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// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.28;

import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "./interfaces/IDexAdapter.sol";
import "./interfaces/IInitializeSelector.sol";
import "./interfaces/IRewardsWhitelister.sol";
import "./interfaces/IProtocolFeeRouter.sol";
import "./interfaces/IStakingPoolToken.sol";
import "./TokenRewards.sol";

contract StakingPoolToken is
    Initializable,
    IInitializeSelector,
    IStakingPoolToken,
    ERC20Upgradeable,
    OwnableUpgradeable
{
    using SafeERC20 for IERC20;

    address public override INDEX_FUND;
    address public override POOL_REWARDS;

    address public override stakeUserRestriction;
    address public override stakingToken;

    IDexAdapter public DEX_ADAPTER;
    IV3TwapUtilities public V3_TWAP_UTILS;

    modifier onlyRestricted() {
        require(_msgSender() == stakeUserRestriction, "R");
        _;
    }

    /// @custom:oz-upgrades-unsafe-allow constructor
    constructor() {
        _disableInitializers();
    }

    function initialize(
        string memory _name,
        string memory _symbol,
        address _indexFund,
        address _stakeUserRestriction,
        bytes memory _immutables
    ) public initializer {
        __ERC20_init(_name, _symbol);
        __Ownable_init(_msgSender());

        stakeUserRestriction = _stakeUserRestriction;
        INDEX_FUND = _indexFund;

        (,,,,, address _v3TwapUtilities, address _dexAdapter) =
            abi.decode(_immutables, (address, address, address, address, address, address, address));

        DEX_ADAPTER = IDexAdapter(_dexAdapter);
        V3_TWAP_UTILS = IV3TwapUtilities(_v3TwapUtilities);
    }

    function initializeSelector() external pure override returns (bytes4) {
        return this.initialize.selector;
    }

    function stake(address _user, uint256 _amount) external override {
        require(stakingToken != address(0), "I");
        if (stakeUserRestriction != address(0)) {
            require(_user == stakeUserRestriction, "U");
        }
        _mint(_user, _amount);
        IERC20(stakingToken).safeTransferFrom(_msgSender(), address(this), _amount);
        emit Stake(_msgSender(), _user, _amount);
    }

    function unstake(uint256 _amount) external override {
        _burn(_msgSender(), _amount);
        IERC20(stakingToken).safeTransfer(_msgSender(), _amount);
        emit Unstake(_msgSender(), _amount);
    }

    function setPoolRewards(address _rewards) external onlyOwner {
        require(POOL_REWARDS == address(0), "I");
        POOL_REWARDS = _rewards;
    }

    function setStakingToken(address _stakingToken) external onlyOwner {
        require(stakingToken == address(0), "S");
        stakingToken = _stakingToken;
    }

    function removeStakeUserRestriction() external onlyRestricted {
        stakeUserRestriction = address(0);
    }

    function setStakeUserRestriction(address _user) external onlyRestricted {
        stakeUserRestriction = _user;
    }

    function _update(address _from, address _to, uint256 _value) internal override {
        super._update(_from, _to, _value);
        if (_from != address(0)) {
            TokenRewards(POOL_REWARDS).setShares(_from, _value, true);
        }
        if (_to != address(0) && _to != address(0xdead)) {
            TokenRewards(POOL_REWARDS).setShares(_to, _value, false);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.2.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";
import {IERC1363} from "../../../interfaces/IERC1363.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC-20 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 {
    /**
     * @dev An operation with an ERC-20 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.
     *
     * IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
     * smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
     * this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
     * that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
     */
    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.
     *
     * IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
     * smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
     * this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
     * that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
     */
    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.
     *
     * NOTE: If the token implements ERC-7674, this function will not modify any temporary allowance. This function
     * only sets the "standard" allowance. Any temporary allowance will remain active, in addition to the value being
     * set here.
     */
    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 Performs an {ERC1363} transferAndCall, with a fallback to the simple {ERC20} transfer if the target has no
     * code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * Reverts if the returned value is other than `true`.
     */
    function transferAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
        if (to.code.length == 0) {
            safeTransfer(token, to, value);
        } else if (!token.transferAndCall(to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Performs an {ERC1363} transferFromAndCall, with a fallback to the simple {ERC20} transferFrom if the target
     * has no code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * Reverts if the returned value is other than `true`.
     */
    function transferFromAndCallRelaxed(
        IERC1363 token,
        address from,
        address to,
        uint256 value,
        bytes memory data
    ) internal {
        if (to.code.length == 0) {
            safeTransferFrom(token, from, to, value);
        } else if (!token.transferFromAndCall(from, to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Performs an {ERC1363} approveAndCall, with a fallback to the simple {ERC20} approve if the target has no
     * code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * NOTE: When the recipient address (`to`) has no code (i.e. is an EOA), this function behaves as {forceApprove}.
     * Opposedly, when the recipient address (`to`) has code, this function only attempts to call {ERC1363-approveAndCall}
     * once without retrying, and relies on the returned value to be true.
     *
     * Reverts if the returned value is other than `true`.
     */
    function approveAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
        if (to.code.length == 0) {
            forceApprove(token, to, value);
        } else if (!token.approveAndCall(to, value, data)) {
            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 {_callOptionalReturnBool} that reverts if call fails to meet the requirements.
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        uint256 returnSize;
        uint256 returnValue;
        assembly ("memory-safe") {
            let success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
            // bubble errors
            if iszero(success) {
                let ptr := mload(0x40)
                returndatacopy(ptr, 0, returndatasize())
                revert(ptr, returndatasize())
            }
            returnSize := returndatasize()
            returnValue := mload(0)
        }

        if (returnSize == 0 ? address(token).code.length == 0 : returnValue != 1) {
            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 silently catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        bool success;
        uint256 returnSize;
        uint256 returnValue;
        assembly ("memory-safe") {
            success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
            returnSize := returndatasize()
            returnValue := mload(0)
        }
        return success && (returnSize == 0 ? address(token).code.length > 0 : returnValue == 1);
    }
}

