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// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.13;

import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/access/AccessControl.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";

import {VotingErrors} from "./libraries/VotingErrors.sol";
import {IVEStella} from "./interfaces/IVEStella.sol";
import {IIncentiveManager} from "./interfaces/IIncentiveManager.sol";
import {IRewarder} from "./interfaces/IRewarder.sol";
import {IIncentiveManagerFactory} from "./interfaces/IIncentiveManagerFactory.sol";
import {IMinter} from "./interfaces/IMinter.sol";
import {IRewardRegistry} from "./interfaces/IRewardRegistry.sol";
import {IncentiveManager} from "./rewards/IncentiveManager.sol";
import {IWGLMR} from "./interfaces/IWGLMR.sol";
import {TimeLibrary} from "./libraries/Timelibrary.sol";

contract Voting is ReentrancyGuard, AccessControl {
    using SafeERC20 for IERC20;

    bytes32 public constant ADMIN_ROLE = keccak256("ADMIN_ROLE");
    bytes32 public constant EMERGENCY_COUNCIL_ROLE = keccak256("EMERGENCY_COUNCIL_ROLE");

    IVEStella public veStellaToken;

    uint256 public MAX_VOTES_PER_EPOCH = 30;
    uint256 public totalVotes; // Total votes across all pools
    uint256 public poolCount; // Total number of pools
    uint256 public epochDuration = 1 weeks;
    uint256 public lastEpochTime;
    uint256 public COOL_DOWN_PERIOD = 1 hours;
    uint256 public processedPools;
    uint256 public startOfVoteEpoch = 1751500800;

    address public wrappedGLMR;
    address public rewardRegistryAddress;
    address public incentiveManagerFactory;
    address public minter;

    bool public emergencyPaused = false;

    struct Pool {
        uint256 totalVotes;
        bool isRegistered;
        address feeDistributor;
        address bribeDistributor;
    }

    struct VoteCheckpoint {
        uint256 totalVotes; // Total votes in a particular checkpoint (epoch)
        mapping(address => uint256) poolVotes;
        uint256 epoch;
        bool isVoting;
        address[] pools;
    }

    mapping(address => Pool) public pools; // poolAddress => Pool
    mapping(address => bool) public isAlive;
    mapping(uint256 => VoteCheckpoint) public nftVoteData; // Nft id to voteCHeckpoint

    // for distribute rewards
    mapping(uint256 => bool) public epochRewardDistributed;

    address[] public poolAddresses;

    address[] public rewardTokens;

    mapping(address => bool) public isRewardToken; // Tracking if a token is in use
    mapping(address => uint256) public epochRewards; // Reward allocated per epoch per token

    mapping(address => bool) public bribeWhiteListedRewardToken;
    address[] public bribeWhiteListedRewardTokenList;

    event VoteCast(uint256 indexed voterNft, address[] poolIds, uint256[] weights);
    event RewardsDistributed(uint256 epoch);
    event RewardAllocated(address poolId, address token, uint256 reward);
    event RewardNotified(address[] tokens, uint256[] amounts);
    event AddWhitelistedBribeToken(address token);
    event RemoveWhitelistedBribeToken(address token);

    event RewardTokenAdded(address token);
    event RewardTokenRemoved(address token);
    event PoolRegistered(address poolAddress, address feeDistributor, address bribe);
    event PoolKilled(address poolAddress);
    event PoolRevived(address poolAddress);
    event MaxVotesPerEpochUpdated(uint256 _perEpoch);
    event CoolDownPeriodUpdated(uint256 _newCoolDownPeriod);

    modifier onlyDuringEpoch(uint256 _nftId) {
        uint256 currentEpoch = getCurrentEpoch();
        VoteCheckpoint storage voteData = nftVoteData[_nftId];
        if (voteData.epoch >= currentEpoch) {
            revert VotingErrors.AlreadyVoted();
        }

        // uint256 nextEpochStartTime = (lastEpochTime + 1) * epochDuration;
        // if (
        //     block.timestamp >= nextEpochStartTime - COOL_DOWN_PERIOD
        //         && block.timestamp <= nextEpochStartTime + COOL_DOWN_PERIOD
        // )
        if (
            block.timestamp <= TimeLibrary.epochStart(block.timestamp) + COOL_DOWN_PERIOD
                || block.timestamp >= TimeLibrary.epochNext(block.timestamp) - COOL_DOWN_PERIOD
        ) {
            revert VotingErrors.VotingInCoolDown();
        }
        _;
    }

    modifier ownerOrEscrow(uint256 _tokenId) {
        if (!veStellaToken.isApprovedOrOwner(msg.sender, _tokenId)) {
            revert VotingErrors.OnlyOwnerOrEscrow();
        }
        _;
    }

    modifier whenNotPaused() {
        require(!emergencyPaused, "Contract paused");
        _;
    }

    constructor(
        address _veStellaToken,
        address _WGLMR,
        address _rewardRegistryAddress,
        address _incentiveManagerFactory,
        address _minter
    ) {
        veStellaToken = IVEStella(_veStellaToken);
        lastEpochTime = getCurrentEpoch();
        wrappedGLMR = _WGLMR;
        rewardRegistryAddress = _rewardRegistryAddress;
        incentiveManagerFactory = _incentiveManagerFactory;
        minter = _minter;
        _setupRole(DEFAULT_ADMIN_ROLE, msg.sender);
        _setupRole(EMERGENCY_COUNCIL_ROLE, msg.sender);
        _setupRole(ADMIN_ROLE, msg.sender);
    }

    function setIncentiveManagerFactory(address _incentiveManagerFactory) external onlyRole(ADMIN_ROLE) {
        incentiveManagerFactory = _incentiveManagerFactory;
    }

    function togglePause(bool _toggle) external onlyRole(ADMIN_ROLE) {
        emergencyPaused = _toggle;
    }

    function addRewardToken(address _token) external onlyRole(ADMIN_ROLE) {
        if (isRewardToken[_token]) {
            revert VotingErrors.TokenAlreadyAdded();
        }
        rewardTokens.push(_token);
        isRewardToken[_token] = true;
        emit RewardTokenAdded(_token);
    }

    function setStartOfVoteEpoch(uint256 _startOfVoteEpoch) external onlyRole(ADMIN_ROLE) {
        startOfVoteEpoch = _startOfVoteEpoch;
    }

    function addWhitelistedBribeToken(address _token) external onlyRole(ADMIN_ROLE) {
        if (bribeWhiteListedRewardToken[_token]) {
            revert VotingErrors.TokenAlreadyAdded();
        }
        bribeWhiteListedRewardToken[_token] = true;
        bribeWhiteListedRewardTokenList.push(_token);
        emit AddWhitelistedBribeToken(_token);
    }

    function removeWhitelistedBribeToken(address _token) external onlyRole(ADMIN_ROLE) {
        if (!bribeWhiteListedRewardToken[_token]) {
            revert VotingErrors.TokenNotInList();
        }
        bribeWhiteListedRewardToken[_token] = false;

        for (uint256 i = 0; i < bribeWhiteListedRewardTokenList.length; i++) {
            if (bribeWhiteListedRewardTokenList[i] == _token) {
                bribeWhiteListedRewardTokenList[i] =
                    bribeWhiteListedRewardTokenList[bribeWhiteListedRewardTokenList.length - 1];
                bribeWhiteListedRewardTokenList.pop();
                break;
            }
        }
        emit RemoveWhitelistedBribeToken(_token);
    }

