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// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.27;

/* == OZ == */
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {ERC20Burnable} from "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol";
import {ERC721} from "@openzeppelin/contracts/token/ERC721/ERC721.sol";

/* == CORE == */
import {Lotus} from "@core/Lotus.sol";
import {LotusBloomPool} from "./pools/LotusBloom.sol";

/* == ACTIONS == */
import {SwapActions, SwapActionParams} from "@actions/SwapActions.sol";

/* == UTILS == */
import {Time} from "@utils/Time.sol";
import {wdiv, wmul, sub, wpow} from "@utils/Math.sol";
import {Errors} from "@utils/Errors.sol";

/* == CONST == */
import "@const/Constants.sol";

struct UserRecord {
    uint160 shares;
    uint160 lockedLotus;
    uint128 rewardDebt;
    uint32 endTime;
}

/**
 * @title LotusStaking
 * @notice The staking contract of the Lotus system, allowing users to stake tokens, earn rewards, and compound earnings.
 * @dev This contract implements staking using ERC721 tokens as proof of staking positions. Users can stake and earn rewards based on locked periods.
 */
contract LotusStaking is ERC721, SwapActions {
    using SafeERC20 for *;

    //===========ENUMS===========//

    /**
     * @notice Enum to represent different staking pools with varying durations.
     */
    enum POOLS {
        DAY8, // 8-day pool
        DAY48, // 48-day pool
        DAY88 // 88-day pool

    }

    //===========CONST===========//
    uint32 public constant MIN_DURATION = 40 days;
    uint32 public constant MAX_DURATION = 1480 days;

    //=========IMMUTABLE=========//

    uint32 public immutable startTimestamp;
    LotusBloomPool public immutable lotusBloomPool;

    ERC20Burnable public immutable titanX;
    ERC20Burnable public immutable volt;
    Lotus public immutable lotus;

    //===========STATE===========//
    uint256 public totalShares;
    uint128 public rewardPerShare;
    uint96 public tokenId;

    uint32 public lastDistributedDay;

    /// @notice -> The minimum amount of shares needed to qualify for lotus bloom
    uint256 public minSharesToBloom;

    mapping(POOLS => uint256) public toDistribute;
    mapping(uint256 id => UserRecord record) public userRecords;
    mapping(address user => uint256 totalShares) public userShares;

    //==========ERRORS==========//
    error LotusStaking__InvalidDuration();
    error LotusStaking__NoSharesToClaim();
    error LotusStaking__LockPeriodNotOver();
    error LotusStaking__OnlyMintingAndBurning();

    //==========EVENTS==========//

    /**
     * @dev Emitted when a user stakes `lotus` tokens for a specific `duration`.
     * @param staker The address of the user staking.
     * @param lotus Amount of lotus tokens staked.
     * @param id The staking position token ID.
     * @param _shares The number of shares obtained from the staking.
     * @param duration The duration for which the tokens are staked.
     */
    event Staked(address indexed staker, uint256 indexed lotus, uint152 indexed id, uint256 _shares, uint32 duration);

    /**
     * @dev Emitted when a user unstakes their tokens.
     * @param shares The number of shares being unstaked.
     * @param lotusAmountReceived The amount of lotus tokens returned to the user.
     * @param _tokenId The staking position token ID.
     * @param recepient The address receiving the unstaked tokens.
     */
    event Unstaked(
        uint256 indexed shares, uint256 indexed lotusAmountReceived, uint256 indexed _tokenId, address recepient
    );

    /**
     * @dev Emitted when a user claims rewards.
     * @param id The staking position token ID.
     * @param rewards The amount of rewards claimed.
     * @param newRewardDebt The updated reward debt for the staking position.
     * @param ownerOfStake The owner of the staking position.
     */
    event Claimed(uint256 indexed id, uint256 indexed rewards, uint256 indexed newRewardDebt, address ownerOfStake);

    /**
     * @dev Emitted when rewards are distributed for a pool.
     * @param pool The pool where rewards are distributed.
     * @param amount The amount of rewards distributed.
     */
    event Distributed(POOLS indexed pool, uint256 indexed amount);

    /**
     * @dev Emitted when rewards are auto compounded
     * @param newShares The additional shares received from the compounding
     * @param stakeId The stake id that had auto compounded the rewards
     * @param ownerOfStake The owner of the stake
     */
    event CompoundedRewards(uint256 indexed newShares, uint160 indexed stakeId, address indexed ownerOfStake);

    //==========CONSTRUCTOR==========//

    constructor(
        uint32 _startTimestamp,
        address _vrfCoordinator,
        uint256 _subscriptionId,
        address _lotus,
        address _titanX,
        uint256 _minSharesToBloom,
        address _volt,
        bytes32 _keyHash,
        SwapActionParams memory _params
    ) SwapActions(_params) ERC721("Staking", "STK") {
        startTimestamp = _startTimestamp;

        lotus = Lotus(_lotus);
        titanX = ERC20Burnable(_titanX);
        volt = ERC20Burnable(_volt);
        minSharesToBloom = _minSharesToBloom;

        lotusBloomPool = new LotusBloomPool(
            address(this), _vrfCoordinator, _subscriptionId, _titanX, _keyHash, _params._owner, _startTimestamp
        );

        lastDistributedDay = 1;
    }

    //==========================//
    //==========PUBLIC==========//
    //==========================//

    function changeMinSharesToBloom(uint256 _newMinShares) external notAmount0(_newMinShares) onlyOwner {
        minSharesToBloom = _newMinShares;
    }

    /**
     * @notice Allows a user to stake a certain amount of Lotus tokens for a specific duration.
     * @param _duration The duration (in seconds) to lock the tokens for.
     * @param _lotusAmount The amount of Lotus tokens to stake.
     * @return _tokenId The ID of the staking position token created.
     * @return shares The number of shares granted for staking.
     */
    function stake(uint32 _duration, uint160 _lotusAmount)
        external
        notAmount0(_lotusAmount)
        returns (uint96 _tokenId, uint160 shares)
    {
        require(
            MIN_DURATION <= _duration && _duration <= MAX_DURATION && _duration % 24 hours == 0,
            LotusStaking__InvalidDuration()
        );

        updateRewardsIfNecessary();

        _tokenId = ++tokenId;

        shares = convertLotusToShares(_lotusAmount, _duration);

        userRecords[_tokenId] = UserRecord({
            endTime: Time.blockTs() + _duration,
            shares: shares,
            rewardDebt: rewardPerShare,
            lockedLotus: _lotusAmount
        });

        totalShares += shares;

        userShares[msg.sender] += shares;

        emit Staked(msg.sender, _lotusAmount, _tokenId, shares, _duration);

        lotus.transferFrom(msg.sender, address(this), _lotusAmount);

        if (userShares[msg.sender] >= minSharesToBloom) lotusBloomPool.participate(msg.sender);

        _mint(msg.sender, _tokenId);
    }

    /**
     * @notice Allows a user to batch check the total claimable rewards for multiple staking positions.
     * @param _ids The array of staking position token IDs.
     * @return toClaim The total amount of claimable rewards.
     */
    function batchClaimableAmount(uint160[] calldata _ids) external view returns (uint256 toClaim) {
        uint32 currentDay = _getCurrentDay();

        uint256 m_rewardsPerShare = rewardPerShare;

        bool distributeDay8 = (currentDay / 8 > lastDistributedDay / 8);
        bool distributeDay48 = (currentDay / 48 > lastDistributedDay / 48);
        bool distributeDay88 = (currentDay / 88 > lastDistributedDay / 88);

        if (distributeDay8) m_rewardsPerShare += uint72(wdiv(toDistribute[POOLS.DAY8], totalShares));
        if (distributeDay48) m_rewardsPerShare += uint72(wdiv(toDistribute[POOLS.DAY48], totalShares));
        if (distributeDay88) m_rewardsPerShare += uint72(wdiv(toDistribute[POOLS.DAY88], totalShares));

        for (uint256 i; i < _ids.length; ++i) {
            uint160 _id = _ids[i];

            UserRecord memory _rec = userRecords[_id];

            toClaim += wmul(_rec.shares, m_rewardsPerShare - _rec.rewardDebt);
        }
    }

    /**
     * @notice Allows a user to unstake their tokens after the staking period has ended.
     * @param _tokenId The staking position token ID.
     * @param _receiver The address to receive the unstaked tokens.
     */
    function unstake(uint160 _tokenId, address _receiver) public notAddress0(_receiver) notAmount0(_tokenId) {
        UserRecord memory record = userRecords[_tokenId];

        require(record.shares != 0, LotusStaking__NoSharesToClaim());
        require(record.endTime <= Time.blockTs(), LotusStaking__LockPeriodNotOver());
        isApprovedOrOwner(_tokenId, msg.sender);

        address ownerOfPosition = ownerOf(_tokenId);

        _claim(_tokenId, _receiver);

        uint256 _locked = record.lockedLotus;
        uint256 _shares = record.shares;

        delete userRecords[_tokenId];

        totalShares -= _shares;
        userShares[ownerOfPosition] -= _shares;

        emit Unstaked(_shares, _locked, _tokenId, _receiver);

        lotus.transfer(_receiver, _locked);

        if (userShares[ownerOfPosition] <= minSharesToBloom) lotusBloomPool.removeParticipant(ownerOfPosition);

        _burn(_tokenId);
    }

    function compoundRewards(uint160 _id, uint256 _amountVoltMin, uint256 _amountLotusMin, uint32 _deadline)
        external
        notExpired(_deadline)
    {
        updateRewardsIfNecessary();

        isApprovedOrOwner(_id, msg.sender);
        UserRecord storage _rec = userRecords[_id];

        uint256 amountToCompound = wmul(_rec.shares, rewardPerShare - _rec.rewardDebt);

        uint256 _voltAmount =
            swapExactInput(address(titanX), address(volt), amountToCompound, _amountVoltMin, _deadline);

        uint256 lotusAmount = swapExactInput(address(volt), address(lotus), _voltAmount, _amountLotusMin, _deadline);

        _rec.rewardDebt = rewardPerShare;
        _rec.lockedLotus += uint160(lotusAmount);
        _rec.shares += uint160(lotusAmount);

        address _ownerOfPosition = ownerOf(_id);

        userShares[_ownerOfPosition] += lotusAmount;

        if (userShares[_ownerOfPosition] >= minSharesToBloom) lotusBloomPool.participate(_ownerOfPosition);

        totalShares += lotusAmount;

        emit CompoundedRewards(lotusAmount, _id, ownerOf(_id));
    }

    function convertLotusToShares(uint160 _amount, uint32 _duration) public pure returns (uint160 shares) {
        shares = _amount;

        if (_duration <= 90 days) {
            shares += uint160(wmul(_amount, _LRank(_duration, 40 days, 90 days, 0, STAKING_LRANK_90DAYS)));
        } else if (_duration <= 365 days) {
            shares += uint160(
                wmul(_amount, _LRank(_duration, 90 days, 365 days, STAKING_LRANK_90DAYS, STAKING_LRANK_365DAYS))
            );
        } else if (_duration <= 730 days) {
            shares += uint160(
                wmul(_amount, _LRank(_duration, 365 days, 730 days, STAKING_LRANK_365DAYS, STAKING_LRANK_730DAYS))
            );
        } else if (_duration <= 1480 days) {
            shares += uint160(
                wmul(_amount, _LRank(_duration, 730 days, 1480 days, STAKING_LRANK_730DAYS, STAKING_LRANK_1480DAYS))
            );
        }
    }

    // Generic function to calculate the linear interpolation
    function _LRank(
        uint32 _duration,
        uint32 _lowerBoundDays,
        uint32 _upperBoundDays,
        uint256 _lowerMultiplier,
        uint256 _upperMultiplier
    ) private pure returns (uint256) {
        return _lowerMultiplier
            + (_duration - _lowerBoundDays) * (_upperMultiplier - _lowerMultiplier) / (_upperBoundDays - _lowerBoundDays);
    }

    /**
     * @notice Allows batch unstaking of multiple staking positions.
     * @param _ids Array of staking position token IDs.
     * @param _receiver Address to receive the unstaked tokens.
     */
    function batchUnstake(uint160[] calldata _ids, address _receiver) external {
        for (uint256 i; i < _ids.length; ++i) {
            unstake(_ids[i], _receiver);
        }
    }

    /**
     * @notice Allows a user to claim their staking rewards.
     * @param _tokenId The staking position token ID.
     * @param _receiver The address to receive the rewards.
     */
    function claim(uint160 _tokenId, address _receiver) public notAddress0(_receiver) notAmount0(_tokenId) {
        isApprovedOrOwner(_tokenId, msg.sender);
        _claim(_tokenId, _receiver);
    }

    /**
     * @notice Batch claim rewards for multiple staking positions.
     * @param _ids Array of staking position token IDs.
     * @param _receiver Address to receive the claimed rewards.
     */
    function batchClaim(uint160[] calldata _ids, address _receiver) external {
        for (uint256 i; i < _ids.length; ++i) {
            claim(_ids[i], _receiver);
        }
    }

    /**
     * @notice Checks if the user is authorized to operate on a given token.
     * @param _tokenId The staking position token ID.
     * @param _spender The address to check.
     */
    function isApprovedOrOwner(uint256 _tokenId, address _spender) public view {
        _checkAuthorized(ownerOf(_tokenId), _spender, _tokenId);
    }

    /**
     * @notice Distributes rewards into the staking pools.
     * @param _amount The amount of rewards to distribute.
     */
    function distribute(uint256 _amount) external notAmount0(_amount) {
        titanX.safeTransferFrom(msg.sender, address(this), _amount);
        _distribute(_amount);
    }

    /**
     * @notice Updates the staking rewards if necessary.
     */
    function updateRewardsIfNecessary() public {
        if (totalShares == 0) return;

        uint32 currentDay = _getCurrentDay();

        bool distributeDay8 = (currentDay / 8 > lastDistributedDay / 8);
        bool distributeDay48 = (currentDay / 48 > lastDistributedDay / 48);
        bool distributeDay88 = (currentDay / 88 > lastDistributedDay / 88);

        if (distributeDay8) _updateRewards(POOLS.DAY8, toDistribute);
        if (distributeDay48) _updateRewards(POOLS.DAY48, toDistribute);
        if (distributeDay88) _updateRewards(POOLS.DAY88, toDistribute);

        lastDistributedDay = currentDay;
    }

    //==========================//
    //=========INTERNAL=========//
    //==========================//

    /**
     * @dev Internal function to claim rewards for a staking position.
     * @param _tokenId The staking position token ID.
     * @param _receiver The address to receive the rewards.
     */
    function _claim(uint160 _tokenId, address _receiver) internal {
        UserRecord storage _rec = userRecords[_tokenId];
        updateRewardsIfNecessary();

        uint256 amountToClaim = wmul(_rec.shares, rewardPerShare - _rec.rewardDebt);
        _rec.rewardDebt = rewardPerShare;

        emit Claimed(_tokenId, amountToClaim, rewardPerShare, ownerOf(_tokenId));

        titanX.transfer(_receiver, amountToClaim);
    }

    /**
     * @dev Internal function to distribute rewards into pools.
     * @param amount The amount of rewards to distribute.
     */
    function _distribute(uint256 amount) internal {
        toDistribute[POOLS.DAY8] += wmul(amount, DAY8POOL_DIST);
        toDistribute[POOLS.DAY48] += wmul(amount, DAY48POOL_DIST);
        toDistribute[POOLS.DAY88] += wmul(amount, DAY88POOL_DIST);

        uint256 forLotusBloom = wmul(amount, LOTUS_BLOOM_POOL);

        titanX.safeTransfer(address(lotusBloomPool), forLotusBloom);
        lotusBloomPool.distributeRewards(uint128(forLotusBloom));

        updateRewardsIfNecessary();
    }

    /**
     * @dev Internal function to update rewards for a given pool.
     * @param pool The pool being updated.
     * @param toDist A reference to the mapping of distributions.
     */
    function _updateRewards(POOLS pool, mapping(POOLS => uint256) storage toDist) internal {
        if (toDist[pool] == 0) return;
        rewardPerShare += uint72(wdiv(toDist[pool], totalShares));

        emit Distributed(pool, toDist[pool]);
        toDistribute[pool] = 0;
    }

    /**
     * @dev Returns the current day since the contract started.
     * @return currentDay The current day.
     */
    function _getCurrentDay() internal view returns (uint32 currentDay) {
        currentDay = Time.dayGap(startTimestamp, Time.blockTs()) + 1;
    }

    //==========================//
    //=========OVERRIDE========//
    //==========================//

    /**
     * @dev Overrides the _update function from ERC721 to restrict token transfers.
     * @param to The address to update the ownership to.
     * @param _id The ID of the token.
     * @param auth The authorized address for the update.
     * @return The address of the token's previous owner.
     */
    function _update(address to, uint256 _id, address auth) internal override returns (address) {
        address from = _ownerOf(_id);
        require(from == address(0) || to == address(0), LotusStaking__OnlyMintingAndBurning());
        return super._update(to, _id, auth);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";
import {IERC20Permit} from "../extensions/IERC20Permit.sol";
import {Address} from "../../../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 An operation with an ERC20 token failed.
     */
    error SafeERC20FailedOperation(address token);

    /**
     * @dev Indicates a failed `decreaseAllowance` request.
     */
    error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);

    /**
     * @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.encodeCall(token.transfer, (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.encodeCall(token.transferFrom, (from, to, 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);
        forceApprove(token, spender, oldAllowance + value);
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no
     * value, non-reverting calls are assumed to be successful.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {
        unchecked {
            uint256 currentAllowance = token.allowance(address(this), spender);
            if (currentAllowance < requestedDecrease) {
                revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);
            }
            forceApprove(token, spender, currentAllowance - requestedDecrease);
        }
    }

    /**
     * @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.encodeCall(token.approve, (spender, value));

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

    /**
     * @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);
        if (returndata.length != 0 && !abi.decode(returndata, (bool))) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @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(token).code.length > 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/ERC20Burnable.sol)

pragma solidity ^0.8.20;

import {ERC20} from "../ERC20.sol";
import {Context} from "../../../utils/Context.sol";

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

    /**
     * @dev Destroys a `value` amount of tokens from `account`, deducting from
     * the caller's allowance.
     *
     * See {ERC20-_burn} and {ERC20-allowance}.
     *
     * Requirements:
     *
     * - the caller must have allowance for ``accounts``'s tokens of at least
     * `value`.
     */
    function burnFrom(address account, uint256 value) public virtual {
        _spendAllowance(account, _msgSender(), value);
        _burn(account, value);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/ERC721.sol)

pragma solidity ^0.8.20;

import {IERC721} from "./IERC721.sol";
import {IERC721Receiver} from "./IERC721Receiver.sol";
import {IERC721Metadata} from "./extensions/IERC721Metadata.sol";
import {Context} from "../../utils/Context.sol";
import {Strings} from "../../utils/Strings.sol";
import {IERC165, ERC165} from "../../utils/introspection/ERC165.sol";
import {IERC721Errors} from "../../interfaces/draft-IERC6093.sol";

/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension, but not including the Enumerable extension, which is available separately as
 * {ERC721Enumerable}.
 */
abstract contract ERC721 is Context, ERC165, IERC721, IERC721Metadata, IERC721Errors {
    using Strings for uint256;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    mapping(uint256 tokenId => address) private _owners;

    mapping(address owner => uint256) private _balances;

    mapping(uint256 tokenId => address) private _tokenApprovals;

    mapping(address owner => mapping(address operator => bool)) private _operatorApprovals;

    /**
     * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return
            interfaceId == type(IERC721).interfaceId ||
            interfaceId == type(IERC721Metadata).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721-balanceOf}.
     */
    function balanceOf(address owner) public view virtual returns (uint256) {
        if (owner == address(0)) {
            revert ERC721InvalidOwner(address(0));
        }
        return _balances[owner];
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view virtual returns (address) {
        return _requireOwned(tokenId);
    }

    /**
     * @dev See {IERC721Metadata-name}.
     */
    function name() public view virtual returns (string memory) {
        return _name;
    }

    /**
     * @dev See {IERC721Metadata-symbol}.
     */
    function symbol() public view virtual returns (string memory) {
        return _symbol;
    }

    /**
     * @dev See {IERC721Metadata-tokenURI}.
     */
    function tokenURI(uint256 tokenId) public view virtual returns (string memory) {
        _requireOwned(tokenId);

        string memory baseURI = _baseURI();
        return bytes(baseURI).length > 0 ? string.concat(baseURI, tokenId.toString()) : "";
    }

    /**
     * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
     * token will be the concatenation of the `baseURI` and the `tokenId`. Empty
     * by default, can be overridden in child contracts.
     */
    function _baseURI() internal view virtual returns (string memory) {
        return "";
    }

    /**
     * @dev See {IERC721-approve}.
     */
    function approve(address to, uint256 tokenId) public virtual {
        _approve(to, tokenId, _msgSender());
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view virtual returns (address) {
        _requireOwned(tokenId);

        return _getApproved(tokenId);
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual {
        _setApprovalForAll(_msgSender(), operator, approved);
    }

    /**
     * @dev See {IERC721-isApprovedForAll}.
     */
    function isApprovedForAll(address owner, address operator) public view virtual returns (bool) {
        return _operatorApprovals[owner][operator];
    }

    /**
     * @dev See {IERC721-transferFrom}.
     */
    function transferFrom(address from, address to, uint256 tokenId) public virtual {
        if (to == address(0)) {
            revert ERC721InvalidReceiver(address(0));
        }
        // Setting an "auth" arguments enables the `_isAuthorized` check which verifies that the token exists
        // (from != 0). Therefore, it is not needed to verify that the return value is not 0 here.
        address previousOwner = _update(to, tokenId, _msgSender());
        if (previousOwner != from) {
            revert ERC721IncorrectOwner(from, tokenId, previousOwner);
        }
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId) public {
        safeTransferFrom(from, to, tokenId, "");
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public virtual {
        transferFrom(from, to, tokenId);
        _checkOnERC721Received(from, to, tokenId, data);
    }

    /**
     * @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist
     *
     * IMPORTANT: Any overrides to this function that add ownership of tokens not tracked by the
     * core ERC721 logic MUST be matched with the use of {_increaseBalance} to keep balances
     * consistent with ownership. The invariant to preserve is that for any address `a` the value returned by
     * `balanceOf(a)` must be equal to the number of tokens such that `_ownerOf(tokenId)` is `a`.
     */
    function _ownerOf(uint256 tokenId) internal view virtual returns (address) {
        return _owners[tokenId];
    }

    /**
     * @dev Returns the approved address for `tokenId`. Returns 0 if `tokenId` is not minted.
     */
    function _getApproved(uint256 tokenId) internal view virtual returns (address) {
        return _tokenApprovals[tokenId];
    }

    /**
     * @dev Returns whether `spender` is allowed to manage `owner`'s tokens, or `tokenId` in
     * particular (ignoring whether it is owned by `owner`).
     *
     * WARNING: This function assumes that `owner` is the actual owner of `tokenId` and does not verify this
     * assumption.
     */
    function _isAuthorized(address owner, address spender, uint256 tokenId) internal view virtual returns (bool) {
        return
            spender != address(0) &&
            (owner == spender || isApprovedForAll(owner, spender) || _getApproved(tokenId) == spender);
    }

    /**
     * @dev Checks if `spender` can operate on `tokenId`, assuming the provided `owner` is the actual owner.
     * Reverts if `spender` does not have approval from the provided `owner` for the given token or for all its assets
     * the `spender` for the specific `tokenId`.
     *
     * WARNING: This function assumes that `owner` is the actual owner of `tokenId` and does not verify this
     * assumption.
     */
    function _checkAuthorized(address owner, address spender, uint256 tokenId) internal view virtual {
        if (!_isAuthorized(owner, spender, tokenId)) {
            if (owner == address(0)) {
                revert ERC721NonexistentToken(tokenId);
            } else {
                revert ERC721InsufficientApproval(spender, tokenId);
            }
        }
    }

    /**
     * @dev Unsafe write access to the balances, used by extensions that "mint" tokens using an {ownerOf} override.
     *
     * NOTE: the value is limited to type(uint128).max. This protect against _balance overflow. It is unrealistic that
     * a uint256 would ever overflow from increments when these increments are bounded to uint128 values.
     *
     * WARNING: Increasing an account's balance using this function tends to be paired with an override of the
     * {_ownerOf} function to resolve the ownership of the corresponding tokens so that balances and ownership
     * remain consistent with one another.
     */
    function _increaseBalance(address account, uint128 value) internal virtual {
        unchecked {
            _balances[account] += value;
        }
    }

    /**
     * @dev Transfers `tokenId` from its current owner to `to`, or alternatively mints (or burns) if the current owner
     * (or `to`) is the zero address. Returns the owner of the `tokenId` before the update.
     *
     * The `auth` argument is optional. If the value passed is non 0, then this function will check that
     * `auth` is either the owner of the token, or approved to operate on the token (by the owner).
     *
     * Emits a {Transfer} event.
     *
     * NOTE: If overriding this function in a way that tracks balances, see also {_increaseBalance}.
     */
    function _update(address to, uint256 tokenId, address auth) internal virtual returns (address) {
        address from = _ownerOf(tokenId);

        // Perform (optional) operator check
        if (auth != address(0)) {
            _checkAuthorized(from, auth, tokenId);
        }

        // Execute the update
        if (from != address(0)) {
            // Clear approval. No need to re-authorize or emit the Approval event
            _approve(address(0), tokenId, address(0), false);

            unchecked {
                _balances[from] -= 1;
            }
        }

        if (to != address(0)) {
            unchecked {
                _balances[to] += 1;
            }
        }

        _owners[tokenId] = to;

        emit Transfer(from, to, tokenId);

        return from;
    }

    /**
     * @dev Mints `tokenId` and transfers it to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - `to` cannot be the zero address.
     *
     * Emits a {Transfer} event.
     */
    function _mint(address to, uint256 tokenId) internal {
        if (to == address(0)) {
            revert ERC721InvalidReceiver(address(0));
        }
        address previousOwner = _update(to, tokenId, address(0));
        if (previousOwner != address(0)) {
            revert ERC721InvalidSender(address(0));
        }
    }

