Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

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

import {AccessControl} from "@openzeppelin/contracts/access/AccessControl.sol";
import {ReentrancyGuard} from "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import {IERC20, SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {EnumerableSet} from "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";

import {FeeSharingSystem} from "./FeeSharingSystem.sol";
import {TokenDistributor} from "./TokenDistributor.sol";

import {IRewardConvertor} from "../interfaces/IRewardConvertor.sol";

/**
 * @title FeeSharingSetter
 * @notice It receives LooksRare protocol fees and owns the FeeSharingSystem contract.
 * It can plug to AMMs for converting all received currencies to WETH.
 */
contract FeeSharingSetter is ReentrancyGuard, AccessControl {
    using EnumerableSet for EnumerableSet.AddressSet;
    using SafeERC20 for IERC20;

    // Operator role
    bytes32 public constant OPERATOR_ROLE = keccak256("OPERATOR_ROLE");

    // Min duration for each fee-sharing period (in blocks)
    uint256 public immutable MIN_REWARD_DURATION_IN_BLOCKS;

    // Max duration for each fee-sharing period (in blocks)
    uint256 public immutable MAX_REWARD_DURATION_IN_BLOCKS;

    IERC20 public immutable looksRareToken;

    IERC20 public immutable rewardToken;

    FeeSharingSystem public feeSharingSystem;

    TokenDistributor public immutable tokenDistributor;

    // Reward convertor (tool to convert other currencies to rewardToken)
    IRewardConvertor public rewardConvertor;

    // Last reward block of distribution
    uint256 public lastRewardDistributionBlock;

    // Next reward duration in blocks
    uint256 public nextRewardDurationInBlocks;

    // Reward duration in blocks
    uint256 public rewardDurationInBlocks;

    // Set of addresses that are staking only the fee sharing
    EnumerableSet.AddressSet private _feeStakingAddresses;

    event ConversionToRewardToken(address indexed token, uint256 amountConverted, uint256 amountReceived);
    event FeeStakingAddressesAdded(address[] feeStakingAddresses);
    event FeeStakingAddressesRemoved(address[] feeStakingAddresses);
    event NewFeeSharingSystemOwner(address newOwner);
    event NewRewardDurationInBlocks(uint256 rewardDurationInBlocks);
    event NewRewardConvertor(address rewardConvertor);

    /**
     * @notice Constructor
     * @param _feeSharingSystem address of the fee sharing system
     * @param _minRewardDurationInBlocks minimum reward duration in blocks
     * @param _maxRewardDurationInBlocks maximum reward duration in blocks
     * @param _rewardDurationInBlocks reward duration between two updates in blocks
     */
    constructor(
        address _feeSharingSystem,
        uint256 _minRewardDurationInBlocks,
        uint256 _maxRewardDurationInBlocks,
        uint256 _rewardDurationInBlocks
    ) {
        require(
            (_rewardDurationInBlocks <= _maxRewardDurationInBlocks) &&
                (_rewardDurationInBlocks >= _minRewardDurationInBlocks),
            "Owner: Reward duration in blocks outside of range"
        );

        MIN_REWARD_DURATION_IN_BLOCKS = _minRewardDurationInBlocks;
        MAX_REWARD_DURATION_IN_BLOCKS = _maxRewardDurationInBlocks;

        feeSharingSystem = FeeSharingSystem(_feeSharingSystem);

        rewardToken = feeSharingSystem.rewardToken();
        looksRareToken = feeSharingSystem.looksRareToken();
        tokenDistributor = feeSharingSystem.tokenDistributor();

        rewardDurationInBlocks = _rewardDurationInBlocks;
        nextRewardDurationInBlocks = _rewardDurationInBlocks;

        _setupRole(DEFAULT_ADMIN_ROLE, msg.sender);
    }

    /**
     * @notice Update the reward per block (in rewardToken)
     * @dev It automatically retrieves the number of pending WETH and adjusts
     * based on the balance of LOOKS in fee-staking addresses that exist in the set.
     */
    function updateRewards() external onlyRole(OPERATOR_ROLE) {
        if (lastRewardDistributionBlock > 0) {
            require(block.number > (rewardDurationInBlocks + lastRewardDistributionBlock), "Reward: Too early to add");
        }

        // Adjust for this period
        if (rewardDurationInBlocks != nextRewardDurationInBlocks) {
            rewardDurationInBlocks = nextRewardDurationInBlocks;
        }

        lastRewardDistributionBlock = block.number;

