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// SPDX-License-Identifier: BUSL-1.1
// Developed by Moai Labs LLC, owned by EPOCH DAO
pragma solidity 0.8.17;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

contract ITOProtocolV1 is Ownable {
    using SafeERC20 for IERC20Metadata;

    struct LPPosition {
        address maker;
        uint16 lpFeeBp;
        uint32 startDate;
        uint32 endDate;
        IERC20Metadata downsideToken;
        IERC20Metadata upsideToken;
        uint256 upsideTokenBalance;
        uint256 upsidePerDownside;
        uint256 downsideTokenBalance;
    }
    LPPosition[] public lpPositions;
    mapping(uint256 => mapping(address => uint256)) public downsideTokenAmounts;

    // LP Fees
    mapping(address => mapping(address => uint256)) public accumulatedFees;

    // Protocol Fee
    mapping(address => uint256) public protocolFeeBalances;
    uint16 public protocolFeeBp = 100;
    address public protocolFeeRecipientAddress;

    uint16 constant MAX_FEE_BP = 4999;
    uint16 constant BP_MULTIPLIER = 10000;

    uint256 MULTIPLIER = (10**18);

    // Events
    // @dev Minimal data included, data can be fetched from historical blockchain calls
    event Supply(uint256 _positionId);
    event Remove(uint256 _positionId, uint256 _downsideTokenAmount, uint256 _upsideTokenAmount);
    event Take(uint256 _positionId, uint256 _downsideTokenAmount, uint256 _upsideTokenAmount, address _taker);
    event Untake(uint256 _positionId, uint256 _downsideTokenAmount, uint256 _upsideTokenAmount, address _taker);
    event ProtocolFeeClaimed(address _tokenAddress, uint256 _tokenAmount);
    event LPFeeClaimed(address _recipient, address _tokenAddress, uint256 _tokenAmount);
    event ProtocolFeeSet(address _protocolFeeRecipientAddress, uint16 _protocolFeeBp);

    // Errors
    error FeeTooHigh();
    error NotOwner();
    error PositionNotEnded();
    error PositionNotStarted();
    error PositionEnded();
    error InvalidDuration();
    error OutputTooLow();
    error FeeChanged();
    error InvalidFeeConfiguration();

    constructor(address _newOwner) {
        _transferOwnership(_newOwner);
        protocolFeeRecipientAddress = _newOwner;
    }

    /// @notice Allows LPs to create a position
    /// @param _downsideToken Address of the downside token
    /// @param _upsideToken Address of the upside token
    /// @param _upsideTokenAmount The number of upside tokens to provide to this position
    /// @param _exchangeRate The number of upside tokens to pay per downside token
    /// @dev _exchangeRate should be computed like so: ((upsideAmountWei / downsideAmountWei) * 10**18)
    /// @dev Example 1: 1000 USDC as downside, 1 WETH as upside, _exchangeRate = 1000000000000000000000000000
    /// @dev Example 2: 1000 DAI as downside, 1 WETH as upside, _exchangeRate = 1000000000000000
    /// @dev Example 3: 40000 USDC as downside, 1 WBTC as upside, _exchangeRate = 2500000000000000
    /// @param _startDate Unix timestamp of when this position should begin
    /// @param _endDate Unix timestamp of when this position should end
    /// @param _feeBp The maximum liquidity provider fee to charge
    function supply(
        address _downsideToken,
        address _upsideToken,
        uint256 _upsideTokenAmount,
        uint256 _exchangeRate,
        uint32 _startDate,
        uint32 _endDate,
        uint16 _feeBp
    ) external {
        if(_feeBp > MAX_FEE_BP) {
            revert FeeTooHigh();
        }
        if(block.timestamp > _startDate || _startDate > _endDate) {
            revert InvalidDuration();
        }

        lpPositions.push(LPPosition(
            msg.sender,
            _feeBp,
            _startDate,
            _endDate,
            IERC20Metadata(_downsideToken),
            IERC20Metadata(_upsideToken),
            _upsideTokenAmount,
            _exchangeRate,
            0
        ));
        IERC20Metadata(_upsideToken).safeTransferFrom(msg.sender, address(this), _upsideTokenAmount);
        emit Supply(lpPositions.length - 1);
    }

