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// SPDX-License-Identifier: AGPL-3.0
pragma solidity >=0.7.5;

interface IERC20 {
    function totalSupply() external view returns (uint256);

    function balanceOf(address account) external view returns (uint256);

    function transfer(address recipient, uint256 amount) external returns (bool);

    function allowance(address owner, address spender) external view returns (uint256);

    function approve(address spender, uint256 amount) external returns (bool);

    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external returns (bool);

    event Transfer(address indexed from, address indexed to, uint256 value);

    event Approval(address indexed owner, address indexed spender, uint256 value);
}

// SPDX-License-Identifier: AGPL-3.0-or-later
pragma solidity 0.7.5;

interface IERC2612Permit {
    /**
     * @dev Sets `amount` as the allowance of `spender` over `owner`'s tokens,
     * given `owner`'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     */
    function permit(
        address owner,
        address spender,
        uint256 amount,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current ERC2612 nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity >=0.7.5;

import "./IERC20.sol";

interface IStakedTHEOToken is IERC20 {
    function rebase(uint256 theoProfit_, uint256 epoch_) external returns (uint256);

    function circulatingSupply() external view returns (uint256);

    function balanceOf(address who) external view override returns (uint256);

    function gonsForBalance(uint256 amount) external view returns (uint256);

    function balanceForGons(uint256 gons) external view returns (uint256);

    function index() external view returns (uint256);
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity >=0.7.5;

interface ITheopetraAuthority {
    /* ========== EVENTS ========== */

    event GovernorPushed(address indexed from, address indexed to, bool _effectiveImmediately);
    event GuardianPushed(address indexed from, address indexed to, bool _effectiveImmediately);
    event PolicyPushed(address indexed from, address indexed to, bool _effectiveImmediately);
    event ManagerPushed(address indexed from, address indexed to, bool _effectiveImmediately);
    event VaultPushed(address indexed from, address indexed to, bool _effectiveImmediately);
    event SignerPushed(address indexed from, address indexed to, bool _effectiveImmediately);

    event GovernorPulled(address indexed from, address indexed to);
    event GuardianPulled(address indexed from, address indexed to);
    event PolicyPulled(address indexed from, address indexed to);
    event ManagerPulled(address indexed from, address indexed to);
    event VaultPulled(address indexed from, address indexed to);
    event SignerPulled(address indexed from, address indexed to);

    /* ========== VIEW ========== */

    function governor() external view returns (address);

    function guardian() external view returns (address);

    function policy() external view returns (address);

    function manager() external view returns (address);

    function vault() external view returns (address);

    function whitelistSigner() external view returns (address);
}

// SPDX-License-Identifier: AGPL-3.0-or-later
pragma solidity 0.7.5;

import "./SafeMath.sol";

library Counters {
    using SafeMath for uint256;

    struct Counter {
        // This variable should never be directly accessed by users of the library: interactions must be restricted to
        // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
        // this feature: see https://github.com/ethereum/solidity/issues/4637
        uint256 _value; // default: 0
    }

    function current(Counter storage counter) internal view returns (uint256) {
        return counter._value;
    }

    function increment(Counter storage counter) internal {
        // The {SafeMath} overflow check can be skipped here, see the comment at the top
        counter._value += 1;
    }

    function decrement(Counter storage counter) internal {
        counter._value = counter._value.sub(1);
    }
}

// SPDX-License-Identifier: AGPL-3.0-or-later
pragma solidity 0.7.5;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }

    // babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
    function sqrrt(uint256 a) internal pure returns (uint256 c) {
        if (a > 3) {
            c = a;
            uint256 b = add(div(a, 2), 1);
            while (b < c) {
                c = b;
                b = div(add(div(a, b), b), 2);
            }
        } else if (a != 0) {
            c = 1;
        }
    }

    /*
     * Expects percentage to be trailed by 00,
     */
    function percentageAmount(uint256 total_, uint8 percentage_) internal pure returns (uint256 percentAmount_) {
        return div(mul(total_, percentage_), 1000);
    }