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

pragma solidity ^0.8.20;

import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.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 OwnableUpgradeable is Initializable, ContextUpgradeable {
    /// @custom:storage-location erc7201:openzeppelin.storage.Ownable
    struct OwnableStorage {
        address _owner;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Ownable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant OwnableStorageLocation = 0x9016d09d72d40fdae2fd8ceac6b6234c7706214fd39c1cd1e609a0528c199300;

    function _getOwnableStorage() private pure returns (OwnableStorage storage $) {
        assembly {
            $.slot := OwnableStorageLocation
        }
    }

    /**
     * @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.
     */
    function __Ownable_init(address initialOwner) internal onlyInitializing {
        __Ownable_init_unchained(initialOwner);
    }

    function __Ownable_init_unchained(address initialOwner) internal onlyInitializing {
        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) {
        OwnableStorage storage $ = _getOwnableStorage();
        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 {
        OwnableStorage storage $ = _getOwnableStorage();
        address oldOwner = $._owner;
        $._owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.2.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {IERC20Metadata} from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import {ContextUpgradeable} from "../../utils/ContextUpgradeable.sol";
import {IERC20Errors} from "@openzeppelin/contracts/interfaces/draft-IERC6093.sol";
import {Initializable} from "../../proxy/utils/Initializable.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 ERC-20
 * applications.
 */
abstract contract ERC20Upgradeable is Initializable, ContextUpgradeable, IERC20, IERC20Metadata, IERC20Errors {
    /// @custom:storage-location erc7201:openzeppelin.storage.ERC20
    struct ERC20Storage {
        mapping(address account => uint256) _balances;

        mapping(address account => mapping(address spender => uint256)) _allowances;

        uint256 _totalSupply;

        string _name;
        string _symbol;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.ERC20")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant ERC20StorageLocation = 0x52c63247e1f47db19d5ce0460030c497f067ca4cebf71ba98eeadabe20bace00;

    function _getERC20Storage() private pure returns (ERC20Storage storage $) {
        assembly {
            $.slot := ERC20StorageLocation
        }
    }

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    function __ERC20_init(string memory name_, string memory symbol_) internal onlyInitializing {
        __ERC20_init_unchained(name_, symbol_);
    }

    function __ERC20_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
        ERC20Storage storage $ = _getERC20Storage();
        $._name = name_;
        $._symbol = symbol_;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual returns (string memory) {
        ERC20Storage storage $ = _getERC20Storage();
        return $._name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual returns (string memory) {
        ERC20Storage storage $ = _getERC20Storage();
        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) {
        ERC20Storage storage $ = _getERC20Storage();
        return $._totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual returns (uint256) {
        ERC20Storage storage $ = _getERC20Storage();
        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) {
        ERC20Storage storage $ = _getERC20Storage();
        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}.
     *
     * Skips emitting an {Approval} event indicating an allowance update. This is not
     * required by the ERC. See {xref-ERC20-_approve-address-address-uint256-bool-}[_approve].
     *
     * 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 {
        ERC20Storage storage $ = _getERC20Storage();
        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:
     *
     * ```solidity
     * 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 {
        ERC20Storage storage $ = _getERC20Storage();
        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 v5.0.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.20;

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```solidity
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 *
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Storage of the initializable contract.
     *
     * It's implemented on a custom ERC-7201 namespace to reduce the risk of storage collisions
     * when using with upgradeable contracts.
     *
     * @custom:storage-location erc7201:openzeppelin.storage.Initializable
     */
    struct InitializableStorage {
        /**
         * @dev Indicates that the contract has been initialized.
         */
        uint64 _initialized;
        /**
         * @dev Indicates that the contract is in the process of being initialized.
         */
        bool _initializing;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Initializable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant INITIALIZABLE_STORAGE = 0xf0c57e16840df040f15088dc2f81fe391c3923bec73e23a9662efc9c229c6a00;

    /**
     * @dev The contract is already initialized.
     */
    error InvalidInitialization();

    /**
     * @dev The contract is not initializing.
     */
    error NotInitializing();

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint64 version);

    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts.
     *
     * Similar to `reinitializer(1)`, except that in the context of a constructor an `initializer` may be invoked any
     * number of times. This behavior in the constructor can be useful during testing and is not expected to be used in
     * production.
     *
     * Emits an {Initialized} event.
     */
    modifier initializer() {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        // Cache values to avoid duplicated sloads
        bool isTopLevelCall = !$._initializing;
        uint64 initialized = $._initialized;

        // Allowed calls:
        // - initialSetup: the contract is not in the initializing state and no previous version was
        //                 initialized
        // - construction: the contract is initialized at version 1 (no reininitialization) and the
        //                 current contract is just being deployed
        bool initialSetup = initialized == 0 && isTopLevelCall;
        bool construction = initialized == 1 && address(this).code.length == 0;

        if (!initialSetup && !construction) {
            revert InvalidInitialization();
        }
        $._initialized = 1;
        if (isTopLevelCall) {
            $._initializing = true;
        }
        _;
        if (isTopLevelCall) {
            $._initializing = false;
            emit Initialized(1);
        }
    }

    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * A reinitializer may be used after the original initialization step. This is essential to configure modules that
     * are added through upgrades and that require initialization.
     *
     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
     * cannot be nested. If one is invoked in the context of another, execution will revert.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     *
     * WARNING: Setting the version to 2**64 - 1 will prevent any future reinitialization.
     *
     * Emits an {Initialized} event.
     */
    modifier reinitializer(uint64 version) {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing || $._initialized >= version) {
            revert InvalidInitialization();
        }
        $._initialized = version;
        $._initializing = true;
        _;
        $._initializing = false;
        emit Initialized(version);
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        _checkInitializing();
        _;
    }