        // Calculate the reward to distribute as the balance held by this address
        uint256 reward = rewardToken.balanceOf(address(this));

        require(reward != 0, "Reward: Nothing to distribute");

        // Check if there is any address eligible for fee-sharing only
        uint256 numberAddressesForFeeStaking = _feeStakingAddresses.length();

        // If there are eligible addresses for fee-sharing only, calculate their shares
        if (numberAddressesForFeeStaking > 0) {
            uint256[] memory looksBalances = new uint256[](numberAddressesForFeeStaking);
            (uint256 totalAmountStaked, ) = tokenDistributor.userInfo(address(feeSharingSystem));

            for (uint256 i = 0; i < numberAddressesForFeeStaking; i++) {
                uint256 looksBalance = looksRareToken.balanceOf(_feeStakingAddresses.at(i));
                totalAmountStaked += looksBalance;
                looksBalances[i] = looksBalance;
            }

            // Only apply the logic if the totalAmountStaked > 0 (to prevent division by 0)
            if (totalAmountStaked > 0) {
                uint256 adjustedReward = reward;

                for (uint256 i = 0; i < numberAddressesForFeeStaking; i++) {
                    uint256 amountToTransfer = (looksBalances[i] * reward) / totalAmountStaked;
                    if (amountToTransfer > 0) {
                        adjustedReward -= amountToTransfer;
                        rewardToken.safeTransfer(_feeStakingAddresses.at(i), amountToTransfer);
                    }
                }

                // Adjust reward accordingly
                reward = adjustedReward;
            }
        }

        // Transfer tokens to fee sharing system
        rewardToken.safeTransfer(address(feeSharingSystem), reward);

        // Update rewards
        feeSharingSystem.updateRewards(reward, rewardDurationInBlocks);
    }

    /**
     * @notice Convert currencies to reward token
     * @dev Function only usable only for whitelisted currencies (where no potential side effect)
     * @param token address of the token to sell
     * @param additionalData additional data (e.g., slippage)
     */
    function convertCurrencyToRewardToken(address token, bytes calldata additionalData)
        external
        nonReentrant
        onlyRole(OPERATOR_ROLE)
    {
        require(address(rewardConvertor) != address(0), "Convert: RewardConvertor not set");
        require(token != address(rewardToken), "Convert: Cannot be reward token");

        uint256 amountToConvert = IERC20(token).balanceOf(address(this));
        require(amountToConvert != 0, "Convert: Amount to convert must be > 0");

        // Adjust allowance for this transaction only
        IERC20(token).safeIncreaseAllowance(address(rewardConvertor), amountToConvert);

        // Exchange token to reward token
        uint256 amountReceived = rewardConvertor.convert(token, address(rewardToken), amountToConvert, additionalData);

        emit ConversionToRewardToken(token, amountToConvert, amountReceived);
    }

    /**
     * @notice Add staking addresses
     * @param _stakingAddresses array of addresses eligible for fee-sharing only
     */
    function addFeeStakingAddresses(address[] calldata _stakingAddresses) external onlyRole(DEFAULT_ADMIN_ROLE) {
        for (uint256 i = 0; i < _stakingAddresses.length; i++) {
            require(!_feeStakingAddresses.contains(_stakingAddresses[i]), "Owner: Address already registered");
            _feeStakingAddresses.add(_stakingAddresses[i]);
        }

        emit FeeStakingAddressesAdded(_stakingAddresses);
    }

    /**
     * @notice Remove staking addresses
     * @param _stakingAddresses array of addresses eligible for fee-sharing only
     */
    function removeFeeStakingAddresses(address[] calldata _stakingAddresses) external onlyRole(DEFAULT_ADMIN_ROLE) {
        for (uint256 i = 0; i < _stakingAddresses.length; i++) {
            require(_feeStakingAddresses.contains(_stakingAddresses[i]), "Owner: Address not registered");
            _feeStakingAddresses.remove(_stakingAddresses[i]);
        }

        emit FeeStakingAddressesRemoved(_stakingAddresses);
    }

    /**
     * @notice Set new reward duration in blocks for next update
     * @param _newRewardDurationInBlocks number of blocks for new reward period
     */
    function setNewRewardDurationInBlocks(uint256 _newRewardDurationInBlocks) external onlyRole(DEFAULT_ADMIN_ROLE) {
        require(
            (_newRewardDurationInBlocks <= MAX_REWARD_DURATION_IN_BLOCKS) &&
                (_newRewardDurationInBlocks >= MIN_REWARD_DURATION_IN_BLOCKS),
            "Owner: New reward duration in blocks outside of range"
        );

