Contract

Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/*


                                               `:o+                        
                                            .:oyyys                        
                                         `:oyyyyyyy                        
                                       .+yyyyyyyyyy                        
                                    `:oyyyyyyyyyyyy                        
                                  `:syyyyyyyyyyyyyo                        
                                `/syyyyyyyyyyyyyyy/                        
                              `:syyyyyyyyyyyyyyyyy-                        
                             -oyyyyyyyyyyyyyyyyyys                         
                           `+yyyyyyyyyyyyyyyyyyyy:                         
                          :syyyyyyyyyyyyyyyyyyyys                          
                        `+yyyyyyyyyyyyyyyyyyyyyy.                          
                       -syyyyyyyyyyyyyyyyyyyyyy:                           
                      :yyyyyyyyyyyyyyyyyyyyyyy/                            
                     +yyyyyyyyyyyyyyyyyyyyyyy/                             
                    oyyyyyyyyyyyyyyyyyyyyyyy:                              
                  `oyyyyyyyyyyyyyyyyyyyyyyy-                               
                  oyyyyyyyyyyyyyyyyyyyyyyo`                                
                 +yyyyyyyyyyyyyyyyyyyyys:                                  
                /yyyyyyyyyyyyyyyyyyyyy/`                                   
               -yyyyyyyyyyyyyyyyyyyy+.                                     
              `syyyyyyyyyyyyyyyyys/.                                       
              +yyyyyyyyyyyyyyyyyo/:.     .:-..`                            
             -yyyyyyyyyyyyyyyyyyyo.    `/yyyyyso+:.`                       
             syyyyyyyyyyyyyyyyys:    `:syyyyyyyyyyys+-`                    
            -yyyyyyyyyyyyyyyyy+`    .oyyyyyyyyyyyyyyyyy+-`                 
            oyyyyyyyyyyyyyyyy:    `/yyyyyyyyyyyyyyyyyyyyys:`               
           .yyyyyyyyyyyyyyyo.    .oyyyyyyyyyyyyyyyyyyyyyyyys:              
           /yyyyyyyyyyyyyy+     :yyyyyyyyyyyyyyyyyyyyyyyyyyyyo.            
           oyyyyyyyyyyyyy/     /yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy:           
           yyyyyyyyyyyyy:      ``..-:/+oyyyyyyyyyyyyyyyyyyyyyyyy+          
          .yyyyyyyyyyyy-                 .:+oyyyyyyyyyyyyyyyyyyyy+         
          -yyyyyyyyyyy:                      `:oyyyyyyyyyyyyyyyyyy:        
          :yyyyyyyyyy/                          `/syyyyyyyyyyyyyyyy.       
          /yyyyyyyyy+                             `:yyyyyyyyyyyyyyy+       
          :yyyyyyyys`                      `        :yyyyyyyyyyyyyyy`      
          :yyyyyyyy.                      -ss+.      oyyyyyyyyyyyyyy-      
          -yyyyyyy/                       -yyyy-     -yyyyyyyyyyyyyy/      
          .yyyyyys`                        -osys     `yyyyyyyyyyyyyy/      
           yyyyyy:                           `.`      syyyyyyyyyyyyy:      
           oyyyys                                     oyyyyyyyyyyyyy.      
           :yyyy:                                     oyyyyyyyyyyyys       
           `yyyy`    :`                               yyyyyyyyyyyyy:       
            +yyo    `yy+-`                           .yyyyyyyyyyyys        
            .yy:    :yyyyyo:.                        +yyyyyyyyyyyy.        
             +y.    oyyyyyyyyyo+:-.`           `.-/+syyyyyyyyyyyy.         
             `y`    yyyyyyyyyyyyyyyyyssoooossyyyyyyyyyyyyyyyyyys.          
              :    `yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyo`           
                   .yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyys:             
                   -yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyys/`              
                   -yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyys/`                
                   `/oyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyys+-`                  
                      .:+syyyyyyyyyyyyyyyyyyyyyyyso/-`                     
                         `.-:+osssyyyyyyyssss+/:.`                         
                                ``........``                               
                                                                           
                                                                           
                                                                           
   osssssssssssso+-         +sssssssssssso+-       -ssss+          `sssso` 
   mMMMMMMMMMMMMMMMNy.      hMMMMMMMMMMMMMMMNs`     :mMMMh`       :mMMMy`  
   mMMMy//////+oymMMMN:     hMMMy///////+yNMMMd      .hMMMm:     oNMMN+    
   mMMMo         `hMMMm     hMMMo         :MMMM-       +NMMNo  .hNMMd-     
   mMMMo          /MMMM`    hMMMo         /MMMm`        -dMMNh/mMMNs`      
   mMMMo         .hMMMh     hMMMy///////ohNMNh-          `yNMMNMMm/        
   mMMMh+++++++ohmMMNh.     hMMMNNNNNNNMMMMNy:`           `yMMMMN:         
   mMMMMMMMMMMMMMNmy/`      hMMMhooooooosyhNMNd/         `sNMMMMMm/        
   mMMMdsssssmMMMd-         hMMMo         `-mMMN:       -dMMNy+mMMNs`      
   mMMMo     -hNMMd:        hMMMo          `dMMMs     `+mMMNo` -dMMMd-     
   mMMMo      `oNMMNo`      hMMMs........-/yNMMN:    .yNMMd:    `sNMMm+    
   mMMMo        :mMMMh.     hMMMNmmmmmmNNNMMMNd/    :mMMNy.       /mMMNy`  
   hmmm+         .hmmmd-    ymmmmmmmmmmmmmdyo:`    +mmmm+          -dmmmh. 
                                                                           

A cornerstone of the Carbon ecosystem of products, the RBX token is used for
general utility purposes across our multi-token staking platform, cross-chain DEX,
leveraged liquidity pools, token launchpads, escrow tools, our decentralized fiat 
on/off ramp, and more.

Holding RBX entitles you to rewards from the revenue generated across each and
every product, special voting rights, exclusive seniority-based privileges, and the
ability to directly burn your tokens into Ether through the use of our RBX Converter.