    function removeRewardToken(address _token) external onlyRole(ADMIN_ROLE) {
        if (!isRewardToken[_token]) {
            revert VotingErrors.TokenNotInList();
        }
        isRewardToken[_token] = false;

        for (uint256 i = 0; i < rewardTokens.length; i++) {
            if (rewardTokens[i] == _token) {
                rewardTokens[i] = rewardTokens[rewardTokens.length - 1];
                rewardTokens.pop();
                break;
            }
        }

        emit RewardTokenRemoved(_token);
    }

    function setEpochRewards(address[] calldata _tokens, uint256[] calldata _rewards) external onlyRole(ADMIN_ROLE) {
        if (_tokens.length != _rewards.length) {
            revert VotingErrors.ArrayLengthMismatch();
        }
        for (uint256 i = 0; i < _tokens.length; i++) {
            if (!isRewardToken[_tokens[i]]) {
                revert VotingErrors.TokenNotAdded();
            }
            epochRewards[_tokens[i]] = _rewards[i];
        }
    }

    function setCoolDownPeriod(uint256 _coolDownPeriod) external onlyRole(ADMIN_ROLE) {
        COOL_DOWN_PERIOD = _coolDownPeriod;
        emit CoolDownPeriodUpdated(_coolDownPeriod);
    }

    function notifyRewardAmount(address[] calldata _tokens, uint256[] calldata _amounts)
        external
        whenNotPaused
        nonReentrant
        onlyRole(ADMIN_ROLE)
    {
        if (_tokens.length != _amounts.length) {
            revert VotingErrors.ArrayLengthMismatch();
        }
        for (uint256 i = 0; i < _tokens.length; i++) {
            if (!isRewardToken[_tokens[i]]) {
                revert VotingErrors.TokenNotAdded();
            }
            if (_amounts[i] <= 0) {
                revert VotingErrors.RewardAmountZero();
            }

            IERC20(_tokens[i]).transferFrom(msg.sender, address(this), _amounts[i]);
        }

        emit RewardNotified(_tokens, _amounts);
    }

    function killPool(address poolAddress) external onlyRole(EMERGENCY_COUNCIL_ROLE) {
        if (!isAlive[poolAddress]) {
            revert VotingErrors.PoolAlreadyKilled();
        }
        isAlive[poolAddress] = false;
        emit PoolKilled(poolAddress);
    }

    function revivePool(address poolAddress) external onlyRole(EMERGENCY_COUNCIL_ROLE) {
        if (isAlive[poolAddress]) {
            revert VotingErrors.PoolAlreadyActive();
        }
        isAlive[poolAddress] = true;
        emit PoolRevived(poolAddress);
    }

    function registerPool(address poolAddress) external onlyRole(ADMIN_ROLE) {
        if (pools[poolAddress].isRegistered) {
            revert VotingErrors.PoolAlreadyRegistered();
        }
        address newFeeDistributor = IIncentiveManagerFactory(incentiveManagerFactory).createIncentiveManager(
            address(this), address(this), IIncentiveManagerFactory.RewardType.FEE_SHARE, msg.sender
        );

        address newBribe = IIncentiveManagerFactory(incentiveManagerFactory).createIncentiveManager(
            address(this), address(this), IIncentiveManagerFactory.RewardType.BRIBE, msg.sender
        );

        pools[poolAddress] =
            Pool({totalVotes: 0, isRegistered: true, feeDistributor: newFeeDistributor, bribeDistributor: newBribe});

        poolAddresses.push(poolAddress);
        poolCount++;

        isAlive[poolAddress] = true;

        emit PoolRegistered(poolAddress, newFeeDistributor, newBribe);
    }

    function vote(uint256 nftId, address[] memory _poolAddresses, uint256[] memory weights)
        public
        onlyDuringEpoch(nftId)
        whenNotPaused
        nonReentrant
    {
        if (block.timestamp < startOfVoteEpoch) {
            revert VotingErrors.VotingNotStarted();
        }
        uint256 currentEpoch = getCurrentEpoch();

        // Check: Ensure the caller is approved or owns the NFT
        if (!veStellaToken.isApprovedOrOwner(msg.sender, nftId)) {
            revert VotingErrors.NotApprovedOrOwner();
        }

        // Check: Ensure arrays are of equal length
        if (_poolAddresses.length != weights.length) {
            revert VotingErrors.ArrayLengthMismatch();
        }

        // Check: Ensure maximum votes per epoch is not exceeded
        if (_poolAddresses.length > MAX_VOTES_PER_EPOCH) {
            revert VotingErrors.ExceedingMaxVotes();
        }

        // Check: Ensure NFT has voting weight
        uint256 voterWeight = veStellaToken.balanceOfNFT(nftId);
        if (voterWeight <= 0) {
            revert VotingErrors.NoVoterWeight();
        }

        // Check: Validate pool state and calculate total weight
        uint256 totalWeights = 0;
        for (uint256 i = 0; i < _poolAddresses.length; i++) {
            if (!isAlive[_poolAddresses[i]]) {
                revert VotingErrors.PoolKilled();
            }
            if (weights[i] <= 0) {
                revert VotingErrors.WeightCannotBeZero();
            }
            totalWeights += weights[i];
        }

        nftVoteData[nftId].epoch = currentEpoch;

        _vote(nftId, _poolAddresses, weights, voterWeight, totalWeights);
    }

    function _vote(
        uint256 nftId,
        address[] memory _poolAddresses,
        uint256[] memory weights,
        uint256 voterWeight,
        uint256 totalWeights
    ) internal {
        VoteCheckpoint storage voteData = nftVoteData[nftId];
        _reset(nftId);
        // Cast votes for each pool
        uint256 currentTotal = totalVotes;
        for (uint256 i = 0; i < _poolAddresses.length; i++) {
            address poolAddress = _poolAddresses[i];
            uint256 weight = (weights[i] * voterWeight) / totalWeights;

            // Record votes for fee and bribe distributors
            IIncentiveManager(pools[poolAddress].feeDistributor).recordVote(weight, nftId);
            IIncentiveManager(pools[poolAddress].bribeDistributor).recordVote(weight, nftId);

            pools[poolAddress].totalVotes += weight;

            voteData.poolVotes[poolAddress] += weight;
            totalVotes += weight;
        }

        voteData.isVoting = true;
        voteData.pools = _poolAddresses;
        voteData.totalVotes += (totalVotes - currentTotal);

        emit VoteCast(nftId, _poolAddresses, weights);
    }

    function distributeRewards(uint256 batchSize) external whenNotPaused onlyRole(ADMIN_ROLE) nonReentrant {
        if (getCurrentEpoch() <= lastEpochTime) {
            revert VotingErrors.EpochNotFinished();
        }

        if (!epochRewardDistributed[getCurrentEpoch() - 1]) {
            IMinter(minter).mintForEpoch();
            epochRewardDistributed[getCurrentEpoch() - 1] = true;
        }
        uint256 currentTotalVotes = totalVotes;
        uint256 endIndex = processedPools + batchSize;

        if (endIndex > poolAddresses.length) {
            endIndex = poolAddresses.length;
        }

        for (uint256 i = processedPools; i < endIndex; i++) {
            address poolAddress = poolAddresses[i];
            uint256 poolTotalVotes = pools[poolAddress].totalVotes;

            if (poolTotalVotes == 0 || !isAlive[poolAddress]) {
                continue;
            }

            uint256 poolPercentage = (poolTotalVotes * 1e18) / currentTotalVotes;

            for (uint256 j = 0; j < rewardTokens.length; j++) {
                address token = rewardTokens[j];
                uint256 rewardAmount = (epochRewards[token] * poolPercentage) / 1e18;
                if (rewardAmount > 0) {
                    address rewarder = IRewardRegistry(rewardRegistryAddress).getRewarderByPool(poolAddress);
                    _addRewardsToOffchain(rewarder, IERC20(token), rewardAmount);
                    emit RewardAllocated(poolAddress, token, rewardAmount);
                }
            }
            pools[poolAddress].totalVotes = 0;
        }

        processedPools = endIndex;

