Contract

Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta

More Options

• Similar
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {Pausable} from "@openzeppelin/contracts/security/Pausable.sol";
import {ReentrancyGuard} from "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import {MerkleProof} from "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol";
import {IERC20, SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {MintedBoost} from "./MintedBoost.sol";
import {AccessControlEnumerable} from "@openzeppelin/contracts/access/AccessControlEnumerable.sol";

/**
 * @title RewardsDistributor
 * @notice It distributes MINTED tokens with rolling Merkle airdrops.
 */
contract RewardsDistributorWithVesting is Pausable, ReentrancyGuard, AccessControlEnumerable {
    using SafeERC20 for IERC20;

    struct StakePool {
        uint256 shares;
        bool active;
    }
    bytes32 public constant UPDATE_REWARD_ROLE = keccak256("UPDATE_REWARD_ROLE");
    uint256[] public stakedPids;
    mapping(uint256 => StakePool) public stakePoolInfo;
    uint256 public constant TOTAL_SHARES = 10000; //100 percent

    uint256 public constant BUFFER_ADMIN_WITHDRAW = 3 days;

    IERC20 public immutable mintedToken;

    // Current reward round (users can only claim pending rewards for the current round)
    uint256 public currentRewardRound;

    // Last paused timestamp
    uint256 public lastPausedTimestamp;

    // Max amount per user in current tree
    uint256 public maximumAmountPerUserInCurrentTree;

    // Total amount claimed
    uint256 public totalClaimed;
    uint256 public totalReleased;

    MintedBoost public mintedBoost;
    uint256 public rewardSharesToUser;
    uint256 public rewardSharesToStake;

    // Total amount claimed by user (in MTD)
    mapping(address => uint256) public amountClaimedByUser;

    // Merkle root for a reward round
    mapping(uint256 => bytes32) public merkleRootOfRewardRound;

    // Checks whether a merkle root was used
    mapping(bytes32 => bool) public merkleRootUsed;

    // Keeps track on whether user has claimed at a given reward round
    mapping(uint256 => mapping(address => bool)) public hasUserClaimedForRewardRound;

    event RewardsClaim(address indexed user, uint256 indexed rewardRound, uint256 amount);
    event UpdateTradingRewards(uint256 indexed rewardRound);
    event TokenWithdrawnOwner(uint256 amount);
    event UpdateMintedBoost(address _newMintedBoost, address _oldMintedBoost);
    event AddPool(uint256 _pid);
    event UpdateShareDistribution(uint256 rewardSharesToUser, uint256 rewardSharesToStake);

    /**
     * @notice Constructor
     * @param _mintedToken address of the MTD token
     * @param _rewardSharesToUser percentage of token directly to user, 2500 = 25%
     * @param _rewardSharesToStake percentage of token to MintedBoost, 5000 = 50%
     * @param _pidsToStake array of pids in MintedBoost
     * @param _stakeshares percentage of token sent to each pid in _pidsToStake
     */
    constructor(
        address _mintedToken,
        uint256 _rewardSharesToUser,
        uint256 _rewardSharesToStake,
        uint256[] memory _pidsToStake,
        uint256[] memory _stakeshares
    ) {
        _grantRole(DEFAULT_ADMIN_ROLE, msg.sender);
        _grantRole(UPDATE_REWARD_ROLE, msg.sender);
        require(_pidsToStake.length == _stakeshares.length, "length mismatch");
        require(_rewardSharesToUser + _rewardSharesToStake == 100_00, "wrong reward shares distribution");
        rewardSharesToUser = _rewardSharesToUser;

        for (uint256 i; i < _pidsToStake.length; i++) {
            require(stakePoolInfo[_pidsToStake[i]].active == false, "duplicate pid");
            rewardSharesToStake += _stakeshares[i];
            stakePoolInfo[_pidsToStake[i]] = StakePool(_stakeshares[i], true);
            stakedPids.push(_pidsToStake[i]);
        }

        require(rewardSharesToStake == _rewardSharesToStake, "wrong stake shares distribution");
        mintedToken = IERC20(_mintedToken);
        _pause();
    }

    function setMintedBoost(address _newMintedBoost) external onlyRole(DEFAULT_ADMIN_ROLE) {
        require(_newMintedBoost != address(0), "Invalid address");
        require(_newMintedBoost != address(mintedBoost), "mintedBoost already exist");
        address _oldmintedBoost = address(mintedBoost);
        mintedBoost = MintedBoost(_newMintedBoost);

        // Gas saving, pre-approve max
        mintedToken.approve(_newMintedBoost, type(uint256).max);

        emit UpdateMintedBoost(_newMintedBoost, _oldmintedBoost);
    }

    function stakePoolLength() public view returns (uint256) {
        return stakedPids.length;
    }

    /**
     * @notice Add a new MintedBoost pid. This only add a new pid and does not send
     *         user fund to the pid yet (share set as 0)
     */
    function addPool(uint256 _pid) external onlyRole(DEFAULT_ADMIN_ROLE) {
        require(address(mintedBoost) != address(0), "mintedBoost is not setup");
        uint256 pidLength = mintedBoost.poolLength();
        require(_pid < pidLength, "Invalid Pool ID");
        require(stakePoolInfo[_pid].active == false, "duplicate pid");
        stakePoolInfo[_pid] = StakePool(0, true);
        stakedPids.push(_pid);
        emit AddPool(_pid);
    }

    /**
     * @notice Update share distribution across all the pid.
     */
    function updateShareDistribution(
        uint256 _rewardSharesToUser,
        uint256 _rewardSharesToStake,
        uint256[] memory _pidsToStake,
        uint256[] memory _stakeshares
    ) external onlyRole(DEFAULT_ADMIN_ROLE) {
        require(address(mintedBoost) != address(0), "mintedBoost is not setup");
        require(_pidsToStake.length == _stakeshares.length, "length mismatch");
        require(_rewardSharesToUser + _rewardSharesToStake == 100_00, "wrong reward shares distribution");

        rewardSharesToUser = _rewardSharesToUser;
        uint256 totalStakeShares;
        for (uint256 i; i < _pidsToStake.length; i++) {
            require(stakePoolInfo[_pidsToStake[i]].active == true, "pid doesn't exist");
            totalStakeShares += _stakeshares[i];
            stakePoolInfo[_pidsToStake[i]].shares = _stakeshares[i];
        }
        require(totalStakeShares == _rewardSharesToStake, "wrong stake shares distribution");
        rewardSharesToStake = _rewardSharesToStake;

        // Check if total pid share is still === _rewardSharesToStake
        uint256 totalStakedShare = 0;
        for (uint256 i = 0; i < stakedPids.length; i++) {
            totalStakedShare += stakePoolInfo[stakedPids[i]].shares;
        }
        require(totalStakedShare == _rewardSharesToStake, "totalStakedShare != _rewardSharesToStake");

        emit UpdateShareDistribution(_rewardSharesToUser, _rewardSharesToStake);
    }

    /**
     * @notice Claim pending rewards
     * @param amount amount to claim
     * @param merkleProof array containing the merkle proof
     */
    function claim(uint256 amount, bytes32[] calldata merkleProof) external whenNotPaused nonReentrant {
        require(address(mintedBoost) != address(0), "mintedBoost is not setup");
        // Verify the reward round is not claimed already
        require(!hasUserClaimedForRewardRound[currentRewardRound][msg.sender], "Rewards: Already claimed");
        require(amount >= amountClaimedByUser[msg.sender], "Rewards: underflow claim amount");

        (bool claimStatus, uint256 adjustedAmount) = _canClaim(msg.sender, amount, merkleProof);
        require(claimStatus, "Rewards: Invalid proof");
        require(maximumAmountPerUserInCurrentTree >= amount, "Rewards: Amount higher than max");

        // Set mapping for user and round as true
        hasUserClaimedForRewardRound[currentRewardRound][msg.sender] = true;

        // Adjust amount claimed
        amountClaimedByUser[msg.sender] += adjustedAmount;
        totalClaimed += adjustedAmount;

        // Take a percentage of adjustedAmount and lock into MintedBoost
        uint256 amountToUser = adjustedAmount;
        for (uint256 i; i < stakedPids.length; i++) {
            uint256 stakeAmount = (adjustedAmount * stakePoolInfo[stakedPids[i]].shares) / TOTAL_SHARES;
            if (stakeAmount > 0) {
                mintedBoost.depositFor(stakedPids[i], stakeAmount, msg.sender);
                amountToUser -= stakeAmount;
            }
        }

        // Transfer remaining amount to user
        if (rewardSharesToUser != 0) {
            // Do not send dust amount to user if rewardSharesToUser = 0 (prevent confusion)
            mintedToken.safeTransfer(msg.sender, amountToUser);
            totalReleased += amountToUser;
        }

        emit RewardsClaim(msg.sender, currentRewardRound, adjustedAmount);
    }

    /**
     * @notice Update trading rewards with a new merkle root
     * @dev It automatically increments the currentRewardRound
     * @param merkleRoot root of the computed merkle tree
     */
    function updateTradingRewards(bytes32 merkleRoot, uint256 newMaximumAmountPerUser) external {
        require(
            hasRole(DEFAULT_ADMIN_ROLE, msg.sender) || hasRole(UPDATE_REWARD_ROLE, msg.sender),
            "no permission to call"
        );
        require(
            newMaximumAmountPerUser >= maximumAmountPerUserInCurrentTree,
            "newMaximumAmountPerUser must be >= maximumAmountPerUserInCurrentTree"
        );
        require(address(mintedBoost) != address(0), "mintedBoost is not setup");
        require(!merkleRootUsed[merkleRoot], "Owner: Merkle root already used");
        currentRewardRound++;
        merkleRootOfRewardRound[currentRewardRound] = merkleRoot;
        merkleRootUsed[merkleRoot] = true;
        maximumAmountPerUserInCurrentTree = newMaximumAmountPerUser;
        emit UpdateTradingRewards(currentRewardRound);
    }

