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// SPDX-License-Identifier: AGPL-3.0
pragma solidity ^0.8.0;

import {Governance} from "@periphery/utils/Governance.sol";
import {IAuction} from "./interfaces/IAuction.sol";
import {IStrategyInterface} from "./interfaces/IStrategyInterface.sol";
import {IDistributionCreator, CampaignParameters} from "./interfaces/IDistributionCreator.sol";
import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";

interface IAuctionFactory {
    function createNewAuction(
        address _want,
        address _receiver,
        address _governance
    ) external returns (address);
}

/// @title AuctionMiddleMan
/// @dev Serves as the `auction` contract for strategies that receive KAT tokens.
///    Will simply forward any kicks to a real auction contract for non-KAT tokens.
///    For KAT tokens, it will create a campaign with MERKL for the amount kicked.
contract AuctionMiddleMan is Governance {
    using SafeERC20 for ERC20;

    event StrategyAdded(address indexed strategy);
    event StrategyRemoved(address indexed strategy);
    event CampaignDurationSet(uint32 campaignDuration);
    event KatFeeSet(uint256 katFee);
    event FeeRecipientSet(address feeRecipient);

    struct Strategy {
        address auction;
        bytes campaignData;
    }

    modifier onlyAddedStrategy() {
        require(
            _isAddedStrategy(msg.sender),
            "AuctionMiddleMan: Not a strategy"
        );
        _;
    }

    function _isAddedStrategy(address _strategy) internal view returns (bool) {
        return strategies[_strategy].auction != address(0);
    }

    IAuctionFactory public constant AUCTION_FACTORY =
        IAuctionFactory(0xCfA510188884F199fcC6e750764FAAbE6e56ec40);

    IDistributionCreator public constant DISTRIBUTION_CREATOR =
        IDistributionCreator(0x8BB4C975Ff3c250e0ceEA271728547f3802B36Fd);

    address public constant KAT = 0x7F1f4b4b29f5058fA32CC7a97141b8D7e5ABDC2d;

    address public constant WKAT = 0x6E9C1F88a960fE63387eb4b71BC525a9313d8461;

    mapping(address => Strategy) public strategies;

    uint256 public lastKatBalance;

    uint32 public campaignDuration;

    uint256 public katFee;

    address public feeRecipient;

    constructor(
        address _governance,
        address _feeRecipient
    ) Governance(_governance) {
        campaignDuration = 1 weeks;
        DISTRIBUTION_CREATOR.acceptConditions();
        katFee = 500;
        feeRecipient = _feeRecipient;
    }

    function addStrategy(
        address _strategy,
        bytes calldata _campaignData
    ) external onlyGovernance {
        require(
            !_isAddedStrategy(_strategy),
            "AuctionMiddleMan: Strategy already added"
        );
        require(_campaignData.length > 0, "AuctionMiddleMan: campaign data");

        address asset = IStrategyInterface(_strategy).asset();
        address management = IStrategyInterface(_strategy).management();
        address auction = AUCTION_FACTORY.createNewAuction(
            asset, // want
            _strategy, // receiver
            management // governance
        );

        strategies[_strategy] = Strategy({
            auction: auction,
            campaignData: _campaignData
        });

        emit StrategyAdded(_strategy);
    }

    function removeStrategy(address _strategy) external onlyGovernance {
        require(
            _isAddedStrategy(_strategy),
            "AuctionMiddleMan: Strategy not added"
        );
        delete strategies[_strategy];

        emit StrategyRemoved(_strategy);
    }

    function setAuction(
        address _strategy,
        address _auction
    ) external onlyGovernance {
        require(
            _isAddedStrategy(_strategy),
            "AuctionMiddleMan: Strategy not added"
        );
        require(_auction != address(0), "AuctionMiddleMan: zero address");
        strategies[_strategy].auction = _auction;
    }

    function setCampaignData(
        address _strategy,
        bytes calldata _campaignData
    ) external onlyGovernance {
        require(
            _isAddedStrategy(_strategy),
            "AuctionMiddleMan: Strategy not added"
        );
        require(_campaignData.length > 0, "AuctionMiddleMan: campaign data");
        strategies[_strategy].campaignData = _campaignData;
    }