    /**
     * @dev Mints `tokenId`, transfers it to `to` and checks for `to` acceptance.
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeMint(address to, uint256 tokenId) internal {
        _safeMint(to, tokenId, "");
    }

    /**
     * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
     * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
     */
    function _safeMint(address to, uint256 tokenId, bytes memory data) internal virtual {
        _mint(to, tokenId);
        _checkOnERC721Received(address(0), to, tokenId, data);
    }

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     * This is an internal function that does not check if the sender is authorized to operate on the token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId) internal {
        address previousOwner = _update(address(0), tokenId, address(0));
        if (previousOwner == address(0)) {
            revert ERC721NonexistentToken(tokenId);
        }
    }

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *  As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     *
     * Emits a {Transfer} event.
     */
    function _transfer(address from, address to, uint256 tokenId) internal {
        if (to == address(0)) {
            revert ERC721InvalidReceiver(address(0));
        }
        address previousOwner = _update(to, tokenId, address(0));
        if (previousOwner == address(0)) {
            revert ERC721NonexistentToken(tokenId);
        } else if (previousOwner != from) {
            revert ERC721IncorrectOwner(from, tokenId, previousOwner);
        }
    }

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking that contract recipients
     * are aware of the ERC721 standard to prevent tokens from being forever locked.
     *
     * `data` is additional data, it has no specified format and it is sent in call to `to`.
     *
     * This internal function is like {safeTransferFrom} in the sense that it invokes
     * {IERC721Receiver-onERC721Received} on the receiver, and can be used to e.g.
     * implement alternative mechanisms to perform token transfer, such as signature-based.
     *
     * Requirements:
     *
     * - `tokenId` token must exist and be owned by `from`.
     * - `to` cannot be the zero address.
     * - `from` cannot be the zero address.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeTransfer(address from, address to, uint256 tokenId) internal {
        _safeTransfer(from, to, tokenId, "");
    }

    /**
     * @dev Same as {xref-ERC721-_safeTransfer-address-address-uint256-}[`_safeTransfer`], with an additional `data` parameter which is
     * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
     */
    function _safeTransfer(address from, address to, uint256 tokenId, bytes memory data) internal virtual {
        _transfer(from, to, tokenId);
        _checkOnERC721Received(from, to, tokenId, data);
    }

    /**
     * @dev Approve `to` to operate on `tokenId`
     *
     * The `auth` argument is optional. If the value passed is non 0, then this function will check that `auth` is
     * either the owner of the token, or approved to operate on all tokens held by this owner.
     *
     * Emits an {Approval} event.
     *
     * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
     */
    function _approve(address to, uint256 tokenId, address auth) internal {
        _approve(to, tokenId, auth, true);
    }

    /**
     * @dev Variant of `_approve` with an optional flag to enable or disable the {Approval} event. The event is not
     * emitted in the context of transfers.
     */
    function _approve(address to, uint256 tokenId, address auth, bool emitEvent) internal virtual {
        // Avoid reading the owner unless necessary
        if (emitEvent || auth != address(0)) {
            address owner = _requireOwned(tokenId);

            // We do not use _isAuthorized because single-token approvals should not be able to call approve
            if (auth != address(0) && owner != auth && !isApprovedForAll(owner, auth)) {
                revert ERC721InvalidApprover(auth);
            }

            if (emitEvent) {
                emit Approval(owner, to, tokenId);
            }
        }

        _tokenApprovals[tokenId] = to;
    }

    /**
     * @dev Approve `operator` to operate on all of `owner` tokens
     *
     * Requirements:
     * - operator can't be the address zero.
     *
     * Emits an {ApprovalForAll} event.
     */
    function _setApprovalForAll(address owner, address operator, bool approved) internal virtual {
        if (operator == address(0)) {
            revert ERC721InvalidOperator(operator);
        }
        _operatorApprovals[owner][operator] = approved;
        emit ApprovalForAll(owner, operator, approved);
    }

    /**
     * @dev Reverts if the `tokenId` doesn't have a current owner (it hasn't been minted, or it has been burned).
     * Returns the owner.
     *
     * Overrides to ownership logic should be done to {_ownerOf}.
     */
    function _requireOwned(uint256 tokenId) internal view returns (address) {
        address owner = _ownerOf(tokenId);
        if (owner == address(0)) {
            revert ERC721NonexistentToken(tokenId);
        }
        return owner;
    }

    /**
     * @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target address. This will revert if the
     * recipient doesn't accept the token transfer. The call is not executed if the target address is not a contract.
     *
     * @param from address representing the previous owner of the given token ID
     * @param to target address that will receive the tokens
     * @param tokenId uint256 ID of the token to be transferred
     * @param data bytes optional data to send along with the call
     */
    function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory data) private {
        if (to.code.length > 0) {
            try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {
                if (retval != IERC721Receiver.onERC721Received.selector) {
                    revert ERC721InvalidReceiver(to);
                }
            } catch (bytes memory reason) {
                if (reason.length == 0) {
                    revert ERC721InvalidReceiver(to);
                } else {
                    /// @solidity memory-safe-assembly
                    assembly {
                        revert(add(32, reason), mload(reason))
                    }
                }
            }
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.27;

/* === OZ === */
import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {ERC20Burnable} from "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol";
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";

/* = SYSTEM =  */
import {LotusMining, MiningStats} from "./Mining.sol";
import {LotusBuyAndBurn} from "./BuyAndBurn.sol";
import {LotusStaking} from "./Staking.sol";

/* == ACTIONS == */
import {SwapActionParams} from "./actions/SwapActions.sol";

/* = UNIV3 = */
import {IUniswapV3Pool} from "@uniswap/v3-core/contracts/interfaces/IUniswapV3Pool.sol";
import {INonfungiblePositionManager} from "@uniswap/v3-periphery/contracts/interfaces/INonfungiblePositionManager.sol";
import {IQuoter} from "@uniswap/v3-periphery/contracts/interfaces/IQuoter.sol";

/* LIBS == */
import {PoolAddress} from "@uniswap/v3-periphery/contracts/libraries/PoolAddress.sol";
import {OracleLibrary} from "@libs/OracleLibrary.sol";

/* == UTILS ==  */
import {sqrt} from "@utils/Math.sol";

/* = CONST = */
import "@const/Constants.sol";

/**
 * @title Lotus
 * @dev ERC20 token contract for LOTUS tokens.
 */
contract Lotus is ERC20Burnable, Ownable {
    //========IMMUTABLES========//

    address public immutable pool;
    LotusMining public mining;
    LotusStaking public staking;
    LotusBuyAndBurn public buyAndBurn;

    //===========ERRORS===========//

    error Lotus__OnlyMining();

    //=======CONSTRUCTOR=========//

    constructor(address _v3PositionManager, address _titanX, address _volt, address _v3Quoter)
        ERC20("LOTUS", "LOTUS")
        Ownable(msg.sender)
    {
        _mint(LOTUS_LIQUIDITY_BONDING, 33_333_340e18);
        pool = _createUniswapV3Pool(_titanX, _volt, _v3Quoter, _v3PositionManager);
    }

    //=======MODIFIERS=========//

    modifier onlyMining() {
        _onlyMining();
        _;
    }

    function setBnB(LotusBuyAndBurn _bnb) external onlyOwner {
        buyAndBurn = _bnb;
    }

    function setStaking(LotusStaking _staking) external onlyOwner {
        staking = _staking;
    }

    function setMining(LotusMining _mining) external onlyOwner {
        mining = _mining;
    }

    //==========================//
    //==========PUBLIC==========//
    //==========================//

    function emitLotus(address _receiver, uint256 _amount) external onlyMining {
        _mint(_receiver, _amount);
    }

    //==========================//
    //=========INTERNAL=========//
    //==========================//

    function _createUniswapV3Pool(
        address _titanX,
        address _volt,
        address UNISWAP_V3_QUOTER,
        address UNISWAP_V3_POSITION_MANAGER
    ) internal returns (address _pool) {
        address _lotus = address(this);

        IQuoter quoter = IQuoter(UNISWAP_V3_QUOTER);

        bytes memory path = abi.encodePacked(address(_titanX), POOL_FEE, address(_volt));

        uint256 voltAmount = quoter.quoteExactInput(path, INITIAL_TITAN_X_FOR_LIQ);

        uint256 lotusAmount = INITIAL_LOTUS_FOR_LP;

        (address token0, address token1) = _lotus < _volt ? (_lotus, _volt) : (_volt, _lotus);

        (uint256 amount0, uint256 amount1) = token0 == _volt ? (voltAmount, lotusAmount) : (lotusAmount, voltAmount);

        uint160 sqrtPX96 = uint160((sqrt((amount1 * 1e18) / amount0) * 2 ** 96) / 1e9);

        INonfungiblePositionManager manager = INonfungiblePositionManager(UNISWAP_V3_POSITION_MANAGER);

        _pool = manager.createAndInitializePoolIfNecessary(token0, token1, POOL_FEE, sqrtPX96);

        IUniswapV3Pool(_pool).increaseObservationCardinalityNext(uint16(100));
    }

    function _onlyMining() internal view {
        require(msg.sender == address(mining), Lotus__OnlyMining());
    }
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.27;

/* == OZ == */
import {EnumerableSet} from "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";
import {IERC20} from "@openzeppelin/contracts/interfaces/IERC20.sol";

/* == CHAINLINK == */
import {VRFConsumerBaseV2Plus} from "@chainlink/contracts/src/v0.8/vrf/dev/VRFConsumerBaseV2Plus.sol";
import {VRFV2PlusClient} from "@chainlink/contracts/src/v0.8/vrf/dev/libraries/VRFV2PlusClient.sol";

/* == UTILS ==  */
import {Time} from "@utils/Time.sol";
import {Errors} from "@utils/Errors.sol";

struct WinnerRequest {
    uint128 upForGrabs; // To total rewards up for grabs at the time of requesting
    bool fulfilled; // Whether the request has been fullfilled
}

/**
 * @title LotusBloomPool
 * @dev A staking pool contract for managing participants, distributing rewards, and selecting winners based on randomness.
 */
contract LotusBloomPool is VRFConsumerBaseV2Plus, Errors {
    using EnumerableSet for EnumerableSet.AddressSet;

    /* == CONST == */
    uint256 INTERVAL_TIME = 2 weeks;

    /* == IMMUTABLE ==  */

    /// @notice Address of the staking contract
    address immutable staking;

    address public admin;

    bytes32 public keyHash;
    uint16 public requestConfirmations = 3;

    IERC20 immutable titanX;

    /// @notice The start timestamp for the pool
    uint32 immutable startTimestamp;

    /// @notice Chainlink subscription ID for requesting randomness
    uint256 immutable subscriptionId;

    /* == STATE ==  */

    /// @notice Stores the ID of the last randomness request
    uint256 lastRequestId;

    /// @notice Mapping from randomness request ID to WinnerRequest details
    mapping(uint256 requestId => WinnerRequest) requests;

    /// @notice Last timestamp when bi-weekly interval logic was called
    uint32 public lastIntervalCall;

    /// @notice The total amount of rewards available to be distributed
    uint128 public upForGrabs;

    /// @notice Set of participants in the pool
    EnumerableSet.AddressSet participants;

    /* == MODIFIERS ==  */

    /**
     * @dev Modifier to restrict function access to only the staking contract.
     */
    modifier onlyStaking() {
        _onlyStaking();
        _;
    }

    /**
     * @dev Modifier to ensure no pending randomness requests.
     * Reverts if a previous randomness request has not been fulfilled yet.
     */
    modifier noPendingRandomness() {
        _noPendingRandomness();
        _;
    }

    modifier onlyAdmin() {
        _onlyAdmin();
        _;
    }

    /* == ERRORS ==  */

    /// @notice Error thrown when the caller is not the staking contract.
    error OnlyStaking();

    /// @notice Error thrown when randomness is requested but a previous request is still pending.
    error RandomnessAlreadyRequested();

    /// @notice Error thrown when an operation is called before the interval time has passed.
    error OnlyAfterIntervalTime();

    /// @notice Error thrown when trying to pick a winner, while having no rewards acumulated.
    error EmptyTreasury();

    /// @notice Error thrown when trying to pick a winner, while having no participants
    error NoParticipation();

    ///@notice Error thrown when a non-admin user is trying to access an admin function
    error OnlyAdmin();

    /* == EVENTS == */

    event WinnerSelected(address indexed winner, uint256 indexed amountWon);

    /* == CONSTRUCTOR ==  */

    /**
     * @notice Initializes the contract with the staking contract address, VRF coordinator, subscription ID, and start timestamp.
     * @param _staking Address of the staking contract.
     * @param _vrfCoordinator Address of the Chainlink VRF coordinator.
     * @param _subscriptionId The Chainlink subscription ID for randomness requests.
     * @param _startTimestamp Start timestamp for the pool.
     */
    constructor(
        address _staking,
        address _vrfCoordinator,
        uint256 _subscriptionId,
        address _titanX,
        bytes32 _keyHash,
        address _admin,
        uint32 _startTimestamp
    ) VRFConsumerBaseV2Plus(_vrfCoordinator) {
        staking = _staking;
        startTimestamp = _startTimestamp;
        titanX = IERC20(_titanX);
        lastIntervalCall = _startTimestamp;
        keyHash = _keyHash;
        subscriptionId = _subscriptionId;
        admin = _admin;
    }

    /* == ADMIN == */
    function changeRequestConfirmations(uint16 _newRequestConfirmations)
        external
        notAmount0(_newRequestConfirmations)
        onlyAdmin
    {
        requestConfirmations = _newRequestConfirmations;
    }

    function changeKeyHash(bytes32 _newKeyHash) external onlyAdmin {
        keyHash = _newKeyHash;
    }

    /* == EXTERNAL ==  */

    /**
     * @notice Requests random words to determine the winner and distribute rewards.
     * @dev Ensures that the function is called only after the defined interval time has passed,
     * and no other randomness request is pending.
     * @return requestId The ID of the randomness request.
     */
    function pickWinner() external noPendingRandomness returns (uint256 requestId) {
        require(upForGrabs != 0, EmptyTreasury());
        require(lastIntervalCall + INTERVAL_TIME <= Time.blockTs(), OnlyAfterIntervalTime());
        require(participants.length() != 0, NoParticipation());

        requestId = s_vrfCoordinator.requestRandomWords(
            VRFV2PlusClient.RandomWordsRequest({
                keyHash: keyHash,
                subId: subscriptionId,
                requestConfirmations: requestConfirmations,
                callbackGasLimit: 250_000,
                numWords: 1,
                extraArgs: VRFV2PlusClient._argsToBytes(VRFV2PlusClient.ExtraArgsV1({nativePayment: false}))
            })
        );

        lastRequestId = requestId;

        requests[requestId] = WinnerRequest({fulfilled: false, upForGrabs: upForGrabs});
    }

    /**
     * @notice Checks if a user is a participant in the pool.
     * @param _user Address of the user.
     * @return bool Returns true if the user is a participant.
     */
    function isParticipant(address _user) public view returns (bool) {
        return participants.contains(_user);
    }

    /**
     * @notice Fulfills the randomness request and selects a winner from the participants.
     * @param requestId The ID of the randomness request.
     * @param randomWords Array of random words provided by Chainlink VRF.
     */
    function fulfillRandomWords(uint256 requestId, uint256[] calldata randomWords) internal override {
        WinnerRequest storage _winnerReq = requests[requestId];

        uint256 missedIntervals = (Time.blockTs() - lastIntervalCall) / INTERVAL_TIME;

        lastIntervalCall = uint32(lastIntervalCall + (INTERVAL_TIME * missedIntervals));

        uint256 randomness = randomWords[0];

        address winner = participants.at(randomness % participants.length());

        upForGrabs -= _winnerReq.upForGrabs;

        titanX.transfer(winner, _winnerReq.upForGrabs);

        emit WinnerSelected(winner, _winnerReq.upForGrabs);

        _winnerReq.fulfilled = true;
    }

    /**
     * @notice Adds a participant to the pool.
     * @dev Can only be called by the staking contract.
     * @param _participant Address of the participant to add.
     */
    function participate(address _participant) external onlyStaking noPendingRandomness {
        participants.add(_participant);
    }

    /**
     * @notice Removes a participant from the pool.
     * @dev Can only be called by the staking contract.
     * @param _participant Address of the participant to remove.
     */
    function removeParticipant(address _participant) external onlyStaking noPendingRandomness {
        participants.remove(_participant);
    }

    /**
     * @notice Increases the reward pool by a specified amount.
     * @dev Can only be called by the staking contract.
     * @param _amount Amount to add to the reward pool.
     */
    function distributeRewards(uint128 _amount) external onlyStaking {
        upForGrabs += _amount;
    }

    /* == PRIVATE ==  */

    /**
     * @dev Internal function to restrict access to only the staking contract.
     * @notice Throws OnlyStaking error if the caller is not the staking contract.
     */
    function _onlyStaking() internal view {
        require(msg.sender == staking, OnlyStaking());
    }

    /**
     * @dev Internal function to check that no pending randomness requests are active.
     * @notice Throws RandomnessAlreadyRequested if the last randomness request is still pending.
     */
    function _noPendingRandomness() internal view {
        WinnerRequest memory _lastReq = requests[lastRequestId];
        require(lastRequestId == 0 || _lastReq.fulfilled, RandomnessAlreadyRequested());
    }

    function _onlyAdmin() internal view {
        require(msg.sender == admin, OnlyAdmin());
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.27;

/* == OZ == */
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";

/* LIBS == */
import {PoolAddress} from "@libs/PoolAddress.sol";
import {OracleLibrary} from "@libs/OracleLibrary.sol";

/* == UTILS == */
import {wmul, min} from "@utils/Math.sol";
import {Errors} from "@utils/Errors.sol";

/* == UNIV3 == */
import {TickMath} from "@uniswap/v3-core/contracts/libraries/TickMath.sol";

/* == INTERFACES */
import {ISwapRouter} from "@uniswap/v3-periphery/contracts/interfaces/ISwapRouter.sol";
// import {ISwapRouter} from "../../test/mocks/ISwapRouter.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

/* == CONST == */
import "@const/Constants.sol";

/// @notice Struct representing slippage settings for a pool.
struct Slippage {
    uint224 slippage; //< Slippage in WAD (scaled by 1e18)
    uint32 twapLookback; //< TWAP lookback period in minutes (used as seconds in code)
}

struct SwapActionParams {
    address _v3Router;
    address _v3Factory;
    address _owner;
}

/**
 * @title SwapActions
 * @notice A contract that facilitates token swapping on Uniswap V3 with slippage management.
 * @dev Uses Uniswap V3 Router and Oracle libraries for swap actions and TWAP calculations.
 */
contract SwapActions is Ownable, Errors {
    //==========IMMUTABLE==========//

    /// @notice Address of the Uniswap V3 Router
    address public immutable uniswapV3Router;

    /// @notice Address of the Uniswap V3 Factory
    address public immutable v3Factory;

    //==========STATE==========//

    /// @notice Address of the admin responsible for managing slippage
    address public slippageAdmin;

    /// @notice Mapping of pool addresses to their respective slippage settings
    mapping(address pool => Slippage) public slippageConfigs;

    //==========ERRORS==========//

    /// @notice Thrown when an invalid slippage is provided
    error SwapActions__InvalidSlippage();

    /// @notice Thrown when a non-admin/non-owner attempts to perform slippage actions
    error SwapActions__OnlySlippageAdmin();

    //==========EVENTS===========//

    event SlippageAdminChanged(address indexed oldAdmin, address indexed newAdmin);
    event SlippageConfigChanged(address indexed pool, uint224 indexed newSlippage, uint32 indexed newLookback);

    //========MODIFIERS==========//

    /**
     * @dev Ensures the caller is either the slippage admin or the contract owner.
     */
    modifier onlySlippageAdminOrOwner() {
        _onlySlippageAdminOrOwner();
        _;
    }

    //========CONSTRUCTOR==========//

    /**
     * @param params The aprams to initialize the SwapAcitons contract.
     */
    constructor(SwapActionParams memory params) Ownable(params._owner) {
        uniswapV3Router = params._v3Router;
        v3Factory = params._v3Factory;
        slippageAdmin = params._owner;
    }

    //========EXTERNAL/PUBLIC==========//

    /**
     * @notice Change the address of the slippage admin.
     * @param _new New slippage admin address.
     * @dev Only callable by the contract owner.
     */
    function changeSlippageAdmin(address _new) external notAddress0(_new) onlyOwner {
        emit SlippageAdminChanged(slippageAdmin, _new);

        slippageAdmin = _new;
    }

    /**
     * @notice Change slippage configuration for a specific pool.
     * @param pool Address of the Uniswap V3 pool.
     * @param _newSlippage New slippage value (in WAD).
     * @param _newLookBack New TWAP lookback period (in minutes).
     * @dev Only callable by the slippage admin or the owner.
     */
    function changeSlippageConfig(address pool, uint224 _newSlippage, uint32 _newLookBack)
        external
        notAmount0(_newLookBack)
        onlySlippageAdminOrOwner
    {
        require(_newSlippage <= WAD, SwapActions__InvalidSlippage());

        emit SlippageConfigChanged(pool, _newSlippage, _newLookBack);

        slippageConfigs[pool] = Slippage({slippage: _newSlippage, twapLookback: _newLookBack});
    }

    //========INTERNAL/PRIVATE==========//

    /**
     * @notice Perform an exact input swap on Uniswap V3.
     * @param tokenIn Address of the input token.
     * @param tokenOut Address of the output token.
     * @param tokenInAmount Amount of the input token to swap.
     * @param minAmountOut Optional minimum amount out, if it's 0 it uses the twap
     * @param deadline Deadline timestamp for the swap.
     * @return amountReceived Amount of the output token received.
     * @dev The function uses the TWAP (Time-Weighted Average Price) to ensure the swap is performed within slippage tolerance.
     */
    function swapExactInput(
        address tokenIn,
        address tokenOut,
        uint256 tokenInAmount,
        uint256 minAmountOut,
        uint32 deadline
    ) internal returns (uint256 amountReceived) {
        IERC20(tokenIn).approve(uniswapV3Router, tokenInAmount);

        bytes memory path = abi.encodePacked(tokenIn, POOL_FEE, tokenOut);

        (uint256 twapAmount, uint224 slippage) = getTwapAmount(tokenIn, tokenOut, tokenInAmount);

        uint256 minAmount = minAmountOut == 0 ? wmul(twapAmount, slippage) : minAmountOut;

        ISwapRouter.ExactInputParams memory params = ISwapRouter.ExactInputParams({
            path: path,
            recipient: address(this),
            deadline: deadline,
            amountIn: tokenInAmount,
            amountOutMinimum: minAmount
        });

        return ISwapRouter(uniswapV3Router).exactInput(params);
    }

    /**
     * @notice Get the TWAP (Time-Weighted Average Price) and slippage for a given token pair.
     * @param tokenIn Address of the input token.
     * @param tokenOut Address of the output token.
     * @param amount Amount of the input token.
     * @return twapAmount The TWAP amount of the output token for the given input.
     * @return slippage The slippage tolerance for the pool.
     */
    function getTwapAmount(address tokenIn, address tokenOut, uint256 amount)
        public
        view
        returns (uint256 twapAmount, uint224 slippage)
    {
        address poolAddress = PoolAddress.computeAddress(v3Factory, PoolAddress.getPoolKey(tokenIn, tokenOut, POOL_FEE));

        Slippage memory slippageConfig = slippageConfigs[poolAddress];

        if (slippageConfig.twapLookback == 0 && slippageConfig.slippage == 0) {
            slippageConfig = Slippage({twapLookback: 15, slippage: WAD - 0.2e18});
        }

        uint32 secondsAgo = slippageConfig.twapLookback * 60;
        uint32 oldestObservation = OracleLibrary.getOldestObservationSecondsAgo(poolAddress);
        if (oldestObservation < secondsAgo) secondsAgo = oldestObservation;

        (int24 arithmeticMeanTick,) = OracleLibrary.consult(poolAddress, secondsAgo);
        uint160 sqrtPriceX96 = TickMath.getSqrtRatioAtTick(arithmeticMeanTick);

        slippage = slippageConfig.slippage;
        twapAmount = OracleLibrary.getQuoteForSqrtRatioX96(sqrtPriceX96, amount, tokenIn, tokenOut);
    }

    /**
     * @dev Internal function to check if the caller is the slippage admin or contract owner.
     */
    function _onlySlippageAdminOrOwner() private view {
        require(msg.sender == slippageAdmin || msg.sender == owner(), SwapActions__OnlySlippageAdmin());
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.27;

library Time {
    ///@notice The cut-off time in seconds from the start of the day for a day turnover, equivalent to 16 hours (57,600 seconds).
    uint32 constant TURN_OVER_TIME = 57600;

    ///@notice The total number of seconds in a day.
    uint32 constant SECONDS_PER_DAY = 86400;

    /**
     * @notice Returns the current block timestamp.
     * @dev This function retrieves the timestamp using assembly for gas efficiency.
     * @return ts The current block timestamp.
     */
    function blockTs() internal view returns (uint32 ts) {
        assembly {
            ts := timestamp()
        }
    }

    /**
     * @notice Calculates the number of weeks passed since a given timestamp.
     * @dev Uses assembly to retrieve the current timestamp and calculates the number of turnover time periods passed.
     * @param t The starting timestamp.
     * @return weeksPassed The number of weeks that have passed since the provided timestamp.
     */
    function weekSince(uint32 t) internal view returns (uint32 weeksPassed) {
        assembly {
            let currentTime := timestamp()
            let timeElapsed := sub(currentTime, t)

            weeksPassed := div(timeElapsed, TURN_OVER_TIME)
        }
    }

    /**
     * @notice Calculates the number of full days between two timestamps.
     * @dev Subtracts the start time from the end time and divides by the seconds per day.
     * @param start The starting timestamp.
     * @param end The ending timestamp.
     * @return daysPassed The number of full days between the two timestamps.
     */
    function dayGap(uint32 start, uint256 end) public pure returns (uint32 daysPassed) {
        assembly {
            daysPassed := div(sub(end, start), SECONDS_PER_DAY)
        }
    }

    function weekDayByT(uint32 t) public pure returns (uint8 weekDay) {
        assembly {
            // Subtract 14 hours from the timestamp
            let adjustedTimestamp := sub(t, TURN_OVER_TIME)

