{
  "language": "Solidity",
  "sources": {
    "contracts/adapters/PunkAdapter.sol": {
      "content": "// SPDX-License-Identifier: agpl-3.0\npragma solidity 0.8.9;\n\nimport {ICryptoPunksMarket} from \"../interfaces/ICryptoPunksMarket.sol\";\nimport {IWrappedPunks} from \"../interfaces/IWrappedPunks.sol\";\n\nimport {BaseAdapter} from \"./BaseAdapter.sol\";\n\ncontract PunkAdapter is BaseAdapter {\n    string public constant NAME = \"Punk Downpayment Adapter\";\n    string public constant VERSION = \"1.0\";\n    // keccak256(\"Params(uint256 punkIndex,uint256 buyPrice,uint256 nonce)\")\n    bytes32 private constant _PARAMS_TYPEHASH = 0x6b29cf124b3dc1aa17558842fd2132ad2ce1b133d72a92d497136ab79534ccad;\n\n    ICryptoPunksMarket public punksMarket;\n    IWrappedPunks public wrappedPunks;\n    address public wpunkProxy;\n\n    struct Params {\n        uint256 punkIndex;\n        uint256 buyPrice;\n    }\n\n    function initialize(\n        address _downpayment,\n        address _cryptoPunksMarket,\n        address _wrappedPunks\n    ) external initializer {\n        __BaseAdapter_init(NAME, VERSION, _downpayment);\n\n        punksMarket = ICryptoPunksMarket(_cryptoPunksMarket);\n        wrappedPunks = IWrappedPunks(_wrappedPunks);\n        wrappedPunks.registerProxy();\n        wpunkProxy = wrappedPunks.proxyInfo(address(this));\n    }\n\n    function initWETH() external reinitializer(2) {\n        __BaseAdapter_init(NAME, VERSION, address(downpayment));\n    }\n\n    function _checkParams(\n        address,\n        uint256,\n        uint256,\n        bytes memory _params,\n        uint256 _nonce\n    ) internal view override returns (BaseParams memory) {\n        Params memory _orderParams = _decodeParams(_params);\n\n        ICryptoPunksMarket.Offer memory _sellOffer = punksMarket.punksOfferedForSale(_orderParams.punkIndex);\n\n        // Check order params\n        require(_sellOffer.isForSale, \"Adapter: punk not actually for sale\");\n        require(_orderParams.buyPrice == _sellOffer.minValue, \"Adapter: order price must be same\");\n        require(_sellOffer.onlySellTo == address(0), \"Adapter: order must sell to zero address\");\n\n        return\n            BaseParams({\n                nftAsset: address(wrappedPunks),\n                nftTokenId: _orderParams.punkIndex,\n                currency: address(0),\n                salePrice: _sellOffer.minValue,\n                paramsHash: _hashParams(_orderParams, _nonce)\n            });\n    }\n\n    function _hashParams(Params memory _orderParams, uint256 _nonce) internal pure returns (bytes32) {\n        return keccak256(abi.encode(_PARAMS_TYPEHASH, _orderParams.punkIndex, _orderParams.buyPrice, _nonce));\n    }\n\n    function _exchange(BaseParams memory _baseParams, bytes memory _params) internal override {\n        Params memory _orderParams = _decodeParams(_params);\n        WETH.withdraw(_baseParams.salePrice);\n        punksMarket.buyPunk{value: _orderParams.buyPrice}(_orderParams.punkIndex);\n    }\n\n    function _beforeBorrowWETH(\n        address _nftAsset,\n        uint256 _nftTokenId,\n        address _onBehalfOf,\n        uint256 _amount\n    ) internal override {\n        _nftAsset;\n        _nftTokenId;\n        _onBehalfOf;\n        _amount;\n\n        require(address(wrappedPunks) == _nftAsset, \"Adapter: not wpunks\");\n        require(punksMarket.punkIndexToAddress(_nftTokenId) == address(this), \"Adapter: not owner of punkIndex\");\n        punksMarket.transferPunk(wpunkProxy, _nftTokenId);\n        wrappedPunks.mint(_nftTokenId);\n    }\n\n    function _decodeParams(bytes memory _params) internal pure returns (Params memory) {\n        return abi.decode(_params, (Params));\n    }\n}\n"
    },
    "contracts/interfaces/ICryptoPunksMarket.sol": {
      "content": "// SPDX-License-Identifier: agpl-3.0\npragma solidity 0.8.9;\n\ninterface ICryptoPunksMarket {\n    struct Offer {\n        bool isForSale;\n        uint256 punkIndex;\n        address seller;\n        uint256 minValue; // in ether\n        address onlySellTo; // specify to sell only to a specific person\n    }\n\n    function buyPunk(uint256 punkIndex) external payable;\n\n    function punksOfferedForSale(uint256 punkIndex) external view returns (Offer memory);\n\n    function punkIndexToAddress(uint256 punkIndex) external view returns (address);\n\n    function offerPunkForSaleToAddress(\n        uint256 punkIndex,\n        uint256 minSalePriceInWei,\n        address toAddress\n    ) external;\n\n    function transferPunk(address to, uint256 punkIndex) external;\n\n    function getPunk(uint256 punkIndex) external;\n\n    function offerPunkForSale(uint256 punkIndex, uint256 minSalePriceInWei) external;\n}\n"
    },
    "contracts/interfaces/IWrappedPunks.sol": {
      "content": "// SPDX-License-Identifier: agpl-3.0\npragma solidity 0.8.9;\n\nimport \"@openzeppelin/contracts/token/ERC721/IERC721.sol\";\n\n/**\n * @dev Interface for a permittable ERC721 contract\n * See https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].\n *\n * Adds the {permit} method, which can be used to change an account's ERC72 allowance (see {IERC721-allowance}) by\n * presenting a message signed by the account. By not relying on {IERC721-approve}, the token holder account doesn't\n * need to send a transaction, and thus is not required to hold Ether at all.\n */\ninterface IWrappedPunks is IERC721 {\n    function punkContract() external view returns (address);\n\n    function mint(uint256 punkIndex) external;\n\n    function burn(uint256 punkIndex) external;\n\n    function registerProxy() external;\n\n    function proxyInfo(address user) external view returns (address proxy);\n}\n"
    },
    "contracts/adapters/BaseAdapter.sol": {
      "content": "// SPDX-License-Identifier: agpl-3.0\npragma solidity 0.8.9;\n\nimport {EIP712Upgradeable} from \"@openzeppelin/contracts-upgradeable/utils/cryptography/draft-EIP712Upgradeable.sol\";\nimport {OwnableUpgradeable} from \"@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol\";\nimport {PausableUpgradeable} from \"@openzeppelin/contracts-upgradeable/security/PausableUpgradeable.sol\";\nimport {ReentrancyGuardUpgradeable} from \"@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol\";\nimport {IERC721Upgradeable} from \"@openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol\";\nimport {ERC721HolderUpgradeable} from \"@openzeppelin/contracts-upgradeable/token/ERC721/utils/ERC721HolderUpgradeable.sol\";\nimport {IERC20Upgradeable, SafeERC20Upgradeable} from \"@openzeppelin/contracts-upgradeable/token/ERC20/utils/SafeERC20Upgradeable.sol\";\nimport {SignatureCheckerUpgradeable} from \"@openzeppelin/contracts-upgradeable/utils/cryptography/SignatureCheckerUpgradeable.sol\";\n\nimport {IAaveFlashLoanReceiver} from \"../interfaces/IAaveFlashLoanReceiver.sol\";\nimport {ILendPool} from \"../interfaces/ILendPool.sol\";\nimport {PercentageMath} from \"../libraries/PercentageMath.sol\";\nimport {IWETH} from \"../interfaces/IWETH.sol\";\nimport {IDownpayment} from \"../interfaces/IDownpayment.sol\";\nimport {IENSReverseRegistrar} from \"../interfaces/IENSReverseRegistrar.sol\";\n\nabstract contract BaseAdapter is\n    IAaveFlashLoanReceiver,\n    OwnableUpgradeable,\n    PausableUpgradeable,\n    ReentrancyGuardUpgradeable,\n    EIP712Upgradeable,\n    ERC721HolderUpgradeable\n{\n    using SafeERC20Upgradeable for IERC20Upgradeable;\n    using PercentageMath for uint256;\n    event Purchased(\n        address indexed buyer,\n        address indexed nftToken,\n        uint256 nftTokenId,\n        address indexed currency,\n        uint256 borrowedAmount,\n        