    function setCampaignDuration(
        uint32 _campaignDuration
    ) external onlyGovernance {
        require(
            _campaignDuration > 1 days,
            "AuctionMiddleMan: Campaign duration"
        );
        campaignDuration = _campaignDuration;

        emit CampaignDurationSet(_campaignDuration);
    }

    function setKatFee(uint256 _katFee) external onlyGovernance {
        require(_katFee <= 1000, "AuctionMiddleMan: kat fee");
        katFee = _katFee;

        emit KatFeeSet(_katFee);
    }

    function setFeeRecipient(address _feeRecipient) external onlyGovernance {
        require(_feeRecipient != address(0), "AuctionMiddleMan: zero address");
        feeRecipient = _feeRecipient;

        emit FeeRecipientSet(_feeRecipient);
    }

    function want() external view returns (address) {
        return IStrategyInterface(msg.sender).asset();
    }

    function receiver() external view returns (address) {
        return msg.sender;
    }

    function isActive(address _token) external view returns (bool) {
        return IAuction(strategies[msg.sender].auction).isActive(_token);
    }

    function available(address _token) external view returns (uint256) {
        return IAuction(strategies[msg.sender].auction).available(_token);
    }

    function kick(address _token) external onlyAddedStrategy returns (uint256) {
        if (_token == KAT || _token == WKAT) {
            return _createCampaign(strategies[msg.sender].campaignData);
        } else {
            uint256 _kicked = ERC20(_token).balanceOf(address(this));
            address auction = strategies[msg.sender].auction;

            if (_kicked > 0) {
                ERC20(_token).safeTransfer(auction, _kicked);
            }

            return IAuction(auction).kick(_token);
        }
    }

    function _createCampaign(
        bytes memory _campaignData
    ) internal returns (uint256) {
        uint256 katBalance = ERC20(KAT).balanceOf(address(this));
        uint256 kicked = katBalance - lastKatBalance;

        if (kicked == 0) return 0;

        require(
            ERC20(WKAT).balanceOf(address(this)) >= kicked,
            "AuctionMiddleMan: not enough WKAT"
        );

        if (katFee > 0) {
            uint256 fee = (kicked * katFee) / 10_000;
            kicked -= fee;
            katBalance -= fee;

            ERC20(KAT).safeTransfer(feeRecipient, fee);
        }

        // Update lastKatBalance for next kick
        lastKatBalance = katBalance;

        ERC20(WKAT).forceApprove(address(DISTRIBUTION_CREATOR), kicked);

        DISTRIBUTION_CREATOR.createCampaign(
            CampaignParameters({
                campaignId: bytes32(0),
                creator: address(0),
                rewardToken: WKAT,
                amount: kicked,
                campaignType: 18,
                startTimestamp: uint32(block.timestamp),
                duration: campaignDuration,
                campaignData: _campaignData
            })
        );

        return kicked;
    }

    function wrapKat(uint256 _amount) external onlyGovernance {
        require(
            ERC20(KAT).balanceOf(address(this)) >= _amount,
            "AuctionMiddleMan: not enough KAT"
        );
        ERC20(KAT).safeTransfer(WKAT, _amount);

        lastKatBalance -= _amount;
    }

    function syncKatBalance() external onlyGovernance {
        lastKatBalance = ERC20(KAT).balanceOf(address(this));
    }

    function sweep(
        address _token,
        uint256 _amount,
        address _to
    ) external onlyGovernance {
        uint256 balance = ERC20(_token).balanceOf(address(this));
        if (balance < _amount) {
            _amount = balance;
        }

        if (_token == KAT) {
            lastKatBalance -= _amount;
        }

        ERC20(_token).safeTransfer(_to, _amount);
    }
}

// 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 v5.0.0) (interfaces/IERC165.sol)

pragma solidity ^0.8.20;

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

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

pragma solidity ^0.8.20;

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.3.0) (interfaces/IERC4626.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../token/ERC20/IERC20.sol";
import {IERC20Metadata} from "../token/ERC20/extensions/IERC20Metadata.sol";