            // Divide by the number of seconds in a day (86400)
            let days := div(adjustedTimestamp, SECONDS_PER_DAY)

            // Add 4 to align with weekday and calculate mod 7
            let result := mod(add(days, 4), 7)

            // Store result as uint8
            weekDay := result
        }
    }

    /**
     * @notice Calculates the end of the day at 2 PM UTC based on a given timestamp.
     * @dev Adjusts the provided timestamp by subtracting the turnover time, calculates the next day's timestamp at 2 PM UTC.
     * @param t The starting timestamp.
     * @return nextDayStartAt2PM The timestamp for the next day ending at 2 PM UTC.
     */
    function getDayEnd(uint32 t) public pure returns (uint32 nextDayStartAt2PM) {
        // Adjust the timestamp to the cutoff time (2 PM UTC)
        uint32 adjustedTime = t - TURN_OVER_TIME;

        // Calculate the number of days since Unix epoch
        uint32 daysSinceEpoch = adjustedTime / 86400;

        // Calculate the start of the next day at 2 PM UTC
        nextDayStartAt2PM = (daysSinceEpoch + 1) * 86400 + TURN_OVER_TIME;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.27;

/* solhint-disable func-visibility, no-inline-assembly */

error Math__toInt256_overflow();
error Math__toUint64_overflow();
error Math__add_overflow_signed();
error Math__sub_overflow_signed();
error Math__mul_overflow_signed();
error Math__mul_overflow();
error Math__div_overflow();

uint256 constant WAD = 1e18;

/// @dev Taken from https://github.com/Vectorized/solady/blob/6d706e05ef43cbed234c648f83c55f3a4bb0a520/src/utils/SafeCastLib.sol#L367
function toInt256(uint256 x) pure returns (int256) {
    if (x >= 1 << 255) revert Math__toInt256_overflow();
    return int256(x);
}

/// @dev Taken from https://github.com/Vectorized/solady/blob/6d706e05ef43cbed234c648f83c55f3a4bb0a520/src/utils/SafeCastLib.sol#L53
function toUint64(uint256 x) pure returns (uint64) {
    if (x >= 1 << 64) revert Math__toUint64_overflow();
    return uint64(x);
}

/// @dev Taken from https://github.com/Vectorized/solady/blob/6d706e05ef43cbed234c648f83c55f3a4bb0a520/src/utils/FixedPointMathLib.sol#L602
function abs(int256 x) pure returns (uint256 z) {
    assembly ("memory-safe") {
        let mask := sub(0, shr(255, x))
        z := xor(mask, add(mask, x))
    }
}

/// @dev Taken from https://github.com/Vectorized/solady/blob/6d706e05ef43cbed234c648f83c55f3a4bb0a520/src/utils/FixedPointMathLib.sol#L620
function min(uint256 x, uint256 y) pure returns (uint256 z) {
    assembly ("memory-safe") {
        z := xor(x, mul(xor(x, y), lt(y, x)))
    }
}

/// @dev Taken from https://github.com/Vectorized/solady/blob/6d706e05ef43cbed234c648f83c55f3a4bb0a520/src/utils/FixedPointMathLib.sol#L628
function min(int256 x, int256 y) pure returns (int256 z) {
    assembly ("memory-safe") {
        z := xor(x, mul(xor(x, y), slt(y, x)))
    }
}

/// @dev Taken from https://github.com/Vectorized/solady/blob/6d706e05ef43cbed234c648f83c55f3a4bb0a520/src/utils/FixedPointMathLib.sol#L636
function max(uint256 x, uint256 y) pure returns (uint256 z) {
    assembly ("memory-safe") {
        z := xor(x, mul(xor(x, y), gt(y, x)))
    }
}

/// @dev Taken from https://github.com/makerdao/dss/blob/fa4f6630afb0624d04a003e920b0d71a00331d98/src/vat.sol#L74
function add(uint256 x, int256 y) pure returns (uint256 z) {
    assembly ("memory-safe") {
        z := add(x, y)
    }
    if ((y > 0 && z < x) || (y < 0 && z > x)) {
        revert Math__add_overflow_signed();
    }
}

/// @dev Taken from https://github.com/makerdao/dss/blob/fa4f6630afb0624d04a003e920b0d71a00331d98/src/vat.sol#L79
function sub(uint256 x, uint256 y) pure returns (uint256 z) {
    assembly ("memory-safe") {
        z := sub(x, y)
    }
    if ((y > 0 && z > x) || (y < 0 && z < x)) {
        revert Math__sub_overflow_signed();
    }
}

/// @dev Taken from https://github.com/makerdao/dss/blob/fa4f6630afb0624d04a003e920b0d71a00331d98/src/vat.sol#L84
function mul(uint256 x, int256 y) pure returns (int256 z) {
    unchecked {
        z = int256(x) * y;
        if (int256(x) < 0 || (y != 0 && z / y != int256(x))) {
            revert Math__mul_overflow_signed();
        }
    }
}

/// @dev Equivalent to `(x * y) / WAD` rounded down.
/// @dev Taken from https://github.com/Vectorized/solady/blob/6d706e05ef43cbed234c648f83c55f3a4bb0a520/src/utils/FixedPointMathLib.sol#L54
function wmul(uint256 x, uint256 y) pure returns (uint256 z) {
    assembly ("memory-safe") {
        // Equivalent to `require(y == 0 || x <= type(uint256).max / y)`.
        if mul(y, gt(x, div(not(0), y))) {
            // Store the function selector of `Math__mul_overflow()`.
            mstore(0x00, 0xc4c5d7f5)

            // Revert with (offset, size).
            revert(0x1c, 0x04)
        }
        z := div(mul(x, y), WAD)
    }
}

function wmul(uint256 x, int256 y) pure returns (int256 z) {
    unchecked {
        z = mul(x, y) / int256(WAD);
    }
}

/// @dev Equivalent to `(x * y) / WAD` rounded up.
/// @dev Taken from https://github.com/Vectorized/solady/blob/969a78905274b32cdb7907398c443f7ea212e4f4/src/utils/FixedPointMathLib.sol#L69C22-L69C22
function wmulUp(uint256 x, uint256 y) pure returns (uint256 z) {
    /// @solidity memory-safe-assembly
    assembly {
        // Equivalent to `require(y == 0 || x <= type(uint256).max / y)`.
        if mul(y, gt(x, div(not(0), y))) {
            // Store the function selector of `Math__mul_overflow()`.
            mstore(0x00, 0xc4c5d7f5)
            // Revert with (offset, size).
            revert(0x1c, 0x04)
        }
        z := add(iszero(iszero(mod(mul(x, y), WAD))), div(mul(x, y), WAD))
    }
}

/// @dev Equivalent to `(x * WAD) / y` rounded down.
/// @dev Taken from https://github.com/Vectorized/solady/blob/6d706e05ef43cbed234c648f83c55f3a4bb0a520/src/utils/FixedPointMathLib.sol#L84
function wdiv(uint256 x, uint256 y) pure returns (uint256 z) {
    assembly ("memory-safe") {
        // Equivalent to `require(y != 0 && (WAD == 0 || x <= type(uint256).max / WAD))`.
        if iszero(mul(y, iszero(mul(WAD, gt(x, div(not(0), WAD)))))) {
            // Store the function selector of `Math__div_overflow()`.
            mstore(0x00, 0xbcbede65)

            // Revert with (offset, size).
            revert(0x1c, 0x04)
        }
        z := div(mul(x, WAD), y)
    }
}

/// @dev Equivalent to `(x * WAD) / y` rounded up.
/// @dev Taken from https://github.com/Vectorized/solady/blob/969a78905274b32cdb7907398c443f7ea212e4f4/src/utils/FixedPointMathLib.sol#L99
function wdivUp(uint256 x, uint256 y) pure returns (uint256 z) {
    /// @solidity memory-safe-assembly
    assembly {
        // Equivalent to `require(y != 0 && (WAD == 0 || x <= type(uint256).max / WAD))`.
        if iszero(mul(y, iszero(mul(WAD, gt(x, div(not(0), WAD)))))) {
            // Store the function selector of `Math__div_overflow()`.
            mstore(0x00, 0xbcbede65)
            // Revert with (offset, size).
            revert(0x1c, 0x04)
        }
        z := add(iszero(iszero(mod(mul(x, WAD), y))), div(mul(x, WAD), y))
    }
}

/// @dev Taken from https://github.com/makerdao/dss/blob/fa4f6630afb0624d04a003e920b0d71a00331d98/src/jug.sol#L62
function wpow(uint256 x, uint256 n, uint256 b) pure returns (uint256 z) {
    unchecked {
        assembly ("memory-safe") {
            switch n
            case 0 { z := b }
            default {
                switch x
                case 0 { z := 0 }
                default {
                    switch mod(n, 2)
                    case 0 { z := b }
                    default { z := x }
                    let half := div(b, 2) // for rounding.
                    for { n := div(n, 2) } n { n := div(n, 2) } {
                        let xx := mul(x, x)
                        if shr(128, x) { revert(0, 0) }
                        let xxRound := add(xx, half)
                        if lt(xxRound, xx) { revert(0, 0) }
                        x := div(xxRound, b)
                        if mod(n, 2) {
                            let zx := mul(z, x)
                            if and(iszero(iszero(x)), iszero(eq(div(zx, x), z))) { revert(0, 0) }
                            let zxRound := add(zx, half)
                            if lt(zxRound, zx) { revert(0, 0) }
                            z := div(zxRound, b)
                        }
                    }
                }
            }
        }
    }
}

/// @dev Taken from https://github.com/Vectorized/solady/blob/cde0a5fb594da8655ba6bfcdc2e40a7c870c0cc0/src/utils/FixedPointMathLib.sol#L110
/// @dev Equivalent to `x` to the power of `y`.
/// because `x ** y = (e ** ln(x)) ** y = e ** (ln(x) * y)`.
function wpow(int256 x, int256 y) pure returns (int256) {
    // Using `ln(x)` means `x` must be greater than 0.
    return wexp((wln(x) * y) / int256(WAD));
}

/// @dev Taken from https://github.com/Vectorized/solady/blob/cde0a5fb594da8655ba6bfcdc2e40a7c870c0cc0/src/utils/FixedPointMathLib.sol#L116
/// @dev Returns `exp(x)`, denominated in `WAD`.
function wexp(int256 x) pure returns (int256 r) {
    unchecked {
        // When the result is < 0.5 we return zero. This happens when
        // x <= floor(log(0.5e18) * 1e18) ~ -42e18
        if (x <= -42139678854452767551) return r;

        /// @solidity memory-safe-assembly
        assembly {
            // When the result is > (2**255 - 1) / 1e18 we can not represent it as an
            // int. This happens when x >= floor(log((2**255 - 1) / 1e18) * 1e18) ~ 135.
            if iszero(slt(x, 135305999368893231589)) {
                mstore(0x00, 0xa37bfec9) // `ExpOverflow()`.
                revert(0x1c, 0x04)
            }
        }

        // x is now in the range (-42, 136) * 1e18. Convert to (-42, 136) * 2**96
        // for more intermediate precision and a binary basis. This base conversion
        // is a multiplication by 1e18 / 2**96 = 5**18 / 2**78.
        x = (x << 78) / 5 ** 18;

        // Reduce range of x to (-½ ln 2, ½ ln 2) * 2**96 by factoring out powers
        // of two such that exp(x) = exp(x') * 2**k, where k is an integer.
        // Solving this gives k = round(x / log(2)) and x' = x - k * log(2).
        int256 k = ((x << 96) / 54916777467707473351141471128 + 2 ** 95) >> 96;
        x = x - k * 54916777467707473351141471128;

        // k is in the range [-61, 195].

        // Evaluate using a (6, 7)-term rational approximation.
        // p is made monic, we'll multiply by a scale factor later.
        int256 y = x + 1346386616545796478920950773328;
        y = ((y * x) >> 96) + 57155421227552351082224309758442;
        int256 p = y + x - 94201549194550492254356042504812;
        p = ((p * y) >> 96) + 28719021644029726153956944680412240;
        p = p * x + (4385272521454847904659076985693276 << 96);

        // We leave p in 2**192 basis so we don't need to scale it back up for the division.
        int256 q = x - 2855989394907223263936484059900;
        q = ((q * x) >> 96) + 50020603652535783019961831881945;
        q = ((q * x) >> 96) - 533845033583426703283633433725380;
        q = ((q * x) >> 96) + 3604857256930695427073651918091429;
        q = ((q * x) >> 96) - 14423608567350463180887372962807573;
        q = ((q * x) >> 96) + 26449188498355588339934803723976023;

        /// @solidity memory-safe-assembly
        assembly {
            // Div in assembly because solidity adds a zero check despite the unchecked.
            // The q polynomial won't have zeros in the domain as all its roots are complex.
            // No scaling is necessary because p is already 2**96 too large.
            r := sdiv(p, q)
        }

        // r should be in the range (0.09, 0.25) * 2**96.

        // We now need to multiply r by:
        // * the scale factor s = ~6.031367120.
        // * the 2**k factor from the range reduction.
        // * the 1e18 / 2**96 factor for base conversion.
        // We do this all at once, with an intermediate result in 2**213
        // basis, so the final right shift is always by a positive amount.
        r = int256((uint256(r) * 3822833074963236453042738258902158003155416615667) >> uint256(195 - k));
    }
}

/// @dev Taken from https://github.com/Vectorized/solady/blob/cde0a5fb594da8655ba6bfcdc2e40a7c870c0cc0/src/utils/FixedPointMathLib.sol#L184
/// @dev Returns `ln(x)`, denominated in `WAD`.
function wln(int256 x) pure returns (int256 r) {
    unchecked {
        /// @solidity memory-safe-assembly
        assembly {
            if iszero(sgt(x, 0)) {
                mstore(0x00, 0x1615e638) // `LnWadUndefined()`.
                revert(0x1c, 0x04)
            }
        }

        // We want to convert x from 10**18 fixed point to 2**96 fixed point.
        // We do this by multiplying by 2**96 / 10**18. But since
        // ln(x * C) = ln(x) + ln(C), we can simply do nothing here
        // and add ln(2**96 / 10**18) at the end.

        // Compute k = log2(x) - 96, t = 159 - k = 255 - log2(x) = 255 ^ log2(x).
        int256 t;
        /// @solidity memory-safe-assembly
        assembly {
            t := shl(7, lt(0xffffffffffffffffffffffffffffffff, x))
            t := or(t, shl(6, lt(0xffffffffffffffff, shr(t, x))))
            t := or(t, shl(5, lt(0xffffffff, shr(t, x))))
            t := or(t, shl(4, lt(0xffff, shr(t, x))))
            t := or(t, shl(3, lt(0xff, shr(t, x))))
            // forgefmt: disable-next-item
            t := xor(
                t,
                byte(
                    and(
                        0x1f,
                        shr(shr(t, x), 0x8421084210842108cc6318c6db6d54be)
                    ),
                    0xf8f9f9faf9fdfafbf9fdfcfdfafbfcfef9fafdfafcfcfbfefafafcfbffffffff
                )
            )
        }

        // Reduce range of x to (1, 2) * 2**96
        // ln(2^k * x) = k * ln(2) + ln(x)
        x = int256(uint256(x << uint256(t)) >> 159);

        // Evaluate using a (8, 8)-term rational approximation.
        // p is made monic, we will multiply by a scale factor later.
        int256 p = x + 3273285459638523848632254066296;
        p = ((p * x) >> 96) + 24828157081833163892658089445524;
        p = ((p * x) >> 96) + 43456485725739037958740375743393;
        p = ((p * x) >> 96) - 11111509109440967052023855526967;
        p = ((p * x) >> 96) - 45023709667254063763336534515857;
        p = ((p * x) >> 96) - 14706773417378608786704636184526;
        p = p * x - (795164235651350426258249787498 << 96);

        // We leave p in 2**192 basis so we don't need to scale it back up for the division.
        // q is monic by convention.
        int256 q = x + 5573035233440673466300451813936;
        q = ((q * x) >> 96) + 71694874799317883764090561454958;
        q = ((q * x) >> 96) + 283447036172924575727196451306956;
        q = ((q * x) >> 96) + 401686690394027663651624208769553;
        q = ((q * x) >> 96) + 204048457590392012362485061816622;
        q = ((q * x) >> 96) + 31853899698501571402653359427138;
        q = ((q * x) >> 96) + 909429971244387300277376558375;
        /// @solidity memory-safe-assembly
        assembly {
            // Div in assembly because solidity adds a zero check despite the unchecked.
            // The q polynomial is known not to have zeros in the domain.
            // No scaling required because p is already 2**96 too large.
            r := sdiv(p, q)
        }

        // r is in the range (0, 0.125) * 2**96

        // Finalization, we need to:
        // * multiply by the scale factor s = 5.549…
        // * add ln(2**96 / 10**18)
        // * add k * ln(2)
        // * multiply by 10**18 / 2**96 = 5**18 >> 78

        // mul s * 5e18 * 2**96, base is now 5**18 * 2**192
        r *= 1677202110996718588342820967067443963516166;
        // add ln(2) * k * 5e18 * 2**192
        r += 16597577552685614221487285958193947469193820559219878177908093499208371 * (159 - t);
        // add ln(2**96 / 10**18) * 5e18 * 2**192
        r += 600920179829731861736702779321621459595472258049074101567377883020018308;
        // base conversion: mul 2**18 / 2**192
        r >>= 174;
    }
}

/// @dev Returns the square root of `x`, rounded down.
function sqrt(uint256 x) pure returns (uint256 z) {
    /// @solidity memory-safe-assembly
    assembly {
        // `floor(sqrt(2**15)) = 181`. `sqrt(2**15) - 181 = 2.84`.
        z := 181 // The "correct" value is 1, but this saves a multiplication later.

        // This segment is to get a reasonable initial estimate for the Babylonian method. With a bad
        // start, the correct # of bits increases ~linearly each iteration instead of ~quadratically.

        // Let `y = x / 2**r`. We check `y >= 2**(k + 8)`
        // but shift right by `k` bits to ensure that if `x >= 256`, then `y >= 256`.
        let r := shl(7, lt(0xffffffffffffffffffffffffffffffffff, x))
        r := or(r, shl(6, lt(0xffffffffffffffffff, shr(r, x))))
        r := or(r, shl(5, lt(0xffffffffff, shr(r, x))))
        r := or(r, shl(4, lt(0xffffff, shr(r, x))))
        z := shl(shr(1, r), z)

        // Goal was to get `z*z*y` within a small factor of `x`. More iterations could
        // get y in a tighter range. Currently, we will have y in `[256, 256*(2**16))`.
        // We ensured `y >= 256` so that the relative difference between `y` and `y+1` is small.
        // That's not possible if `x < 256` but we can just verify those cases exhaustively.

        // Now, `z*z*y <= x < z*z*(y+1)`, and `y <= 2**(16+8)`, and either `y >= 256`, or `x < 256`.
        // Correctness can be checked exhaustively for `x < 256`, so we assume `y >= 256`.
        // Then `z*sqrt(y)` is within `sqrt(257)/sqrt(256)` of `sqrt(x)`, or about 20bps.

        // For `s` in the range `[1/256, 256]`, the estimate `f(s) = (181/1024) * (s+1)`
        // is in the range `(1/2.84 * sqrt(s), 2.84 * sqrt(s))`,
        // with largest error when `s = 1` and when `s = 256` or `1/256`.

        // Since `y` is in `[256, 256*(2**16))`, let `a = y/65536`, so that `a` is in `[1/256, 256)`.
        // Then we can estimate `sqrt(y)` using
        // `sqrt(65536) * 181/1024 * (a + 1) = 181/4 * (y + 65536)/65536 = 181 * (y + 65536)/2**18`.

        // There is no overflow risk here since `y < 2**136` after the first branch above.
        z := shr(18, mul(z, add(shr(r, x), 65536))) // A `mul()` is saved from starting `z` at 181.

        // Given the worst case multiplicative error of 2.84 above, 7 iterations should be enough.
        z := shr(1, add(z, div(x, z)))
        z := shr(1, add(z, div(x, z)))
        z := shr(1, add(z, div(x, z)))
        z := shr(1, add(z, div(x, z)))
        z := shr(1, add(z, div(x, z)))
        z := shr(1, add(z, div(x, z)))
        z := shr(1, add(z, div(x, z)))

        // If `x+1` is a perfect square, the Babylonian method cycles between
        // `floor(sqrt(x))` and `ceil(sqrt(x))`. This statement ensures we return floor.
        // See: https://en.wikipedia.org/wiki/Integer_square_root#Using_only_integer_division
        z := sub(z, lt(div(x, z), z))
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.27;

contract Errors {
    /// @notice Error thrown when an address is the zero address.
    error Address0();

    /// @notice Error thrown when an amount is zero.
    error Amount0();

    /// @notice Error thrown when an operation is attempted after the specified deadline.
    error Expired();

    /// @notice Error thrown when one value is greater than another.
    /// @param a The first value that is greater than the second value.
    /// @param b The second value which is smaller or equal to the first value.
    error GreaterThan(uint256 a, uint256 b);

    /**
     * @notice Modifier to prevent operations with a zero amount.
     * @dev Throws an `Amount0` error if the provided amount is zero.
     * @param a The amount to be checked.
     */
    modifier notAmount0(uint256 a) {
        require(a != 0, Amount0());
        _;
    }

    /**
     * @notice Modifier to ensure a function is called before a specified deadline.
     * @dev Throws an `Expired` error if the current block timestamp exceeds the provided deadline.
     * @param _deadline The deadline timestamp by which the function must be called.
     */
    modifier notExpired(uint32 _deadline) {
        require(block.timestamp <= _deadline, Expired());
        _;
    }

    /**
     * @notice Modifier to prevent operations with the zero address.
     * @dev Throws an `Address0` error if the provided address is the zero address.
     * @param a The address to be checked.
     */
    modifier notAddress0(address a) {
        require(a != address(0), Address0());
        _;
    }

    /**
     * @notice Modifier to ensure the first value is not greater than the second value.
     * @dev Throws a `GreaterThan` error if `b` is smaller than `a`.
     * @param a The first value to be compared.
     * @param b The second value to be compared.
     */
    modifier notGt(uint256 a, uint256 b) {
        require(b >= a, GreaterThan(a, b));
        _;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.27;

// Distribution addresses
address constant GENESIS_WALLET = 0xf049064250e164a6C91461ebeC152Ee06e65B821;
address constant FEES_WALLET = 0x6BeaF26820deF471d0370C423815DB58cD89Ac41;
address constant VOLT_TREASURY = 0xb638BFB7BC3B8398bee48569CFDAA6B3Bb004224;
address constant OWNER = 0x5da227386E0FD73329FE3923394913ecA3A624f7;

address constant VOLT_LIQUIDTY_BONDING = 0x45C03d66229d01dF2645E813222b16C8B8b86894;
address constant LOTUS_LIQUIDITY_BONDING = 0x6933E7F85F0c1ae5BFE375A27Aa79be94666b8b2;

// Percentages in WAD
uint64 constant INCENTIVE_FEE = 0.015e18; //1.5%

uint64 constant TO_DRAGON_X = 0.04e18; // 4%
uint64 constant TO_VOLT_LIQUIDITY_BONDING = 0.04e18; // 4%
uint64 constant TO_LOTUS_LIQUIDTY_BONDING = 0.08e18; // 8%
uint64 constant TO_LOTUS_BUY_AND_BURN = 0.48e18; // 48%
uint64 constant TO_REWARD_POOLS = 0.28e18; // 28%
uint64 constant TO_GENESIS = 0.08e18; // 8%

uint256 constant FOR_VOLT_TREASURY = 0.168e18; // 16.7%

// Reward pools distribution
uint64 constant DAY8POOL_DIST = 0.35e18; // 35%
uint64 constant DAY48POOL_DIST = 0.35e18; // 35%
uint64 constant DAY88POOL_DIST = 0.25e18; // 25%
uint64 constant LOTUS_BLOOM_POOL = 0.05e18; // 5%

// LRANK BONUSES
uint64 constant MINING_LRANK_30DAYS = 0.03e18; // 3%
uint64 constant MINING_LRANK_60DAYS = 0.08e18; // 8%
uint64 constant MINING_LRANK_120DAYS = 0.13e18; // 13%
uint64 constant MINING_LRANK_180DAYS = 0.18e18; // 18%

uint64 constant STAKING_LRANK_90DAYS = 0.05e18; // 5%
uint64 constant STAKING_LRANK_365DAYS = 0.1e18; // 10%
uint64 constant STAKING_LRANK_730DAYS = 0.2e18; // 20%
uint64 constant STAKING_LRANK_1480DAYS = 0.3e18; // 30%

// PRECISION
uint64 constant WAD = 1e18;

// INTERVALS
uint16 constant INTERVAL_TIME = 8 minutes;
uint8 constant INTERVALS_PER_DAY = uint8(24 hours / INTERVAL_TIME);

//UNIV3
uint24 constant POOL_FEE = 10_000; //1%
int16 constant TICK_SPACING = 200; // Uniswap's tick spacing for 1% pools is 200

//LIQUIDITY CONFIG

///@dev The initial titan x amount needed to create liquidity pool

uint96 constant INITIAL_TITAN_X_FOR_LIQ = 5_000_000_000e18;

///@dev The intial LOTUS that pairs with the VOLT received from the swap
uint96 constant INITIAL_LOTUS_FOR_LP = 1_666_667e18;

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @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 value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

    /**
     * @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens 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 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` 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 value) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.20;