    /*
     * Expects percentage to be trailed by 00,
     */
    function substractPercentage(uint256 total_, uint8 percentageToSub_) internal pure returns (uint256 result_) {
        return sub(total_, div(mul(total_, percentageToSub_), 1000));
    }

    function percentageOfTotal(uint256 part_, uint256 total_) internal pure returns (uint256 percent_) {
        return div(mul(part_, 100), total_);
    }

    /**
     * Taken from Hypersonic https://github.com/M2629/HyperSonic/blob/main/Math.sol
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow, so we distribute
        return (a / 2) + (b / 2) + (((a % 2) + (b % 2)) / 2);
    }

    function quadraticPricing(uint256 payment_, uint256 multiplier_) internal pure returns (uint256) {
        return sqrrt(mul(multiplier_, payment_));
    }

    function bondingCurve(uint256 supply_, uint256 multiplier_) internal pure returns (uint256) {
        return mul(multiplier_, supply_);
    }
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity 0.7.5;

import "../Interfaces/IStakedTHEOToken.sol";

import "../Types/ERC20Permit.sol";
import "../Types/TheopetraAccessControlled.sol";

contract pTheopetra is IStakedTHEOToken, ERC20Permit, TheopetraAccessControlled {
    using SafeMath for uint256;

    modifier onlyStakingContract() {
        require(msg.sender == stakingContract, "UNAUTHORIZED");
        _;
    }

    address public stakingContract;
    address public initializer;

    event LogSupply(uint256 indexed epoch, uint256 timestamp, uint256 totalSupply);
    event LogRebase(uint256 indexed epoch, uint256 rebase, uint256 index);
    event LogStakingContractUpdated(address stakingContract);
    event SetIndex(uint256 index);

    struct Rebase {
        uint256 epoch;
        uint256 rebase; // 18 decimals
        uint256 totalStakedBefore;
        uint256 totalStakedAfter;
        uint256 amountRebased;
        uint256 index;
        uint256 blockNumberOccured;
    }
    Rebase[] public rebases;

    uint256 public INDEX;

    uint256 private constant MAX_UINT256 = ~uint256(0);
    uint256 private constant INITIAL_FRAGMENTS_SUPPLY = 5000000 * 10**9;

    // TOTAL_GONS is a multiple of INITIAL_FRAGMENTS_SUPPLY so that _gonsPerFragment is an integer.
    // Use the highest value that fits in a uint256 for max granularity.
    uint256 private constant TOTAL_GONS = MAX_UINT256 - (MAX_UINT256 % INITIAL_FRAGMENTS_SUPPLY);

    // MAX_SUPPLY = maximum integer < (sqrt(4*TOTAL_GONS + 1) - 1) / 2
    uint256 private constant MAX_SUPPLY = ~uint128(0); // (2^128) - 1

    uint256 private _gonsPerFragment;
    mapping(address => uint256) private _gonBalances;

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

    address public treasury;

    constructor(address _authority)
        ERC20("Platinum Staked Theo", "pTHEO", 9)
        ERC20Permit()
        TheopetraAccessControlled(ITheopetraAuthority(_authority))
    {
        initializer = msg.sender;
        _totalSupply = INITIAL_FRAGMENTS_SUPPLY;
        _gonsPerFragment = TOTAL_GONS.div(_totalSupply);
    }

    function initialize(address stakingContract_) external returns (bool) {
        require(msg.sender == initializer, "UNAUTHORIZED");
        require(stakingContract_ != address(0), "stakingContract cannot be the zero address");
        stakingContract = stakingContract_;
        _gonBalances[stakingContract] = TOTAL_GONS;

        emit Transfer(address(0x0), stakingContract, _totalSupply);
        emit LogStakingContractUpdated(stakingContract_);

        initializer = address(0);
        return true;
    }

    function setIndex(uint256 _INDEX) external onlyGuardian returns (bool) {
        require(INDEX == 0, "Index already set");
        INDEX = gonsForBalance(_INDEX);
        emit SetIndex(INDEX);
        return true;
    }