/**
 * @dev Interface of the ERC-4626 "Tokenized Vault Standard", as defined in
 * https://eips.ethereum.org/EIPS/eip-4626[ERC-4626].
 */
interface IERC4626 is IERC20, IERC20Metadata {
    event Deposit(address indexed sender, address indexed owner, uint256 assets, uint256 shares);

    event Withdraw(
        address indexed sender,
        address indexed receiver,
        address indexed owner,
        uint256 assets,
        uint256 shares
    );

    /**
     * @dev Returns the address of the underlying token used for the Vault for accounting, depositing, and withdrawing.
     *
     * - MUST be an ERC-20 token contract.
     * - MUST NOT revert.
     */
    function asset() external view returns (address assetTokenAddress);

    /**
     * @dev Returns the total amount of the underlying asset that is “managed” by Vault.
     *
     * - SHOULD include any compounding that occurs from yield.
     * - MUST be inclusive of any fees that are charged against assets in the Vault.
     * - MUST NOT revert.
     */
    function totalAssets() external view returns (uint256 totalManagedAssets);

    /**
     * @dev Returns the amount of shares that the Vault would exchange for the amount of assets provided, in an ideal
     * scenario where all the conditions are met.
     *
     * - MUST NOT be inclusive of any fees that are charged against assets in the Vault.
     * - MUST NOT show any variations depending on the caller.
     * - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange.
     * - MUST NOT revert.
     *
     * NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the
     * “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and
     * from.
     */
    function convertToShares(uint256 assets) external view returns (uint256 shares);

    /**
     * @dev Returns the amount of assets that the Vault would exchange for the amount of shares provided, in an ideal
     * scenario where all the conditions are met.
     *
     * - MUST NOT be inclusive of any fees that are charged against assets in the Vault.
     * - MUST NOT show any variations depending on the caller.
     * - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange.
     * - MUST NOT revert.
     *
     * NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the
     * “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and
     * from.
     */
    function convertToAssets(uint256 shares) external view returns (uint256 assets);

    /**
     * @dev Returns the maximum amount of the underlying asset that can be deposited into the Vault for the receiver,
     * through a deposit call.
     *
     * - MUST return a limited value if receiver is subject to some deposit limit.
     * - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of assets that may be deposited.
     * - MUST NOT revert.
     */
    function maxDeposit(address receiver) external view returns (uint256 maxAssets);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their deposit at the current block, given
     * current on-chain conditions.
     *
     * - MUST return as close to and no more than the exact amount of Vault shares that would be minted in a deposit
     *   call in the same transaction. I.e. deposit should return the same or more shares as previewDeposit if called
     *   in the same transaction.
     * - MUST NOT account for deposit limits like those returned from maxDeposit and should always act as though the
     *   deposit would be accepted, regardless if the user has enough tokens approved, etc.
     * - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToShares and previewDeposit SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by depositing.
     */
    function previewDeposit(uint256 assets) external view returns (uint256 shares);

    /**
     * @dev Mints shares Vault shares to receiver by depositing exactly amount of underlying tokens.
     *
     * - MUST emit the Deposit event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
     *   deposit execution, and are accounted for during deposit.
     * - MUST revert if all of assets cannot be deposited (due to deposit limit being reached, slippage, the user not
     *   approving enough underlying tokens to the Vault contract, etc).
     *
     * NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token.
     */
    function deposit(uint256 assets, address receiver) external returns (uint256 shares);

    /**
     * @dev Returns the maximum amount of the Vault shares that can be minted for the receiver, through a mint call.
     * - MUST return a limited value if receiver is subject to some mint limit.
     * - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of shares that may be minted.
     * - MUST NOT revert.
     */
    function maxMint(address receiver) external view returns (uint256 maxShares);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their mint at the current block, given
     * current on-chain conditions.
     *
     * - MUST return as close to and no fewer than the exact amount of assets that would be deposited in a mint call
     *   in the same transaction. I.e. mint should return the same or fewer assets as previewMint if called in the
     *   same transaction.
     * - MUST NOT account for mint limits like those returned from maxMint and should always act as though the mint
     *   would be accepted, regardless if the user has enough tokens approved, etc.
     * - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToAssets and previewMint SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by minting.
     */
    function previewMint(uint256 shares) external view returns (uint256 assets);