/**
 * @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.
 *
 * ==== Security Considerations
 *
 * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature
 * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be
 * considered as an intention to spend the allowance in any specific way. The second is that because permits have
 * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should
 * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be
 * generally recommended is:
 *
 * ```solidity
 * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
 *     try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
 *     doThing(..., value);
 * }
 *
 * function doThing(..., uint256 value) public {
 *     token.safeTransferFrom(msg.sender, address(this), value);
 *     ...
 * }
 * ```
 *
 * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of
 * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also
 * {SafeERC20-safeTransferFrom}).
 *
 * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so
 * contracts should have entry points that don't rely on permit.
 */
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].
     *
     * CAUTION: See Security Considerations above.
     */
    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 v5.0.0) (utils/Address.sol)

pragma solidity ^0.8.20;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev The ETH balance of the account is not enough to perform the operation.
     */
    error AddressInsufficientBalance(address account);

    /**
     * @dev There's no code at `target` (it is not a contract).
     */
    error AddressEmptyCode(address target);

    /**
     * @dev A call to an address target failed. The target may have reverted.
     */
    error FailedInnerCall();

    /**
     * @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/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        if (address(this).balance < amount) {
            revert AddressInsufficientBalance(address(this));
        }

        (bool success, ) = recipient.call{value: amount}("");
        if (!success) {
            revert FailedInnerCall();
        }
    }

    /**
     * @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 or custom error, it is bubbled
     * up by this function (like regular Solidity function calls). However, if
     * the call reverted with no returned reason, this function reverts with a
     * {FailedInnerCall} error.
     *
     * 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.
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0);
    }

    /**
     * @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`.
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        if (address(this).balance < value) {
            revert AddressInsufficientBalance(address(this));
        }
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

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

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target
     * was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an
     * unsuccessful call.
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata
    ) internal view returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            // only check if target is a contract if the call was successful and the return data is empty
            // otherwise we already know that it was a contract
            if (returndata.length == 0 && target.code.length == 0) {
                revert AddressEmptyCode(target);
            }
            return returndata;
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the
     * revert reason or with a default {FailedInnerCall} error.
     */
    function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            return returndata;
        }
    }

    /**
     * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}.
     */
    function _revert(bytes memory returndata) 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 FailedInnerCall();
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "./IERC20.sol";
import {IERC20Metadata} from "./extensions/IERC20Metadata.sol";
import {Context} from "../../utils/Context.sol";
import {IERC20Errors} from "../../interfaces/draft-IERC6093.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}.
 *
 * 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.
 */
abstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {
    mapping(address account => uint256) private _balances;

    mapping(address account => mapping(address spender => 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 returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual 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 returns (uint8) {
        return 18;
    }

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

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual 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 `value`.
     */
    function transfer(address to, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, value);
        return true;
    }

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

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `value` 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 value) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, value);
        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 `value`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `value`.
     */
    function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, value);
        _transfer(from, to, value);
        return true;
    }

    /**
     * @dev Moves a `value` 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.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _transfer(address from, address to, uint256 value) internal {
        if (from == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        if (to == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(from, to, value);
    }

    /**
     * @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`
     * (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding
     * this function.
     *
     * Emits a {Transfer} event.
     */
    function _update(address from, address to, uint256 value) internal virtual {
        if (from == address(0)) {
            // Overflow check required: The rest of the code assumes that totalSupply never overflows
            _totalSupply += value;
        } else {
            uint256 fromBalance = _balances[from];
            if (fromBalance < value) {
                revert ERC20InsufficientBalance(from, fromBalance, value);
            }
            unchecked {
                // Overflow not possible: value <= fromBalance <= totalSupply.
                _balances[from] = fromBalance - value;
            }
        }

        if (to == address(0)) {
            unchecked {
                // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.
                _totalSupply -= value;
            }
        } else {
            unchecked {
                // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.
                _balances[to] += value;
            }
        }

        emit Transfer(from, to, value);
    }

    /**
     * @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).
     * Relies on the `_update` mechanism
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _mint(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(address(0), account, value);
    }

    /**
     * @dev Destroys a `value` amount of tokens from `account`, lowering the total supply.
     * Relies on the `_update` mechanism.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead
     */
    function _burn(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        _update(account, address(0), value);
    }

    /**
     * @dev Sets `value` 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.
     *
     * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
     */
    function _approve(address owner, address spender, uint256 value) internal {
        _approve(owner, spender, value, true);
    }

    /**
     * @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.
     *
     * By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by
     * `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any
     * `Approval` event during `transferFrom` operations.
     *
     * Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to
     * true using the following override:
     * ```
     * function _approve(address owner, address spender, uint256 value, bool) internal virtual override {
     *     super._approve(owner, spender, value, true);
     * }
     * ```
     *
     * Requirements are the same as {_approve}.
     */
    function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {
        if (owner == address(0)) {
            revert ERC20InvalidApprover(address(0));
        }
        if (spender == address(0)) {
            revert ERC20InvalidSpender(address(0));
        }
        _allowances[owner][spender] = value;
        if (emitEvent) {
            emit Approval(owner, spender, value);
        }
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `value`.
     *
     * Does not update the allowance value in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Does not emit an {Approval} event.
     */
    function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            if (currentAllowance < value) {
                revert ERC20InsufficientAllowance(spender, currentAllowance, value);
            }
            unchecked {
                _approve(owner, spender, currentAllowance - value, false);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @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;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/IERC721.sol)

pragma solidity ^0.8.20;

import {IERC165} from "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon
     *   a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or
     *   {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon
     *   a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
     * understand this adds an external call which potentially creates a reentrancy vulnerability.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the address zero.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool approved) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.20;

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721Receiver {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be
     * reverted.
     *
     * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/extensions/IERC721Metadata.sol)

pragma solidity ^0.8.20;

import {IERC721} from "../IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Metadata is IERC721 {
    /**
     * @dev Returns the token collection name.
     */
    function name() external view returns (string memory);

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

    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    function tokenURI(uint256 tokenId) external view returns (string memory);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Strings.sol)

pragma solidity ^0.8.20;

import {Math} from "./math/Math.sol";
import {SignedMath} from "./math/SignedMath.sol";

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant HEX_DIGITS = "0123456789abcdef";
    uint8 private constant ADDRESS_LENGTH = 20;

    /**
     * @dev The `value` string doesn't fit in the specified `length`.
     */
    error StringsInsufficientHexLength(uint256 value, uint256 length);

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        unchecked {
            uint256 length = Math.log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            /// @solidity memory-safe-assembly
            assembly {
                ptr := add(buffer, add(32, length))
            }
            while (true) {
                ptr--;
                /// @solidity memory-safe-assembly
                assembly {
                    mstore8(ptr, byte(mod(value, 10), HEX_DIGITS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }

    /**
     * @dev Converts a `int256` to its ASCII `string` decimal representation.
     */
    function toStringSigned(int256 value) internal pure returns (string memory) {
        return string.concat(value < 0 ? "-" : "", toString(SignedMath.abs(value)));
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        unchecked {
            return toHexString(value, Math.log256(value) + 1);
        }
    }

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

    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal
     * representation.
     */
    function toHexString(address addr) internal pure returns (string memory) {
        return toHexString(uint256(uint160(addr)), ADDRESS_LENGTH);
    }

    /**
     * @dev Returns true if the two strings are equal.
     */
    function equal(string memory a, string memory b) internal pure returns (bool) {
        return bytes(a).length == bytes(b).length && keccak256(bytes(a)) == keccak256(bytes(b));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/ERC165.sol)

pragma solidity ^0.8.20;

import {IERC165} from "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC6093.sol)
pragma solidity ^0.8.20;

/**
 * @dev Standard ERC20 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC20 tokens.
 */
interface IERC20Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC20InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC20InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     * @param allowance Amount of tokens a `spender` is allowed to operate with.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC20InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `spender` to be approved. Used in approvals.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC20InvalidSpender(address spender);
}

/**
 * @dev Standard ERC721 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC721 tokens.
 */
interface IERC721Errors {
    /**
     * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in EIP-20.
     * Used in balance queries.
     * @param owner Address of the current owner of a token.
     */
    error ERC721InvalidOwner(address owner);

    /**
     * @dev Indicates a `tokenId` whose `owner` is the zero address.
     * @param tokenId Identifier number of a token.
     */
    error ERC721NonexistentToken(uint256 tokenId);

    /**
     * @dev Indicates an error related to the ownership over a particular token. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param tokenId Identifier number of a token.
     * @param owner Address of the current owner of a token.
     */
    error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC721InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC721InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param tokenId Identifier number of a token.
     */
    error ERC721InsufficientApproval(address operator, uint256 tokenId);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC721InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC721InvalidOperator(address operator);
}

/**
 * @dev Standard ERC1155 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC1155 tokens.
 */
interface IERC1155Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     * @param tokenId Identifier number of a token.
     */
    error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC1155InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC1155InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param owner Address of the current owner of a token.
     */
    error ERC1155MissingApprovalForAll(address operator, address owner);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC1155InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC1155InvalidOperator(address operator);

    /**
     * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation.
     * Used in batch transfers.
     * @param idsLength Length of the array of token identifiers
     * @param valuesLength Length of the array of token amounts
     */
    error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {Context} from "../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.
 *
 * The initial owner is set to the address provided by the deployer. 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;

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

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

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @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 {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @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 {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _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: UNLICENSED
pragma solidity 0.8.27;

/* == OZ == */
import {ERC20Burnable} from "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol";
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {Ownable2Step, Ownable} from "@openzeppelin/contracts/access/Ownable2Step.sol";

/* == CONST == */
import "@const/Constants.sol";

/* == SYSTEM == */
import {Lotus} from "@core/Lotus.sol";
import {LotusBuyAndBurn} from "@core/BuyAndBurn.sol";
import {LotusStaking} from "@core/Staking.sol";

/* == ACTIONS == */
import {SwapActions, SwapActionParams} from "@actions/SwapActions.sol";

/* == UTILS == */
import {wmul, wpow, sub, min} from "@utils/Math.sol";
import {Time} from "@utils/Time.sol";
import {Errors} from "@utils/Errors.sol";

/* == UNIV3 == */
import {TickMath} from "@uniswap/v3-core/contracts/libraries/TickMath.sol";
import {INonfungiblePositionManager} from "@uniswap/v3-periphery/contracts/interfaces/INonfungiblePositionManager.sol";

/* == INTERFACES == */
import {IDragonX} from "@interfaces/IDragonX.sol";

struct MiningStats {
    uint128 initialMinerCost; // The initial cost for users to create a miner (this goes up daily)
    uint64 minerCostDailyIncrease; // The % that the initial cost for users increases daily
    uint128 initialLotusMintable; // The initial lotus mintable per day per max power (this goes down daily)
    uint64 lotusMintableDailyDecrease; // The % that the initial lotus mintable per day decreases daily
}

enum MinerStatus {
    CLAIMED, // Status for when the user claims his miner
    ACTIVE // Status for when the miner is still active

}

/**
 * @title LotusMining
 * @notice This contract allows users to perform virtual mining of LOTUS tokens using TITANX tokens.
 * @dev The contract also manages the lifecycle of miners and their rewards over time.
 */
contract LotusMining is SwapActions {
    using SafeERC20 for ERC20Burnable;

    struct Miner {
        uint32 startTs; // The timestamp when the mining starts
        uint32 maturityTs; // The timestamp when the mining matures and can be claimed
        uint8 numOfDays; // The number of days the mining lasts, cannot overflow as max duration is 180 days
        uint128 mintable; // The amount of LOTUS tokens that can be mined
        uint128 cost; // The cost of mining in TITANX tokens
        MinerStatus status; // The status of the miner (ACTIVE or CLAIMED)
    }

    struct LP {
        bool hasLP; // Whether liquidity has been provided
        bool isLotusToken0; // If LOTUS is token 0
        uint240 tokenId; // The token ID of the LP
    }

    /* == CONSTANTS == */
    uint32 constant MIN_DURATION = 1 days;
    uint32 constant MAX_DURATION = 180 days;

    /* == IMMUTABLE == */

    uint32 public immutable startTimestamp; // Timestamp for the start of the mining period
    address public immutable v3PositionManager;

    IDragonX immutable dragonX;
    ERC20Burnable public immutable titanX;
    ERC20Burnable public immutable volt;
    Lotus public immutable lotus;

    /* == STATE == */

    uint256 public lpSlippage;

    LP lp; // Liquidity provider state
    MiningStats public stats; // Mining statistics for cost and mintable LOTUS

    mapping(address user => uint64 minerId) public userMiners; // User's latest miner ID
    mapping(address user => mapping(uint64 id => Miner)) public miners; // User's miner details by miner ID

    /* == ERRORS == */

    error LotusMining__InvalidDuration(); // Error for invalid mining duration
    error LotusMining__MinerNotMatureYet(); // Error when trying to claim an immature miner
    error LotusMining__MinerAlreadyClaimed(); // Error when trying to claim an already claimed miner
    error LotusMining__NotStartedYet(); // Error when trying to interact with the contract before the start date
    error LotusMining__LiquidityAlreadyAdded(); // Error when trying to add liquidity when it has already been added
    error LotusMining__NotEnoughTitanXForLiquidity(); // Error when trying to add liquidity when there is not enough amount for it
    error LotusMining__InvalidLadderParams(); // Error when trying to create a ladder with incorrect params
    error LatusMining__MaxLadderEndExceeded(); // Error when trying create a ladder than ends later than the MAX_LADDER_END_TIME

    /* == EVENTS == */
    /**
     * @notice Emitted when a miner is created.
     * @param _user The address of the user who created the miner.
     * @param _power The mining power specified.
     * @param _cost The cost of the miner.
     * @param _id The ID of the created miner.
     */
    event MinerCreated(
        address indexed _user,
        uint256 indexed _power,
        uint256 indexed _cost,
        uint32 startTs,
        uint32 maturityTs,
        uint64 _id
    );

    /**
     * @notice Emitted when a miner is claimed.
     * @param _user The address of the user claiming the miner.
     * @param _id The ID of the claimed miner.
     * @param lotusMined The amount of LOTUS tokens mined.
     * @param lRankBonus The L-Rank bonus amount
     */
    event MinerClaimed(address indexed _user, uint256 indexed _id, uint256 indexed lotusMined, uint256 lRankBonus);

    /**
     * @notice Emitted when distribution happens
     * @param toBuyAndBurn TitanX distributed ot BuyAndBurn
     * @param toGenesis  TitanX distributed to genesis
     */
    event Distributed(uint256 indexed toBuyAndBurn, uint256 indexed toGenesis);

    /* == CONSTRUCTOR == */

    /**
     * @notice Constructor to initialize the LotusMining contract.
     * @param _params The swap action contract params
     * @param _miningStats The mining stats params
     * @param _startTimestamp The timestamp when mining starts.
     * @param _v3PositionManager The uniswapV3 position manager
     */
    constructor(
        uint32 _startTimestamp,
        address _v3PositionManager,
        address _lotus,
        address _titanX,
        address _volt,
        address _dragonX,
        SwapActionParams memory _params,
        MiningStats memory _miningStats
    ) SwapActions(_params) {
        lotus = Lotus(_lotus);
        titanX = ERC20Burnable(_titanX);
        volt = ERC20Burnable(_volt);
        dragonX = IDragonX(_dragonX);

        startTimestamp = _startTimestamp;
        v3PositionManager = _v3PositionManager;
        stats = _miningStats;
        lpSlippage = WAD - 0.2e18;
    }

    /* == EXTERNAL == */

    function changeLpSlippage(uint256 _newSlippage) external onlySlippageAdminOrOwner {
        lpSlippage = _newSlippage;
    }

    /**
     * @notice Starts the mining process for a specified duration and power.
     * @param _duration The duration of the mining.
     * @param _power The mining power specified.
     */
    function startMining(uint32 _duration, uint256 _power) external {
        _mine(Time.blockTs(), _duration, _power);
    }

    /**
     * @notice Starts batch mining for a specified duration and power multiple times.
     * @param _duration The duration of the mining.
     * @param _power The mining power specified.
     * @param _count The number of miners to create.
     */
    function startMiningBatch(uint32 _duration, uint256 _power, uint256 _count) public {
        _count = min(100, _count);

        for (uint64 i; i < _count; ++i) {
            _mine(uint32(block.timestamp), _duration, _power);
        }
    }

    /**
     * @notice Initiates a mining ladder with a specified number of miners and intervals.
     * @dev This function schedules miners to start mining at different intervals within a ladder.
     *      It checks the validity of the ladder parameters and ensures that mining begins as expected.
     *      The function limits that the mining ladder ends at maximum of 88 days since start
     * @param _minersPerInterval The number of miners assigned per interval, capped at 100.
     * @param _power The amount of mining power allocated to each miner.
     * @param _ladderStart The start time (in terms of intervals) for the mining ladder.
     * @param _ladderIntervals The number of intervals between each mining operation.
     * @param _ladderEnd The end time (in terms of intervals) for the mining ladder.
     */
    function startMiningLadder(
        uint256 _minersPerInterval,
        uint256 _power,
        uint32 _ladderStart,
        uint32 _ladderIntervals,
        uint32 _ladderEnd
    ) external {
        require(_ladderStart < _ladderEnd, LotusMining__InvalidLadderParams());
        require(_ladderEnd - _ladderStart <= MAX_DURATION, LatusMining__MaxLadderEndExceeded());

        for (; _ladderStart <= _ladderEnd; _ladderStart += _ladderIntervals) {
            uint64 _count = uint64(min(100, _minersPerInterval));

            for (uint64 i; i < _count; ++i) {
                _mine(_ladderStart, _ladderIntervals, _power);
            }
        }
    }

    /**
     * @notice Claims a miner that has matured.
     * @param _id The ID of the miner to claim.
     */
    function claimMiner(uint64 _id) external returns (uint256 totalMinedAmount) {
        totalMinedAmount = _claim(msg.sender, _id);
    }

    /**
     * @notice Claims multiple miners that have matured.
     * @param _ids The IDs of the miners to claim.
     */
    function batchClaim(uint64[] calldata _ids) external returns (uint256 totalMinedAmount) {
        for (uint64 i; i < _ids.length; ++i) {
            totalMinedAmount += _claim(msg.sender, _ids[i]);
        }
    }

    /* == PUBLIC == */

    /**
     * @notice Gets the current miner cost based on the specified power.
     * @param _power The mining power specified.
     * @return cost The cost of the miner in TITANX tokens.
     */
    function getCurrentMinerCostByPower(uint256 _power, uint32 timeOfCreation) public view returns (uint128 cost) {
        cost = uint128(wmul(minerCost(timeOfCreation), _power));
    }

    /**
     * @notice Gets the current base cost for a miner.
     * @notice Increases daily
     * @return cost The current cost of the miner in TITANX tokens.
     */
    function minerCost(uint32 timeOfCreation) public view returns (uint128 cost) {
        MiningStats memory _stats = stats;
        uint32 currentDay = Time.dayGap(startTimestamp, timeOfCreation);

        cost = uint128(wmul(_stats.initialMinerCost, wpow(WAD + _stats.minerCostDailyIncrease, currentDay, WAD)));
    }

    /**
     * @notice Gets the current LOTUS mintable based on the specified power.
     * @param _power The mining power specified.
     * @return mintable The amount of LOTUS tokens that can be minted.
     */
    function getCurrentLotusMintableByPower(uint256 _power, uint32 timeOfCreation)
        public
        view
        returns (uint128 mintable)
    {
        mintable = uint128(wmul(currentLotusMintable(timeOfCreation), _power));
    }

    /**
     * @notice Gets the current base LOTUS mintable.
     * @notice Decreases daily
     * @return mintable The current LOTUS tokens that can be minted.
     */
    function currentLotusMintable(uint32 timeOfCreation) public view returns (uint128 mintable) {
        MiningStats memory _stats = stats;
        uint32 currentDay = Time.dayGap(startTimestamp, timeOfCreation);

        mintable =
            uint128(wmul(_stats.initialLotusMintable, wpow(WAD - _stats.lotusMintableDailyDecrease, currentDay, WAD)));
    }

    /**
     * @dev Internal function to handle the mining process.
     * @param _startOfMining The timestamp when the mining starts.
     * @param _duration The duration of the mining.
     * @param _power The mining power specified.
     */
    function _mine(uint32 _startOfMining, uint32 _duration, uint256 _power)
        internal
        notAmount0(_power)
        notGt(Time.blockTs(), _startOfMining)
        notGt(_power, WAD)
    {
        require(Time.blockTs() >= startTimestamp, LotusMining__NotStartedYet());
        require(
            MIN_DURATION <= _duration && _duration <= MAX_DURATION && _duration % 24 hours == 0,
            LotusMining__InvalidDuration()
        );

        uint128 cost = getCurrentMinerCostByPower(_power, _startOfMining);
        uint64 _lastId = ++userMiners[msg.sender];

        {
            Miner memory _currentMiner = Miner({
                cost: cost,
                mintable: getCurrentLotusMintableByPower(_power, _startOfMining),
                startTs: _startOfMining,
                maturityTs: _startOfMining + _duration,
                numOfDays: uint8(_duration / 1 days), // Cannot overflow, max duration is 180 days
                status: MinerStatus.ACTIVE
            });

            miners[msg.sender][_lastId] = _currentMiner;
        }
        emit MinerCreated(msg.sender, _power, cost, _startOfMining, _startOfMining + _duration, _lastId);

        titanX.safeTransferFrom(msg.sender, address(this), cost);

        _distribute(cost);
    }

    /**
     * @dev Internal function to claim a matured miner.
     * @param _user The address of the user claiming the miner.
     * @param _id The ID of the miner to claim.
     */
    function _claim(address _user, uint64 _id) internal returns (uint256 totalAmountMined) {
        Miner storage _miner = miners[_user][_id];

        require(_miner.status == MinerStatus.ACTIVE, LotusMining__MinerAlreadyClaimed());
        require(Time.blockTs() >= _miner.maturityTs, LotusMining__MinerNotMatureYet());

        _miner.status = MinerStatus.CLAIMED;

        uint256 minedAmount = _miner.mintable * _miner.numOfDays;

        uint256 lRankBonus = calculateLRankBonus(minedAmount, _miner.numOfDays);

        totalAmountMined = minedAmount + lRankBonus;

        emit MinerClaimed(_user, _id, minedAmount, lRankBonus);

        lotus.emitLotus(_user, totalAmountMined);
    }

    /**
     * @dev Internal function to calculate the LRank bonus based on the mining duration.
     * @param _amountMined The amount of LOTUS tokens mined.
     * @param _numOfDays The number of days the miner mined for.
     * @return lRankBonus The LRank bonus added to the mined amount.
     */
    function calculateLRankBonus(uint256 _amountMined, uint8 _numOfDays) public pure returns (uint256 lRankBonus) {
        if (_numOfDays <= 30) {
            lRankBonus = wmul(_amountMined, MINING_LRANK_30DAYS);
        } else if (_numOfDays <= 60) {
            lRankBonus = wmul(_amountMined, MINING_LRANK_60DAYS);
        } else if (_numOfDays <= 120) {
            lRankBonus = wmul(_amountMined, MINING_LRANK_120DAYS);
        } else {
            lRankBonus = wmul(_amountMined, MINING_LRANK_180DAYS);
        }
    }

    /**
     * @dev Internal function to distribute the TITANX tokens if liquidity is provided.
     * @param _amount The amount of TITANX tokens to distribute.
     */
    function _distribute(uint256 _amount) internal {
        uint256 titanXBalance = titanX.balanceOf(address(this));
        // If there is no added liquidity but the balance exceeds the initial liquidity, distribute the difference
        if (!lp.hasLP) {
            if (titanXBalance <= INITIAL_TITAN_X_FOR_LIQ) return;

            _amount = uint192(titanXBalance - INITIAL_TITAN_X_FOR_LIQ);
        }

        uint256 _toDragonX = wmul(_amount, TO_DRAGON_X);
        uint256 _toVoltLiquidtyBonding = wmul(_amount, TO_VOLT_LIQUIDITY_BONDING);
        uint256 _toLotusLiquidityBonding = wmul(_amount, TO_LOTUS_LIQUIDTY_BONDING);
        uint256 _toStaking = wmul(_amount, TO_REWARD_POOLS);
        uint256 _toLotusBnB = wmul(_amount, TO_LOTUS_BUY_AND_BURN);
        uint256 _toGenesis = wmul(_amount, TO_GENESIS);

        LotusStaking staking = lotus.staking();
        LotusBuyAndBurn buyAndBurn = lotus.buyAndBurn();

        titanX.transfer(address(dragonX), _toDragonX);
        dragonX.updateVault();

        titanX.transfer(VOLT_LIQUIDTY_BONDING, _toVoltLiquidtyBonding);
        titanX.transfer(LOTUS_LIQUIDITY_BONDING, _toLotusLiquidityBonding);

        titanX.approve(address(buyAndBurn), _toLotusBnB);
        buyAndBurn.distributeTitanXForBurning(_toLotusBnB);

        titanX.approve(address(staking), _toStaking);
        staking.distribute(_toStaking);

        titanX.safeTransfer(GENESIS_WALLET, _toGenesis);
    }

    ///////////////////////
    ////// LIQUIDITY //////
    ///////////////////////

    /**
     * @notice Sends the fees acquired from the UniswapV3 position
     * @return amount0 The amount of token0 collected
     * @return amount1 The amount of token1 collected
     */
    function collectFees() external returns (uint256 amount0, uint256 amount1) {
        LP memory _lp = lp;

        INonfungiblePositionManager.CollectParams memory params = INonfungiblePositionManager.CollectParams({
            tokenId: _lp.tokenId,
            recipient: address(this),
            amount0Max: type(uint128).max,
            amount1Max: type(uint128).max
        });

        (amount0, amount1) = INonfungiblePositionManager(v3PositionManager).collect(params);

        (uint256 lotusAmount, uint256 voltAmount) = _lp.isLotusToken0 ? (amount0, amount1) : (amount1, amount0);

        volt.transfer(FEES_WALLET, voltAmount);
        lotus.transfer(FEES_WALLET, lotusAmount);
    }

