// This contract is part of Zellic’s smart contract dataset, which is a collection of publicly available contract code gathered as of March 2023.

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @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);

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

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



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

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



// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/ERC20.sol)





// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.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);
}



/**
 * @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:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address to, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, 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}.
     *
     * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _approve(owner, 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}.
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `amount`.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) public virtual override returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, amount);
        _transfer(from, to, 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) {
        address owner = _msgSender();
        _approve(owner, spender, allowance(owner, 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) {
        address owner = _msgSender();
        uint256 currentAllowance = allowance(owner, spender);
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(owner, 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:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     */
    function _transfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(from, to, amount);

        uint256 fromBalance = _balances[from];
        require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[from] = fromBalance - amount;
        }
        _balances[to] += amount;

        emit Transfer(from, to, amount);

        _afterTokenTransfer(from, to, 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 Updates `owner` s allowance for `spender` based on spent `amount`.
     *
     * Does not update the allowance amount in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Might emit an {Approval} event.
     */
    function _spendAllowance(
        address owner,
        address spender,
        uint256 amount
    ) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            require(currentAllowance >= amount, "ERC20: insufficient allowance");
            unchecked {
                _approve(owner, spender, currentAllowance - 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 {}
}



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

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

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

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

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

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

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

contract BetToken is ERC20, Ownable {
  constructor(string memory _nameAndSymbol) ERC20(_nameAndSymbol, _nameAndSymbol) {}

  function mint(address _to, uint _amount) external onlyOwner {
    _mint(_to, _amount);
  }

  function burn(address _from, uint _amount) external onlyOwner {
    _burn(_from, _amount);
  }
}
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);
}
interface IMintBurn {
  function mint(address, uint) external;
  function burn(address, uint) external;
}


/**
 * @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
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

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

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

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


/**
 * @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");
        }
    }
}


// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)



/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;

        _;

        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }
}







contract BetETH is ReentrancyGuard {
  using SafeERC20 for IERC20;

  // Bet finish unlockTime
  uint public unlockTime;
  address[] public tokenPath;

  string public name;

  // shares token
  address public betYesToken;
  address public betNoToken;

  // deposits
  uint public betYesDeposiedWei;
  uint public betNoDeposiedWei;

  uint public initialPrice;
  uint public finalPrice;

  IUniswapV2Router01 public v2Router;

  // Denomination of initial shares
  uint256 constant internal INITIAL_SHARES = 10 ** 18;

  uint public oneTokenInWei;

  address public constant paymentToken = address(0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE);

  uint public platformFeePercent;

  uint public creatorFeePercent;

  address public platformWallet;

  address public creator;

  uint public constant totalFeePercent = 1000;


  constructor(
    uint _lockTime,
    address[] memory _tokenPath,
    string memory _name,
    address _v2Router,
    uint _initialPrice,
    uint _oneTokenInWei,
    uint _platformFeePercent,
    uint _creatorFeePercent,
    address _platformWallet,
    address _creator
    )
  {
    unlockTime = block.timestamp + _lockTime;
    name = _name;
    tokenPath = _tokenPath;
    betYesToken = address(new BetToken("YES"));
    betNoToken = address(new BetToken("NO"));
    v2Router = IUniswapV2Router01(_v2Router);
    initialPrice = _initialPrice;
    oneTokenInWei = _oneTokenInWei;
    platformFeePercent = _platformFeePercent;
    creatorFeePercent = _creatorFeePercent;
    platformWallet = _platformWallet;
    creator = _creator;
  }

  // bet final > initial
  function betForYes() external payable {
    _bet(betYesToken, msg.value, betYesDeposiedWei);
    betYesDeposiedWei += msg.value;
  }

  // bet initial =< final
  function betForNo() external payable {
    _bet(betNoToken, msg.value, betNoDeposiedWei);
    betNoDeposiedWei += msg.value;
  }