    /**
     * @dev Mints exactly shares Vault shares to receiver by depositing amount of underlying tokens.
     *
     * - MUST emit the Deposit event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the mint
     *   execution, and are accounted for during mint.
     * - MUST revert if all of shares cannot be minted (due to deposit limit being reached, slippage, the user not
     *   approving enough underlying tokens to the Vault contract, etc).
     *
     * NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token.
     */
    function mint(uint256 shares, address receiver) external returns (uint256 assets);

    /**
     * @dev Returns the maximum amount of the underlying asset that can be withdrawn from the owner balance in the
     * Vault, through a withdraw call.
     *
     * - MUST return a limited value if owner is subject to some withdrawal limit or timelock.
     * - MUST NOT revert.
     */
    function maxWithdraw(address owner) external view returns (uint256 maxAssets);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their withdrawal at the current block,
     * given current on-chain conditions.
     *
     * - MUST return as close to and no fewer than the exact amount of Vault shares that would be burned in a withdraw
     *   call in the same transaction. I.e. withdraw should return the same or fewer shares as previewWithdraw if
     *   called
     *   in the same transaction.
     * - MUST NOT account for withdrawal limits like those returned from maxWithdraw and should always act as though
     *   the withdrawal would be accepted, regardless if the user has enough shares, etc.
     * - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToShares and previewWithdraw SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by depositing.
     */
    function previewWithdraw(uint256 assets) external view returns (uint256 shares);

    /**
     * @dev Burns shares from owner and sends exactly assets of underlying tokens to receiver.
     *
     * - MUST emit the Withdraw event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
     *   withdraw execution, and are accounted for during withdraw.
     * - MUST revert if all of assets cannot be withdrawn (due to withdrawal limit being reached, slippage, the owner
     *   not having enough shares, etc).
     *
     * Note that some implementations will require pre-requesting to the Vault before a withdrawal may be performed.
     * Those methods should be performed separately.
     */
    function withdraw(uint256 assets, address receiver, address owner) external returns (uint256 shares);

    /**
     * @dev Returns the maximum amount of Vault shares that can be redeemed from the owner balance in the Vault,
     * through a redeem call.
     *
     * - MUST return a limited value if owner is subject to some withdrawal limit or timelock.
     * - MUST return balanceOf(owner) if owner is not subject to any withdrawal limit or timelock.
     * - MUST NOT revert.
     */
    function maxRedeem(address owner) external view returns (uint256 maxShares);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their redemption at the current block,
     * given current on-chain conditions.
     *
     * - MUST return as close to and no more than the exact amount of assets that would be withdrawn in a redeem call
     *   in the same transaction. I.e. redeem should return the same or more assets as previewRedeem if called in the
     *   same transaction.
     * - MUST NOT account for redemption limits like those returned from maxRedeem and should always act as though the
     *   redemption would be accepted, regardless if the user has enough shares, etc.
     * - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToAssets and previewRedeem SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by redeeming.
     */
    function previewRedeem(uint256 shares) external view returns (uint256 assets);

    /**
     * @dev Burns exactly shares from owner and sends assets of underlying tokens to receiver.
     *
     * - MUST emit the Withdraw event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
     *   redeem execution, and are accounted for during redeem.
     * - MUST revert if all of shares cannot be redeemed (due to withdrawal limit being reached, slippage, the owner
     *   not having enough shares, etc).
     *
     * NOTE: some implementations will require pre-requesting to the Vault before a withdrawal may be performed.
     * Those methods should be performed separately.
     */
    function redeem(uint256 shares, address receiver, address owner) external returns (uint256 assets);
}

// 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
// OpenZeppelin Contracts (last updated v5.3.0) (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 ERC-20
 * applications.
 */
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}.
     *
     * Both 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}.
     *
     * 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 {
        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 {
        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 v5.1.0) (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) (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) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[ERC-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC-20 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 v5.3.0) (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 Variant of {safeTransfer} that returns a bool instead of reverting if the operation is not successful.
     */
    function trySafeTransfer(IERC20 token, address to, uint256 value) internal returns (bool) {
        return _callOptionalReturnBool(token, abi.encodeCall(token.transfer, (to, value)));
    }