    /**
     * @dev Reverts if the contract is not in an initializing state. See {onlyInitializing}.
     */
    function _checkInitializing() internal view virtual {
        if (!_isInitializing()) {
            revert NotInitializing();
        }
    }

    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     *
     * Emits an {Initialized} event the first time it is successfully executed.
     */
    function _disableInitializers() internal virtual {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing) {
            revert InvalidInitialization();
        }
        if ($._initialized != type(uint64).max) {
            $._initialized = type(uint64).max;
            emit Initialized(type(uint64).max);
        }
    }

    /**
     * @dev Returns the highest version that has been initialized. See {reinitializer}.
     */
    function _getInitializedVersion() internal view returns (uint64) {
        return _getInitializableStorage()._initialized;
    }

    /**
     * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
     */
    function _isInitializing() internal view returns (bool) {
        return _getInitializableStorage()._initializing;
    }

    /**
     * @dev Returns a pointer to the storage namespace.
     */
    // solhint-disable-next-line var-name-mixedcase
    function _getInitializableStorage() private pure returns (InitializableStorage storage $) {
        assembly {
            $.slot := INITIALIZABLE_STORAGE
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;

interface IDexAdapter {
    function ASYNC_INITIALIZE() external view returns (bool);

    function V2_ROUTER() external view returns (address);

    function V3_ROUTER() external view returns (address);

    function WETH() external view returns (address);

    function getV3Pool(address _token0, address _token1, int24 _tickSpacing) external view returns (address _pool);

    function getV3Pool(address _token0, address _token1, uint24 _poolFee) external view returns (address _pool);

    function getV2Pool(address _token0, address _token1) external view returns (address _pool);

    function createV2Pool(address _token0, address _token1) external returns (address _pool);

    function getReserves(address _pool) external view returns (uint112, uint112);

    function swapV2Single(
        address _tokenIn,
        address _tokenOut,
        uint256 _amountIn,
        uint256 _amountOutMin,
        address _recipient
    ) external returns (uint256 _amountOut);

    function swapV2SingleExactOut(
        address _tokenIn,
        address _tokenOut,
        uint256 _amountInMax,
        uint256 _amountOut,
        address _recipient
    ) external returns (uint256 _amountInUsed);

    function swapV3Single(
        address _tokenIn,
        address _tokenOut,
        uint24 _fee,
        uint256 _amountIn,
        uint256 _amountOutMin,
        address _recipient
    ) external returns (uint256 _amountOut);

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint256 amountADesired,
        uint256 amountBDesired,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline
    ) external;

    function removeLiquidity(
        address tokenA,
        address tokenB,
        uint256 liquidity,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline
    ) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;

interface IInitializeSelector {
    function initializeSelector() external view returns (bytes4);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;

interface IRewardsWhitelister {
    event PauseToken(address indexed token, bool isPaused);

    event SetWhitelistFromDebondFees(address addy, bool isWhitelisted);

    event ToggleToken(address indexed token, bool isWhitelisted);

    function isWhitelistedFromDebondFee(address addy) external view returns (bool);

    function paused(address token) external view returns (bool);

    function whitelist(address token) external view returns (bool);

    function getFullWhitelist() external view returns (address[] memory);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;

import "./IProtocolFees.sol";

interface IProtocolFeeRouter {
    function protocolFees() external view returns (IProtocolFees);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;

interface IStakingPoolToken {
    event Stake(address indexed executor, address indexed user, uint256 amount);

    event Unstake(address indexed user, uint256 amount);

    function INDEX_FUND() external view returns (address);

    function POOL_REWARDS() external view returns (address);

    function stakingToken() external view returns (address);

    function stakeUserRestriction() external view returns (address);

    function stake(address user, uint256 amount) external;

    function unstake(uint256 amount) external;

    function setPoolRewards(address poolRewards) external;

    function setStakingToken(address stakingToken) external;
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.28;

import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@uniswap/v3-core/contracts/libraries/FixedPoint96.sol";
import "./interfaces/IDecentralizedIndex.sol";
import "./interfaces/IDexAdapter.sol";
import "./interfaces/IInitializeSelector.sol";
import "./interfaces/IPEAS.sol";
import "./interfaces/IRewardsWhitelister.sol";
import "./interfaces/IProtocolFees.sol";
import "./interfaces/IProtocolFeeRouter.sol";
import "./interfaces/ITokenRewards.sol";
import "./interfaces/IV3TwapUtilities.sol";

contract TokenRewards is Initializable, IInitializeSelector, ContextUpgradeable, ITokenRewards {
    using SafeERC20 for IERC20;

    uint256 constant PRECISION = 10 ** 27;
    uint256 constant REWARDS_SWAP_SLIPPAGE = 20; // 2%
    uint24 constant REWARDS_POOL_FEE = 10000; // 1%
    int24 constant REWARDS_TICK_SPACING = 200;

    uint256 REWARDS_SWAP_OVERRIDE_MIN;
    address INDEX_FUND;
    address PAIRED_LP_TOKEN;
    bool LEAVE_AS_PAIRED_LP_TOKEN;
    IProtocolFeeRouter PROTOCOL_FEE_ROUTER;
    IRewardsWhitelister REWARDS_WHITELISTER;
    IDexAdapter DEX_ADAPTER;
    IV3TwapUtilities V3_TWAP_UTILS;

    struct Reward {
        uint256 excluded;
        uint256 realized;
    }

    address public override trackingToken;
    address public override rewardsToken;
    uint256 public override totalShares;
    uint256 public override totalStakers;
    mapping(address => uint256) public shares;
    mapping(address => mapping(address => Reward)) public rewards;

    uint256 _rewardsSwapAmountInOverride;
    mapping(address => uint256) _rewardsPerShare;
    mapping(address => uint256) public rewardsDistributed;
    mapping(address => uint256) public rewardsDeposited;
    address[] _allRewardsTokens;
    mapping(address => bool) _depositedRewardsToken;