uint256 price,\n        uint256 flashLoanFee,\n        uint256 downpaymentFee,\n        bytes32 orderHash\n    );\n    IDownpayment public downpayment;\n    IWETH public WETH;\n    uint256[43] private __gap;\n\n    function __BaseAdapter_init(\n        string memory _name,\n        string memory _version,\n        address _downpayment\n    ) internal onlyInitializing {\n        __Ownable_init();\n        __Pausable_init();\n        __ReentrancyGuard_init();\n        __EIP712_init(_name, _version);\n        downpayment = IDownpayment(_downpayment);\n        WETH = downpayment.WETH();\n    }\n\n    struct BaseParams {\n        address nftAsset;\n        uint256 nftTokenId;\n        address currency;\n        uint256 salePrice;\n        bytes32 paramsHash;\n    }\n    struct LocalVars {\n        address buyer;\n        uint256 bendFeeAmount;\n        uint256 buyerPayment;\n        uint256 flashBorrowedAmount;\n        uint256 flashFee;\n        uint256 flashLoanDebt;\n        uint256 nonce;\n        bytes params;\n        uint8 v;\n        bytes32 r;\n        bytes32 s;\n    }\n\n    // external functions\n    function executeOperation(\n        address[] calldata _assets,\n        uint256[] calldata _amounts,\n        uint256[] calldata _premiums,\n        address _initiator,\n        bytes calldata _params\n    ) external override nonReentrant whenNotPaused returns (bool) {\n        require(msg.sender == address(downpayment.getAaveLendPool()), \"Adapter: caller must be aave lending pool\");\n        require(_initiator == address(downpayment), \"Adapter: flashloan initiator must be downpayment\");\n        uint256 fee = downpayment.getFee(address(this));\n        require(\n            _assets.length == 1 && _amounts.length == 1 && _premiums.length == 1,\n            \"Adapter: multiple assets not supported\"\n        );\n        require(_assets[0] == address(WETH), \"Adapter: only WETH borrowing allowed\");\n        LocalVars memory vars;\n        (vars.params, vars.buyer, vars.v, vars.r, vars.s) = abi.decode(\n            _params,\n            (bytes, address, uint8, bytes32, bytes32)\n        );\n\n        vars.flashBorrowedAmount = _amounts[0];\n        vars.flashFee = _premiums[0];\n        vars.nonce = downpayment.nonces(vars.buyer);\n\n        BaseParams memory baseParams = _checkParams(\n            vars.buyer,\n            vars.flashBorrowedAmount,\n            vars.flashFee,\n            vars.params,\n            vars.nonce\n        );\n        _checkSig(vars.buyer, baseParams.paramsHash, vars.v, vars.r, vars.s);\n\n        require(vars.flashBorrowedAmount <= WETH.balanceOf(address(this)), \"Adapter: insufficient flash loan\");\n\n        // Check if the flash loan can be paid off and payment sufficient\n        vars.bendFeeAmount = baseParams.salePrice.percentMul(fee);\n\n        vars.buyerPayment = vars.bendFeeAmount + vars.flashFee + baseParams.salePrice - vars.flashBorrowedAmount;\n        require(\n            WETH.balanceOf(vars.buyer) >= vars.buyerPayment &&\n                WETH.allowance(vars.buyer, address(this)) >= vars.buyerPayment,\n            \"Adapter: WETH Insufficient\"\n        );\n\n        vars.flashLoanDebt = vars.flashBorrowedAmount + vars.flashFee;\n\n        // Prepare ETH, need buyer approve WETH to this contract\n        if (vars.buyerPayment > 0) {\n            IERC20Upgradeable(address(WETH)).safeTransferFrom(vars.buyer, address(this), vars.buyerPayment);\n        }\n\n        // Do exchange\n        _exchange(baseParams, vars.params);\n\n        _beforeBorrowWETH(baseParams.nftAsset, baseParams.nftTokenId, vars.buyer, vars.flashBorrowedAmount);\n\n        // Borrow WETH from bend, need buyer approve NFT to this contract\n        _borrowWETH(baseParams.nftAsset, baseParams.nftTokenId, vars.buyer, vars.flashBorrowedAmount);\n\n        _afterBorrowWETH(baseParams.nftAsset, baseParams.nftTokenId, vars.buyer, vars.flashBorrowedAmount);\n\n        // Charge fee, sent to bend collector\n        _chargeFee(vars.bendFeeAmount);\n\n        // Repay flash loan\n        _repayFlashLoan(vars.flashLoanDebt);\n\n        emit Purchased(\n            vars.buyer,\n            baseParams.nftAsset,\n            baseParams.nftTokenId,\n            baseParams.currency,\n            vars.flashBorrowedAmount,\n            baseParams.salePrice,\n            vars.flashFee,\n            vars.bendFeeAmount,\n            baseParams.paramsHash\n        );\n        return true;\n    }\n\n    function pause() external onlyOwner whenNotPaused {\n        _pause();\n    }\n\n    function unpause() external onlyOwner whenPaused {\n        _unpause();\n    }\n\n    function setENSName(address registrar, string memory name) external onlyOwner returns (bytes32) {\n        return IENSReverseRegistrar(registrar).setName(name);\n    }\n\n    // abstract functions\n    function _checkParams(\n        address _buyer,\n        uint256 _flashBorrowedAmount,\n        uint256 _flashFee,\n        bytes memory _params,\n        uint256 _nonce\n    ) internal view virtual returns (BaseParams memory);\n\n    function _exchange(BaseParams memory baseParams, bytes memory _params) internal virtual;\n\n    // internal functions\n    function _chargeFee(uint256 _amount) internal {\n        if (_amount > 0) {\n            WETH.approve(address(downpayment.getBendLendPool()), _amount);\n            downpayment.getBendLendPool().deposit(address(WETH), _amount, downpayment.getFeeCollector(), 0);\n            WETH.approve(address(downpayment.getBendLendPool()), 0);\n        }\n    }\n\n    function _beforeBorrowWETH(\n        address _nftAsset,\n        uint256 _nftTokenId,\n        address _onBehalfOf,\n        uint256 _amount\n    ) internal virtual {}\n\n    function _borrowWETH(\n        address _nftAsset,\n        uint256 _nftTokenId,\n        address _onBehalfOf,\n        uint256 _amount\n    ) internal {\n        ILendPool _pool = downpayment.getBendLendPool();\n        address _reserveToken = address(WETH);\n        IERC721Upgradeable _nftERC721 = IERC721Upgradeable(_nftAsset);\n        require(_nftERC721.ownerOf(_nftTokenId) == address(this), \"Adapter: not own nft\");\n        _nftERC721.approve(address(_pool), _nftTokenId);\n        _pool.borrow(_reserveToken, _amount, _nftAsset, _nftTokenId, _onBehalfOf, 0);\n    }\n\n    function _afterBorrowWETH(\n        address _nftAsset,\n        uint256 _nftTokenId,\n        address _onBehalfOf,\n        uint256 _amount\n    ) internal virtual {}\n\n    function _repayFlashLoan(uint256 _flashLoanDebt) internal {\n        address aaveLendPool = address(downpayment.getAaveLendPool());\n        WETH.approve(aaveLendPool, 0);\n        WETH.approve(aaveLendPool, _flashLoanDebt);\n    }\n\n    function _checkSig(\n        address _signer,\n        bytes32 paramsHash,\n        uint8 v,\n        bytes32 r,\n        bytes32 s\n    ) internal view {\n        require(\n            SignatureCheckerUpgradeable.isValidSignatureNow(\n                _signer,\n                _hashTypedDataV4(paramsHash),\n                abi.encodePacked(r, s, v)\n            ),\n            \"Adapter: invalid signature\"\n        );\n    }\n\n    /**\n     * @dev Only WETH contract is allowed to transfer ETH here. Prevent other addresses to send Ether to this contract.\n     */\n    receive() external payable {\n        require(msg.sender == address(WETH), \"Adapter: receive not allowed\");\n    }\n}\n"
    },