    /**
     * @dev Variant of {safeTransferFrom} that returns a bool instead of reverting if the operation is not successful.
     */
    function trySafeTransferFrom(IERC20 token, address from, address to, uint256 value) internal returns (bool) {
        return _callOptionalReturnBool(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 v5.0.1) (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 v5.1.0) (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);
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity >=0.8.18;

import {IStrategy} from "@tokenized-strategy/interfaces/IStrategy.sol";

interface IBaseHealthCheck is IStrategy {
    function doHealthCheck() external view returns (bool);

    function profitLimitRatio() external view returns (uint256);

    function lossLimitRatio() external view returns (uint256);

    function setProfitLimitRatio(uint256 _newProfitLimitRatio) external;

    function setLossLimitRatio(uint256 _newLossLimitRatio) external;

    function setDoHealthCheck(bool _doHealthCheck) external;
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity >=0.8.18;

contract Governance {
    /// @notice Emitted when the governance address is updated.
    event GovernanceTransferred(
        address indexed previousGovernance,
        address indexed newGovernance
    );

    modifier onlyGovernance() {
        _checkGovernance();
        _;
    }

    /// @notice Checks if the msg sender is the governance.
    function _checkGovernance() internal view virtual {
        require(governance == msg.sender, "!governance");
    }

    /// @notice Address that can set the default base fee and provider
    address public governance;

    constructor(address _governance) {
        governance = _governance;

        emit GovernanceTransferred(address(0), _governance);
    }

    /**
     * @notice Sets a new address as the governance of the contract.
     * @dev Throws if the caller is not current governance.
     * @param _newGovernance The new governance address.
     */
    function transferGovernance(
        address _newGovernance
    ) external virtual onlyGovernance {
        require(_newGovernance != address(0), "ZERO ADDRESS");
        address oldGovernance = governance;
        governance = _newGovernance;

        emit GovernanceTransferred(oldGovernance, _newGovernance);
    }
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity >=0.8.18;

interface IBaseStrategy {
    function tokenizedStrategyAddress() external view returns (address);

    /*//////////////////////////////////////////////////////////////
                            IMMUTABLE FUNCTIONS
    //////////////////////////////////////////////////////////////*/

    function availableDepositLimit(
        address _owner
    ) external view returns (uint256);

    function availableWithdrawLimit(
        address _owner
    ) external view returns (uint256);

    function deployFunds(uint256 _assets) external;

    function freeFunds(uint256 _amount) external;

    function harvestAndReport() external returns (uint256);

    function tendThis(uint256 _totalIdle) external;

    function shutdownWithdraw(uint256 _amount) external;

    function tendTrigger() external view returns (bool, bytes memory);
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity >=0.8.18;

import {ITokenizedStrategy} from "./ITokenizedStrategy.sol";
import {IBaseStrategy} from "./IBaseStrategy.sol";

interface IStrategy is IBaseStrategy, ITokenizedStrategy {}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity >=0.8.18;

import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {IERC4626} from "@openzeppelin/contracts/interfaces/IERC4626.sol";
import {IERC20Permit} from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Permit.sol";

// Interface that implements the 4626 standard and the implementation functions
interface ITokenizedStrategy is IERC4626, IERC20Permit {
    /*//////////////////////////////////////////////////////////////
                                 EVENTS
    //////////////////////////////////////////////////////////////*/

    event StrategyShutdown();

    event NewTokenizedStrategy(
        address indexed strategy,
        address indexed asset,
        string apiVersion
    );

    event Reported(
        uint256 profit,
        uint256 loss,
        uint256 protocolFees,
        uint256 performanceFees
    );

    event UpdatePerformanceFeeRecipient(
        address indexed newPerformanceFeeRecipient
    );

    event UpdateKeeper(address indexed newKeeper);

    event UpdatePerformanceFee(uint16 newPerformanceFee);

    event UpdateManagement(address indexed newManagement);

    event UpdateEmergencyAdmin(address indexed newEmergencyAdmin);

    event UpdateProfitMaxUnlockTime(uint256 newProfitMaxUnlockTime);

    event UpdatePendingManagement(address indexed newPendingManagement);