        nextRewardDurationInBlocks = _newRewardDurationInBlocks;

        emit NewRewardDurationInBlocks(_newRewardDurationInBlocks);
    }

    /**
     * @notice Set reward convertor contract
     * @param _rewardConvertor address of the reward convertor (set to null to deactivate)
     */
    function setRewardConvertor(address _rewardConvertor) external onlyRole(DEFAULT_ADMIN_ROLE) {
        rewardConvertor = IRewardConvertor(_rewardConvertor);

        emit NewRewardConvertor(_rewardConvertor);
    }

    /**
     * @notice Transfer ownership of fee sharing system
     * @param _newOwner address of the new owner
     */
    function transferOwnershipOfFeeSharingSystem(address _newOwner) external onlyRole(DEFAULT_ADMIN_ROLE) {
        require(_newOwner != address(0), "Owner: New owner cannot be null address");
        feeSharingSystem.transferOwnership(_newOwner);

        emit NewFeeSharingSystemOwner(_newOwner);
    }

    /**
     * @notice See addresses eligible for fee-staking
     */
    function viewFeeStakingAddresses() external view returns (address[] memory) {
        uint256 length = _feeStakingAddresses.length();

        address[] memory feeStakingAddresses = new address[](length);

        for (uint256 i = 0; i < length; i++) {
            feeStakingAddresses[i] = _feeStakingAddresses.at(i);
        }

        return (feeStakingAddresses);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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, _msgSender());
        _;
    }

    /**
     * @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 override returns (bool) {
        return _roles[role].members[account];
    }

    /**
     * @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 {
        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 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.
     */
    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.
     */
    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`.
     */
    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.
     *
     * [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.
     */
    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.
     */
    function _revokeRole(bytes32 role, address account) internal virtual {
        if (hasRole(role, account)) {
            _roles[role].members[account] = false;
            emit RoleRevoked(role, account, _msgSender());
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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 v4.4.1 (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 v4.4.1 (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.
 */
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;

        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;

        assembly {
            result := store
        }

        return result;
    }
}

// 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";

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

/**
 * @title FeeSharingSystem
 * @notice It handles the distribution of fees using
 * WETH along with the auto-compounding of LOOKS.
 */
contract FeeSharingSystem is ReentrancyGuard, Ownable {
    using SafeERC20 for IERC20;

    struct UserInfo {
        uint256 shares; // shares of token staked
        uint256 userRewardPerTokenPaid; // user reward per token paid
        uint256 rewards; // pending rewards
    }

    // Precision factor for calculating rewards and exchange rate
    uint256 public constant PRECISION_FACTOR = 10**18;

    IERC20 public immutable looksRareToken;

    IERC20 public immutable rewardToken;

    TokenDistributor public immutable tokenDistributor;

    // Reward rate (block)
    uint256 public currentRewardPerBlock;

    // Last reward adjustment block number
    uint256 public lastRewardAdjustment;

    // Last update block for rewards
    uint256 public lastUpdateBlock;

    // Current end block for the current reward period
    uint256 public periodEndBlock;

    // Reward per token stored
    uint256 public rewardPerTokenStored;

    // Total existing shares
    uint256 public totalShares;

    mapping(address => UserInfo) public userInfo;

    event Deposit(address indexed user, uint256 amount, uint256 harvestedAmount);
    event Harvest(address indexed user, uint256 harvestedAmount);
    event NewRewardPeriod(uint256 numberBlocks, uint256 rewardPerBlock, uint256 reward);
    event Withdraw(address indexed user, uint256 amount, uint256 harvestedAmount);

    /**
     * @notice Constructor
     * @param _looksRareToken address of the token staked (LOOKS)
     * @param _rewardToken address of the reward token
     * @param _tokenDistributor address of the token distributor contract
     */
    constructor(
        address _looksRareToken,
        address _rewardToken,
        address _tokenDistributor
    ) {
        rewardToken = IERC20(_rewardToken);
        looksRareToken = IERC20(_looksRareToken);
        tokenDistributor = TokenDistributor(_tokenDistributor);
    }

    /**
     * @notice Deposit staked tokens (and collect reward tokens if requested)
     * @param amount amount to deposit (in LOOKS)
     * @param claimRewardToken whether to claim reward tokens
     * @dev There is a limit of 1 LOOKS per deposit to prevent potential manipulation of current shares
     */
    function deposit(uint256 amount, bool claimRewardToken) external nonReentrant {
        require(amount >= PRECISION_FACTOR, "Deposit: Amount must be >= 1 LOOKS");