For more information and/or business partnership agreements, please visit our 
website or contact us directly:

Web: https://rbx.ae
Email: [email protected]
Telegram: @RBXtoken
 

*/

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.2;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Snapshot.sol";
import "@openzeppelin/contracts/access/AccessControl.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/draft-ERC20Permit.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "./uni.sol";


contract RBX is ERC20, ERC20Burnable, ERC20Snapshot, AccessControl, ERC20Permit, ERC20Votes {
    using SafeERC20 for IERC20;
    
    bool public swapInProgress;

    struct LiquidityPairs {
      address pair;
      address router;
      address base;
    }

    bytes32 public constant AUX_ADMIN = keccak256("AUX_ADMIN");
    bytes32 public constant SNAPSHOT_ROLE = keccak256("SNAPSHOT_ROLE");

    event SetPair(address indexed pair, address indexed router);
    event WhitelistAddress(address indexed account, bool isExcluded);

    mapping(address => bool) private _whiteListed;
    mapping(address => bool) private _blacklisted;

    mapping(address => LiquidityPairs) public _routerPairs;

    uint256 public fundingFee = 20;
    uint256 public tokenThreshold = 100000 * 10 ** decimals();
    uint256 public snapStamp;

    address payable public fundingWallet;

    bool private swapping;
    bool public fundingEnabled = true;

    constructor() ERC20("RBX", "RBX") ERC20Permit("RBX") {
        _setupRole(DEFAULT_ADMIN_ROLE, msg.sender);
        _setupRole(AUX_ADMIN, msg.sender);
        _setupRole(SNAPSHOT_ROLE, msg.sender);

        _mint(msg.sender, 100000000 * 10 ** decimals());

        fundingWallet = payable(msg.sender);

        whitelistAddress(msg.sender, true);
        whitelistAddress(address(this), true);
        //whitelistAddress(address(fundingWallet), true);

        snapStamp = block.timestamp;
    }

    function snapshot() public {
        require(
          hasRole(DEFAULT_ADMIN_ROLE, msg.sender) ||
          hasRole(AUX_ADMIN, msg.sender)
          , "Insufficient privileges"
        );
        _snapshot();
    }

    function _beforeTokenTransfer(address from, address to, uint256 amount)
        internal
        override(ERC20, ERC20Snapshot)
    {
        super._beforeTokenTransfer(from, to, amount);
    }

    function whitelistAddress(address account, bool setting) public {
        require(
          hasRole(DEFAULT_ADMIN_ROLE, msg.sender) ||
          hasRole(AUX_ADMIN, msg.sender)
          , "Insufficient privileges"
        );
        require(_whiteListed[account] != setting, "RBX: Account already at setting");
        _whiteListed[account] = setting;

        emit WhitelistAddress(account, setting);
    }

    function _transfer(address sender, address recipient, uint256 amount) internal override(ERC20) {
        if(swapInProgress)
            require(_whiteListed[sender], "Token swap still in progress!");

        require(!_blacklisted[sender] && !_blacklisted[recipient], "Blacklisted address given");

        uint256 contractBalance = balanceOf(address(this));

        uint256 thresholdSell = contractBalance >= tokenThreshold ? tokenThreshold : contractBalance;

        if (
            fundingEnabled &&
            !swapping &&
            _routerPairs[recipient].pair == recipient &&
            !_whiteListed[sender] &&
            !_whiteListed[recipient]
        ) {
            uint256 fees = amount * fundingFee / 1000;
            amount -= fees;

            super._transfer(sender, address(this), fees);
            swapTokensByPair(fees + thresholdSell, recipient);
        }

        super._transfer(sender, recipient, amount);

        if(block.timestamp >= snapStamp + 1 days){
          _snapshot();
          snapStamp = block.timestamp;
        }
        
    }


    //TODO: ADD APPROVE FUNCTION FOR OTHER ROUTERS

    function swapTokensByPair(uint256 tokenAmount, address pair) private {
        swapping = true;

        LiquidityPairs memory currentPair = _routerPairs[pair];

        address path1 = currentPair.base;
        IUniswapV2Router02 router = IUniswapV2Router02(currentPair.router);

        // generate the pair path of token from current pair
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = path1;

        _approve(address(this), address(router), tokenAmount);

        // make the swap

        if(currentPair.base == router.WETH()){
          router.swapExactTokensForETHSupportingFeeOnTransferTokens(
              tokenAmount,
              0, // accept any amount
              path,
              fundingWallet,
              block.timestamp
          );
        } else {
          router.swapExactTokensForTokensSupportingFeeOnTransferTokens(
              tokenAmount,
              0, // accept any amount
              path,
              fundingWallet,
              block.timestamp
          );
        }

        swapping = false;
    }

    function _addPair(address pair, address router, address base) public {
        require(
          hasRole(DEFAULT_ADMIN_ROLE, msg.sender) ||
          hasRole(AUX_ADMIN, msg.sender)
          , "Insufficient privileges"
        );

        _routerPairs[pair].pair = pair;
        _routerPairs[pair].router = router;
        _routerPairs[pair].base = base;

        emit SetPair(pair, router);
    }

    function setTokenThreshold(uint256 _tokenThreshold) external onlyRole(DEFAULT_ADMIN_ROLE) {
        require(
          hasRole(DEFAULT_ADMIN_ROLE, msg.sender) ||
          hasRole(AUX_ADMIN, msg.sender)
          , "Insufficient privileges"
        );

        tokenThreshold = _tokenThreshold;
    }

    function setFundingSells(bool _setting) external onlyRole(DEFAULT_ADMIN_ROLE) {
        require(
          hasRole(DEFAULT_ADMIN_ROLE, msg.sender) ||
          hasRole(AUX_ADMIN, msg.sender)
          , "Insufficient privileges"
        );

        fundingEnabled = _setting;
    }

    function setFundingWallet(address payable _wallet) external onlyRole(DEFAULT_ADMIN_ROLE) {
        fundingWallet = _wallet;
        _whiteListed[address(_wallet)] = true;
    }

    function blacklistAddress(address account, bool value) external onlyRole(DEFAULT_ADMIN_ROLE) {
        require(
          hasRole(DEFAULT_ADMIN_ROLE, msg.sender) ||
          hasRole(AUX_ADMIN, msg.sender)
          , "Insufficient privileges"
        );
        _blacklisted[account] = value;
    }

    function setSwapInProgress(bool _swapInProgress) external onlyRole(DEFAULT_ADMIN_ROLE) {
        swapInProgress = _swapInProgress;
    }
    // The following functions are overrides required by Solidity.

    function _afterTokenTransfer(address from, address to, uint256 amount)
        internal
        override(ERC20, ERC20Votes)
    {
        super._afterTokenTransfer(from, to, amount);
    }


    function _burn(address account, uint256 amount)
        internal
        override(ERC20, ERC20Votes)
    {
        super._burn(account, amount);
    }
    
    // internal-only function, required to override imports properly
    function _mint(address account, uint256 amount)
        internal
        override(ERC20, ERC20Votes)
    {
        super._mint(account, amount);
    }

    function rescueTokens(address recipient, address token, uint256 amount) public returns(bool) {
        require(
          hasRole(DEFAULT_ADMIN_ROLE, msg.sender) ||
          hasRole(AUX_ADMIN, msg.sender)
          , "Insufficient privileges"
        );

        require(!(_routerPairs[token].pair == token), "Can't transfer out LP tokens!");
        require(token != address(this), "Can't transfer out contract tokens!");