    /**
        @notice increases sTHEO supply to increase staking balances relative to profit_
        @param profit_ uint256
        @return uint256
     */
    function rebase(uint256 profit_, uint256 epoch_) external override onlyStakingContract returns (uint256) {
        uint256 rebaseAmount;
        uint256 circulatingSupply_ = circulatingSupply();

        if (profit_ == 0) {
            emit LogSupply(epoch_, block.timestamp, _totalSupply);
            emit LogRebase(epoch_, 0, index());
            return _totalSupply;
        } else if (circulatingSupply_ > 0) {
            rebaseAmount = profit_.mul(_totalSupply).div(circulatingSupply_);
        } else {
            rebaseAmount = profit_;
        }

        _totalSupply = _totalSupply.add(rebaseAmount);

        if (_totalSupply > MAX_SUPPLY) {
            _totalSupply = MAX_SUPPLY;
        }

        _gonsPerFragment = TOTAL_GONS.div(_totalSupply);

        _storeRebase(circulatingSupply_, profit_, epoch_);

        return _totalSupply;
    }

    /**
        @notice emits event with data about rebase
        @param previousCirculating_ uint
        @param profit_ uint
        @param epoch_ uint
        @return bool
     */
    function _storeRebase(
        uint256 previousCirculating_,
        uint256 profit_,
        uint256 epoch_
    ) internal returns (bool) {
        uint256 rebasePercent = previousCirculating_ > 0 ? profit_.mul(1e18).div(previousCirculating_) : 0;

        rebases.push(
            Rebase({
                epoch: epoch_,
                rebase: rebasePercent, // 18 decimals
                totalStakedBefore: previousCirculating_,
                totalStakedAfter: circulatingSupply(),
                amountRebased: profit_,
                index: index(),
                blockNumberOccured: block.number
            })
        );

        emit LogSupply(epoch_, block.timestamp, _totalSupply);
        emit LogRebase(epoch_, rebasePercent, index());

        return true;
    }

    function balanceOf(address who) public view override(IStakedTHEOToken, ERC20) returns (uint256) {
        return _gonBalances[who].div(_gonsPerFragment);
    }

    function gonsForBalance(uint256 amount) public view override returns (uint256) {
        return amount.mul(_gonsPerFragment);
    }

    function balanceForGons(uint256 gons) public view override returns (uint256) {
        return gons.div(_gonsPerFragment);
    }

    // Staking contract holds excess sTHEO
    function circulatingSupply() public view override returns (uint256) {
        return _totalSupply.sub(balanceOf(stakingContract));
    }

    function index() public view override returns (uint256) {
        return balanceForGons(INDEX);
    }

    function transfer(address to, uint256 value) external override(ERC20, IERC20) returns (bool) {
        uint256 gonValue = gonsForBalance(value);
        _gonBalances[msg.sender] = _gonBalances[msg.sender].sub(gonValue);
        _gonBalances[to] = _gonBalances[to].add(gonValue);
        emit Transfer(msg.sender, to, value);
        return true;
    }

    function allowance(address owner_, address spender) public view override(ERC20, IERC20) returns (uint256) {
        return _allowedValue[owner_][spender];
    }

    function transferFrom(
        address from,
        address to,
        uint256 value
    ) external override(ERC20, IERC20) returns (bool) {
        _allowedValue[from][msg.sender] = _allowedValue[from][msg.sender].sub(value);
        emit Approval(from, msg.sender, _allowedValue[from][msg.sender]);

        uint256 gonValue = gonsForBalance(value);
        _gonBalances[from] = _gonBalances[from].sub(gonValue);
        _gonBalances[to] = _gonBalances[to].add(gonValue);
        emit Transfer(from, to, value);

        return true;
    }

    function approve(address spender, uint256 value) external override(ERC20, IERC20) returns (bool) {
        _allowedValue[msg.sender][spender] = value;
        emit Approval(msg.sender, spender, value);
        return true;
    }