        // If all pools have been processed, reset total votes and update epoch time
        if (processedPools >= poolAddresses.length) {
            
            totalVotes = 0;
            
            lastEpochTime = getCurrentEpoch();
            processedPools = 0; // Reset for the next epoch
            emit RewardsDistributed(lastEpochTime);
        }
    }

    function _addRewardsToOffchain(address rewarder, IERC20 token, uint256 tokenAmount) internal {
        require(rewarder != address(0), "Invalid rewarder address");

        uint32 startTimestamp = uint32(getCurrentEpoch()) * uint32(epochDuration);
        uint32 endTimestamp = startTimestamp + uint32(epochDuration);
        uint256 rewardPerSec = tokenAmount / (endTimestamp - startTimestamp);

        bool isNative = address(token) == address(wrappedGLMR);
        if (isNative) {
            IWGLMR(wrappedGLMR).withdraw(tokenAmount);
            require(address(this).balance >= tokenAmount, "Insufficient native token balance");
            IRewarder(rewarder).addRewardInfo{value: tokenAmount}(
                token, isNative, startTimestamp, endTimestamp, rewardPerSec
            );
        } else {
            token.safeApprove(rewarder, tokenAmount);
            require(token.allowance(address(this), rewarder) >= tokenAmount, "Approval failed");
            IRewarder(rewarder).addRewardInfo(token, isNative, startTimestamp, endTimestamp, rewardPerSec);
            token.safeApprove(rewarder, 0);
        }
    }

    function claimBribes(address[] memory _bribes, address[][] memory _tokens, uint256 _tokenId)
        external
        ownerOrEscrow(_tokenId)
        whenNotPaused
        nonReentrant
    {
        uint256 _length = _bribes.length;
        for (uint256 i = 0; i < _length; i++) {
            IIncentiveManager(_bribes[i]).getReward(msg.sender, _tokenId, _tokens[i]);
        }
    }

    function withdrawFromManagedNft(uint256 _tokenId) external whenNotPaused nonReentrant onlyDuringEpoch(_tokenId) {
        if (!veStellaToken.isApprovedOrOwner(msg.sender, _tokenId)) revert VotingErrors.NotApprovedOrOwner();

        uint256 managedTokenId = (veStellaToken.managedInfo(_tokenId)).mNFTId;

        veStellaToken.withdrawFromManagedNFT(_tokenId);

        uint256 weight = veStellaToken.balanceOfNFT(managedTokenId);

        if (weight == 0) {
            _reset(managedTokenId);
        } else {
            _poke(managedTokenId, weight);
        }
    }

    function depositIntoManagedNft(uint256 _tokenId, uint256 _managedTokenId)
        external
        whenNotPaused
        nonReentrant
        onlyDuringEpoch(_tokenId)
    {
        if (!veStellaToken.isApprovedOrOwner(msg.sender, _tokenId)) revert VotingErrors.NotApprovedOrOwner();
        if (veStellaToken.lockType(_tokenId) != IVEStella.LockType.NORMAL) revert VotingErrors.NotNormalNFT();

        veStellaToken.depositIntoManagedNFT(_tokenId, _managedTokenId);

        uint256 voterWeight = veStellaToken.balanceOfNFT(_managedTokenId);

        nftVoteData[_tokenId].epoch = getCurrentEpoch();

        _poke(_managedTokenId, voterWeight);
    }

    function _poke(uint256 _tokenId, uint256 _voterWeight) internal {
        VoteCheckpoint storage voteData = nftVoteData[_tokenId];
        // Retrieve pools and weights from the existing vote checkpoint
        address[] memory NftPoolAddresses = voteData.pools;
        uint256[] memory weights = new uint256[](NftPoolAddresses.length);

        // Calculate total weight of the existing votes

        uint256 totalWeights = 0;
        for (uint256 i = 0; i < NftPoolAddresses.length; i++) {
            weights[i] = voteData.poolVotes[NftPoolAddresses[i]];
            totalWeights += weights[i];
        }
        // Use _vote for the core voting logic, passing all necessary parameters
        _vote(_tokenId, NftPoolAddresses, weights, _voterWeight, totalWeights);
    }

    function claimFees(address[] memory _fees, address[][] memory _tokens, uint256 _tokenId)
        external
        ownerOrEscrow(_tokenId)
        whenNotPaused
        nonReentrant
    {
        uint256 _length = _fees.length;
        for (uint256 i = 0; i < _length; i++) {
            IIncentiveManager(_fees[i]).getReward(msg.sender, _tokenId, _tokens[i]);
        }
    }

    function reset(uint256 _tokenId) external whenNotPaused onlyDuringEpoch(_tokenId) ownerOrEscrow(_tokenId) nonReentrant {
        // Now call the internal function to perform the reset
        _reset(_tokenId);
    }

    function _reset(uint256 _tokenId) internal {
        VoteCheckpoint storage voteData = nftVoteData[_tokenId];
        

        bool isFromPreviousEpoch = voteData.epoch <= lastEpochTime;

        // Limit local variables and avoid repeated access of storage
        address[] memory localPoolAddresses = poolAddresses;
        for (uint256 i = 0; i < localPoolAddresses.length; i++) {
            address poolAddress = localPoolAddresses[i];
            uint256 poolVotes = voteData.poolVotes[poolAddress];

            if (poolVotes > 0) {
                // Cache `feeDistributor` and `bribeDistributor` to reduce stack usage
                address feeDistributor = pools[poolAddress].feeDistributor;
                address bribeDistributor = pools[poolAddress].bribeDistributor;

                IIncentiveManager(feeDistributor)._withdraw(poolVotes, _tokenId);
                IIncentiveManager(bribeDistributor)._withdraw(poolVotes, _tokenId);

                // If from previous epoch, pool votes were already reset to 0 during distribution
                if (!isFromPreviousEpoch) {
                    pools[poolAddress].totalVotes -= poolVotes;
                }
                voteData.poolVotes[poolAddress] = 0;
            }
        }