  // user can withdraw bet while not locked
  function withdrawForYes(uint sharesAmount) external {
    require(block.timestamp < unlockTime, "locked");
    uint withdrawed = _withdraw(betYesToken, sharesAmount, betYesDeposiedWei);
    betYesDeposiedWei -= withdrawed;
  }

  function withdrawForNo(uint sharesAmount) external {
    require(block.timestamp < unlockTime, "locked");
    uint withdrawed = _withdraw(betNoToken, sharesAmount, betNoDeposiedWei);
    betNoDeposiedWei -= withdrawed;
  }

  // winner can withdraw bet + rewards
  function getReward() external{
    require(block.timestamp > unlockTime, "early");

    if(finalPrice == 0)
      finalPrice = getPrice();

    address token = finalPrice > initialPrice
    ? betYesToken // bet Yes win final price more than initial
    : betNoToken; // bet No win final price less than initial

    _withdraw(
      token,
      IERC20(token).balanceOf(msg.sender),
      address(this).balance
    );
  }


  // helper for get price
  function getPrice() public view returns(uint){
    uint[] memory res = v2Router.getAmountsOut(oneTokenInWei, tokenPath);
    return res[1];
  }

  /* INTERNAL HELPERS */

  // helper for burn shares and get eth
  function _withdraw(
    address betShareToken,
    uint sharesAmount,
    uint balance
    )
    internal
    nonReentrant
    returns (uint withdrawed)
  {
    require(sharesAmount > 0, "Zerro shares");
    require(IERC20(betShareToken).balanceOf(msg.sender) >= sharesAmount, "not enough shares");
    // compute withdraw amount by shares
    uint totalShares = IERC20(betShareToken).totalSupply();
    uint amount = balance * sharesAmount / totalShares;

    require(address(this).balance >= amount, "exceeds eth");

    uint userAmount = amount;

    // Cut platform percent
    if(platformFeePercent > 0){
      uint platformFee = amount / totalFeePercent * platformFeePercent;
      userAmount = userAmount - platformFee;
      payable(platformWallet).transfer(platformFee);
    }

    // Cut creator fee
    if(creatorFeePercent > 0){
      uint creatorFee = amount / totalFeePercent * creatorFeePercent;
      userAmount = userAmount - creatorFee;
      payable(creator).transfer(creatorFee);
    }

    // transfer eth to user
    payable(msg.sender).transfer(userAmount);

    // burn shares
    IMintBurn(betShareToken).burn(msg.sender, sharesAmount);

    withdrawed = amount;
  }

  // helper for mint shares per bet input
  function _bet(address betShareToken, uint ethAmount, uint totalDeposited) internal {
    require(block.timestamp < unlockTime, "locked");
    require(initialPrice > 0, "require initial price");
    require(ethAmount > 0, "wrong bet fee");

    // mint shares
    IMintBurn(betShareToken).mint(
      msg.sender,
      _calculateSharesToMint(
        ethAmount,
        IERC20(betShareToken).totalSupply(),
        totalDeposited
      )
    );
  }

  // compute how much shares to mint by eth input, total deposied and total shares
  function _calculateSharesToMint(uint ethAmount, uint sharesSupply, uint totalDeposited)
    internal
    view
    returns(uint)
  {
   if (sharesSupply == 0)
     return INITIAL_SHARES;

   return ethAmount * sharesSupply / totalDeposited;
  }

  // Helper function for compute winner balance
  function winnerBalance(address account) external view returns(uint){
    uint _finalPrice = finalPrice > 0
    ? finalPrice
    : getPrice();

    address token = _finalPrice > initialPrice
    ? betYesToken // bet Yes win final price more than initial
    : betNoToken;

    return IERC20(token).balanceOf(account);
  }
}












contract BetERC20 is ReentrancyGuard {
  using SafeERC20 for IERC20;

  // Bet finish unlockTime
  uint public unlockTime;
  address[] public tokenPath;

  string public name;

  // shares token
  address public betYesToken;
  address public betNoToken;

  // deposits
  uint public betYesDeposiedWei;
  uint public betNoDeposiedWei;

  uint public initialPrice;
  uint public finalPrice;

  IUniswapV2Router01 public v2Router;