    // What gets called in a permit
    function _approve(
        address owner,
        address spender,
        uint256 value
    ) internal virtual override {
        _allowedValue[owner][spender] = value;
        emit Approval(owner, spender, value);
    }

    function increaseAllowance(address spender, uint256 addedValue) external override returns (bool) {
        _allowedValue[msg.sender][spender] = _allowedValue[msg.sender][spender].add(addedValue);
        emit Approval(msg.sender, spender, _allowedValue[msg.sender][spender]);
        return true;
    }

    function decreaseAllowance(address spender, uint256 subtractedValue) external override returns (bool) {
        uint256 oldValue = _allowedValue[msg.sender][spender];
        if (subtractedValue >= oldValue) {
            _allowedValue[msg.sender][spender] = 0;
        } else {
            _allowedValue[msg.sender][spender] = oldValue.sub(subtractedValue);
        }
        emit Approval(msg.sender, spender, _allowedValue[msg.sender][spender]);
        return true;
    }
}

// SPDX-License-Identifier: AGPL-3.0-or-later
pragma solidity >=0.7.5;

import "../Libraries/SafeMath.sol";

import "../Interfaces/IERC20.sol";

abstract contract ERC20 is IERC20 {
    using SafeMath for uint256;

    // TODO comment actual hash value.
    bytes32 private constant ERC20TOKEN_ERC1820_INTERFACE_ID = keccak256("ERC20Token");

    mapping(address => uint256) internal _balances;

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

    uint256 internal _totalSupply;

    string internal _name;

    string internal _symbol;

    uint8 internal immutable _decimals;

    constructor(
        string memory name_,
        string memory symbol_,
        uint8 decimals_
    ) {
        _name = name_;
        _symbol = symbol_;
        _decimals = decimals_;
    }

    function name() public view returns (string memory) {
        return _name;
    }

    function symbol() public view returns (string memory) {
        return _symbol;
    }

    function decimals() public view virtual returns (uint8) {
        return _decimals;
    }

    function totalSupply() public view override returns (uint256) {
        return _totalSupply;
    }

    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    function transfer(address recipient, uint256 amount) external virtual override returns (bool) {
        _transfer(msg.sender, recipient, amount);
        return true;
    }

    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    function approve(address spender, uint256 amount) external virtual override returns (bool) {
        _approve(msg.sender, spender, amount);
        return true;
    }

    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external virtual override returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(
            sender,
            msg.sender,
            _allowances[sender][msg.sender].sub(amount, "ERC20: transfer amount exceeds allowance")
        );
        return true;
    }

    function increaseAllowance(address spender, uint256 addedValue) external virtual returns (bool) {
        _approve(msg.sender, spender, _allowances[msg.sender][spender].add(addedValue));
        return true;
    }

    function decreaseAllowance(address spender, uint256 subtractedValue) external virtual returns (bool) {
        _approve(
            msg.sender,
            spender,
            _allowances[msg.sender][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")
        );
        return true;
    }

    function _transfer(
        address sender,
        address recipient,
        uint256 amount
    ) internal virtual {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(sender, recipient, amount);

        _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
        _balances[recipient] = _balances[recipient].add(amount);
        emit Transfer(sender, recipient, amount);
    }

    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");
        _beforeTokenTransfer(address(0), account, amount);
        _totalSupply = _totalSupply.add(amount);
        _balances[account] = _balances[account].add(amount);
        emit Transfer(address(0), account, amount);
    }

    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

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

        _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
        _totalSupply = _totalSupply.sub(amount);
        emit Transfer(account, address(0), amount);
    }

    function _approve(
        address owner,
        address spender,
        uint256 amount
    ) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

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

    function _beforeTokenTransfer(
        address from_,
        address to_,
        uint256 amount_
    ) internal virtual {}
}

// SPDX-License-Identifier: AGPL-3.0-or-later
pragma solidity 0.7.5;

import "./ERC20.sol";
import "../Interfaces/IERC2612Permit.sol";
import "../Libraries/Counters.sol";

abstract contract ERC20Permit is ERC20, IERC2612Permit {
    using Counters for Counters.Counter;

    mapping(address => Counters.Counter) private _nonces;

    // keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
    bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;

