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// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.13;

import "./libraries/Math.sol";
import "./libraries/Constants.sol";
import "./interfaces/IMinter.sol";
import "./interfaces/IRewardsDistributor.sol";
import "./interfaces/ISWPx.sol";
import "./interfaces/IVoter.sol";
import "./interfaces/IVotingEscrow.sol";
import "./interfaces/IMasterchef.sol";

import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";

// codifies the minting rules as per ve(3,3), abstracted from the token to support any token that allows minting

contract MinterUpgradeable is IMinter, OwnableUpgradeable {

    bool public isFirstMint;

    uint public EMISSION;
    uint public TAIL_EMISSION;
    uint public REBASE_MAX;
    uint public REBASE_MIN;
    uint public REBASE_STEP;
    uint public currentRebaseRate;
    uint public constant PRECISION = 1000;
    uint public teamRate;
    uint public referralRate;
    uint public surplusTokens;
    uint public constant MAX_TEAM_RATE = 50; // 5%
    uint public constant MAX_REFERRAL_RATE = 100; // 10%

    uint public weekly; // represents a starting weekly emission of 2.0M SWPx (SWPx has 18 decimals)
    uint public active_period;
    bool public isEpochsStarted;
    uint public weekNumber;
    uint public constant LOCK = 86400 * 7 * 52 * 2;

    address public team;
    address public pendingTeam;
    address public referralAddress;

    ISWPx public _swpx;
    IVoter public _voter;
    IVotingEscrow public _ve;
    IRewardsDistributor public _rewards_distributor;
    IMasterchef public masterchef;

    event Mint(address indexed sender, uint weekly, uint circulating_supply, uint circulating_emission);
    event EpochChanged(uint256 epochStartTime);

    constructor() {}

    function initialize(
        address __voter, // the voting & distribution system
        address __ve, // the ve(3,3) system that will be locked into
        address __rewards_distributor, // the distribution system that ensures users aren't diluted
        address _masterchef,
        address _initialMintRecipient
    ) initializer public {
        __Ownable_init();

        team = msg.sender;

        teamRate = 30; // 300 bps = 3%
        referralRate = 50;

        EMISSION = 990;
        TAIL_EMISSION = 2;
        REBASE_MAX = 300;
        REBASE_MIN = 100;
        REBASE_STEP = 10;

        _swpx = ISWPx(IVotingEscrow(__ve).token());
        _voter = IVoter(__voter);
        _ve = IVotingEscrow(__ve);
        _rewards_distributor = IRewardsDistributor(__rewards_distributor);
        masterchef = IMasterchef(_masterchef);

        _swpx.initialMint(_initialMintRecipient);

        weekly = 2_000_000 * 1e18; // represents a starting weekly emission of 2M SWPx (SWPx has 18 decimals)
        isFirstMint = true;
    }

    function startEpoch() external onlyOwner {
        require(!isEpochsStarted, "Already started");

        active_period = (block.timestamp / Constants.EPOCH_LENGTH) * Constants.EPOCH_LENGTH;
        isEpochsStarted = true;

        emit EpochChanged(active_period);
    }

    function setTeam(address _team) external {
        require(msg.sender == team, "not team");
        pendingTeam = _team;
    }

    function acceptTeam() external {
        require(msg.sender == pendingTeam, "not pending team");
        team = pendingTeam;
    }

    function setVoter(address __voter) external {
        require(__voter != address(0));
        require(msg.sender == team, "not team");
        _voter = IVoter(__voter);
    }

    function setTeamRate(uint _teamRate) external {
        require(msg.sender == team, "not team");
        require(_teamRate <= MAX_TEAM_RATE, "rate too high");
        teamRate = _teamRate;
    }

    function setEmission(uint _emission) external {
        require(msg.sender == team, "not team");
        require(_emission <= PRECISION * 150 / 100, "rate too high");
        EMISSION = _emission;
    }

    function setReferralRate(uint _referralRate) external {
        require(msg.sender == team, "not team");
        require(_referralRate <= MAX_REFERRAL_RATE, "rate too high");
        referralRate = _referralRate;
    }

    function setReferralAddress(address _referralAddress) external {
        require(_referralAddress != address(0));
        require(msg.sender == team, "not team");
        referralAddress = _referralAddress;
    }

    // calculate circulating supply as total token supply - locked supply
    function circulating_supply() public view returns (uint) {
        return _swpx.totalSupply() - _swpx.balanceOf(address(_ve));
    }

    // emission calculation is 1% of available supply to mint adjusted by circulating / total supply
    function calculate_emission() public view returns (uint) {
        return (weekly * EMISSION) / PRECISION;
    }

    function circulating_emission() public view returns (uint) {
        return (circulating_supply() * TAIL_EMISSION) / PRECISION;
    }

