Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

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

import "@openzeppelin/[email protected]/token/ERC20/ERC20.sol";
import "@openzeppelin/[email protected]/token/ERC20/extensions/ERC20Burnable.sol";
import "@openzeppelin/[email protected]/token/ERC20/extensions/draft-ERC20Permit.sol";
import "@openzeppelin/[email protected]/token/ERC20/extensions/ERC20Votes.sol";
import "@openzeppelin/[email protected]/token/ERC20/extensions/ERC20FlashMint.sol";

/// @custom:security-contact [email protected]
contract Candle is ERC20, ERC20Burnable, ERC20Permit, ERC20Votes, ERC20FlashMint {
    constructor() ERC20("Candle", "CNDL") ERC20Permit("Candle") {
        _mint(msg.sender, 100000000000 * 10 ** decimals());
    }

    // 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 _mint(address to, uint256 amount)
        internal
        override(ERC20, ERC20Votes)
    {
        super._mint(to, amount);
    }

    function _burn(address account, uint256 amount)
        internal
        override(ERC20, ERC20Votes)
    {
        super._burn(account, amount);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/ERC20FlashMint.sol)

pragma solidity ^0.8.0;

import "../../../interfaces/IERC3156.sol";
import "../ERC20.sol";

/**
 * @dev Implementation of the ERC3156 Flash loans extension, as defined in
 * https://eips.ethereum.org/EIPS/eip-3156[ERC-3156].
 *
 * Adds the {flashLoan} method, which provides flash loan support at the token
 * level. By default there is no fee, but this can be changed by overriding {flashFee}.
 *
 * _Available since v4.1._
 */
abstract contract ERC20FlashMint is ERC20, IERC3156FlashLender {
    bytes32 private constant _RETURN_VALUE = keccak256("ERC3156FlashBorrower.onFlashLoan");

    /**
     * @dev Returns the maximum amount of tokens available for loan.
     * @param token The address of the token that is requested.
     * @return The amont of token that can be loaned.
     */
    function maxFlashLoan(address token) public view override returns (uint256) {
        return token == address(this) ? type(uint256).max - ERC20.totalSupply() : 0;
    }

    /**
     * @dev Returns the fee applied when doing flash loans. By default this
     * implementation has 0 fees. This function can be overloaded to make
     * the flash loan mechanism deflationary.
     * @param token The token to be flash loaned.
     * @param amount The amount of tokens to be loaned.
     * @return The fees applied to the corresponding flash loan.
     */
    function flashFee(address token, uint256 amount) public view virtual override returns (uint256) {
        require(token == address(this), "ERC20FlashMint: wrong token");
        // silence warning about unused variable without the addition of bytecode.
        amount;
        return 0;
    }

    /**
     * @dev Performs a flash loan. New tokens are minted and sent to the
     * `receiver`, who is required to implement the {IERC3156FlashBorrower}
     * interface. By the end of the flash loan, the receiver is expected to own
     * amount + fee tokens and have them approved back to the token contract itself so
     * they can be burned.
     * @param receiver The receiver of the flash loan. Should implement the
     * {IERC3156FlashBorrower.onFlashLoan} interface.
     * @param token The token to be flash loaned. Only `address(this)` is
     * supported.
     * @param amount The amount of tokens to be loaned.
     * @param data An arbitrary datafield that is passed to the receiver.
     * @return `true` is the flash loan was successful.
     */
    function flashLoan(
        IERC3156FlashBorrower receiver,
        address token,
        uint256 amount,
        bytes calldata data
    ) public virtual override returns (bool) {
        uint256 fee = flashFee(token, amount);
        _mint(address(receiver), amount);
        require(
            receiver.onFlashLoan(msg.sender, token, amount, fee, data) == _RETURN_VALUE,
            "ERC20FlashMint: invalid return value"
        );
        uint256 currentAllowance = allowance(address(receiver), address(this));
        require(currentAllowance >= amount + fee, "ERC20FlashMint: allowance does not allow refund");
        _approve(address(receiver), address(this), currentAllowance - amount - fee);
        _burn(address(receiver), amount + fee);
        return true;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/ERC20Votes.sol)

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 {
        _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");
        _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
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-ERC20Permit.sol)