    /**
     * @notice Adds liquidity to VOLT/LOTUS pool
     * @param _deadline The deadline for the liquidity addition
     */
    function addLiquidityToVoltLotusPool(uint32 _deadline) external onlyOwner notExpired(_deadline) {
        require(!lp.hasLP, LotusMining__LiquidityAlreadyAdded());

        require(titanX.balanceOf(address(this)) >= INITIAL_TITAN_X_FOR_LIQ, LotusMining__NotEnoughTitanXForLiquidity());

        lotus.emitLotus(address(this), INITIAL_LOTUS_FOR_LP);

        uint256 _voltAmount = swapExactInput(address(titanX), address(volt), INITIAL_TITAN_X_FOR_LIQ, 0, _deadline);

        (uint256 amount0, uint256 amount1, uint256 amount0Min, uint256 amount1Min, address token0, address token1) =
            _sortAmounts(INITIAL_LOTUS_FOR_LP, _voltAmount);

        ERC20Burnable(token0).approve(v3PositionManager, amount0);
        ERC20Burnable(token1).approve(v3PositionManager, amount1);

        // wake-disable-next-line
        INonfungiblePositionManager.MintParams memory params = INonfungiblePositionManager.MintParams({
            token0: token0,
            token1: token1,
            fee: POOL_FEE,
            tickLower: (TickMath.MIN_TICK / TICK_SPACING) * TICK_SPACING,
            tickUpper: (TickMath.MAX_TICK / TICK_SPACING) * TICK_SPACING,
            amount0Desired: amount0,
            amount1Desired: amount1,
            amount0Min: amount0Min,
            amount1Min: amount1Min,
            recipient: address(this),
            deadline: _deadline
        });

        // wake-disable-next-line
        (uint256 tokenId,,,) = INonfungiblePositionManager(v3PositionManager).mint(params);

        lp = LP({hasLP: true, tokenId: uint240(tokenId), isLotusToken0: token0 == address(lotus)});

        _transferOwnership(address(0));
    }

    ///@notice Sorts tokens and amounts for adding liquidity
    function _sortAmounts(uint256 _lotusAmount, uint256 _voltAmount)
        internal
        view
        returns (
            uint256 amount0,
            uint256 amount1,
            uint256 amount0Min,
            uint256 amount1Min,
            address token0,
            address token1
        )
    {
        address _volt = address(volt);
        address _lotus = address(lotus);

        (token0, token1) = _volt < _lotus ? (_volt, _lotus) : (_lotus, _volt);
        (amount0, amount1) = token0 == _volt ? (_voltAmount, _lotusAmount) : (_lotusAmount, _voltAmount);

        (amount0Min, amount1Min) = (wmul(amount0, lpSlippage), wmul(amount1, lpSlippage));
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.27;

/* === OZ === */
import {ERC20Burnable} from "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol";
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";

/* == CORE == */
import {Lotus} from "@core/Lotus.sol";

/* === CONST === */
import "@const/Constants.sol";

/* == ACTIONS == */
import {SwapActions, SwapActionParams} from "@actions/SwapActions.sol";

/* == UTILS == */
import {wmul, min} from "@utils/Math.sol";
import {Time} from "@utils/Time.sol";

/**
 * @title LotusBuyAndBurn
 * @notice This contract handles the buying and burning of Volt tokens using Uniswap V3 pools.
 */
contract LotusBuyAndBurn is SwapActions {
    using SafeERC20 for *;

    //=============STRUCTS============//

    /// @notice Struct to represent intervals for burning
    struct Interval {
        uint128 amountAllocated;
        uint128 amountBurned;
    }

    //===========IMMUTABLE===========//

    ///@notice The startTimestamp
    uint32 public immutable startTimeStamp;

    ERC20Burnable public immutable titanX;
    ERC20Burnable public immutable volt;
    Lotus public immutable lotus;

    //===========STATE===========//

    /// @notice Timestamp of the last burn call
    uint32 public lastBurnedIntervalStartTimestamp;

    /// @notice Total amount of LOTUS tokens burnt
    uint256 public totalLotusBurnt;

    /// @notice The last burned interval
    uint256 public lastBurnedInterval;

    /// @notice Maximum amount of titanX to be swapped and then burned
    uint128 public swapCap;

    /// @notice Mapping from interval number to Interval struct
    mapping(uint32 interval => Interval) public intervals;

    /// @notice Last interval number
    uint32 public lastIntervalNumber;

    /// @notice Total TitanX tokens distributed
    uint256 public totalTitanXDistributed;

    /// @notice That last snapshot timestamp
    uint32 lastSnapshot;

    //===========EVENTS===========//

    /// @notice Event emitted when tokens are bought and burnt
    event BuyAndBurn(uint256 indexed titanXAmount, uint256 indexed lotusBurnt, address indexed caller);

    //===========ERRORS===========//

    error NotStartedYet();
    error IntervalAlreadyBurned();
    error OnlyEOA();

    //========CONSTRUCTOR========//

    constructor(uint32 startTimestamp, address _titanX, address _volt, address _lotus, SwapActionParams memory _params)
        SwapActions(_params)
    {
        startTimeStamp = startTimestamp;

        lotus = Lotus(_lotus);
        titanX = ERC20Burnable(_titanX);
        volt = ERC20Burnable(_volt);

        swapCap = type(uint128).max;
    }

    //========MODIFIERS=======//

    /// @notice Updates the contract state for intervals
    modifier intervalUpdate() {
        _intervalUpdate();
        _;
    }

    //==========================//
    //==========PUBLIC==========//
    //==========================//

    function setSwapCap(uint128 _newCap) external onlySlippageAdminOrOwner {
        swapCap = _newCap == 0 ? type(uint128).max : _newCap;
    }

    function getCurrentInterval()
        public
        view
        returns (
            uint32 _lastInterval,
            uint128 _amountAllocated,
            uint16 _missedIntervals,
            uint32 _lastIntervalStartTimestamp,
            uint256 beforeCurrday,
            bool updated
        )
    {
        uint32 startPoint = lastBurnedIntervalStartTimestamp == 0 ? startTimeStamp : lastBurnedIntervalStartTimestamp;
        uint32 timeElapseSinceLastBurn = Time.blockTs() - startPoint;

        if (lastBurnedIntervalStartTimestamp == 0 || timeElapseSinceLastBurn > INTERVAL_TIME) {
            (_lastInterval, _amountAllocated, _missedIntervals, beforeCurrday) =
                _calculateIntervals(timeElapseSinceLastBurn);

            _lastIntervalStartTimestamp = startPoint;
            _missedIntervals += timeElapseSinceLastBurn > INTERVAL_TIME && lastBurnedIntervalStartTimestamp != 0 ? 1 : 0;
            updated = true;
        }
    }

    /**
     * @notice Swaps TitanX for LOTUS and burns the LOTUS tokens
     * @param _deadline The deadline for which the passes should pass
     */
    function swapTitanXForLotusAndBurn(uint32 _deadline) external intervalUpdate notExpired(_deadline) {
        require(msg.sender == tx.origin, OnlyEOA());

        Interval storage currInterval = intervals[lastIntervalNumber];
        require(currInterval.amountBurned == 0, IntervalAlreadyBurned());

        if (currInterval.amountAllocated > swapCap) currInterval.amountAllocated = swapCap;

        currInterval.amountBurned = currInterval.amountAllocated;

        uint256 incentive = wmul(currInterval.amountAllocated, INCENTIVE_FEE);

        uint256 titanXToSwapAndBurn = currInterval.amountAllocated - incentive;

        {
            uint256 titanXForVoltTreasury = wmul(titanXToSwapAndBurn, FOR_VOLT_TREASURY);

            uint256 forVoltTreasury =
                swapExactInput(address(titanX), address(volt), titanXForVoltTreasury, 0, _deadline);

            volt.transfer(VOLT_TREASURY, forVoltTreasury);

            titanXToSwapAndBurn -= titanXForVoltTreasury;
        }

        uint256 voltAmount = swapExactInput(address(titanX), address(volt), titanXToSwapAndBurn, 0, _deadline);

        uint256 lotusAmount = swapExactInput(address(volt), address(lotus), voltAmount, 0, _deadline);

        burnLotus();

        titanX.safeTransfer(msg.sender, incentive);

        lastBurnedInterval = lastIntervalNumber;

        emit BuyAndBurn(titanXToSwapAndBurn, lotusAmount, msg.sender);
    }

    /// @notice Burns LOTUS tokens held by the contract
    function burnLotus() public {
        uint256 lotusToBurn = lotus.balanceOf(address(this));

        totalLotusBurnt = totalLotusBurnt + lotusToBurn;
        lotus.burn(lotusToBurn);
    }

    /**
     * @notice Distributes TitanX tokens for burning
     * @param _amount The amount of TitanX tokens
     */
    function distributeTitanXForBurning(uint256 _amount) external notAmount0(_amount) {
        ///@dev - If there are some missed intervals update the accumulated allocation before depositing new titanX

        titanX.safeTransferFrom(msg.sender, address(this), _amount);

        if (Time.blockTs() > startTimeStamp && Time.blockTs() - lastBurnedIntervalStartTimestamp > INTERVAL_TIME) {
            _intervalUpdate();
        }
    }

    //==========================//
    //=========GETTERS==========//
    //==========================//

    function getDailyTitanXAllocation(uint32 t) public pure returns (uint256 dailyWadAllocation) {
        uint8 weekDay = Time.weekDayByT(t);

        dailyWadAllocation = 0.04e18;

        if (weekDay == 5 || weekDay == 6) {
            dailyWadAllocation = 0.15e18;
        } else if (weekDay == 4) {
            dailyWadAllocation = 0.1e18;
        }
    }

    //==========================//
    //=========INTERNAL=========//
    //==========================//

    function _calculateIntervals(uint256 timeElapsedSince)
        internal
        view
        returns (
            uint32 _lastIntervalNumber,
            uint128 _totalAmountForInterval,
            uint16 missedIntervals,
            uint256 beforeCurrDay
        )
    {
        missedIntervals = _calculateMissedIntervals(timeElapsedSince);

        _lastIntervalNumber = lastIntervalNumber + missedIntervals + 1;

        uint32 currentDay = Time.dayGap(startTimeStamp, uint32(block.timestamp));

        uint32 dayOfLastInterval = lastBurnedIntervalStartTimestamp == 0
            ? currentDay
            : Time.dayGap(startTimeStamp, lastBurnedIntervalStartTimestamp);

        if (currentDay == dayOfLastInterval) {
            uint256 dailyAllocation = wmul(totalTitanXDistributed, getDailyTitanXAllocation(Time.blockTs()));

            uint128 _amountPerInterval = uint128(dailyAllocation / INTERVALS_PER_DAY);

            uint128 additionalAmount = _amountPerInterval * missedIntervals;

            _totalAmountForInterval = _amountPerInterval + additionalAmount;
        } else {
            uint32 _lastBurnedIntervalStartTimestamp = lastBurnedIntervalStartTimestamp;

            uint32 theEndOfTheDay = Time.getDayEnd(_lastBurnedIntervalStartTimestamp);

            uint256 balanceOf = titanX.balanceOf(address(this));

            while (currentDay >= dayOfLastInterval) {
                uint32 end = uint32(Time.blockTs() < theEndOfTheDay ? Time.blockTs() : theEndOfTheDay - 1);

                uint32 accumulatedIntervalsForTheDay = (end - _lastBurnedIntervalStartTimestamp) / INTERVAL_TIME;

                uint256 diff = balanceOf > _totalAmountForInterval ? balanceOf - _totalAmountForInterval : 0;

                //@note - If the day we are looping over the same day as the last interval's use the cached allocation, otherwise use the current balance
                uint256 forAllocation = Time.dayGap(startTimeStamp, lastBurnedIntervalStartTimestamp)
                    == dayOfLastInterval
                    ? totalTitanXDistributed
                    : balanceOf >= _totalAmountForInterval + wmul(diff, getDailyTitanXAllocation(end)) ? diff : 0;

                uint256 dailyAllocation = wmul(forAllocation, getDailyTitanXAllocation(end));

                ///@notice ->  minus INTERVAL_TIME minutes since, at the end of the day the new epoch with new allocation
                _lastBurnedIntervalStartTimestamp = theEndOfTheDay - INTERVAL_TIME;

                ///@notice ->  plus INTERVAL_TIME minutes to flip into the next day
                theEndOfTheDay = Time.getDayEnd(_lastBurnedIntervalStartTimestamp + INTERVAL_TIME);

                if (dayOfLastInterval == currentDay) beforeCurrDay = _totalAmountForInterval;

                _totalAmountForInterval +=
                    uint128((dailyAllocation * accumulatedIntervalsForTheDay) / INTERVALS_PER_DAY);

                dayOfLastInterval++;
            }
        }

        Interval memory prevInt = intervals[lastIntervalNumber];

        //@note - If the last interval was only updated, but not burned add its allocation to the next one.
        uint128 additional = prevInt.amountBurned == 0 ? prevInt.amountAllocated : 0;

        if (_totalAmountForInterval + additional > titanX.balanceOf(address(this))) {
            _totalAmountForInterval = uint128(titanX.balanceOf(address(this)));
        } else {
            _totalAmountForInterval += additional;
        }
    }

    function _calculateMissedIntervals(uint256 timeElapsedSince) internal view returns (uint16 _missedIntervals) {
        _missedIntervals = uint16(timeElapsedSince / INTERVAL_TIME);

        if (lastBurnedIntervalStartTimestamp != 0) _missedIntervals--;
    }

    function _updateSnapshot(uint256 deltaAmount) internal {
        if (Time.blockTs() < startTimeStamp || lastSnapshot + 24 hours > Time.blockTs()) return;

        uint32 timeElapsed = Time.blockTs() - startTimeStamp;

        uint32 snapshots = timeElapsed / 24 hours;

        uint256 balance = titanX.balanceOf(address(this));

        totalTitanXDistributed = deltaAmount > balance ? 0 : balance - deltaAmount;
        lastSnapshot = startTimeStamp + (snapshots * 24 hours);
    }

    /// @notice Updates the contract state for intervals
    function _intervalUpdate() private {
        require(Time.blockTs() >= startTimeStamp, NotStartedYet());

        if (lastSnapshot == 0) _updateSnapshot(0);

        (
            uint32 _lastInterval,
            uint128 _amountAllocated,
            uint16 _missedIntervals,
            uint32 _lastIntervalStartTimestamp,
            uint256 beforeCurrentDay,
            bool updated
        ) = getCurrentInterval();

        _updateSnapshot(beforeCurrentDay);

        if (updated) {
            lastBurnedIntervalStartTimestamp = _lastIntervalStartTimestamp + (uint32(_missedIntervals) * INTERVAL_TIME);
            intervals[_lastInterval] = Interval({amountAllocated: _amountAllocated, amountBurned: 0});
            lastIntervalNumber = _lastInterval;
        }
    }
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;

import {IUniswapV3PoolImmutables} from './pool/IUniswapV3PoolImmutables.sol';
import {IUniswapV3PoolState} from './pool/IUniswapV3PoolState.sol';
import {IUniswapV3PoolDerivedState} from './pool/IUniswapV3PoolDerivedState.sol';
import {IUniswapV3PoolActions} from './pool/IUniswapV3PoolActions.sol';
import {IUniswapV3PoolOwnerActions} from './pool/IUniswapV3PoolOwnerActions.sol';
import {IUniswapV3PoolErrors} from './pool/IUniswapV3PoolErrors.sol';
import {IUniswapV3PoolEvents} from './pool/IUniswapV3PoolEvents.sol';

/// @title The interface for a Uniswap V3 Pool
/// @notice A Uniswap pool facilitates swapping and automated market making between any two assets that strictly conform
/// to the ERC20 specification
/// @dev The pool interface is broken up into many smaller pieces
interface IUniswapV3Pool is
    IUniswapV3PoolImmutables,
    IUniswapV3PoolState,
    IUniswapV3PoolDerivedState,
    IUniswapV3PoolActions,
    IUniswapV3PoolOwnerActions,
    IUniswapV3PoolErrors,
    IUniswapV3PoolEvents
{

}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.7.5;
pragma abicoder v2;

import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol';
import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol';

import './IPoolInitializer.sol';
import './IERC721Permit.sol';
import './IPeripheryPayments.sol';
import './IPeripheryImmutableState.sol';
import '../libraries/PoolAddress.sol';

/// @title Non-fungible token for positions
/// @notice Wraps Uniswap V3 positions in a non-fungible token interface which allows for them to be transferred
/// and authorized.
interface INonfungiblePositionManager is
    IPoolInitializer,
    IPeripheryPayments,
    IPeripheryImmutableState,
    IERC721Metadata,
    IERC721Enumerable,
    IERC721Permit
{
    /// @notice Emitted when liquidity is increased for a position NFT
    /// @dev Also emitted when a token is minted
    /// @param tokenId The ID of the token for which liquidity was increased
    /// @param liquidity The amount by which liquidity for the NFT position was increased
    /// @param amount0 The amount of token0 that was paid for the increase in liquidity
    /// @param amount1 The amount of token1 that was paid for the increase in liquidity
    event IncreaseLiquidity(uint256 indexed tokenId, uint128 liquidity, uint256 amount0, uint256 amount1);
    /// @notice Emitted when liquidity is decreased for a position NFT
    /// @param tokenId The ID of the token for which liquidity was decreased
    /// @param liquidity The amount by which liquidity for the NFT position was decreased
    /// @param amount0 The amount of token0 that was accounted for the decrease in liquidity
    /// @param amount1 The amount of token1 that was accounted for the decrease in liquidity
    event DecreaseLiquidity(uint256 indexed tokenId, uint128 liquidity, uint256 amount0, uint256 amount1);
    /// @notice Emitted when tokens are collected for a position NFT
    /// @dev The amounts reported may not be exactly equivalent to the amounts transferred, due to rounding behavior
    /// @param tokenId The ID of the token for which underlying tokens were collected
    /// @param recipient The address of the account that received the collected tokens
    /// @param amount0 The amount of token0 owed to the position that was collected
    /// @param amount1 The amount of token1 owed to the position that was collected
    event Collect(uint256 indexed tokenId, address recipient, uint256 amount0, uint256 amount1);

    /// @notice Returns the position information associated with a given token ID.
    /// @dev Throws if the token ID is not valid.
    /// @param tokenId The ID of the token that represents the position
    /// @return nonce The nonce for permits
    /// @return operator The address that is approved for spending
    /// @return token0 The address of the token0 for a specific pool
    /// @return token1 The address of the token1 for a specific pool
    /// @return fee The fee associated with the pool
    /// @return tickLower The lower end of the tick range for the position
    /// @return tickUpper The higher end of the tick range for the position
    /// @return liquidity The liquidity of the position
    /// @return feeGrowthInside0LastX128 The fee growth of token0 as of the last action on the individual position
    /// @return feeGrowthInside1LastX128 The fee growth of token1 as of the last action on the individual position
    /// @return tokensOwed0 The uncollected amount of token0 owed to the position as of the last computation
    /// @return tokensOwed1 The uncollected amount of token1 owed to the position as of the last computation
    function positions(uint256 tokenId)
        external
        view
        returns (
            uint96 nonce,
            address operator,
            address token0,
            address token1,
            uint24 fee,
            int24 tickLower,
            int24 tickUpper,
            uint128 liquidity,
            uint256 feeGrowthInside0LastX128,
            uint256 feeGrowthInside1LastX128,
            uint128 tokensOwed0,
            uint128 tokensOwed1
        );

    struct MintParams {
        address token0;
        address token1;
        uint24 fee;
        int24 tickLower;
        int24 tickUpper;
        uint256 amount0Desired;
        uint256 amount1Desired;
        uint256 amount0Min;
        uint256 amount1Min;
        address recipient;
        uint256 deadline;
    }

    /// @notice Creates a new position wrapped in a NFT
    /// @dev Call this when the pool does exist and is initialized. Note that if the pool is created but not initialized
    /// a method does not exist, i.e. the pool is assumed to be initialized.
    /// @param params The params necessary to mint a position, encoded as `MintParams` in calldata
    /// @return tokenId The ID of the token that represents the minted position
    /// @return liquidity The amount of liquidity for this position
    /// @return amount0 The amount of token0
    /// @return amount1 The amount of token1
    function mint(MintParams calldata params)
        external
        payable
        returns (
            uint256 tokenId,
            uint128 liquidity,
            uint256 amount0,
            uint256 amount1
        );

    struct IncreaseLiquidityParams {
        uint256 tokenId;
        uint256 amount0Desired;
        uint256 amount1Desired;
        uint256 amount0Min;
        uint256 amount1Min;
        uint256 deadline;
    }

    /// @notice Increases the amount of liquidity in a position, with tokens paid by the `msg.sender`
    /// @param params tokenId The ID of the token for which liquidity is being increased,
    /// amount0Desired The desired amount of token0 to be spent,
    /// amount1Desired The desired amount of token1 to be spent,
    /// amount0Min The minimum amount of token0 to spend, which serves as a slippage check,
    /// amount1Min The minimum amount of token1 to spend, which serves as a slippage check,
    /// deadline The time by which the transaction must be included to effect the change
    /// @return liquidity The new liquidity amount as a result of the increase
    /// @return amount0 The amount of token0 to acheive resulting liquidity
    /// @return amount1 The amount of token1 to acheive resulting liquidity
    function increaseLiquidity(IncreaseLiquidityParams calldata params)
        external
        payable
        returns (
            uint128 liquidity,
            uint256 amount0,
            uint256 amount1
        );

    struct DecreaseLiquidityParams {
        uint256 tokenId;
        uint128 liquidity;
        uint256 amount0Min;
        uint256 amount1Min;
        uint256 deadline;
    }

    /// @notice Decreases the amount of liquidity in a position and accounts it to the position
    /// @param params tokenId The ID of the token for which liquidity is being decreased,
    /// amount The amount by which liquidity will be decreased,
    /// amount0Min The minimum amount of token0 that should be accounted for the burned liquidity,
    /// amount1Min The minimum amount of token1 that should be accounted for the burned liquidity,
    /// deadline The time by which the transaction must be included to effect the change
    /// @return amount0 The amount of token0 accounted to the position's tokens owed
    /// @return amount1 The amount of token1 accounted to the position's tokens owed
    function decreaseLiquidity(DecreaseLiquidityParams calldata params)
        external
        payable
        returns (uint256 amount0, uint256 amount1);

    struct CollectParams {
        uint256 tokenId;
        address recipient;
        uint128 amount0Max;
        uint128 amount1Max;
    }

    /// @notice Collects up to a maximum amount of fees owed to a specific position to the recipient
    /// @param params tokenId The ID of the NFT for which tokens are being collected,
    /// recipient The account that should receive the tokens,
    /// amount0Max The maximum amount of token0 to collect,
    /// amount1Max The maximum amount of token1 to collect
    /// @return amount0 The amount of fees collected in token0
    /// @return amount1 The amount of fees collected in token1
    function collect(CollectParams calldata params) external payable returns (uint256 amount0, uint256 amount1);

    /// @notice Burns a token ID, which deletes it from the NFT contract. The token must have 0 liquidity and all tokens
    /// must be collected first.
    /// @param tokenId The ID of the token that is being burned
    function burn(uint256 tokenId) external payable;
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.7.5;
pragma abicoder v2;

/// @title Quoter Interface
/// @notice Supports quoting the calculated amounts from exact input or exact output swaps
/// @dev These functions are not marked view because they rely on calling non-view functions and reverting
/// to compute the result. They are also not gas efficient and should not be called on-chain.
interface IQuoter {
    /// @notice Returns the amount out received for a given exact input swap without executing the swap
    /// @param path The path of the swap, i.e. each token pair and the pool fee
    /// @param amountIn The amount of the first token to swap
    /// @return amountOut The amount of the last token that would be received
    function quoteExactInput(bytes memory path, uint256 amountIn) external returns (uint256 amountOut);

    /// @notice Returns the amount out received for a given exact input but for a swap of a single pool
    /// @param tokenIn The token being swapped in
    /// @param tokenOut The token being swapped out
    /// @param fee The fee of the token pool to consider for the pair
    /// @param amountIn The desired input amount
    /// @param sqrtPriceLimitX96 The price limit of the pool that cannot be exceeded by the swap
    /// @return amountOut The amount of `tokenOut` that would be received
    function quoteExactInputSingle(
        address tokenIn,
        address tokenOut,
        uint24 fee,
        uint256 amountIn,
        uint160 sqrtPriceLimitX96
    ) external returns (uint256 amountOut);

    /// @notice Returns the amount in required for a given exact output swap without executing the swap
    /// @param path The path of the swap, i.e. each token pair and the pool fee. Path must be provided in reverse order
    /// @param amountOut The amount of the last token to receive
    /// @return amountIn The amount of first token required to be paid
    function quoteExactOutput(bytes memory path, uint256 amountOut) external returns (uint256 amountIn);

    /// @notice Returns the amount in required to receive the given exact output amount but for a swap of a single pool
    /// @param tokenIn The token being swapped in
    /// @param tokenOut The token being swapped out
    /// @param fee The fee of the token pool to consider for the pair
    /// @param amountOut The desired output amount
    /// @param sqrtPriceLimitX96 The price limit of the pool that cannot be exceeded by the swap
    /// @return amountIn The amount required as the input for the swap in order to receive `amountOut`
    function quoteExactOutputSingle(
        address tokenIn,
        address tokenOut,
        uint24 fee,
        uint256 amountOut,
        uint160 sqrtPriceLimitX96
    ) external returns (uint256 amountIn);
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;

/// @title Provides functions for deriving a pool address from the factory, tokens, and the fee
library PoolAddress {
    bytes32 internal constant POOL_INIT_CODE_HASH = 0xa598dd2fba360510c5a8f02f44423a4468e902df5857dbce3ca162a43a3a31ff;

    /// @notice The identifying key of the pool
    struct PoolKey {
        address token0;
        address token1;
        uint24 fee;
    }

    /// @notice Returns PoolKey: the ordered tokens with the matched fee levels
    /// @param tokenA The first token of a pool, unsorted
    /// @param tokenB The second token of a pool, unsorted
    /// @param fee The fee level of the pool
    /// @return Poolkey The pool details with ordered token0 and token1 assignments
    function getPoolKey(
        address tokenA,
        address tokenB,
        uint24 fee
    ) internal pure returns (PoolKey memory) {
        if (tokenA > tokenB) (tokenA, tokenB) = (tokenB, tokenA);
        return PoolKey({token0: tokenA, token1: tokenB, fee: fee});
    }