        IERC20(token).transfer(recipient, amount); //use of the _ERC20 traditional transfer
        
        return true;
    }

    function rescueTokensSafe(address recipient, IERC20 token, uint256 amount) public returns(bool) {
        require(
          hasRole(DEFAULT_ADMIN_ROLE, msg.sender) ||
          hasRole(AUX_ADMIN, msg.sender)
          , "Insufficient privileges"
        );

        require(!(_routerPairs[address(token)].pair == address(token)), "Can't transfer out LP tokens!");
        require(address(token) != address(this), "Can't transfer out contract tokens!");
        
        token.safeTransfer(recipient, amount); //use of the _ERC20 traditional transfer
        
        return true;
    }

    function rescueEth(address payable recipient) public {
        require(
          hasRole(DEFAULT_ADMIN_ROLE, msg.sender)
          , "Insufficient privileges"
        );
        recipient.transfer(address(this).balance);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.5.0;

interface IUniswapV2Factory {
    event PairCreated(address indexed token0, address indexed token1, address pair, uint);

    function feeTo() external view returns (address);
    function feeToSetter() external view returns (address);

    function getPair(address tokenA, address tokenB) external view returns (address pair);
    function allPairs(uint) external view returns (address pair);
    function allPairsLength() external view returns (uint);

    function createPair(address tokenA, address tokenB) external returns (address pair);

    function setFeeTo(address) external;
    function setFeeToSetter(address) external;
}


pragma solidity >=0.5.0;

interface IUniswapV2Pair {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    function name() external pure returns (string memory);
    function symbol() external pure returns (string memory);
    function decimals() external pure returns (uint8);
    function totalSupply() external view returns (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);

    function approve(address spender, uint value) external returns (bool);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(address from, address to, uint value) external returns (bool);

    function DOMAIN_SEPARATOR() external view returns (bytes32);
    function PERMIT_TYPEHASH() external pure returns (bytes32);
    function nonces(address owner) external view returns (uint);

    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;

    event Mint(address indexed sender, uint amount0, uint amount1);
    event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
    event Swap(
        address indexed sender,
        uint amount0In,
        uint amount1In,
        uint amount0Out,
        uint amount1Out,
        address indexed to
    );
    event Sync(uint112 reserve0, uint112 reserve1);

    function MINIMUM_LIQUIDITY() external pure returns (uint);
    function factory() external view returns (address);
    function token0() external view returns (address);
    function token1() external view returns (address);
    function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
    function price0CumulativeLast() external view returns (uint);
    function price1CumulativeLast() external view returns (uint);
    function kLast() external view returns (uint);

    function mint(address to) external returns (uint liquidity);
    function burn(address to) external returns (uint amount0, uint amount1);
    function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
    function skim(address to) external;
    function sync() external;

    function initialize(address, address) external;
}

// pragma solidity >=0.6.2;

interface IUniswapV2Router01 {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint amountADesired,
        uint amountBDesired,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB, uint liquidity);
    function addLiquidityETH(
        address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);
    function removeLiquidity(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETH(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountToken, uint amountETH);
    function removeLiquidityWithPermit(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETHWithPermit(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountToken, uint amountETH);
    function swapExactTokensForTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapTokensForExactTokens(
        uint amountOut,
        uint amountInMax,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);
    function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);

    function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
    function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
    function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
    function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
    function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}



// pragma solidity >=0.6.2;

interface IUniswapV2Router02 is IUniswapV2Router01 {
    function removeLiquidityETHSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountETH);
    function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountETH);

    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
    function swapExactETHForTokensSupportingFeeOnTransferTokens(
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external payable;
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
}

// SPDX-License-Identifier: MIT

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

pragma solidity ^0.8.0;

import "./draft-ERC20Permit.sol";
import "../../../utils/math/Math.sol";
import "../../../utils/math/SafeCast.sol";
import "../../../utils/cryptography/ECDSA.sol";

/**
 * @dev Extension of ERC20 to support Compound-like voting and delegation. This version is more generic than Compound's,
 * and supports token supply up to 2^224^ - 1, while COMP is limited to 2^96^ - 1.
 *
 * NOTE: If exact COMP compatibility is required, use the {ERC20VotesComp} variant of this module.
 *
 * This extension keeps a history (checkpoints) of each account's vote power. Vote power can be delegated either
 * by calling the {delegate} function directly, or by providing a signature to be used with {delegateBySig}. Voting
 * power can be queried through the public accessors {getVotes} and {getPastVotes}.
 *
 * By default, token balance does not account for voting power. This makes transfers cheaper. The downside is that it
 * requires users to delegate to themselves in order to activate checkpoints and have their voting power tracked.
 * Enabling self-delegation can easily be done by overriding the {delegates} function. Keep in mind however that this
 * will significantly increase the base gas cost of transfers.
 *
 * _Available since v4.2._
 */
abstract contract ERC20Votes is ERC20Permit {
    struct Checkpoint {
        uint32 fromBlock;
        uint224 votes;
    }

    bytes32 private constant _DELEGATION_TYPEHASH =
        keccak256("Delegation(address delegatee,uint256 nonce,uint256 expiry)");

    mapping(address => address) private _delegates;
    mapping(address => Checkpoint[]) private _checkpoints;
    Checkpoint[] private _totalSupplyCheckpoints;

    /**
     * @dev Emitted when an account changes their delegate.
     */
    event DelegateChanged(address indexed delegator, address indexed fromDelegate, address indexed toDelegate);

    /**
     * @dev Emitted when a token transfer or delegate change results in changes to an account's voting power.
     */
    event DelegateVotesChanged(address indexed delegate, uint256 previousBalance, uint256 newBalance);

    /**
     * @dev Get the `pos`-th checkpoint for `account`.
     */
    function checkpoints(address account, uint32 pos) public view virtual returns (Checkpoint memory) {
        return _checkpoints[account][pos];
    }

    /**
     * @dev Get number of checkpoints for `account`.
     */
    function numCheckpoints(address account) public view virtual returns (uint32) {
        return SafeCast.toUint32(_checkpoints[account].length);
    }

    /**
     * @dev Get the address `account` is currently delegating to.
     */
    function delegates(address account) public view virtual returns (address) {
        return _delegates[account];
    }

    /**
     * @dev Gets the current votes balance for `account`
     */
    function getVotes(address account) public view returns (uint256) {
        uint256 pos = _checkpoints[account].length;
        return pos == 0 ? 0 : _checkpoints[account][pos - 1].votes;
    }

    /**
     * @dev Retrieve the number of votes for `account` at the end of `blockNumber`.
     *
     * Requirements:
     *
     * - `blockNumber` must have been already mined
     */
    function getPastVotes(address account, uint256 blockNumber) public view returns (uint256) {
        require(blockNumber < block.number, "ERC20Votes: block not yet mined");
        return _checkpointsLookup(_checkpoints[account], blockNumber);
    }

    /**
     * @dev Retrieve the `totalSupply` at the end of `blockNumber`. Note, this value is the sum of all balances.
     * It is but NOT the sum of all the delegated votes!
     *
     * Requirements:
     *
     * - `blockNumber` must have been already mined
     */
    function getPastTotalSupply(uint256 blockNumber) public view returns (uint256) {
        require(blockNumber < block.number, "ERC20Votes: block not yet mined");
        return _checkpointsLookup(_totalSupplyCheckpoints, blockNumber);
    }

