Forkchoice Ethereum Mainnet

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/utils/ReentrancyGuard.sol";



/**
 * @title PendleAdapter
 * @notice Production-grade adapter for Pendle LP strategy
 * @dev This adapter is an EXECUTOR ONLY - all pricing, slippage, and routing
 *      is handled OFF-CHAIN via Pendle SDK or Hosted API.
 * 
 * Architecture:
 * - Backend/Keeper generates swap parameters (SwapData, GuessPtReceivedFromSy, minOut)
 * - Adapter executes the zap with provided parameters
 * - NO on-chain price calculations
 * - NO on-chain swap calldata building
 * - Follows Yearn-style adapter architecture
 */

 //VAULT 0x1B6Bb412a7E077958C9FdA5e6f0235dbB22F7a8B
 //usdc 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48
 //usdt 0xdAC17F958D2ee523a2206206994597C13D831ec7
 //lptoken 0x6D520a943a4Da0784917a2e71defe95248A1DaA1
	//market	address 0x6D520a943a4Da0784917a2e71defe95248A1DaA1
 //ZapRouter  0x888888888889758F76e7103c6CbF23ABbF58F946
// NEW DEPLOY 0xCbFDBAe49883E378752fF3F64bf8d89562912Da6
 
// ========= Pendle Router Structs (must match ABI exactly) =========

interface IPMarket {
    function getRewardTokens() external view returns (address[] memory);
    function redeemRewards(address user) external returns (uint256[] memory);
}
/// =======================
/// IPAllActionV3 (minimal)
/// =======================
interface IPAllActionV3 {
    struct ApproxParams {
        uint256 guessMin;
        uint256 guessMax;
        uint256 guessOffchain;
        uint256 maxIteration;
        uint256 eps;
    }

    // EXACTLY: (uint256,address,bytes,bool)
    struct SwapData {
        uint8 swapType;
        address extRouter;
        bytes extCalldata;
        bool needScale;
    }

    // EXACTLY: (address,uint256,address,address,SwapData)
    struct TokenInput {
        address tokenIn;
        uint256 netTokenIn;
        address tokenMintSy;
        address pendleSwap;
        SwapData swapData;
    }

    // EXACTLY (for removeLiquidity): (address,uint256,address,address,SwapData) but as output params
    struct TokenOutput {
        address tokenOut;
        uint256 minTokenOut;
        address tokenRedeemSy;
        address pendleSwap;
        SwapData swapData;
    }

    /**
     * @dev Minimal placeholder for tuple element type.
     * If in future you actually pass fills (non-empty), you MUST match Pendle's real struct.
     * With empty arrays, ABI encoding is still correct.
     */
    struct FillOrderParams {
        bytes order;
        bytes signature;
        uint256 makingAmount;
        uint256 takingAmount;
    }

    // EXACTLY: (address,uint256,tuple[],tuple[],bytes)
    struct LimitOrderData {
        address limitRouter;
        uint256 epsSkipMarket;
        FillOrderParams[] normalFills;
        FillOrderParams[] flashFills;
        bytes optData;
    }

    function addLiquiditySingleToken(
        address receiver,
        address market,
        uint256 minLpOut,
        ApproxParams calldata approx,
        TokenInput calldata input,
        LimitOrderData calldata limit
    ) external payable returns (uint256 netLpOut, uint256 netSyFee, uint256 netSyInterm);

    function removeLiquiditySingleToken(
        address receiver,
        address market,
        uint256 netLpToRemove,
        TokenOutput calldata output,
        LimitOrderData calldata limit
    ) external returns (uint256 netTokenOut, uint256 netSyFee, uint256 netSyInterm);
}

// ========= Main Contract =========

contract PendleAdapter is Ownable, ReentrancyGuard {
    using SafeERC20 for IERC20;

    // ========= Immutable State =========
    IERC20 public  lpToken;        // Pendle LP token
    address public  market;        // Pendle market address (gauge embedded)
    IPAllActionV3 public immutable router;
    // NEW: market interface for rewards
    IPMarket public  marketRewards;