    /// @notice Deterministically computes the pool address given the factory and PoolKey
    /// @param factory The Uniswap V3 factory contract address
    /// @param key The PoolKey
    /// @return pool The contract address of the V3 pool
    function computeAddress(address factory, PoolKey memory key) internal pure returns (address pool) {
        require(key.token0 < key.token1);
        pool = address(
            uint160(
                uint256(
                    keccak256(
                        abi.encodePacked(
                            hex'ff',
                            factory,
                            keccak256(abi.encode(key.token0, key.token1, key.fee)),
                            POOL_INIT_CODE_HASH
                        )
                    )
                )
            )
        );
    }
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.27;

// Uniswap
import {IUniswapV3Pool} from "@uniswap/v3-core/contracts/interfaces/IUniswapV3Pool.sol";

// OpenZeppelin
import {Math} from "@openzeppelin/contracts/utils/math/Math.sol";

/**
 * @notice Adapted Uniswap V3 OracleLibrary computation to be compliant with Solidity 0.8.x and later.
 *
 * Documentation for Auditors:
 *
 * Solidity Version: Updated the Solidity version pragma to ^0.8.0. This change ensures compatibility
 * with Solidity version 0.8.x.
 *
 * Safe Arithmetic Operations: Solidity 0.8.x automatically checks for arithmetic overflows/underflows.
 * Therefore, the code no longer needs to use SafeMath library (or similar) for basic arithmetic operations.
 * This change simplifies the code and reduces the potential for errors related to manual overflow/underflow checking.
 *
 * Overflow/Underflow: With the introduction of automatic overflow/underflow checks in Solidity 0.8.x, the code is inherently
 * safer and less prone to certain types of arithmetic errors.
 *
 * Removal of SafeMath Library: Since Solidity 0.8.x handles arithmetic operations safely, the use of SafeMath library
 * is omitted in this update.
 *
 * Git-style diff for the `consult` function:
 *
 * ```diff
 * function consult(address pool, uint32 secondsAgo)
 *     internal
 *     view
 *     returns (int24 arithmeticMeanTick, uint128 harmonicMeanLiquidity)
 * {
 *     require(secondsAgo != 0, 'BP');
 *
 *     uint32[] memory secondsAgos = new uint32[](2);
 *     secondsAgos[0] = secondsAgo;
 *     secondsAgos[1] = 0;
 *
 *     (int56[] memory tickCumulatives, uint160[] memory secondsPerLiquidityCumulativeX128s) =
 *         IUniswapV3Pool(pool).observe(secondsAgos);
 *
 *     int56 tickCumulativesDelta = tickCumulatives[1] - tickCumulatives[0];
 *     uint160 secondsPerLiquidityCumulativesDelta =
 *         secondsPerLiquidityCumulativeX128s[1] - secondsPerLiquidityCumulativeX128s[0];
 *
 * -   arithmeticMeanTick = int24(tickCumulativesDelta / secondsAgo);
 * +   int56 secondsAgoInt56 = int56(uint56(secondsAgo));
 * +   arithmeticMeanTick = int24(tickCumulativesDelta / secondsAgoInt56);
 *     // Always round to negative infinity
 * -   if (tickCumulativesDelta < 0 && (tickCumulativesDelta % secondsAgo != 0)) arithmeticMeanTick--;
 * +   if (tickCumulativesDelta < 0 && (tickCumulativesDelta % secondsAgoInt56 != 0)) arithmeticMeanTick--;
 *
 * -   uint192 secondsAgoX160 = uint192(secondsAgo) * type(uint160).max;
 * +   uint192 secondsAgoUint192 = uint192(secondsAgo);
 * +   uint192 secondsAgoX160 = secondsAgoUint192 * type(uint160).max;
 *     harmonicMeanLiquidity = uint128(secondsAgoX160 / (uint192(secondsPerLiquidityCumulativesDelta) << 32));
 * }
 * ```
 */

/// @title Oracle library
/// @notice Provides functions to integrate with V3 pool oracle
library OracleLibrary {
    /// @notice Calculates time-weighted means of tick and liquidity for a given Uniswap V3 pool
    /// @param pool Address of the pool that we want to observe
    /// @param secondsAgo Number of seconds in the past from which to calculate the time-weighted means
    /// @return arithmeticMeanTick The arithmetic mean tick from (block.timestamp - secondsAgo) to block.timestamp
    /// @return harmonicMeanLiquidity The harmonic mean liquidity from (block.timestamp - secondsAgo) to block.timestamp
    function consult(address pool, uint32 secondsAgo)
        internal
        view
        returns (int24 arithmeticMeanTick, uint128 harmonicMeanLiquidity)
    {
        require(secondsAgo != 0, "BP");

        uint32[] memory secondsAgos = new uint32[](2);
        secondsAgos[0] = secondsAgo;
        secondsAgos[1] = 0;

        (int56[] memory tickCumulatives, uint160[] memory secondsPerLiquidityCumulativeX128s) =
            IUniswapV3Pool(pool).observe(secondsAgos);

        int56 tickCumulativesDelta = tickCumulatives[1] - tickCumulatives[0];
        uint160 secondsPerLiquidityCumulativesDelta =
            secondsPerLiquidityCumulativeX128s[1] - secondsPerLiquidityCumulativeX128s[0];

        // Safe casting of secondsAgo to int56 for division
        int56 secondsAgoInt56 = int56(uint56(secondsAgo));
        arithmeticMeanTick = int24(tickCumulativesDelta / secondsAgoInt56);
        // Always round to negative infinity
        if (tickCumulativesDelta < 0 && (tickCumulativesDelta % secondsAgoInt56 != 0)) arithmeticMeanTick--;

        // Safe casting of secondsAgo to uint192 for multiplication
        uint192 secondsAgoUint192 = uint192(secondsAgo);
        harmonicMeanLiquidity = uint128(
            (secondsAgoUint192 * uint192(type(uint160).max)) / (uint192(secondsPerLiquidityCumulativesDelta) << 32)
        );
    }

    /// @notice Given a pool, it returns the number of seconds ago of the oldest stored observation
    /// @param pool Address of Uniswap V3 pool that we want to observe
    /// @return secondsAgo The number of seconds ago of the oldest observation stored for the pool
    function getOldestObservationSecondsAgo(address pool) internal view returns (uint32 secondsAgo) {
        (,, uint16 observationIndex, uint16 observationCardinality,,,) = IUniswapV3Pool(pool).slot0();
        require(observationCardinality > 0, "NI");

        (uint32 observationTimestamp,,, bool initialized) =
            IUniswapV3Pool(pool).observations((observationIndex + 1) % observationCardinality);

        // The next index might not be initialized if the cardinality is in the process of increasing
        // In this case the oldest observation is always in index 0
        if (!initialized) {
            (observationTimestamp,,,) = IUniswapV3Pool(pool).observations(0);
        }

        secondsAgo = uint32(block.timestamp) - observationTimestamp;
    }

    /// @notice Given a tick and a token amount, calculates the amount of token received in exchange
    /// a slightly modified version of the UniSwap library getQuoteAtTick to accept a sqrtRatioX96 as input parameter
    /// @param sqrtRatioX96 The sqrt ration
    /// @param baseAmount Amount of token to be converted
    /// @param baseToken Address of an ERC20 token contract used as the baseAmount denomination
    /// @param quoteToken Address of an ERC20 token contract used as the quoteAmount denomination
    /// @return quoteAmount Amount of quoteToken received for baseAmount of baseToken
    function getQuoteForSqrtRatioX96(uint160 sqrtRatioX96, uint256 baseAmount, address baseToken, address quoteToken)
        internal
        pure
        returns (uint256 quoteAmount)
    {
        // Calculate quoteAmount with better precision if it doesn't overflow when multiplied by itself
        if (sqrtRatioX96 <= type(uint128).max) {
            uint256 ratioX192 = uint256(sqrtRatioX96) ** 2;
            quoteAmount = baseToken < quoteToken
                ? Math.mulDiv(ratioX192, baseAmount, 1 << 192)
                : Math.mulDiv(1 << 192, baseAmount, ratioX192);
        } else {
            uint256 ratioX128 = Math.mulDiv(sqrtRatioX96, sqrtRatioX96, 1 << 64);
            quoteAmount = baseToken < quoteToken
                ? Math.mulDiv(ratioX128, baseAmount, 1 << 128)
                : Math.mulDiv(1 << 128, baseAmount, ratioX128);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/structs/EnumerableSet.sol)
// This file was procedurally generated from scripts/generate/templates/EnumerableSet.js.

pragma solidity ^0.8.20;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```solidity
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
 * and `uint256` (`UintSet`) are supported.
 *
 * [WARNING]
 * ====
 * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure
 * unusable.
 * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info.
 *
 * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an
 * array of EnumerableSet.
 * ====
 */
library EnumerableSet {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.

    struct Set {
        // Storage of set values
        bytes32[] _values;
        // Position is the index of the value in the `values` array plus 1.
        // Position 0 is used to mean a value is not in the set.
        mapping(bytes32 value => uint256) _positions;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function _add(Set storage set, bytes32 value) private returns (bool) {
        if (!_contains(set, value)) {
            set._values.push(value);
            // The value is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            set._positions[value] = set._values.length;
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function _remove(Set storage set, bytes32 value) private returns (bool) {
        // We cache the value's position to prevent multiple reads from the same storage slot
        uint256 position = set._positions[value];

        if (position != 0) {
            // Equivalent to contains(set, value)
            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
            // the array, and then remove the last element (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.

            uint256 valueIndex = position - 1;
            uint256 lastIndex = set._values.length - 1;

            if (valueIndex != lastIndex) {
                bytes32 lastValue = set._values[lastIndex];

                // Move the lastValue to the index where the value to delete is
                set._values[valueIndex] = lastValue;
                // Update the tracked position of the lastValue (that was just moved)
                set._positions[lastValue] = position;
            }

            // Delete the slot where the moved value was stored
            set._values.pop();

            // Delete the tracked position for the deleted slot
            delete set._positions[value];

            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function _contains(Set storage set, bytes32 value) private view returns (bool) {
        return set._positions[value] != 0;
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function _length(Set storage set) private view returns (uint256) {
        return set._values.length;
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function _at(Set storage set, uint256 index) private view returns (bytes32) {
        return set._values[index];
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function _values(Set storage set) private view returns (bytes32[] memory) {
        return set._values;
    }

    // Bytes32Set

    struct Bytes32Set {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _add(set._inner, value);
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _remove(set._inner, value);
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
        return _contains(set._inner, value);
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(Bytes32Set storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
        return _at(set._inner, index);
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
        bytes32[] memory store = _values(set._inner);
        bytes32[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(AddressSet storage set, address value) internal returns (bool) {
        return _add(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(AddressSet storage set, address value) internal returns (bool) {
        return _remove(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(AddressSet storage set, address value) internal view returns (bool) {
        return _contains(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(AddressSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(AddressSet storage set, uint256 index) internal view returns (address) {
        return address(uint160(uint256(_at(set._inner, index))));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(AddressSet storage set) internal view returns (address[] memory) {
        bytes32[] memory store = _values(set._inner);
        address[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }

    // UintSet

    struct UintSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(UintSet storage set, uint256 value) internal returns (bool) {
        return _add(set._inner, bytes32(value));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(UintSet storage set, uint256 value) internal returns (bool) {
        return _remove(set._inner, bytes32(value));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(UintSet storage set, uint256 value) internal view returns (bool) {
        return _contains(set._inner, bytes32(value));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(UintSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(UintSet storage set, uint256 index) internal view returns (uint256) {
        return uint256(_at(set._inner, index));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(UintSet storage set) internal view returns (uint256[] memory) {
        bytes32[] memory store = _values(set._inner);
        uint256[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../token/ERC20/IERC20.sol";

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

import {IVRFCoordinatorV2Plus} from "./interfaces/IVRFCoordinatorV2Plus.sol";
import {IVRFMigratableConsumerV2Plus} from "./interfaces/IVRFMigratableConsumerV2Plus.sol";
import {ConfirmedOwner} from "../../shared/access/ConfirmedOwner.sol";

/** ****************************************************************************
 * @notice Interface for contracts using VRF randomness
 * *****************************************************************************
 * @dev PURPOSE
 *
 * @dev Reggie the Random Oracle (not his real job) wants to provide randomness
 * @dev to Vera the verifier in such a way that Vera can be sure he's not
 * @dev making his output up to suit himself. Reggie provides Vera a public key
 * @dev to which he knows the secret key. Each time Vera provides a seed to
 * @dev Reggie, he gives back a value which is computed completely
 * @dev deterministically from the seed and the secret key.
 *
 * @dev Reggie provides a proof by which Vera can verify that the output was
 * @dev correctly computed once Reggie tells it to her, but without that proof,
 * @dev the output is indistinguishable to her from a uniform random sample
 * @dev from the output space.
 *
 * @dev The purpose of this contract is to make it easy for unrelated contracts
 * @dev to talk to Vera the verifier about the work Reggie is doing, to provide
 * @dev simple access to a verifiable source of randomness. It ensures 2 things:
 * @dev 1. The fulfillment came from the VRFCoordinatorV2Plus.
 * @dev 2. The consumer contract implements fulfillRandomWords.
 * *****************************************************************************
 * @dev USAGE
 *
 * @dev Calling contracts must inherit from VRFConsumerBaseV2Plus, and can
 * @dev initialize VRFConsumerBaseV2Plus's attributes in their constructor as
 * @dev shown:
 *
 * @dev   contract VRFConsumerV2Plus is VRFConsumerBaseV2Plus {
 * @dev     constructor(<other arguments>, address _vrfCoordinator, address _subOwner)
 * @dev       VRFConsumerBaseV2Plus(_vrfCoordinator, _subOwner) public {
 * @dev         <initialization with other arguments goes here>
 * @dev       }
 * @dev   }
 *
 * @dev The oracle will have given you an ID for the VRF keypair they have
 * @dev committed to (let's call it keyHash). Create a subscription, fund it
 * @dev and your consumer contract as a consumer of it (see VRFCoordinatorInterface
 * @dev subscription management functions).
 * @dev Call requestRandomWords(keyHash, subId, minimumRequestConfirmations,
 * @dev callbackGasLimit, numWords, extraArgs),
 * @dev see (IVRFCoordinatorV2Plus for a description of the arguments).
 *
 * @dev Once the VRFCoordinatorV2Plus has received and validated the oracle's response
 * @dev to your request, it will call your contract's fulfillRandomWords method.
 *
 * @dev The randomness argument to fulfillRandomWords is a set of random words
 * @dev generated from your requestId and the blockHash of the request.
 *
 * @dev If your contract could have concurrent requests open, you can use the
 * @dev requestId returned from requestRandomWords to track which response is associated
 * @dev with which randomness request.
 * @dev See "SECURITY CONSIDERATIONS" for principles to keep in mind,
 * @dev if your contract could have multiple requests in flight simultaneously.
 *
 * @dev Colliding `requestId`s are cryptographically impossible as long as seeds
 * @dev differ.
 *
 * *****************************************************************************
 * @dev SECURITY CONSIDERATIONS
 *
 * @dev A method with the ability to call your fulfillRandomness method directly
 * @dev could spoof a VRF response with any random value, so it's critical that
 * @dev it cannot be directly called by anything other than this base contract
 * @dev (specifically, by the VRFConsumerBaseV2Plus.rawFulfillRandomness method).
 *
 * @dev For your users to trust that your contract's random behavior is free
 * @dev from malicious interference, it's best if you can write it so that all
 * @dev behaviors implied by a VRF response are executed *during* your
 * @dev fulfillRandomness method. If your contract must store the response (or
 * @dev anything derived from it) and use it later, you must ensure that any
 * @dev user-significant behavior which depends on that stored value cannot be
 * @dev manipulated by a subsequent VRF request.
 *
 * @dev Similarly, both miners and the VRF oracle itself have some influence
 * @dev over the order in which VRF responses appear on the blockchain, so if
 * @dev your contract could have multiple VRF requests in flight simultaneously,
 * @dev you must ensure that the order in which the VRF responses arrive cannot
 * @dev be used to manipulate your contract's user-significant behavior.
 *
 * @dev Since the block hash of the block which contains the requestRandomness
 * @dev call is mixed into the input to the VRF *last*, a sufficiently powerful
 * @dev miner could, in principle, fork the blockchain to evict the block
 * @dev containing the request, forcing the request to be included in a
 * @dev different block with a different hash, and therefore a different input
 * @dev to the VRF. However, such an attack would incur a substantial economic
 * @dev cost. This cost scales with the number of blocks the VRF oracle waits
 * @dev until it calls responds to a request. It is for this reason that
 * @dev that you can signal to an oracle you'd like them to wait longer before
 * @dev responding to the request (however this is not enforced in the contract
 * @dev and so remains effective only in the case of unmodified oracle software).
 */
abstract contract VRFConsumerBaseV2Plus is IVRFMigratableConsumerV2Plus, ConfirmedOwner {
  error OnlyCoordinatorCanFulfill(address have, address want);
  error OnlyOwnerOrCoordinator(address have, address owner, address coordinator);
  error ZeroAddress();

  // s_vrfCoordinator should be used by consumers to make requests to vrfCoordinator
  // so that coordinator reference is updated after migration
  IVRFCoordinatorV2Plus public s_vrfCoordinator;

  /**
   * @param _vrfCoordinator address of VRFCoordinator contract
   */
  constructor(address _vrfCoordinator) ConfirmedOwner(msg.sender) {
    if (_vrfCoordinator == address(0)) {
      revert ZeroAddress();
    }
    s_vrfCoordinator = IVRFCoordinatorV2Plus(_vrfCoordinator);
  }

  /**
   * @notice fulfillRandomness handles the VRF response. Your contract must
   * @notice implement it. See "SECURITY CONSIDERATIONS" above for important
   * @notice principles to keep in mind when implementing your fulfillRandomness
   * @notice method.
   *
   * @dev VRFConsumerBaseV2Plus expects its subcontracts to have a method with this
   * @dev signature, and will call it once it has verified the proof
   * @dev associated with the randomness. (It is triggered via a call to
   * @dev rawFulfillRandomness, below.)
   *
   * @param requestId The Id initially returned by requestRandomness
   * @param randomWords the VRF output expanded to the requested number of words
   */
  // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore
  function fulfillRandomWords(uint256 requestId, uint256[] calldata randomWords) internal virtual;

  // rawFulfillRandomness is called by VRFCoordinator when it receives a valid VRF
  // proof. rawFulfillRandomness then calls fulfillRandomness, after validating
  // the origin of the call
  function rawFulfillRandomWords(uint256 requestId, uint256[] calldata randomWords) external {
    if (msg.sender != address(s_vrfCoordinator)) {
      revert OnlyCoordinatorCanFulfill(msg.sender, address(s_vrfCoordinator));
    }
    fulfillRandomWords(requestId, randomWords);
  }

  /**
   * @inheritdoc IVRFMigratableConsumerV2Plus
   */
  function setCoordinator(address _vrfCoordinator) external override onlyOwnerOrCoordinator {
    if (_vrfCoordinator == address(0)) {
      revert ZeroAddress();
    }
    s_vrfCoordinator = IVRFCoordinatorV2Plus(_vrfCoordinator);

    emit CoordinatorSet(_vrfCoordinator);
  }

  modifier onlyOwnerOrCoordinator() {
    if (msg.sender != owner() && msg.sender != address(s_vrfCoordinator)) {
      revert OnlyOwnerOrCoordinator(msg.sender, owner(), address(s_vrfCoordinator));
    }
    _;
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

// End consumer library.
library VRFV2PlusClient {
  // extraArgs will evolve to support new features
  bytes4 public constant EXTRA_ARGS_V1_TAG = bytes4(keccak256("VRF ExtraArgsV1"));
  struct ExtraArgsV1 {
    bool nativePayment;
  }

  struct RandomWordsRequest {
    bytes32 keyHash;
    uint256 subId;
    uint16 requestConfirmations;
    uint32 callbackGasLimit;
    uint32 numWords;
    bytes extraArgs;
  }

  function _argsToBytes(ExtraArgsV1 memory extraArgs) internal pure returns (bytes memory bts) {
    return abi.encodeWithSelector(EXTRA_ARGS_V1_TAG, extraArgs);
  }
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;

/// @title Provides functions for deriving a pool address from the factory, tokens, and the fee
library PoolAddress {
    bytes32 internal constant POOL_INIT_CODE_HASH = 0xe34f199b19b2b4f47f68442619d555527d244f78a3297ea89325f843f87b8b54;

    /// @notice The identifying key of the pool
    struct PoolKey {
        address token0;
        address token1;
        uint24 fee;
    }

    /// @notice Returns PoolKey: the ordered tokens with the matched fee levels
    /// @param tokenA The first token of a pool, unsorted
    /// @param tokenB The second token of a pool, unsorted
    /// @param fee The fee level of the pool
    /// @return Poolkey The pool details with ordered token0 and token1 assignments
    function getPoolKey(address tokenA, address tokenB, uint24 fee) internal pure returns (PoolKey memory) {
        if (tokenA > tokenB) (tokenA, tokenB) = (tokenB, tokenA);
        return PoolKey({token0: tokenA, token1: tokenB, fee: fee});
    }

    /// @notice Deterministically computes the pool address given the factory and PoolKey
    /// @param factory The Uniswap V3 factory contract address
    /// @param key The PoolKey
    /// @return pool The contract address of the V3 pool
    function computeAddress(address factory, PoolKey memory key) internal pure returns (address pool) {
        require(key.token0 < key.token1);
        pool = address(
            uint160(
                uint256(
                    keccak256(
                        abi.encodePacked(
                            hex"ff",
                            factory,
                            keccak256(abi.encode(key.token0, key.token1, key.fee)),
                            POOL_INIT_CODE_HASH
                        )
                    )
                )
            )
        );
    }
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity ^0.8.0;

/// @title Math library for computing sqrt prices from ticks and vice versa
/// @notice Computes sqrt price for ticks of size 1.0001, i.e. sqrt(1.0001^tick) as fixed point Q64.96 numbers. Supports
/// prices between 2**-128 and 2**128
library TickMath {
    error T();
    error R();

    /// @dev The minimum tick that may be passed to #getSqrtRatioAtTick computed from log base 1.0001 of 2**-128
    int24 internal constant MIN_TICK = -887272;
    /// @dev The maximum tick that may be passed to #getSqrtRatioAtTick computed from log base 1.0001 of 2**128
    int24 internal constant MAX_TICK = -MIN_TICK;

    /// @dev The minimum value that can be returned from #getSqrtRatioAtTick. Equivalent to getSqrtRatioAtTick(MIN_TICK)
    uint160 internal constant MIN_SQRT_RATIO = 4295128739;
    /// @dev The maximum value that can be returned from #getSqrtRatioAtTick. Equivalent to getSqrtRatioAtTick(MAX_TICK)
    uint160 internal constant MAX_SQRT_RATIO = 1461446703485210103287273052203988822378723970342;

    /// @notice Calculates sqrt(1.0001^tick) * 2^96
    /// @dev Throws if |tick| > max tick
    /// @param tick The input tick for the above formula
    /// @return sqrtPriceX96 A Fixed point Q64.96 number representing the sqrt of the ratio of the two assets (token1/token0)
    /// at the given tick
    function getSqrtRatioAtTick(int24 tick) internal pure returns (uint160 sqrtPriceX96) {
        unchecked {
            uint256 absTick = tick < 0 ? uint256(-int256(tick)) : uint256(int256(tick));
            if (absTick > uint256(int256(MAX_TICK))) revert T();

            uint256 ratio = absTick & 0x1 != 0
                ? 0xfffcb933bd6fad37aa2d162d1a594001
                : 0x100000000000000000000000000000000;
            if (absTick & 0x2 != 0) ratio = (ratio * 0xfff97272373d413259a46990580e213a) >> 128;
            if (absTick & 0x4 != 0) ratio = (ratio * 0xfff2e50f5f656932ef12357cf3c7fdcc) >> 128;
            if (absTick & 0x8 != 0) ratio = (ratio * 0xffe5caca7e10e4e61c3624eaa0941cd0) >> 128;
            if (absTick & 0x10 != 0) ratio = (ratio * 0xffcb9843d60f6159c9db58835c926644) >> 128;
            if (absTick & 0x20 != 0) ratio = (ratio * 0xff973b41fa98c081472e6896dfb254c0) >> 128;
            if (absTick & 0x40 != 0) ratio = (ratio * 0xff2ea16466c96a3843ec78b326b52861) >> 128;
            if (absTick & 0x80 != 0) ratio = (ratio * 0xfe5dee046a99a2a811c461f1969c3053) >> 128;
            if (absTick & 0x100 != 0) ratio = (ratio * 0xfcbe86c7900a88aedcffc83b479aa3a4) >> 128;
            if (absTick & 0x200 != 0) ratio = (ratio * 0xf987a7253ac413176f2b074cf7815e54) >> 128;
            if (absTick & 0x400 != 0) ratio = (ratio * 0xf3392b0822b70005940c7a398e4b70f3) >> 128;
            if (absTick & 0x800 != 0) ratio = (ratio * 0xe7159475a2c29b7443b29c7fa6e889d9) >> 128;
            if (absTick & 0x1000 != 0) ratio = (ratio * 0xd097f3bdfd2022b8845ad8f792aa5825) >> 128;
            if (absTick & 0x2000 != 0) ratio = (ratio * 0xa9f746462d870fdf8a65dc1f90e061e5) >> 128;
            if (absTick & 0x4000 != 0) ratio = (ratio * 0x70d869a156d2a1b890bb3df62baf32f7) >> 128;
            if (absTick & 0x8000 != 0) ratio = (ratio * 0x31be135f97d08fd981231505542fcfa6) >> 128;
            if (absTick & 0x10000 != 0) ratio = (ratio * 0x9aa508b5b7a84e1c677de54f3e99bc9) >> 128;
            if (absTick & 0x20000 != 0) ratio = (ratio * 0x5d6af8dedb81196699c329225ee604) >> 128;
            if (absTick & 0x40000 != 0) ratio = (ratio * 0x2216e584f5fa1ea926041bedfe98) >> 128;
            if (absTick & 0x80000 != 0) ratio = (ratio * 0x48a170391f7dc42444e8fa2) >> 128;

            if (tick > 0) ratio = type(uint256).max / ratio;

