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//SPDX-License-Identifier: MIT
pragma solidity =0.8.4;

import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";

import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol";

contract SHOVesting is Initializable, OwnableUpgradeable, ReentrancyGuardUpgradeable {
    using SafeERC20 for IERC20;

    uint32 constant public VERSION = 2;
    uint32 constant internal HUNDRED_PERCENT = 1e6;

    struct User {
        uint120 allocation; // How many tokens user can claim in total without including fee.
        uint120 refundableAmount; // How many refund tokens is user eligible for
        uint16 claimedUnlocksCount; // How many unlocks user has claimed. 
        uint16 eliminatedAfterUnlock; // At which unlock user has been eliminated.
        bool refunded; // Whether user was refunded.
    }

    struct InitParameters {
        IERC20 shoToken; // The vesting token that whitelisted users can claim.
        uint32[] unlockPercentagesDiff; // Array of unlock percentages as differentials.
        uint32[] unlockPeriodsDiff; // Array of unlock periods as differentials.
        uint32 baseFeePercentage1; // Base fee in percentage for users.
        address feeCollector; // EOA that receives fees.
        uint64 startTime; // When users can start claiming.
        IERC20 refundToken; // Refund token address.
        address refundReceiver; // Address receiving refunded tokens.
        uint64 refundStartTime; // When refund starts.
        uint64 refundEndTime; // When refund ends.
    }

    mapping(address => User) public users1;
    mapping(address => bool) public blockedUsers;

    uint32[] public unlockPercentages;
    uint32[] public unlockPeriods;

    IERC20 public shoToken;
    uint64 public startTime;
    address public feeCollector;
    uint32 public baseFeePercentage1;

    IERC20 public refundToken;
    address public refundReceiver;
    uint64 public refundStartTime;
    uint64 public refundEndTime;
    bool public whitelistingAllowed;

    uint16 passedUnlocksCount;
    uint120 public globalTotalAllocation1;
    uint120 public totalRefundedAllocation;

    uint120 public totalRefundableAmount;
    uint120 public totalRefundedAmount;

    uint16 public collectedFeesUnlocksCount;
    uint120 public extraFees1Allocation;
    uint120 public extraFees1AllocationUncollectable;

    event Whitelist(
        address user,
        uint120 allocation,
        uint120 refundableAmount,
        bool blocked
    );

    event Claim(
        address indexed user,
        uint16 currentUnlock,
        uint120 claimedTokens
    );

    event FeeCollection(
        uint16 currentUnlock,
        uint120 totalFee,
        uint120 extraFee
    );

    event UserElimination(
        address user,
        uint16 currentUnlock
    );

    event Update(
        uint16 passedUnlocksCount
    );

    event Refund(
        address user,
        uint refundAmount
    );

    event BlockUsers(
        address[] userAddresses,
        bool state
    );

    modifier onlyWhitelistedUser(address userAddress) {
        require(users1[userAddress].allocation > 0, "SHOVesting: not whitelisted");
        _;
    }

    /**
     * @notice Initializes contract.
     * @param params InitParameters struct.
     */
    function init(
        InitParameters calldata params
    ) external initializer {
        __ReentrancyGuard_init();
        __Ownable_init();

        require(address(params.shoToken) != address(0), "SHOVesting: sho token zero address");
        require(params.unlockPercentagesDiff.length > 0, "SHOVesting: 0 unlock percentages");
        require(params.unlockPeriodsDiff.length == params.unlockPercentagesDiff.length, "SHOVesting: different array lengths");
        require(params.baseFeePercentage1 <= HUNDRED_PERCENT, "SHOVesting: base fee percentage 1 higher than 100%");
        require(params.feeCollector != address(0), "SHOVesting: fee collector zero address");
        require(params.startTime > block.timestamp, "SHOVesting: start time must be in future");

