
        uint256 _length = _rewards.length;
        for (uint256 i; i < _length; i++) {
            if (_rewards[i] != address(0)) {
                isReward[_rewards[i]] = true;
                rewards.push(_rewards[i]);
            }
        }

        authorized = _voter;
    }

    /// @inheritdoc Reward
    function getReward(uint256 tokenId, address[] memory tokens) external override nonReentrant {
        address sender = _msgSender();
        if (!IVotingEscrow(ve).isApprovedOrOwner(sender, tokenId) && sender != voter) revert NotAuthorized();

        address _owner = IVotingEscrow(ve).ownerOf(tokenId);
        _getReward(_owner, tokenId, tokens);
    }

    /// @inheritdoc Reward
    function notifyRewardAmount(address token, uint256 amount) external virtual override {}
}

File 4 of 22 : Reward.sol
// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.19;

import {Math} from "@openzeppelin/contracts/utils/math/Math.sol";
import {IReward} from "../interfaces/IReward.sol";
import {IVoter} from "../interfaces/IVoter.sol";
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {ERC2771Context} from "@openzeppelin/contracts/metatx/ERC2771Context.sol";
import {ReentrancyGuard} from "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import {VelodromeTimeLibrary} from "../libraries/VelodromeTimeLibrary.sol";

/// @title Reward
/// @author velodrome.finance, @figs999, @pegahcarter
/// @notice Base reward contract for distribution of rewards
abstract contract Reward is IReward, ERC2771Context, ReentrancyGuard {
    using SafeERC20 for IERC20;

    uint256 public constant DURATION = 7 days;

    address public immutable voter;
    address public immutable ve;
    /// @dev Address which has permission to externally call _deposit() & _withdraw()
    address public authorized;

    uint256 public totalSupply;
    mapping(uint256 => uint256) public balanceOf;
    mapping(address => mapping(uint256 => uint256)) public tokenRewardsPerEpoch;
    mapping(address => mapping(uint256 => uint256)) public lastEarn;

    address[] public rewards;
    mapping(address => bool) public isReward;

    /// @notice A checkpoint for marking balance
    struct Checkpoint {
        uint256 timestamp;
        uint256 balanceOf;
    }

    /// @notice A checkpoint for marking supply
    struct SupplyCheckpoint {
        uint256 timestamp;
        uint256 supply;
    }

    /// @notice A record of balance checkpoints for each account, by index
    mapping(uint256 => mapping(uint256 => Checkpoint)) public checkpoints;
    /// @notice The number of checkpoints for each account
    mapping(uint256 => uint256) public numCheckpoints;
    /// @notice A record of balance checkpoints for each token, by index
    mapping(uint256 => SupplyCheckpoint) public supplyCheckpoints;
    /// @notice The number of checkpoints
    uint256 public supplyNumCheckpoints;

    constructor(address _forwarder, address _voter) ERC2771Context(_forwarder) {
        voter = _voter;
        ve = IVoter(_voter).ve();
    }

    /// @inheritdoc IReward
    function getPriorBalanceIndex(uint256 tokenId, uint256 timestamp) public view returns (uint256) {
        uint256 nCheckpoints = numCheckpoints[tokenId];
        if (nCheckpoints == 0) {
            return 0;
        }

        // First check most recent balance
        if (checkpoints[tokenId][nCheckpoints - 1].timestamp <= timestamp) {
            return (nCheckpoints - 1);
        }

        // Next check implicit zero balance
        if (checkpoints[tokenId][0].timestamp > timestamp) {
            return 0;
        }

        uint256 lower = 0;
        uint256 upper = nCheckpoints - 1;
        while (upper > lower) {
            uint256 center = upper - (upper - lower) / 2; // ceil, avoiding overflow
            Checkpoint memory cp = checkpoints[tokenId][center];
            if (cp.timestamp == timestamp) {
                return center;
            } else if (cp.timestamp < timestamp) {
                lower = center;
            } else {
                upper = center - 1;
            }
        }
        return lower;
    }

    /// @inheritdoc IReward
    function getPriorSupplyIndex(uint256 timestamp) public view returns (uint256) {
        uint256 nCheckpoints = supplyNumCheckpoints;
        if (nCheckpoints == 0) {
            return 0;
        }

        // First check most recent balance
        if (supplyCheckpoints[nCheckpoints - 1].timestamp <= timestamp) {
            return (nCheckpoints - 1);
        }

        // Next check implicit zero balance
        if (supplyCheckpoints[0].timestamp > timestamp) {
            return 0;
        }

        uint256 lower = 0;
        uint256 upper = nCheckpoints - 1;
        while (upper > lower) {
            uint256 center = upper - (upper - lower) / 2; // ceil, avoiding overflow
            SupplyCheckpoint memory cp = supplyCheckpoints[center];
            if (cp.timestamp == timestamp) {
                return center;
            } else if (cp.timestamp < timestamp) {
                lower = center;
            } else {
                upper = center - 1;
            }
        }
        return lower;
    }

    function _writeCheckpoint(uint256 tokenId, uint256 balance) internal {
        uint256 _nCheckPoints = numCheckpoints[tokenId];
        uint256 _timestamp = block.timestamp;