        // If from previous epoch, totalVotes was already reset to 0 during distribution
        if (!isFromPreviousEpoch) {
            totalVotes -= voteData.totalVotes;
        }

        voteData.totalVotes = 0;
        delete voteData.pools;
        voteData.isVoting = false;
    }

    function setMAXVOTESPEREPOCH(uint256 _maxVotesPerEpoch) external onlyRole(ADMIN_ROLE) {
        if (_maxVotesPerEpoch <= 0) {
            revert VotingErrors.InvalidVotes();
        }
        MAX_VOTES_PER_EPOCH = _maxVotesPerEpoch;
        emit MaxVotesPerEpochUpdated(_maxVotesPerEpoch);
    }

    function getPoolsVotedByNFTForEpoch(uint256 _nftId) external view returns (address[] memory) {
        return nftVoteData[_nftId].pools;
    }

    function getBribeWhiteListedRewardTokenList() external view returns (address[] memory) {
        return bribeWhiteListedRewardTokenList;
    }

    function getPoolAddresses() external view returns (address[] memory) {
        return poolAddresses;
    }

    function getRewardTokens() external view returns (address[] memory) {
        return rewardTokens;
    }

    function getPoolVotes(address poolAddress) external view returns (uint256) {
        return pools[poolAddress].totalVotes;
    }

    function getIsPoolRegistered(address poolAddress) external view returns (bool) {
        return pools[poolAddress].isRegistered;
    }

    function getVeStella() external view returns (address) {
        return address(veStellaToken);
    }

    function getCurrentEpoch() public view returns (uint256) {
        return (block.timestamp / epochDuration);
    }

    function voted(uint256 _tokenId) external view returns (bool) {
        return nftVoteData[_tokenId].isVoting;
    }

    function getPoolVotesForNFT(uint256 nftId, address pool) public view returns (uint256) {
        return nftVoteData[nftId].poolVotes[pool];
    }

    function getFeeDistributorForPool(address poolAddress) external view returns (address) {
        return pools[poolAddress].feeDistributor;
    }

    function recoverERC20(address token, uint256 amount) external onlyRole(ADMIN_ROLE) {
        IERC20(token).safeTransfer(msg.sender, amount);
    }

    function recoverNative(uint256 amount) external onlyRole(ADMIN_ROLE) {
        (bool success, ) = msg.sender.call{value: amount}("");
    }
    receive() external payable {}
}

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

pragma solidity ^0.8.0;

import "./IAccessControl.sol";
import "../utils/Context.sol";
import "../utils/Strings.sol";
import "../utils/introspection/ERC165.sol";

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```solidity
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```solidity
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it. We recommend using {AccessControlDefaultAdminRules}
 * to enforce additional security measures for this role.
 */
abstract contract AccessControl is Context, IAccessControl, ERC165 {
    struct RoleData {
        mapping(address => bool) members;
        bytes32 adminRole;
    }

    mapping(bytes32 => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with a standardized message including the required role.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     *
     * _Available since v4.1._
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role);
        _;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view virtual override returns (bool) {
        return _roles[role].members[account];
    }

    /**
     * @dev Revert with a standard message if `_msgSender()` is missing `role`.
     * Overriding this function changes the behavior of the {onlyRole} modifier.
     *
     * Format of the revert message is described in {_checkRole}.
     *
     * _Available since v4.6._
     */
    function _checkRole(bytes32 role) internal view virtual {
        _checkRole(role, _msgSender());
    }

    /**
     * @dev Revert with a standard message if `account` is missing `role`.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     */
    function _checkRole(bytes32 role, address account) internal view virtual {
        if (!hasRole(role, account)) {
            revert(
                string(
                    abi.encodePacked(
                        "AccessControl: account ",
                        Strings.toHexString(account),
                        " is missing role ",
                        Strings.toHexString(uint256(role), 32)
                    )
                )
            );
        }
    }

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) {
        return _roles[role].adminRole;
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleGranted} event.
     */
    function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _grantRole(role, account);
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleRevoked} event.
     */
    function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _revokeRole(role, account);
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been revoked `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     *
     * May emit a {RoleRevoked} event.
     */
    function renounceRole(bytes32 role, address account) public virtual override {
        require(account == _msgSender(), "AccessControl: can only renounce roles for self");

        _revokeRole(role, account);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event. Note that unlike {grantRole}, this function doesn't perform any
     * checks on the calling account.
     *
     * May emit a {RoleGranted} event.
     *
     * [WARNING]
     * ====
     * This function should only be called from the constructor when setting
     * up the initial roles for the system.
     *
     * Using this function in any other way is effectively circumventing the admin
     * system imposed by {AccessControl}.
     * ====
     *
     * NOTE: This function is deprecated in favor of {_grantRole}.
     */
    function _setupRole(bytes32 role, address account) internal virtual {
        _grantRole(role, account);
    }

    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        bytes32 previousAdminRole = getRoleAdmin(role);
        _roles[role].adminRole = adminRole;
        emit RoleAdminChanged(role, previousAdminRole, adminRole);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleGranted} event.
     */
    function _grantRole(bytes32 role, address account) internal virtual {
        if (!hasRole(role, account)) {
            _roles[role].members[account] = true;
            emit RoleGranted(role, account, _msgSender());
        }
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleRevoked} event.
     */
    function _revokeRole(bytes32 role, address account) internal virtual {
        if (hasRole(role, account)) {
            _roles[role].members[account] = false;
            emit RoleRevoked(role, account, _msgSender());
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol)

pragma solidity ^0.8.0;

/**
 * @dev External interface of AccessControl declared to support ERC165 detection.
 */
interface IAccessControl {
    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     *
     * _Available since v3.1._
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call, an admin role
     * bearer except when using {AccessControl-_setupRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) external view returns (bool);

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {AccessControl-_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) external view returns (bytes32);

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) external;
}

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.3) (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;

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

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

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

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    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");
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
        }
    }

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

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

    /**
     * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
     * Revert on invalid signature.
     */
    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");
        require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation 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).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (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/v0.8.0/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);
        }
    }
}

// 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;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;

import "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

// 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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (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) {
                // Solidity will revert if denominator == 0, unlike the div opcode on its own.
                // The surrounding unchecked block does not change this fact.
                // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
                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);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard signed math utilities missing in the Solidity language.
 */
library SignedMath {
    /**
     * @dev Returns the largest of two signed numbers.
     */
    function max(int256 a, int256 b) internal pure returns (int256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two signed numbers.
     */
    function min(int256 a, int256 b) internal pure returns (int256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two signed numbers without overflow.
     * The result is rounded towards zero.
     */
    function average(int256 a, int256 b) internal pure returns (int256) {
        // Formula from the book "Hacker's Delight"
        int256 x = (a & b) + ((a ^ b) >> 1);
        return x + (int256(uint256(x) >> 255) & (a ^ b));
    }

    /**
     * @dev Returns the absolute unsigned value of a signed value.
     */
    function abs(int256 n) internal pure returns (uint256) {
        unchecked {
            // must be unchecked in order to support `n = type(int256).min`
            return uint256(n >= 0 ? n : -n);
        }
    }
}

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

pragma solidity ^0.8.0;

import "./math/Math.sol";
import "./math/SignedMath.sol";

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _SYMBOLS = "0123456789abcdef";
    uint8 private constant _ADDRESS_LENGTH = 20;

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        unchecked {
            uint256 length = Math.log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            /// @solidity memory-safe-assembly
            assembly {
                ptr := add(buffer, add(32, length))
            }
            while (true) {
                ptr--;
                /// @solidity memory-safe-assembly
                assembly {
                    mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }

    /**
     * @dev Converts a `int256` to its ASCII `string` decimal representation.
     */
    function toString(int256 value) internal pure returns (string memory) {
        return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMath.abs(value))));
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        unchecked {
            return toHexString(value, Math.log256(value) + 1);
        }
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }

    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
     */
    function toHexString(address addr) internal pure returns (string memory) {
        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
    }