        uint32[] memory _unlockPercentages = _buildArraySum(params.unlockPercentagesDiff);
        uint32[] memory _unlockPeriods = _buildArraySum(params.unlockPeriodsDiff);
        require(_unlockPercentages[_unlockPercentages.length - 1] == HUNDRED_PERCENT, "SHOVesting: invalid unlock percentages");

        require(params.shoToken != params.refundToken, "SHOVesting: same tokens");
        if (address(params.refundToken) != address(0)) {
            require(params.refundStartTime >= params.startTime, "SHOVesting: invalid refundStartTime");
            require(params.refundEndTime > params.refundStartTime, "SHOVesting: invalid refundEndTime");
            require(params.refundReceiver != address(0), "SHOVesting: invalid refundReceiver");
        } else {
            require(params.refundStartTime == 0, "SHOVesting: invalid refundStartTime");
            require(params.refundEndTime == 0, "SHOVesting: invalid refundEndTime");
            require(params.refundReceiver == address(0), "SHOVesting: invalid refundReceiver");
        }

        shoToken = params.shoToken;
        unlockPercentages = _unlockPercentages;
        unlockPeriods = _unlockPeriods;
        baseFeePercentage1 = params.baseFeePercentage1;
        feeCollector = params.feeCollector;
        startTime = params.startTime;
        refundToken = params.refundToken;
        refundReceiver = params.refundReceiver;
        refundStartTime = params.refundStartTime;
        refundEndTime = params.refundEndTime;

        whitelistingAllowed = true;
    }

    /**
     * @notice Allows to withdraw remaining refund token balance.
     */
    function recoverRefundToken() external {
        require(msg.sender == owner() || msg.sender == refundReceiver, "SHOVesting: unauthorized");
        refundToken.safeTransfer(refundReceiver, refundToken.balanceOf(address(this)));
    }

    /** 
     * @notice Owner whitelists addresses their given allocations.
     * @param userAddresses User addresses to whitelist
     * @param allocations Users allocation
     * @param last Disable Whitelisting after last whitelist
    */
    function whitelistUsers(
        address[] calldata userAddresses,
        uint120[] calldata allocations,
        uint120[] calldata refundableAmounts,
        bool[] calldata blocked,
        bool last
    ) external onlyOwner {
        require(whitelistingAllowed, "SHOVesting: whitelisting not allowed anymore");
        require(userAddresses.length != 0, "SHOVesting: zero length array");
        require(userAddresses.length == allocations.length, "SHOVesting: different array lengths");
        require(userAddresses.length == refundableAmounts.length, "SHOVesting: different array lengths");
        require(userAddresses.length == blocked.length, "SHOVesting: different array lengths");

        uint120 _globalTotalAllocation1;
        uint120 _totalRefundableAmount;

        for (uint256 i; i < userAddresses.length; i++) {
            address userAddress = userAddresses[i];
            if (userAddress == feeCollector) {
                globalTotalAllocation1 += allocations[i];
                extraFees1Allocation += _applyBaseFee(allocations[i]);
                continue;
            }

            require(users1[userAddress].allocation == 0, "SHOVesting: already whitelisted");

            users1[userAddress].allocation = allocations[i];
            users1[userAddress].refundableAmount = refundableAmounts[i];
            blockedUsers[userAddress] = blocked[i];
            _globalTotalAllocation1 += allocations[i];
            _totalRefundableAmount += refundableAmounts[i];

            emit Whitelist(userAddresses[i], allocations[i], refundableAmounts[i], blocked[i]);
        }
            
        globalTotalAllocation1 += _globalTotalAllocation1;
        totalRefundableAmount += _totalRefundableAmount;
        
        if (last) {
            whitelistingAllowed = false;
        }
    }

    /**
     * @notice Allows owner to block some wallets from claiming.
     * @dev Used for wallets that don't complete offchain requirements.
     * @param userAddresses User addresses to block/unblock
     * @param state Whether to block/unblock
     */
    function blockUsers(address[] calldata userAddresses, bool state) external onlyOwner {
        require(state == false, "SHOVesting: only unblocking allowed");

        for (uint i; i < userAddresses.length; i++) {
            blockedUsers[userAddresses[i]] = state;
        }
        emit BlockUsers(userAddresses, state);
    }