        if (
            _nCheckPoints > 0 &&
            VelodromeTimeLibrary.epochStart(checkpoints[tokenId][_nCheckPoints - 1].timestamp) ==
            VelodromeTimeLibrary.epochStart(_timestamp)
        ) {
            checkpoints[tokenId][_nCheckPoints - 1] = Checkpoint(_timestamp, balance);
        } else {
            checkpoints[tokenId][_nCheckPoints] = Checkpoint(_timestamp, balance);
            numCheckpoints[tokenId] = _nCheckPoints + 1;
        }
    }

    function _writeSupplyCheckpoint() internal {
        uint256 _nCheckPoints = supplyNumCheckpoints;
        uint256 _timestamp = block.timestamp;

        if (
            _nCheckPoints > 0 &&
            VelodromeTimeLibrary.epochStart(supplyCheckpoints[_nCheckPoints - 1].timestamp) ==
            VelodromeTimeLibrary.epochStart(_timestamp)
        ) {
            supplyCheckpoints[_nCheckPoints - 1] = SupplyCheckpoint(_timestamp, totalSupply);
        } else {
            supplyCheckpoints[_nCheckPoints] = SupplyCheckpoint(_timestamp, totalSupply);
            supplyNumCheckpoints = _nCheckPoints + 1;
        }
    }

    function rewardsListLength() external view returns (uint256) {
        return rewards.length;
    }

    /// @inheritdoc IReward
    function earned(address token, uint256 tokenId) public view returns (uint256) {
        if (numCheckpoints[tokenId] == 0) {
            return 0;
        }

        uint256 reward = 0;
        uint256 _supply = 1;
        uint256 _currTs = VelodromeTimeLibrary.epochStart(lastEarn[token][tokenId]); // take epoch last claimed in as starting point
        uint256 _index = getPriorBalanceIndex(tokenId, _currTs);
        Checkpoint memory cp0 = checkpoints[tokenId][_index];

        // accounts for case where lastEarn is before first checkpoint
        _currTs = Math.max(_currTs, VelodromeTimeLibrary.epochStart(cp0.timestamp));

        // get epochs between current epoch and first checkpoint in same epoch as last claim
        uint256 numEpochs = (VelodromeTimeLibrary.epochStart(block.timestamp) - _currTs) / DURATION;

        if (numEpochs > 0) {
            for (uint256 i = 0; i < numEpochs; i++) {
                // get index of last checkpoint in this epoch
                _index = getPriorBalanceIndex(tokenId, _currTs + DURATION - 1);
                // get checkpoint in this epoch
                cp0 = checkpoints[tokenId][_index];
                // get supply of last checkpoint in this epoch
                _supply = Math.max(supplyCheckpoints[getPriorSupplyIndex(_currTs + DURATION - 1)].supply, 1);
                reward += (cp0.balanceOf * tokenRewardsPerEpoch[token][_currTs]) / _supply;
                _currTs += DURATION;
            }
        }

        return reward;
    }

    /// @inheritdoc IReward
    function _deposit(uint256 amount, uint256 tokenId) external {
        address sender = _msgSender();
        if (sender != authorized) revert NotAuthorized();

        totalSupply += amount;
        balanceOf[tokenId] += amount;

        _writeCheckpoint(tokenId, balanceOf[tokenId]);
        _writeSupplyCheckpoint();

        emit Deposit(sender, tokenId, amount);
    }

    /// @inheritdoc IReward
    function _withdraw(uint256 amount, uint256 tokenId) external {
        address sender = _msgSender();
        if (sender != authorized) revert NotAuthorized();

        totalSupply -= amount;
        balanceOf[tokenId] -= amount;

        _writeCheckpoint(tokenId, balanceOf[tokenId]);
        _writeSupplyCheckpoint();

        emit Withdraw(sender, tokenId, amount);
    }

    /// @inheritdoc IReward
    function getReward(uint256 tokenId, address[] memory tokens) external virtual nonReentrant {}

    /// @dev used with all getReward implementations
    function _getReward(address recipient, uint256 tokenId, address[] memory tokens) internal {
        uint256 _length = tokens.length;
        for (uint256 i = 0; i < _length; i++) {
            uint256 _reward = earned(tokens[i], tokenId);
            lastEarn[tokens[i]][tokenId] = block.timestamp;
            if (_reward > 0) IERC20(tokens[i]).safeTransfer(recipient, _reward);

            emit ClaimRewards(recipient, tokens[i], _reward);
        }
    }

    /// @inheritdoc IReward
    function notifyRewardAmount(address token, uint256 amount) external virtual nonReentrant {}

    /// @dev used within all notifyRewardAmount implementations
    function _notifyRewardAmount(address sender, address token, uint256 amount) internal {
        if (amount == 0) revert ZeroAmount();
        IERC20(token).safeTransferFrom(sender, address(this), amount);

        uint256 epochStart = VelodromeTimeLibrary.epochStart(block.timestamp);
        tokenRewardsPerEpoch[token][epochStart] += amount;

        emit NotifyReward(sender, token, epochStart, amount);
    }
}

File 5 of 22 : IVotingEscrow.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {IERC721, IERC721Metadata} from "@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol";
import {IERC4906} from "@openzeppelin/contracts/interfaces/IERC4906.sol";
import {IVotes} from "../governance/IVotes.sol";

interface IVotingEscrow is IVotes, IERC4906, IERC721Metadata {
    struct LockedBalance {
        int128 amount;
        uint256 end;
        bool isPermanent;
    }

    struct UserPoint {
        int128 bias;
        int128 slope; // # -dweight / dt
        uint256 ts;
        uint256 blk; // block
        uint256 permanent;
    }

    struct GlobalPoint {
        int128 bias;
        int128 slope; // # -dweight / dt
        uint256 ts;
        uint256 blk; // block
        uint256 permanentLockBalance;
    }