  // Denomination of initial shares
  uint256 constant internal INITIAL_SHARES = 10 ** 18;

  uint public oneTokenInWei;

  address public paymentToken;

  uint public platformFeePercent;

  uint public creatorFeePercent;

  address public platformWallet;

  address public creator;

  uint public constant totalFeePercent = 1000;


  constructor(
    uint _lockTime,
    address[] memory _tokenPath,
    string memory _name,
    address _v2Router,
    uint _initialPrice,
    uint _oneTokenInWei,
    address _paymentToken,
    uint _platformFeePercent,
    uint _creatorFeePercent,
    address _platformWallet,
    address _creator
    )
  {
    unlockTime = block.timestamp + _lockTime;
    name = _name;
    tokenPath = _tokenPath;
    betYesToken = address(new BetToken("YES"));
    betNoToken = address(new BetToken("NO"));
    v2Router = IUniswapV2Router01(_v2Router);
    initialPrice = _initialPrice;
    oneTokenInWei = _oneTokenInWei;
    paymentToken = _paymentToken;
    platformFeePercent = _platformFeePercent;
    creatorFeePercent = _creatorFeePercent;
    platformWallet = _platformWallet;
    creator = _creator;
  }

  // bet final > initial
  function betForYes(uint tokenAmount) external {
    IERC20(paymentToken).safeTransferFrom(msg.sender, address(this), tokenAmount);
    _bet(betYesToken, tokenAmount, betYesDeposiedWei);
    betYesDeposiedWei += tokenAmount;
  }

  // bet initial =< final
  function betForNo(uint tokenAmount) external {
    IERC20(paymentToken).safeTransferFrom(msg.sender, address(this), tokenAmount);
    _bet(betNoToken, tokenAmount, betNoDeposiedWei);
    betNoDeposiedWei += tokenAmount;
  }

  // user can withdraw bet while not locked
  function withdrawForYes(uint sharesAmount) external {
    require(block.timestamp < unlockTime, "locked");
    uint withdrawed = _withdraw(betYesToken, sharesAmount, betYesDeposiedWei);
    betYesDeposiedWei -= withdrawed;
  }

  function withdrawForNo(uint sharesAmount) external {
    require(block.timestamp < unlockTime, "locked");
    uint withdrawed = _withdraw(betNoToken, sharesAmount, betNoDeposiedWei);
    betNoDeposiedWei -= withdrawed;
  }

  // winner can withdraw bet + rewards
  function getReward() external{
    require(block.timestamp > unlockTime, "early");

    if(finalPrice == 0)
      finalPrice = getPrice();

    address token = finalPrice > initialPrice
    ? betYesToken // bet Yes win final price more than initial
    : betNoToken; // bet No win final price less than initial

    _withdraw(
      token,
      IERC20(token).balanceOf(msg.sender),
      IERC20(paymentToken).balanceOf(address(this))
    );
  }


  // helper for get price
  function getPrice() public view returns(uint){
    uint[] memory res = v2Router.getAmountsOut(oneTokenInWei, tokenPath);
    return res[1];
  }

  /* INTERNAL HELPERS */

  // helper for burn shares and get erc20
  function _withdraw(
    address betShareToken,
    uint sharesAmount,
    uint balance
    )
    internal
    nonReentrant
    returns (uint withdrawed)
  {
    require(sharesAmount > 0, "Zerro shares");
    require(IERC20(betShareToken).balanceOf(msg.sender) >= sharesAmount, "not enough shares");
    // compute withdraw amount by shares
    uint totalShares = IERC20(betShareToken).totalSupply();
    uint amount = balance * sharesAmount / totalShares;

    require(IERC20(paymentToken).balanceOf(address(this)) >= amount, "exceeds erc20");
    require(amount > 0, "zerro withdraw");

    uint userAmount = amount;

    // Cut platform percent
    if(platformFeePercent > 0){
      uint platformFee = amount / totalFeePercent * platformFeePercent;
      userAmount = userAmount - platformFee;
      IERC20(paymentToken).safeTransfer(platformWallet, platformFee);
    }