    /**
     * @notice Whitelisted users can claim their available tokens.
     * @dev There's still the baseFee deducted from their allocation.
     * @param userAddress The user address to claim tokens for.
    */
    function claimUser1(address userAddress) onlyWhitelistedUser(userAddress) public nonReentrant returns (uint120 amountToClaim) {
        update();

        User memory user = users1[userAddress];

        if (userAddress != msg.sender) {
            require(block.timestamp > refundEndTime, "SHOVesting: refund period");
        }

        require(passedUnlocksCount > 0, "SHOVesting: no unlocks passed");
        require(user.claimedUnlocksCount < passedUnlocksCount, "SHOVesting: nothing to claim");
        require(!user.refunded, "SHOVesting: refunded");
        require(!blockedUsers[userAddress], "SHOVesting: blocked");

        uint16 currentUnlock = passedUnlocksCount - 1;
        if (user.eliminatedAfterUnlock > 0) {
            require(user.claimedUnlocksCount < user.eliminatedAfterUnlock, "SHOVesting: nothing to claim");
            currentUnlock = user.eliminatedAfterUnlock - 1;
        }

        uint32 lastUnlockPercentage = user.claimedUnlocksCount > 0 ? unlockPercentages[user.claimedUnlocksCount - 1] : 0;
        amountToClaim = _applyPercentage(user.allocation, unlockPercentages[currentUnlock] - lastUnlockPercentage);
        amountToClaim = _applyBaseFee(amountToClaim);

        user.claimedUnlocksCount = currentUnlock + 1;
        users1[userAddress] = user;
        shoToken.safeTransfer(userAddress, amountToClaim);

        emit Claim(userAddress, currentUnlock, amountToClaim);
    }

    /**
     * @notice Sender claims tokens.
     */
    function claimUser1() external returns (uint120 amountToClaim) {
        return claimUser1(msg.sender);
    }

    /**
     * @notice The sender gets refunded in sale token and forfeits all vested tokens.
     */
    function refund() external nonReentrant {
        update();

        require(block.timestamp >= refundStartTime && block.timestamp <= refundEndTime, "SHOVesting: no refund period");

        address userAddress = msg.sender;
        User storage user = users1[userAddress];

        require(user.claimedUnlocksCount == 0, "SHOVesting: claimed");
        require(user.eliminatedAfterUnlock == 0, "SHOVesting: eliminated");
        require(user.refundableAmount > 0, "SHOVesting: not refundable");
        require(!user.refunded, "SHOVesting: already refunded");

        uint120 refundAmount = user.refundableAmount;
        shoToken.safeTransfer(refundReceiver, user.allocation);
        refundToken.safeTransfer(userAddress, refundAmount);

        totalRefundedAllocation += user.allocation;
        totalRefundedAmount += refundAmount;

        user.refunded = true;
        emit Refund(userAddress, refundAmount);
    }

    /**
     * @notice Removes all the future allocation of passed user addresses.
     * @dev Users can still claim the unlock they were eliminated in.
     * @param userAddresses Whitelisted user addresses to eliminate
     */
    function eliminateUsers1(address[] calldata userAddresses) external onlyOwner {
        update();
        require(passedUnlocksCount > 0, "SHOVesting: no unlocks passed");
        uint16 currentUnlock = passedUnlocksCount - 1;
        require(currentUnlock < unlockPeriods.length - 1, "SHOVesting: eliminating in the last unlock");

        for (uint256 i; i < userAddresses.length; i++) {
            address userAddress = userAddresses[i];
            User memory user = users1[userAddress];
            require(user.allocation > 0, "SHOVesting: not whitelisted");
            require(!user.refunded, "SHOVesting: refunded");
            require(user.eliminatedAfterUnlock == 0, "SHOVesting: already eliminated");