    /// @notice A checkpoint for recorded delegated voting weights at a certain timestamp
    struct Checkpoint {
        uint256 fromTimestamp;
        address owner;
        uint256 delegatedBalance;
        uint256 delegatee;
    }

    enum DepositType {
        DEPOSIT_FOR_TYPE,
        CREATE_LOCK_TYPE,
        INCREASE_LOCK_AMOUNT,
        INCREASE_UNLOCK_TIME
    }

    /// @dev Different types of veNFTs:
    /// NORMAL  - typical veNFT
    /// LOCKED  - veNFT which is locked into a MANAGED veNFT
    /// MANAGED - veNFT which can accept the deposit of NORMAL veNFTs
    enum EscrowType {
        NORMAL,
        LOCKED,
        MANAGED
    }

    error AlreadyVoted();
    error AmountTooBig();
    error ERC721ReceiverRejectedTokens();
    error ERC721TransferToNonERC721ReceiverImplementer();
    error InvalidNonce();
    error InvalidSignature();
    error InvalidSignatureS();
    error InvalidManagedNFTId();
    error LockDurationNotInFuture();
    error LockDurationTooLong();
    error LockExpired();
    error LockNotExpired();
    error NoLockFound();
    error NonExistentToken();
    error NotApprovedOrOwner();
    error NotDistributor();
    error NotEmergencyCouncilOrGovernor();
    error NotGovernor();
    error NotGovernorOrManager();
    error NotManagedNFT();
    error NotManagedOrNormalNFT();
    error NotLockedNFT();
    error NotNormalNFT();
    error NotPermanentLock();
    error NotOwner();
    error NotTeam();
    error NotVoter();
    error OwnershipChange();
    error PermanentLock();
    error SameAddress();
    error SameNFT();
    error SameState();
    error SplitNoOwner();
    error SplitNotAllowed();
    error SignatureExpired();
    error TooManyTokenIDs();
    error ZeroAddress();
    error ZeroAmount();
    error ZeroBalance();

    event Deposit(
        address indexed provider,
        uint256 indexed tokenId,
        DepositType indexed depositType,
        uint256 value,
        uint256 locktime,
        uint256 ts
    );
    event Withdraw(address indexed provider, uint256 indexed tokenId, uint256 value, uint256 ts);
    event LockPermanent(address indexed _owner, uint256 indexed _tokenId, uint256 amount, uint256 _ts);
    event UnlockPermanent(address indexed _owner, uint256 indexed _tokenId, uint256 amount, uint256 _ts);
    event Supply(uint256 prevSupply, uint256 supply);
    event Merge(
        address indexed _sender,
        uint256 indexed _from,
        uint256 indexed _to,
        uint256 _amountFrom,
        uint256 _amountTo,
        uint256 _amountFinal,
        uint256 _locktime,
        uint256 _ts
    );
    event Split(
        uint256 indexed _from,
        uint256 indexed _tokenId1,
        uint256 indexed _tokenId2,
        address _sender,
        uint256 _splitAmount1,
        uint256 _splitAmount2,
        uint256 _locktime,
        uint256 _ts
    );
    event CreateManaged(
        address indexed _to,
        uint256 indexed _mTokenId,
        address indexed _from,
        address _lockedManagedReward,
        address _freeManagedReward
    );
    event DepositManaged(
        address indexed _owner,
        uint256 indexed _tokenId,
        uint256 indexed _mTokenId,
        uint256 _weight,
        uint256 _ts
    );
    event WithdrawManaged(
        address indexed _owner,
        uint256 indexed _tokenId,
        uint256 indexed _mTokenId,
        uint256 _weight,
        uint256 _ts
    );
    event SetAllowedManager(address indexed _allowedManager);

    // State variables
    function factoryRegistry() external view returns (address);

    function token() external view returns (address);

    function distributor() external view returns (address);

    function voter() external view returns (address);

    function team() external view returns (address);

    function artProxy() external view returns (address);

    function allowedManager() external view returns (address);

    function tokenId() external view returns (uint256);

    /*///////////////////////////////////////////////////////////////
                            MANAGED NFT STORAGE
    //////////////////////////////////////////////////////////////*/

    /// @dev Mapping of token id to escrow type
    ///      Takes advantage of the fact default value is EscrowType.NORMAL
    function escrowType(uint256 tokenId) external view returns (EscrowType);

    /// @dev Mapping of token id to managed id
    function idToManaged(uint256 tokenId) external view returns (uint256 managedTokenId);

    /// @dev Mapping of user token id to managed token id to weight of token id
    function weights(uint256 tokenId, uint256 managedTokenId) external view returns (uint256 weight);

    /// @dev Mapping of managed id to deactivated state
    function deactivated(uint256 tokenId) external view returns (bool inactive);

    /// @dev Mapping from managed nft id to locked managed rewards
    ///      `token` denominated rewards (rebases/rewards) stored in locked managed rewards contract
    ///      to prevent co-mingling of assets
    function managedToLocked(uint256 tokenId) external view returns (address);

    /// @dev Mapping from managed nft id to free managed rewards contract
    ///      these rewards can be freely withdrawn by users
    function managedToFree(uint256 tokenId) external view returns (address);

    /*///////////////////////////////////////////////////////////////
                            MANAGED NFT LOGIC
    //////////////////////////////////////////////////////////////*/