    // calculate inflation and adjust ve balances accordingly
    function calculate_rebase(uint _weeklyMint) public view returns (uint, uint) {
        if (weekNumber == 0) {
            return (0, 0);
        }

        uint256 _currentRebaseRate = currentRebaseRate;
        if (_currentRebaseRate == 0) {
            _currentRebaseRate = REBASE_MIN;
        } else if (_currentRebaseRate < REBASE_MAX) {
            _currentRebaseRate += REBASE_STEP;
        }

        uint256 rebaseAmount = _weeklyMint * _currentRebaseRate / PRECISION;

        return (_currentRebaseRate, rebaseAmount);
    }

    // update period can only be called once per cycle (1 week)
    function update_period() external returns (uint) {
        uint _period = active_period;
        if (block.timestamp >= _period + Constants.EPOCH_LENGTH && isEpochsStarted) { // only trigger if new week
            _period = (block.timestamp / Constants.EPOCH_LENGTH) * Constants.EPOCH_LENGTH;
            active_period = _period;

            if(!isFirstMint){
                weekly = calculate_emission();
            } else {
                isFirstMint = false;
            }

            uint _rebase;
            (currentRebaseRate, _rebase) = calculate_rebase(weekly);
            uint _teamEmissions = weekly * teamRate / PRECISION;
            uint _referralEmissions = weekly * referralRate / PRECISION;
            uint _required = weekly + surplusTokens;

            uint _gauge = weekly + surplusTokens - _rebase - _teamEmissions - _referralEmissions;
            delete surplusTokens;

            uint _balanceOf = _swpx.balanceOf(address(this));
            if (_balanceOf < _required) {
                _swpx.mint(address(this), _required - _balanceOf);
            }

            if (weekNumber < 12) {
                masterchef.setDistributionRateExtra(_teamEmissions);
                require(_swpx.transfer(address(masterchef), _teamEmissions));
            } else {
                require(_swpx.transfer(team, _teamEmissions));
            }

            if(referralAddress != address(0)) require(_swpx.transfer(referralAddress, _referralEmissions));
            require(_swpx.transfer(address(_rewards_distributor), _rebase));
            _rewards_distributor.checkpoint_token(); // checkpoint token balance that was just minted in rewards distributor
            _rewards_distributor.checkpoint_total_supply(); // checkpoint supply

            require(_swpx.approve(address(_voter), _gauge));
            _voter.notifyRewardAmount(_gauge);

            emit EpochChanged(_period);
            emit Mint(msg.sender, weekly, circulating_supply(), circulating_emission());

            ++weekNumber;
        }
        return _period;
    }

    function returnSurplusTokens(uint256 amount) external {
        require(msg.sender == referralAddress, "!referralAddress");

        surplusTokens += amount;

        require(_swpx.transferFrom(msg.sender, address(this), amount));
    }

    function check() external view returns(bool){
        uint _period = active_period;
        return (block.timestamp >= _period + Constants.EPOCH_LENGTH && isEpochsStarted);
    }

    function period() external view returns(uint){
        return(block.timestamp / Constants.EPOCH_LENGTH) * Constants.EPOCH_LENGTH;
    }
    function setRewardDistributor(address _rewardDistro) external {
        require(msg.sender == team);
        _rewards_distributor = IRewardsDistributor(_rewardDistro);
    }
}

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

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

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

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

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

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

pragma solidity ^0.8.2;

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

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

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

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

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

    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * A reinitializer may be used after the original initialization step. This is essential to configure modules that
     * are added through upgrades and that require initialization.
     *
     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
     * cannot be nested. If one is invoked in the context of another, execution will revert.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     *
     * WARNING: setting the version to 255 will prevent any future reinitialization.
     *
     * Emits an {Initialized} event.
     */
    modifier reinitializer(uint8 version) {
        require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
        _initialized = version;
        _initializing = true;
        _;
        _initializing = false;
        emit Initialized(version);
    }

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

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

    /**
     * @dev Internal function that returns the initialized version. Returns `_initialized`
     */
    function _getInitializedVersion() internal view returns (uint8) {
        return _initialized;
    }

    /**
     * @dev Internal function that returns the initialized version. Returns `_initializing`
     */
    function _isInitializing() internal view returns (bool) {
        return _initializing;
    }
}

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

pragma solidity ^0.8.1;

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

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT

pragma solidity 0.8.13;


interface IMasterchef {
    struct PoolInfo {
        uint256 accRewardPerShare;
        uint256 accRewardPerShareExtra;
        uint256 lastRewardTime;
    }

    function setDistributionRate(uint256 amount) external;

    function setDistributionRateExtra(uint256 amount) external;

    function updatePool() external returns (PoolInfo memory pool);
}

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

interface IMinter {
    function update_period() external returns (uint);
    function check() external view returns(bool);
    function period() external view returns(uint);
    function active_period() external view returns(uint);
}

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

interface IRewardsDistributor {
    function checkpoint_token() external;
    function voting_escrow() external view returns(address);
    function checkpoint_total_supply() external;
    function claimable(uint _tokenId) external view returns (uint);
}

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

interface ISWPx {
    function initialMint(address _recipient) external;
    function totalSupply() external view returns (uint);
    function balanceOf(address) external view returns (uint);
    function approve(address spender, uint value) external returns (bool);
    function transfer(address, uint) external returns (bool);
    function transferFrom(address,address,uint) external returns (bool);
    function mint(address, uint) external returns (bool);
    function minter() external returns (address);
}