        // Auto compounds for everyone
        tokenDistributor.harvestAndCompound();

        // Update reward for user
        _updateReward(msg.sender);

        // Retrieve total amount staked by this contract
        (uint256 totalAmountStaked, ) = tokenDistributor.userInfo(address(this));

        // Transfer LOOKS tokens to this address
        looksRareToken.safeTransferFrom(msg.sender, address(this), amount);

        uint256 currentShares;

        // Calculate the number of shares to issue for the user
        if (totalShares != 0) {
            currentShares = (amount * totalShares) / totalAmountStaked;
            // This is a sanity check to prevent deposit for 0 shares
            require(currentShares != 0, "Deposit: Fail");
        } else {
            currentShares = amount;
        }

        // Adjust internal shares
        userInfo[msg.sender].shares += currentShares;
        totalShares += currentShares;

        uint256 pendingRewards;

        if (claimRewardToken) {
            // Fetch pending rewards
            pendingRewards = userInfo[msg.sender].rewards;

            if (pendingRewards > 0) {
                userInfo[msg.sender].rewards = 0;
                rewardToken.safeTransfer(msg.sender, pendingRewards);
            }
        }

        // Verify LOOKS token allowance and adjust if necessary
        _checkAndAdjustLOOKSTokenAllowanceIfRequired(amount, address(tokenDistributor));

        // Deposit user amount in the token distributor contract
        tokenDistributor.deposit(amount);

        emit Deposit(msg.sender, amount, pendingRewards);
    }

    /**
     * @notice Harvest reward tokens that are pending
     */
    function harvest() external nonReentrant {
        // Auto compounds for everyone
        tokenDistributor.harvestAndCompound();

        // Update reward for user
        _updateReward(msg.sender);

        // Retrieve pending rewards
        uint256 pendingRewards = userInfo[msg.sender].rewards;

        // If pending rewards are null, revert
        require(pendingRewards > 0, "Harvest: Pending rewards must be > 0");

        // Adjust user rewards and transfer
        userInfo[msg.sender].rewards = 0;

        // Transfer reward token to sender
        rewardToken.safeTransfer(msg.sender, pendingRewards);

        emit Harvest(msg.sender, pendingRewards);
    }

    /**
     * @notice Withdraw staked tokens (and collect reward tokens if requested)
     * @param shares shares to withdraw
     * @param claimRewardToken whether to claim reward tokens
     */
    function withdraw(uint256 shares, bool claimRewardToken) external nonReentrant {
        require(
            (shares > 0) && (shares <= userInfo[msg.sender].shares),
            "Withdraw: Shares equal to 0 or larger than user shares"
        );

        _withdraw(shares, claimRewardToken);
    }

    /**
     * @notice Withdraw all staked tokens (and collect reward tokens if requested)
     * @param claimRewardToken whether to claim reward tokens
     */
    function withdrawAll(bool claimRewardToken) external nonReentrant {
        _withdraw(userInfo[msg.sender].shares, claimRewardToken);
    }

    /**
     * @notice Update the reward per block (in rewardToken)
     * @dev Only callable by owner. Owner is meant to be another smart contract.
     */
    function updateRewards(uint256 reward, uint256 rewardDurationInBlocks) external onlyOwner {
        // Adjust the current reward per block
        if (block.number >= periodEndBlock) {
            currentRewardPerBlock = reward / rewardDurationInBlocks;
        } else {
            currentRewardPerBlock =
                (reward + ((periodEndBlock - block.number) * currentRewardPerBlock)) /
                rewardDurationInBlocks;
        }

        lastUpdateBlock = block.number;
        periodEndBlock = block.number + rewardDurationInBlocks;

        emit NewRewardPeriod(rewardDurationInBlocks, currentRewardPerBlock, reward);
    }

    /**
     * @notice Calculate pending rewards (WETH) for a user
     * @param user address of the user
     */
    function calculatePendingRewards(address user) external view returns (uint256) {
        return _calculatePendingRewards(user);
    }

    /**
     * @notice Calculate value of LOOKS for a user given a number of shares owned
     * @param user address of the user
     */
    function calculateSharesValueInLOOKS(address user) external view returns (uint256) {
        // Retrieve amount staked
        (uint256 totalAmountStaked, ) = tokenDistributor.userInfo(address(this));