    /// @notice Create managed NFT (a permanent lock) for use within ecosystem.
    /// @dev Throws if address already owns a managed NFT.
    /// @return _mTokenId managed token id.
    function createManagedLockFor(address _to) external returns (uint256 _mTokenId);

    /// @notice Delegates balance to managed nft
    ///         Note that NFTs deposited into a managed NFT will be re-locked
    ///         to the maximum lock time on withdrawal.
    ///         Permanent locks that are deposited will automatically unlock.
    /// @dev Managed nft will remain max-locked as long as there is at least one
    ///      deposit or withdrawal per week.
    ///      Throws if deposit nft is managed.
    ///      Throws if recipient nft is not managed.
    ///      Throws if deposit nft is already locked.
    ///      Throws if not called by voter.
    /// @param _tokenId tokenId of NFT being deposited
    /// @param _mTokenId tokenId of managed NFT that will receive the deposit
    function depositManaged(uint256 _tokenId, uint256 _mTokenId) external;

    /// @notice Retrieves locked rewards and withdraws balance from managed nft.
    ///         Note that the NFT withdrawn is re-locked to the maximum lock time.
    /// @dev Throws if NFT not locked.
    ///      Throws if not called by voter.
    /// @param _tokenId tokenId of NFT being deposited.
    function withdrawManaged(uint256 _tokenId) external;

    /// @notice Permit one address to call createManagedLockFor() that is not Voter.governor()
    function setAllowedManager(address _allowedManager) external;

    /// @notice Set Managed NFT state. Inactive NFTs cannot be deposited into.
    /// @param _mTokenId managed nft state to set
    /// @param _state true => inactive, false => active
    function setManagedState(uint256 _mTokenId, bool _state) external;

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

    function name() external view returns (string memory);

    function symbol() external view returns (string memory);

    function version() external view returns (string memory);

    function decimals() external view returns (uint8);

    function setTeam(address _team) external;

    function setArtProxy(address _proxy) external;

    /// @inheritdoc IERC721Metadata
    function tokenURI(uint256 tokenId) external view returns (string memory);

    /*//////////////////////////////////////////////////////////////
                      ERC721 BALANCE/OWNER STORAGE
    //////////////////////////////////////////////////////////////*/

    /// @dev Mapping from owner address to mapping of index to tokenId
    function ownerToNFTokenIdList(address _owner, uint256 _index) external view returns (uint256 _tokenId);

    /// @inheritdoc IERC721
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /// @inheritdoc IERC721
    function balanceOf(address owner) external view returns (uint256 balance);

    /*//////////////////////////////////////////////////////////////
                         ERC721 APPROVAL STORAGE
    //////////////////////////////////////////////////////////////*/

    /// @inheritdoc IERC721
    function getApproved(uint256 _tokenId) external view returns (address operator);

    /// @inheritdoc IERC721
    function isApprovedForAll(address owner, address operator) external view returns (bool);

    /// @notice Check whether spender is owner or an approved user for a given veNFT
    /// @param _spender .
    /// @param _tokenId .
    function isApprovedOrOwner(address _spender, uint256 _tokenId) external returns (bool);

    /*//////////////////////////////////////////////////////////////
                              ERC721 LOGIC
    //////////////////////////////////////////////////////////////*/

    /// @inheritdoc IERC721
    function approve(address to, uint256 tokenId) external;

    /// @inheritdoc IERC721
    function setApprovalForAll(address operator, bool approved) external;

    /// @inheritdoc IERC721
    function transferFrom(address from, address to, uint256 tokenId) external;

    /// @inheritdoc IERC721
    function safeTransferFrom(address from, address to, uint256 tokenId) external;

    /// @inheritdoc IERC721
    function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;

    /*//////////////////////////////////////////////////////////////
                              ERC165 LOGIC
    //////////////////////////////////////////////////////////////*/

    function supportsInterface(bytes4 _interfaceID) external view returns (bool);

    /*//////////////////////////////////////////////////////////////
                             ESCROW STORAGE
    //////////////////////////////////////////////////////////////*/

    function epoch() external view returns (uint256);

    function supply() external view returns (uint256);

    function userPointEpoch(uint256 _tokenId) external view returns (uint256 _epoch);

    /// @notice time -> signed slope change
    function slopeChanges(uint256 _timestamp) external view returns (int128);

    /// @notice account -> can split
    function canSplit(address _account) external view returns (bool);

    /// @notice Global point history at a given index
    function pointHistory(uint256 _loc) external view returns (GlobalPoint memory);

    /// @notice Get the LockedBalance (amount, end) of a _tokenId
    /// @param _tokenId .
    /// @return LockedBalance of _tokenId
    function locked(uint256 _tokenId) external view returns (LockedBalance memory);

    /// @notice User -> UserPoint[userEpoch]
    function userPointHistory(uint256 _tokenId, uint256 _loc) external view returns (UserPoint memory);

    /*//////////////////////////////////////////////////////////////
                              ESCROW LOGIC
    //////////////////////////////////////////////////////////////*/

    /// @notice Record global data to checkpoint
    function checkpoint() external;

    /// @notice Deposit `_value` tokens for `_tokenId` and add to the lock
    /// @dev Anyone (even a smart contract) can deposit for someone else, but
    ///      cannot extend their locktime and deposit for a brand new user
    /// @param _tokenId lock NFT
    /// @param _value Amount to add to user's lock
    function depositFor(uint256 _tokenId, uint256 _value) external;