    /**
     * @dev Returns true if the two strings are equal.
     */
    function equal(string memory a, string memory b) internal pure returns (bool) {
        return keccak256(bytes(a)) == keccak256(bytes(b));
    }
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.13;

interface IIncentiveManager {
    function recordVote(uint256 amount, uint256 tokenId) external;
    function getReward(address recipient, uint256 tokenId, address[] memory tokens) external;
    function _withdraw(uint256 amount, uint256 tokenId) external;
    function calculateReward(address token, uint256 tokenId) external view returns (uint256);
    function notifyRewardAmount(address token, uint256 amount) external;
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.13;

interface IIncentiveManagerFactory {
    
    enum RewardType {
        BRIBE,
        FEE_SHARE,
        LOCKED_REWARDS,
        FREE_REWARDS
    }

    function createIncentiveManager(address _votingContract, address deployer, RewardType _rewardType, address _admin) external returns (address configDistributor);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface IMinter {
    function setWeekly(uint256 _weekly) external;
    function mintForEpoch() external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

interface IRewarder {
    function initialize(address _registry) external;
    function addRewardInfo(
        IERC20 token,
        bool _isNative,
        uint32 _startTimestamp,
        uint32 _endTimestamp,
        uint256 _rewardPerSec
    ) external payable;
    function getRoundedTimestamp(uint32 timestamp) external view returns (uint32);
    function getRewarderByPool(address pool) external view returns (address);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;

interface IRewardRegistry {
    function getRewarderByPool(address poolAddress) external view returns (address);
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.13;

interface IVEStella {
    enum LockType {
        NORMAL,
        MANAGED,
        MNFT
    }
    struct Checkpoint {
        uint256 fromBlock;
        uint256 votes;
    }

    struct LockedBalance {
        int128 amount;
        uint256 end;
        bool isPermanent;
    }
    struct ManagedNFT {
        address lockedReward;
        address freeReward;
    }

    struct ManagedInfo {
        uint256 mNFTId;
        uint256 weight;
    }

    function managedNFTRewards(uint256 managedTokenId)
        external
        view
        returns (address lockedReward, address freeReward);

    function managedInfo(uint256 tokenId) external view returns (ManagedInfo memory);
    function balanceOf(address account) external view returns (uint256);
    function balanceOfNFT(uint256 id) external view returns (uint256);
    function balanceOfNFTAt(uint256 id, uint256 timestamp) external view returns (uint256);
    function totalSupply() external view returns (uint256);
    function totalSupplyAt(uint256 timestamp) external view returns (uint256);
    function ownerOf(uint256 tokenId) external view returns (address);
    function isApprovedOrOwner(address _spender, uint256 _tokenId) external view returns (bool);
    function depositIntoManagedNFT(uint256 _tokenId, uint256 _managedTokenId) external;
    function withdrawFromManagedNFT(uint256 _tokenId) external;
    function lockType(uint256 _tokenId) external view returns (LockType);
    function increaseAmount(uint256 _tokenId, uint256 _value) external;

    function token() external view returns (address);
    function distributor() external view returns (address);
    function locked(uint256 _tokenId) external view returns (int128 amount, uint256 end, bool isPermanent);
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.13;

interface IVoting {
    // View struct without mapping for external calls
    struct VoteCheckpoint {
        uint256 totalVotes;
        uint256 epoch;
        bool isVoting;
        address[] pools;
    }

    function getVeStella() external view returns (address);
    function bribeWhiteListedRewardToken(address _token) external view returns (bool);
    function claimBribes(address[] calldata _bribes, address[][] calldata _tokens, uint256 _tokenId) external;
    function claimFees(address[] calldata _fees, address[][] calldata _tokens, uint256 _tokenId) external;
    function vote(uint256 nftId, address[] memory _poolAddresses, uint256[] memory weights) external;
    function getPoolVotes(address poolAddress) external view returns (uint256);
    function nftVoteData(uint256 _tokenId) external view returns (VoteCheckpoint memory);
    function voted(uint256 _tokenId) external view returns (bool);
    function totalVotes() external view returns (uint256);
    function getPoolsVotedByNFTForEpoch(uint256 _nftId) external view returns (address[] memory);
    function getPoolVotesForNFT(uint256 nftId, address pool) external view returns (uint256);
    function reset(uint256 _tokenId) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface IWGLMR {
    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
    function decimals() external view returns (uint8);
    function totalSupply() external view returns (uint256);
    function balanceOf(address account) external view returns (uint256);
    function transfer(address recipient, uint256 amount) external returns (bool);
    function allowance(address owner, address spender) external view returns (uint256);
    function approve(address spender, uint256 amount) external returns (bool);
    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
    function deposit() external payable;
    function withdraw(uint256 amount) external;
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.13;

library TimeLibrary {
    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;
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;

library VotingErrors {
    error NotApprovedOrOwner();
    error InvalidPool();
    error VotingNotStartedForEpoch();
    error EpochNotFinished();
    error PoolKilled();
    error PoolAlreadyRegistered();
    error PoolAlreadyKilled();
    error PoolAlreadyActive();
    error TokenNotAdded();
    error TokenNotInList();
    error TokenAlreadyAdded();
    error RewardAmountZero();
    error ArrayLengthMismatch();
    error ExceedingMaxVotes();
    error AlreadyVoted();
    error NoVoterWeight();
    error WeightCannotBeZero();
    error InvalidVotes();
    error OnlyOwnerOrEscrow();
    error VotingInCoolDown();
    error NoVotesInEpoch();
    error NotNormalNFT();
    error VotingNotStarted();
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.13;

import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {ReentrancyGuard} from "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import {AccessControl} from "@openzeppelin/contracts/access/AccessControl.sol";
import {IVoting} from "../interfaces/IVoting.sol";
import {TimeLibrary} from "../libraries/Timelibrary.sol";
import {Math} from "@openzeppelin/contracts/utils/math/Math.sol";
import {IIncentiveManagerFactory} from "../interfaces/IIncentiveManagerFactory.sol";
import {IVEStella} from "../interfaces/IVEStella.sol";

abstract contract BaseRewardDistributor is ReentrancyGuard {
    using SafeERC20 for IERC20;

    uint256 public constant DISTRIBUTION_PERIOD = 7 days;

    address public ve;
    address public votingContract;
    IIncentiveManagerFactory.RewardType public rewardType;

    uint256 public globalBalance;
    address public authorizedCaller;
    mapping(uint256 => uint256) public individualBalance;
    mapping(address => mapping(uint256 => uint256)) public epochRewardTokenAmounts;
    mapping(address => mapping(uint256 => uint256)) public lastClaimedTimestamp;
    
    // NEW: Track total voting power that actually participated in each epoch
    mapping(uint256 => uint256) public epochTotalVotingPower;
    
    // NEW: Track which epoch each user's votes were cast in
    mapping(uint256 => mapping(uint256 => uint256)) public userEpochVotes; // tokenId => epoch => amount
    
       // NEW: Track when users deposited into managed NFT for better reward calculation
    mapping(uint256 => uint256) public userDepositEpoch;
    