    /**
     * @notice Pause distribution
     */
    function pauseDistribution() external onlyRole(DEFAULT_ADMIN_ROLE) whenNotPaused {
        lastPausedTimestamp = block.timestamp;
        _pause();
    }

    /**
     * @notice Unpause distribution
     */
    function unpauseDistribution() external onlyRole(DEFAULT_ADMIN_ROLE) whenPaused {
        _unpause();
    }

    /**
     * @notice Transfer MTD tokens back to owner
     * @dev It is for emergency purposes
     * @param amount amount to withdraw
     */
    function withdrawTokenRewards(uint256 amount) external onlyRole(DEFAULT_ADMIN_ROLE) whenPaused {
        require(
            block.timestamp > (lastPausedTimestamp + BUFFER_ADMIN_WITHDRAW),
            "Owner: Too early to withdraw"
        );
        mintedToken.safeTransfer(msg.sender, amount);

        emit TokenWithdrawnOwner(amount);
    }

    /**
     * @notice Check whether it is possible to claim and how much based on previous distribution
     * @param user address of the user
     * @param amount amount to claim
     * @param merkleProof array with the merkle proof
     */
    function canClaim(
        address user,
        uint256 amount,
        bytes32[] calldata merkleProof
    ) external view returns (bool, uint256) {
        return _canClaim(user, amount, merkleProof);
    }

    /**
     * @notice Check whether it is possible to claim and how much based on previous distribution
     * @param user address of the user
     * @param amount amount to claim
     * @param merkleProof array with the merkle proof
     */
    function _canClaim(
        address user,
        uint256 amount,
        bytes32[] calldata merkleProof
    ) internal view returns (bool, uint256) {
        // return early if user has claimed or amount smaller than amountClaimed
        if ((hasUserClaimedForRewardRound[currentRewardRound][user]) || amount < amountClaimedByUser[user]) {
            return (false, 0);
        }

        // Compute the node and verify the merkle proof
        bytes32 node = keccak256(abi.encodePacked(user, amount));
        bool canUserClaim = MerkleProof.verify(
            merkleProof,
            merkleRootOfRewardRound[currentRewardRound],
            node
        );
        if (!canUserClaim) {
            return (false, 0);
        } else {
            return (true, amount - amountClaimedByUser[user]);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol)

pragma solidity ^0.8.0;

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

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract Pausable is Context {
    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    constructor() {
        _paused = false;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        _requireNotPaused();
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        _requirePaused();
        _;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

    /**
     * @dev Throws if the contract is paused.
     */
    function _requireNotPaused() internal view virtual {
        require(!paused(), "Pausable: paused");
    }

    /**
     * @dev Throws if the contract is not paused.
     */
    function _requirePaused() internal view virtual {
        require(paused(), "Pausable: not paused");
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

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

        _;

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/cryptography/MerkleProof.sol)

pragma solidity ^0.8.0;

/**
 * @dev These functions deal with verification of Merkle Tree proofs.
 *
 * The proofs can be generated using the JavaScript library
 * https://github.com/miguelmota/merkletreejs[merkletreejs].
 * Note: the hashing algorithm should be keccak256 and pair sorting should be enabled.
 *
 * See `test/utils/cryptography/MerkleProof.test.js` for some examples.
 *
 * WARNING: You should avoid using leaf values that are 64 bytes long prior to
 * hashing, or use a hash function other than keccak256 for hashing leaves.
 * This is because the concatenation of a sorted pair of internal nodes in
 * the merkle tree could be reinterpreted as a leaf value.
 */
library MerkleProof {
    /**
     * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
     * defined by `root`. For this, a `proof` must be provided, containing
     * sibling hashes on the branch from the leaf to the root of the tree. Each
     * pair of leaves and each pair of pre-images are assumed to be sorted.
     */
    function verify(
        bytes32[] memory proof,
        bytes32 root,
        bytes32 leaf
    ) internal pure returns (bool) {
        return processProof(proof, leaf) == root;
    }

    /**
     * @dev Calldata version of {verify}
     *
     * _Available since v4.7._
     */
    function verifyCalldata(
        bytes32[] calldata proof,
        bytes32 root,
        bytes32 leaf
    ) internal pure returns (bool) {
        return processProofCalldata(proof, leaf) == root;
    }

    /**
     * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up
     * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt
     * hash matches the root of the tree. When processing the proof, the pairs
     * of leafs & pre-images are assumed to be sorted.
     *
     * _Available since v4.4._
     */
    function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) {
        bytes32 computedHash = leaf;
        for (uint256 i = 0; i < proof.length; i++) {
            computedHash = _hashPair(computedHash, proof[i]);
        }
        return computedHash;
    }

    /**
     * @dev Calldata version of {processProof}
     *
     * _Available since v4.7._
     */
    function processProofCalldata(bytes32[] calldata proof, bytes32 leaf) internal pure returns (bytes32) {
        bytes32 computedHash = leaf;
        for (uint256 i = 0; i < proof.length; i++) {
            computedHash = _hashPair(computedHash, proof[i]);
        }
        return computedHash;
    }

    /**
     * @dev Returns true if the `leaves` can be proved to be a part of a Merkle tree defined by
     * `root`, according to `proof` and `proofFlags` as described in {processMultiProof}.
     *
     * _Available since v4.7._
     */
    function multiProofVerify(
        bytes32[] memory proof,
        bool[] memory proofFlags,
        bytes32 root,
        bytes32[] memory leaves
    ) internal pure returns (bool) {
        return processMultiProof(proof, proofFlags, leaves) == root;
    }

    /**
     * @dev Calldata version of {multiProofVerify}
     *
     * _Available since v4.7._
     */
    function multiProofVerifyCalldata(
        bytes32[] calldata proof,
        bool[] calldata proofFlags,
        bytes32 root,
        bytes32[] memory leaves
    ) internal pure returns (bool) {
        return processMultiProofCalldata(proof, proofFlags, leaves) == root;
    }

    /**
     * @dev Returns the root of a tree reconstructed from `leaves` and the sibling nodes in `proof`,
     * consuming from one or the other at each step according to the instructions given by
     * `proofFlags`.
     *
     * _Available since v4.7._
     */
    function processMultiProof(
        bytes32[] memory proof,
        bool[] memory proofFlags,
        bytes32[] memory leaves
    ) internal pure returns (bytes32 merkleRoot) {
        // This function rebuild the root hash by traversing the tree up from the leaves. The root is rebuilt by
        // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
        // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
        // the merkle tree.
        uint256 leavesLen = leaves.length;
        uint256 totalHashes = proofFlags.length;

        // Check proof validity.
        require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof");

        // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
        // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
        bytes32[] memory hashes = new bytes32[](totalHashes);
        uint256 leafPos = 0;
        uint256 hashPos = 0;
        uint256 proofPos = 0;
        // At each step, we compute the next hash using two values:
        // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
        //   get the next hash.
        // - depending on the flag, either another value for the "main queue" (merging branches) or an element from the
        //   `proof` array.
        for (uint256 i = 0; i < totalHashes; i++) {
            bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
            bytes32 b = proofFlags[i] ? leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++] : proof[proofPos++];
            hashes[i] = _hashPair(a, b);
        }

        if (totalHashes > 0) {
            return hashes[totalHashes - 1];
        } else if (leavesLen > 0) {
            return leaves[0];
        } else {
            return proof[0];
        }
    }

    /**
     * @dev Calldata version of {processMultiProof}
     *
     * _Available since v4.7._
     */
    function processMultiProofCalldata(
        bytes32[] calldata proof,
        bool[] calldata proofFlags,
        bytes32[] memory leaves
    ) internal pure returns (bytes32 merkleRoot) {
        // This function rebuild the root hash by traversing the tree up from the leaves. The root is rebuilt by
        // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
        // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
        // the merkle tree.
        uint256 leavesLen = leaves.length;
        uint256 totalHashes = proofFlags.length;

        // Check proof validity.
        require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof");

        // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
        // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
        bytes32[] memory hashes = new bytes32[](totalHashes);
        uint256 leafPos = 0;
        uint256 hashPos = 0;
        uint256 proofPos = 0;
        // At each step, we compute the next hash using two values:
        // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
        //   get the next hash.
        // - depending on the flag, either another value for the "main queue" (merging branches) or an element from the
        //   `proof` array.
        for (uint256 i = 0; i < totalHashes; i++) {
            bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
            bytes32 b = proofFlags[i] ? leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++] : proof[proofPos++];
            hashes[i] = _hashPair(a, b);
        }

        if (totalHashes > 0) {
            return hashes[totalHashes - 1];
        } else if (leavesLen > 0) {
            return leaves[0];
        } else {
            return proof[0];
        }
    }

    function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) {
        return a < b ? _efficientHash(a, b) : _efficientHash(b, a);
    }

    function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, a)
            mstore(0x20, b)
            value := keccak256(0x00, 0x40)
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/draft-IERC20Permit.sol";
import "../../../utils/Address.sol";