    /// @notice Allows LPs to remove tokens from their position
    /// @dev Note that downside tokens cannot be withdrawn until the end date of the position has been reached
    /// @param _positionId The ID of the position you want to remove from
    /// @param _upsideTokenAmount The number of upside tokens to remove from the position
    /// @param _downsideTokenAmount The number of downside tokens to remove from the position
    function remove(uint256 _positionId, uint256 _upsideTokenAmount, uint256 _downsideTokenAmount) external {
        LPPosition memory d = lpPositions[_positionId];

        if(d.maker != msg.sender) {
            revert NotOwner();
        }

        if(_downsideTokenAmount != 0) {
            if(d.endDate > block.timestamp) {
                revert PositionNotEnded();
            }
        }
        lpPositions[_positionId].downsideTokenBalance -= _downsideTokenAmount;
        lpPositions[_positionId].upsideTokenBalance -= _upsideTokenAmount;

        if(lpPositions[_positionId].downsideTokenBalance == 0 && lpPositions[_positionId].upsideTokenBalance == 0) {
            delete lpPositions[_positionId];
        }

        if(_downsideTokenAmount != 0) {
            d.downsideToken.safeTransfer(msg.sender, _downsideTokenAmount);
        }
        if(_upsideTokenAmount != 0) {
            d.upsideToken.safeTransfer(msg.sender, _upsideTokenAmount);
        }

        emit Remove(_positionId, _downsideTokenAmount, _upsideTokenAmount);
    }

    /// @notice Returns the exact token amounts taken as protocolFee and lpFee given a downside amount
    /// @param _positionId The position ID you wish to calculate fees for
    /// @param _downsideTokenAmount The number of downside tokens you want to calculate fees for
    /// @return protocolFeeTokens The number of downside tokens taken as protocol fee
    /// @return lpFeeTokens The number of downside tokens taken as the LP fee
    function computeFee(uint256 _positionId, uint256 _downsideTokenAmount) public view returns(
        uint256 protocolFeeTokens,
        uint256 lpFeeTokens
    ) {
        uint256 _protocolFeeBp = protocolFeeBp;
        if(_protocolFeeBp != 0) {
            protocolFeeTokens = (_downsideTokenAmount * _protocolFeeBp) / BP_MULTIPLIER;
        }
        uint256 _lpFeeBp = lpPositions[_positionId].lpFeeBp;
        if(_lpFeeBp != 0) {
            lpFeeTokens = (_downsideTokenAmount * _lpFeeBp) / BP_MULTIPLIER;
        }

        return (protocolFeeTokens, lpFeeTokens);
    }

    /// @notice Allows takers to take up the deal (even partially)
    /// @param _positionId The unique ID for the position you wish to interact with
    /// @param _maxDownsideTokenIn The maximum number of downside tokens you wish to provide to this position
    /// @param _minUpsideTokenOut The minimum number of upside tokens to receive before reverting
    /// @param _maxProtocolFeeBp The maximum protocol fee BP you wish to accept before reverting
    /// @dev _maxProtocolFeeBp should typically be set to the current protocol fee
    /// @dev _minUpsideTokenOut can be set to 0 to always partial fill if necessary
    /// @dev None of these params determine exchange rate. Exchange rate is set by supplier of position
    function take(
        uint256 _positionId,
        uint256 _maxDownsideTokenIn,
        uint256 _minUpsideTokenOut,
        uint256 _maxProtocolFeeBp
    ) external {
        LPPosition memory d = lpPositions[_positionId];

        if(d.startDate > block.timestamp) {
            revert PositionNotStarted();
        }
        if(block.timestamp > d.endDate) {
            revert PositionEnded();
        }

        if(protocolFeeBp > _maxProtocolFeeBp) {
            revert FeeChanged();
        }