    /// @notice Deposit `_value` tokens for `msg.sender` and lock for `_lockDuration`
    /// @param _value Amount to deposit
    /// @param _lockDuration Number of seconds to lock tokens for (rounded down to nearest week)
    /// @return TokenId of created veNFT
    function createLock(uint256 _value, uint256 _lockDuration) external returns (uint256);

    /// @notice Deposit `_value` tokens for `_to` and lock for `_lockDuration`
    /// @param _value Amount to deposit
    /// @param _lockDuration Number of seconds to lock tokens for (rounded down to nearest week)
    /// @param _to Address to deposit
    /// @return TokenId of created veNFT
    function createLockFor(uint256 _value, uint256 _lockDuration, address _to) external returns (uint256);

    /// @notice Deposit `_value` additional tokens for `_tokenId` without modifying the unlock time
    /// @param _value Amount of tokens to deposit and add to the lock
    function increaseAmount(uint256 _tokenId, uint256 _value) external;

    /// @notice Extend the unlock time for `_tokenId`
    ///         Cannot extend lock time of permanent locks
    /// @param _lockDuration New number of seconds until tokens unlock
    function increaseUnlockTime(uint256 _tokenId, uint256 _lockDuration) external;

    /// @notice Withdraw all tokens for `_tokenId`
    /// @dev Only possible if the lock is both expired and not permanent
    ///      This will burn the veNFT. Any rebases or rewards that are unclaimed
    ///      will no longer be claimable. Claim all rebases and rewards prior to calling this.
    function withdraw(uint256 _tokenId) external;

    /// @notice Merges `_from` into `_to`.
    /// @dev Cannot merge `_from` locks that are permanent or have already voted this epoch.
    ///      Cannot merge `_to` locks that have already expired.
    ///      This will burn the veNFT. Any rebases or rewards that are unclaimed
    ///      will no longer be claimable. Claim all rebases and rewards prior to calling this.
    /// @param _from VeNFT to merge from.
    /// @param _to VeNFT to merge into.
    function merge(uint256 _from, uint256 _to) external;

    /// @notice Splits veNFT into two new veNFTS - one with oldLocked.amount - `_amount`, and the second with `_amount`
    /// @dev    This burns the tokenId of the target veNFT
    ///         Callable by approved or owner
    ///         If this is called by approved, approved will not have permissions to manipulate the newly created veNFTs
    ///         Returns the two new split veNFTs to owner
    ///         If `from` is permanent, will automatically dedelegate.
    ///         This will burn the veNFT. Any rebases or rewards that are unclaimed
    ///         will no longer be claimable. Claim all rebases and rewards prior to calling this.
    /// @param _from VeNFT to split.
    /// @param _amount Amount to split from veNFT.
    /// @return _tokenId1 Return tokenId of veNFT with oldLocked.amount - `_amount`.
    /// @return _tokenId2 Return tokenId of veNFT with `_amount`.
    function split(uint256 _from, uint256 _amount) external returns (uint256 _tokenId1, uint256 _tokenId2);

    /// @notice Toggle split for a specific veNFT.
    /// @dev Toggle split for address(0) to enable or disable for all.
    /// @param _account Address to toggle split permissions
    /// @param _bool True to allow, false to disallow
    function toggleSplit(address _account, bool _bool) external;

    /// @notice Permanently lock a veNFT. Voting power will be equal to
    ///         `LockedBalance.amount` with no decay. Required to delegate.
    /// @dev Only callable by unlocked normal veNFTs.
    /// @param _tokenId tokenId to lock.
    function lockPermanent(uint256 _tokenId) external;

    /// @notice Unlock a permanently locked veNFT. Voting power will decay.
    ///         Will automatically dedelegate if delegated.
    /// @dev Only callable by permanently locked veNFTs.
    ///      Cannot unlock if already voted this epoch.
    /// @param _tokenId tokenId to unlock.
    function unlockPermanent(uint256 _tokenId) external;

    /*///////////////////////////////////////////////////////////////
                           GAUGE VOTING STORAGE
    //////////////////////////////////////////////////////////////*/

    /// @notice Get the voting power for _tokenId at the current timestamp
    /// @dev Returns 0 if called in the same block as a transfer.
    /// @param _tokenId .
    /// @return Voting power
    function balanceOfNFT(uint256 _tokenId) external view returns (uint256);

    /// @notice Get the voting power for _tokenId at a given timestamp
    /// @param _tokenId .
    /// @param _t Timestamp to query voting power
    /// @return Voting power
    function balanceOfNFTAt(uint256 _tokenId, uint256 _t) external view returns (uint256);

    /// @notice Calculate total voting power at current timestamp
    /// @return Total voting power at current timestamp
    function totalSupply() external view returns (uint256);

    /// @notice Calculate total voting power at a given timestamp
    /// @param _t Timestamp to query total voting power
    /// @return Total voting power at given timestamp
    function totalSupplyAt(uint256 _t) external view returns (uint256);

    /*///////////////////////////////////////////////////////////////
                            GAUGE VOTING LOGIC
    //////////////////////////////////////////////////////////////*/

    /// @notice See if a queried _tokenId has actively voted
    /// @param _tokenId .
    /// @return True if voted, else false
    function voted(uint256 _tokenId) external view returns (bool);

    /// @notice Set the global state voter and distributor
    /// @dev This is only called once, at setup
    function setVoterAndDistributor(address _voter, address _distributor) external;