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

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

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

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

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

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

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

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

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

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

import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC20/utils/SafeERC20Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol";
import {TokenDistributor} from "./TokenDistributor.sol";
import {FeeDistributor} from "./FeeDistributor.sol";

/**
 * @dev It calls TokenDistributor which in turns mint new MTD rewards
 * @dev It calls FeeDistributor which in turns mint new WCRO rewards
 * @dev Stake MTD to earn more MTD and WCRO
 */
contract MintedBoost is
    Initializable,
    UUPSUpgradeable,
    OwnableUpgradeable,
    ERC20Upgradeable,
    ReentrancyGuardUpgradeable
{
    using SafeERC20Upgradeable for IERC20Upgradeable;

    struct Stake {
        uint256 amount;
        uint256 poolId;
        uint256 weightedAmount;
        uint256 stakeTimestamp;
        uint256 unlockTimestamp;
        bool active;
    }

    struct PoolInfo {
        uint256 multiplier;
        uint256 lockPeriod;
        uint256 totalStaked;
    }

    struct UserInfo {
        uint256 weightedAmount;
        uint256 rewardDebt;
        uint256 croRewardDebt;
        Stake[] stakes;
    }

    mapping(address => UserInfo) public userInfo;
    PoolInfo[] public poolInfo;

    // multiplier -> lockPeriod -> poolID (in +1 format)
    mapping(uint256 => mapping(uint256 => uint256)) public activePoolMap;

    uint256 public lastMtdBalance;
    uint256 public accTokenPerShare;

    uint256 public lastWcroBalance;
    uint256 public accWcroPerShare;

    uint256 public lastRewardBlock;

    IERC20Upgradeable public mtd;
    IERC20Upgradeable public wcro;
    TokenDistributor public tokenDist;
    FeeDistributor public feeDist;
    uint256 public constant PRECISION = 10**18;

    event Deposit(
        address indexed user,
        uint256 indexed pid,
        uint256 indexed stakeId,
        uint256 amount,
        uint256 weightedAmount,
        uint256 unlockTimestamp
    );
    event Withdraw(address indexed user, uint256 indexed stakeId, uint256 amount, uint256 weightedAmount);
    event Upgrade(
        address indexed user,
        uint256 indexed stakeId,
        uint256 indexed newPid,
        uint256 newWeightedAmount,
        uint256 newUnlockTimestamp
    );
    event AddPool(uint256 indexed poolId, uint256 multiplier, uint256 lockPeriod);
    event SetPool(uint256 indexed poolId, uint256 multiplier, uint256 lockPeriod);
    event UpdateFeeDistributor(address _newFeeDistributor, address _oldFeeDist);
    event UpdateTokenDistributor(address _newTokenDistributor, address _oldTokenDist);

    /// @custom:oz-upgrades-unsafe-allow constructor
    constructor() {
        _disableInitializers();
    }

    function initialize(
        IERC20Upgradeable _mtd,
        IERC20Upgradeable _wcro,
        address _tokenDist,
        address _feeDist
    ) public initializer {
        mtd = _mtd;
        wcro = _wcro;
        tokenDist = TokenDistributor(_tokenDist);
        feeDist = FeeDistributor(_feeDist);
        __Ownable_init();
        __UUPSUpgradeable_init();
        __ERC20_init("MTD Boost Bearing Token", "MBOOST");
    }

    function updateFeeDistributor(address _newFeeDistributor) external onlyOwner {
        require(_newFeeDistributor != address(0), "Invalid address");
        require(_newFeeDistributor != address(feeDist), "FeeDistributor already exist");
        address _oldFeeDist = address(feeDist);
        feeDist = FeeDistributor(_newFeeDistributor);
        emit UpdateFeeDistributor(_newFeeDistributor, _oldFeeDist);
    }

    function updateTokenDistributor(address _newTokenDistributor) external onlyOwner {
        require(_newTokenDistributor != address(0), "Invalid address");
        require(_newTokenDistributor != address(tokenDist), "TokenDistributor already exist");
        address _oldTokenDist = address(tokenDist);
        tokenDist = TokenDistributor(_newTokenDistributor);
        emit UpdateTokenDistributor(_newTokenDistributor, _oldTokenDist);
    }

    function deposit(uint256 _pid, uint256 _amount) external {
        depositFor(_pid, _amount, msg.sender);
    }

    /// @param _user address to deposit on behalf on. MTD will come from msg.sender instead of user
    function depositFor(
        uint256 _pid,
        uint256 _amount,
        address _user
    ) public nonReentrant {
        PoolInfo storage pool = poolInfo[_pid];
        require(pool.multiplier > 0, "MintedBoost: Invalid Pool ID");

        _harvest();

        Stake memory stake;
        UserInfo storage user = userInfo[_user];

        if (user.weightedAmount > 0) {
            uint256 pending = (user.weightedAmount * accTokenPerShare) / PRECISION - user.rewardDebt;
            if (pending > 0) {
                // In case of rounding error, contract does not have enough minted
                if (lastMtdBalance < pending) {
                    pending = lastMtdBalance;
                }
                mtd.safeTransfer(_user, pending);
                lastMtdBalance = mtd.balanceOf(address(this));
            }
            uint256 pendingCro = (user.weightedAmount * accWcroPerShare) / PRECISION - user.croRewardDebt;
            if (pendingCro > 0) {
                if (lastWcroBalance < pendingCro) {
                    pendingCro = lastWcroBalance;
                }
                wcro.safeTransfer(_user, pendingCro);
                lastWcroBalance = wcro.balanceOf(address(this));
            }
        }

        if (_amount > 0) {
            uint256 weightedAmount = pool.multiplier * _amount;
            stake.amount = _amount;
            stake.poolId = _pid;
            stake.weightedAmount = weightedAmount;
            stake.stakeTimestamp = block.timestamp;
            stake.unlockTimestamp = block.timestamp + pool.lockPeriod;
            stake.active = true;

            pool.totalStaked += _amount;

            mtd.safeTransferFrom(msg.sender, address(this), _amount);
            lastMtdBalance = mtd.balanceOf(address(this));
            _mint(_user, weightedAmount);

            user.stakes.push(stake);
            user.weightedAmount += weightedAmount;
        }

        user.rewardDebt = (user.weightedAmount * accTokenPerShare) / PRECISION;
        user.croRewardDebt = (user.weightedAmount * accWcroPerShare) / PRECISION;
        emit Deposit(
            _user,
            _pid,
            user.stakes.length - 1,
            _amount,
            stake.weightedAmount,
            stake.unlockTimestamp
        );
    }

    function withdraw(uint256 _stakeId) public nonReentrant {
        UserInfo storage user = userInfo[msg.sender];
        Stake storage stake = user.stakes[_stakeId];
        PoolInfo storage pool = poolInfo[stake.poolId];
        require(block.timestamp >= stake.unlockTimestamp, "MintedBoost: Stake not Ready for Withdrawal");
        require(stake.active, "MintedBoost: Stake not Active");

        _harvest();

        if (user.weightedAmount > 0) {
            uint256 pending = (user.weightedAmount * accTokenPerShare) / PRECISION - user.rewardDebt;
            if (pending > 0) {
                // In case of rounding error, contract does not have enough minted
                if (lastMtdBalance < pending) {
                    pending = lastMtdBalance;
                }
                mtd.safeTransfer(msg.sender, pending);
                lastMtdBalance = mtd.balanceOf(address(this));
            }
            uint256 pendingCro = (user.weightedAmount * accWcroPerShare) / PRECISION - user.croRewardDebt;
            if (pendingCro > 0) {
                if (lastWcroBalance < pendingCro) {
                    pendingCro = lastWcroBalance;
                }
                wcro.safeTransfer(msg.sender, pendingCro);
                lastWcroBalance = wcro.balanceOf(address(this));
            }
        }
        mtd.safeTransfer(msg.sender, stake.amount);
        lastMtdBalance = mtd.balanceOf(address(this));

        user.weightedAmount -= stake.weightedAmount;
        _burn(msg.sender, stake.weightedAmount);

        pool.totalStaked -= stake.amount;
        stake.active = false;

        user.rewardDebt = (user.weightedAmount * accTokenPerShare) / PRECISION;
        user.croRewardDebt = (user.weightedAmount * accWcroPerShare) / PRECISION;
        emit Withdraw(msg.sender, _stakeId, stake.amount, stake.weightedAmount);
    }

    function upgrade(uint256 _stakeId, uint256 _newPid) public nonReentrant {
        UserInfo storage user = userInfo[msg.sender];
        Stake storage stake = user.stakes[_stakeId];
        PoolInfo storage oldPool = poolInfo[stake.poolId];
        PoolInfo storage newPool = poolInfo[_newPid];
        require(stake.active, "MintedBoost: Stake not Active");
        require(
            stake.stakeTimestamp + newPool.lockPeriod >= stake.unlockTimestamp,
            "MintedBoost: New Stake must be longer"
        );
        require(newPool.multiplier > stake.weightedAmount / stake.amount, "MintedBoost: Why downgrade");