    /**
     * @dev Lookup a value in a list of (sorted) checkpoints.
     */
    function _checkpointsLookup(Checkpoint[] storage ckpts, uint256 blockNumber) private view returns (uint256) {
        // We run a binary search to look for the earliest checkpoint taken after `blockNumber`.
        //
        // During the loop, the index of the wanted checkpoint remains in the range [low-1, high).
        // With each iteration, either `low` or `high` is moved towards the middle of the range to maintain the invariant.
        // - If the middle checkpoint is after `blockNumber`, we look in [low, mid)
        // - If the middle checkpoint is before or equal to `blockNumber`, we look in [mid+1, high)
        // Once we reach a single value (when low == high), we've found the right checkpoint at the index high-1, if not
        // out of bounds (in which case we're looking too far in the past and the result is 0).
        // Note that if the latest checkpoint available is exactly for `blockNumber`, we end up with an index that is
        // past the end of the array, so we technically don't find a checkpoint after `blockNumber`, but it works out
        // the same.
        uint256 high = ckpts.length;
        uint256 low = 0;
        while (low < high) {
            uint256 mid = Math.average(low, high);
            if (ckpts[mid].fromBlock > blockNumber) {
                high = mid;
            } else {
                low = mid + 1;
            }
        }

        return high == 0 ? 0 : ckpts[high - 1].votes;
    }

    /**
     * @dev Delegate votes from the sender to `delegatee`.
     */
    function delegate(address delegatee) public virtual {
        return _delegate(_msgSender(), delegatee);
    }

    /**
     * @dev Delegates votes from signer to `delegatee`
     */
    function delegateBySig(
        address delegatee,
        uint256 nonce,
        uint256 expiry,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) public virtual {
        require(block.timestamp <= expiry, "ERC20Votes: signature expired");
        address signer = ECDSA.recover(
            _hashTypedDataV4(keccak256(abi.encode(_DELEGATION_TYPEHASH, delegatee, nonce, expiry))),
            v,
            r,
            s
        );
        require(nonce == _useNonce(signer), "ERC20Votes: invalid nonce");
        return _delegate(signer, delegatee);
    }

    /**
     * @dev Maximum token supply. Defaults to `type(uint224).max` (2^224^ - 1).
     */
    function _maxSupply() internal view virtual returns (uint224) {
        return type(uint224).max;
    }

    /**
     * @dev Snapshots the totalSupply after it has been increased.
     */
    function _mint(address account, uint256 amount) internal virtual override {
        super._mint(account, amount);
        require(totalSupply() <= _maxSupply(), "ERC20Votes: total supply risks overflowing votes");

        _writeCheckpoint(_totalSupplyCheckpoints, _add, amount);
    }

    /**
     * @dev Snapshots the totalSupply after it has been decreased.
     */
    function _burn(address account, uint256 amount) internal virtual override {
        super._burn(account, amount);

        _writeCheckpoint(_totalSupplyCheckpoints, _subtract, amount);
    }

    /**
     * @dev Move voting power when tokens are transferred.
     *
     * Emits a {DelegateVotesChanged} event.
     */
    function _afterTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual override {
        super._afterTokenTransfer(from, to, amount);

        _moveVotingPower(delegates(from), delegates(to), amount);
    }

    /**
     * @dev Change delegation for `delegator` to `delegatee`.
     *
     * Emits events {DelegateChanged} and {DelegateVotesChanged}.
     */
    function _delegate(address delegator, address delegatee) internal virtual {
        address currentDelegate = delegates(delegator);
        uint256 delegatorBalance = balanceOf(delegator);
        _delegates[delegator] = delegatee;

        emit DelegateChanged(delegator, currentDelegate, delegatee);

        _moveVotingPower(currentDelegate, delegatee, delegatorBalance);
    }

    function _moveVotingPower(
        address src,
        address dst,
        uint256 amount
    ) private {
        if (src != dst && amount > 0) {
            if (src != address(0)) {
                (uint256 oldWeight, uint256 newWeight) = _writeCheckpoint(_checkpoints[src], _subtract, amount);
                emit DelegateVotesChanged(src, oldWeight, newWeight);
            }

            if (dst != address(0)) {
                (uint256 oldWeight, uint256 newWeight) = _writeCheckpoint(_checkpoints[dst], _add, amount);
                emit DelegateVotesChanged(dst, oldWeight, newWeight);
            }
        }
    }

    function _writeCheckpoint(
        Checkpoint[] storage ckpts,
        function(uint256, uint256) view returns (uint256) op,
        uint256 delta
    ) private returns (uint256 oldWeight, uint256 newWeight) {
        uint256 pos = ckpts.length;
        oldWeight = pos == 0 ? 0 : ckpts[pos - 1].votes;
        newWeight = op(oldWeight, delta);

        if (pos > 0 && ckpts[pos - 1].fromBlock == block.number) {
            ckpts[pos - 1].votes = SafeCast.toUint224(newWeight);
        } else {
            ckpts.push(Checkpoint({fromBlock: SafeCast.toUint32(block.number), votes: SafeCast.toUint224(newWeight)}));
        }
    }

    function _add(uint256 a, uint256 b) private pure returns (uint256) {
        return a + b;
    }

    function _subtract(uint256 a, uint256 b) private pure returns (uint256) {
        return a - b;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./draft-IERC20Permit.sol";
import "../ERC20.sol";
import "../../../utils/cryptography/draft-EIP712.sol";
import "../../../utils/cryptography/ECDSA.sol";
import "../../../utils/Counters.sol";

/**
 * @dev Implementation of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on `{IERC20-approve}`, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 *
 * _Available since v3.4._
 */
abstract contract ERC20Permit is ERC20, IERC20Permit, EIP712 {
    using Counters for Counters.Counter;

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

    // solhint-disable-next-line var-name-mixedcase
    bytes32 private immutable _PERMIT_TYPEHASH =
        keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");

    /**
     * @dev Initializes the {EIP712} domain separator using the `name` parameter, and setting `version` to `"1"`.
     *
     * It's a good idea to use the same `name` that is defined as the ERC20 token name.
     */
    constructor(string memory name) EIP712(name, "1") {}

    /**
     * @dev See {IERC20Permit-permit}.
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) public virtual override {
        require(block.timestamp <= deadline, "ERC20Permit: expired deadline");

        bytes32 structHash = keccak256(abi.encode(_PERMIT_TYPEHASH, owner, spender, value, _useNonce(owner), deadline));

        bytes32 hash = _hashTypedDataV4(structHash);

        address signer = ECDSA.recover(hash, v, r, s);
        require(signer == owner, "ERC20Permit: invalid signature");

        _approve(owner, spender, value);
    }

    /**
     * @dev See {IERC20Permit-nonces}.
     */
    function nonces(address owner) public view virtual override returns (uint256) {
        return _nonces[owner].current();
    }

    /**
     * @dev See {IERC20Permit-DOMAIN_SEPARATOR}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view override returns (bytes32) {
        return _domainSeparatorV4();
    }

    /**
     * @dev "Consume a nonce": return the current value and increment.
     *
     * _Available since v4.1._
     */
    function _useNonce(address owner) internal virtual returns (uint256 current) {
        Counters.Counter storage nonce = _nonces[owner];
        current = nonce.current();
        nonce.increment();
    }
}