    "@openzeppelin/contracts/token/ERC721/IERC721.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ninterface IERC721 is IERC165 {\n    /**\n     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n    /**\n     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n     */\n    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n    /**\n     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\n     */\n    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n    /**\n     * @dev Returns the number of tokens in ``owner``'s account.\n     */\n    function balanceOf(address owner) external view returns (uint256 balance);\n\n    /**\n     * @dev Returns the owner of the `tokenId` token.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     */\n    function ownerOf(uint256 tokenId) external view returns (address owner);\n\n    /**\n     * @dev Safely transfers `tokenId` token from `from` to `to`.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must exist and be owned by `from`.\n     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId,\n        bytes calldata data\n    ) external;\n\n    /**\n     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n     * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must exist and be owned by `from`.\n     * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    ) external;\n\n    /**\n     * @dev Transfers `tokenId` token from `from` to `to`.\n     *\n     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must be owned by `from`.\n     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    ) external;\n\n    /**\n     * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n     * The approval is cleared when the token is transferred.\n     *\n     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\n     *\n     * Requirements:\n     *\n     * - The caller must own the token or be an approved operator.\n     * - `tokenId` must exist.\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address to, uint256 tokenId) external;\n\n    /**\n     * @dev Approve or remove `operator` as an operator for the caller.\n     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\n     *\n     * Requirements:\n     *\n     * - The `operator` cannot be the caller.\n     *\n     * Emits an {ApprovalForAll} event.\n     */\n    function setApprovalForAll(address operator, bool _approved) external;\n\n    /**\n     * @dev Returns the account approved for `tokenId` token.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     */\n    function getApproved(uint256 tokenId) external view returns (address operator);\n\n    /**\n     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n     *\n     * See {setApprovalForAll}\n     */\n    function isApprovedForAll(address owner, address operator) external view returns (bool);\n}\n"
    },
    "@openzeppelin/contracts/utils/introspection/IERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n    /**\n     * @dev Returns true if this contract implements the interface defined by\n     * `interfaceId`. See the corresponding\n     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n     * to learn more about how these ids are created.\n     *\n     * This function call must use less than 30 000 gas.\n     */\n    function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n"
    },
    "@openzeppelin/contracts-upgradeable/utils/cryptography/draft-EIP712Upgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/cryptography/draft-EIP712.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./ECDSAUpgradeable.sol\";\nimport \"../../proxy/utils/Initializable.sol\";\n\n/**\n * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.\n *\n * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,\n * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding\n * they need in their contracts using a combination of `abi.encode` and `keccak256`.\n *\n * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding\n * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA\n * ({_hashTypedDataV4}).\n *\n * The implementation of the domain separator was designed to be as efficient as possible while still properly updating\n * the chain id to protect against replay attacks on an eventual fork of the chain.\n *\n * NOTE: This contract implements the version of the encoding known as \"v4\", as implemented by the JSON RPC method\n * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].\n *\n * _Available since v3.4._\n *\n * @custom:storage-size 52\n */\nabstract contract EIP712Upgradeable is Initializable {\n    /* solhint-disable var-name-mixedcase */\n    bytes32 private _HASHED_NAME;\n    bytes32 private _HASHED_VERSION;\n    bytes32 private constant _TYPE_HASH = keccak256(\"EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)\");\n\n    /* solhint-enable var-name-mixedcase */\n\n    /**\n     * @dev Initializes the domain separator and parameter caches.\n     *\n     * The meaning of `name` and `version` is specified in\n     * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:\n     *\n     * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.\n     * - `version`: the current major version of the signing domain.\n     *\n     * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart\n     * contract upgrade].\n     */\n    function __EIP712_init(string memory name, string memory version) internal onlyInitializing {\n        __EIP712_init_unchained(name, version);\n    }\n\n    function __EIP712_init_unchained(string memory name, string memory version) internal onlyInitializing {\n        bytes32 hashedName = keccak256(bytes(name));\n        bytes32 hashedVersion = keccak256(bytes(version));\n        _HASHED_NAME = hashedName;\n        _HASHED_VERSION = hashedVersion;\n    }\n\n    /**\n     * @dev Returns the domain separator for the current chain.\n     */\n    function _domainSeparatorV4() internal view returns (bytes32) {\n        return _buildDomainSeparator(_TYPE_HASH, _EIP712NameHash(), _EIP712VersionHash());\n    }\n\n    function _buildDomainSeparator(\n        bytes32 typeHash,\n        bytes32 nameHash,\n        bytes32 versionHash\n    ) private view returns (bytes32) {\n        return keccak256(abi.encode(typeHash, nameHash, versionHash, block.chainid, address(this)));\n    }\n\n    /**\n     * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this\n     * function returns the hash of the fully encoded EIP712 message for this domain.\n     *\n     * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:\n     *\n     * ```solidity\n     * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(\n     *     keccak256(\"Mail(address to,string contents)\"),\n     *     mailTo,\n     *     keccak256(bytes(mailContents))\n     * )));\n     * address signer = ECDSA.recover(digest, signature);\n     * ```\n     */\n    function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {\n        return ECDSAUpgradeable.toTypedDataHash(_domainSeparatorV4(), structHash);\n    }\n\n    /**\n     * @dev The hash of the name parameter for the EIP712 domain.\n     *\n     * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs\n     * are a concern.\n     */\n    function _EIP712NameHash() internal virtual view returns (bytes32) {\n        return _HASHED_NAME;\n    }\n\n    /**\n     * @dev The hash of the version parameter for the EIP712 domain.\n     *\n     * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs\n     * are a concern.\n     */\n    function _EIP712VersionHash() internal virtual view returns (bytes32) {\n        return _HASHED_VERSION;\n    }\n\n    /**\n     * @dev This empty reserved space is put in place to allow future versions to add new\n     * variables without shifting down storage in the inheritance chain.\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n     */\n    uint256[50] private __gap;\n}\n"
    },