        _harvest();
        if (user.weightedAmount > 0) {
            uint256 pending = (user.weightedAmount * accTokenPerShare) / PRECISION - user.rewardDebt;
            if (pending > 0) {
                // In case of rounding error, contract does not have enough minted
                if (lastMtdBalance < pending) {
                    pending = lastMtdBalance;
                }
                mtd.safeTransfer(msg.sender, pending);
                lastMtdBalance = mtd.balanceOf(address(this));
            }
            uint256 pendingCro = (user.weightedAmount * accWcroPerShare) / PRECISION - user.croRewardDebt;
            if (pendingCro > 0) {
                if (lastWcroBalance < pendingCro) {
                    pendingCro = lastWcroBalance;
                }
                wcro.safeTransfer(msg.sender, pendingCro);
                lastWcroBalance = wcro.balanceOf(address(this));
            }
        }

        stake.poolId = _newPid;
        stake.unlockTimestamp = stake.stakeTimestamp + newPool.lockPeriod;

        uint256 upgradeAmount = newPool.multiplier * stake.amount - stake.weightedAmount;
        user.weightedAmount += upgradeAmount;
        stake.weightedAmount += upgradeAmount;
        _mint(msg.sender, upgradeAmount);

        oldPool.totalStaked -= stake.amount;
        newPool.totalStaked += stake.amount;

        user.rewardDebt = (user.weightedAmount * accTokenPerShare) / PRECISION;
        user.croRewardDebt = (user.weightedAmount * accWcroPerShare) / PRECISION;
        emit Upgrade(msg.sender, _stakeId, _newPid, stake.weightedAmount, stake.unlockTimestamp);
    }

    function batchWithdraw(uint256[] calldata _stakeIds) external {
        for (uint256 i; i < _stakeIds.length; i++) {
            withdraw(_stakeIds[i]);
        }
    }

    function batchUpgrade(uint256[] calldata _stakeIds, uint256[] calldata _newPids) external {
        require(_stakeIds.length == _newPids.length, "MintedBoost: Array length mismatch");
        for (uint256 i; i < _stakeIds.length; i++) {
            upgrade(_stakeIds[i], _newPids[i]);
        }
    }

    function _harvest() internal {
        if (block.number <= lastRewardBlock) {
            return;
        }
        if (totalSupply() == 0) {
            lastRewardBlock = block.number;
            return;
        }
        tokenDist.updatePool();
        feeDist.updateRewards();

        uint256 harvestedMtd = mtd.balanceOf(address(this)) - lastMtdBalance;
        lastMtdBalance = mtd.balanceOf(address(this));
        accTokenPerShare += (PRECISION * harvestedMtd) / totalSupply();

        uint256 harvestedCro = wcro.balanceOf(address(this)) - lastWcroBalance;
        lastWcroBalance = wcro.balanceOf(address(this));
        accWcroPerShare += (PRECISION * harvestedCro) / totalSupply();

        lastRewardBlock = block.number;
    }

    function add(uint256 _multiplier, uint256 _lockPeriod) public onlyOwner {
        require(activePoolMap[_multiplier][_lockPeriod] == 0, "MintedBoost: Duplicate Pool");
        require(_multiplier > 0, "MintedBoost: Multiplier must be > 0");
        poolInfo.push(PoolInfo({multiplier: _multiplier, lockPeriod: _lockPeriod, totalStaked: 0}));
        activePoolMap[_multiplier][_lockPeriod] = poolInfo.length;
        emit AddPool(poolInfo.length - 1, _multiplier, _lockPeriod);
    }

    function set(
        uint256 _pid,
        uint256 _multiplier,
        uint256 _lockPeriod
    ) public onlyOwner {
        require(activePoolMap[_multiplier][_lockPeriod] == 0, "MintedBoost: Duplicate Pool");
        require(_multiplier > 0, "MintedBoost: Multiplier must be > 0");
        _harvest();

        PoolInfo storage pool = poolInfo[_pid];
        activePoolMap[pool.multiplier][pool.lockPeriod] = 0;
        pool.multiplier = _multiplier;
        pool.lockPeriod = _lockPeriod;
        activePoolMap[_multiplier][_lockPeriod] = _pid + 1;

        emit SetPool(_pid, _multiplier, _lockPeriod);
    }

    function getUserInfo(address _user)
        external
        view
        returns (
            uint256,
            uint256,
            Stake[] memory
        )
    {
        UserInfo memory user = userInfo[_user];
        return (user.weightedAmount, user.rewardDebt, user.stakes);
    }

    /**
     * @dev Just in case there are too many Stakes and jams `getUserInfo`
     */
    function getUserStake(address _user, uint256 _stakeId) external view returns (Stake memory) {
        return userInfo[_user].stakes[_stakeId];
    }

    function pendingMTD(address _user) external view returns (uint256) {
        if (totalSupply() == 0) {
            return 0;
        }
        UserInfo memory user = userInfo[_user];
        uint256 tAccTokenPerShare = accTokenPerShare;
        (uint256 mtdToHarvest, ) = tokenDist.getPendingRewards();
        tAccTokenPerShare += (PRECISION * mtdToHarvest) / totalSupply();
        uint256 pendingMtd = (user.weightedAmount * tAccTokenPerShare) / PRECISION - user.rewardDebt;
        return pendingMtd;
    }

    function pendingWCRO(address _user) external view returns (uint256) {
        if (totalSupply() == 0) {
            return 0;
        }
        UserInfo memory user = userInfo[_user];
        uint256 tAccWcroPerShare = accWcroPerShare;
        uint256 wcroToHarvest = feeDist.getPendingRewards();
        tAccWcroPerShare += (PRECISION * wcroToHarvest) / totalSupply();
        uint256 pendingCro = (user.weightedAmount * tAccWcroPerShare) / PRECISION - user.croRewardDebt;
        return pendingCro;
    }

    function poolLength() external view returns (uint256) {
        return poolInfo.length;
    }

    /**
     * @dev BOOST Token is currently non-transferable
     */
    function _beforeTokenTransfer(
        address _from,
        address _to,
        uint256
    ) internal pure override {
        require(_from == address(0) || _to == address(0), "MintedBoost: Transfer not permitted");
    }

    /**
     * @dev Required by EIP-1822 UUPS
     */
    function _authorizeUpgrade(address) internal override onlyOwner {}
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (access/AccessControlEnumerable.sol)

pragma solidity ^0.8.0;

import "./IAccessControlEnumerable.sol";
import "./AccessControl.sol";
import "../utils/structs/EnumerableSet.sol";

/**
 * @dev Extension of {AccessControl} that allows enumerating the members of each role.
 */
abstract contract AccessControlEnumerable is IAccessControlEnumerable, AccessControl {
    using EnumerableSet for EnumerableSet.AddressSet;

    mapping(bytes32 => EnumerableSet.AddressSet) private _roleMembers;

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

    /**
     * @dev Returns one of the accounts that have `role`. `index` must be a
     * value between 0 and {getRoleMemberCount}, non-inclusive.
     *
     * Role bearers are not sorted in any particular way, and their ordering may
     * change at any point.
     *
     * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure
     * you perform all queries on the same block. See the following
     * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post]
     * for more information.
     */
    function getRoleMember(bytes32 role, uint256 index) public view virtual override returns (address) {
        return _roleMembers[role].at(index);
    }

    /**
     * @dev Returns the number of accounts that have `role`. Can be used
     * together with {getRoleMember} to enumerate all bearers of a role.
     */
    function getRoleMemberCount(bytes32 role) public view virtual override returns (uint256) {
        return _roleMembers[role].length();
    }

    /**
     * @dev Overload {_grantRole} to track enumerable memberships
     */
    function _grantRole(bytes32 role, address account) internal virtual override {
        super._grantRole(role, account);
        _roleMembers[role].add(account);
    }

    /**
     * @dev Overload {_revokeRole} to track enumerable memberships
     */
    function _revokeRole(bytes32 role, address account) internal virtual override {
        super._revokeRole(role, account);
        _roleMembers[role].remove(account);
    }
}

// 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 (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-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 v4.7.0) (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
     * ====
     *
     * [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://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

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

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "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");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(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) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(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) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason 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 {
            // 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 (last updated v4.7.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.2;

import "../../utils/AddressUpgradeable.sol";

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     * @custom:oz-retyped-from bool
     */
    uint8 private _initialized;

    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint8 version);

    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts. Equivalent to `reinitializer(1)`.
     */
    modifier initializer() {
        bool isTopLevelCall = !_initializing;
        require(
            (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
            "Initializable: contract is already initialized"
        );
        _initialized = 1;
        if (isTopLevelCall) {
            _initializing = true;
        }
        _;
        if (isTopLevelCall) {
            _initializing = false;
            emit Initialized(1);
        }
    }

    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * `initializer` is equivalent to `reinitializer(1)`, so a reinitializer may be used after the original
     * initialization step. This is essential to configure modules that are added through upgrades and that require
     * initialization.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     */
    modifier reinitializer(uint8 version) {
        require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
        _initialized = version;
        _initializing = true;
        _;
        _initializing = false;
        emit Initialized(version);
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        require(_initializing, "Initializable: contract is not initializing");
        _;
    }

    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     */
    function _disableInitializers() internal virtual {
        require(!_initializing, "Initializable: contract is initializing");
        if (_initialized < type(uint8).max) {
            _initialized = type(uint8).max;
            emit Initialized(type(uint8).max);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (proxy/utils/UUPSUpgradeable.sol)

pragma solidity ^0.8.0;

import "../../interfaces/draft-IERC1822Upgradeable.sol";
import "../ERC1967/ERC1967UpgradeUpgradeable.sol";
import "./Initializable.sol";