    // Cut creator fee
    if(creatorFeePercent > 0){
      uint creatorFee = amount / totalFeePercent * creatorFeePercent;
      userAmount = userAmount - creatorFee;
      IERC20(paymentToken).safeTransfer(creator, creatorFee);
    }

    // transfer erc20 to user
    IERC20(paymentToken).safeTransfer(msg.sender, userAmount);

    // burn shares
    IMintBurn(betShareToken).burn(msg.sender, sharesAmount);

    withdrawed = amount;
  }

  // helper for mint shares per bet input
  function _bet(address betShareToken, uint tokenAmount, uint totalDeposited) internal {
    require(block.timestamp < unlockTime, "locked");
    require(initialPrice > 0, "require initial price");
    require(tokenAmount > 0, "wrong bet fee");

    // mint shares
    IMintBurn(betShareToken).mint(
      msg.sender,
      _calculateSharesToMint(
        tokenAmount,
        IERC20(betShareToken).totalSupply(),
        totalDeposited
      )
    );
  }

  // compute how much shares to mint by erc20 input, total deposied and total shares
  function _calculateSharesToMint(uint tokenAmount, uint sharesSupply, uint totalDeposited)
    internal
    view
    returns(uint)
  {
   if (sharesSupply == 0)
     return INITIAL_SHARES;

   return tokenAmount * sharesSupply / totalDeposited;
  }

  // Helper function for compute winner balance
  function winnerBalance(address account) external view returns(uint){
    uint _finalPrice = finalPrice > 0
    ? finalPrice
    : getPrice();

    address token = _finalPrice > initialPrice
    ? betYesToken // bet Yes win final price more than initial
    : betNoToken;

    return IERC20(token).balanceOf(account);
  }
}


contract BetFactory is Ownable {
    address public platformWallet;
    uint public platformFee = 10; // 1% by default
    uint public creatorFee = 10;

    uint public constant totalFeePercent = 1000;

    mapping(address => address) public latestBetPerSender;
    mapping (address => bool) public isETHBased;
    address[] public bets;

    constructor(address _platformWallet){
      platformWallet = _platformWallet;
    }

    // create ETH based payment bet
    function createETHBet(
      uint _lockTime,
      address[] memory _tokenPath,
      string memory _name,
      address _v2Router,
      uint _initialPrice,
      uint _oneTokenInWei
    )
      external
      returns (address)
    {
      address bet = address(
        new BetETH(
          _lockTime,
          _tokenPath,
          _name,
          _v2Router,
          _initialPrice,
          _oneTokenInWei,
          platformFee,
          creatorFee,
          platformWallet,
          msg.sender
         )
      );
      latestBetPerSender[msg.sender] = bet;
      bets.push(bet);

      isETHBased[bet] = true;

      return bet;
    }

    function createERC20Bet(
      uint _lockTime,
      address[] memory _tokenPath,
      string memory _name,
      address _v2Router,
      uint _initialPrice,
      uint _oneTokenInWei,
      address _paymentToken
    )
      external
      returns (address)
    {
      address bet = address(
        new BetERC20(
          _lockTime,
          _tokenPath,
          _name,
          _v2Router,
          _initialPrice,
          _oneTokenInWei,
          _paymentToken,
          platformFee,
          creatorFee,
          platformWallet,
          msg.sender
         )
      );

      latestBetPerSender[msg.sender] = bet;
      bets.push(bet);

      return bet;
    }

    function getAllBetsAddresses() external view returns(address[] memory){
      return bets;
    }

    function getAllBetsLength() external view returns(uint){
      return bets.length;
    }

    // Ownable functions

    function updatePlatformFee(uint _platformFee) external onlyOwner {
      require(platformFee < totalFeePercent / 10, "Fee overflow");
      platformFee = _platformFee;
    }

    function updateCreatorFee(uint _creatorFee) external onlyOwner {
      require(creatorFee < totalFeePercent / 10, "Fee overflow");
      creatorFee = _creatorFee;
    }

    function updatePlatformWallet(address _platformWallet) external onlyOwner {
      platformWallet = _platformWallet;
    }
}