        // Adjust for pending rewards
        totalAmountStaked += tokenDistributor.calculatePendingRewards(address(this));

        // Return user pro-rata of total shares
        return userInfo[user].shares == 0 ? 0 : (totalAmountStaked * userInfo[user].shares) / totalShares;
    }

    /**
     * @notice Calculate price of one share (in LOOKS token)
     * Share price is expressed times 1e18
     */
    function calculateSharePriceInLOOKS() external view returns (uint256) {
        (uint256 totalAmountStaked, ) = tokenDistributor.userInfo(address(this));

        // Adjust for pending rewards
        totalAmountStaked += tokenDistributor.calculatePendingRewards(address(this));

        return totalShares == 0 ? PRECISION_FACTOR : (totalAmountStaked * PRECISION_FACTOR) / (totalShares);
    }

    /**
     * @notice Return last block where trading rewards were distributed
     */
    function lastRewardBlock() external view returns (uint256) {
        return _lastRewardBlock();
    }

    /**
     * @notice Calculate pending rewards for a user
     * @param user address of the user
     */
    function _calculatePendingRewards(address user) internal view returns (uint256) {
        return
            ((userInfo[user].shares * (_rewardPerToken() - (userInfo[user].userRewardPerTokenPaid))) /
                PRECISION_FACTOR) + userInfo[user].rewards;
    }

    /**
     * @notice Check current allowance and adjust if necessary
     * @param _amount amount to transfer
     * @param _to token to transfer
     */
    function _checkAndAdjustLOOKSTokenAllowanceIfRequired(uint256 _amount, address _to) internal {
        if (looksRareToken.allowance(address(this), _to) < _amount) {
            looksRareToken.approve(_to, type(uint256).max);
        }
    }

    /**
     * @notice Return last block where rewards must be distributed
     */
    function _lastRewardBlock() internal view returns (uint256) {
        return block.number < periodEndBlock ? block.number : periodEndBlock;
    }

    /**
     * @notice Return reward per token
     */
    function _rewardPerToken() internal view returns (uint256) {
        if (totalShares == 0) {
            return rewardPerTokenStored;
        }

        return
            rewardPerTokenStored +
            ((_lastRewardBlock() - lastUpdateBlock) * (currentRewardPerBlock * PRECISION_FACTOR)) /
            totalShares;
    }

    /**
     * @notice Update reward for a user account
     * @param _user address of the user
     */
    function _updateReward(address _user) internal {
        if (block.number != lastUpdateBlock) {
            rewardPerTokenStored = _rewardPerToken();
            lastUpdateBlock = _lastRewardBlock();
        }

        userInfo[_user].rewards = _calculatePendingRewards(_user);
        userInfo[_user].userRewardPerTokenPaid = rewardPerTokenStored;
    }

    /**
     * @notice Withdraw staked tokens (and collect reward tokens if requested)
     * @param shares shares to withdraw
     * @param claimRewardToken whether to claim reward tokens
     */
    function _withdraw(uint256 shares, bool claimRewardToken) internal {
        // Auto compounds for everyone
        tokenDistributor.harvestAndCompound();

        // Update reward for user
        _updateReward(msg.sender);

        // Retrieve total amount staked and calculated current amount (in LOOKS)
        (uint256 totalAmountStaked, ) = tokenDistributor.userInfo(address(this));
        uint256 currentAmount = (totalAmountStaked * shares) / totalShares;

        userInfo[msg.sender].shares -= shares;
        totalShares -= shares;

        // Withdraw amount equivalent in shares
        tokenDistributor.withdraw(currentAmount);

        uint256 pendingRewards;

        if (claimRewardToken) {
            // Fetch pending rewards
            pendingRewards = userInfo[msg.sender].rewards;

            if (pendingRewards > 0) {
                userInfo[msg.sender].rewards = 0;
                rewardToken.safeTransfer(msg.sender, pendingRewards);
            }
        }

        // Transfer LOOKS tokens to sender
        looksRareToken.safeTransfer(msg.sender, currentAmount);

        emit Withdraw(msg.sender, currentAmount, pendingRewards);
    }
}

// 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 {ILooksRareToken} from "../interfaces/ILooksRareToken.sol";