    /// @notice Set `voted` for _tokenId to true or false
    /// @dev Only callable by voter
    /// @param _tokenId .
    /// @param _voted .
    function voting(uint256 _tokenId, bool _voted) external;

    /*///////////////////////////////////////////////////////////////
                            DAO VOTING STORAGE
    //////////////////////////////////////////////////////////////*/

    /// @notice The number of checkpoints for each tokenId
    function numCheckpoints(uint256 tokenId) external view returns (uint48);

    /// @notice A record of states for signing / validating signatures
    function nonces(address account) external view returns (uint256);

    /// @inheritdoc IVotes
    function delegates(uint256 delegator) external view returns (uint256);

    /// @notice A record of delegated token checkpoints for each account, by index
    /// @param tokenId .
    /// @param index .
    /// @return Checkpoint
    function checkpoints(uint256 tokenId, uint48 index) external view returns (Checkpoint memory);

    /// @inheritdoc IVotes
    function getPastVotes(address account, uint256 tokenId, uint256 timestamp) external view returns (uint256);

    /// @inheritdoc IVotes
    function getPastTotalSupply(uint256 timestamp) external view returns (uint256);

    /*///////////////////////////////////////////////////////////////
                             DAO VOTING LOGIC
    //////////////////////////////////////////////////////////////*/

    /// @inheritdoc IVotes
    function delegate(uint256 delegator, uint256 delegatee) external;

    /// @inheritdoc IVotes
    function delegateBySig(
        uint256 delegator,
        uint256 delegatee,
        uint256 nonce,
        uint256 expiry,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;
}

File 6 of 22 : Math.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    enum Rounding {
        Down, // Toward negative infinity
        Up, // Toward infinity
        Zero // Toward zero
    }

    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds up instead
     * of rounding down.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

    /**
     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
     * with further edits by Uniswap Labs also under MIT license.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
        unchecked {
            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2^256 + prod0.
            uint256 prod0; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod0 := mul(x, y)
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            require(denominator > prod1, "Math: mulDiv overflow");

            ///////////////////////////////////////////////
            // 512 by 256 division.
            ///////////////////////////////////////////////

            // Make division exact by subtracting the remainder from [prod1 prod0].
            uint256 remainder;
            assembly {
                // Compute remainder using mulmod.
                remainder := mulmod(x, y, denominator)

                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
            // See https://cs.stackexchange.com/q/138556/92363.

            // Does not overflow because the denominator cannot be zero at this stage in the function.
            uint256 twos = denominator & (~denominator + 1);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

                // Divide [prod1 prod0] by twos.
                prod0 := div(prod0, twos)

                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                twos := add(div(sub(0, twos), twos), 1)
            }

            // Shift in bits from prod1 into prod0.
            prod0 |= prod1 * twos;

            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv = 1 mod 2^4.
            uint256 inverse = (3 * denominator) ^ 2;

            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
            // in modular arithmetic, doubling the correct bits in each step.
            inverse *= 2 - denominator * inverse; // inverse mod 2^8
            inverse *= 2 - denominator * inverse; // inverse mod 2^16
            inverse *= 2 - denominator * inverse; // inverse mod 2^32
            inverse *= 2 - denominator * inverse; // inverse mod 2^64
            inverse *= 2 - denominator * inverse; // inverse mod 2^128
            inverse *= 2 - denominator * inverse; // inverse mod 2^256

            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
            // is no longer required.
            result = prod0 * inverse;
            return result;
        }
    }

    /**
     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
        uint256 result = mulDiv(x, y, denominator);
        if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
            result += 1;
        }
        return result;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
     *
     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        //
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
        // into the expected uint128 result.
        unchecked {
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            return min(result, a / result);
        }
    }

    /**
     * @notice Calculates sqrt(a), following the selected rounding direction.
     */
    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = sqrt(a);
            return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 128;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 64;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 32;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 16;
            }
            if (value >> 8 > 0) {
                value >>= 8;
                result += 8;
            }
            if (value >> 4 > 0) {
                value >>= 4;
                result += 4;
            }
            if (value >> 2 > 0) {
                value >>= 2;
                result += 2;
            }
            if (value >> 1 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log2(value);
            return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >= 10 ** 64) {
                value /= 10 ** 64;
                result += 64;
            }
            if (value >= 10 ** 32) {
                value /= 10 ** 32;
                result += 32;
            }
            if (value >= 10 ** 16) {
                value /= 10 ** 16;
                result += 16;
            }
            if (value >= 10 ** 8) {
                value /= 10 ** 8;
                result += 8;
            }
            if (value >= 10 ** 4) {
                value /= 10 ** 4;
                result += 4;
            }
            if (value >= 10 ** 2) {
                value /= 10 ** 2;
                result += 2;
            }
            if (value >= 10 ** 1) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log10(value);
            return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256, rounded down, of a positive value.
     * Returns 0 if given 0.
     *
     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
     */
    function log256(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 16;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 8;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 4;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 2;
            }
            if (value >> 8 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 256, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);
        }
    }
}

File 7 of 22 : IReward.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IReward {
    error InvalidReward();
    error NotAuthorized();
    error NotGauge();
    error NotEscrowToken();
    error NotSingleToken();
    error NotVotingEscrow();
    error NotWhitelisted();
    error ZeroAmount();

    event Deposit(address indexed from, uint256 indexed tokenId, uint256 amount);
    event Withdraw(address indexed from, uint256 indexed tokenId, uint256 amount);
    event NotifyReward(address indexed from, address indexed reward, uint256 indexed epoch, uint256 amount);
    event ClaimRewards(address indexed from, address indexed reward, uint256 amount);