    // NEW: Track last claimed epoch per user per token  
    mapping(address => mapping(uint256 => uint256)) public lastClaimedEpoch;
    
    address[] public rewardTokens;

    struct BalanceCheckpoint {
        uint256 checkpointTime;
        uint256 individualBalance;
    }

    struct GlobalCheckpoint {
        uint256 checkpointTime;
        uint256 globalBalance;
    }

    mapping(uint256 => mapping(uint256 => BalanceCheckpoint)) public balanceCheckpoints;
    mapping(uint256 => uint256) public checkpointCounts;
    mapping(uint256 => GlobalCheckpoint) public globalBalanceCheckpoints;
    uint256 public globalCheckpointCount;

    struct TokenReward {
        address token;
        uint256 amount;
    }

    event RewardNotification(address indexed notifier, address indexed token, uint256 epoch, uint256 amount);
    event TokensDeposited(address indexed user, uint256 indexed tokenId, uint256 amount);
    event TokensWithdrawn(address indexed user, uint256 indexed tokenId, uint256 amount);
    event RewardClaimed(address indexed recipient, address indexed token, uint256 reward, uint256 nftId);

    constructor(address _votingContract, address _authorizedCaller, IIncentiveManagerFactory.RewardType _rewardType) {
        votingContract = _votingContract;
        ve = IVoting(_votingContract).getVeStella();
        authorizedCaller = _authorizedCaller;
        rewardType = _rewardType;
    }

    function findPreviousBalanceIndex(uint256 tokenId, uint256 timestamp) public view returns (uint256) {
        uint256 nCheckpoints = checkpointCounts[tokenId];
        if (nCheckpoints == 0) {
            return 0;
        }

        if (balanceCheckpoints[tokenId][nCheckpoints - 1].checkpointTime <= timestamp) {
            return (nCheckpoints - 1);
        }

        if (balanceCheckpoints[tokenId][0].checkpointTime > timestamp) {
            return 0;
        }

        uint256 lower = 0;
        uint256 upper = nCheckpoints - 1;
        while (upper > lower) {
            uint256 center = upper - (upper - lower) / 2;
            BalanceCheckpoint memory cp = balanceCheckpoints[tokenId][center];
            if (cp.checkpointTime == timestamp) {
                return center;
            } else if (cp.checkpointTime < timestamp) {
                lower = center;
            } else {
                upper = center - 1;
            }
        }
        return lower;
    }

    function findPreviousGlobalIndex(uint256 timestamp) public view returns (uint256) {
        uint256 nCheckpoints = globalCheckpointCount;
        if (nCheckpoints == 0) {
            return 0;
        }

        if (globalBalanceCheckpoints[nCheckpoints - 1].checkpointTime <= timestamp) {
            return (nCheckpoints - 1);
        }

        if (globalBalanceCheckpoints[0].checkpointTime > timestamp) {
            return 0;
        }

        uint256 lower = 0;
        uint256 upper = nCheckpoints - 1;
        while (upper > lower) {
            uint256 center = upper - (upper - lower) / 2;
            GlobalCheckpoint memory cp = globalBalanceCheckpoints[center];
            if (cp.checkpointTime == timestamp) {
                return center;
            } else if (cp.checkpointTime < timestamp) {
                lower = center;
            } else {
                upper = center - 1;
            }
        }
        return lower;
    }

    function _logCheckpoint(uint256 tokenId, uint256 balance) internal {
        uint256 nCheckpoints = checkpointCounts[tokenId];
        uint256 timestamp = block.timestamp;

        if (
            nCheckpoints > 0
                && TimeLibrary.epochStart(balanceCheckpoints[tokenId][nCheckpoints - 1].checkpointTime)
                    == TimeLibrary.epochStart(timestamp)
        ) {
            balanceCheckpoints[tokenId][nCheckpoints - 1] = BalanceCheckpoint(timestamp, balance);
        } else {
            balanceCheckpoints[tokenId][nCheckpoints] = BalanceCheckpoint(timestamp, balance);
            checkpointCounts[tokenId] = nCheckpoints + 1;
        }
    }

    function _logGlobalCheckpoint() internal {
        uint256 nCheckpoints = globalCheckpointCount;
        uint256 timestamp = block.timestamp;

        if (
            nCheckpoints > 0
                && TimeLibrary.epochStart(globalBalanceCheckpoints[nCheckpoints - 1].checkpointTime)
                    == TimeLibrary.epochStart(timestamp)
        ) {
            globalBalanceCheckpoints[nCheckpoints - 1] = GlobalCheckpoint(timestamp, globalBalance);
        } else {
            globalBalanceCheckpoints[nCheckpoints] = GlobalCheckpoint(timestamp, globalBalance);
            globalCheckpointCount = nCheckpoints + 1;
        }
    }

    function recordVote(uint256 amount, uint256 tokenId) external {
        require(msg.sender == authorizedCaller, "Unauthorized");
        
        // Track epoch-specific voting power
        uint256 currentEpoch = TimeLibrary.epochStart(block.timestamp);
        epochTotalVotingPower[currentEpoch] += amount;
        
        // NEW: Track which epoch this user's votes were cast in
        userEpochVotes[tokenId][currentEpoch] += amount;
        
        // NEW: Track when user first deposited (store epoch start time, not epoch number)
        if (userDepositEpoch[tokenId] == 0) {
            userDepositEpoch[tokenId] = currentEpoch;
        }
        
        globalBalance += amount;
        individualBalance[tokenId] += amount;

        _logCheckpoint(tokenId, individualBalance[tokenId]);
        _logGlobalCheckpoint();

        emit TokensDeposited(msg.sender, tokenId, amount);
    }

    function _withdraw(uint256 amount, uint256 tokenId) external {
        require(msg.sender == authorizedCaller, "Unauthorized");
        
        // CORRECT FINAL FIX: Never touch historical voting records
        // Only modify current epoch and track global/individual balances
        uint256 currentEpoch = TimeLibrary.epochStart(block.timestamp);
        
        // Only clear current epoch votes (if any) - never touch historical epochs
        uint256 userVotesInCurrentEpoch = userEpochVotes[tokenId][currentEpoch];
        if (userVotesInCurrentEpoch > 0) {
            epochTotalVotingPower[currentEpoch] -= userVotesInCurrentEpoch;
            userEpochVotes[tokenId][currentEpoch] = 0;
        }
        
        // Update global tracking (for individual balance management)
        globalBalance -= amount;
        individualBalance[tokenId] -= amount;

        _logCheckpoint(tokenId, individualBalance[tokenId]);
        _logGlobalCheckpoint();

        emit TokensWithdrawn(msg.sender, tokenId, amount);
    }

    function _notifyRewardAmount(address token, uint256 amount) internal virtual {
        require(amount != 0, "Invalid amount zero");

        IERC20(token).safeTransferFrom(msg.sender, address(this), amount);

        uint256 currentEpoch = TimeLibrary.epochStart(block.timestamp);
        epochRewardTokenAmounts[token][currentEpoch] += amount;

        bool tokenExists = false;
        for (uint256 i = 0; i < rewardTokens.length; i++) {
            if (rewardTokens[i] == token) {
                tokenExists = true;
                break;
            }
        }
        if (!tokenExists) {
            rewardTokens.push(token);
        }

        emit RewardNotification(msg.sender, token, currentEpoch, amount);
    }

    function getReward(address recipient, uint256 tokenId, address[] memory tokens) external {
        if (rewardType != IIncentiveManagerFactory.RewardType.FREE_REWARDS) {
            require(msg.sender == authorizedCaller, "Unauthorized");
        } else {
            require(IVEStella(ve).isApprovedOrOwner(recipient, tokenId), "Not owner");
        }
        uint256 length = tokens.length;
        for (uint256 i = 0; i < length; i++) {
            uint256 rewardAmount = calculateReward(tokens[i], tokenId);
            lastClaimedTimestamp[tokens[i]][tokenId] = block.timestamp;
            