/**
 * @title TokenDistributor
 * @notice It handles the distribution of LOOKS token.
 * It auto-adjusts block rewards over a set number of periods.
 */
contract TokenDistributor is ReentrancyGuard {
    using SafeERC20 for IERC20;
    using SafeERC20 for ILooksRareToken;

    struct StakingPeriod {
        uint256 rewardPerBlockForStaking;
        uint256 rewardPerBlockForOthers;
        uint256 periodLengthInBlock;
    }

    struct UserInfo {
        uint256 amount; // Amount of staked tokens provided by user
        uint256 rewardDebt; // Reward debt
    }

    // Precision factor for calculating rewards
    uint256 public constant PRECISION_FACTOR = 10**12;

    ILooksRareToken public immutable looksRareToken;

    address public immutable tokenSplitter;

    // Number of reward periods
    uint256 public immutable NUMBER_PERIODS;

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

    // Accumulated tokens per share
    uint256 public accTokenPerShare;

    // 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;

    // Total amount staked
    uint256 public totalAmountStaked;

    mapping(uint256 => StakingPeriod) public stakingPeriod;

    mapping(address => UserInfo) public userInfo;

    event Compound(address indexed user, uint256 harvestedAmount);
    event Deposit(address indexed user, uint256 amount, uint256 harvestedAmount);
    event NewRewardsPerBlock(
        uint256 indexed currentPhase,
        uint256 startBlock,
        uint256 rewardPerBlockForStaking,
        uint256 rewardPerBlockForOthers
    );
    event Withdraw(address indexed user, uint256 amount, uint256 harvestedAmount);

    /**
     * @notice Constructor
     * @param _looksRareToken LOOKS 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 _looksRareToken,
        address _tokenSplitter,
        uint256 _startBlock,
        uint256[] memory _rewardsPerBlockForStaking,
        uint256[] memory _rewardsPerBlockForOthers,
        uint256[] memory _periodLengthesInBlocks,
        uint256 _numberPeriods
    ) {
        require(
            (_periodLengthesInBlocks.length == _numberPeriods) &&
                (_rewardsPerBlockForStaking.length == _numberPeriods) &&
                (_rewardsPerBlockForStaking.length == _numberPeriods),
            "Distributor: Lengthes must match numberPeriods"
        );

        // 1. Operational checks for supply
        uint256 nonCirculatingSupply = ILooksRareToken(_looksRareToken).SUPPLY_CAP() -
            ILooksRareToken(_looksRareToken).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: Wrong reward parameters");

        // 2. Store values
        looksRareToken = ILooksRareToken(_looksRareToken);
        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;
    }

    /**
     * @notice Deposit staked tokens and compounds pending rewards
     * @param amount amount to deposit (in LOOKS)
     */
    function deposit(uint256 amount) external nonReentrant {
        require(amount > 0, "Deposit: Amount must be > 0");

        // Update pool information
        _updatePool();

        // Transfer LOOKS tokens to this contract
        looksRareToken.safeTransferFrom(msg.sender, address(this), amount);

        uint256 pendingRewards;

        // If not new deposit, calculate pending rewards (for auto-compounding)
        if (userInfo[msg.sender].amount > 0) {
            pendingRewards =
                ((userInfo[msg.sender].amount * accTokenPerShare) / PRECISION_FACTOR) -
                userInfo[msg.sender].rewardDebt;
        }

        // Adjust user information
        userInfo[msg.sender].amount += (amount + pendingRewards);
        userInfo[msg.sender].rewardDebt = (userInfo[msg.sender].amount * accTokenPerShare) / PRECISION_FACTOR;

        // Increase totalAmountStaked
        totalAmountStaked += (amount + pendingRewards);

        emit Deposit(msg.sender, amount, pendingRewards);
    }

    /**
     * @notice Compound based on pending rewards
     */
    function harvestAndCompound() external nonReentrant {
        // Update pool information
        _updatePool();

        // Calculate pending rewards
        uint256 pendingRewards = ((userInfo[msg.sender].amount * accTokenPerShare) / PRECISION_FACTOR) -
            userInfo[msg.sender].rewardDebt;

        // Return if no pending rewards
        if (pendingRewards == 0) {
            // It doesn't throw revertion (to help with the fee-sharing auto-compounding contract)
            return;
        }

        // Adjust user amount for pending rewards
        userInfo[msg.sender].amount += pendingRewards;

        // Adjust totalAmountStaked
        totalAmountStaked += pendingRewards;

        // Recalculate reward debt based on new user amount
        userInfo[msg.sender].rewardDebt = (userInfo[msg.sender].amount * accTokenPerShare) / PRECISION_FACTOR;

        emit Compound(msg.sender, pendingRewards);
    }

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

    /**
     * @notice Withdraw staked tokens and compound pending rewards
     * @param amount amount to withdraw
     */
    function withdraw(uint256 amount) external nonReentrant {
        require(
            (userInfo[msg.sender].amount >= amount) && (amount > 0),
            "Withdraw: Amount must be > 0 or lower than user balance"
        );