    /// @custom:oz-upgrades-unsafe-allow constructor
    constructor() {
        _disableInitializers();
    }

    function initialize(address _indexFund, address _trackingToken, bool _leaveAsPaired, bytes memory _immutables)
        public
        initializer
    {
        __Context_init();

        (
            address _pairedLpToken,
            address _lpRewardsToken,
            ,
            address _feeRouter,
            address _rewardsWhitelist,
            address _v3TwapUtilities,
            address _dexAdapter
        ) = abi.decode(_immutables, (address, address, address, address, address, address, address));

        PROTOCOL_FEE_ROUTER = IProtocolFeeRouter(_feeRouter);
        REWARDS_WHITELISTER = IRewardsWhitelister(_rewardsWhitelist);
        DEX_ADAPTER = IDexAdapter(_dexAdapter);
        V3_TWAP_UTILS = IV3TwapUtilities(_v3TwapUtilities);
        INDEX_FUND = _indexFund;
        PAIRED_LP_TOKEN = _pairedLpToken;
        LEAVE_AS_PAIRED_LP_TOKEN = _leaveAsPaired;
        trackingToken = _trackingToken;
        rewardsToken = _lpRewardsToken;

        // Setup min swap to be small amount of paired LP token to prevent DOS attemps
        uint8 _pd = IERC20Metadata(_pairedLpToken).decimals();
        uint256 _minSwap = 10 ** (_pd / 2);
        REWARDS_SWAP_OVERRIDE_MIN = _minSwap == 0 ? 10 ** _pd : _minSwap;
    }

    function initializeSelector() external pure override returns (bytes4) {
        return this.initialize.selector;
    }

    function setShares(address _wallet, uint256 _amount, bool _sharesRemoving) external override {
        require(_msgSender() == trackingToken, "UNAUTHORIZED");
        _setShares(_wallet, _amount, _sharesRemoving);
    }

    function _setShares(address _wallet, uint256 _amount, bool _sharesRemoving) internal {
        _processFeesIfApplicable();
        if (_sharesRemoving) {
            _removeShares(_wallet, _amount);
            emit RemoveShares(_wallet, _amount);
        } else {
            _addShares(_wallet, _amount);
            emit AddShares(_wallet, _amount);
        }
    }

    function _addShares(address _wallet, uint256 _amount) internal {
        if (shares[_wallet] > 0) {
            _distributeReward(_wallet);
        }
        uint256 sharesBefore = shares[_wallet];
        totalShares += _amount;
        shares[_wallet] += _amount;
        if (sharesBefore == 0 && shares[_wallet] > 0) {
            totalStakers++;
        }
        _resetExcluded(_wallet);
    }

    function _removeShares(address _wallet, uint256 _amount) internal {
        require(shares[_wallet] > 0 && _amount <= shares[_wallet], "RE");
        _distributeReward(_wallet);
        totalShares -= _amount;
        shares[_wallet] -= _amount;
        if (shares[_wallet] == 0) {
            totalStakers--;
        }
        _resetExcluded(_wallet);
    }

    function _processFeesIfApplicable() internal {
        IDecentralizedIndex(INDEX_FUND).processPreSwapFeesAndSwap();
    }

    function depositFromPairedLpToken(uint256 _amountTknDepositing) public override {
        require(PAIRED_LP_TOKEN != rewardsToken, "R");
        if (_amountTknDepositing > 0) {
            IERC20(PAIRED_LP_TOKEN).safeTransferFrom(_msgSender(), address(this), _amountTknDepositing);
        }
        uint256 _unclaimedPairedLpTkns = rewardsDeposited[PAIRED_LP_TOKEN] - rewardsDistributed[PAIRED_LP_TOKEN];
        uint256 _amountTkn = IERC20(PAIRED_LP_TOKEN).balanceOf(address(this)) - _unclaimedPairedLpTkns;
        require(_amountTkn > 0, "A");
        uint256 _adminAmt = _getAdminFeeFromAmount(_amountTkn);
        _amountTkn -= _adminAmt;

        if (LEAVE_AS_PAIRED_LP_TOKEN) {
            (, uint256 _yieldBurnFee) = _getYieldFees();
            uint256 _burnAmount = (_amountTkn * _yieldBurnFee) / PROTOCOL_FEE_ROUTER.protocolFees().DEN();
            _adminAmt += _burnAmount;
            _amountTkn -= _burnAmount;
            if (_adminAmt > 0) {
                _processAdminFee(_adminAmt);
            }
            _depositRewards(PAIRED_LP_TOKEN, _amountTkn);
            return;
        }