    /*//////////////////////////////////////////////////////////////
                           INITIALIZATION
    //////////////////////////////////////////////////////////////*/

    function initialize(
        address _asset,
        string memory _name,
        address _management,
        address _performanceFeeRecipient,
        address _keeper
    ) external;

    /*//////////////////////////////////////////////////////////////
                    NON-STANDARD 4626 OPTIONS
    //////////////////////////////////////////////////////////////*/

    function withdraw(
        uint256 assets,
        address receiver,
        address owner,
        uint256 maxLoss
    ) external returns (uint256);

    function redeem(
        uint256 shares,
        address receiver,
        address owner,
        uint256 maxLoss
    ) external returns (uint256);

    function maxWithdraw(
        address owner,
        uint256 /*maxLoss*/
    ) external view returns (uint256);

    function maxRedeem(
        address owner,
        uint256 /*maxLoss*/
    ) external view returns (uint256);

    /*//////////////////////////////////////////////////////////////
                        MODIFIER HELPERS
    //////////////////////////////////////////////////////////////*/

    function requireManagement(address _sender) external view;

    function requireKeeperOrManagement(address _sender) external view;

    function requireEmergencyAuthorized(address _sender) external view;

    /*//////////////////////////////////////////////////////////////
                        KEEPERS FUNCTIONS
    //////////////////////////////////////////////////////////////*/

    function tend() external;

    function report() external returns (uint256 _profit, uint256 _loss);

    /*//////////////////////////////////////////////////////////////
                        CONSTANTS
    //////////////////////////////////////////////////////////////*/

    function MAX_FEE() external view returns (uint16);

    function FACTORY() external view returns (address);

    /*//////////////////////////////////////////////////////////////
                            GETTERS
    //////////////////////////////////////////////////////////////*/

    function apiVersion() external view returns (string memory);

    function pricePerShare() external view returns (uint256);

    function management() external view returns (address);

    function pendingManagement() external view returns (address);

    function keeper() external view returns (address);

    function emergencyAdmin() external view returns (address);

    function performanceFee() external view returns (uint16);

    function performanceFeeRecipient() external view returns (address);

    function fullProfitUnlockDate() external view returns (uint256);

    function profitUnlockingRate() external view returns (uint256);

    function profitMaxUnlockTime() external view returns (uint256);

    function lastReport() external view returns (uint256);

    function isShutdown() external view returns (bool);

    function unlockedShares() external view returns (uint256);

    /*//////////////////////////////////////////////////////////////
                            SETTERS
    //////////////////////////////////////////////////////////////*/

    function setPendingManagement(address) external;

    function acceptManagement() external;

    function setKeeper(address _keeper) external;

    function setEmergencyAdmin(address _emergencyAdmin) external;

    function setPerformanceFee(uint16 _performanceFee) external;

    function setPerformanceFeeRecipient(
        address _performanceFeeRecipient
    ) external;

    function setProfitMaxUnlockTime(uint256 _profitMaxUnlockTime) external;

    function setName(string calldata _newName) external;

    function shutdownStrategy() external;

    function emergencyWithdraw(uint256 _amount) external;
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity ^0.8.18;

interface IAuction {
    event AuctionDisabled(address indexed from, address indexed to);
    event AuctionEnabled(address indexed from, address indexed to);
    event AuctionKicked(address from, uint256 available);
    event GovernanceTransferred(
        address indexed previousGovernance,
        address indexed newGovernance
    );
    event UpdatePendingGovernance(address indexed newPendingGovernance);
    event UpdatedStartingPrice(uint256 startingPrice);

    struct AuctionInfo {
        uint64 kicked;
        uint64 scaler;
        uint128 initialAvailable;
    }