    "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/ContextUpgradeable.sol\";\nimport \"../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Contract module which provides a basic access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * By default, the owner account will be the one that deploys the contract. This\n * can later be changed with {transferOwnership}.\n *\n * This module is used through inheritance. It will make available the modifier\n * `onlyOwner`, which can be applied to your functions to restrict their use to\n * the owner.\n */\nabstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {\n    address private _owner;\n\n    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n    /**\n     * @dev Initializes the contract setting the deployer as the initial owner.\n     */\n    function __Ownable_init() internal onlyInitializing {\n        __Ownable_init_unchained();\n    }\n\n    function __Ownable_init_unchained() internal onlyInitializing {\n        _transferOwnership(_msgSender());\n    }\n\n    /**\n     * @dev Returns the address of the current owner.\n     */\n    function owner() public view virtual returns (address) {\n        return _owner;\n    }\n\n    /**\n     * @dev Throws if called by any account other than the owner.\n     */\n    modifier onlyOwner() {\n        require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n        _;\n    }\n\n    /**\n     * @dev Leaves the contract without owner. It will not be possible to call\n     * `onlyOwner` functions anymore. Can only be called by the current owner.\n     *\n     * NOTE: Renouncing ownership will leave the contract without an owner,\n     * thereby removing any functionality that is only available to the owner.\n     */\n    function renounceOwnership() public virtual onlyOwner {\n        _transferOwnership(address(0));\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\n     * Can only be called by the current owner.\n     */\n    function transferOwnership(address newOwner) public virtual onlyOwner {\n        require(newOwner != address(0), \"Ownable: new owner is the zero address\");\n        _transferOwnership(newOwner);\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\n     * Internal function without access restriction.\n     */\n    function _transferOwnership(address newOwner) internal virtual {\n        address oldOwner = _owner;\n        _owner = newOwner;\n        emit OwnershipTransferred(oldOwner, newOwner);\n    }\n\n    /**\n     * @dev This empty reserved space is put in place to allow future versions to add new\n     * variables without shifting down storage in the inheritance chain.\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n     */\n    uint256[49] private __gap;\n}\n"
    },
    "@openzeppelin/contracts-upgradeable/security/PausableUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (security/Pausable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/ContextUpgradeable.sol\";\nimport \"../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Contract module which allows children to implement an emergency stop\n * mechanism that can be triggered by an authorized account.\n *\n * This module is used through inheritance. It will make available the\n * modifiers `whenNotPaused` and `whenPaused`, which can be applied to\n * the functions of your contract. Note that they will not be pausable by\n * simply including this module, only once the modifiers are put in place.\n */\nabstract contract PausableUpgradeable is Initializable, ContextUpgradeable {\n    /**\n     * @dev Emitted when the pause is triggered by `account`.\n     */\n    event Paused(address account);\n\n    /**\n     * @dev Emitted when the pause is lifted by `account`.\n     */\n    event Unpaused(address account);\n\n    bool private _paused;\n\n    /**\n     * @dev Initializes the contract in unpaused state.\n     */\n    function __Pausable_init() internal onlyInitializing {\n        __Pausable_init_unchained();\n    }\n\n    function __Pausable_init_unchained() internal onlyInitializing {\n        _paused = false;\n    }\n\n    /**\n     * @dev Returns true if the contract is paused, and false otherwise.\n     */\n    function paused() public view virtual returns (bool) {\n        return _paused;\n    }\n\n    /**\n     * @dev Modifier to make a function callable only when the contract is not paused.\n     *\n     * Requirements:\n     *\n     * - The contract must not be paused.\n     */\n    modifier whenNotPaused() {\n        require(!paused(), \"Pausable: paused\");\n        _;\n    }\n\n    /**\n     * @dev Modifier to make a function callable only when the contract is paused.\n     *\n     * Requirements:\n     *\n     * - The contract must be paused.\n     */\n    modifier whenPaused() {\n        require(paused(), \"Pausable: not paused\");\n        _;\n    }\n\n    /**\n     * @dev Triggers stopped state.\n     *\n     * Requirements:\n     *\n     * - The contract must not be paused.\n     */\n    function _pause() internal virtual whenNotPaused {\n        _paused = true;\n        emit Paused(_msgSender());\n    }\n\n    /**\n     * @dev Returns to normal state.\n     *\n     * Requirements:\n     *\n     * - The contract must be paused.\n     */\n    function _unpause() internal virtual whenPaused {\n        _paused = false;\n        emit Unpaused(_msgSender());\n    }\n\n    /**\n     * @dev This empty reserved space is put in place to allow future versions to add new\n     * variables without shifting down storage in the inheritance chain.\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n     */\n    uint256[49] private __gap;\n}\n"
    },
    "@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)\n\npragma solidity ^0.8.0;\nimport \"../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Contract module that helps prevent reentrant calls to a function.\n *\n * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier\n * available, which can be applied to functions to make sure there are no nested\n * (reentrant) calls to them.\n *\n * Note that because there is a single `nonReentrant` guard, functions marked as\n * `nonReentrant` may not call one another. This can be worked around by making\n * those functions `private`, and then adding `external` `nonReentrant` entry\n * points to them.\n *\n * TIP: If you would like to learn more about reentrancy and alternative ways\n * to protect against it, check out our blog post\n * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].\n */\nabstract contract ReentrancyGuardUpgradeable is Initializable {\n    // Booleans are more expensive than uint256 or any type that takes up a full\n    // word because each write operation emits an extra SLOAD to first read the\n    // slot's contents, replace the bits taken up by the boolean, and then write\n    // back. This is the compiler's defense against contract upgrades and\n    // pointer aliasing, and it cannot be disabled.\n\n    // The values being non-zero value makes deployment a bit more expensive,\n    // but in exchange the refund on every call to nonReentrant will be lower in\n    // amount. Since refunds are capped to a percentage of the total\n    // transaction's gas, it is best to keep them low in cases like this one, to\n    // increase the likelihood of the full refund coming into effect.\n    uint256 private constant _NOT_ENTERED = 1;\n    uint256 private constant _ENTERED = 2;\n\n    uint256 private _status;\n\n    function __ReentrancyGuard_init() internal onlyInitializing {\n        __ReentrancyGuard_init_unchained();\n    }\n\n    function __ReentrancyGuard_init_unchained() internal onlyInitializing {\n        _status = _NOT_ENTERED;\n    }\n\n    /**\n     * @dev Prevents a contract from calling itself, directly or indirectly.\n     * Calling a `nonReentrant` function from another `nonReentrant`\n     * function is not supported. It is possible to prevent this from happening\n     * by making the `nonReentrant` function external, and making it call a\n     * `private` function that does the actual work.\n     */\n    modifier nonReentrant() {\n        // On the first call to nonReentrant, _notEntered will be true\n        require(_status != _ENTERED, \"ReentrancyGuard: reentrant call\");\n\n        // Any calls to nonReentrant after this point will fail\n        _status = _ENTERED;\n\n        _;\n\n        // By storing the original value once again, a refund is triggered (see\n        // https://eips.ethereum.org/EIPS/eip-2200)\n        _status = _NOT_ENTERED;\n    }\n\n    /**\n     * @dev This empty reserved space is put in place to allow future versions to add new\n     * variables without shifting down storage in the inheritance chain.\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n     */\n    uint256[49] private __gap;\n}\n"