        (address _token0, address _token1) =
            PAIRED_LP_TOKEN < rewardsToken ? (PAIRED_LP_TOKEN, rewardsToken) : (rewardsToken, PAIRED_LP_TOKEN);
        address _pool;
        try DEX_ADAPTER.getV3Pool(_token0, _token1, REWARDS_POOL_FEE) returns (address __pool) {
            _pool = __pool;
        } catch {
            _pool = DEX_ADAPTER.getV3Pool(_token0, _token1, REWARDS_TICK_SPACING);
        }
        uint160 _rewardsSqrtPriceX96 = V3_TWAP_UTILS.sqrtPriceX96FromPoolAndInterval(_pool);
        uint256 _rewardsPriceX96 = V3_TWAP_UTILS.priceX96FromSqrtPriceX96(_rewardsSqrtPriceX96);
        uint256 _amountOut = _token0 == PAIRED_LP_TOKEN
            ? (_rewardsPriceX96 * _amountTkn) / FixedPoint96.Q96
            : (_amountTkn * FixedPoint96.Q96) / _rewardsPriceX96;
        _swapForRewards(_amountTkn, _amountOut, _adminAmt);
    }

    function depositRewards(address _token, uint256 _amount) external override {
        _depositRewardsFromToken(_msgSender(), _token, _amount, true);
    }

    function depositRewardsNoTransfer(address _token, uint256 _amount) external override {
        require(_msgSender() == INDEX_FUND, "AUTH");
        _depositRewardsFromToken(_msgSender(), _token, _amount, false);
    }

    function _depositRewardsFromToken(address _user, address _token, uint256 _amount, bool _shouldTransfer) internal {
        require(_amount > 0, "A");
        require(_isValidRewardsToken(_token), "V");
        uint256 _finalAmt = _amount;
        if (_shouldTransfer) {
            uint256 _balBefore = IERC20(_token).balanceOf(address(this));
            IERC20(_token).safeTransferFrom(_user, address(this), _finalAmt);
            _finalAmt = IERC20(_token).balanceOf(address(this)) - _balBefore;
        }
        uint256 _adminAmt = _getAdminFeeFromAmount(_finalAmt);
        if (_adminAmt > 0) {
            IERC20(_token).safeTransfer(OwnableUpgradeable(address(V3_TWAP_UTILS)).owner(), _adminAmt);
            _finalAmt -= _adminAmt;
        }
        _depositRewards(_token, _finalAmt);
    }

    function _depositRewards(address _token, uint256 _amountTotal) internal {
        if (_amountTotal == 0) {
            return;
        }
        if (!_depositedRewardsToken[_token]) {
            _depositedRewardsToken[_token] = true;
            _allRewardsTokens.push(_token);
        }
        if (totalShares == 0) {
            _burnRewards(_token, _amountTotal);
            return;
        }

        uint256 _depositAmount = _amountTotal;
        if (_token == rewardsToken) {
            (, uint256 _yieldBurnFee) = _getYieldFees();
            if (_yieldBurnFee > 0) {
                uint256 _burnAmount = (_amountTotal * _yieldBurnFee) / PROTOCOL_FEE_ROUTER.protocolFees().DEN();
                if (_burnAmount > 0) {
                    _burnRewards(rewardsToken, _burnAmount);
                    _depositAmount -= _burnAmount;
                }
            }
        }
        rewardsDeposited[_token] += _depositAmount;
        _rewardsPerShare[_token] += (PRECISION * _depositAmount) / totalShares;
        emit DepositRewards(_msgSender(), _token, _depositAmount);
    }

    function _distributeReward(address _wallet) internal {
        if (shares[_wallet] == 0) {
            return;
        }
        for (uint256 _i; _i < _allRewardsTokens.length; _i++) {
            address _token = _allRewardsTokens[_i];

            if (REWARDS_WHITELISTER.paused(_token)) {
                continue;
            }

            uint256 _amount = getUnpaid(_token, _wallet);
            rewards[_token][_wallet].realized += _amount;
            rewards[_token][_wallet].excluded = _cumulativeRewards(_token, shares[_wallet], true);
            if (_amount > 0) {
                rewardsDistributed[_token] += _amount;
                IERC20(_token).safeTransfer(_wallet, _amount);
                emit DistributeReward(_wallet, _token, _amount);
            }
        }
    }

    function _resetExcluded(address _wallet) internal {
        for (uint256 _i; _i < _allRewardsTokens.length; _i++) {
            address _token = _allRewardsTokens[_i];
            rewards[_token][_wallet].excluded = _cumulativeRewards(_token, shares[_wallet], true);
        }
    }

    function _burnRewards(address _token, uint256 _burnAmount) internal {
        try IPEAS(_token).burn(_burnAmount) {}
        catch {
            IERC20(_token).safeTransfer(OwnableUpgradeable(address(V3_TWAP_UTILS)).owner(), _burnAmount);
        }
    }

    function _isValidRewardsToken(address _token) internal view returns (bool) {
        return _token == rewardsToken || REWARDS_WHITELISTER.whitelist(_token);
    }

    function _getAdminFeeFromAmount(uint256 _amount) internal view returns (uint256) {
        (uint256 _yieldAdminFee,) = _getYieldFees();
        if (_yieldAdminFee == 0) {
            return 0;
        }
        return (_amount * _yieldAdminFee) / PROTOCOL_FEE_ROUTER.protocolFees().DEN();
    }

    function _getYieldFees() internal view returns (uint256 _admin, uint256 _burn) {
        IProtocolFees _fees = PROTOCOL_FEE_ROUTER.protocolFees();
        if (address(_fees) != address(0)) {
            _admin = _fees.yieldAdmin();
            _burn = _fees.yieldBurn();
        }
    }