    function acceptGovernance() external;
    function auctionLength() external view returns (uint256);
    function auctions(address) external view returns (AuctionInfo memory);
    function available(address _from) external view returns (uint256);
    function disable(address _from) external;
    function disable(address _from, uint256 _index) external;
    function enable(address _from) external;
    function enabledAuctions(uint256) external view returns (address);
    function getAllEnabledAuctions() external view returns (address[] memory);
    function getAmountNeeded(address _from) external view returns (uint256);
    function getAmountNeeded(
        address _from,
        uint256 _amountToTake,
        uint256 _timestamp
    ) external view returns (uint256);
    function getAmountNeeded(
        address _from,
        uint256 _amountToTake
    ) external view returns (uint256);
    function governance() external view returns (address);
    function initialize(
        address _want,
        address _receiver,
        address _governance,
        uint256 _auctionLength,
        uint256 _startingPrice
    ) external;
    function isActive(address _from) external view returns (bool);
    function isValidSignature(
        bytes32 _hash,
        bytes calldata signature
    ) external view returns (bytes4);
    function kick(address _from) external returns (uint256 _available);
    function kickable(address _from) external view returns (uint256);
    function kicked(address _from) external view returns (uint256);
    function pendingGovernance() external view returns (address);
    function price(
        address _from,
        uint256 _timestamp
    ) external view returns (uint256);
    function price(address _from) external view returns (uint256);
    function receiver() external view returns (address);
    function setStartingPrice(uint256 _startingPrice) external;
    function settle(address _from) external;
    function startingPrice() external view returns (uint256);
    function sweep(address _token) external;
    function take(address _from) external returns (uint256);
    function take(address _from, uint256 _maxAmount) external returns (uint256);
    function take(
        address _from,
        uint256 _maxAmount,
        address _receiver,
        bytes calldata _data
    ) external returns (uint256);
    function take(
        address _from,
        uint256 _maxAmount,
        address _receiver
    ) external returns (uint256);
    function transferGovernance(address _newGovernance) external;
    function want() external view returns (address);
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity ^0.8.0;

struct CampaignParameters {
    // POPULATED ONCE CREATED

    // ID of the campaign. This can be left as a null bytes32 when creating campaigns
    // on Merkl.
    bytes32 campaignId;
    // CHOSEN BY CAMPAIGN CREATOR

    // Address of the campaign creator, if marked as address(0), it will be overriden with the
    // address of the `msg.sender` creating the campaign
    address creator;
    // Address of the token used as a reward
    address rewardToken;
    // Amount of `rewardToken` to distribute across all the epochs
    // Amount distributed per epoch is `amount/numEpoch`
    uint256 amount;
    // Type of campaign
    uint32 campaignType;
    // Timestamp at which the campaign should start
    uint32 startTimestamp;
    // Duration of the campaign in seconds. Has to be a multiple of EPOCH = 3600
    uint32 duration;
    // Extra data to pass to specify the campaign
    bytes campaignData;
}

interface IDistributionCreator {
    function createCampaign(
        CampaignParameters calldata _campaignParameters
    ) external returns (bytes32);
    function acceptConditions() external;
}

pragma solidity ^0.8.18;

interface IMerklDistributor {
    /// @notice Claims rewards for a given set of users
    /// @dev Anyone may call this function for anyone else, funds go to destination regardless, it's just a question of
    /// who provides the proof and pays the gas: `msg.sender` is used only for addresses that require a trusted operator
    /// @param users Recipient of tokens
    /// @param tokens ERC20 claimed
    /// @param amounts Amount of tokens that will be sent to the corresponding users
    /// @param proofs Array of hashes bridging from a leaf `(hash of user | token | amount)` to the Merkle root
    function claim(
        address[] calldata users,
        address[] calldata tokens,
        uint256[] calldata amounts,
        bytes32[][] calldata proofs
    ) external;
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity ^0.8.18;

import {IBaseHealthCheck} from "@periphery/Bases/HealthCheck/IBaseHealthCheck.sol";
import {IMerklDistributor} from "./IMerklDistributor.sol";

interface IStrategyInterface is IBaseHealthCheck {
    function lpValueInAsset()
        external
        view
        returns (uint256 valueLpInAssetTerms);

    function STEER_LP() external view returns (address);
    function MERKL_DISTRIBUTOR() external view returns (IMerklDistributor);

    function estimatedTotalAsset() external view returns (uint256);

    function uniswapV3SwapCallback(
        int256 amount0Delta,
        int256 amount1Delta,
        bytes calldata _data
    ) external;