            uint120 userAllocation = _applyBaseFee(user.allocation);
            uint120 uncollectable = _applyPercentage(userAllocation, unlockPercentages[currentUnlock]);

            extraFees1Allocation += userAllocation;
            extraFees1AllocationUncollectable += uncollectable;

            users1[userAddress].eliminatedAfterUnlock = currentUnlock + 1;
            emit UserElimination(userAddress, currentUnlock);
        }
    }

    /**
     * @notice Claims fees from all users.
     * @dev The fees are collectable not depedning on if users are claiming.
     * @dev Anybody can call this but the fees go to the fee collector.
     * @dev If some users are refunded after collecting fees, the fee collector is responsible for rebalancing.
     */ 
    function collectFees() external nonReentrant returns (uint120 baseFee, uint120 extraFee) {
        update();
        require(collectedFeesUnlocksCount < passedUnlocksCount, "SHOVesting: no fees to collect");
        uint16 currentUnlock = passedUnlocksCount - 1;

        uint32 lastUnlockPercentage = collectedFeesUnlocksCount > 0 ? unlockPercentages[collectedFeesUnlocksCount - 1] : 0;
        uint120 globalAllocation1 = _applyPercentage(globalTotalAllocation1 - totalRefundedAllocation, unlockPercentages[currentUnlock] - lastUnlockPercentage);
        baseFee = _applyPercentage(globalAllocation1, baseFeePercentage1);

        uint120 extraFees1AllocationTillNow = _applyPercentage(extraFees1Allocation, unlockPercentages[currentUnlock]);
        extraFee = extraFees1AllocationTillNow - extraFees1AllocationUncollectable;
        extraFees1AllocationUncollectable = extraFees1AllocationTillNow;

        uint120 totalFee = baseFee + extraFee;
        collectedFeesUnlocksCount = currentUnlock + 1;
        shoToken.safeTransfer(feeCollector, totalFee);
        emit FeeCollection(currentUnlock, totalFee, extraFee);
    }

    /**  
     * @notice Updates passedUnlocksCount.
     */
    function update() public {
        uint16 _passedUnlocksCount = getPassedUnlocksCount();
        if (_passedUnlocksCount > passedUnlocksCount) {
            passedUnlocksCount = _passedUnlocksCount;
            emit Update(_passedUnlocksCount);
        }
    }

    // PUBLIC VIEW FUNCTIONS

    function getPassedUnlocksCount() public view returns (uint16 _passedUnlocksCount) {
        require(block.timestamp >= startTime, "SHOVesting: before startTime");
        uint256 timeSinceStart = block.timestamp - startTime;
        uint256 maxReleases = unlockPeriods.length;
        _passedUnlocksCount = passedUnlocksCount;

        while (_passedUnlocksCount < maxReleases && timeSinceStart >= unlockPeriods[_passedUnlocksCount]) {
            _passedUnlocksCount++;
        }
    }

    function getTotalUnlocksCount() public view returns (uint16 totalUnlocksCount) {
        return uint16(unlockPercentages.length);
    }

    // PRIVATE FUNCTIONS

    function _applyPercentage(uint120 value, uint32 percentage) private pure returns (uint120) {
        return uint120(uint256(value) * percentage / HUNDRED_PERCENT);
    }

    function _applyBaseFee(uint120 value) private view returns (uint120) {
        return value - _applyPercentage(value, baseFeePercentage1);
    }

    function _buildArraySum(uint32[] memory diffArray) internal pure returns (uint32[] memory) {
        uint256 len = diffArray.length;
        uint32[] memory sumArray = new uint32[](len);
        uint32 lastSum = 0;
        for (uint256 i; i < len; i++) {
            if (i > 0) {
                lastSum = sumArray[i - 1];
            }
            sumArray[i] = lastSum + diffArray[i];
        }
        return sumArray;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (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. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