    /// @notice Deposit an amount into the rewards contract to earn future rewards associated to a veNFT
    /// @dev Internal notation used as only callable internally by `authorized`.
    /// @param amount   Amount deposited for the veNFT
    /// @param tokenId  Unique identifier of the veNFT
    function _deposit(uint256 amount, uint256 tokenId) external;

    /// @notice Withdraw an amount from the rewards contract associated to a veNFT
    /// @dev Internal notation used as only callable internally by `authorized`.
    /// @param amount   Amount deposited for the veNFT
    /// @param tokenId  Unique identifier of the veNFT
    function _withdraw(uint256 amount, uint256 tokenId) external;

    /// @notice Claim the rewards earned by a veNFT staker
    /// @param tokenId  Unique identifier of the veNFT
    /// @param tokens   Array of tokens to claim rewards of
    function getReward(uint256 tokenId, address[] memory tokens) external;

    /// @notice Add rewards for stakers to earn
    /// @param token    Address of token to reward
    /// @param amount   Amount of token to transfer to rewards
    function notifyRewardAmount(address token, uint256 amount) external;

    /// @notice Determine the prior balance for an account as of a block number
    /// @dev Block number must be a finalized block or else this function will revert to prevent misinformation.
    /// @param tokenId      The token of the NFT to check
    /// @param timestamp    The timestamp to get the balance at
    /// @return The balance the account had as of the given block
    function getPriorBalanceIndex(uint256 tokenId, uint256 timestamp) external view returns (uint256);

    /// @notice Determine the prior index of supply staked by of a timestamp
    /// @dev Timestamp must be <= current timestamp
    /// @param timestamp The timestamp to get the index at
    /// @return Index of supply checkpoint
    function getPriorSupplyIndex(uint256 timestamp) external view returns (uint256);

    /// @notice Calculate how much in rewards are earned for a specific token and veNFT
    /// @param token Address of token to fetch rewards of
    /// @param tokenId Unique identifier of the veNFT
    /// @return Amount of token earned in rewards
    function earned(address token, uint256 tokenId) external view returns (uint256);
}

File 8 of 22 : SafeERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/IERC20Permit.sol";
import "../../../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;

    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(IERC20 token, address spender, uint256 value) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    function safePermit(
        IERC20Permit token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
    }

    /**
     * @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, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

File 9 of 22 : IERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

File 10 of 22 : ERC2771Context.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (metatx/ERC2771Context.sol)

pragma solidity ^0.8.9;

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

/**
 * @dev Context variant with ERC2771 support.
 */
abstract contract ERC2771Context is Context {
    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable
    address private immutable _trustedForwarder;

    /// @custom:oz-upgrades-unsafe-allow constructor
    constructor(address trustedForwarder) {
        _trustedForwarder = trustedForwarder;
    }

    function isTrustedForwarder(address forwarder) public view virtual returns (bool) {
        return forwarder == _trustedForwarder;
    }

    function _msgSender() internal view virtual override returns (address sender) {
        if (isTrustedForwarder(msg.sender)) {
            // The assembly code is more direct than the Solidity version using `abi.decode`.
            /// @solidity memory-safe-assembly
            assembly {
                sender := shr(96, calldataload(sub(calldatasize(), 20)))
            }
        } else {
            return super._msgSender();
        }
    }

    function _msgData() internal view virtual override returns (bytes calldata) {
        if (isTrustedForwarder(msg.sender)) {
            return msg.data[:msg.data.length - 20];
        } else {
            return super._msgData();
        }
    }
}

File 11 of 22 : ReentrancyGuard.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be _NOT_ENTERED
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;
    }

    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == _ENTERED;
    }
}

File 12 of 22 : VelodromeTimeLibrary.sol
// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.19;

library VelodromeTimeLibrary {
    uint256 internal constant WEEK = 7 days;

    /// @dev Returns start of epoch based on current timestamp
    function epochStart(uint256 timestamp) internal pure returns (uint256) {
        unchecked {
            return timestamp - (timestamp % WEEK);
        }
    }

    /// @dev Returns start of next epoch / end of current epoch
    function epochNext(uint256 timestamp) internal pure returns (uint256) {
        unchecked {
            return timestamp - (timestamp % WEEK) + WEEK;
        }
    }

    /// @dev Returns start of voting window
    function epochVoteStart(uint256 timestamp) internal pure returns (uint256) {
        unchecked {
            return timestamp - (timestamp % WEEK) + 1 hours;
        }
    }

    /// @dev Returns end of voting window / beginning of unrestricted voting window
    function epochVoteEnd(uint256 timestamp) internal pure returns (uint256) {
        unchecked {
            return timestamp - (timestamp % WEEK) + WEEK - 1 hours;
        }
    }
}

File 13 of 22 : IERC721Metadata.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Metadata is IERC721 {
    /**
     * @dev Returns the token collection name.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the token collection symbol.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    function tokenURI(uint256 tokenId) external view returns (string memory);
}

File 14 of 22 : IERC4906.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./IERC165.sol";
import "./IERC721.sol";