// SPDX-License-Identifier: MIT

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 granted `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}.
     * ====
     */
    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);
    }

    function _grantRole(bytes32 role, address account) private {
        if (!hasRole(role, account)) {
            _roles[role].members[account] = true;
            emit RoleGranted(role, account, _msgSender());
        }
    }

    function _revokeRole(bytes32 role, address account) private {
        if (hasRole(role, account)) {
            _roles[role].members[account] = false;
            emit RoleRevoked(role, account, _msgSender());
        }
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../ERC20.sol";
import "../../../utils/Arrays.sol";
import "../../../utils/Counters.sol";

/**
 * @dev This contract extends an ERC20 token with a snapshot mechanism. When a snapshot is created, the balances and
 * total supply at the time are recorded for later access.
 *
 * This can be used to safely create mechanisms based on token balances such as trustless dividends or weighted voting.
 * In naive implementations it's possible to perform a "double spend" attack by reusing the same balance from different
 * accounts. By using snapshots to calculate dividends or voting power, those attacks no longer apply. It can also be
 * used to create an efficient ERC20 forking mechanism.
 *
 * Snapshots are created by the internal {_snapshot} function, which will emit the {Snapshot} event and return a
 * snapshot id. To get the total supply at the time of a snapshot, call the function {totalSupplyAt} with the snapshot
 * id. To get the balance of an account at the time of a snapshot, call the {balanceOfAt} function with the snapshot id
 * and the account address.
 *
 * NOTE: Snapshot policy can be customized by overriding the {_getCurrentSnapshotId} method. For example, having it
 * return `block.number` will trigger the creation of snapshot at the begining of each new block. When overridding this
 * function, be careful about the monotonicity of its result. Non-monotonic snapshot ids will break the contract.
 *
 * Implementing snapshots for every block using this method will incur significant gas costs. For a gas-efficient
 * alternative consider {ERC20Votes}.
 *
 * ==== Gas Costs
 *
 * Snapshots are efficient. Snapshot creation is _O(1)_. Retrieval of balances or total supply from a snapshot is _O(log
 * n)_ in the number of snapshots that have been created, although _n_ for a specific account will generally be much
 * smaller since identical balances in subsequent snapshots are stored as a single entry.
 *
 * There is a constant overhead for normal ERC20 transfers due to the additional snapshot bookkeeping. This overhead is
 * only significant for the first transfer that immediately follows a snapshot for a particular account. Subsequent
 * transfers will have normal cost until the next snapshot, and so on.
 */

abstract contract ERC20Snapshot is ERC20 {
    // Inspired by Jordi Baylina's MiniMeToken to record historical balances:
    // https://github.com/Giveth/minimd/blob/ea04d950eea153a04c51fa510b068b9dded390cb/contracts/MiniMeToken.sol

    using Arrays for uint256[];
    using Counters for Counters.Counter;

    // Snapshotted values have arrays of ids and the value corresponding to that id. These could be an array of a
    // Snapshot struct, but that would impede usage of functions that work on an array.
    struct Snapshots {
        uint256[] ids;
        uint256[] values;
    }

    mapping(address => Snapshots) private _accountBalanceSnapshots;
    Snapshots private _totalSupplySnapshots;

    // Snapshot ids increase monotonically, with the first value being 1. An id of 0 is invalid.
    Counters.Counter private _currentSnapshotId;

    /**
     * @dev Emitted by {_snapshot} when a snapshot identified by `id` is created.
     */
    event Snapshot(uint256 id);

    /**
     * @dev Creates a new snapshot and returns its snapshot id.
     *
     * Emits a {Snapshot} event that contains the same id.
     *
     * {_snapshot} is `internal` and you have to decide how to expose it externally. Its usage may be restricted to a
     * set of accounts, for example using {AccessControl}, or it may be open to the public.
     *
     * [WARNING]
     * ====
     * While an open way of calling {_snapshot} is required for certain trust minimization mechanisms such as forking,
     * you must consider that it can potentially be used by attackers in two ways.
     *
     * First, it can be used to increase the cost of retrieval of values from snapshots, although it will grow
     * logarithmically thus rendering this attack ineffective in the long term. Second, it can be used to target
     * specific accounts and increase the cost of ERC20 transfers for them, in the ways specified in the Gas Costs
     * section above.
     *
     * We haven't measured the actual numbers; if this is something you're interested in please reach out to us.
     * ====
     */
    function _snapshot() internal virtual returns (uint256) {
        _currentSnapshotId.increment();

        uint256 currentId = _getCurrentSnapshotId();
        emit Snapshot(currentId);
        return currentId;
    }

    /**
     * @dev Get the current snapshotId
     */
    function _getCurrentSnapshotId() internal view virtual returns (uint256) {
        return _currentSnapshotId.current();
    }

    /**
     * @dev Retrieves the balance of `account` at the time `snapshotId` was created.
     */
    function balanceOfAt(address account, uint256 snapshotId) public view virtual returns (uint256) {
        (bool snapshotted, uint256 value) = _valueAt(snapshotId, _accountBalanceSnapshots[account]);

        return snapshotted ? value : balanceOf(account);
    }

    /**
     * @dev Retrieves the total supply at the time `snapshotId` was created.
     */
    function totalSupplyAt(uint256 snapshotId) public view virtual returns (uint256) {
        (bool snapshotted, uint256 value) = _valueAt(snapshotId, _totalSupplySnapshots);

        return snapshotted ? value : totalSupply();
    }

    // Update balance and/or total supply snapshots before the values are modified. This is implemented
    // in the _beforeTokenTransfer hook, which is executed for _mint, _burn, and _transfer operations.
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual override {
        super._beforeTokenTransfer(from, to, amount);

        if (from == address(0)) {
            // mint
            _updateAccountSnapshot(to);
            _updateTotalSupplySnapshot();
        } else if (to == address(0)) {
            // burn
            _updateAccountSnapshot(from);
            _updateTotalSupplySnapshot();
        } else {
            // transfer
            _updateAccountSnapshot(from);
            _updateAccountSnapshot(to);
        }
    }

    function _valueAt(uint256 snapshotId, Snapshots storage snapshots) private view returns (bool, uint256) {
        require(snapshotId > 0, "ERC20Snapshot: id is 0");
        require(snapshotId <= _getCurrentSnapshotId(), "ERC20Snapshot: nonexistent id");

        // When a valid snapshot is queried, there are three possibilities:
        //  a) The queried value was not modified after the snapshot was taken. Therefore, a snapshot entry was never
        //  created for this id, and all stored snapshot ids are smaller than the requested one. The value that corresponds
        //  to this id is the current one.
        //  b) The queried value was modified after the snapshot was taken. Therefore, there will be an entry with the
        //  requested id, and its value is the one to return.
        //  c) More snapshots were created after the requested one, and the queried value was later modified. There will be
        //  no entry for the requested id: the value that corresponds to it is that of the smallest snapshot id that is
        //  larger than the requested one.
        //
        // In summary, we need to find an element in an array, returning the index of the smallest value that is larger if
        // it is not found, unless said value doesn't exist (e.g. when all values are smaller). Arrays.findUpperBound does
        // exactly this.