        // Update pool
        _updatePool();

        // Calculate pending rewards
        uint256 pendingRewards = ((userInfo[msg.sender].amount * accTokenPerShare) / PRECISION_FACTOR) -
            userInfo[msg.sender].rewardDebt;

        // Adjust user information
        userInfo[msg.sender].amount = userInfo[msg.sender].amount + pendingRewards - amount;
        userInfo[msg.sender].rewardDebt = (userInfo[msg.sender].amount * accTokenPerShare) / PRECISION_FACTOR;

        // Adjust total amount staked
        totalAmountStaked = totalAmountStaked + pendingRewards - amount;

        // Transfer LOOKS tokens to the sender
        looksRareToken.safeTransfer(msg.sender, amount);

        emit Withdraw(msg.sender, amount, pendingRewards);
    }

    /**
     * @notice Withdraw all staked tokens and collect tokens
     */
    function withdrawAll() external nonReentrant {
        require(userInfo[msg.sender].amount > 0, "Withdraw: Amount must be > 0");

        // Update pool
        _updatePool();

        // Calculate pending rewards and amount to transfer (to the sender)
        uint256 pendingRewards = ((userInfo[msg.sender].amount * accTokenPerShare) / PRECISION_FACTOR) -
            userInfo[msg.sender].rewardDebt;

        uint256 amountToTransfer = userInfo[msg.sender].amount + pendingRewards;

        // Adjust total amount staked
        totalAmountStaked = totalAmountStaked - userInfo[msg.sender].amount;

        // Adjust user information
        userInfo[msg.sender].amount = 0;
        userInfo[msg.sender].rewardDebt = 0;

        // Transfer LOOKS tokens to the sender
        looksRareToken.safeTransfer(msg.sender, amountToTransfer);

        emit Withdraw(msg.sender, amountToTransfer, pendingRewards);
    }

    /**
     * @notice Calculate pending rewards for a user
     * @param user address of the user
     * @return Pending rewards
     */
    function calculatePendingRewards(address user) external view returns (uint256) {
        if ((block.number > lastRewardBlock) && (totalAmountStaked != 0)) {
            uint256 multiplier = _getMultiplier(lastRewardBlock, block.number);

            uint256 tokenRewardForStaking = multiplier * rewardPerBlockForStaking;

            uint256 adjustedEndBlock = endBlock;
            uint256 adjustedCurrentPhase = currentPhase;

            // Check whether to adjust multipliers and reward per block
            while ((block.number > adjustedEndBlock) && (adjustedCurrentPhase < (NUMBER_PERIODS - 1))) {
                // Update current phase
                adjustedCurrentPhase++;

                // Update rewards per block
                uint256 adjustedRewardPerBlockForStaking = stakingPeriod[adjustedCurrentPhase].rewardPerBlockForStaking;

                // Calculate adjusted block number
                uint256 previousEndBlock = adjustedEndBlock;

                // Update end block
                adjustedEndBlock = previousEndBlock + stakingPeriod[adjustedCurrentPhase].periodLengthInBlock;

                // Calculate new multiplier
                uint256 newMultiplier = (block.number <= adjustedEndBlock)
                    ? (block.number - previousEndBlock)
                    : stakingPeriod[adjustedCurrentPhase].periodLengthInBlock;

                // Adjust token rewards for staking
                tokenRewardForStaking += (newMultiplier * adjustedRewardPerBlockForStaking);
            }

            uint256 adjustedTokenPerShare = accTokenPerShare +
                (tokenRewardForStaking * PRECISION_FACTOR) /
                totalAmountStaked;

            return (userInfo[user].amount * adjustedTokenPerShare) / PRECISION_FACTOR - userInfo[user].rewardDebt;
        } else {
            return (userInfo[user].amount * accTokenPerShare) / PRECISION_FACTOR - userInfo[user].rewardDebt;
        }
    }

    /**
     * @notice Update reward variables of the pool
     */
    function _updatePool() internal {
        if (block.number <= lastRewardBlock) {
            return;
        }

        if (totalAmountStaked == 0) {
            lastRewardBlock = block.number;
            return;
        }

        // Calculate multiplier
        uint256 multiplier = _getMultiplier(lastRewardBlock, block.number);