/// @title EIP-721 Metadata Update Extension
interface IERC4906 is IERC165, IERC721 {
    /// @dev This event emits when the metadata of a token is changed.
    /// So that the third-party platforms such as NFT market could
    /// timely update the images and related attributes of the NFT.
    event MetadataUpdate(uint256 _tokenId);

    /// @dev This event emits when the metadata of a range of tokens is changed.
    /// So that the third-party platforms such as NFT market could
    /// timely update the images and related attributes of the NFTs.
    event BatchMetadataUpdate(uint256 _fromTokenId, uint256 _toTokenId);
}

File 15 of 22 : IVotes.sol
// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.0;

/// Modified IVotes interface for tokenId based voting
interface IVotes {
    /**
     * @dev Emitted when an account changes their delegate.
     */
    event DelegateChanged(address indexed delegator, uint256 indexed fromDelegate, uint256 indexed toDelegate);

    /**
     * @dev Emitted when a token transfer or delegate change results in changes to a delegate's number of votes.
     */
    event DelegateVotesChanged(address indexed delegate, uint256 previousBalance, uint256 newBalance);

    /**
     * @dev Returns the amount of votes that `tokenId` had at a specific moment in the past.
     *      If the account passed in is not the owner, returns 0.
     */
    function getPastVotes(address account, uint256 tokenId, uint256 timepoint) external view returns (uint256);

    /**
     * @dev Returns the total supply of votes available at a specific moment in the past. If the `clock()` is
     * configured to use block numbers, this will return the value the end of the corresponding block.
     *
     * NOTE: This value is the sum of all available votes, which is not necessarily the sum of all delegated votes.
     * Votes that have not been delegated are still part of total supply, even though they would not participate in a
     * vote.
     */
    function getPastTotalSupply(uint256 timepoint) external view returns (uint256);

    /**
     * @dev Returns the delegate that `tokenId` has chosen. Can never be equal to the delegator's `tokenId`.
     *      Returns 0 if not delegated.
     */
    function delegates(uint256 tokenId) external view returns (uint256);

    /**
     * @dev Delegates votes from the sender to `delegatee`.
     */
    function delegate(uint256 delegator, uint256 delegatee) external;

    /**
     * @dev Delegates votes from `delegator` to `delegatee`. Signer must own `delegator`.
     */
    function delegateBySig(
        uint256 delegator,
        uint256 delegatee,
        uint256 nonce,
        uint256 expiry,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;
}

File 16 of 22 : IERC20Permit.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @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.
 */
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].
     */
    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 17 of 22 : Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @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/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @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, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * 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.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @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`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) 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(errorMessage);
        }
    }
}

File 18 of 22 : Context.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

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

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

File 19 of 22 : IERC721.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

import "../../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 caller.
     *
     * 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 22 : IERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC165.sol)

pragma solidity ^0.8.0;

import "../utils/introspection/IERC165.sol";

File 21 of 22 : IERC721.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC721.sol)

pragma solidity ^0.8.0;

import "../token/ERC721/IERC721.sol";

File 22 of 22 : IERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @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": [
    "@opengsn/=lib/gsn/packages/",
    "@openzeppelin/=lib/openzeppelin-contracts/",
    "@uniswap/v3-core/=lib/v3-core/",
    "concentrated-liquidity/=lib/concentrated-liquidity/",
    "ds-test/=lib/ds-test/src/",
    "erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/",
    "eth-gas-reporter/=node_modules/eth-gas-reporter/",
    "forge-std/=lib/forge-std/src/",
    "gsn/=lib/gsn/",
    "hardhat-deploy/=node_modules/hardhat-deploy/",
    "hardhat/=node_modules/hardhat/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/",
    "utils/=test/utils/",
    "v3-core/=lib/v3-core/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "paris",
  "libraries": {}
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"_forwarder","type":"address"},{"internalType":"address","name":"_voter","type":"address"},{"internalType":"address[]","name":"_rewards","type":"address[]"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"InvalidReward","type":"error"},{"inputs":[],"name":"NotAuthorized","type":"error"},{"inputs":[],"name":"NotEscrowToken","type":"error"},{"inputs":[],"name":"NotGauge","type":"error"},{"inputs":[],"name":"NotSingleToken","type":"error"},{"inputs":[],"name":"NotVotingEscrow","type":"error"},{"inputs":[],"name":"NotWhitelisted","type":"error"},{"inputs":[],"name":"ZeroAmount","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"reward","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"ClaimRewards","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Deposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"reward","type":"address"},{"indexed":true,"internalType":"uint256","name":"epoch","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"NotifyReward","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Withdraw","type":"event"},{"inputs":[],"name":"DURATION","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"_deposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"_withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"authorized","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"checkpoints","outputs":[{"internalType":"uint256","name":"timestamp","type":"uint256"},{"internalType":"uint256","name":"balanceOf","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"earned","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"getPriorBalanceIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"getPriorSupplyIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"address[]","name":"tokens","type":"address[]"}],"name":"getReward","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"isReward","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"forwarder","type":"address"}],"name":"isTrustedForwarder","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"lastEarn","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"notifyRewardAmount","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"numCheckpoints","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"rewards","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rewardsListLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"supplyCheckpoints","outputs":[{"internalType":"uint256","name":"timestamp","type":"uint256"},{"internalType":"uint256","name":"supply","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"supplyNumCheckpoints","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"tokenRewardsPerEpoch","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"ve","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"voter","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

Deployed Bytecode

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

Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
Loading
Loading
Make sure to use the "Vote Down" button for any spammy posts, and the "Vote Up" for interesting conversations.