        uint256 index = snapshots.ids.findUpperBound(snapshotId);

        if (index == snapshots.ids.length) {
            return (false, 0);
        } else {
            return (true, snapshots.values[index]);
        }
    }

    function _updateAccountSnapshot(address account) private {
        _updateSnapshot(_accountBalanceSnapshots[account], balanceOf(account));
    }

    function _updateTotalSupplySnapshot() private {
        _updateSnapshot(_totalSupplySnapshots, totalSupply());
    }

    function _updateSnapshot(Snapshots storage snapshots, uint256 currentValue) private {
        uint256 currentId = _getCurrentSnapshotId();
        if (_lastSnapshotId(snapshots.ids) < currentId) {
            snapshots.ids.push(currentId);
            snapshots.values.push(currentValue);
        }
    }

    function _lastSnapshotId(uint256[] storage ids) private view returns (uint256) {
        if (ids.length == 0) {
            return 0;
        } else {
            return ids[ids.length - 1];
        }
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../ERC20.sol";
import "../../../utils/Context.sol";

/**
 * @dev Extension of {ERC20} that allows token holders to destroy both their own
 * tokens and those that they have an allowance for, in a way that can be
 * recognized off-chain (via event analysis).
 */
abstract contract ERC20Burnable is Context, ERC20 {
    /**
     * @dev Destroys `amount` tokens from the caller.
     *
     * See {ERC20-_burn}.
     */
    function burn(uint256 amount) public virtual {
        _burn(_msgSender(), amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, deducting from the caller's
     * allowance.
     *
     * See {ERC20-_burn} and {ERC20-allowance}.
     *
     * Requirements:
     *
     * - the caller must have allowance for ``accounts``'s tokens of at least
     * `amount`.
     */
    function burnFrom(address account, uint256 amount) public virtual {
        uint256 currentAllowance = allowance(account, _msgSender());
        require(currentAllowance >= amount, "ERC20: burn amount exceeds allowance");
        unchecked {
            _approve(account, _msgSender(), currentAllowance - amount);
        }
        _burn(account, amount);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC20
 * applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20 is Context, IERC20, IERC20Metadata {
    mapping(address => uint256) private _balances;

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

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

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

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

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

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

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

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

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

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

    /**
     * @dev See {IERC20-approve}.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * Requirements:
     *
     * - `sender` and `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     * - the caller must have allowance for ``sender``'s tokens of at least
     * `amount`.
     */
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) public virtual override returns (bool) {
        _transfer(sender, recipient, amount);

        uint256 currentAllowance = _allowances[sender][_msgSender()];
        require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
        unchecked {
            _approve(sender, _msgSender(), currentAllowance - amount);
        }

        return true;
    }

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

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

        return true;
    }

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

        uint256 senderBalance = _balances[sender];
        require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[sender] = senderBalance - amount;
        }
        _balances[recipient] += amount;

        emit Transfer(sender, recipient, amount);

        _afterTokenTransfer(sender, recipient, amount);
    }

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

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

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

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

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT

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

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

pragma solidity ^0.8.0;

/**
 * @title Counters
 * @author Matt Condon (@shrugs)
 * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number
 * of elements in a mapping, issuing ERC721 ids, or counting request ids.
 *
 * Include with `using Counters for Counters.Counter;`
 */
library Counters {
    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 {
        unchecked {
            counter._value += 1;
        }
    }

    function decrement(Counter storage counter) internal {
        uint256 value = counter._value;
        require(value > 0, "Counter: decrement overflow");
        unchecked {
            counter._value = value - 1;
        }
    }

    function reset(Counter storage counter) internal {
        counter._value = 0;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS,
        InvalidSignatureV
    }

    function _throwError(RecoverError error) private pure {
        if (error == RecoverError.NoError) {
            return; // no error: do nothing
        } else if (error == RecoverError.InvalidSignature) {
            revert("ECDSA: invalid signature");
        } else if (error == RecoverError.InvalidSignatureLength) {
            revert("ECDSA: invalid signature length");
        } else if (error == RecoverError.InvalidSignatureS) {
            revert("ECDSA: invalid signature 's' value");
        } else if (error == RecoverError.InvalidSignatureV) {
            revert("ECDSA: invalid signature 'v' value");
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature` or error string. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     *
     * Documentation for signature generation:
     * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
     * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
        // Check the signature length
        // - case 65: r,s,v signature (standard)
        // - case 64: r,vs signature (cf https://eips.ethereum.org/EIPS/eip-2098) _Available since v4.1._
        if (signature.length == 65) {
            bytes32 r;
            bytes32 s;
            uint8 v;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            assembly {
                r := mload(add(signature, 0x20))
                s := mload(add(signature, 0x40))
                v := byte(0, mload(add(signature, 0x60)))
            }
            return tryRecover(hash, v, r, s);
        } else if (signature.length == 64) {
            bytes32 r;
            bytes32 vs;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            assembly {
                r := mload(add(signature, 0x20))
                vs := mload(add(signature, 0x40))
            }
            return tryRecover(hash, r, vs);
        } else {
            return (address(0), RecoverError.InvalidSignatureLength);
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, signature);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
     *
     * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
     *
     * _Available since v4.3._
     */
    function tryRecover(
        bytes32 hash,
        bytes32 r,
        bytes32 vs
    ) internal pure returns (address, RecoverError) {
        bytes32 s;
        uint8 v;
        assembly {
            s := and(vs, 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff)
            v := add(shr(255, vs), 27)
        }
        return tryRecover(hash, v, r, s);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
     *
     * _Available since v4.2._
     */
    function recover(
        bytes32 hash,
        bytes32 r,
        bytes32 vs
    ) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, r, vs);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `v`,
     * `r` and `s` signature fields separately.
     *
     * _Available since v4.3._
     */
    function tryRecover(
        bytes32 hash,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal pure returns (address, RecoverError) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
            return (address(0), RecoverError.InvalidSignatureS);
        }
        if (v != 27 && v != 28) {
            return (address(0), RecoverError.InvalidSignatureV);
        }

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        if (signer == address(0)) {
            return (address(0), RecoverError.InvalidSignature);
        }

        return (signer, RecoverError.NoError);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(
        bytes32 hash,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, v, r, s);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from a `hash`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
    }

    /**
     * @dev Returns an Ethereum Signed Typed Data, created from a
     * `domainSeparator` and a `structHash`. This produces hash corresponding
     * to the one signed with the
     * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]
     * JSON-RPC method as part of EIP-712.
     *
     * See {recover}.
     */
    function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash));
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./ECDSA.sol";