    },
    "@openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165Upgradeable.sol\";\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ninterface IERC721Upgradeable is IERC165Upgradeable {\n    /**\n     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n    /**\n     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n     */\n    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n    /**\n     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\n     */\n    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n    /**\n     * @dev Returns the number of tokens in ``owner``'s account.\n     */\n    function balanceOf(address owner) external view returns (uint256 balance);\n\n    /**\n     * @dev Returns the owner of the `tokenId` token.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     */\n    function ownerOf(uint256 tokenId) external view returns (address owner);\n\n    /**\n     * @dev Safely transfers `tokenId` token from `from` to `to`.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must exist and be owned by `from`.\n     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId,\n        bytes calldata data\n    ) external;\n\n    /**\n     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n     * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must exist and be owned by `from`.\n     * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    ) external;\n\n    /**\n     * @dev Transfers `tokenId` token from `from` to `to`.\n     *\n     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must be owned by `from`.\n     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    ) external;\n\n    /**\n     * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n     * The approval is cleared when the token is transferred.\n     *\n     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\n     *\n     * Requirements:\n     *\n     * - The caller must own the token or be an approved operator.\n     * - `tokenId` must exist.\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address to, uint256 tokenId) external;\n\n    /**\n     * @dev Approve or remove `operator` as an operator for the caller.\n     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\n     *\n     * Requirements:\n     *\n     * - The `operator` cannot be the caller.\n     *\n     * Emits an {ApprovalForAll} event.\n     */\n    function setApprovalForAll(address operator, bool _approved) external;\n\n    /**\n     * @dev Returns the account approved for `tokenId` token.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     */\n    function getApproved(uint256 tokenId) external view returns (address operator);\n\n    /**\n     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n     *\n     * See {setApprovalForAll}\n     */\n    function isApprovedForAll(address owner, address operator) external view returns (bool);\n}\n"
    },
    "@openzeppelin/contracts-upgradeable/token/ERC721/utils/ERC721HolderUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/utils/ERC721Holder.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC721ReceiverUpgradeable.sol\";\nimport \"../../../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Implementation of the {IERC721Receiver} interface.\n *\n * Accepts all token transfers.\n * Make sure the contract is able to use its token with {IERC721-safeTransferFrom}, {IERC721-approve} or {IERC721-setApprovalForAll}.\n */\ncontract ERC721HolderUpgradeable is Initializable, IERC721ReceiverUpgradeable {\n    function __ERC721Holder_init() internal onlyInitializing {\n    }\n\n    function __ERC721Holder_init_unchained() internal onlyInitializing {\n    }\n    /**\n     * @dev See {IERC721Receiver-onERC721Received}.\n     *\n     * Always returns `IERC721Receiver.onERC721Received.selector`.\n     */\n    function onERC721Received(\n        address,\n        address,\n        uint256,\n        bytes memory\n    ) public virtual override returns (bytes4) {\n        return this.onERC721Received.selector;\n    }\n\n    /**\n     * @dev This empty reserved space is put in place to allow future versions to add new\n     * variables without shifting down storage in the inheritance chain.\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n     */\n    uint256[50] private __gap;\n}\n"
    },
    "@openzeppelin/contracts-upgradeable/token/ERC20/utils/SafeERC20Upgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20Upgradeable.sol\";\nimport \"../../../utils/AddressUpgradeable.sol\";\n\n/**\n * @title SafeERC20\n * @dev Wrappers around ERC20 operations that throw on failure (when the token\n * contract returns false). Tokens that return no value (and instead revert or\n * throw on failure) are also supported, non-reverting calls are assumed to be\n * successful.\n * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,\n * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.\n */\nlibrary SafeERC20Upgradeable {\n    using AddressUpgradeable for address;\n\n    function safeTransfer(\n        IERC20Upgradeable token,\n        address to,\n        uint256 value\n    ) internal {\n        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));\n    }\n\n    function safeTransferFrom(\n        IERC20Upgradeable token,\n        address from,\n        address to,\n        uint256 value\n    ) internal {\n        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));\n    }\n\n    /**\n     * @dev Deprecated. This function has issues similar to the ones found in\n     * {IERC20-approve}, and its usage is discouraged.\n     *\n     * Whenever possible, use {safeIncreaseAllowance} and\n     * {safeDecreaseAllowance} instead.\n     */\n    function safeApprove(\n        IERC20Upgradeable token,\n        address spender,\n        uint256 value\n    ) internal {\n        // safeApprove should only be called when setting an initial allowance,\n        // or when resetting it to zero. To increase and decrease it, use\n        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'\n        require(\n            (value == 0) || (token.allowance(address(this), spender) == 0),\n            \"SafeERC20: approve from non-zero to non-zero allowance\"\n        );\n        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));\n    }\n\n    function safeIncreaseAllowance(\n        IERC20Upgradeable token,\n        address spender,\n        uint256 value\n    ) internal {\n        uint256 newAllowance = token.allowance(address(this), spender) + value;\n        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n    }\n\n    function safeDecreaseAllowance(\n        IERC20Upgradeable token,\n        address spender,\n        uint256 value\n    ) internal {\n        unchecked {\n            uint256 oldAllowance = token.allowance(address(this), spender);\n            require(oldAllowance >= value, \"SafeERC20: decreased allowance below zero\");\n            uint256 newAllowance = oldAllowance - value;\n            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n        }\n    }\n\n    /**\n     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\n     * on the return value: the return value is optional (but if data is returned, it must not be false).