        (uint256 protocolFee, uint256 lpFee) = computeFee(_positionId, _maxDownsideTokenIn);
        uint256 _downsideTokenBalanceAfterFees = _maxDownsideTokenIn - protocolFee - lpFee;
        uint256 upsideTokenAmount = (_downsideTokenBalanceAfterFees * d.upsidePerDownside) / MULTIPLIER;
        protocolFee = _maxDownsideTokenIn - _downsideTokenBalanceAfterFees - lpFee;

        if(upsideTokenAmount > d.upsideTokenBalance) {
            upsideTokenAmount = d.upsideTokenBalance;

            _downsideTokenBalanceAfterFees = (upsideTokenAmount * MULTIPLIER) / d.upsidePerDownside;
            _maxDownsideTokenIn = (_downsideTokenBalanceAfterFees * BP_MULTIPLIER) / (BP_MULTIPLIER - (d.lpFeeBp + protocolFeeBp));
            (, lpFee) = computeFee(_positionId, _maxDownsideTokenIn);
            protocolFee = _maxDownsideTokenIn - _downsideTokenBalanceAfterFees - lpFee;
        }
        if(_minUpsideTokenOut > upsideTokenAmount) {
            revert OutputTooLow();
        }

        protocolFeeBalances[address(d.downsideToken)] += protocolFee;
        accumulatedFees[d.maker][address(d.downsideToken)] += lpFee;

        lpPositions[_positionId].downsideTokenBalance += _downsideTokenBalanceAfterFees;
        lpPositions[_positionId].upsideTokenBalance -= upsideTokenAmount;

        downsideTokenAmounts[_positionId][msg.sender] += _downsideTokenBalanceAfterFees;

        d.downsideToken.safeTransferFrom(msg.sender, address(this), _maxDownsideTokenIn);
        d.upsideToken.safeTransfer(msg.sender, upsideTokenAmount);

        emit Take(_positionId, _downsideTokenBalanceAfterFees, upsideTokenAmount, msg.sender);
    }

    /// @notice Allows users to return upside tokens (even partially) for a specified number of downsideTokens
    /// @dev Cannot be called once the position has ended
    /// @param _positionId The unique ID for the position you wish to interact with
    /// @param _downsideTokenAmount The number of downside tokens to return
    function untake(uint256 _positionId, uint256 _downsideTokenAmount) external {
        LPPosition memory d = lpPositions[_positionId];

        if(block.timestamp > d.endDate) {
            revert PositionEnded();
        }

        uint256 upsideTokenAmount = (_downsideTokenAmount * d.upsidePerDownside) / MULTIPLIER;

        downsideTokenAmounts[_positionId][msg.sender] -= _downsideTokenAmount;
        lpPositions[_positionId].downsideTokenBalance -= _downsideTokenAmount;
        lpPositions[_positionId].upsideTokenBalance += upsideTokenAmount;

        d.upsideToken.safeTransferFrom(msg.sender, address(this), upsideTokenAmount);
        d.downsideToken.safeTransfer(msg.sender, _downsideTokenAmount);

        emit Untake(_positionId, _downsideTokenAmount, upsideTokenAmount, msg.sender);
    }

    /// @notice Allows owner to set protocol fee recipient address and protocol fee percentage (max)
    /// @dev Only callable by owner
    /// @param _protocolFeeRecipientAddress The address where protocol fees should flow to
    /// @param _protocolFeeBp The protocol fee in basis points (100 = 1%)
    function setProtocolFee(address _protocolFeeRecipientAddress, uint16 _protocolFeeBp) external onlyOwner {
        if(_protocolFeeBp > MAX_FEE_BP) {
            revert FeeTooHigh();
        }

        if(_protocolFeeRecipientAddress == address(0) && _protocolFeeBp != 0) {
            revert InvalidFeeConfiguration();
        }

        protocolFeeRecipientAddress = _protocolFeeRecipientAddress;
        protocolFeeBp = _protocolFeeBp;

        emit ProtocolFeeSet(_protocolFeeRecipientAddress, _protocolFeeBp);
    }

    /// @notice Allows anyone to process protocol fees for a given token address
    /// @notice Fees are sent to the protocolFeeRecipientAddress
    /// @param _tokenAddresses List of the number of tokens to claim
    /// @param _amounts The amount of tokens to process
    function claimProtocolFees(address[] calldata _tokenAddresses, uint256[] calldata _amounts) external {
        for(uint256 i; i < _tokenAddresses.length; ++i) {
            protocolFeeBalances[_tokenAddresses[i]] -= _amounts[i];