            // this divides by 1<<32 rounding up to go from a Q128.128 to a Q128.96.
            // we then downcast because we know the result always fits within 160 bits due to our tick input constraint
            // we round up in the division so getTickAtSqrtRatio of the output price is always consistent
            sqrtPriceX96 = uint160((ratio >> 32) + (ratio % (1 << 32) == 0 ? 0 : 1));
        }
    }

    /// @notice Calculates the greatest tick value such that getRatioAtTick(tick) <= ratio
    /// @dev Throws in case sqrtPriceX96 < MIN_SQRT_RATIO, as MIN_SQRT_RATIO is the lowest value getRatioAtTick may
    /// ever return.
    /// @param sqrtPriceX96 The sqrt ratio for which to compute the tick as a Q64.96
    /// @return tick The greatest tick for which the ratio is less than or equal to the input ratio
    function getTickAtSqrtRatio(uint160 sqrtPriceX96) internal pure returns (int24 tick) {
        unchecked {
            // second inequality must be < because the price can never reach the price at the max tick
            if (!(sqrtPriceX96 >= MIN_SQRT_RATIO && sqrtPriceX96 < MAX_SQRT_RATIO)) revert R();
            uint256 ratio = uint256(sqrtPriceX96) << 32;

            uint256 r = ratio;
            uint256 msb = 0;

            assembly {
                let f := shl(7, gt(r, 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF))
                msb := or(msb, f)
                r := shr(f, r)
            }
            assembly {
                let f := shl(6, gt(r, 0xFFFFFFFFFFFFFFFF))
                msb := or(msb, f)
                r := shr(f, r)
            }
            assembly {
                let f := shl(5, gt(r, 0xFFFFFFFF))
                msb := or(msb, f)
                r := shr(f, r)
            }
            assembly {
                let f := shl(4, gt(r, 0xFFFF))
                msb := or(msb, f)
                r := shr(f, r)
            }
            assembly {
                let f := shl(3, gt(r, 0xFF))
                msb := or(msb, f)
                r := shr(f, r)
            }
            assembly {
                let f := shl(2, gt(r, 0xF))
                msb := or(msb, f)
                r := shr(f, r)
            }
            assembly {
                let f := shl(1, gt(r, 0x3))
                msb := or(msb, f)
                r := shr(f, r)
            }
            assembly {
                let f := gt(r, 0x1)
                msb := or(msb, f)
            }

            if (msb >= 128) r = ratio >> (msb - 127);
            else r = ratio << (127 - msb);

            int256 log_2 = (int256(msb) - 128) << 64;

            assembly {
                r := shr(127, mul(r, r))
                let f := shr(128, r)
                log_2 := or(log_2, shl(63, f))
                r := shr(f, r)
            }
            assembly {
                r := shr(127, mul(r, r))
                let f := shr(128, r)
                log_2 := or(log_2, shl(62, f))
                r := shr(f, r)
            }
            assembly {
                r := shr(127, mul(r, r))
                let f := shr(128, r)
                log_2 := or(log_2, shl(61, f))
                r := shr(f, r)
            }
            assembly {
                r := shr(127, mul(r, r))
                let f := shr(128, r)
                log_2 := or(log_2, shl(60, f))
                r := shr(f, r)
            }
            assembly {
                r := shr(127, mul(r, r))
                let f := shr(128, r)
                log_2 := or(log_2, shl(59, f))
                r := shr(f, r)
            }
            assembly {
                r := shr(127, mul(r, r))
                let f := shr(128, r)
                log_2 := or(log_2, shl(58, f))
                r := shr(f, r)
            }
            assembly {
                r := shr(127, mul(r, r))
                let f := shr(128, r)
                log_2 := or(log_2, shl(57, f))
                r := shr(f, r)
            }
            assembly {
                r := shr(127, mul(r, r))
                let f := shr(128, r)
                log_2 := or(log_2, shl(56, f))
                r := shr(f, r)
            }
            assembly {
                r := shr(127, mul(r, r))
                let f := shr(128, r)
                log_2 := or(log_2, shl(55, f))
                r := shr(f, r)
            }
            assembly {
                r := shr(127, mul(r, r))
                let f := shr(128, r)
                log_2 := or(log_2, shl(54, f))
                r := shr(f, r)
            }
            assembly {
                r := shr(127, mul(r, r))
                let f := shr(128, r)
                log_2 := or(log_2, shl(53, f))
                r := shr(f, r)
            }
            assembly {
                r := shr(127, mul(r, r))
                let f := shr(128, r)
                log_2 := or(log_2, shl(52, f))
                r := shr(f, r)
            }
            assembly {
                r := shr(127, mul(r, r))
                let f := shr(128, r)
                log_2 := or(log_2, shl(51, f))
                r := shr(f, r)
            }
            assembly {
                r := shr(127, mul(r, r))
                let f := shr(128, r)
                log_2 := or(log_2, shl(50, f))
            }

            int256 log_sqrt10001 = log_2 * 255738958999603826347141; // 128.128 number

            int24 tickLow = int24((log_sqrt10001 - 3402992956809132418596140100660247210) >> 128);
            int24 tickHi = int24((log_sqrt10001 + 291339464771989622907027621153398088495) >> 128);

            tick = tickLow == tickHi ? tickLow : getSqrtRatioAtTick(tickHi) <= sqrtPriceX96 ? tickHi : tickLow;
        }
    }
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.7.5;
pragma abicoder v2;

import '@uniswap/v3-core/contracts/interfaces/callback/IUniswapV3SwapCallback.sol';

/// @title Router token swapping functionality
/// @notice Functions for swapping tokens via Uniswap V3
interface ISwapRouter is IUniswapV3SwapCallback {
    struct ExactInputSingleParams {
        address tokenIn;
        address tokenOut;
        uint24 fee;
        address recipient;
        uint256 deadline;
        uint256 amountIn;
        uint256 amountOutMinimum;
        uint160 sqrtPriceLimitX96;
    }

    /// @notice Swaps `amountIn` of one token for as much as possible of another token
    /// @param params The parameters necessary for the swap, encoded as `ExactInputSingleParams` in calldata
    /// @return amountOut The amount of the received token
    function exactInputSingle(ExactInputSingleParams calldata params) external payable returns (uint256 amountOut);

    struct ExactInputParams {
        bytes path;
        address recipient;
        uint256 deadline;
        uint256 amountIn;
        uint256 amountOutMinimum;
    }

    /// @notice Swaps `amountIn` of one token for as much as possible of another along the specified path
    /// @param params The parameters necessary for the multi-hop swap, encoded as `ExactInputParams` in calldata
    /// @return amountOut The amount of the received token
    function exactInput(ExactInputParams calldata params) external payable returns (uint256 amountOut);

    struct ExactOutputSingleParams {
        address tokenIn;
        address tokenOut;
        uint24 fee;
        address recipient;
        uint256 deadline;
        uint256 amountOut;
        uint256 amountInMaximum;
        uint160 sqrtPriceLimitX96;
    }

    /// @notice Swaps as little as possible of one token for `amountOut` of another token
    /// @param params The parameters necessary for the swap, encoded as `ExactOutputSingleParams` in calldata
    /// @return amountIn The amount of the input token
    function exactOutputSingle(ExactOutputSingleParams calldata params) external payable returns (uint256 amountIn);

    struct ExactOutputParams {
        bytes path;
        address recipient;
        uint256 deadline;
        uint256 amountOut;
        uint256 amountInMaximum;
    }

    /// @notice Swaps as little as possible of one token for `amountOut` of another along the specified path (reversed)
    /// @param params The parameters necessary for the multi-hop swap, encoded as `ExactOutputParams` in calldata
    /// @return amountIn The amount of the input token
    function exactOutput(ExactOutputParams calldata params) external payable returns (uint256 amountIn);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 */
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 v5.0.0) (utils/introspection/IERC165.sol)

pragma solidity ^0.8.20;

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/Math.sol)

pragma solidity ^0.8.20;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    /**
     * @dev Muldiv operation overflow.
     */
    error MathOverflowedMulDiv();

    enum Rounding {
        Floor, // Toward negative infinity
        Ceil, // Toward positive infinity
        Trunc, // Toward zero
        Expand // Away from zero
    }

    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, with an overflow flag.
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b > a) return (false, 0);
            return (true, a - b);
        }
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
            // benefit is lost if 'b' is also tested.
            // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
            if (a == 0) return (true, 0);
            uint256 c = a * b;
            if (c / a != b) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a / b);
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a % b);
        }
    }

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

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

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds towards infinity instead
     * of rounding towards zero.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        if (b == 0) {
            // Guarantee the same behavior as in a regular Solidity division.
            return a / b;
        }

        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

    /**
     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or
     * denominator == 0.
     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by
     * Uniswap Labs also under MIT license.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
        unchecked {
            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2^256 + prod0.
            uint256 prod0 = x * y; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                // Solidity will revert if denominator == 0, unlike the div opcode on its own.
                // The surrounding unchecked block does not change this fact.
                // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            if (denominator <= prod1) {
                revert MathOverflowedMulDiv();
            }

            ///////////////////////////////////////////////
            // 512 by 256 division.
            ///////////////////////////////////////////////

            // Make division exact by subtracting the remainder from [prod1 prod0].
            uint256 remainder;
            assembly {
                // Compute remainder using mulmod.
                remainder := mulmod(x, y, denominator)

                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator and compute largest power of two divisor of denominator.
            // Always >= 1. See https://cs.stackexchange.com/q/138556/92363.

            uint256 twos = denominator & (0 - denominator);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

                // Divide [prod1 prod0] by twos.
                prod0 := div(prod0, twos)

                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                twos := add(div(sub(0, twos), twos), 1)
            }

            // Shift in bits from prod1 into prod0.
            prod0 |= prod1 * twos;

            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv = 1 mod 2^4.
            uint256 inverse = (3 * denominator) ^ 2;

            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also
            // works in modular arithmetic, doubling the correct bits in each step.
            inverse *= 2 - denominator * inverse; // inverse mod 2^8
            inverse *= 2 - denominator * inverse; // inverse mod 2^16
            inverse *= 2 - denominator * inverse; // inverse mod 2^32
            inverse *= 2 - denominator * inverse; // inverse mod 2^64
            inverse *= 2 - denominator * inverse; // inverse mod 2^128
            inverse *= 2 - denominator * inverse; // inverse mod 2^256

            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
            // is no longer required.
            result = prod0 * inverse;
            return result;
        }
    }

    /**
     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
        uint256 result = mulDiv(x, y, denominator);
        if (unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0) {
            result += 1;
        }
        return result;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded
     * towards zero.
     *
     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        //
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
        // into the expected uint128 result.
        unchecked {
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            return min(result, a / result);
        }
    }

    /**
     * @notice Calculates sqrt(a), following the selected rounding direction.
     */
    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = sqrt(a);
            return result + (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2 of a positive value rounded towards zero.
     * Returns 0 if given 0.
     */
    function log2(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 128;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 64;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 32;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 16;
            }
            if (value >> 8 > 0) {
                value >>= 8;
                result += 8;
            }
            if (value >> 4 > 0) {
                value >>= 4;
                result += 4;
            }
            if (value >> 2 > 0) {
                value >>= 2;
                result += 2;
            }
            if (value >> 1 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log2(value);
            return result + (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10 of a positive value rounded towards zero.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >= 10 ** 64) {
                value /= 10 ** 64;
                result += 64;
            }
            if (value >= 10 ** 32) {
                value /= 10 ** 32;
                result += 32;
            }
            if (value >= 10 ** 16) {
                value /= 10 ** 16;
                result += 16;
            }
            if (value >= 10 ** 8) {
                value /= 10 ** 8;
                result += 8;
            }
            if (value >= 10 ** 4) {
                value /= 10 ** 4;
                result += 4;
            }
            if (value >= 10 ** 2) {
                value /= 10 ** 2;
                result += 2;
            }
            if (value >= 10 ** 1) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log10(value);
            return result + (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256 of a positive value rounded towards zero.
     * Returns 0 if given 0.
     *
     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
     */
    function log256(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 16;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 8;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 4;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 2;
            }
            if (value >> 8 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 256, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (unsignedRoundsUp(rounding) && 1 << (result << 3) < value ? 1 : 0);
        }
    }

    /**
     * @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers.
     */
    function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) {
        return uint8(rounding) % 2 == 1;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/SignedMath.sol)

pragma solidity ^0.8.20;

/**
 * @dev Standard signed math utilities missing in the Solidity language.
 */
library SignedMath {
    /**
     * @dev Returns the largest of two signed numbers.
     */
    function max(int256 a, int256 b) internal pure returns (int256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two signed numbers.
     */
    function min(int256 a, int256 b) internal pure returns (int256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two signed numbers without overflow.
     * The result is rounded towards zero.
     */
    function average(int256 a, int256 b) internal pure returns (int256) {
        // Formula from the book "Hacker's Delight"
        int256 x = (a & b) + ((a ^ b) >> 1);
        return x + (int256(uint256(x) >> 255) & (a ^ b));
    }

    /**
     * @dev Returns the absolute unsigned value of a signed value.
     */
    function abs(int256 n) internal pure returns (uint256) {
        unchecked {
            // must be unchecked in order to support `n = type(int256).min`
            return uint256(n >= 0 ? n : -n);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable2Step.sol)

pragma solidity ^0.8.20;

import {Ownable} from "./Ownable.sol";

/**
 * @dev Contract module which provides access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * The initial owner is specified at deployment time in the constructor for `Ownable`. This
 * can later be changed with {transferOwnership} and {acceptOwnership}.
 *
 * This module is used through inheritance. It will make available all functions
 * from parent (Ownable).
 */
abstract contract Ownable2Step is Ownable {
    address private _pendingOwner;

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

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

    /**
     * @dev Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one.
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual override onlyOwner {
        _pendingOwner = newOwner;
        emit OwnershipTransferStarted(owner(), newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`) and deletes any pending owner.
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual override {
        delete _pendingOwner;
        super._transferOwnership(newOwner);
    }

    /**
     * @dev The new owner accepts the ownership transfer.
     */
    function acceptOwnership() public virtual {
        address sender = _msgSender();
        if (pendingOwner() != sender) {
            revert OwnableUnauthorizedAccount(sender);
        }
        _transferOwnership(sender);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.27;

interface IDragonX {
    function updateVault() external;
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;

/// @title Pool state that never changes
/// @notice These parameters are fixed for a pool forever, i.e., the methods will always return the same values
interface IUniswapV3PoolImmutables {
    /// @notice The contract that deployed the pool, which must adhere to the IUniswapV3Factory interface
    /// @return The contract address
    function factory() external view returns (address);

    /// @notice The first of the two tokens of the pool, sorted by address
    /// @return The token contract address
    function token0() external view returns (address);

    /// @notice The second of the two tokens of the pool, sorted by address
    /// @return The token contract address
    function token1() external view returns (address);

    /// @notice The pool's fee in hundredths of a bip, i.e. 1e-6
    /// @return The fee
    function fee() external view returns (uint24);

    /// @notice The pool tick spacing
    /// @dev Ticks can only be used at multiples of this value, minimum of 1 and always positive
    /// e.g.: a tickSpacing of 3 means ticks can be initialized every 3rd tick, i.e., ..., -6, -3, 0, 3, 6, ...
    /// This value is an int24 to avoid casting even though it is always positive.
    /// @return The tick spacing
    function tickSpacing() external view returns (int24);

    /// @notice The maximum amount of position liquidity that can use any tick in the range
    /// @dev This parameter is enforced per tick to prevent liquidity from overflowing a uint128 at any point, and
    /// also prevents out-of-range liquidity from being used to prevent adding in-range liquidity to a pool
    /// @return The max amount of liquidity per tick
    function maxLiquidityPerTick() external view returns (uint128);
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;

/// @title Pool state that can change
/// @notice These methods compose the pool's state, and can change with any frequency including multiple times
/// per transaction
interface IUniswapV3PoolState {
    /// @notice The 0th storage slot in the pool stores many values, and is exposed as a single method to save gas
    /// when accessed externally.
    /// @return sqrtPriceX96 The current price of the pool as a sqrt(token1/token0) Q64.96 value
    /// @return tick The current tick of the pool, i.e. according to the last tick transition that was run.
    /// This value may not always be equal to SqrtTickMath.getTickAtSqrtRatio(sqrtPriceX96) if the price is on a tick
    /// boundary.
    /// @return observationIndex The index of the last oracle observation that was written,
    /// @return observationCardinality The current maximum number of observations stored in the pool,
    /// @return observationCardinalityNext The next maximum number of observations, to be updated when the observation.
    /// @return feeProtocol The protocol fee for both tokens of the pool.
    /// Encoded as two 4 bit values, where the protocol fee of token1 is shifted 4 bits and the protocol fee of token0
    /// is the lower 4 bits. Used as the denominator of a fraction of the swap fee, e.g. 4 means 1/4th of the swap fee.
    /// unlocked Whether the pool is currently locked to reentrancy
    function slot0()
        external
        view
        returns (
            uint160 sqrtPriceX96,
            int24 tick,
            uint16 observationIndex,
            uint16 observationCardinality,
            uint16 observationCardinalityNext,
            uint8 feeProtocol,
            bool unlocked
        );

    /// @notice The fee growth as a Q128.128 fees of token0 collected per unit of liquidity for the entire life of the pool
    /// @dev This value can overflow the uint256
    function feeGrowthGlobal0X128() external view returns (uint256);

    /// @notice The fee growth as a Q128.128 fees of token1 collected per unit of liquidity for the entire life of the pool
    /// @dev This value can overflow the uint256
    function feeGrowthGlobal1X128() external view returns (uint256);

    /// @notice The amounts of token0 and token1 that are owed to the protocol
    /// @dev Protocol fees will never exceed uint128 max in either token
    function protocolFees() external view returns (uint128 token0, uint128 token1);

    /// @notice The currently in range liquidity available to the pool
    /// @dev This value has no relationship to the total liquidity across all ticks
    /// @return The liquidity at the current price of the pool
    function liquidity() external view returns (uint128);

    /// @notice Look up information about a specific tick in the pool
    /// @param tick The tick to look up
    /// @return liquidityGross the total amount of position liquidity that uses the pool either as tick lower or
    /// tick upper
    /// @return liquidityNet how much liquidity changes when the pool price crosses the tick,
    /// @return feeGrowthOutside0X128 the fee growth on the other side of the tick from the current tick in token0,
    /// @return feeGrowthOutside1X128 the fee growth on the other side of the tick from the current tick in token1,
    /// @return tickCumulativeOutside the cumulative tick value on the other side of the tick from the current tick
    /// @return secondsPerLiquidityOutsideX128 the seconds spent per liquidity on the other side of the tick from the current tick,
    /// @return secondsOutside the seconds spent on the other side of the tick from the current tick,
    /// @return initialized Set to true if the tick is initialized, i.e. liquidityGross is greater than 0, otherwise equal to false.
    /// Outside values can only be used if the tick is initialized, i.e. if liquidityGross is greater than 0.
    /// In addition, these values are only relative and must be used only in comparison to previous snapshots for
    /// a specific position.
    function ticks(int24 tick)
        external
        view
        returns (
            uint128 liquidityGross,
            int128 liquidityNet,
            uint256 feeGrowthOutside0X128,
            uint256 feeGrowthOutside1X128,
            int56 tickCumulativeOutside,
            uint160 secondsPerLiquidityOutsideX128,
            uint32 secondsOutside,
            bool initialized
        );

    /// @notice Returns 256 packed tick initialized boolean values. See TickBitmap for more information
    function tickBitmap(int16 wordPosition) external view returns (uint256);

    /// @notice Returns the information about a position by the position's key
    /// @param key The position's key is a hash of a preimage composed by the owner, tickLower and tickUpper
    /// @return liquidity The amount of liquidity in the position,
    /// @return feeGrowthInside0LastX128 fee growth of token0 inside the tick range as of the last mint/burn/poke,
    /// @return feeGrowthInside1LastX128 fee growth of token1 inside the tick range as of the last mint/burn/poke,
    /// @return tokensOwed0 the computed amount of token0 owed to the position as of the last mint/burn/poke,
    /// @return tokensOwed1 the computed amount of token1 owed to the position as of the last mint/burn/poke
    function positions(bytes32 key)
        external
        view
        returns (
            uint128 liquidity,
            uint256 feeGrowthInside0LastX128,
            uint256 feeGrowthInside1LastX128,
            uint128 tokensOwed0,
            uint128 tokensOwed1
        );

    /// @notice Returns data about a specific observation index
    /// @param index The element of the observations array to fetch
    /// @dev You most likely want to use #observe() instead of this method to get an observation as of some amount of time
    /// ago, rather than at a specific index in the array.
    /// @return blockTimestamp The timestamp of the observation,
    /// @return tickCumulative the tick multiplied by seconds elapsed for the life of the pool as of the observation timestamp,
    /// @return secondsPerLiquidityCumulativeX128 the seconds per in range liquidity for the life of the pool as of the observation timestamp,
    /// @return initialized whether the observation has been initialized and the values are safe to use
    function observations(uint256 index)
        external
        view
        returns (
            uint32 blockTimestamp,
            int56 tickCumulative,
            uint160 secondsPerLiquidityCumulativeX128,
            bool initialized
        );
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;

/// @title Pool state that is not stored
/// @notice Contains view functions to provide information about the pool that is computed rather than stored on the
/// blockchain. The functions here may have variable gas costs.
interface IUniswapV3PoolDerivedState {
    /// @notice Returns the cumulative tick and liquidity as of each timestamp `secondsAgo` from the current block timestamp
    /// @dev To get a time weighted average tick or liquidity-in-range, you must call this with two values, one representing
    /// the beginning of the period and another for the end of the period. E.g., to get the last hour time-weighted average tick,
    /// you must call it with secondsAgos = [3600, 0].
    /// @dev The time weighted average tick represents the geometric time weighted average price of the pool, in
    /// log base sqrt(1.0001) of token1 / token0. The TickMath library can be used to go from a tick value to a ratio.
    /// @param secondsAgos From how long ago each cumulative tick and liquidity value should be returned
    /// @return tickCumulatives Cumulative tick values as of each `secondsAgos` from the current block timestamp
    /// @return secondsPerLiquidityCumulativeX128s Cumulative seconds per liquidity-in-range value as of each `secondsAgos` from the current block
    /// timestamp
    function observe(uint32[] calldata secondsAgos)
        external
        view
        returns (int56[] memory tickCumulatives, uint160[] memory secondsPerLiquidityCumulativeX128s);

    /// @notice Returns a snapshot of the tick cumulative, seconds per liquidity and seconds inside a tick range
    /// @dev Snapshots must only be compared to other snapshots, taken over a period for which a position existed.
    /// I.e., snapshots cannot be compared if a position is not held for the entire period between when the first
    /// snapshot is taken and the second snapshot is taken.
    /// @param tickLower The lower tick of the range
    /// @param tickUpper The upper tick of the range
    /// @return tickCumulativeInside The snapshot of the tick accumulator for the range
    /// @return secondsPerLiquidityInsideX128 The snapshot of seconds per liquidity for the range
    /// @return secondsInside The snapshot of seconds per liquidity for the range
    function snapshotCumulativesInside(int24 tickLower, int24 tickUpper)
        external
        view
        returns (
            int56 tickCumulativeInside,
            uint160 secondsPerLiquidityInsideX128,
            uint32 secondsInside
        );
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;

/// @title Permissionless pool actions
/// @notice Contains pool methods that can be called by anyone
interface IUniswapV3PoolActions {
    /// @notice Sets the initial price for the pool
    /// @dev Price is represented as a sqrt(amountToken1/amountToken0) Q64.96 value
    /// @param sqrtPriceX96 the initial sqrt price of the pool as a Q64.96
    function initialize(uint160 sqrtPriceX96) external;

    /// @notice Adds liquidity for the given recipient/tickLower/tickUpper position
    /// @dev The caller of this method receives a callback in the form of IUniswapV3MintCallback#uniswapV3MintCallback
    /// in which they must pay any token0 or token1 owed for the liquidity. The amount of token0/token1 due depends
    /// on tickLower, tickUpper, the amount of liquidity, and the current price.
    /// @param recipient The address for which the liquidity will be created
    /// @param tickLower The lower tick of the position in which to add liquidity
    /// @param tickUpper The upper tick of the position in which to add liquidity
    /// @param amount The amount of liquidity to mint
    /// @param data Any data that should be passed through to the callback
    /// @return amount0 The amount of token0 that was paid to mint the given amount of liquidity. Matches the value in the callback
    /// @return amount1 The amount of token1 that was paid to mint the given amount of liquidity. Matches the value in the callback
    function mint(
        address recipient,
        int24 tickLower,
        int24 tickUpper,
        uint128 amount,
        bytes calldata data
    ) external returns (uint256 amount0, uint256 amount1);

    /// @notice Collects tokens owed to a position
    /// @dev Does not recompute fees earned, which must be done either via mint or burn of any amount of liquidity.
    /// Collect must be called by the position owner. To withdraw only token0 or only token1, amount0Requested or
    /// amount1Requested may be set to zero. To withdraw all tokens owed, caller may pass any value greater than the
    /// actual tokens owed, e.g. type(uint128).max. Tokens owed may be from accumulated swap fees or burned liquidity.
    /// @param recipient The address which should receive the fees collected
    /// @param tickLower The lower tick of the position for which to collect fees
    /// @param tickUpper The upper tick of the position for which to collect fees
    /// @param amount0Requested How much token0 should be withdrawn from the fees owed
    /// @param amount1Requested How much token1 should be withdrawn from the fees owed
    /// @return amount0 The amount of fees collected in token0
    /// @return amount1 The amount of fees collected in token1
    function collect(
        address recipient,
        int24 tickLower,
        int24 tickUpper,
        uint128 amount0Requested,
        uint128 amount1Requested
    ) external returns (uint128 amount0, uint128 amount1);