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

interface IVoter {
    function _ve() external view returns (address);
    function gauges(address _pair) external view returns (address);
    function isGauge(address _gauge) external view returns (bool);
    function poolForGauge(address _gauge) external view returns (address);
    function factory() external view returns (address);
    function minter() external view returns(address);
    function isWhitelisted(address token) external view returns (bool);
    function notifyRewardAmount(uint amount) external;
    function distributeAll() external;
    function distributeFees(address[] memory _gauges) external;

    function internal_bribes(address _gauge) external view returns (address);
    function external_bribes(address _gauge) external view returns (address);

    function usedWeights(uint id) external view returns(uint);
    function lastVoted(uint id) external view returns(uint);
    function poolVote(uint id, uint _index) external view returns(address _pair);
    function votes(uint id, address _pool) external view returns(uint votes);
    function poolVoteLength(uint tokenId) external view returns(uint);
    
}

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

interface IVotingEscrow {

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

    struct LockedBalance {
        int128 amount;
        uint start;
        uint end;
    }

    function create_lock_for(uint _value, uint _lock_duration, address _to) external returns (uint);

    function locked(uint id) external view returns(LockedBalance memory);
    function tokenOfOwnerByIndex(address _owner, uint _tokenIndex) external view returns (uint);

    function token() external view returns (address);
    function team() external returns (address);
    function epoch() external view returns (uint);
    function point_history(uint loc) external view returns (Point memory);
    function user_point_history(uint tokenId, uint loc) external view returns (Point memory);
    function user_point_epoch(uint tokenId) external view returns (uint);

    function ownerOf(uint) external view returns (address);
    function isApprovedOrOwner(address, uint) external view returns (bool);
    function transferFrom(address, address, uint) external;

    function voted(uint) external view returns (bool);
    function attachments(uint) external view returns (uint);
    function voting(uint tokenId) external;
    function abstain(uint tokenId) external;
    function attach(uint tokenId) external;
    function detach(uint tokenId) external;

    function checkpoint() external;
    function deposit_for(uint tokenId, uint value) external;

    function balanceOfAtNFT(uint _tokenId, uint _block) external view returns (uint);
    function balanceOfNFT(uint _id) external view returns (uint);
    function balanceOf(address _owner) external view returns (uint);
    function totalSupply() external view returns (uint);
    function supply() external view returns (uint);


    function decimals() external view returns(uint8);
}

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

library Constants {
    uint256 internal constant EPOCH_LENGTH = 30 minutes; //7 days;
}

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

library Math {
    function max(uint a, uint b) internal pure returns (uint) {
        return a >= b ? a : b;
    }
    function min(uint a, uint b) internal pure returns (uint) {
        return a < b ? a : b;
    }
    function sqrt(uint y) internal pure returns (uint z) {
        if (y > 3) {
            z = y;
            uint x = y / 2 + 1;
            while (x < z) {
                z = x;
                x = (y / x + x) / 2;
            }
        } else if (y != 0) {
            z = 1;
        }
    }
    function cbrt(uint256 n) internal pure returns (uint256) { unchecked {
        uint256 x = 0;
        for (uint256 y = 1 << 255; y > 0; y >>= 3) {
            x <<= 1;
            uint256 z = 3 * x * (x + 1) + 1;
            if (n / y >= z) {
                n -= y * z;
                x += 1;
            }
        }
        return x;
    }}
}

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

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IRewardsDistributor","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"_swpx","outputs":[{"internalType":"contract ISWPx","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"_ve","outputs":[{"internalType":"contract IVotingEscrow","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"_voter","outputs":[{"internalType":"contract IVoter","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"acceptTeam","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"active_period","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"calculate_emission","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_weeklyMint","type":"uint256"}],"name":"calculate_rebase","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"check","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"circulating_emission","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"circulating_supply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"currentRebaseRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"__voter","type":"address"},{"internalType":"address","name":"__ve","type":"address"},{"internalType":"address","name":"__rewards_distributor","type":"address"},{"internalType":"address","name":"_masterchef","type":"address"},{"internalType":"address","name":"_initialMintRecipient","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"isEpochsStarted","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"isFirstMint","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"masterchef","outputs":[{"internalType":"contract IMasterchef","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pendingTeam","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"period","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"referralAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"referralRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"returnSurplusTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_emission","type":"uint256"}],"name":"setEmission","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_referralAddress","type":"address"}],"name":"setReferralAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_referralRate","type":"uint256"}],"name":"setReferralRate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_rewardDistro","type":"address"}],"name":"setRewardDistributor","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_team","type":"address"}],"name":"setTeam","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_teamRate","type":"uint256"}],"name":"setTeamRate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"__voter","type":"address"}],"name":"setVoter","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"startEpoch","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"surplusTokens","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"team","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"teamRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"update_period","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"weekNumber","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"weekly","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"}]

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