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
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/ERC20Burnable.sol)

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
// OpenZeppelin Contracts v4.4.1 (token/ERC20/ERC20.sol)

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
// OpenZeppelin Contracts v4.4.1 (utils/Counters.sol)

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
// OpenZeppelin Contracts v4.4.1 (utils/cryptography/ECDSA.sol)

pragma solidity ^0.8.0;

import "../Strings.sol";

/**
 * @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 Message, created from `s`. 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(bytes memory s) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s));
    }

    /**
     * @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
// OpenZeppelin Contracts v4.4.1 (utils/cryptography/draft-EIP712.sol)

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;
    address private immutable _CACHED_THIS;

    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);
        _CACHED_THIS = address(this);
        _TYPE_HASH = typeHash;
    }

    /**
     * @dev Returns the domain separator for the current chain.
     */
    function _domainSeparatorV4() internal view returns (bytes32) {
        if (address(this) == _CACHED_THIS && 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
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)

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
// OpenZeppelin Contracts v4.4.1 (utils/math/SafeCast.sol)

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
// OpenZeppelin Contracts v4.4.1 (utils/math/Math.sol)

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
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC3156.sol)

pragma solidity ^0.8.0;

import "./IERC3156FlashBorrower.sol";
import "./IERC3156FlashLender.sol";

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

pragma solidity ^0.8.0;

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

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

pragma solidity ^0.8.0;

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

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        // Inspired by OraclizeAPI's implementation - MIT licence
        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol

        if (value == 0) {
            return "0";
        }
        uint256 temp = value;
        uint256 digits;
        while (temp != 0) {
            digits++;
            temp /= 10;
        }
        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }
        return string(buffer);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0x00";
        }
        uint256 temp = value;
        uint256 length = 0;
        while (temp != 0) {
            length++;
            temp >>= 8;
        }
        return toHexString(value, length);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _HEX_SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC3156FlashLender.sol)

pragma solidity ^0.8.0;

import "./IERC3156FlashBorrower.sol";

/**
 * @dev Interface of the ERC3156 FlashLender, as defined in
 * https://eips.ethereum.org/EIPS/eip-3156[ERC-3156].
 *
 * _Available since v4.1._
 */
interface IERC3156FlashLender {
    /**
     * @dev The amount of currency available to be lended.
     * @param token The loan currency.
     * @return The amount of `token` that can be borrowed.
     */
    function maxFlashLoan(address token) external view returns (uint256);

    /**
     * @dev The fee to be charged for a given loan.
     * @param token The loan currency.
     * @param amount The amount of tokens lent.
     * @return The amount of `token` to be charged for the loan, on top of the returned principal.
     */
    function flashFee(address token, uint256 amount) external view returns (uint256);

    /**
     * @dev Initiate a flash loan.
     * @param receiver The receiver of the tokens in the loan, and the receiver of the callback.
     * @param token The loan currency.
     * @param amount The amount of tokens lent.
     * @param data Arbitrary data structure, intended to contain user-defined parameters.
     */
    function flashLoan(
        IERC3156FlashBorrower receiver,
        address token,
        uint256 amount,
        bytes calldata data
    ) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC3156FlashBorrower.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC3156 FlashBorrower, as defined in
 * https://eips.ethereum.org/EIPS/eip-3156[ERC-3156].
 *
 * _Available since v4.1._
 */
interface IERC3156FlashBorrower {
    /**
     * @dev Receive a flash loan.
     * @param initiator The initiator of the loan.
     * @param token The loan currency.
     * @param amount The amount of tokens lent.
     * @param fee The additional amount of tokens to repay.
     * @param data Arbitrary data structure, intended to contain user-defined parameters.
     * @return The keccak256 hash of "ERC3156FlashBorrower.onFlashLoan"
     */
    function onFlashLoan(
        address initiator,
        address token,
        uint256 amount,
        uint256 fee,
        bytes calldata data
    ) external returns (bytes32);
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "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":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"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":"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":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"flashFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract IERC3156FlashBorrower","name":"receiver","type":"address"},{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"flashLoan","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","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":"address","name":"account","type":"address"}],"name":"getVotes","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"maxFlashLoan","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"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":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"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"}]

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