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

import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {Interface} from "src/contracts/interfaces/IFraxlendV3.sol"; // Using V3 interface based on previous context
import {ReentrancyGuard} from "@openzeppelin/contracts/security/ReentrancyGuard.sol";

contract RepayHelper is ReentrancyGuard {
    using SafeERC20 for IERC20;

    error InvalidRepayAmount();

    /// @notice Repays debt for msg.sender on a given Fraxlend pair.
    /// @param _pair The address of the Fraxlend pair contract.
    /// @param _amount The amount to repay, or type(uint256).max for full repay
    function repay(Interface _pair, uint256 _amount) external nonReentrant {
        address borrower = msg.sender;
        
        // Get borrower's shares and calculate amount to repay
        uint256 borrowerShares = _pair.userBorrowShares(borrower);
        if (borrowerShares == 0) return;

        uint256 sharesToRepay;
        uint256 amountToRepay;
        IERC20 assetToken = IERC20(_pair.asset());

        if (_amount == type(uint256).max) {
            sharesToRepay = borrowerShares;
            amountToRepay = _pair.toBorrowAmount(borrowerShares, true, true);
            assetToken.safeTransferFrom(borrower, address(this), amountToRepay);

        } else {
            if (_amount == 0) revert InvalidRepayAmount();
            sharesToRepay = _pair.toBorrowShares(_amount * 99950 / 100000, false, false);
            amountToRepay = _pair.toBorrowAmount(sharesToRepay, true, false);
            assetToken.safeTransferFrom(borrower, address(this), _amount);
        }

        // Handle asset token transfers
        
        if(assetToken.allowance(address(this), address(_pair)) < type(uint256).max) {
            assetToken.safeApprove(address(_pair), type(uint256).max);
        }

        // Repay and refund any dust
        _pair.repayAsset(sharesToRepay, borrower);
        
        uint256 remainingBalance = assetToken.balanceOf(address(this));
        if (remainingBalance > 0) {
            assetToken.safeTransfer(borrower, remainingBalance);
        }
    }

    /// @notice Calculates the amount needed to approve for repaying a borrower's debt, including a 2% buffer
    /// @param _pair The FraxlendPair contract
    /// @param borrower The address of the borrower
    /// @return amountToApprove The amount to approve, including buffer
    function getAmountToApprove(Interface _pair, address borrower) public view returns (uint256 amountToApprove) {
        // Get borrower's shares
        uint256 borrowerShares = _pair.userBorrowShares(borrower);
        
        // If no shares, return 0
        if (borrowerShares == 0) {
            return 0;
        }

        // Calculate base amount needed (round up)
        uint256 baseAmount = _pair.toBorrowAmount(borrowerShares, true, true);
        
        // Add 2% buffer
        amountToApprove = baseAmount + ((baseAmount * 2e18) / 100e18);
    }
}

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

pragma solidity ^0.8.0;

/**
 * @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 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;

    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
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // 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 v4.9.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

    /**
     * @dev Moves `amount` tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 amount) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

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

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

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

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

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(IERC20 token, address spender, uint256 value) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

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

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
        }
    }

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

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

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

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

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

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

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

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

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

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

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

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

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

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

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

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

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

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

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

library FraxlendPairCore {
    struct CurrentRateInfo {
        uint32 lastBlock;
        uint32 feeToProtocolRate;
        uint64 lastTimestamp;
        uint64 ratePerSec;
        uint64 fullUtilizationRate;
    }
}

interface Interface {
    struct VaultAccount {
        uint128 amount;
        uint128 shares;
    }

    error AccessControlRevoked();
    error BadProtocolFee();
    error BadSwapper();
    error BorrowerSolvent();
    error ExceedsBorrowLimit();
    error ExceedsDepositLimit();
    error ExceedsMaxOracleDeviation();
    error Insolvent(uint256 _borrow, uint256 _collateral, uint256 _exchangeRate);
    error InsufficientAssetsInContract(uint256 _assets, uint256 _request);
    error InterestPaused();
    error InvalidPath(address _expected, address _actual);
    error InvalidReceiver();
    error LiquidatePaused();
    error OnlyPendingTimelock();
    error OnlyProtocolOrOwner();
    error OnlyTimelock();
    error OnlyTimelockOrOwner();
    error PastDeadline(uint256 _blockTimestamp, uint256 _deadline);
    error RepayPaused();
    error SetterRevoked();
    error SlippageTooHigh(uint256 _minOut, uint256 _actual);
    error WithdrawPaused();