    // Management parameters
    function targetIdleAssetBps() external view returns (uint16);
    function targetIdleBufferBps() external view returns (uint16);
    function pairedTokenDiscountBps() external view returns (uint16);
    function depositLimit() external view returns (uint256);
    function maxSwapValue() external view returns (uint256);
    function minAsset() external view returns (uint128);
    function useAuctions() external view returns (bool);
    function auction() external view returns (address);
    function minTendWait() external view returns (uint24);
    function maxTendBaseFeeGwei() external view returns (uint8);
    function lastTend() external view returns (uint64);

    // Management functions
    function setAuction(address _auction) external;
    function setDepositLimit(uint256 _depositLimit) external;
    function setTargetIdleAssetBps(uint16 _targetIdleAssetBps) external;
    function setTargetIdleBufferBps(uint16 _targetIdleBufferBps) external;
    function setPairedTokenDiscountBps(uint16 _pairedTokenDiscountBps) external;
    function setMinAsset(uint128 _minAsset) external;
    function setMaxSwapValue(uint256 _maxSwapValue) external;
    function setUseAuctions(bool _useAuctions) external;
    function setMinTendWait(uint24 _minTendWait) external;
    function setMaxTendBaseFee(uint8 _maxTendBaseFeeGwei) external;
    function manualSwapPairedTokenToAsset(uint256 _amount) external;
    function manualWithdrawFromLp(uint256 _amount) external;

    // Auction functions
    function kickAuction(address _from) external returns (uint256);
    function claim(
        address[] calldata users,
        address[] calldata tokens,
        uint256[] calldata amounts,
        bytes32[][] calldata proofs
    ) external;
}

{
  "evmVersion": "shanghai",
  "libraries": {},
  "metadata": {
    "appendCBOR": true,
    "bytecodeHash": "ipfs",
    "useLiteralContent": false
  },
  "optimizer": {
    "enabled": true,
    "runs": 1000000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "remappings": [
    "@openzeppelin/=lib/openzeppelin-contracts/",
    "forge-std/=lib/forge-std/src/",
    "@tokenized-strategy/=lib/tokenized-strategy/src/",
    "@periphery/=lib/tokenized-strategy-periphery/src/",
    "@uniswap-v3-core/=lib/uniswap-v3-core/contracts/",
    "@yearn-vaults/=lib/tokenized-strategy-periphery/lib/yearn-vaults-v3/contracts/",
    "createx-forge/=lib/createx-forge/",
    "ds-test/=lib/forge-std/lib/ds-test/src/",
    "erc4626-tests/=lib/tokenized-strategy/lib/erc4626-tests/",
    "halmos-cheatcodes/=lib/openzeppelin-contracts/lib/halmos-cheatcodes/src/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/",
    "openzeppelin/=lib/tokenized-strategy/lib/openzeppelin-contracts/contracts/",
    "tokenized-strategy-periphery/=lib/tokenized-strategy-periphery/",
    "tokenized-strategy/=lib/tokenized-strategy/",
    "uniswap-v3-core/=lib/uniswap-v3-core/contracts/",
    "yearn-vaults-v3/=lib/tokenized-strategy-periphery/lib/yearn-vaults-v3/"
  ],
  "viaIR": true
}

• No Contract Security Audit Submitted- Submit Audit Here

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000000000000000000000000be7c7efc1ef3245d37e3157f76a512108d6d7ae6000000000000000000000000be7c7efc1ef3245d37e3157f76a512108d6d7ae6

-----Decoded View---------------
Arg [0] : _governance (address): 0xBe7c7efc1ef3245d37E3157F76A512108D6D7aE6
Arg [1] : _feeRecipient (address): 0xBe7c7efc1ef3245d37E3157F76A512108D6D7aE6

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 000000000000000000000000be7c7efc1ef3245d37e3157f76a512108d6d7ae6
Arg [1] : 000000000000000000000000be7c7efc1ef3245d37e3157f76a512108d6d7ae6