/**
 * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.
 *
 * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,
 * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding
 * they need in their contracts using a combination of `abi.encode` and `keccak256`.
 *
 * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding
 * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA
 * ({_hashTypedDataV4}).
 *
 * The implementation of the domain separator was designed to be as efficient as possible while still properly updating
 * the chain id to protect against replay attacks on an eventual fork of the chain.
 *
 * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method
 * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].
 *
 * _Available since v3.4._
 */
abstract contract EIP712 {
    /* solhint-disable var-name-mixedcase */
    // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to
    // invalidate the cached domain separator if the chain id changes.
    bytes32 private immutable _CACHED_DOMAIN_SEPARATOR;
    uint256 private immutable _CACHED_CHAIN_ID;

    bytes32 private immutable _HASHED_NAME;
    bytes32 private immutable _HASHED_VERSION;
    bytes32 private immutable _TYPE_HASH;

    /* solhint-enable var-name-mixedcase */

    /**
     * @dev Initializes the domain separator and parameter caches.
     *
     * The meaning of `name` and `version` is specified in
     * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:
     *
     * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.
     * - `version`: the current major version of the signing domain.
     *
     * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart
     * contract upgrade].
     */
    constructor(string memory name, string memory version) {
        bytes32 hashedName = keccak256(bytes(name));
        bytes32 hashedVersion = keccak256(bytes(version));
        bytes32 typeHash = keccak256(
            "EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"
        );
        _HASHED_NAME = hashedName;
        _HASHED_VERSION = hashedVersion;
        _CACHED_CHAIN_ID = block.chainid;
        _CACHED_DOMAIN_SEPARATOR = _buildDomainSeparator(typeHash, hashedName, hashedVersion);
        _TYPE_HASH = typeHash;
    }

    /**
     * @dev Returns the domain separator for the current chain.
     */
    function _domainSeparatorV4() internal view returns (bytes32) {
        if (block.chainid == _CACHED_CHAIN_ID) {
            return _CACHED_DOMAIN_SEPARATOR;
        } else {
            return _buildDomainSeparator(_TYPE_HASH, _HASHED_NAME, _HASHED_VERSION);
        }
    }

    function _buildDomainSeparator(
        bytes32 typeHash,
        bytes32 nameHash,
        bytes32 versionHash
    ) private view returns (bytes32) {
        return keccak256(abi.encode(typeHash, nameHash, versionHash, block.chainid, address(this)));
    }

    /**
     * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this
     * function returns the hash of the fully encoded EIP712 message for this domain.
     *
     * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:
     *
     * ```solidity
     * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(
     *     keccak256("Mail(address to,string contents)"),
     *     mailTo,
     *     keccak256(bytes(mailContents))
     * )));
     * address signer = ECDSA.recover(digest, signature);
     * ```
     */
    function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {
        return ECDSA.toTypedDataHash(_domainSeparatorV4(), structHash);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

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

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Wrappers over Solidity's uintXX/intXX casting operators with added overflow
 * checks.
 *
 * Downcasting from uint256/int256 in Solidity does not revert on overflow. This can
 * easily result in undesired exploitation or bugs, since developers usually
 * assume that overflows raise errors. `SafeCast` restores this intuition by
 * reverting the transaction when such 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.
 *
 * Can be combined with {SafeMath} and {SignedSafeMath} to extend it to smaller types, by performing
 * all math on `uint256` and `int256` and then downcasting.
 */
library SafeCast {
    /**
     * @dev Returns the downcasted uint224 from uint256, reverting on
     * overflow (when the input is greater than largest uint224).
     *
     * Counterpart to Solidity's `uint224` operator.
     *
     * Requirements:
     *
     * - input must fit into 224 bits
     */
    function toUint224(uint256 value) internal pure returns (uint224) {
        require(value <= type(uint224).max, "SafeCast: value doesn't fit in 224 bits");
        return uint224(value);
    }

    /**
     * @dev Returns the downcasted uint128 from uint256, reverting on
     * overflow (when the input is greater than largest uint128).
     *
     * Counterpart to Solidity's `uint128` operator.
     *
     * Requirements:
     *
     * - input must fit into 128 bits
     */
    function toUint128(uint256 value) internal pure returns (uint128) {
        require(value <= type(uint128).max, "SafeCast: value doesn't fit in 128 bits");
        return uint128(value);
    }

    /**
     * @dev Returns the downcasted uint96 from uint256, reverting on
     * overflow (when the input is greater than largest uint96).
     *
     * Counterpart to Solidity's `uint96` operator.
     *
     * Requirements:
     *
     * - input must fit into 96 bits
     */
    function toUint96(uint256 value) internal pure returns (uint96) {
        require(value <= type(uint96).max, "SafeCast: value doesn't fit in 96 bits");
        return uint96(value);
    }

    /**
     * @dev Returns the downcasted uint64 from uint256, reverting on
     * overflow (when the input is greater than largest uint64).
     *
     * Counterpart to Solidity's `uint64` operator.
     *
     * Requirements:
     *
     * - input must fit into 64 bits
     */
    function toUint64(uint256 value) internal pure returns (uint64) {
        require(value <= type(uint64).max, "SafeCast: value doesn't fit in 64 bits");
        return uint64(value);
    }

    /**
     * @dev Returns the downcasted uint32 from uint256, reverting on
     * overflow (when the input is greater than largest uint32).
     *
     * Counterpart to Solidity's `uint32` operator.
     *
     * Requirements:
     *
     * - input must fit into 32 bits
     */
    function toUint32(uint256 value) internal pure returns (uint32) {
        require(value <= type(uint32).max, "SafeCast: value doesn't fit in 32 bits");
        return uint32(value);
    }

    /**
     * @dev Returns the downcasted uint16 from uint256, reverting on
     * overflow (when the input is greater than largest uint16).
     *
     * Counterpart to Solidity's `uint16` operator.
     *
     * Requirements:
     *
     * - input must fit into 16 bits
     */
    function toUint16(uint256 value) internal pure returns (uint16) {
        require(value <= type(uint16).max, "SafeCast: value doesn't fit in 16 bits");
        return uint16(value);
    }

    /**
     * @dev Returns the downcasted uint8 from uint256, reverting on
     * overflow (when the input is greater than largest uint8).
     *
     * Counterpart to Solidity's `uint8` operator.
     *
     * Requirements:
     *
     * - input must fit into 8 bits.
     */
    function toUint8(uint256 value) internal pure returns (uint8) {
        require(value <= type(uint8).max, "SafeCast: value doesn't fit in 8 bits");
        return uint8(value);
    }

    /**
     * @dev Converts a signed int256 into an unsigned uint256.
     *
     * Requirements:
     *
     * - input must be greater than or equal to 0.
     */
    function toUint256(int256 value) internal pure returns (uint256) {
        require(value >= 0, "SafeCast: value must be positive");
        return uint256(value);
    }

    /**
     * @dev Returns the downcasted int128 from int256, reverting on
     * overflow (when the input is less than smallest int128 or
     * greater than largest int128).
     *
     * Counterpart to Solidity's `int128` operator.
     *
     * Requirements:
     *
     * - input must fit into 128 bits
     *
     * _Available since v3.1._
     */
    function toInt128(int256 value) internal pure returns (int128) {
        require(value >= type(int128).min && value <= type(int128).max, "SafeCast: value doesn't fit in 128 bits");
        return int128(value);
    }