    // ========= Mutable State =========
    address public vault;                   // Authorized vault address
    mapping(address => bool) public supportedTokens; // Supported tokens (USDC, USDT, etc.)
      // NEW: where harvested rewards are sent (default: vault)
    address public rewardRecipient;
    // ========= Events =========
    event Deposited(uint256 tokenAmount, uint256 lpReceived, address indexed token);
    event Withdrawn(uint256 lpAmount, uint256 tokenReceived, address indexed token);
    event VaultUpdated(address indexed oldVault, address indexed newVault);
    event TokenSupported(address indexed token, bool supported);

     // NEW events
    event RewardRecipientUpdated(address indexed oldRecipient, address indexed newRecipient);
    event RewardsHarvested(address indexed caller, address indexed recipient, address[] rewardTokens, uint256[] amounts);


    // ========= Errors =========
    error ZeroAddress();
    error ZeroAmount();
    error NotVault();
    error InvalidInput();
    error ZapFailed();
     error NotAuthorized();
     error BadCalldataSelector();
    error BadCalldataReceiver();
    error BadCalldataMarket();


    // ========= Modifiers =========
    modifier onlyVault() {
        if (msg.sender != vault) revert NotVault();
        _;
    }

    // optional: allow a keeper to harvest (owner sets it)
    address public keeper;

    modifier onlyVaultOrKeeper() {
        if (msg.sender != vault && msg.sender != keeper) revert NotAuthorized();
        _;
    }

    constructor(
        address _vault,
        address _lpToken,
        address _market,
        address  _router
    ) Ownable(msg.sender) {
        if (_vault == address(0) || _lpToken == address(0) || 
            _market == address(0) || _router == address(0)) revert ZeroAddress();
        
        vault = _vault;
        lpToken = IERC20(_lpToken);
        market = _market;
        router = IPAllActionV3(_router);

        // NEW
        marketRewards = IPMarket(_market);
        rewardRecipient = _vault;
    }


function setKeeper(address _keeper) external onlyOwner {
        keeper = _keeper; // can be zero to disable
    }

    function setRewardRecipient(address _recipient) external onlyOwner {
        if (_recipient == address(0)) revert ZeroAddress();
        address old = rewardRecipient;
        rewardRecipient = _recipient;
        emit RewardRecipientUpdated(old, _recipient);
    }
    // ========= Token Management =========

    /**
     * @notice Add or remove a supported token
     * @param token Token address to set
     * @param supported Whether the token is supported
     */
    function setSupportedToken(address token, bool supported) external onlyOwner {
        if (token == address(0)) revert ZeroAddress();
        supportedTokens[token] = supported;
        emit TokenSupported(token, supported);
    }
// -------------------- NEW: rewards view helpers --------------------

    /// @notice Reward tokens for this market (can include PENDLE + others)
    function getMarketRewardTokens() external view returns (address[] memory) {
        return marketRewards.getRewardTokens();
    }

      // -------------------- NEW: harvest rewards --------------------
    /**
     * @notice Claims (redeems) market rewards accrued by this Adapter (LP holder).
     * @dev Pendle V2 rewards for LP holders are claimed via Market.redeemRewards(adapter).
     *      This does NOT unstake anything; gauge is embedded in the market. :contentReference[oaicite:2]{index=2}
     *
     * @param recipient Where to send harvested rewards (if zero, uses rewardRecipient)
     * @return rewardTokens tokens claimed
     * @return amounts amounts claimed (same order as rewardTokens)
     */
    function harvestRewards(address recipient)
        external
        nonReentrant
        onlyVaultOrKeeper
        returns (address[] memory rewardTokens, uint256[] memory amounts)
    {
        address to = recipient == address(0) ? rewardRecipient : recipient;

        rewardTokens = marketRewards.getRewardTokens();

        // Claim rewards for THIS adapter address
        amounts = marketRewards.redeemRewards(address(this));

        // Send claimed tokens to recipient
        // Note: redeemRewards returns amounts in order of getRewardTokens() :contentReference[oaicite:3]{index=3}
        for (uint256 i = 0; i < rewardTokens.length; i++) {
            address rt = rewardTokens[i];
            uint256 amt = amounts.length > i ? amounts[i] : 0;
            if (rt != address(0) && amt > 0) {
                IERC20(rt).safeTransfer(to, amt);
            }
        }

        emit RewardsHarvested(msg.sender, to, rewardTokens, amounts);
    }

     /* =========================
        HARDENED ZAP CALL HELPERS
       ========================= */

    function _selector(bytes calldata data) internal pure returns (bytes4 sel) {
        if (data.length < 4) return 0x00000000;
        assembly {
            sel := calldataload(data.offset)
        }
    }