        // 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);

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

        // 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
            bool mintStatus = looksRareToken.mint(address(this), tokenRewardForStaking);
            if (mintStatus) {
                accTokenPerShare = accTokenPerShare + ((tokenRewardForStaking * PRECISION_FACTOR) / totalAmountStaked);
            }

            looksRareToken.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;
        }
    }

    /**
     * @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) internal view returns (uint256) {
        if (to <= endBlock) {
            return to - from;
        } else if (from >= endBlock) {
            return 0;
        } else {
            return endBlock - from;
        }
    }
}

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

interface IRewardConvertor {
    function convert(
        address tokenToSell,
        address tokenToBuy,
        uint256 amount,
        bytes calldata additionalData
    ) external returns (uint256);
}

// 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 v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

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

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

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

pragma solidity ^0.8.0;

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";

    /**
     * @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);
    }
}

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

pragma solidity ^0.8.0;

import "./IERC165.sol";

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

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

pragma solidity ^0.8.0;

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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 v4.4.1 (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);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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 Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        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
pragma solidity ^0.8.0;

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

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

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

{
  "optimizer": {
    "enabled": true,
    "runs": 888888
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_feeSharingSystem","type":"address"},{"internalType":"uint256","name":"_minRewardDurationInBlocks","type":"uint256"},{"internalType":"uint256","name":"_maxRewardDurationInBlocks","type":"uint256"},{"internalType":"uint256","name":"_rewardDurationInBlocks","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"token","type":"address"},{"indexed":false,"internalType":"uint256","name":"amountConverted","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amountReceived","type":"uint256"}],"name":"ConversionToRewardToken","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address[]","name":"feeStakingAddresses","type":"address[]"}],"name":"FeeStakingAddressesAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address[]","name":"feeStakingAddresses","type":"address[]"}],"name":"FeeStakingAddressesRemoved","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"newOwner","type":"address"}],"name":"NewFeeSharingSystemOwner","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"rewardConvertor","type":"address"}],"name":"NewRewardConvertor","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"rewardDurationInBlocks","type":"uint256"}],"name":"NewRewardDurationInBlocks","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"},{"inputs":[],"name":"DEFAULT_ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MAX_REWARD_DURATION_IN_BLOCKS","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MIN_REWARD_DURATION_IN_BLOCKS","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"OPERATOR_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"_stakingAddresses","type":"address[]"}],"name":"addFeeStakingAddresses","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"bytes","name":"additionalData","type":"bytes"}],"name":"convertCurrencyToRewardToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"feeSharingSystem","outputs":[{"internalType":"contract FeeSharingSystem","name":"","type":"address"}],"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":"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":[],"name":"lastRewardDistributionBlock","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"looksRareToken","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"nextRewardDurationInBlocks","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"_stakingAddresses","type":"address[]"}],"name":"removeFeeStakingAddresses","outputs":[],"stateMutability":"nonpayable","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":"rewardConvertor","outputs":[{"internalType":"contract IRewardConvertor","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rewardDurationInBlocks","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rewardToken","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_newRewardDurationInBlocks","type":"uint256"}],"name":"setNewRewardDurationInBlocks","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_rewardConvertor","type":"address"}],"name":"setRewardConvertor","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tokenDistributor","outputs":[{"internalType":"contract TokenDistributor","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_newOwner","type":"address"}],"name":"transferOwnershipOfFeeSharingSystem","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"updateRewards","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"viewFeeStakingAddresses","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"}]

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

000000000000000000000000bcd7254a1d759efa08ec7c3291b2e85c5dcc12ce00000000000000000000000000000000000000000000000000000000000003e8000000000000000000000000000000000000000000000000000000000000c3500000000000000000000000000000000000000000000000000000000000001964

-----Decoded View---------------
Arg [0] : _feeSharingSystem (address): 0xBcD7254A1D759EFA08eC7c3291B2E85c5dCC12ce
Arg [1] : _minRewardDurationInBlocks (uint256): 1000
Arg [2] : _maxRewardDurationInBlocks (uint256): 50000
Arg [3] : _rewardDurationInBlocks (uint256): 6500

-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 000000000000000000000000bcd7254a1d759efa08ec7c3291b2e85c5dcc12ce
Arg [1] : 00000000000000000000000000000000000000000000000000000000000003e8
Arg [2] : 000000000000000000000000000000000000000000000000000000000000c350
Arg [3] : 0000000000000000000000000000000000000000000000000000000000001964