    event AddCollateral(address indexed sender, address indexed borrower, uint256 collateralAmount);
    event AddInterest(uint256 interestEarned, uint256 rate, uint256 feesAmount, uint256 feesShare);
    event Approval(address indexed owner, address indexed spender, uint256 value);
    event BorrowAsset(
        address indexed _borrower, address indexed _receiver, uint256 _borrowAmount, uint256 _sharesAdded
    );
    event ChangeFee(uint32 newFee);
    event Deposit(address indexed caller, address indexed owner, uint256 assets, uint256 shares);
    event LeveragedPosition(
        address indexed _borrower,
        address _swapperAddress,
        uint256 _borrowAmount,
        uint256 _borrowShares,
        uint256 _initialCollateralAmount,
        uint256 _amountCollateralOut
    );
    event Liquidate(
        address indexed _borrower,
        uint256 _collateralForLiquidator,
        uint256 _sharesToLiquidate,
        uint256 _amountLiquidatorToRepay,
        uint256 _feesAmount,
        uint256 _sharesToAdjust,
        uint256 _amountToAdjust
    );
    event OwnershipTransferStarted(address indexed previousOwner, address indexed newOwner);
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
    event PauseInterest(bool isPaused);
    event PauseLiquidate(bool isPaused);
    event PauseRepay(bool isPaused);
    event PauseWithdraw(bool isPaused);
    event RemoveCollateral(
        address indexed _sender, uint256 _collateralAmount, address indexed _receiver, address indexed _borrower
    );
    event RepayAsset(address indexed payer, address indexed borrower, uint256 amountToRepay, uint256 shares);
    event RepayAssetWithCollateral(
        address indexed _borrower,
        address _swapperAddress,
        uint256 _collateralToSwap,
        uint256 _amountAssetOut,
        uint256 _sharesRepaid
    );
    event RevokeBorrowAccessControl(uint256 borrowLimit);
    event RevokeDepositAccessControl(uint256 depositLimit);
    event RevokeInterestAccessControl();
    event RevokeLiquidateAccessControl();
    event RevokeLiquidationFeeSetter();
    event RevokeMaxLTVSetter();
    event RevokeOracleInfoSetter();
    event RevokeRateContractSetter();
    event RevokeRepayAccessControl();
    event RevokeWithdrawAccessControl();
    event SetBorrowLimit(uint256 limit);
    event SetCircuitBreaker(address oldCircuitBreaker, address newCircuitBreaker);
    event SetDepositLimit(uint256 limit);
    event SetLiquidationFees(
        uint256 oldCleanLiquidationFee,
        uint256 oldDirtyLiquidationFee,
        uint256 oldProtocolLiquidationFee,
        uint256 newCleanLiquidationFee,
        uint256 newDirtyLiquidationFee,
        uint256 newProtocolLiquidationFee
    );
    event SetMaxLTV(uint256 oldMaxLTV, uint256 newMaxLTV);
    event SetOracleInfo(
        address oldOracle, uint32 oldMaxOracleDeviation, address newOracle, uint32 newMaxOracleDeviation
    );
    event SetRateContract(address oldRateContract, address newRateContract);
    event SetSwapper(address swapper, bool approval);
    event TimelockTransferStarted(address indexed previousTimelock, address indexed newTimelock);
    event TimelockTransferred(address indexed previousTimelock, address indexed newTimelock);
    event Transfer(address indexed from, address indexed to, uint256 value);
    event UpdateExchangeRate(uint256 lowExchangeRate, uint256 highExchangeRate);
    event UpdateRate(
        uint256 oldRatePerSec, uint256 oldFullUtilizationRate, uint256 newRatePerSec, uint256 newFullUtilizationRate
    );
    event WarnOracleData(address oracle);
    event Withdraw(
        address indexed caller, address indexed receiver, address indexed owner, uint256 assets, uint256 shares
    );
    event WithdrawFees(uint128 shares, address recipient, uint256 amountToTransfer, uint256 collateralAmount);