    /**
     * @dev Validates that calldata is calling the expected Pendle router function
     *      and that first 2 args match (receiver, market).
     *
     * ABI: function(receiver, market, ...) => first two args are address,address.
     */
    function _validateRouterCalldata(bytes calldata data) internal view {
        bytes4 sel = _selector(data);

        bytes4 addSel = IPAllActionV3.addLiquiditySingleToken.selector;
        bytes4 remSel = IPAllActionV3.removeLiquiditySingleToken.selector;

        if (sel != addSel && sel != remSel) revert BadCalldataSelector();

        // decode first two args after selector:
        // data layout: 4 bytes selector + ABI encoded args
        // args start at offset 4
        (address receiver, address mkt) = abi.decode(data[4:], (address, address));

        if (receiver != address(this)) revert BadCalldataReceiver();
        if (mkt != market) revert BadCalldataMarket();
    }

    function _approveExactThenZero(IERC20 token, address spender, uint256 amount) internal {
        // forceApprove handles USDT-style approvals
        token.forceApprove(spender, amount);
        // Important: reset after use to minimize allowance misuse window
        token.forceApprove(spender, 0);
    }
    // ========= Zap In (Deposit) =========

    /**
     * @notice Deposit token using pre-built calldata from Pendle API (GENERIC)
     * @dev This is the RECOMMENDED method - uses Pendle API's pre-built calldata
     *      which ensures correct struct encoding and selector matching.
     *      Supports any ERC20 token (USDC, USDT, etc.)
     * 
     * @param token Token address to deposit (must be supported)
     * @param tokenAmount Amount of token to deposit
     * @param routerCalldata Pre-built calldata from Pendle API (routerTx.data)
     * @return lpReceived Amount of LP tokens received
     */
    function depositWithCalldataGeneric(
        address token,
        uint256 tokenAmount,
        bytes calldata routerCalldata
    ) external nonReentrant onlyVault returns (uint256 lpReceived) {
        if (tokenAmount == 0) revert ZeroAmount();
        if (token == address(0)) revert ZeroAddress();
        if (!supportedTokens[token]) revert InvalidInput();

      //  _validateRouterCalldata(routerCalldata);

        IERC20 tokenContract = IERC20(token);

        // 1. Transfer token from caller to adapter (if not already present)
        uint256 currentBalance = tokenContract.balanceOf(address(this));
        if (currentBalance < tokenAmount) {
            uint256 needed = tokenAmount - currentBalance;
            tokenContract.safeTransferFrom(msg.sender, address(this), needed);
        }

        // 2. Approve token to ZapRouter
        // ⭐ CRITICAL: Use forceApprove for USDT compatibility
        // USDT requires allowance to be 0 before setting a new value,
        // and doesn't return true on approve() calls.
        // forceApprove() handles both cases automatically.
        tokenContract.forceApprove(address(router), tokenAmount);

        // 3. Record LP balance before
        uint256 lpBefore = lpToken.balanceOf(address(this));

        // 4. Execute router call with pre-built calldata
        // The calldata is built by Pendle API with correct struct encoding
        (bool success, bytes memory result) = address(router).call(routerCalldata);
        if (!success) {
             // reset allowance before bubbling revert (best effort)
            tokenContract.forceApprove(address(router), 0);
            if (result.length == 0) {
                revert("Router call failed without reason");
            }
            assembly {
                revert(add(result, 32), mload(result))
            }
        }
// Reset allowance after success
        tokenContract.forceApprove(address(router), 0);
        // 5. Calculate LP received
        uint256 lpAfter = lpToken.balanceOf(address(this));
        lpReceived = lpAfter - lpBefore;

        if (lpReceived == 0) revert ZapFailed();
        emit Deposited(tokenAmount, lpReceived, token);
    }

 

   
    function withdrawWithCalldataGeneric(
        address tokenOut,
        uint256 lpAmount,
        bytes calldata routerCalldata
    ) external nonReentrant onlyVault returns (uint256 tokenReceived) {
        if (lpAmount == 0) revert ZeroAmount();
        if (tokenOut == address(0)) revert ZeroAddress();
        if (!supportedTokens[tokenOut]) revert InvalidInput();