    /**
     * @dev Returns the downcasted int64 from int256, reverting on
     * overflow (when the input is less than smallest int64 or
     * greater than largest int64).
     *
     * Counterpart to Solidity's `int64` operator.
     *
     * Requirements:
     *
     * - input must fit into 64 bits
     *
     * _Available since v3.1._
     */
    function toInt64(int256 value) internal pure returns (int64) {
        require(value >= type(int64).min && value <= type(int64).max, "SafeCast: value doesn't fit in 64 bits");
        return int64(value);
    }

    /**
     * @dev Returns the downcasted int32 from int256, reverting on
     * overflow (when the input is less than smallest int32 or
     * greater than largest int32).
     *
     * Counterpart to Solidity's `int32` operator.
     *
     * Requirements:
     *
     * - input must fit into 32 bits
     *
     * _Available since v3.1._
     */
    function toInt32(int256 value) internal pure returns (int32) {
        require(value >= type(int32).min && value <= type(int32).max, "SafeCast: value doesn't fit in 32 bits");
        return int32(value);
    }

    /**
     * @dev Returns the downcasted int16 from int256, reverting on
     * overflow (when the input is less than smallest int16 or
     * greater than largest int16).
     *
     * Counterpart to Solidity's `int16` operator.
     *
     * Requirements:
     *
     * - input must fit into 16 bits
     *
     * _Available since v3.1._
     */
    function toInt16(int256 value) internal pure returns (int16) {
        require(value >= type(int16).min && value <= type(int16).max, "SafeCast: value doesn't fit in 16 bits");
        return int16(value);
    }

    /**
     * @dev Returns the downcasted int8 from int256, reverting on
     * overflow (when the input is less than smallest int8 or
     * greater than largest int8).
     *
     * Counterpart to Solidity's `int8` operator.
     *
     * Requirements:
     *
     * - input must fit into 8 bits.
     *
     * _Available since v3.1._
     */
    function toInt8(int256 value) internal pure returns (int8) {
        require(value >= type(int8).min && value <= type(int8).max, "SafeCast: value doesn't fit in 8 bits");
        return int8(value);
    }

    /**
     * @dev Converts an unsigned uint256 into a signed int256.
     *
     * Requirements:
     *
     * - input must be less than or equal to maxInt256.
     */
    function toInt256(uint256 value) internal pure returns (int256) {
        // Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive
        require(value <= uint256(type(int256).max), "SafeCast: value doesn't fit in an int256");
        return int256(value);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a >= b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @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.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds up instead
     * of rounding down.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a / b + (a % b == 0 ? 0 : 1);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./math/Math.sol";

/**
 * @dev Collection of functions related to array types.
 */
library Arrays {
    /**
     * @dev Searches a sorted `array` and returns the first index that contains
     * a value greater or equal to `element`. If no such index exists (i.e. all
     * values in the array are strictly less than `element`), the array length is
     * returned. Time complexity O(log n).
     *
     * `array` is expected to be sorted in ascending order, and to contain no
     * repeated elements.
     */
    function findUpperBound(uint256[] storage array, uint256 element) internal view returns (uint256) {
        if (array.length == 0) {
            return 0;
        }

        uint256 low = 0;
        uint256 high = array.length;

        while (low < high) {
            uint256 mid = Math.average(low, high);

            // Note that mid will always be strictly less than high (i.e. it will be a valid array index)
            // because Math.average rounds down (it does integer division with truncation).
            if (array[mid] > element) {
                high = mid;
            } else {
                low = mid + 1;
            }
        }

        // At this point `low` is the exclusive upper bound. We will return the inclusive upper bound.
        if (low > 0 && array[low - 1] == element) {
            return low - 1;
        } else {
            return low;
        }
    }
}

// SPDX-License-Identifier: MIT

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

pragma solidity ^0.8.0;

import "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

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

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

// SPDX-License-Identifier: MIT

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

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

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

pragma solidity ^0.8.0;

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

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"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":"address","name":"delegator","type":"address"},{"indexed":true,"internalType":"address","name":"fromDelegate","type":"address"},{"indexed":true,"internalType":"address","name":"toDelegate","type":"address"}],"name":"DelegateChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"delegate","type":"address"},{"indexed":false,"internalType":"uint256","name":"previousBalance","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"newBalance","type":"uint256"}],"name":"DelegateVotesChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"previousAdminRole","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"newAdminRole","type":"bytes32"}],"name":"RoleAdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleGranted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleRevoked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"pair","type":"address"},{"indexed":true,"internalType":"address","name":"router","type":"address"}],"name":"SetPair","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"id","type":"uint256"}],"name":"Snapshot","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"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"bool","name":"isExcluded","type":"bool"}],"name":"WhitelistAddress","type":"event"},{"inputs":[],"name":"AUX_ADMIN","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DEFAULT_ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"SNAPSHOT_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"pair","type":"address"},{"internalType":"address","name":"router","type":"address"},{"internalType":"address","name":"base","type":"address"}],"name":"_addPair","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"_routerPairs","outputs":[{"internalType":"address","name":"pair","type":"address"},{"internalType":"address","name":"router","type":"address"},{"internalType":"address","name":"base","type":"address"}],"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":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"snapshotId","type":"uint256"}],"name":"balanceOfAt","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"bool","name":"value","type":"bool"}],"name":"blacklistAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"burnFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint32","name":"pos","type":"uint32"}],"name":"checkpoints","outputs":[{"components":[{"internalType":"uint32","name":"fromBlock","type":"uint32"},{"internalType":"uint224","name":"votes","type":"uint224"}],"internalType":"struct ERC20Votes.Checkpoint","name":"","type":"tuple"}],"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":"address","name":"delegatee","type":"address"}],"name":"delegate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"delegatee","type":"address"},{"internalType":"uint256","name":"nonce","type":"uint256"},{"internalType":"uint256","name":"expiry","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"delegateBySig","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"delegates","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"fundingEnabled","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"fundingFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"fundingWallet","outputs":[{"internalType":"address payable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"blockNumber","type":"uint256"}],"name":"getPastTotalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"blockNumber","type":"uint256"}],"name":"getPastVotes","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"getVotes","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"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":"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":"account","type":"address"}],"name":"numCheckpoints","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","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":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address payable","name":"recipient","type":"address"}],"name":"rescueEth","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"rescueTokens","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"contract IERC20","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"rescueTokensSafe","outputs":[{"internalType":"bool","name":"","type":"bool"}],"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":[{"internalType":"bool","name":"_setting","type":"bool"}],"name":"setFundingSells","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address payable","name":"_wallet","type":"address"}],"name":"setFundingWallet","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_swapInProgress","type":"bool"}],"name":"setSwapInProgress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenThreshold","type":"uint256"}],"name":"setTokenThreshold","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"snapStamp","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"snapshot","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":"swapInProgress","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tokenThreshold","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"snapshotId","type":"uint256"}],"name":"totalSupplyAt","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"bool","name":"setting","type":"bool"}],"name":"whitelistAddress","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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