            IERC20Metadata(_tokenAddresses[i]).safeTransfer(protocolFeeRecipientAddress, _amounts[i]);

            emit ProtocolFeeClaimed(_tokenAddresses[i], _amounts[i]);
        }
    }

    /// @notice Allows claiming of multiple tokens (partial or full)
    /// @param _tokenAddresses List of the token addresses you wish to claim fees for
    /// @param _tokenAmounts List of the number of tokens to claim
    /// @param _recipient The address where the fees should be sent to
    function claimPositionFees(address[] calldata _tokenAddresses, uint256[] calldata _tokenAmounts, address _recipient) external {
        for(uint256 i; i < _tokenAddresses.length; ++i) {
            accumulatedFees[msg.sender][_tokenAddresses[i]] -= _tokenAmounts[i];

            IERC20Metadata(_tokenAddresses[i]).safeTransfer(_recipient, _tokenAmounts[i]);

            emit LPFeeClaimed(_recipient, _tokenAddresses[i], _tokenAmounts[i]);
        }
    }

    /// @notice Returns the array length of lpPositions
    /// @dev This will include empty positions
    function lpPositionsCount() external view returns(uint256) {
        return lpPositions.length;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

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

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

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

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

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling 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);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (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.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * The default value of {decimals} is 18. To change this, you should override
 * this function so it returns a different value.
 *
 * 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}.
     *
     * 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 default value returned by this function, unless
     * it's 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 `from` to `to`.
     *
     * 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;
            // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
            // decrementing then incrementing.
            _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;
        unchecked {
            // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
            _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;
            // Overflow not possible: amount <= accountBalance <= totalSupply.
            _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 {}
}

// 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 (last updated v4.9.0) (token/ERC20/extensions/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 (last updated v4.9.0) (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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/IERC20Permit.sol";
import "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    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));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    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");
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value);

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
     * Revert on invalid signature.
     */
    function safePermit(
        IERC20Permit token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
    }

    /**
     * @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");
        require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
    }

    /**
     * @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).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        // 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 cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

        (bool success, bytes memory returndata) = address(token).call(data);
        return
            success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @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
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [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://consensys.net/diligence/blog/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/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

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

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

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

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

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

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

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

    /**
     * @dev 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) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

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

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

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

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

pragma solidity ^0.8.0;

/**
 * @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;
    }
}

{
  "metadata": {
    "bytecodeHash": "none"
  },
  "optimizer": {
    "enabled": true,
    "runs": 800
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