       //  _validateRouterCalldata(routerCalldata);
        require(lpToken.balanceOf(address(this)) >= lpAmount, "insufficient LP");

        IERC20 tokenContract = IERC20(tokenOut);

        

        // 1. Approve LP tokens to ZapRouter
        // Using forceApprove for consistency (LP token is standard ERC20 but this is safer)
        lpToken.forceApprove(address(router), lpAmount);

        // 2. Record token balance before
        uint256 tokenBefore = tokenContract.balanceOf(address(this));

        // 3. Execute router call with pre-built calldata
        (bool success, bytes memory result) = address(router).call(routerCalldata);
        if (!success) {
            lpToken.forceApprove(address(router), 0);
            if (result.length == 0) {
                revert("Router call failed without reason");
            }
            assembly {
                revert(add(result, 32), mload(result))
            }
        }
        lpToken.forceApprove(address(router), 0);
        // 4. Calculate token received
        uint256 tokenAfter = tokenContract.balanceOf(address(this));
        tokenReceived = tokenAfter - tokenBefore;

        if (tokenReceived == 0) revert ZapFailed();
     

        // 5. Transfer token to caller
        tokenContract.safeTransfer(msg.sender, tokenReceived);
        emit Withdrawn(lpAmount, tokenReceived, tokenOut);
    }

   

    function underlyingBalance() external view returns (uint256) {
        return lpToken.balanceOf(address(this));
    }

    /**
     * @notice Get idle balance of a specific token
     * @param token Token address to check
     * @return balance Idle balance of the token
     */
    function idleTokenBalance(address token) external view returns (uint256) {
        if (token == address(0)) revert ZeroAddress();
        return IERC20(token).balanceOf(address(this));
    }

    function setVault(address _newVault) external onlyOwner {
        if (_newVault == address(0)) revert ZeroAddress();
        address oldVault = vault;
        vault = _newVault;
        emit VaultUpdated(oldVault, _newVault);
    }
event MarketUpdated(
    address indexed oldMarket,
    address indexed newMarket,
    address oldLpToken,
    address newLpToken
);

    function setMarketAndLpToken(
        address _newMarket,
        address _newLpToken
    ) external onlyOwner {
        if (_newMarket == address(0) || _newLpToken == address(0)) revert ZeroAddress();

        address oldMarket = market;
        address oldLp = address(lpToken);

        market = _newMarket;
        lpToken = IERC20(_newLpToken);
        marketRewards = IPMarket(_newMarket);

        emit MarketUpdated(oldMarket, _newMarket, oldLp, _newLpToken);
    }


    function rescueTokens(address token, address to, uint256 amount) external onlyOwner {
        if (to == address(0)) revert ZeroAddress();
        IERC20(token).safeTransfer(to, amount);
    }

        /* =========================
        LP-BASED WITHDRAW HELPERS
       ========================= */

  

    /// @notice Transfer LP to `to` (for withdrawAlternativeLP in the router)
    function transferLp(address to, uint256 lpAmount) external nonReentrant onlyVault {
        if (to == address(0)) revert ZeroAddress();
        if (lpAmount == 0) revert ZeroAmount();
        lpToken.safeTransfer(to, lpAmount);
    }

}

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

pragma solidity ^0.8.20;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If EIP-1153 (transient storage) is available on the chain you're deploying at,
 * consider using {ReentrancyGuardTransient} instead.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

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

    uint256 private _status;

    /**
     * @dev Unauthorized reentrant call.
     */
    error ReentrancyGuardReentrantCall();

    constructor() {
        _status = NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be NOT_ENTERED
        if (_status == ENTERED) {
            revert ReentrancyGuardReentrantCall();
        }

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

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

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == ENTERED;
    }
}

// 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 v5.4.0) (token/ERC20/IERC20.sol)

pragma solidity >=0.4.16;

/**
 * @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 v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

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

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

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

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

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

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

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

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

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

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

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(newOwner);
    }

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (interfaces/IERC1363.sol)

pragma solidity >=0.6.2;

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;

/**
 * @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 v5.4.0) (interfaces/IERC165.sol)

pragma solidity >=0.4.16;

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (interfaces/IERC20.sol)

pragma solidity >=0.4.16;

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (utils/introspection/IERC165.sol)

pragma solidity >=0.4.16;

/**
 * @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);
}