/**
 * @dev An upgradeability mechanism designed for UUPS proxies. The functions included here can perform an upgrade of an
 * {ERC1967Proxy}, when this contract is set as the implementation behind such a proxy.
 *
 * A security mechanism ensures that an upgrade does not turn off upgradeability accidentally, although this risk is
 * reinstated if the upgrade retains upgradeability but removes the security mechanism, e.g. by replacing
 * `UUPSUpgradeable` with a custom implementation of upgrades.
 *
 * The {_authorizeUpgrade} function must be overridden to include access restriction to the upgrade mechanism.
 *
 * _Available since v4.1._
 */
abstract contract UUPSUpgradeable is Initializable, IERC1822ProxiableUpgradeable, ERC1967UpgradeUpgradeable {
    function __UUPSUpgradeable_init() internal onlyInitializing {
    }

    function __UUPSUpgradeable_init_unchained() internal onlyInitializing {
    }
    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment
    address private immutable __self = address(this);

    /**
     * @dev Check that the execution is being performed through a delegatecall call and that the execution context is
     * a proxy contract with an implementation (as defined in ERC1967) pointing to self. This should only be the case
     * for UUPS and transparent proxies that are using the current contract as their implementation. Execution of a
     * function through ERC1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to
     * fail.
     */
    modifier onlyProxy() {
        require(address(this) != __self, "Function must be called through delegatecall");
        require(_getImplementation() == __self, "Function must be called through active proxy");
        _;
    }

    /**
     * @dev Check that the execution is not being performed through a delegate call. This allows a function to be
     * callable on the implementing contract but not through proxies.
     */
    modifier notDelegated() {
        require(address(this) == __self, "UUPSUpgradeable: must not be called through delegatecall");
        _;
    }

    /**
     * @dev Implementation of the ERC1822 {proxiableUUID} function. This returns the storage slot used by the
     * implementation. It is used to validate that the this implementation remains valid after an upgrade.
     *
     * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
     * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
     * function revert if invoked through a proxy. This is guaranteed by the `notDelegated` modifier.
     */
    function proxiableUUID() external view virtual override notDelegated returns (bytes32) {
        return _IMPLEMENTATION_SLOT;
    }

    /**
     * @dev Upgrade the implementation of the proxy to `newImplementation`.
     *
     * Calls {_authorizeUpgrade}.
     *
     * Emits an {Upgraded} event.
     */
    function upgradeTo(address newImplementation) external virtual onlyProxy {
        _authorizeUpgrade(newImplementation);
        _upgradeToAndCallUUPS(newImplementation, new bytes(0), false);
    }

    /**
     * @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call
     * encoded in `data`.
     *
     * Calls {_authorizeUpgrade}.
     *
     * Emits an {Upgraded} event.
     */
    function upgradeToAndCall(address newImplementation, bytes memory data) external payable virtual onlyProxy {
        _authorizeUpgrade(newImplementation);
        _upgradeToAndCallUUPS(newImplementation, data, true);
    }

    /**
     * @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by
     * {upgradeTo} and {upgradeToAndCall}.
     *
     * Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}.
     *
     * ```solidity
     * function _authorizeUpgrade(address) internal override onlyOwner {}
     * ```
     */
    function _authorizeUpgrade(address newImplementation) internal virtual;

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20Upgradeable.sol";
import "../extensions/draft-IERC20PermitUpgradeable.sol";
import "../../../utils/AddressUpgradeable.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 SafeERC20Upgradeable {
    using AddressUpgradeable for address;

    function safeTransfer(
        IERC20Upgradeable token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20Upgradeable 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(
        IERC20Upgradeable token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(
        IERC20Upgradeable token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(
        IERC20Upgradeable token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    function safePermit(
        IERC20PermitUpgradeable 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(IERC20Upgradeable token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

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

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

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20Upgradeable {
    /**
     * @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 v4.7.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.0;

import "./IERC20Upgradeable.sol";
import "./extensions/IERC20MetadataUpgradeable.sol";
import "../../utils/ContextUpgradeable.sol";
import "../../proxy/utils/Initializable.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC20
 * applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20Upgradeable is Initializable, ContextUpgradeable, IERC20Upgradeable, IERC20MetadataUpgradeable {
    mapping(address => uint256) private _balances;

    mapping(address => mapping(address => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * The default value of {decimals} is 18. To select a different value for
     * {decimals} you should overload it.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    function __ERC20_init(string memory name_, string memory symbol_) internal onlyInitializing {
        __ERC20_init_unchained(name_, symbol_);
    }

    function __ERC20_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5.05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the value {ERC20} uses, unless this function is
     * overridden;
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual override returns (uint8) {
        return 18;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address to, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, amount);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `amount`.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) public virtual override returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, amount);
        _transfer(from, to, amount);
        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, allowance(owner, spender) + addedValue);
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        address owner = _msgSender();
        uint256 currentAllowance = allowance(owner, spender);
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(owner, spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    /**
     * @dev Moves `amount` of tokens from `from` to `to`.
     *
     * This internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     */
    function _transfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(from, to, amount);

        uint256 fromBalance = _balances[from];
        require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[from] = fromBalance - amount;
        }
        _balances[to] += amount;

        emit Transfer(from, to, amount);

        _afterTokenTransfer(from, to, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply += amount;
        _balances[account] += amount;
        emit Transfer(address(0), account, amount);

        _afterTokenTransfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        unchecked {
            _balances[account] = accountBalance - amount;
        }
        _totalSupply -= amount;

        emit Transfer(account, address(0), amount);

        _afterTokenTransfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(
        address owner,
        address spender,
        uint256 amount
    ) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `amount`.
     *
     * Does not update the allowance amount in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Might emit an {Approval} event.
     */
    function _spendAllowance(
        address owner,
        address spender,
        uint256 amount
    ) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            require(currentAllowance >= amount, "ERC20: insufficient allowance");
            unchecked {
                _approve(owner, spender, currentAllowance - amount);
            }
        }
    }

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}

    /**
     * @dev Hook that is called after any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * has been transferred to `to`.
     * - when `from` is zero, `amount` tokens have been minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens have been burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[45] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/ContextUpgradeable.sol";
import "../proxy/utils/Initializable.sol";

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

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

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

    function __Ownable_init_unchained() internal onlyInitializing {
        _transferOwnership(_msgSender());
    }

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

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

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

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

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

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

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[49] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";

/**
 * @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 ReentrancyGuardUpgradeable is Initializable {
    // 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;

    function __ReentrancyGuard_init() internal onlyInitializing {
        __ReentrancyGuard_init_unchained();
    }

    function __ReentrancyGuard_init_unchained() internal onlyInitializing {
        _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() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

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

        _;

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

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[49] private __gap;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {ReentrancyGuard} from "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import {IERC20, SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "./interfaces/IMintedToken.sol";

import "@openzeppelin/contracts/access/Ownable.sol";

/**
 * @title TokenDistributor
 * @notice It handles the distribution of MTD token.
 * It auto-adjusts block rewards over a set number of periods.
 */
contract TokenDistributor is Ownable, ReentrancyGuard {
    using SafeERC20 for IERC20;
    using SafeERC20 for IMintedToken;
    uint256 public constant PRECISION_FACTOR = 10**18;
    struct StakingPeriod {
        uint256 rewardPerBlockForStaking;
        uint256 rewardPerBlockForOthers;
        uint256 periodLengthInBlock;
    }

    IMintedToken public immutable mintedToken;

    address public immutable tokenSplitter;
    address public stakingAddr;

    // Number of reward periods
    uint256 public immutable NUMBER_PERIODS;

    // Block number when rewards start
    uint256 public immutable START_BLOCK;

    // Current phase for rewards
    uint256 public currentPhase;

    // Block number when rewards end
    uint256 public endBlock;

    // Block number of the last update
    uint256 public lastRewardBlock;

    // Tokens distributed per block for other purposes (team + treasury + trading rewards)
    uint256 public rewardPerBlockForOthers;

    // Tokens distributed per block for staking
    uint256 public rewardPerBlockForStaking;

    mapping(uint256 => StakingPeriod) public stakingPeriod;

    event NewRewardsPerBlock(
        uint256 indexed currentPhase,
        uint256 startBlock,
        uint256 rewardPerBlockForStaking,
        uint256 rewardPerBlockForOthers
    );
    event SetupStakingAddress(address stakingAddr);

    /**
     * @notice Constructor
     * @param _mintedToken MTD token address
     * @param _tokenSplitter token splitter contract address (for team and trading rewards)
     * @param _startBlock start block for reward program
     * @param _rewardsPerBlockForStaking array of rewards per block for staking
     * @param _rewardsPerBlockForOthers array of rewards per block for other purposes (team + treasury + trading rewards)
     * @param _periodLengthesInBlocks array of period lengthes
     * @param _numberPeriods number of periods with different rewards/lengthes (e.g., if 3 changes --> 4 periods)
     */
    constructor(
        address _mintedToken,
        address _tokenSplitter,
        uint256 _startBlock,
        uint256[] memory _rewardsPerBlockForStaking,
        uint256[] memory _rewardsPerBlockForOthers,
        uint256[] memory _periodLengthesInBlocks,
        uint256 _numberPeriods,
        uint256 slippage
    ) {
        require(_mintedToken != address(0), "Distributor: mintedToken must not be address(0)");
        require(
            (_periodLengthesInBlocks.length == _numberPeriods) &&
                (_rewardsPerBlockForStaking.length == _numberPeriods) &&
                (_rewardsPerBlockForOthers.length == _numberPeriods),
            "Distributor: lengths must match numberPeriods"
        );
        require(_tokenSplitter != address(0), "Distributor: tokenSplitter must not be address(0)");