\n     * @param token The token targeted by the call.\n     * @param data The call data (encoded using abi.encode or one of its variants).\n     */\n    function _callOptionalReturn(IERC20Upgradeable token, bytes memory data) private {\n        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\n        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that\n        // the target address contains contract code and also asserts for success in the low-level call.\n\n        bytes memory returndata = address(token).functionCall(data, \"SafeERC20: low-level call failed\");\n        if (returndata.length > 0) {\n            // Return data is optional\n            require(abi.decode(returndata, (bool)), \"SafeERC20: ERC20 operation did not succeed\");\n        }\n    }\n}\n"
    },
    "@openzeppelin/contracts-upgradeable/utils/cryptography/SignatureCheckerUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.5.0) (utils/cryptography/SignatureChecker.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./ECDSAUpgradeable.sol\";\nimport \"../AddressUpgradeable.sol\";\nimport \"../../interfaces/IERC1271Upgradeable.sol\";\n\n/**\n * @dev Signature verification helper that can be used instead of `ECDSA.recover` to seamlessly support both ECDSA\n * signatures from externally owned accounts (EOAs) as well as ERC1271 signatures from smart contract wallets like\n * Argent and Gnosis Safe.\n *\n * _Available since v4.1._\n */\nlibrary SignatureCheckerUpgradeable {\n    /**\n     * @dev Checks if a signature is valid for a given signer and data hash. If the signer is a smart contract, the\n     * signature is validated against that smart contract using ERC1271, otherwise it's validated using `ECDSA.recover`.\n     *\n     * NOTE: Unlike ECDSA signatures, contract signatures are revocable, and the outcome of this function can thus\n     * change through time. It could return true at block N and false at block N+1 (or the opposite).\n     */\n    function isValidSignatureNow(\n        address signer,\n        bytes32 hash,\n        bytes memory signature\n    ) internal view returns (bool) {\n        (address recovered, ECDSAUpgradeable.RecoverError error) = ECDSAUpgradeable.tryRecover(hash, signature);\n        if (error == ECDSAUpgradeable.RecoverError.NoError && recovered == signer) {\n            return true;\n        }\n\n        (bool success, bytes memory result) = signer.staticcall(\n            abi.encodeWithSelector(IERC1271Upgradeable.isValidSignature.selector, hash, signature)\n        );\n        return (success && result.length == 32 && abi.decode(result, (bytes4)) == IERC1271Upgradeable.isValidSignature.selector);\n    }\n}\n"
    },
    "contracts/interfaces/IAaveFlashLoanReceiver.sol": {
      "content": "// SPDX-License-Identifier: agpl-3.0\npragma solidity 0.8.9;\n\n/**\n * @title IAaveFlashLoanReceiver interface\n * @notice Interface for the Aave fee IFlashLoanReceiver.\n * @author Bend\n * @dev implement this interface to develop a flashloan-compatible flashLoanReceiver contract\n **/\ninterface IAaveFlashLoanReceiver {\n    function executeOperation(\n        address[] calldata assets,\n        uint256[] calldata amounts,\n        uint256[] calldata premiums,\n        address initiator,\n        bytes calldata params\n    ) external returns (bool);\n}\n"
    },
    "contracts/interfaces/ILendPool.sol": {
      "content": "// SPDX-License-Identifier: agpl-3.0\npragma solidity 0.8.9;\n\nimport {ILendPoolAddressesProvider} from \"./ILendPoolAddressesProvider.sol\";\n\ninterface ILendPool {\n    /**\n     * @dev Deposits an `amount` of underlying asset into the reserve, receiving in return overlying bTokens.\n     * - E.g. User deposits 100 USDC and gets in return 100 bUSDC\n     * @param reserve The address of the underlying asset to deposit\n     * @param amount The amount to be deposited\n     * @param onBehalfOf The address that will receive the bTokens, same as msg.sender if the user\n     *   wants to receive them on his own wallet, or a different address if the beneficiary of bTokens\n     *   is a different wallet\n     * @param referralCode Code used to register the integrator originating the operation, for potential rewards.\n     *   0 if the action is executed directly by the user, without any middle-man\n     **/\n    function deposit(\n        address reserve,\n        uint256 amount,\n        address onBehalfOf,\n        uint16 referralCode\n    ) external;\n\n    /**\n     * @dev Allows users to borrow a specific `amount` of the reserve underlying asset, provided that the borrower\n     * already deposited enough collateral\n     * - E.g. User borrows 100 USDC, receiving the 100 USDC in his wallet\n     *   and lock collateral asset in contract\n     * @param reserveAsset The address of the underlying asset to borrow\n     * @param amount The amount to be borrowed\n     * @param nftAsset The address of the underlying NFT used as collateral\n     * @param nftTokenId The token ID of the underlying NFT used as collateral\n     * @param onBehalfOf Address of the user who will receive the loan. Should be the address of the borrower itself\n     * calling the function if he wants to borrow against his own collateral, or the address of the credit delegator\n     * if he has been given credit delegation allowance\n     * @param referralCode Code used to register the integrator originating the operation, for potential rewards.\n     *   0 if the action is executed directly by the user, without any middle-man\n     **/\n    function borrow(\n        address reserveAsset,\n        uint256 amount,\n        address nftAsset,\n        uint256 nftTokenId,\n        address onBehalfOf,\n        uint16 referralCode\n    ) external;\n\n    /**\n     * @notice Repays a borrowed `amount` on a specific reserve, burning the equivalent loan owned\n     * - E.g. User repays 100 USDC, burning loan and receives collateral asset\n     * @param nftAsset The address of the underlying NFT used as collateral\n     * @param nftTokenId The token ID of the underlying NFT used as collateral\n     * @param amount The amount to repay\n     * @return The final amount repaid, loan is burned or not\n     **/\n    function repay(\n        address nftAsset,\n        uint256 nftTokenId,\n        uint256 amount\n    ) external returns (uint256, bool);\n\n    /**\n     * @dev Returns the loan data of the NFT\n     * @param nftAsset The address of the NFT\n     * @param reserveAsset The address of the Reserve\n     * @return totalCollateralInETH the total collateral in ETH of the NFT\n     * @return totalCollateralInReserve the total collateral in Reserve of the NFT\n     * @return availableBorrowsInETH the borrowing power in ETH of the NFT\n     * @return availableBorrowsInReserve the borrowing power in Reserve of the NFT\n     * @return ltv the loan to value of the user\n     * @return liquidationThreshold the liquidation threshold of the NFT\n     * @return liquidationBonus the liquidation bonus of the NFT\n     **/\n    function getNftCollateralData(address nftAsset, address reserveAsset)\n        external\n        view\n        returns (\n            uint256 totalCollateralInETH,\n            uint256 totalCollateralInReserve,\n            uint256 availableBorrowsInETH,\n            uint256 availableBorrowsInReserve,\n            uint256 ltv,\n            uint256 liquidationThreshold,\n            uint256 liquidationBonus\n        );\n}\n"