    /// @notice Burn liquidity from the sender and account tokens owed for the liquidity to the position
    /// @dev Can be used to trigger a recalculation of fees owed to a position by calling with an amount of 0
    /// @dev Fees must be collected separately via a call to #collect
    /// @param tickLower The lower tick of the position for which to burn liquidity
    /// @param tickUpper The upper tick of the position for which to burn liquidity
    /// @param amount How much liquidity to burn
    /// @return amount0 The amount of token0 sent to the recipient
    /// @return amount1 The amount of token1 sent to the recipient
    function burn(
        int24 tickLower,
        int24 tickUpper,
        uint128 amount
    ) external returns (uint256 amount0, uint256 amount1);

    /// @notice Swap token0 for token1, or token1 for token0
    /// @dev The caller of this method receives a callback in the form of IUniswapV3SwapCallback#uniswapV3SwapCallback
    /// @param recipient The address to receive the output of the swap
    /// @param zeroForOne The direction of the swap, true for token0 to token1, false for token1 to token0
    /// @param amountSpecified The amount of the swap, which implicitly configures the swap as exact input (positive), or exact output (negative)
    /// @param sqrtPriceLimitX96 The Q64.96 sqrt price limit. If zero for one, the price cannot be less than this
    /// value after the swap. If one for zero, the price cannot be greater than this value after the swap
    /// @param data Any data to be passed through to the callback
    /// @return amount0 The delta of the balance of token0 of the pool, exact when negative, minimum when positive
    /// @return amount1 The delta of the balance of token1 of the pool, exact when negative, minimum when positive
    function swap(
        address recipient,
        bool zeroForOne,
        int256 amountSpecified,
        uint160 sqrtPriceLimitX96,
        bytes calldata data
    ) external returns (int256 amount0, int256 amount1);

    /// @notice Receive token0 and/or token1 and pay it back, plus a fee, in the callback
    /// @dev The caller of this method receives a callback in the form of IUniswapV3FlashCallback#uniswapV3FlashCallback
    /// @dev Can be used to donate underlying tokens pro-rata to currently in-range liquidity providers by calling
    /// with 0 amount{0,1} and sending the donation amount(s) from the callback
    /// @param recipient The address which will receive the token0 and token1 amounts
    /// @param amount0 The amount of token0 to send
    /// @param amount1 The amount of token1 to send
    /// @param data Any data to be passed through to the callback
    function flash(
        address recipient,
        uint256 amount0,
        uint256 amount1,
        bytes calldata data
    ) external;

    /// @notice Increase the maximum number of price and liquidity observations that this pool will store
    /// @dev This method is no-op if the pool already has an observationCardinalityNext greater than or equal to
    /// the input observationCardinalityNext.
    /// @param observationCardinalityNext The desired minimum number of observations for the pool to store
    function increaseObservationCardinalityNext(uint16 observationCardinalityNext) external;
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;

/// @title Permissioned pool actions
/// @notice Contains pool methods that may only be called by the factory owner
interface IUniswapV3PoolOwnerActions {
    /// @notice Set the denominator of the protocol's % share of the fees
    /// @param feeProtocol0 new protocol fee for token0 of the pool
    /// @param feeProtocol1 new protocol fee for token1 of the pool
    function setFeeProtocol(uint8 feeProtocol0, uint8 feeProtocol1) external;

    /// @notice Collect the protocol fee accrued to the pool
    /// @param recipient The address to which collected protocol fees should be sent
    /// @param amount0Requested The maximum amount of token0 to send, can be 0 to collect fees in only token1
    /// @param amount1Requested The maximum amount of token1 to send, can be 0 to collect fees in only token0
    /// @return amount0 The protocol fee collected in token0
    /// @return amount1 The protocol fee collected in token1
    function collectProtocol(
        address recipient,
        uint128 amount0Requested,
        uint128 amount1Requested
    ) external returns (uint128 amount0, uint128 amount1);
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;

/// @title Errors emitted by a pool
/// @notice Contains all events emitted by the pool
interface IUniswapV3PoolErrors {
    error LOK();
    error TLU();
    error TLM();
    error TUM();
    error AI();
    error M0();
    error M1();
    error AS();
    error IIA();
    error L();
    error F0();
    error F1();
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;

/// @title Events emitted by a pool
/// @notice Contains all events emitted by the pool
interface IUniswapV3PoolEvents {
    /// @notice Emitted exactly once by a pool when #initialize is first called on the pool
    /// @dev Mint/Burn/Swap cannot be emitted by the pool before Initialize
    /// @param sqrtPriceX96 The initial sqrt price of the pool, as a Q64.96
    /// @param tick The initial tick of the pool, i.e. log base 1.0001 of the starting price of the pool
    event Initialize(uint160 sqrtPriceX96, int24 tick);

    /// @notice Emitted when liquidity is minted for a given position
    /// @param sender The address that minted the liquidity
    /// @param owner The owner of the position and recipient of any minted liquidity
    /// @param tickLower The lower tick of the position
    /// @param tickUpper The upper tick of the position
    /// @param amount The amount of liquidity minted to the position range
    /// @param amount0 How much token0 was required for the minted liquidity
    /// @param amount1 How much token1 was required for the minted liquidity
    event Mint(
        address sender,
        address indexed owner,
        int24 indexed tickLower,
        int24 indexed tickUpper,
        uint128 amount,
        uint256 amount0,
        uint256 amount1
    );

    /// @notice Emitted when fees are collected by the owner of a position
    /// @dev Collect events may be emitted with zero amount0 and amount1 when the caller chooses not to collect fees
    /// @param owner The owner of the position for which fees are collected
    /// @param tickLower The lower tick of the position
    /// @param tickUpper The upper tick of the position
    /// @param amount0 The amount of token0 fees collected
    /// @param amount1 The amount of token1 fees collected
    event Collect(
        address indexed owner,
        address recipient,
        int24 indexed tickLower,
        int24 indexed tickUpper,
        uint128 amount0,
        uint128 amount1
    );

    /// @notice Emitted when a position's liquidity is removed
    /// @dev Does not withdraw any fees earned by the liquidity position, which must be withdrawn via #collect
    /// @param owner The owner of the position for which liquidity is removed
    /// @param tickLower The lower tick of the position
    /// @param tickUpper The upper tick of the position
    /// @param amount The amount of liquidity to remove
    /// @param amount0 The amount of token0 withdrawn
    /// @param amount1 The amount of token1 withdrawn
    event Burn(
        address indexed owner,
        int24 indexed tickLower,
        int24 indexed tickUpper,
        uint128 amount,
        uint256 amount0,
        uint256 amount1
    );

    /// @notice Emitted by the pool for any swaps between token0 and token1
    /// @param sender The address that initiated the swap call, and that received the callback
    /// @param recipient The address that received the output of the swap
    /// @param amount0 The delta of the token0 balance of the pool
    /// @param amount1 The delta of the token1 balance of the pool
    /// @param sqrtPriceX96 The sqrt(price) of the pool after the swap, as a Q64.96
    /// @param liquidity The liquidity of the pool after the swap
    /// @param tick The log base 1.0001 of price of the pool after the swap
    event Swap(
        address indexed sender,
        address indexed recipient,
        int256 amount0,
        int256 amount1,
        uint160 sqrtPriceX96,
        uint128 liquidity,
        int24 tick
    );

    /// @notice Emitted by the pool for any flashes of token0/token1
    /// @param sender The address that initiated the swap call, and that received the callback
    /// @param recipient The address that received the tokens from flash
    /// @param amount0 The amount of token0 that was flashed
    /// @param amount1 The amount of token1 that was flashed
    /// @param paid0 The amount of token0 paid for the flash, which can exceed the amount0 plus the fee
    /// @param paid1 The amount of token1 paid for the flash, which can exceed the amount1 plus the fee
    event Flash(
        address indexed sender,
        address indexed recipient,
        uint256 amount0,
        uint256 amount1,
        uint256 paid0,
        uint256 paid1
    );

    /// @notice Emitted by the pool for increases to the number of observations that can be stored
    /// @dev observationCardinalityNext is not the observation cardinality until an observation is written at the index
    /// just before a mint/swap/burn.
    /// @param observationCardinalityNextOld The previous value of the next observation cardinality
    /// @param observationCardinalityNextNew The updated value of the next observation cardinality
    event IncreaseObservationCardinalityNext(
        uint16 observationCardinalityNextOld,
        uint16 observationCardinalityNextNew
    );

    /// @notice Emitted when the protocol fee is changed by the pool
    /// @param feeProtocol0Old The previous value of the token0 protocol fee
    /// @param feeProtocol1Old The previous value of the token1 protocol fee
    /// @param feeProtocol0New The updated value of the token0 protocol fee
    /// @param feeProtocol1New The updated value of the token1 protocol fee
    event SetFeeProtocol(uint8 feeProtocol0Old, uint8 feeProtocol1Old, uint8 feeProtocol0New, uint8 feeProtocol1New);

    /// @notice Emitted when the collected protocol fees are withdrawn by the factory owner
    /// @param sender The address that collects the protocol fees
    /// @param recipient The address that receives the collected protocol fees
    /// @param amount0 The amount of token0 protocol fees that is withdrawn
    /// @param amount0 The amount of token1 protocol fees that is withdrawn
    event CollectProtocol(address indexed sender, address indexed recipient, uint128 amount0, uint128 amount1);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/extensions/IERC721Enumerable.sol)

pragma solidity ^0.8.20;

import {IERC721} from "../IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Enumerable is IERC721 {
    /**
     * @dev Returns the total amount of tokens stored by the contract.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns a token ID owned by `owner` at a given `index` of its token list.
     * Use along with {balanceOf} to enumerate all of ``owner``'s tokens.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256);

    /**
     * @dev Returns a token ID at a given `index` of all the tokens stored by the contract.
     * Use along with {totalSupply} to enumerate all tokens.
     */
    function tokenByIndex(uint256 index) external view returns (uint256);
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.7.5;
pragma abicoder v2;

/// @title Creates and initializes V3 Pools
/// @notice Provides a method for creating and initializing a pool, if necessary, for bundling with other methods that
/// require the pool to exist.
interface IPoolInitializer {
    /// @notice Creates a new pool if it does not exist, then initializes if not initialized
    /// @dev This method can be bundled with others via IMulticall for the first action (e.g. mint) performed against a pool
    /// @param token0 The contract address of token0 of the pool
    /// @param token1 The contract address of token1 of the pool
    /// @param fee The fee amount of the v3 pool for the specified token pair
    /// @param sqrtPriceX96 The initial square root price of the pool as a Q64.96 value
    /// @return pool Returns the pool address based on the pair of tokens and fee, will return the newly created pool address if necessary
    function createAndInitializePoolIfNecessary(
        address token0,
        address token1,
        uint24 fee,
        uint160 sqrtPriceX96
    ) external payable returns (address pool);
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.7.5;

import '@openzeppelin/contracts/token/ERC721/IERC721.sol';

/// @title ERC721 with permit
/// @notice Extension to ERC721 that includes a permit function for signature based approvals
interface IERC721Permit is IERC721 {
    /// @notice The permit typehash used in the permit signature
    /// @return The typehash for the permit
    function PERMIT_TYPEHASH() external pure returns (bytes32);

    /// @notice The domain separator used in the permit signature
    /// @return The domain seperator used in encoding of permit signature
    function DOMAIN_SEPARATOR() external view returns (bytes32);

    /// @notice Approve of a specific token ID for spending by spender via signature
    /// @param spender The account that is being approved
    /// @param tokenId The ID of the token that is being approved for spending
    /// @param deadline The deadline timestamp by which the call must be mined for the approve to work
    /// @param v Must produce valid secp256k1 signature from the holder along with `r` and `s`
    /// @param r Must produce valid secp256k1 signature from the holder along with `v` and `s`
    /// @param s Must produce valid secp256k1 signature from the holder along with `r` and `v`
    function permit(
        address spender,
        uint256 tokenId,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external payable;
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.7.5;

/// @title Periphery Payments
/// @notice Functions to ease deposits and withdrawals of ETH
interface IPeripheryPayments {
    /// @notice Unwraps the contract's WETH9 balance and sends it to recipient as ETH.
    /// @dev The amountMinimum parameter prevents malicious contracts from stealing WETH9 from users.
    /// @param amountMinimum The minimum amount of WETH9 to unwrap
    /// @param recipient The address receiving ETH
    function unwrapWETH9(uint256 amountMinimum, address recipient) external payable;

    /// @notice Refunds any ETH balance held by this contract to the `msg.sender`
    /// @dev Useful for bundling with mint or increase liquidity that uses ether, or exact output swaps
    /// that use ether for the input amount
    function refundETH() external payable;

    /// @notice Transfers the full amount of a token held by this contract to recipient
    /// @dev The amountMinimum parameter prevents malicious contracts from stealing the token from users
    /// @param token The contract address of the token which will be transferred to `recipient`
    /// @param amountMinimum The minimum amount of token required for a transfer
    /// @param recipient The destination address of the token
    function sweepToken(
        address token,
        uint256 amountMinimum,
        address recipient
    ) external payable;
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;

/// @title Immutable state
/// @notice Functions that return immutable state of the router
interface IPeripheryImmutableState {
    /// @return Returns the address of the Uniswap V3 factory
    function factory() external view returns (address);

    /// @return Returns the address of WETH9
    function WETH9() external view returns (address);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {VRFV2PlusClient} from "../libraries/VRFV2PlusClient.sol";
import {IVRFSubscriptionV2Plus} from "./IVRFSubscriptionV2Plus.sol";

// Interface that enables consumers of VRFCoordinatorV2Plus to be future-proof for upgrades
// This interface is supported by subsequent versions of VRFCoordinatorV2Plus
interface IVRFCoordinatorV2Plus is IVRFSubscriptionV2Plus {
  /**
   * @notice Request a set of random words.
   * @param req - a struct containing following fields for randomness request:
   * keyHash - Corresponds to a particular oracle job which uses
   * that key for generating the VRF proof. Different keyHash's have different gas price
   * ceilings, so you can select a specific one to bound your maximum per request cost.
   * subId  - The ID of the VRF subscription. Must be funded
   * with the minimum subscription balance required for the selected keyHash.
   * requestConfirmations - How many blocks you'd like the
   * oracle to wait before responding to the request. See SECURITY CONSIDERATIONS
   * for why you may want to request more. The acceptable range is
   * [minimumRequestBlockConfirmations, 200].
   * callbackGasLimit - How much gas you'd like to receive in your
   * fulfillRandomWords callback. Note that gasleft() inside fulfillRandomWords
   * may be slightly less than this amount because of gas used calling the function
   * (argument decoding etc.), so you may need to request slightly more than you expect
   * to have inside fulfillRandomWords. The acceptable range is
   * [0, maxGasLimit]
   * numWords - The number of uint256 random values you'd like to receive
   * in your fulfillRandomWords callback. Note these numbers are expanded in a
   * secure way by the VRFCoordinator from a single random value supplied by the oracle.
   * extraArgs - abi-encoded extra args
   * @return requestId - A unique identifier of the request. Can be used to match
   * a request to a response in fulfillRandomWords.
   */
  function requestRandomWords(VRFV2PlusClient.RandomWordsRequest calldata req) external returns (uint256 requestId);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

/// @notice The IVRFMigratableConsumerV2Plus interface defines the
/// @notice method required to be implemented by all V2Plus consumers.
/// @dev This interface is designed to be used in VRFConsumerBaseV2Plus.
interface IVRFMigratableConsumerV2Plus {
  event CoordinatorSet(address vrfCoordinator);

  /// @notice Sets the VRF Coordinator address
  /// @notice This method should only be callable by the coordinator or contract owner
  function setCoordinator(address vrfCoordinator) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {ConfirmedOwnerWithProposal} from "./ConfirmedOwnerWithProposal.sol";

/// @title The ConfirmedOwner contract
/// @notice A contract with helpers for basic contract ownership.
contract ConfirmedOwner is ConfirmedOwnerWithProposal {
  constructor(address newOwner) ConfirmedOwnerWithProposal(newOwner, address(0)) {}
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;

/// @title Callback for IUniswapV3PoolActions#swap
/// @notice Any contract that calls IUniswapV3PoolActions#swap must implement this interface
interface IUniswapV3SwapCallback {
    /// @notice Called to `msg.sender` after executing a swap via IUniswapV3Pool#swap.
    /// @dev In the implementation you must pay the pool tokens owed for the swap.
    /// The caller of this method must be checked to be a UniswapV3Pool deployed by the canonical UniswapV3Factory.
    /// amount0Delta and amount1Delta can both be 0 if no tokens were swapped.
    /// @param amount0Delta The amount of token0 that was sent (negative) or must be received (positive) by the pool by
    /// the end of the swap. If positive, the callback must send that amount of token0 to the pool.
    /// @param amount1Delta The amount of token1 that was sent (negative) or must be received (positive) by the pool by
    /// the end of the swap. If positive, the callback must send that amount of token1 to the pool.
    /// @param data Any data passed through by the caller via the IUniswapV3PoolActions#swap call
    function uniswapV3SwapCallback(
        int256 amount0Delta,
        int256 amount1Delta,
        bytes calldata data
    ) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

/// @notice The IVRFSubscriptionV2Plus interface defines the subscription
/// @notice related methods implemented by the V2Plus coordinator.
interface IVRFSubscriptionV2Plus {
  /**
   * @notice Add a consumer to a VRF subscription.
   * @param subId - ID of the subscription
   * @param consumer - New consumer which can use the subscription
   */
  function addConsumer(uint256 subId, address consumer) external;

  /**
   * @notice Remove a consumer from a VRF subscription.
   * @param subId - ID of the subscription
   * @param consumer - Consumer to remove from the subscription
   */
  function removeConsumer(uint256 subId, address consumer) external;

  /**
   * @notice Cancel a subscription
   * @param subId - ID of the subscription
   * @param to - Where to send the remaining LINK to
   */
  function cancelSubscription(uint256 subId, address to) external;

  /**
   * @notice Accept subscription owner transfer.
   * @param subId - ID of the subscription
   * @dev will revert if original owner of subId has
   * not requested that msg.sender become the new owner.
   */
  function acceptSubscriptionOwnerTransfer(uint256 subId) external;

  /**
   * @notice Request subscription owner transfer.
   * @param subId - ID of the subscription
   * @param newOwner - proposed new owner of the subscription
   */
  function requestSubscriptionOwnerTransfer(uint256 subId, address newOwner) external;

  /**
   * @notice Create a VRF subscription.
   * @return subId - A unique subscription id.
   * @dev You can manage the consumer set dynamically with addConsumer/removeConsumer.
   * @dev Note to fund the subscription with LINK, use transferAndCall. For example
   * @dev  LINKTOKEN.transferAndCall(
   * @dev    address(COORDINATOR),
   * @dev    amount,
   * @dev    abi.encode(subId));
   * @dev Note to fund the subscription with Native, use fundSubscriptionWithNative. Be sure
   * @dev  to send Native with the call, for example:
   * @dev COORDINATOR.fundSubscriptionWithNative{value: amount}(subId);
   */
  function createSubscription() external returns (uint256 subId);

  /**
   * @notice Get a VRF subscription.
   * @param subId - ID of the subscription
   * @return balance - LINK balance of the subscription in juels.
   * @return nativeBalance - native balance of the subscription in wei.
   * @return reqCount - Requests count of subscription.
   * @return owner - owner of the subscription.
   * @return consumers - list of consumer address which are able to use this subscription.
   */
  function getSubscription(
    uint256 subId
  )
    external
    view
    returns (uint96 balance, uint96 nativeBalance, uint64 reqCount, address owner, address[] memory consumers);

  /*
   * @notice Check to see if there exists a request commitment consumers
   * for all consumers and keyhashes for a given sub.
   * @param subId - ID of the subscription
   * @return true if there exists at least one unfulfilled request for the subscription, false
   * otherwise.
   */
  function pendingRequestExists(uint256 subId) external view returns (bool);

  /**
   * @notice Paginate through all active VRF subscriptions.
   * @param startIndex index of the subscription to start from
   * @param maxCount maximum number of subscriptions to return, 0 to return all
   * @dev the order of IDs in the list is **not guaranteed**, therefore, if making successive calls, one
   * @dev should consider keeping the blockheight constant to ensure a holistic picture of the contract state
   */
  function getActiveSubscriptionIds(uint256 startIndex, uint256 maxCount) external view returns (uint256[] memory);

  /**
   * @notice Fund a subscription with native.
   * @param subId - ID of the subscription
   * @notice This method expects msg.value to be greater than or equal to 0.
   */
  function fundSubscriptionWithNative(uint256 subId) external payable;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {IOwnable} from "../interfaces/IOwnable.sol";

/// @title The ConfirmedOwner contract
/// @notice A contract with helpers for basic contract ownership.
contract ConfirmedOwnerWithProposal is IOwnable {
  address private s_owner;
  address private s_pendingOwner;

  event OwnershipTransferRequested(address indexed from, address indexed to);
  event OwnershipTransferred(address indexed from, address indexed to);

  constructor(address newOwner, address pendingOwner) {
    // solhint-disable-next-line gas-custom-errors
    require(newOwner != address(0), "Cannot set owner to zero");

    s_owner = newOwner;
    if (pendingOwner != address(0)) {
      _transferOwnership(pendingOwner);
    }
  }

  /// @notice Allows an owner to begin transferring ownership to a new address.
  function transferOwnership(address to) public override onlyOwner {
    _transferOwnership(to);
  }

  /// @notice Allows an ownership transfer to be completed by the recipient.
  function acceptOwnership() external override {
    // solhint-disable-next-line gas-custom-errors
    require(msg.sender == s_pendingOwner, "Must be proposed owner");

    address oldOwner = s_owner;
    s_owner = msg.sender;
    s_pendingOwner = address(0);

    emit OwnershipTransferred(oldOwner, msg.sender);
  }

  /// @notice Get the current owner
  function owner() public view override returns (address) {
    return s_owner;
  }

  /// @notice validate, transfer ownership, and emit relevant events
  function _transferOwnership(address to) private {
    // solhint-disable-next-line gas-custom-errors
    require(to != msg.sender, "Cannot transfer to self");

    s_pendingOwner = to;

    emit OwnershipTransferRequested(s_owner, to);
  }

  /// @notice validate access
  function _validateOwnership() internal view {
    // solhint-disable-next-line gas-custom-errors
    require(msg.sender == s_owner, "Only callable by owner");
  }

  /// @notice Reverts if called by anyone other than the contract owner.
  modifier onlyOwner() {
    _validateOwnership();
    _;
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IOwnable {
  function owner() external returns (address);

  function transferOwnership(address recipient) external;

  function acceptOwnership() external;
}

{
  "remappings": [
    "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
    "@uniswap/v3-core/=lib/v3-core/",
    "@uniswap/v3-periphery/=lib/v3-periphery/",
    "@uniswap/v2-periphery/=lib/v2-periphery/",
    "@uniswap/v2-core/=lib/v2-core/",
    "@chainlink/=lib/chainlink/",
    "@utils/=src/utils/",
    "@libs/=src/libs/",
    "@core/=src/",
    "@const/=src/const/",
    "@actions/=src/actions/",
    "@interfaces/=src/interfaces/",
    "@script/=script/",
    "chainlink/=lib/chainlink/",
    "ds-test/=lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/src/",
    "erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/",
    "forge-std/=lib/forge-std/src/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/",
    "v3-core/=lib/v3-core/contracts/",
    "v3-periphery/=lib/v3-periphery/contracts/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "shanghai",
  "viaIR": false,
  "libraries": {
    "src/utils/Time.sol": {
      "Time": "0xd6cEC8fB255f2011F1bf0AB44729b6d6C8006656"
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

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ERC20Burnable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"enum 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ERC20Burnable","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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

-----Decoded View---------------
Arg [0] : _startTimestamp (uint32): 1729958400
Arg [1] : _vrfCoordinator (address): 0xD7f86b4b8Cae7D942340FF628F82735b7a20893a
Arg [2] : _subscriptionId (uint256): 115526871362379674834559119022895456518217000507353055451425935878966695398848
Arg [3] : _lotus (address): 0xCC42b2B6D90e3747c2b8E62581183A88E3Ca093a
Arg [4] : _titanX (address): 0xF19308F923582A6f7c465e5CE7a9Dc1BEC6665B1
Arg [5] : _minSharesToBloom (uint256): 150000000000000000000000
Arg [6] : _volt (address): 0x66b5228CfD34d9f4d9f03188d67816286C7c0b74
Arg [7] : _keyHash (bytes32): 0x8077df514608a09f83e4e8d300645594e5d7234665448ba83f51a50f842bd3d9
Arg [8] : _params (tuple): System.Collections.Generic.List`1[Nethereum.ABI.FunctionEncoding.ParameterOutput]

-----Encoded View---------------
11 Constructor Arguments found :
Arg [0] : 00000000000000000000000000000000000000000000000000000000671d1200
Arg [1] : 000000000000000000000000d7f86b4b8cae7d942340ff628f82735b7a20893a
Arg [2] : ff69e45a452760adf8bbae506631197cc41f0e2d83580febb35bc2548a878dc0
Arg [3] : 000000000000000000000000cc42b2b6d90e3747c2b8e62581183a88e3ca093a
Arg [4] : 000000000000000000000000f19308f923582a6f7c465e5ce7a9dc1bec6665b1
Arg [5] : 000000000000000000000000000000000000000000001fc3842bd1f071c00000
Arg [6] : 00000000000000000000000066b5228cfd34d9f4d9f03188d67816286c7c0b74
Arg [7] : 8077df514608a09f83e4e8d300645594e5d7234665448ba83f51a50f842bd3d9
Arg [8] : 000000000000000000000000e592427a0aece92de3edee1f18e0157c05861564
Arg [9] : 0000000000000000000000001f98431c8ad98523631ae4a59f267346ea31f984
Arg [10] : 0000000000000000000000005da227386e0fd73329fe3923394913eca3a624f7