    function _swapForRewards(uint256 _amountIn, uint256 _amountOut, uint256 _adminAmt) internal {
        if (_rewardsSwapAmountInOverride > 0) {
            _adminAmt = (_adminAmt * _rewardsSwapAmountInOverride) / _amountIn;
            _amountOut = (_amountOut * _rewardsSwapAmountInOverride) / _amountIn;
            _amountIn = _rewardsSwapAmountInOverride;
        }
        uint256 _balBefore = IERC20(rewardsToken).balanceOf(address(this));
        IERC20(PAIRED_LP_TOKEN).safeIncreaseAllowance(address(DEX_ADAPTER), _amountIn);
        try DEX_ADAPTER.swapV3Single(
            PAIRED_LP_TOKEN,
            rewardsToken,
            REWARDS_POOL_FEE,
            _amountIn,
            _amountIn == REWARDS_SWAP_OVERRIDE_MIN ? 0 : (_amountOut * (1000 - REWARDS_SWAP_SLIPPAGE)) / 1000,
            address(this)
        ) {
            _rewardsSwapAmountInOverride = 0;
            if (_adminAmt > 0) {
                _processAdminFee(_adminAmt);
            }
            _depositRewards(rewardsToken, IERC20(rewardsToken).balanceOf(address(this)) - _balBefore);
        } catch {
            _rewardsSwapAmountInOverride =
                _amountIn / 2 < REWARDS_SWAP_OVERRIDE_MIN ? REWARDS_SWAP_OVERRIDE_MIN : _amountIn / 2;
            IERC20(PAIRED_LP_TOKEN).safeDecreaseAllowance(address(DEX_ADAPTER), _amountIn);
            emit RewardSwapError(_amountIn);
        }
    }

    function _processAdminFee(uint256 _amount) internal {
        IERC20(PAIRED_LP_TOKEN).safeTransfer(OwnableUpgradeable(address(V3_TWAP_UTILS)).owner(), _amount);
    }

    function claimReward(address _wallet) external override {
        _processFeesIfApplicable();
        _distributeReward(_wallet);
        emit ClaimReward(_wallet);
    }

    function getAllRewardsTokens() external view override returns (address[] memory) {
        return _allRewardsTokens;
    }

    function getUnpaid(address _token, address _wallet) public view returns (uint256) {
        if (shares[_wallet] == 0) {
            return 0;
        }
        uint256 earnedRewards = _cumulativeRewards(_token, shares[_wallet], false);
        uint256 rewardsExcluded = rewards[_token][_wallet].excluded;
        if (earnedRewards <= rewardsExcluded) {
            return 0;
        }
        return earnedRewards - rewardsExcluded;
    }

    function _cumulativeRewards(address _token, uint256 _share, bool _roundUp) internal view returns (uint256 _r) {
        _r = (_share * _rewardsPerShare[_token]) / PRECISION;
        if (_roundUp && (_share * _rewardsPerShare[_token]) % PRECISION > 0) {
            _r = _r + 1;
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-20 standard as defined in the ERC.
 */
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 v5.1.0) (interfaces/IERC1363.sol)

pragma solidity ^0.8.20;

import {IERC20} from "./IERC20.sol";
import {IERC165} from "./IERC165.sol";

/**
 * @title IERC1363
 * @dev Interface of the ERC-1363 standard as defined in the https://eips.ethereum.org/EIPS/eip-1363[ERC-1363].
 *
 * Defines an extension interface for ERC-20 tokens that supports executing code on a recipient contract
 * after `transfer` or `transferFrom`, or code on a spender contract after `approve`, in a single transaction.
 */
interface IERC1363 is IERC20, IERC165 {
    /*
     * Note: the ERC-165 identifier for this interface is 0xb0202a11.
     * 0xb0202a11 ===
     *   bytes4(keccak256('transferAndCall(address,uint256)')) ^
     *   bytes4(keccak256('transferAndCall(address,uint256,bytes)')) ^
     *   bytes4(keccak256('transferFromAndCall(address,address,uint256)')) ^
     *   bytes4(keccak256('transferFromAndCall(address,address,uint256,bytes)')) ^
     *   bytes4(keccak256('approveAndCall(address,uint256)')) ^
     *   bytes4(keccak256('approveAndCall(address,uint256,bytes)'))
     */

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferAndCall(address to, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @param data Additional data with no specified format, sent in call to `to`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferAndCall(address to, uint256 value, bytes calldata data) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the allowance mechanism
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param from The address which you want to send tokens from.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferFromAndCall(address from, address to, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the allowance mechanism
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param from The address which you want to send tokens from.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @param data Additional data with no specified format, sent in call to `to`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferFromAndCall(address from, address to, uint256 value, bytes calldata data) external returns (bool);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens and then calls {IERC1363Spender-onApprovalReceived} on `spender`.
     * @param spender The address which will spend the funds.
     * @param value The amount of tokens to be spent.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function approveAndCall(address spender, uint256 value) external returns (bool);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens and then calls {IERC1363Spender-onApprovalReceived} on `spender`.
     * @param spender The address which will spend the funds.
     * @param value The amount of tokens to be spent.
     * @param data Additional data with no specified format, sent in call to `spender`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function approveAndCall(address spender, uint256 value, bytes calldata data) external returns (bool);
}

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

pragma solidity ^0.8.20;
import {Initializable} from "../proxy/utils/Initializable.sol";

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

    function __Context_init_unchained() internal onlyInitializing {
    }
    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 v5.1.0) (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.20;

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

/**
 * @dev Interface for the optional metadata functions from the ERC-20 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 v5.1.0) (interfaces/draft-IERC6093.sol)
pragma solidity ^0.8.20;

/**
 * @dev Standard ERC-20 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-20 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 ERC-721 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-721 tokens.
 */
interface IERC721Errors {
    /**
     * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in ERC-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 ERC-1155 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-1155 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
pragma solidity ^0.8.28;

interface IProtocolFees {
    event SetYieldAdmin(uint256 newFee);
    event SetYieldBurn(uint256 newFee);

    function DEN() external view returns (uint256);

    function yieldAdmin() external view returns (uint256);

    function yieldBurn() external view returns (uint256);
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.4.0;

/// @title FixedPoint96
/// @notice A library for handling binary fixed point numbers, see https://en.wikipedia.org/wiki/Q_(number_format)
/// @dev Used in SqrtPriceMath.sol
library FixedPoint96 {
    uint8 internal constant RESOLUTION = 96;
    uint256 internal constant Q96 = 0x1000000000000000000000000;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "./IDexAdapter.sol";

interface IDecentralizedIndex is IERC20 {
    enum IndexType {
        WEIGHTED,
        UNWEIGHTED
    }

    struct Config {
        address partner;
        uint256 debondCooldown;
        bool hasTransferTax;
        bool blacklistTKNpTKNPoolV2; // DEPRECATED: we should remove this in future versions
    }