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[{"inputs":[{"internalType":"address","name":"_newOwner","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"FeeChanged","type":"error"},{"inputs":[],"name":"FeeTooHigh","type":"error"},{"inputs":[],"name":"InvalidDuration","type":"error"},{"inputs":[],"name":"InvalidFeeConfiguration","type":"error"},{"inputs":[],"name":"NotOwner","type":"error"},{"inputs":[],"name":"OutputTooLow","type":"error"},{"inputs":[],"name":"PositionEnded","type":"error"},{"inputs":[],"name":"PositionNotEnded","type":"error"},{"inputs":[],"name":"PositionNotStarted","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_recipient","type":"address"},{"indexed":false,"internalType":"address","name":"_tokenAddress","type":"address"},{"indexed":false,"internalType":"uint256","name":"_tokenAmount","type":"uint256"}],"name":"LPFeeClaimed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_tokenAddress","type":"address"},{"indexed":false,"internalType":"uint256","name":"_tokenAmount","type":"uint256"}],"name":"ProtocolFeeClaimed","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_protocolFeeRecipientAddress","type":"address"},{"indexed":false,"internalType":"uint16","name":"_protocolFeeBp","type":"uint16"}],"name":"ProtocolFeeSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"_positionId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"_downsideTokenAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"_upsideTokenAmount","type":"uint256"}],"name":"Remove","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"_positionId","type":"uint256"}],"name":"Supply","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"_positionId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"_downsideTokenAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"_upsideTokenAmount","type":"uint256"},{"indexed":false,"internalType":"address","name":"_taker","type":"address"}],"name":"Take","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"_positionId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"_downsideTokenAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"_upsideTokenAmount","type":"uint256"},{"indexed":false,"internalType":"address","name":"_taker","type":"address"}],"name":"Untake","type":"event"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"accumulatedFees","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"_tokenAddresses","type":"address[]"},{"internalType":"uint256[]","name":"_tokenAmounts","type":"uint256[]"},{"internalType":"address","name":"_recipient","type":"address"}],"name":"claimPositionFees","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"_tokenAddresses","type":"address[]"},{"internalType":"uint256[]","name":"_amounts","type":"uint256[]"}],"name":"claimProtocolFees","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_positionId","type":"uint256"},{"internalType":"uint256","name":"_downsideTokenAmount","type":"uint256"}],"name":"computeFee","outputs":[{"internalType":"uint256","name":"protocolFeeTokens","type":"uint256"},{"internalType":"uint256","name":"lpFeeTokens","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"address","name":"","type":"address"}],"name":"downsideTokenAmounts","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"lpPositions","outputs":[{"internalType":"address","name":"maker","type":"address"},{"internalType":"uint16","name":"lpFeeBp","type":"uint16"},{"internalType":"uint32","name":"startDate","type":"uint32"},{"internalType":"uint32","name":"endDate","type":"uint32"},{"internalType":"contract IERC20Metadata","name":"downsideToken","type":"address"},{"internalType":"contract IERC20Metadata","name":"upsideToken","type":"address"},{"internalType":"uint256","name":"upsideTokenBalance","type":"uint256"},{"internalType":"uint256","name":"upsidePerDownside","type":"uint256"},{"internalType":"uint256","name":"downsideTokenBalance","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lpPositionsCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"protocolFeeBalances","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"protocolFeeBp","outputs":[{"internalType":"uint16","name":"","type":"uint16"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"protocolFeeRecipientAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_positionId","type":"uint256"},{"internalType":"uint256","name":"_upsideTokenAmount","type":"uint256"},{"internalType":"uint256","name":"_downsideTokenAmount","type":"uint256"}],"name":"remove","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_protocolFeeRecipientAddress","type":"address"},{"internalType":"uint16","name":"_protocolFeeBp","type":"uint16"}],"name":"setProtocolFee","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_downsideToken","type":"address"},{"internalType":"address","name":"_upsideToken","type":"address"},{"internalType":"uint256","name":"_upsideTokenAmount","type":"uint256"},{"internalType":"uint256","name":"_exchangeRate","type":"uint256"},{"internalType":"uint32","name":"_startDate","type":"uint32"},{"internalType":"uint32","name":"_endDate","type":"uint32"},{"internalType":"uint16","name":"_feeBp","type":"uint16"}],"name":"supply","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_positionId","type":"uint256"},{"internalType":"uint256","name":"_maxDownsideTokenIn","type":"uint256"},{"internalType":"uint256","name":"_minUpsideTokenOut","type":"uint256"},{"internalType":"uint256","name":"_maxProtocolFeeBp","type":"uint256"}],"name":"take","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_positionId","type":"uint256"},{"internalType":"uint256","name":"_downsideTokenAmount","type":"uint256"}],"name":"untake","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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0000000000000000000000002fa4ab54543be08001e322e14311d900a5fcc004

-----Decoded View---------------
Arg [0] : _newOwner (address): 0x2fa4Ab54543bE08001e322E14311D900A5fcC004

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000002fa4ab54543be08001e322e14311d900a5fcc004