    function DEPLOYER_ADDRESS() external view returns (address);
    function DEVIATION_PRECISION() external view returns (uint256);
    function EXCHANGE_PRECISION() external view returns (uint256);
    function FEE_PRECISION() external view returns (uint256);
    function LIQ_PRECISION() external view returns (uint256);
    function LTV_PRECISION() external view returns (uint256);
    function MAX_PROTOCOL_FEE() external view returns (uint256);
    function RATE_PRECISION() external view returns (uint256);
    function UTIL_PREC() external view returns (uint256);
    function acceptOwnership() external;
    function acceptTransferTimelock() external;
    function addCollateral(uint256 _collateralAmount, address _borrower) external;
    function addInterest(bool _returnAccounting)
        external
        returns (
            uint256 _interestEarned,
            uint256 _feesAmount,
            uint256 _feesShare,
            FraxlendPairCore.CurrentRateInfo memory _currentRateInfo,
            VaultAccount memory _totalAsset,
            VaultAccount memory _totalBorrow
        );
    function allowance(address owner, address spender) external view returns (uint256);
    function approve(address spender, uint256 amount) external returns (bool);
    function asset() external view returns (address);
    function balanceOf(address account) external view returns (uint256);
    function borrowAsset(uint256 _borrowAmount, uint256 _collateralAmount, address _receiver)
        external
        returns (uint256 _shares);
    function borrowLimit() external view returns (uint256);
    function changeFee(uint32 _newFee) external;
    function circuitBreakerAddress() external view returns (address);
    function cleanLiquidationFee() external view returns (uint256);
    function collateralContract() external view returns (address);
    function convertToAssets(uint256 _shares) external view returns (uint256 _assets);
    function convertToShares(uint256 _assets) external view returns (uint256 _shares);
    function currentRateInfo()
        external
        view
        returns (
            uint32 lastBlock,
            uint32 feeToProtocolRate,
            uint64 lastTimestamp,
            uint64 ratePerSec,
            uint64 fullUtilizationRate
        );
    function decimals() external view returns (uint8);
    function decreaseAllowance(address spender, uint256 subtractedValue) external returns (bool);
    function deposit(uint256 _amount, address _receiver) external returns (uint256 _sharesReceived);
    function depositLimit() external view returns (uint256);
    function dirtyLiquidationFee() external view returns (uint256);
    function exchangeRateInfo()
        external
        view
        returns (
            address oracle,
            uint32 maxOracleDeviation,
            uint184 lastTimestamp,
            uint256 lowExchangeRate,
            uint256 highExchangeRate
        );
    function getConstants()
        external
        pure
        returns (
            uint256 _LTV_PRECISION,
            uint256 _LIQ_PRECISION,
            uint256 _UTIL_PREC,
            uint256 _FEE_PRECISION,
            uint256 _EXCHANGE_PRECISION,
            uint256 _DEVIATION_PRECISION,
            uint256 _RATE_PRECISION,
            uint256 _MAX_PROTOCOL_FEE
        );
    function getPairAccounting()
        external
        view
        returns (
            uint128 _totalAssetAmount,
            uint128 _totalAssetShares,
            uint128 _totalBorrowAmount,
            uint128 _totalBorrowShares,
            uint256 _totalCollateral
        );
    function getUserSnapshot(address _address)
        external
        view
        returns (uint256 _userAssetShares, uint256 _userBorrowShares, uint256 _userCollateralBalance);
    function increaseAllowance(address spender, uint256 addedValue) external returns (bool);
    function isBorrowAccessControlRevoked() external view returns (bool);
    function isDepositAccessControlRevoked() external view returns (bool);
    function isInterestAccessControlRevoked() external view returns (bool);
    function isInterestPaused() external view returns (bool);
    function isLiquidateAccessControlRevoked() external view returns (bool);
    function isLiquidatePaused() external view returns (bool);
    function isLiquidationFeeSetterRevoked() external view returns (bool);
    function isMaxLTVSetterRevoked() external view returns (bool);
    function isOracleSetterRevoked() external view returns (bool);
    function isRateContractSetterRevoked() external view returns (bool);
    function isRepayAccessControlRevoked() external view returns (bool);
    function isRepayPaused() external view returns (bool);
    function isWithdrawAccessControlRevoked() external view returns (bool);
    function isWithdrawPaused() external view returns (bool);
    function leveragedPosition(
        address _swapperAddress,
        uint256 _borrowAmount,
        uint256 _initialCollateralAmount,
        uint256 _amountCollateralOutMin,
        address[] memory _path
    ) external returns (uint256 _totalCollateralBalance);
    function liquidate(uint128 _sharesToLiquidate, uint256 _deadline, address _borrower)
        external
        returns (uint256 _collateralForLiquidator);
    function maxDeposit(address _receiver) external view returns (uint256 _maxAssets);
    function maxLTV() external view returns (uint256);
    function maxMint(address _receiver) external view returns (uint256 _maxShares);