    // all fees: 1 == 0.01%, 10 == 0.1%, 100 == 1%
    struct Fees {
        uint16 burn;
        uint16 bond;
        uint16 debond;
        uint16 buy;
        uint16 sell;
        uint16 partner;
    }

    struct IndexAssetInfo {
        address token;
        uint256 weighting;
        uint256 basePriceUSDX96;
        address c1; // arbitrary contract/address field we can use for an index
        uint256 q1; // arbitrary quantity/number field we can use for an index
    }

    /// @notice The ```Create``` event fires when a new decentralized index has been created
    /// @param newIdx The CA of the new index contract
    /// @param wallet The creator of the new index
    event Create(address indexed newIdx, address indexed wallet);

    /// @notice The ```FlashLoan``` event fires when someone flash loans assets from the pod
    /// @param executor The sender of the request
    /// @param recipient The recipient of the flashed funds
    /// @param token The token being flash loaned
    /// @param amount The amount of token to flash loan
    event FlashLoan(address indexed executor, address indexed recipient, address token, uint256 amount);

    /// @notice The ```FlashMint``` event fires when someone flash mints pTKN from the pod
    /// @param executor The sender of the request
    /// @param recipient The recipient of the flashed funds
    /// @param amount The amount of pTKN to flash mint
    event FlashMint(address indexed executor, address indexed recipient, uint256 amount);

    /// @notice The ```Initialize``` event fires when the new pod has been initialized,
    /// @notice which is at creation on some and in another txn for others (gas limits)
    /// @param wallet The wallet that initialized
    /// @param v2Pool The new UniV2 derivative pool that was created at initialization
    event Initialize(address indexed wallet, address v2Pool);

    /// @notice The ```Bond``` event fires when someone wraps into the pod which mints new pod tokens
    /// @param wallet The wallet that wrapped
    /// @param token The token that was used as a ref to wrap into, representing an underlying tkn
    /// @param amountTokensBonded Amount of underlying tkns used to wrap/bond
    /// @param amountTokensMinted Amount of new pod tokens (pTKN) minted
    event Bond(address indexed wallet, address indexed token, uint256 amountTokensBonded, uint256 amountTokensMinted);

    /// @notice The ```Debond``` event fires when someone unwraps from a pod and redeems underlying tkn(s)
    /// @param wallet The wallet that unwrapped/debond
    /// @param amountDebonded Amount of pTKNs burned/unwrapped
    event Debond(address indexed wallet, uint256 amountDebonded);

    /// @notice The ```AddLiquidity``` event fires when new liquidity (LP) for a pod is added
    /// @param wallet The wallet that added LP
    /// @param amountTokens Amount of pTKNs used for LP
    /// @param amountDAI Amount of pairedLpAsset used for LP
    event AddLiquidity(address indexed wallet, uint256 amountTokens, uint256 amountDAI);

    /// @notice The ```RemoveLiquidity``` event fires when LP is removed for a pod
    /// @param wallet The wallet that removed LP
    /// @param amountLiquidity Amount of liquidity removed
    event RemoveLiquidity(address indexed wallet, uint256 amountLiquidity);

    event SetPartner(address indexed wallet, address newPartner);

    event SetPartnerFee(address indexed wallet, uint16 newFee);

    function BOND_FEE() external view returns (uint16);

    function DEBOND_FEE() external view returns (uint16);

    function DEX_HANDLER() external view returns (IDexAdapter);

    function FLASH_FEE_AMOUNT_DAI() external view returns (uint256);

    function PAIRED_LP_TOKEN() external view returns (address);

    function config() external view returns (Config calldata);

    function fees() external view returns (Fees calldata);

    function unlocked() external view returns (uint8);

    function isFlashMinting() external view returns (uint8);

    function indexType() external view returns (IndexType);

    function created() external view returns (uint256);

    function lpStakingPool() external view returns (address);

    function lpRewardsToken() external view returns (address);

    function isAsset(address token) external view returns (bool);

    function getAllAssets() external view returns (IndexAssetInfo[] memory);

    function getInitialAmount(address sToken, uint256 sAmount, address tToken) external view returns (uint256);

    function processPreSwapFeesAndSwap() external;

    function totalAssets() external view returns (uint256 totalManagedAssets);

    function totalAssets(address asset) external view returns (uint256 totalManagedAssets);

    function convertToShares(uint256 assets) external view returns (uint256 shares);

    function convertToAssets(uint256 shares) external view returns (uint256 assets);

    function convertToAssetsPreFlashMint(uint256 shares) external view returns (uint256 assets);

    function setup() external;

    function bond(address token, uint256 amount, uint256 amountMintMin) external;

    function debond(uint256 amount, address[] memory token, uint8[] memory percentage) external;

    function addLiquidityV2(uint256 idxTokens, uint256 daiTokens, uint256 slippage, uint256 deadline)
        external
        returns (uint256);

    function removeLiquidityV2(uint256 lpTokens, uint256 minTokens, uint256 minDAI, uint256 deadline) external;

    function flash(address recipient, address token, uint256 amount, bytes calldata data) external;

    function flashMint(address recipient, uint256 amount, bytes calldata data) external;

    function setLpStakingPool(address lpStakingPool) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

interface IPEAS is IERC20 {
    event Burn(address indexed user, uint256 amount);

    function burn(uint256 amount) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;

interface ITokenRewards {
    event AddShares(address indexed wallet, uint256 amount);

    event RemoveShares(address indexed wallet, uint256 amount);