            // IMPROVED: Track last claimed epoch for managed NFT users with chunked claiming support
            if (rewardType == IIncentiveManagerFactory.RewardType.FREE_REWARDS) {
                uint256 currentEpoch = TimeLibrary.epochStart(block.timestamp);
                uint256 userDepositEpochStart = userDepositEpoch[tokenId];
                uint256 userLastClaimedEpochStart = lastClaimedEpoch[tokens[i]][tokenId];
                uint256 startEpoch = userDepositEpochStart > userLastClaimedEpochStart ? userDepositEpochStart : userLastClaimedEpochStart;
                
                if (startEpoch > 0 && startEpoch < currentEpoch) {
                    uint256 epochsToProcess = (currentEpoch - startEpoch) / DISTRIBUTION_PERIOD;
                    uint256 maxEpochs = 52;
                    
                    if (epochsToProcess > maxEpochs) {
                        // We're doing chunked claiming - only update to the end of the chunk we actually claimed
                        lastClaimedEpoch[tokens[i]][tokenId] = startEpoch + (maxEpochs * DISTRIBUTION_PERIOD);
                    } else {
                        // Normal claiming - update to current epoch
                        lastClaimedEpoch[tokens[i]][tokenId] = currentEpoch;
                    }
                } else {
                    // Fallback to current epoch
                    lastClaimedEpoch[tokens[i]][tokenId] = currentEpoch;
                }
            }
            
            if (rewardAmount > 0) IERC20(tokens[i]).safeTransfer(recipient, rewardAmount);

            emit RewardClaimed(recipient, tokens[i], rewardAmount, tokenId);
        }
    }

    function calculateReward(address token, uint256 tokenId) public view returns (uint256) {
        if (checkpointCounts[tokenId] == 0) {
            return 0;
        }

        // NEW: Check if this is a managed NFT user
        if (rewardType == IIncentiveManagerFactory.RewardType.FREE_REWARDS) {
            return calculateManagedNFTReward(token, tokenId);
        }

        uint256 totalReward = 0;
        uint256 startTime = TimeLibrary.epochStart(lastClaimedTimestamp[token][tokenId]);
        uint256 index = findPreviousBalanceIndex(tokenId, startTime);
        BalanceCheckpoint memory cp0 = balanceCheckpoints[tokenId][index];

        startTime = Math.max(startTime, TimeLibrary.epochStart(cp0.checkpointTime));

        uint256 epochCount = (TimeLibrary.epochStart(block.timestamp) - startTime) / DISTRIBUTION_PERIOD;

        if (epochCount > 0) {
            for (uint256 i = 0; i < epochCount; i++) {
                // Check if user actually voted in this specific epoch
                uint256 userBalanceInEpoch = getBalanceAtEpoch(tokenId, startTime);
                
                if (userBalanceInEpoch > 0) {
                    // Use epoch-specific voting power instead of global total supply
                    // This ensures 100% of epoch rewards get distributed among actual voters
                    uint256 epochVotingPower = epochTotalVotingPower[startTime];
                    
                    if (epochVotingPower > 0) {
                        totalReward += (userBalanceInEpoch * epochRewardTokenAmounts[token][startTime]) / epochVotingPower;
                    }
                }
                startTime += DISTRIBUTION_PERIOD;
            }
        }

        return totalReward;
    }

    // NEW: Calculate rewards for managed NFT users (proportional ownership)
    function calculateManagedNFTReward(address token, uint256 tokenId) public view returns (uint256) {
        // Get user's current balance (their recorded voting weight)
        uint256 userBalance = individualBalance[tokenId];
        if (userBalance == 0) return 0;

        uint256 currentEpoch = TimeLibrary.epochStart(block.timestamp);
        
        // Calculate from user's deposit epoch or last claimed epoch (whichever is later)
        uint256 userDepositEpochStart = userDepositEpoch[tokenId];
        uint256 userLastClaimedEpochStart = lastClaimedEpoch[token][tokenId];
        uint256 startEpoch = userDepositEpochStart > userLastClaimedEpochStart ? userDepositEpochStart : userLastClaimedEpochStart;
        
        // If user hasn't deposited yet or startEpoch is invalid, return 0
        if (startEpoch == 0 || startEpoch >= currentEpoch) return 0;
        
        // Calculate total epochs available
        uint256 epochsToProcess = (currentEpoch - startEpoch) / DISTRIBUTION_PERIOD;
        
        // IMPROVED CHUNKED CLAIMING: Process first chunk if too many epochs
        uint256 maxEpochs = 52;
        uint256 endEpoch = currentEpoch;
        
        if (epochsToProcess > maxEpochs) {
            // ✅ BETTER: Claim first 52 epochs instead of most recent 52
            // This way user can claim again later for remaining epochs
            endEpoch = startEpoch + (maxEpochs * DISTRIBUTION_PERIOD);
        }
        
        // Calculate total rewards available for this chunk
        uint256 totalAvailableRewards = 0;
        
        // Sum rewards from startEpoch to endEpoch (exclusive for actual claiming)
        for (uint256 epochStart = startEpoch; epochStart < endEpoch; epochStart += DISTRIBUTION_PERIOD) {
            totalAvailableRewards += epochRewardTokenAmounts[token][epochStart];
        }

        if (totalAvailableRewards == 0 || globalBalance == 0) return 0;

        // Return proportional share based on user's ownership percentage
        return (userBalance * totalAvailableRewards) / globalBalance;
    }

    // Get balance only if user voted during this specific epoch
    function getBalanceAtEpoch(uint256 tokenId, uint256 epochStart) public view returns (uint256) {
        // CORRECT FINAL FIX: Return original voting records for completed epochs
        // Historical voting records are preserved and never modified after epoch completion
        return userEpochVotes[tokenId][epochStart];
    }

    function getTotalRewards(uint256 tokenId) public view returns (TokenReward[] memory) {
        TokenReward[] memory rewards = new TokenReward[](rewardTokens.length);

        for (uint256 i = 0; i < rewardTokens.length; i++) {
            address token = rewardTokens[i];
            uint256 rewardAmount = calculateReward(token, tokenId);
            rewards[i] = TokenReward({token: token, amount: rewardAmount});
        }

        return rewards;
    }

    function getRewardTokens() external view returns (address[] memory) {
        return rewardTokens;
    }

    function getEstimatedRewards(address token, uint256 tokenId) public view returns (uint256) {
        if (checkpointCounts[tokenId] == 0) {
            return 0;
        }

        // NEW: Use managed NFT calculation for FREE_REWARDS
        if (rewardType == IIncentiveManagerFactory.RewardType.FREE_REWARDS) {
            return getEstimatedManagedNFTReward(token, tokenId);
        }

        // First calculate claimable rewards from completed epochs using the new logic
        uint256 totalReward = calculateReward(token, tokenId);
        