    function maxRedeem(address _owner) external view returns (uint256 _maxShares);
    function maxWithdraw(address _owner) external view returns (uint256 _maxAssets);
    function mint(uint256 _shares, address _receiver) external returns (uint256 _amount);
    function name() external view returns (string memory);
    function owner() external view returns (address);
    function pause() external;
    function pauseBorrow() external;
    function pauseDeposit() external;
    function pauseInterest(bool _isPaused) external;
    function pauseLiquidate(bool _isPaused) external;
    function pauseRepay(bool _isPaused) external;
    function pauseWithdraw(bool _isPaused) external;
    function pendingOwner() external view returns (address);
    function pendingTimelockAddress() external view returns (address);
    function previewAddInterest()
        external
        view
        returns (
            uint256 _interestEarned,
            uint256 _feesAmount,
            uint256 _feesShare,
            FraxlendPairCore.CurrentRateInfo memory _newCurrentRateInfo,
            VaultAccount memory _totalAsset,
            VaultAccount memory _totalBorrow
        );
    function previewDeposit(uint256 _assets) external view returns (uint256 _sharesReceived);
    function previewMint(uint256 _shares) external view returns (uint256 _amount);
    function previewRedeem(uint256 _shares) external view returns (uint256 _assets);
    function previewWithdraw(uint256 _amount) external view returns (uint256 _sharesToBurn);
    function pricePerShare() external view returns (uint256 _amount);
    function protocolLiquidationFee() external view returns (uint256);
    function rateContract() external view returns (address);
    function redeem(uint256 _shares, address _receiver, address _owner) external returns (uint256 _amountToReturn);
    function removeCollateral(uint256 _collateralAmount, address _receiver) external;
    function renounceOwnership() external;
    function renounceTimelock() external;
    function repayAsset(uint256 _shares, address _borrower) external returns (uint256 _amountToRepay);
    function repayAssetWithCollateral(
        address _swapperAddress,
        uint256 _collateralToSwap,
        uint256 _amountAssetOutMin,
        address[] memory _path
    ) external returns (uint256 _amountAssetOut);
    function revokeBorrowLimitAccessControl(uint256 _borrowLimit) external;
    function revokeDepositLimitAccessControl(uint256 _depositLimit) external;
    function revokeInterestAccessControl() external;
    function revokeLiquidateAccessControl() external;
    function revokeLiquidationFeeSetter() external;
    function revokeMaxLTVSetter() external;
    function revokeOracleInfoSetter() external;
    function revokeRateContractSetter() external;
    function revokeRepayAccessControl() external;
    function revokeWithdrawAccessControl() external;
    function setBorrowLimit(uint256 _limit) external;
    function setCircuitBreaker(address _newCircuitBreaker) external;
    function setDepositLimit(uint256 _limit) external;
    function setLiquidationFees(
        uint256 _newCleanLiquidationFee,
        uint256 _newDirtyLiquidationFee,
        uint256 _newProtocolLiquidationFee
    ) external;
    function setMaxLTV(uint256 _newMaxLTV) external;
    function setOracle(address _newOracle, uint32 _newMaxOracleDeviation) external;
    function setRateContract(address _newRateContract) external;
    function setSwapper(address _swapper, bool _approval) external;
    function swappers(address) external view returns (bool);
    function symbol() external view returns (string memory);
    function timelockAddress() external view returns (address);
    function toAssetAmount(uint256 _shares, bool _roundUp, bool _previewInterest)
        external
        view
        returns (uint256 _amount);
    function toAssetShares(uint256 _amount, bool _roundUp, bool _previewInterest)
        external
        view
        returns (uint256 _shares);
    function toBorrowAmount(uint256 _shares, bool _roundUp, bool _previewInterest)
        external
        view
        returns (uint256 _amount);
    function toBorrowShares(uint256 _amount, bool _roundUp, bool _previewInterest)
        external
        view
        returns (uint256 _shares);
    function totalAsset() external view returns (uint128 amount, uint128 shares);
    function totalAssets() external view returns (uint256);
    function totalBorrow() external view returns (uint128 amount, uint128 shares);
    function totalCollateral() external view returns (uint256);
    function totalSupply() external view returns (uint256);
    function transfer(address to, uint256 amount) external returns (bool);
    function transferFrom(address from, address to, uint256 amount) external returns (bool);
    function transferOwnership(address newOwner) external;
    function transferTimelock(address _newTimelock) external;
    function unpause() external;
    function updateExchangeRate()
        external
        returns (bool _isBorrowAllowed, uint256 _lowExchangeRate, uint256 _highExchangeRate);
    function userBorrowShares(address) external view returns (uint256);
    function userCollateralBalance(address) external view returns (uint256);
    function version() external pure returns (uint256 _major, uint256 _minor, uint256 _patch);
    function withdraw(uint256 _amount, address _receiver, address _owner) external returns (uint256 _sharesToBurn);
    function withdrawFees(uint128 _shares, address _recipient) external returns (uint256 _amountToTransfer);
}