        // 1. Operational checks for supply
        uint256 nonCirculatingSupply = IMintedToken(_mintedToken).SUPPLY_CAP() -
            IMintedToken(_mintedToken).totalSupply();

        uint256 amountTokensToBeMinted;

        for (uint256 i = 0; i < _numberPeriods; i++) {
            amountTokensToBeMinted +=
                (_rewardsPerBlockForStaking[i] * _periodLengthesInBlocks[i]) +
                (_rewardsPerBlockForOthers[i] * _periodLengthesInBlocks[i]);

            stakingPeriod[i] = StakingPeriod({
                rewardPerBlockForStaking: _rewardsPerBlockForStaking[i],
                rewardPerBlockForOthers: _rewardsPerBlockForOthers[i],
                periodLengthInBlock: _periodLengthesInBlocks[i]
            });
        }
        require(amountTokensToBeMinted <= nonCirculatingSupply, "Distributor: rewards exceeds supply");
        uint256 residueAmt = nonCirculatingSupply - amountTokensToBeMinted;
        uint256 rewardSlippage = (residueAmt * 100 * PRECISION_FACTOR) / nonCirculatingSupply;
        require(rewardSlippage <= slippage, "Distributor: slippage exceeds");
        // 2. Store values
        mintedToken = IMintedToken(_mintedToken);
        tokenSplitter = _tokenSplitter;
        rewardPerBlockForStaking = _rewardsPerBlockForStaking[0];
        rewardPerBlockForOthers = _rewardsPerBlockForOthers[0];

        START_BLOCK = _startBlock;
        endBlock = _startBlock + _periodLengthesInBlocks[0];

        NUMBER_PERIODS = _numberPeriods;

        // Set the lastRewardBlock as the startBlock
        lastRewardBlock = _startBlock;
    }

    /**
     * @dev updates the staking adddress as a mintedBoost contract address once it is deployed.
     */

    function setupStakingAddress(address _stakingAddr) external onlyOwner {
        require(_stakingAddr != address(0), "invalid address");
        stakingAddr = _stakingAddr;
        emit SetupStakingAddress(stakingAddr);
    }

    /**
     * @notice Update pool rewards
     */
    function updatePool() external nonReentrant {
        _updatePool();
    }

    /**
     * @notice Update reward variables of the pool
     */
    function _updatePool() internal {
        require(stakingAddr != address(0), "staking address not setup");
        if (block.number <= lastRewardBlock) {
            return;
        }
        (uint256 tokenRewardForStaking, uint256 tokenRewardForOthers) = _calculatePendingRewards();
        // mint tokens only if token rewards for staking are not null
        if (tokenRewardForStaking > 0) {
            // It allows protection against potential issues to prevent funds from being locked
            mintedToken.mint(stakingAddr, tokenRewardForStaking);
            mintedToken.mint(tokenSplitter, tokenRewardForOthers);
        }

        // Update last reward block only if it wasn't updated after or at the end block
        if (lastRewardBlock <= endBlock) {
            lastRewardBlock = block.number;
        }
    }

    function _calculatePendingRewards() internal returns (uint256, uint256) {
        if (block.number <= lastRewardBlock) {
            return (0, 0);
        }
        // Calculate multiplier
        uint256 multiplier = _getMultiplier(lastRewardBlock, block.number, endBlock);
        // Calculate rewards for staking and others
        uint256 tokenRewardForStaking = multiplier * rewardPerBlockForStaking;
        uint256 tokenRewardForOthers = multiplier * rewardPerBlockForOthers;

        // Check whether to adjust multipliers and reward per block
        while ((block.number > endBlock) && (currentPhase < (NUMBER_PERIODS - 1))) {
            // Update rewards per block
            _updateRewardsPerBlock(endBlock);

            uint256 previousEndBlock = endBlock;

            // Adjust the end block
            endBlock += stakingPeriod[currentPhase].periodLengthInBlock;

            // Adjust multiplier to cover the missing periods with other lower inflation schedule
            uint256 newMultiplier = _getMultiplier(previousEndBlock, block.number, endBlock);

            // Adjust token rewards
            tokenRewardForStaking += (newMultiplier * rewardPerBlockForStaking);
            tokenRewardForOthers += (newMultiplier * rewardPerBlockForOthers);
        }
        return (tokenRewardForStaking, tokenRewardForOthers);
    }

    function getPendingRewards() external view returns (uint256, uint256) {
        if (block.number <= lastRewardBlock) {
            return (0, 0);
        }
        // shadow state vars to avoid updates
        uint256 tEndBlock = endBlock;
        uint256 tCurrentPhase = currentPhase;
        uint256 tRewardPerBlockForStaking = rewardPerBlockForStaking;
        uint256 tRewardPerBlockForOthers = rewardPerBlockForOthers;
        // Calculate multiplier
        uint256 multiplier = _getMultiplier(lastRewardBlock, block.number, tEndBlock);
        // Calculate rewards for staking and others
        uint256 tokenRewardForStaking = multiplier * tRewardPerBlockForStaking;
        uint256 tokenRewardForOthers = multiplier * tRewardPerBlockForOthers;
        // Check whether to adjust multipliers and reward per block
        while ((block.number > tEndBlock) && (tCurrentPhase < (NUMBER_PERIODS - 1))) {
            // Update rewards per block
            tCurrentPhase++;
            tRewardPerBlockForStaking = stakingPeriod[tCurrentPhase].rewardPerBlockForStaking;
            tRewardPerBlockForOthers = stakingPeriod[tCurrentPhase].rewardPerBlockForOthers;
            uint256 previousEndBlock = tEndBlock;

            // Adjust the end block
            tEndBlock += stakingPeriod[tCurrentPhase].periodLengthInBlock;

            // Adjust multiplier to cover the missing periods with other lower inflation schedule
            uint256 newMultiplier = _getMultiplier(previousEndBlock, block.number, tEndBlock);

            // Adjust token rewards
            tokenRewardForStaking += (newMultiplier * tRewardPerBlockForStaking);
            tokenRewardForOthers += (newMultiplier * tRewardPerBlockForOthers);
        }
        return (tokenRewardForStaking, tokenRewardForOthers);
    }

    function getPendingStakingRewards() external view returns (uint256) {
        if (block.number <= lastRewardBlock) {
            return 0;
        }
        uint256 multiplier = block.number - lastRewardBlock;
        return multiplier * rewardPerBlockForStaking;
    }

    /**
     * @notice Update rewards per block
     * @dev Rewards are halved by 2 (for staking + others)
     */
    function _updateRewardsPerBlock(uint256 _newStartBlock) internal {
        // Update current phase
        currentPhase++;

        // Update rewards per block
        rewardPerBlockForStaking = stakingPeriod[currentPhase].rewardPerBlockForStaking;
        rewardPerBlockForOthers = stakingPeriod[currentPhase].rewardPerBlockForOthers;

        emit NewRewardsPerBlock(
            currentPhase,
            _newStartBlock,
            rewardPerBlockForStaking,
            rewardPerBlockForOthers
        );
    }

    /**
     * @notice Return reward multiplier over the given "from" to "to" block.
     * @param from block to start calculating reward
     * @param to block to finish calculating reward
     * @return the multiplier for the period
     */
    function _getMultiplier(
        uint256 from,
        uint256 to,
        uint256 tEndBlock
    ) internal pure returns (uint256) {
        if (to <= tEndBlock) {
            return to - from;
        } else if (from >= tEndBlock) {
            return 0;
        } else {
            return tEndBlock - from;
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
import {ReentrancyGuard} from "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import {IERC20, SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";

contract FeeDistributor is Ownable, ReentrancyGuard {
    using SafeERC20 for IERC20;

    uint256 public TOTAL_SHARES;
    IERC20 public wcroToken;
    address public treasury;
    address public mintedBoost;
    uint256 public treasuryShares;
    uint256 public mintedBoostShares;

    uint256 public periodEndBlock;
    uint256 public rewardDurationInBlocks;
    uint256 public currentRewardsPerBlock;
    uint256 public lastUpdatedBlock;

    event UpdateTreasury(address _newTreasury, address _oldTreasury);
    event UpdateMintedBoost(address _newMintedBoost, address _oldMintedBoost);
    event UpdateShares(uint256 treasuryShares, uint256 mintedBoostShares);
    event SetupMintedBoost(address mintedBoost);