    event ClaimReward(address indexed wallet);

    event DistributeReward(address indexed wallet, address indexed token, uint256 amount);

    event DepositRewards(address indexed wallet, address indexed token, uint256 amount);

    event RewardSwapError(uint256 amountIn);

    function totalShares() external view returns (uint256);

    function totalStakers() external view returns (uint256);

    function rewardsToken() external view returns (address);

    function trackingToken() external view returns (address);

    function depositFromPairedLpToken(uint256 amount) external;

    function depositRewards(address token, uint256 amount) external;

    function depositRewardsNoTransfer(address token, uint256 amount) external;

    function claimReward(address wallet) external;

    function getAllRewardsTokens() external view returns (address[] memory);

    function setShares(address wallet, uint256 amount, bool sharesRemoving) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;

interface IV3TwapUtilities {
    function getV3Pool(address v3Factory, address token0, address token1) external view returns (address);

    function getV3Pool(address v3Factory, address token0, address token1, uint24 poolFee)
        external
        view
        returns (address);

    function getV3Pool(address v3Factory, address token0, address token1, int24 tickSpacing)
        external
        view
        returns (address);

    function getPoolPriceUSDX96(address pricePool, address nativeStablePool, address WETH9)
        external
        view
        returns (uint256);

    function sqrtPriceX96FromPoolAndInterval(address pool) external view returns (uint160);

    function sqrtPriceX96FromPoolAndPassedInterval(address pool, uint32 interval) external view returns (uint160);

    function priceX96FromSqrtPriceX96(uint160 sqrtPriceX96) external pure returns (uint256);
}

// 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
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC165.sol)

pragma solidity ^0.8.20;

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/IERC165.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[ERC].
 *
 * 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[ERC 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);
}

{
  "remappings": [
    "@chainlink/=node_modules/@chainlink/",
    "@fraxlend/=test/invariant/modules/fraxlend/",
    "fuzzlib/=lib/fuzzlib/src/",
    "swap-router/=test/invariant/modules/v3-periphery/swapRouter/",
    "v3-core/=test/invariant/modules/v3-core/",
    "v3-periphery/=test/invariant/modules/v3-periphery/",
    "v2-core/=test/invariant/modules/uniswap-v2/v2-core/contracts/",
    "v2-periphery/=test/invariant/modules/uniswap-v2/v2-periphery/contracts/",
    "uniswap-v2/=test/invariant/modules/uniswap-v2/",
    "solidity-bytes-utils/contracts/=test/invariant/modules/fraxlend/libraries/",
    "@rari-capital/solmate/=node_modules/solmate/",
    "@arbitrum/=node_modules/@arbitrum/",
    "@ensdomains/=node_modules/@ensdomains/",
    "@eth-optimism/=node_modules/@eth-optimism/",
    "@ethereum-waffle/=node_modules/@ethereum-waffle/",
    "@mean-finance/=node_modules/@mean-finance/",
    "@offchainlabs/=node_modules/@offchainlabs/",
    "@openzeppelin/=node_modules/@openzeppelin/",
    "@scroll-tech/=node_modules/@scroll-tech/",
    "@uniswap/=node_modules/@uniswap/",
    "@zksync/=node_modules/@zksync/",
    "base64-sol/=node_modules/base64-sol/",
    "ds-test/=lib/fuzzlib/lib/forge-std/lib/ds-test/src/",
    "erc721a/=node_modules/erc721a/",
    "eth-gas-reporter/=node_modules/eth-gas-reporter/",
    "forge-std/=lib/forge-std/src/",
    "hardhat/=node_modules/hardhat/",
    "solidity-code-metrics/=node_modules/solidity-code-metrics/",
    "solmate/=node_modules/solmate/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "paris",
  "viaIR": false,
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"allowance","type":"uint256"},{"internalType":"uint256","name":"needed","type":"uint256"}],"name":"ERC20InsufficientAllowance","type":"error"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"uint256","name":"balance","type":"uint256"},{"internalType":"uint256","name":"needed","type":"uint256"}],"name":"ERC20InsufficientBalance","type":"error"},{"inputs":[{"internalType":"address","name":"approver","type":"address"}],"name":"ERC20InvalidApprover","type":"error"},{"inputs":[{"internalType":"address","name":"receiver","type":"address"}],"name":"ERC20InvalidReceiver","type":"error"},{"inputs":[{"internalType":"address","name":"sender","type":"address"}],"name":"ERC20InvalidSender","type":"error"},{"inputs":[{"internalType":"address","name":"spender","type":"address"}],"name":"ERC20InvalidSpender","type":"error"},{"inputs":[],"name":"InvalidInitialization","type":"error"},{"inputs":[],"name":"NotInitializing","type":"error"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"OwnableInvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"OwnableUnauthorizedAccount","type":"error"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"SafeERC20FailedOperation","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint64","name":"version","type":"uint64"}],"name":"Initialized","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"executor","type":"address"},{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Stake","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Unstake","type":"event"},{"inputs":[],"name":"DEX_ADAPTER","outputs":[{"internalType":"contract IDexAdapter","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"INDEX_FUND","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"POOL_REWARDS","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"V3_TWAP_UTILS","outputs":[{"internalType":"contract IV3TwapUtilities","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"},{"internalType":"address","name":"_indexFund","type":"address"},{"internalType":"address","name":"_stakeUserRestriction","type":"address"},{"internalType":"bytes","name":"_immutables","type":"bytes"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"initializeSelector","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"removeStakeUserRestriction","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_rewards","type":"address"}],"name":"setPoolRewards","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_user","type":"address"}],"name":"setStakeUserRestriction","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_stakingToken","type":"address"}],"name":"setStakingToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_user","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"stake","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"stakeUserRestriction","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"stakingToken","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"unstake","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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