{
  "evmVersion": "paris",
  "libraries": {},
  "metadata": {
    "appendCBOR": true,
    "bytecodeHash": "ipfs",
    "useLiteralContent": false
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "remappings": [
    "@chainlink/=node_modules/@chainlink/",
    "@ensdomains/=node_modules/@ensdomains/",
    "@eth-optimism/=node_modules/@eth-optimism/",
    "@mean-finance/=node_modules/@mean-finance/",
    "@openzeppelin/=node_modules/@openzeppelin/",
    "@rari-capital/=node_modules/@rari-capital/",
    "@uniswap/=node_modules/@uniswap/",
    "base64-sol/=node_modules/base64-sol/",
    "ds-test/=lib/ds-test/src/",
    "erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/",
    "eth-gas-reporter/=node_modules/eth-gas-reporter/",
    "forge-std/=lib/forge-std/src/",
    "halmos-cheatcodes/=lib/openzeppelin-contracts/lib/halmos-cheatcodes/src/",
    "hardhat/=node_modules/hardhat/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/",
    "solidity-bytes-utils/=node_modules/solidity-bytes-utils/",
    "gluex-router/=lib/gluex_router_contract/router_v1/",
    "@pythnetwork/=lib/pyth-adapters/node_modules/@pythnetwork/",
    "gluex_router_contract/=lib/gluex_router_contract/",
    "openzeppelin-contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/",
    "pyth-adapters/=lib/pyth-adapters/",
    "v3-core/=lib/v3-core/",
    "v3-periphery/=lib/v3-periphery/contracts/"
  ],
  "viaIR": true
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"name":"InvalidRepayAmount","type":"error"},{"inputs":[{"internalType":"contract Interface","name":"_pair","type":"address"},{"internalType":"address","name":"borrower","type":"address"}],"name":"getAmountToApprove","outputs":[{"internalType":"uint256","name":"amountToApprove","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract Interface","name":"_pair","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"repay","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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