    /**
     * @notice Constructor
     * @dev this contract is a fee receipient to minted exchange rewards
     * @dev It handles the wcro fee distribution
     * @dev accumlated rewards are distributed per block over a period
     * @param _mintedBoostShares percentage shares of mintedBoost
     * @param _treasuryShares percentage shares of treasury
     * @param _rewardDurationInBlocks duration of each reward round
     */
    constructor(
        address _wcroToken,
        uint256 _mintedBoostShares,
        address _treasury,
        uint256 _treasuryShares,
        uint256 _rewardDurationInBlocks
    ) {
        require(_treasuryShares > 0, "FeeDistributor: treasuryShares is 0");
        require(_mintedBoostShares > 0, "FeeDistributor: mintedBoostShares is 0");
        require(_rewardDurationInBlocks > 0, "FeeDistributor: rewardDurationInBlocks is 0");

        wcroToken = IERC20(_wcroToken);
        treasury = _treasury;
        treasuryShares = _treasuryShares;
        mintedBoostShares = _mintedBoostShares;
        rewardDurationInBlocks = _rewardDurationInBlocks;

        periodEndBlock = block.number + rewardDurationInBlocks;
        lastUpdatedBlock = block.number;
        TOTAL_SHARES = _treasuryShares + _mintedBoostShares;
    }

    function updateTreasury(address _newTreasury) external onlyOwner {
        require(_newTreasury != address(0), "Invalid address");
        require(_newTreasury != treasury, "treasury already exist");
        address _oldTreasury = treasury;
        treasury = _newTreasury;
        emit UpdateTreasury(_newTreasury, _oldTreasury);
    }

    function updateMintedBoost(address _newMintedBoost) external onlyOwner {
        require(_newMintedBoost != address(0), "Invalid address");
        require(_newMintedBoost != mintedBoost, "mintedBoost already exist");
        address _oldmintedBoost = mintedBoost;
        mintedBoost = _newMintedBoost;
        emit UpdateMintedBoost(_newMintedBoost, _oldmintedBoost);
    }

    function updateShares(uint256 _treasuryShares, uint256 _mintedBoostShares) external onlyOwner {
        require(_treasuryShares > 0, "FeeDistributor: treasuryShares is 0");
        require(_mintedBoostShares > 0, "FeeDistributor: mintedBoostShares is 0");
        treasuryShares = _treasuryShares;
        mintedBoostShares = _mintedBoostShares;
        TOTAL_SHARES = _treasuryShares + _mintedBoostShares;
        emit UpdateShares(treasuryShares, mintedBoostShares);
    }

    function updateRewards() external nonReentrant {
        _updateRewards();
    }

    function _updateRewards() internal {
        require(mintedBoost != address(0), "FeeDistributor: mintedBoost doesn't exist");
        if (block.number <= periodEndBlock) {
            _releaseTradingRewards();
        } else {
            // block.number > periodEndBlock implies end of the perious reward round and start of the new
            // to accomdate we distributed pending rewards of previous round,
            // sets the new reward round and distribute the rewards of current reward round
            _releaseTradingRewards();
            _updateRewardPerBlock();
            _releaseTradingRewards();
        }
    }

    /**
     * @notice send wcro reward to MintedBoost
     * @dev this only send the wcro reward for this period, call _updateRewardPerBlock to update to next period
     */
    function _releaseTradingRewards() internal {
        // limits the rewards to the current reward round wrt _lastUpdatedBlock
        (uint256 multiplier, uint256 _lastUpdatedBlock) = _getMultiplier();
        if (currentRewardsPerBlock > 0) {
            uint256 amountToTransfer = multiplier * currentRewardsPerBlock;
            wcroToken.safeTransfer(mintedBoost, amountToTransfer);
        }
        lastUpdatedBlock = _lastUpdatedBlock;
    }

    /**
    * @notice starts new reward round, splits the accumlated rewards and send treasury reward share upfront
              sets the currentRewardsPerBlock for the new reward round
    */
    function _updateRewardPerBlock() internal {
        if (block.number > periodEndBlock) {
            (uint256 tradingRewards, uint256 treasuryRewards) = getRewardShares();
            periodEndBlock = block.number + rewardDurationInBlocks;
            // for gas saving reason, when tradingRewards > 0, treasuryReward will be > 0
            if (tradingRewards > 0) {
                wcroToken.safeTransfer(treasury, treasuryRewards);
                // reward duration = lapsed period from lastUpdatedBlock + rewardDurationInBlocks
                currentRewardsPerBlock = (tradingRewards / (periodEndBlock - lastUpdatedBlock));
            } else {
                currentRewardsPerBlock = 0;
            }
        }
    }

    /**
     * @return rewards between MintedBoost and treasury
     */
    function getRewardShares() public view returns (uint256, uint256) {
        uint256 rewards = wcroToken.balanceOf(address(this));
        uint256 tradingRewards = (rewards * mintedBoostShares) / TOTAL_SHARES;
        uint256 treasuryRewards = rewards - tradingRewards;
        return (tradingRewards, treasuryRewards);
    }

    /**
     * @return pending wcro reward for MintedBoost
     */
    function getPendingRewards() external view returns (uint256) {
        if (mintedBoost == address(0)) {
            return 0;
        }

        if (block.number <= periodEndBlock) {
            (uint256 multiplier, ) = _getMultiplier();
            return multiplier * currentRewardsPerBlock;
        } else {
            // calculate current round reward
            (uint256 multiplier, ) = _getMultiplier();
            uint256 pendingRewardsForCurrentRound = multiplier * currentRewardsPerBlock;

            // calculate next round reward
            uint256 rewards = wcroToken.balanceOf(address(this)) - pendingRewardsForCurrentRound;
            uint256 tradingRewards = (rewards * mintedBoostShares) / TOTAL_SHARES;
            uint256 nextPeriodEndBlock = block.number + rewardDurationInBlocks;
            uint256 nextRewardPerBlock = (tradingRewards / (nextPeriodEndBlock - periodEndBlock));
            uint256 pendingRewardsForNextRound = (block.number - periodEndBlock) * nextRewardPerBlock;

            return pendingRewardsForCurrentRound + pendingRewardsForNextRound;
        }
    }

    function _getMultiplier() internal view returns (uint256, uint256) {
        if (block.number <= periodEndBlock) {
            return (block.number - lastUpdatedBlock, block.number);
        } else {
            // considers only pending rewards in previous round
            return (periodEndBlock - lastUpdatedBlock, periodEndBlock);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library AddressUpgradeable {
    /**
     * @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
     * ====
     *
     * [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://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

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

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "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");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(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) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason 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 {
            // 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 (last updated v4.5.0) (interfaces/draft-IERC1822.sol)

pragma solidity ^0.8.0;

/**
 * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
 * proxy whose upgrades are fully controlled by the current implementation.
 */
interface IERC1822ProxiableUpgradeable {
    /**
     * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
     * address.
     *
     * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
     * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
     * function revert if invoked through a proxy.
     */
    function proxiableUUID() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (proxy/ERC1967/ERC1967Upgrade.sol)

pragma solidity ^0.8.2;

import "../beacon/IBeaconUpgradeable.sol";
import "../../interfaces/draft-IERC1822Upgradeable.sol";
import "../../utils/AddressUpgradeable.sol";
import "../../utils/StorageSlotUpgradeable.sol";
import "../utils/Initializable.sol";

/**
 * @dev This abstract contract provides getters and event emitting update functions for
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
 *
 * _Available since v4.1._
 *
 * @custom:oz-upgrades-unsafe-allow delegatecall
 */
abstract contract ERC1967UpgradeUpgradeable is Initializable {
    function __ERC1967Upgrade_init() internal onlyInitializing {
    }

    function __ERC1967Upgrade_init_unchained() internal onlyInitializing {
    }
    // This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1
    bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;

    /**
     * @dev Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

    /**
     * @dev Emitted when the implementation is upgraded.
     */
    event Upgraded(address indexed implementation);

    /**
     * @dev Returns the current implementation address.
     */
    function _getImplementation() internal view returns (address) {
        return StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value;
    }

    /**
     * @dev Stores a new address in the EIP1967 implementation slot.
     */
    function _setImplementation(address newImplementation) private {
        require(AddressUpgradeable.isContract(newImplementation), "ERC1967: new implementation is not a contract");
        StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
    }

    /**
     * @dev Perform implementation upgrade
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeTo(address newImplementation) internal {
        _setImplementation(newImplementation);
        emit Upgraded(newImplementation);
    }

    /**
     * @dev Perform implementation upgrade with additional setup call.
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeToAndCall(
        address newImplementation,
        bytes memory data,
        bool forceCall
    ) internal {
        _upgradeTo(newImplementation);
        if (data.length > 0 || forceCall) {
            _functionDelegateCall(newImplementation, data);
        }
    }

    /**
     * @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call.
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeToAndCallUUPS(
        address newImplementation,
        bytes memory data,
        bool forceCall
    ) internal {
        // Upgrades from old implementations will perform a rollback test. This test requires the new
        // implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing
        // this special case will break upgrade paths from old UUPS implementation to new ones.
        if (StorageSlotUpgradeable.getBooleanSlot(_ROLLBACK_SLOT).value) {
            _setImplementation(newImplementation);
        } else {
            try IERC1822ProxiableUpgradeable(newImplementation).proxiableUUID() returns (bytes32 slot) {
                require(slot == _IMPLEMENTATION_SLOT, "ERC1967Upgrade: unsupported proxiableUUID");
            } catch {
                revert("ERC1967Upgrade: new implementation is not UUPS");
            }
            _upgradeToAndCall(newImplementation, data, forceCall);
        }
    }

    /**
     * @dev Storage slot with the admin of the contract.
     * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;

    /**
     * @dev Emitted when the admin account has changed.
     */
    event AdminChanged(address previousAdmin, address newAdmin);

    /**
     * @dev Returns the current admin.
     */
    function _getAdmin() internal view returns (address) {
        return StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value;
    }

    /**
     * @dev Stores a new address in the EIP1967 admin slot.
     */
    function _setAdmin(address newAdmin) private {
        require(newAdmin != address(0), "ERC1967: new admin is the zero address");
        StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value = newAdmin;
    }

    /**
     * @dev Changes the admin of the proxy.
     *
     * Emits an {AdminChanged} event.
     */
    function _changeAdmin(address newAdmin) internal {
        emit AdminChanged(_getAdmin(), newAdmin);
        _setAdmin(newAdmin);
    }

    /**
     * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
     * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor.
     */
    bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;