    },
    "contracts/libraries/PercentageMath.sol": {
      "content": "// SPDX-License-Identifier: agpl-3.0\npragma solidity 0.8.9;\n\n/**\n * @title PercentageMath library\n * @author Bend\n * @notice Provides functions to perform percentage calculations\n * @dev Percentages are defined by default with 2 decimals of precision (100.00). The precision is indicated by PERCENTAGE_FACTOR\n * @dev Operations are rounded half up\n **/\n\nlibrary PercentageMath {\n    uint256 public constant PERCENTAGE_FACTOR = 1e4; //percentage plus two decimals\n    uint256 public constant HALF_PERCENT = PERCENTAGE_FACTOR / 2;\n    uint256 public constant ONE_PERCENT = 1e2; //100, 1%\n    uint256 public constant TEN_PERCENT = 1e3; //1000, 10%\n    uint256 public constant ONE_THOUSANDTH_PERCENT = 1e1; //10, 0.1%\n    uint256 public constant ONE_TEN_THOUSANDTH_PERCENT = 1; //1, 0.01%\n\n    /**\n     * @dev Executes a percentage multiplication\n     * @param value The value of which the percentage needs to be calculated\n     * @param percentage The percentage of the value to be calculated\n     * @return The percentage of value\n     **/\n    function percentMul(uint256 value, uint256 percentage) internal pure returns (uint256) {\n        if (value == 0 || percentage == 0) {\n            return 0;\n        }\n\n        require(value <= (type(uint256).max - HALF_PERCENT) / percentage, \"MATH_MULTIPLICATION_OVERFLOW\");\n\n        return (value * percentage + HALF_PERCENT) / PERCENTAGE_FACTOR;\n    }\n}\n"
    },
    "contracts/interfaces/IWETH.sol": {
      "content": "// SPDX-License-Identifier: agpl-3.0\npragma solidity 0.8.9;\n\ninterface IWETH {\n    function deposit() external payable;\n\n    function withdraw(uint256) external;\n\n    function allowance(address, address) external view returns (uint256);\n\n    function approve(address guy, uint256 wad) external returns (bool);\n\n    function transferFrom(\n        address src,\n        address dst,\n        uint256 wad\n    ) external returns (bool);\n\n    function transfer(address dst, uint256 wad) external returns (bool);\n\n    function balanceOf(address) external view returns (uint256);\n}\n"
    },
    "contracts/interfaces/IDownpayment.sol": {
      "content": "// SPDX-License-Identifier: agpl-3.0\npragma solidity 0.8.9;\n\nimport {IWETH} from \"./IWETH.sol\";\nimport {ILendPool} from \"./ILendPool.sol\";\nimport {IAaveLendPool} from \"./IAaveLendPool.sol\";\n\ninterface IDownpayment {\n    struct Sig {\n        uint8 v;\n        bytes32 r;\n        bytes32 s;\n    }\n\n    function WETH() external view returns (IWETH);\n\n    function getFee(address adapter) external view returns (uint256);\n\n    function getFeeCollector() external view returns (address);\n\n    function getBendLendPool() external view returns (ILendPool);\n\n    function getAaveLendPool() external view returns (IAaveLendPool);\n\n    function nonces(address owner) external view returns (uint256);\n\n    function isAdapterWhitelisted(address adapter) external view returns (bool);\n\n    function viewCountWhitelistedAdapters() external view returns (uint256);\n\n    function viewWhitelistedAdapters(uint256 cursor, uint256 size) external view returns (address[] memory, uint256);\n\n    function buy(\n        address adapter,\n        uint256 borrowAmount,\n        bytes calldata data,\n        Sig calldata sig\n    ) external payable;\n\n    function addAdapter(address adapter) external;\n\n    function removeAdapter(address adapter) external;\n}\n"
    },
    "contracts/interfaces/IENSReverseRegistrar.sol": {
      "content": "// SPDX-License-Identifier: agpl-3.0\npragma solidity 0.8.9;\n\ninterface IENSReverseRegistrar {\n    /**\n     * @dev Sets the `name()` record for the reverse ENS record associated with\n     * the calling account. First updates the resolver to the default reverse\n     * resolver if necessary.\n     * @param name The name to set for this address.\n     * @return The ENS node hash of the reverse record.\n     */\n    function setName(string memory name) external returns (bytes32);\n}\n"
    },
    "@openzeppelin/contracts-upgradeable/utils/cryptography/ECDSAUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.5.0) (utils/cryptography/ECDSA.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../StringsUpgradeable.sol\";\n\n/**\n * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.\n *\n * These functions can be used to verify that a message was signed by the holder\n * of the private keys of a given address.\n */\nlibrary ECDSAUpgradeable {\n    enum RecoverError {\n        NoError,\n        InvalidSignature,\n        InvalidSignatureLength,\n        InvalidSignatureS,\n        InvalidSignatureV\n    }\n\n    function _throwError(RecoverError error) private pure {\n        if (error == RecoverError.NoError) {\n            return; // no error: do nothing\n        } else if (error == RecoverError.InvalidSignature) {\n            revert(\"ECDSA: invalid signature\");\n        } else if (error == RecoverError.InvalidSignatureLength) {\n            revert(\"ECDSA: invalid signature length\");\n        } else if (error == RecoverError.InvalidSignatureS) {\n            revert(\"ECDSA: invalid signature 's' value\");\n        } else if (error == RecoverError.InvalidSignatureV) {\n            revert(\"ECDSA: invalid signature 'v' value\");\n        }\n    }\n\n    /**\n     * @dev Returns the address that signed a hashed message (`hash`) with\n     * `signature` or error string. This address can then be used for verification purposes.\n     *\n     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:\n     * this function rejects them by requiring the `s` value to be in the lower\n     * half order, and the `v` value to be either 27 or 28.\n     *\n     * IMPORTANT: `hash` _must_ be the result of a hash operation for the\n     * verification to be secure: it is possible to craft signatures that\n     * recover to arbitrary addresses for non-hashed data. A safe way to ensure\n     * this is by receiving a hash of the original message (which may otherwise\n     * be too long), and then calling {toEthSignedMessageHash} on it.\n     *\n     * Documentation for signature generation:\n     * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]\n     * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]\n     *\n     * _Available since v4.3._\n     */\n    function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {\n        // Check the signature length\n        // - case 65: r,s,v signature (standard)\n        // - case 64: r,vs signature (cf https://eips.ethereum.org/EIPS/eip-2098) _Available since v4.1._\n        if (signature.length == 65) {\n            bytes32 r;\n            bytes32 s;\n            uint8 v;\n            // ecrecover takes the signature parameters, and the only way to get them\n            // currently is to use assembly.\n            assembly {\n                r := mload(add(signature, 0x20))\n                s := mload(add(signature, 0x40))\n                v := byte(0, mload(add(signature, 0x60)))\n            }\n            return tryRecover(hash, v, r, s);\n        } else if (signature.length == 64) {\n            bytes32 r;\n            bytes32 vs;\n            // ecrecover takes the signature parameters, and the only way to get them\n            // currently is to use assembly.