        // Now add the pending reward from current epoch only if user voted in current epoch
        uint256 currentEpochStart = TimeLibrary.epochStart(block.timestamp);
        uint256 userBalanceInCurrentEpoch = getBalanceAtEpoch(tokenId, currentEpochStart);
        
        if (userBalanceInCurrentEpoch > 0) {
            // Use epoch-specific voting power for current epoch too
            uint256 currentEpochVotingPower = epochTotalVotingPower[currentEpochStart];
            
            if (currentEpochVotingPower > 0) {
                // Add the current epoch's pending rewards only if user voted this epoch
                totalReward += (userBalanceInCurrentEpoch * epochRewardTokenAmounts[token][currentEpochStart]) / currentEpochVotingPower;
            }
        }
        
        return totalReward;
    }

    // NEW: Get estimated rewards for managed NFT users (including current epoch)
    function getEstimatedManagedNFTReward(address token, uint256 tokenId) public view returns (uint256) {
        // Get user's current balance (their recorded voting weight)
        uint256 userBalance = individualBalance[tokenId];
        if (userBalance == 0) return 0;

        uint256 currentEpoch = TimeLibrary.epochStart(block.timestamp);
        
        // Calculate from user's deposit epoch or last claimed epoch (whichever is later)
        uint256 userDepositEpochStart = userDepositEpoch[tokenId];
        uint256 userLastClaimedEpochStart = lastClaimedEpoch[token][tokenId];
        uint256 startEpoch = userDepositEpochStart > userLastClaimedEpochStart ? userDepositEpochStart : userLastClaimedEpochStart;
        
        // If user hasn't deposited yet or startEpoch is invalid, return 0
        if (startEpoch == 0 || startEpoch > currentEpoch) return 0;
        
        // Calculate total epochs available
        uint256 epochsToProcess = (currentEpoch - startEpoch) / DISTRIBUTION_PERIOD + 1; // +1 to include current epoch
        
        // IMPROVED CHUNKED CLAIMING: Process first chunk if too many epochs
        uint256 maxEpochs = 52;
        uint256 endEpoch = currentEpoch;
        
        if (epochsToProcess > maxEpochs) {
            // ✅ BETTER: Claim first 52 epochs instead of most recent 52
            // This way user can claim again later for remaining epochs
            endEpoch = startEpoch + (maxEpochs * DISTRIBUTION_PERIOD);
            // Don't include current epoch if we're chunking
            if (endEpoch > currentEpoch) {
                endEpoch = currentEpoch;
            }
        }
        
        // Calculate total rewards available for this chunk
        uint256 totalAvailableRewards = 0;
        
        // Sum rewards from startEpoch to endEpoch
        for (uint256 epochStart = startEpoch; epochStart <= endEpoch; epochStart += DISTRIBUTION_PERIOD) {
            totalAvailableRewards += epochRewardTokenAmounts[token][epochStart];
        }

        if (totalAvailableRewards == 0 || globalBalance == 0) return 0;

        // Return proportional share based on user's ownership percentage
        return (userBalance * totalAvailableRewards) / globalBalance;
    }

    function getEstimatedTotalRewards(uint256 tokenId) public view returns (TokenReward[] memory) {
        TokenReward[] memory rewards = new TokenReward[](rewardTokens.length);

        for (uint256 i = 0; i < rewardTokens.length; i++) {
            address token = rewardTokens[i];
            uint256 rewardAmount = getEstimatedRewards(token, tokenId);
            rewards[i] = TokenReward({token: token, amount: rewardAmount});
        }

        return rewards;
    }
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.13;

import {BaseRewardDistributor} from "./BaseRewardDistributor.sol";
import {IVoting} from "../interfaces/IVoting.sol";
import {AccessControl} from "@openzeppelin/contracts/access/AccessControl.sol";
import {IIncentiveManagerFactory} from "../interfaces/IIncentiveManagerFactory.sol";
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";

contract IncentiveManager is BaseRewardDistributor, AccessControl {
    bytes32 public constant FEE_ADDER_ROLE = keccak256("FEE_ADDER_ROLE");

    IIncentiveManagerFactory.RewardType public RewardType;

    constructor(address _votingContract, address _deployer, IIncentiveManagerFactory.RewardType _rewardType, address _admin)
        BaseRewardDistributor(_votingContract, _deployer, _rewardType)
    {
        RewardType = _rewardType;
        votingContract = _votingContract;

        _setupRole(DEFAULT_ADMIN_ROLE, _admin);
        _setupRole(FEE_ADDER_ROLE, _admin);
        _setupRole(FEE_ADDER_ROLE, _deployer);
        
    }

    function notifyRewardAmount(address token, uint256 amount) external {
        if (RewardType == IIncentiveManagerFactory.RewardType.BRIBE) {
            require(IVoting(votingContract).bribeWhiteListedRewardToken(token), "Bribe: Token not whitelisted");
        } else if (RewardType == IIncentiveManagerFactory.RewardType.FEE_SHARE) {
            require(hasRole(FEE_ADDER_ROLE, msg.sender), "Caller is not a fee adder");
        } else if (RewardType == IIncentiveManagerFactory.RewardType.LOCKED_REWARDS) {
            require(msg.sender == ve, "Only veStella can call");
        } else if (RewardType == IIncentiveManagerFactory.RewardType.FREE_REWARDS) {
            require(IVoting(votingContract).bribeWhiteListedRewardToken(token), "Free rewards: Token not whitelisted");
        }

        super._notifyRewardAmount(token, amount);
    }

    function changeAdmin(address _admin) external onlyRole(DEFAULT_ADMIN_ROLE) {
        _setupRole(DEFAULT_ADMIN_ROLE, _admin);
    }

    function recoverERC20(address token, uint256 amount) external onlyRole(DEFAULT_ADMIN_ROLE) {
        IERC20(token).transfer(msg.sender, amount);
    }

    function getTotalPendingRewards(uint256 tokenId) external view returns (TokenReward[] memory) {
        return getTotalRewards(tokenId);
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "viaIR": true,
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

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000000000000000000000000fa62b5962a7923a2910f945268aa65c943d131e9000000000000000000000000acc15dc74880c9944775448304b263d191c6077f00000000000000000000000005094f278f6da7c46aa0500c00b208e8c4899909000000000000000000000000704ba24f82ffa73b605b01e9f536d320f2d635590000000000000000000000006073675fa8e365c8f4fc402c930b50d8405a71ff

-----Decoded View---------------
Arg [0] : _veStellaToken (address): 0xfa62B5962a7923A2910F945268AA65C943D131e9
Arg [1] : _WGLMR (address): 0xAcc15dC74880C9944775448304B263D191c6077F
Arg [2] : _rewardRegistryAddress (address): 0x05094F278f6Da7C46AA0500c00b208E8C4899909
Arg [3] : _incentiveManagerFactory (address): 0x704Ba24F82fFa73b605B01e9F536d320f2D63559
Arg [4] : _minter (address): 0x6073675fA8E365C8f4Fc402c930B50d8405a71Ff

-----Encoded View---------------
5 Constructor Arguments found :
Arg [0] : 000000000000000000000000fa62b5962a7923a2910f945268aa65c943d131e9
Arg [1] : 000000000000000000000000acc15dc74880c9944775448304b263d191c6077f
Arg [2] : 00000000000000000000000005094f278f6da7c46aa0500c00b208e8c4899909
Arg [3] : 000000000000000000000000704ba24f82ffa73b605b01e9f536d320f2d63559
Arg [4] : 0000000000000000000000006073675fa8e365c8f4fc402c930b50d8405a71ff