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

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

    /**
     * @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 (last updated v4.9.0) (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]
 * ```solidity
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 *
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev 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.
     *
     * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
     * constructor.
     *
     * Emits an {Initialized} event.
     */
    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.
     *
     * A reinitializer may be used after the original initialization step. This is essential to configure modules that
     * are added through upgrades and that require initialization.
     *
     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
     * cannot be nested. If one is invoked in the context of another, execution will revert.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     *
     * WARNING: setting the version to 255 will prevent any future reinitialization.
     *
     * Emits an {Initialized} event.
     */
    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.
     *
     * Emits an {Initialized} event the first time it is successfully executed.
     */
    function _disableInitializers() internal virtual {
        require(!_initializing, "Initializable: contract is initializing");
        if (_initialized != type(uint8).max) {
            _initialized = type(uint8).max;
            emit Initialized(type(uint8).max);
        }
    }

    /**
     * @dev Returns the highest version that has been initialized. See {reinitializer}.
     */
    function _getInitializedVersion() internal view returns (uint8) {
        return _initialized;
    }

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

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

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

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

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

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

    /**
     * @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 (last updated v4.9.0) (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
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

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

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, "Address: low-level call failed");
    }

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

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

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

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

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

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

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

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

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

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

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

pragma solidity ^0.8.0;
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
// OpenZeppelin Contracts v4.4.0 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @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 v4.4.0 (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @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 `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, 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 `sender` to `recipient` 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 sender,
        address recipient,
        uint256 amount
    ) external returns (bool);

    /**
     * @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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.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));
        }
    }

    /**
     * @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
// OpenZeppelin Contracts v4.4.0 (utils/Address.sol)

pragma solidity ^0.8.0;

/**
 * @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
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        assembly {
            size := extcodesize(account)
        }
        return size > 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

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

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

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IERC20","name":"shoToken","type":"address"},{"internalType":"uint32[]","name":"unlockPercentagesDiff","type":"uint32[]"},{"internalType":"uint32[]","name":"unlockPeriodsDiff","type":"uint32[]"},{"internalType":"uint32","name":"baseFeePercentage1","type":"uint32"},{"internalType":"address","name":"feeCollector","type":"address"},{"internalType":"uint64","name":"startTime","type":"uint64"},{"internalType":"contract IERC20","name":"refundToken","type":"address"},{"internalType":"address","name":"refundReceiver","type":"address"},{"internalType":"uint64","name":"refundStartTime","type":"uint64"},{"internalType":"uint64","name":"refundEndTime","type":"uint64"}],"internalType":"struct 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IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"shoToken","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"startTime","outputs":[{"internalType":"uint64","name":"","type":"uint64"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalRefundableAmount","outputs":[{"internalType":"uint120","name":"","type":"uint120"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalRefundedAllocation","outputs":[{"internalType":"uint120","name":"","type":"uint120"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalRefundedAmount","outputs":[{"internalType":"uint120","name":"","type":"uint120"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"unlockPercentages","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"unlockPeriods","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"update","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"users1","outputs":[{"internalType":"uint120","name":"allocation","type":"uint120"},{"internalType":"uint120","name":"refundableAmount","type":"uint120"},{"internalType":"uint16","name":"claimedUnlocksCount","type":"uint16"},{"internalType":"uint16","name":"eliminatedAfterUnlock","type":"uint16"},{"internalType":"bool","name":"refunded","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"userAddresses","type":"address[]"},{"internalType":"uint120[]","name":"allocations","type":"uint120[]"},{"internalType":"uint120[]","name":"refundableAmounts","type":"uint120[]"},{"internalType":"bool[]","name":"blocked","type":"bool[]"},{"internalType":"bool","name":"last","type":"bool"}],"name":"whitelistUsers","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"whitelistingAllowed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"}]

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