    /**
     * @dev Emitted when the beacon is upgraded.
     */
    event BeaconUpgraded(address indexed beacon);

    /**
     * @dev Returns the current beacon.
     */
    function _getBeacon() internal view returns (address) {
        return StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value;
    }

    /**
     * @dev Stores a new beacon in the EIP1967 beacon slot.
     */
    function _setBeacon(address newBeacon) private {
        require(AddressUpgradeable.isContract(newBeacon), "ERC1967: new beacon is not a contract");
        require(
            AddressUpgradeable.isContract(IBeaconUpgradeable(newBeacon).implementation()),
            "ERC1967: beacon implementation is not a contract"
        );
        StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value = newBeacon;
    }

    /**
     * @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does
     * not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that).
     *
     * Emits a {BeaconUpgraded} event.
     */
    function _upgradeBeaconToAndCall(
        address newBeacon,
        bytes memory data,
        bool forceCall
    ) internal {
        _setBeacon(newBeacon);
        emit BeaconUpgraded(newBeacon);
        if (data.length > 0 || forceCall) {
            _functionDelegateCall(IBeaconUpgradeable(newBeacon).implementation(), data);
        }
    }

    /**
     * @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) private returns (bytes memory) {
        require(AddressUpgradeable.isContract(target), "Address: delegate call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return AddressUpgradeable.verifyCallResult(success, returndata, "Address: low-level delegate call failed");
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol)

pragma solidity ^0.8.0;

/**
 * @dev This is the interface that {BeaconProxy} expects of its beacon.
 */
interface IBeaconUpgradeable {
    /**
     * @dev Must return an address that can be used as a delegate call target.
     *
     * {BeaconProxy} will check that this address is a contract.
     */
    function implementation() external view returns (address);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/StorageSlot.sol)

pragma solidity ^0.8.0;

/**
 * @dev Library for reading and writing primitive types to specific storage slots.
 *
 * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
 * This library helps with reading and writing to such slots without the need for inline assembly.
 *
 * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
 *
 * Example usage to set ERC1967 implementation slot:
 * ```
 * contract ERC1967 {
 *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
 *
 *     function _getImplementation() internal view returns (address) {
 *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
 *     }
 *
 *     function _setImplementation(address newImplementation) internal {
 *         require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
 *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
 *     }
 * }
 * ```
 *
 * _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._
 */
library StorageSlotUpgradeable {
    struct AddressSlot {
        address value;
    }

    struct BooleanSlot {
        bool value;
    }

    struct Bytes32Slot {
        bytes32 value;
    }

    struct Uint256Slot {
        uint256 value;
    }

    /**
     * @dev Returns an `AddressSlot` with member `value` located at `slot`.
     */
    function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
     */
    function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
     */
    function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
     */
    function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-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 IERC20PermitUpgradeable {
    /**
     * @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 v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC20Upgradeable.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20MetadataUpgradeable is IERC20Upgradeable {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

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

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

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

pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";

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

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

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

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}

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

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

interface IMintedToken is IERC20 {
    function SUPPLY_CAP() external view returns (uint256);

    function mint(address account, uint256 amount) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

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

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

pragma solidity ^0.8.0;

import "./IAccessControl.sol";

/**
 * @dev External interface of AccessControlEnumerable declared to support ERC165 detection.
 */
interface IAccessControlEnumerable is IAccessControl {
    /**
     * @dev Returns one of the accounts that have `role`. `index` must be a
     * value between 0 and {getRoleMemberCount}, non-inclusive.
     *
     * Role bearers are not sorted in any particular way, and their ordering may
     * change at any point.
     *
     * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure
     * you perform all queries on the same block. See the following
     * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post]
     * for more information.
     */
    function getRoleMember(bytes32 role, uint256 index) external view returns (address);

    /**
     * @dev Returns the number of accounts that have `role`. Can be used
     * together with {getRoleMember} to enumerate all bearers of a role.
     */
    function getRoleMemberCount(bytes32 role) external view returns (uint256);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (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:
 *
 * ```
 * 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}:
 *
 * ```
 * 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.
 */
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(uint160(account), 20),
                        " 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 (last updated v4.7.0) (utils/structs/EnumerableSet.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

                // Move the last value to the index where the value to delete is
                set._values[toDeleteIndex] = lastValue;
                // Update the index for the moved value
                set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex
            }

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

            // Delete the index for the deleted slot
            delete set._indexes[value];

            return true;
        } else {
            return false;
        }
    }

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

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

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

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

    // Bytes32Set

    struct Bytes32Set {
        Set _inner;
    }

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

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

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

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

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

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

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

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

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

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

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

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

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

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

        return result;
    }

    // UintSet

    struct UintSet {
        Set _inner;
    }

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

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

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

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

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

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

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

        return result;
    }
}

// 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 v4.7.0) (utils/Strings.sol)

pragma solidity ^0.8.0;

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _HEX_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) {
        // Inspired by OraclizeAPI's implementation - MIT licence
        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol

        if (value == 0) {
            return "0";
        }
        uint256 temp = value;
        uint256 digits;
        while (temp != 0) {
            digits++;
            temp /= 10;
        }
        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }
        return string(buffer);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0x00";
        }
        uint256 temp = value;
        uint256 length = 0;
        while (temp != 0) {
            length++;
            temp >>= 8;
        }
        return toHexString(value, length);
    }

    /**
     * @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] = _HEX_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);
    }
}

// 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);
}

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_mintedToken","type":"address"},{"internalType":"uint256","name":"_rewardSharesToUser","type":"uint256"},{"internalType":"uint256","name":"_rewardSharesToStake","type":"uint256"},{"internalType":"uint256[]","name":"_pidsToStake","type":"uint256[]"},{"internalType":"uint256[]","name":"_stakeshares","type":"uint256[]"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"_pid","type":"uint256"}],"name":"AddPool","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":true,"internalType":"uint256","name":"rewardRound","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"RewardsClaim","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"previousAdminRole","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"newAdminRole","type":"bytes32"}],"name":"RoleAdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleGranted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleRevoked","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"TokenWithdrawnOwner","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_newMintedBoost","type":"address"},{"indexed":false,"internalType":"address","name":"_oldMintedBoost","type":"address"}],"name":"UpdateMintedBoost","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"rewardSharesToUser","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"rewardSharesToStake","type":"uint256"}],"name":"UpdateShareDistribution","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"rewardRound","type":"uint256"}],"name":"UpdateTradingRewards","type":"event"},{"inputs":[],"name":"BUFFER_ADMIN_WITHDRAW","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DEFAULT_ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"TOTAL_SHARES","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"UPDATE_REWARD_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_pid","type":"uint256"}],"name":"addPool","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"amountClaimedByUser","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes32[]","name":"merkleProof","type":"bytes32[]"}],"name":"canClaim","outputs":[{"internalType":"bool","name":"","type":"bool"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes32[]","name":"merkleProof","type":"bytes32[]"}],"name":"claim","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"currentRewardRound","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"getRoleMember","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleMemberCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"address","name":"","type":"address"}],"name":"hasUserClaimedForRewardRound","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lastPausedTimestamp","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maximumAmountPerUserInCurrentTree","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"merkleRootOfRewardRound","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"merkleRootUsed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"mintedBoost","outputs":[{"internalType":"contract MintedBoost","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"mintedToken","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pauseDistribution","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"rewardSharesToStake","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rewardSharesToUser","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_newMintedBoost","type":"address"}],"name":"setMintedBoost","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"stakePoolInfo","outputs":[{"internalType":"uint256","name":"shares","type":"uint256"},{"internalType":"bool","name":"active","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"stakePoolLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"stakedPids","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalClaimed","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalReleased","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"unpauseDistribution","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_rewardSharesToUser","type":"uint256"},{"internalType":"uint256","name":"_rewardSharesToStake","type":"uint256"},{"internalType":"uint256[]","name":"_pidsToStake","type":"uint256[]"},{"internalType":"uint256[]","name":"_stakeshares","type":"uint256[]"}],"name":"updateShareDistribution","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"merkleRoot","type":"bytes32"},{"internalType":"uint256","name":"newMaximumAmountPerUser","type":"uint256"}],"name":"updateTradingRewards","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdrawTokenRewards","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

-----Decoded View---------------
Arg [0] : _mintedToken (address): 0x0224010BA2d567ffa014222eD960D1fa43B8C8E1
Arg [1] : _rewardSharesToUser (uint256): 2500
Arg [2] : _rewardSharesToStake (uint256): 7500
Arg [3] : _pidsToStake (uint256[]): 0,1,2
Arg [4] : _stakeshares (uint256[]): 2500,2500,2500

-----Encoded View---------------
13 Constructor Arguments found :
Arg [0] : 0000000000000000000000000224010ba2d567ffa014222ed960d1fa43b8c8e1
Arg [1] : 00000000000000000000000000000000000000000000000000000000000009c4
Arg [2] : 0000000000000000000000000000000000000000000000000000000000001d4c
Arg [3] : 00000000000000000000000000000000000000000000000000000000000000a0
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000120
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000003
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [7] : 0000000000000000000000000000000000000000000000000000000000000001
Arg [8] : 0000000000000000000000000000000000000000000000000000000000000002
Arg [9] : 0000000000000000000000000000000000000000000000000000000000000003
Arg [10] : 00000000000000000000000000000000000000000000000000000000000009c4
Arg [11] : 00000000000000000000000000000000000000000000000000000000000009c4
Arg [12] : 00000000000000000000000000000000000000000000000000000000000009c4