    /**
     * @dev See {IERC2612Permit-permit}.
     *
     */
    function permit(
        address owner,
        address spender,
        uint256 amount,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external virtual override {
        require(block.timestamp <= deadline, "Permit: expired deadline");
        uint256 chainID;
        assembly {
            chainID := chainid()
        }

        bytes32 hashStruct = keccak256(
            abi.encode(PERMIT_TYPEHASH, owner, spender, amount, _nonces[owner].current(), deadline)
        );

        bytes32 _hash = keccak256(abi.encodePacked(uint16(0x1901),
        keccak256(
            abi.encode(
                keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"),
                keccak256(bytes(name())),
                keccak256(bytes("1")), // Version
                chainID,
                address(this)
            )
        ), hashStruct));

        require(uint256(s) <= 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0, "invalid signature 's' value");
        require(v == 27 || v == 28, "invalid signature 'v' value");

        address signer = ecrecover(_hash, v, r, s);
        require(signer != address(0) && signer == owner, "ZeroSwapPermit: Invalid signature");

        _nonces[owner].increment();
        _approve(owner, spender, amount);
    }

    /**
     * @dev See {IERC2612Permit-nonces}.
     */
    function nonces(address owner) external view override returns (uint256) {
        return _nonces[owner].current();
    }
}

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.7.5;

import "../Interfaces/ITheopetraAuthority.sol";

abstract contract TheopetraAccessControlled {
    /* ========== EVENTS ========== */

    event AuthorityUpdated(ITheopetraAuthority indexed authority);

    string constant UNAUTHORIZED = "UNAUTHORIZED"; // save gas

    /* ========== STATE VARIABLES ========== */

    ITheopetraAuthority public authority;

    /* ========== Constructor ========== */

    constructor(ITheopetraAuthority _authority) {
        authority = _authority;
        emit AuthorityUpdated(_authority);
    }

    /* ========== MODIFIERS ========== */

    modifier onlyGovernor() {
        require(msg.sender == authority.governor(), UNAUTHORIZED);
        _;
    }

    modifier onlyGuardian() {
        require(msg.sender == authority.guardian(), UNAUTHORIZED);
        _;
    }

    modifier onlyPolicy() {
        require(msg.sender == authority.policy(), UNAUTHORIZED);
        _;
    }

    modifier onlyManager() {
        require(msg.sender == authority.manager(), UNAUTHORIZED);
        _;
    }

    modifier onlyVault() {
        require(msg.sender == authority.vault(), UNAUTHORIZED);
        _;
    }

    /* ========== GOV ONLY ========== */

    function setAuthority(ITheopetraAuthority _newAuthority) external onlyGovernor {
        authority = _newAuthority;
        emit AuthorityUpdated(_newAuthority);
    }
}

{
  "evmVersion": "istanbul",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs",
    "useLiteralContent": true
  },
  "optimizer": {
    "enabled": true,
    "runs": 2000
  },
  "remappings": [],
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_authority","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"contract ITheopetraAuthority","name":"authority","type":"address"}],"name":"AuthorityUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"epoch","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"rebase","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"index","type":"uint256"}],"name":"LogRebase","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"stakingContract","type":"address"}],"name":"LogStakingContractUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"epoch","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"totalSupply","type":"uint256"}],"name":"LogSupply","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"index","type":"uint256"}],"name":"SetIndex","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"INDEX","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PERMIT_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner_","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"authority","outputs":[{"internalType":"contract ITheopetraAuthority","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"gons","type":"uint256"}],"name":"balanceForGons","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"who","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"circulatingSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"gonsForBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"index","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"stakingContract_","type":"address"}],"name":"initialize","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"initializer","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"profit_","type":"uint256"},{"internalType":"uint256","name":"epoch_","type":"uint256"}],"name":"rebase","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"rebases","outputs":[{"internalType":"uint256","name":"epoch","type":"uint256"},{"internalType":"uint256","name":"rebase","type":"uint256"},{"internalType":"uint256","name":"totalStakedBefore","type":"uint256"},{"internalType":"uint256","name":"totalStakedAfter","type":"uint256"},{"internalType":"uint256","name":"amountRebased","type":"uint256"},{"internalType":"uint256","name":"index","type":"uint256"},{"internalType":"uint256","name":"blockNumberOccured","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract ITheopetraAuthority","name":"_newAuthority","type":"address"}],"name":"setAuthority","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_INDEX","type":"uint256"}],"name":"setIndex","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"stakingContract","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"treasury","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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