\n            assembly {\n                r := mload(add(signature, 0x20))\n                vs := mload(add(signature, 0x40))\n            }\n            return tryRecover(hash, r, vs);\n        } else {\n            return (address(0), RecoverError.InvalidSignatureLength);\n        }\n    }\n\n    /**\n     * @dev Returns the address that signed a hashed message (`hash`) with\n     * `signature`. This address can then be used for verification purposes.\n     *\n     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:\n     * this function rejects them by requiring the `s` value to be in the lower\n     * half order, and the `v` value to be either 27 or 28.\n     *\n     * IMPORTANT: `hash` _must_ be the result of a hash operation for the\n     * verification to be secure: it is possible to craft signatures that\n     * recover to arbitrary addresses for non-hashed data. A safe way to ensure\n     * this is by receiving a hash of the original message (which may otherwise\n     * be too long), and then calling {toEthSignedMessageHash} on it.\n     */\n    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {\n        (address recovered, RecoverError error) = tryRecover(hash, signature);\n        _throwError(error);\n        return recovered;\n    }\n\n    /**\n     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.\n     *\n     * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]\n     *\n     * _Available since v4.3._\n     */\n    function tryRecover(\n        bytes32 hash,\n        bytes32 r,\n        bytes32 vs\n    ) internal pure returns (address, RecoverError) {\n        bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);\n        uint8 v = uint8((uint256(vs) >> 255) + 27);\n        return tryRecover(hash, v, r, s);\n    }\n\n    /**\n     * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.\n     *\n     * _Available since v4.2._\n     */\n    function recover(\n        bytes32 hash,\n        bytes32 r,\n        bytes32 vs\n    ) internal pure returns (address) {\n        (address recovered, RecoverError error) = tryRecover(hash, r, vs);\n        _throwError(error);\n        return recovered;\n    }\n\n    /**\n     * @dev Overload of {ECDSA-tryRecover} that receives the `v`,\n     * `r` and `s` signature fields separately.\n     *\n     * _Available since v4.3._\n     */\n    function tryRecover(\n        bytes32 hash,\n        uint8 v,\n        bytes32 r,\n        bytes32 s\n    ) internal pure returns (address, RecoverError) {\n        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature\n        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines\n        // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most\n        // signatures from current libraries generate a unique signature with an s-value in the lower half order.\n        //\n        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value\n        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or\n        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept\n        // these malleable signatures as well.\n        if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {\n            return (address(0), RecoverError.InvalidSignatureS);\n        }\n        if (v != 27 && v != 28) {\n            return (address(0), RecoverError.InvalidSignatureV);\n        }\n\n        // If the signature is valid (and not malleable), return the signer address\n        address signer = ecrecover(hash, v, r, s);\n        if (signer == address(0)) {\n            return (address(0), RecoverError.InvalidSignature);\n        }\n\n        return (signer, RecoverError.NoError);\n    }\n\n    /**\n     * @dev Overload of {ECDSA-recover} that receives the `v`,\n     * `r` and `s` signature fields separately.\n     */\n    function recover(\n        bytes32 hash,\n        uint8 v,\n        bytes32 r,\n        bytes32 s\n    ) internal pure returns (address) {\n        (address recovered, RecoverError error) = tryRecover(hash, v, r, s);\n        _throwError(error);\n        return recovered;\n    }\n\n    /**\n     * @dev Returns an Ethereum Signed Message, created from a `hash`. This\n     * produces hash corresponding to the one signed with the\n     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]\n     * JSON-RPC method as part of EIP-191.\n     *\n     * See {recover}.\n     */\n    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {\n        // 32 is the length in bytes of hash,\n        // enforced by the type signature above\n        return keccak256(abi.encodePacked(\"\\x19Ethereum Signed Message:\\n32\", hash));\n    }\n\n    /**\n     * @dev Returns an Ethereum Signed Message, created from `s`. This\n     * produces hash corresponding to the one signed with the\n     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]\n     * JSON-RPC method as part of EIP-191.\n     *\n     * See {recover}.\n     */\n    function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {\n        return keccak256(abi.encodePacked(\"\\x19Ethereum Signed Message:\\n\", StringsUpgradeable.toString(s.length), s));\n    }\n\n    /**\n     * @dev Returns an Ethereum Signed Typed Data, created from a\n     * `domainSeparator` and a `structHash`. This produces hash corresponding\n     * to the one signed with the\n     * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]\n     * JSON-RPC method as part of EIP-712.\n     *\n     * See {recover}.\n     */\n    function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) {\n        return keccak256(abi.encodePacked(\"\\x19\\x01\", domainSeparator, structHash));\n    }\n}\n"
    },
    "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (proxy/utils/Initializable.sol)\n\npragma solidity ^0.8.2;\n\nimport \"../../utils/AddressUpgradeable.sol\";\n\n/**\n * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed\n * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an\n * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer\n * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.\n *\n * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be\n * reused. This mechanism prevents re-execution of each \"step\" but allows the creation of new initialization steps in\n * case an upgrade adds a module that needs to be initialized.\n *\n * For example:\n *\n * [.hljs-theme-light.nopadding]\n * ```\n * contract MyToken is ERC20Upgradeable {\n *     function initialize() initializer public {\n *         __ERC20_init(\"MyToken\", \"MTK\");\n *     }\n * }\n * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {\n *     function initializeV2() reinitializer(2) public {\n *         __ERC20Permit_init(\"MyToken\");\n *     }\n * }\n * ```\n *\n * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as\n * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.\n *\n * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure\n * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.\n *\n * [CAUTION]\n * ====\n * Avoid leaving a contract uninitialized.\n *\n * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation\n * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke\n * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:\n *\n * [.hljs-theme-light.nopadding]\n * ```\n * /// @custom:oz-upgrades-unsafe-allow constructor\n * constructor() {\n *     _disableInitializers();\n * }\n * ```\n * ====\n */\nabstract contract Initializable {\n    /**\n     * @dev Indicates that the contract has been initialized.\n     * @custom:oz-retyped-from bool\n     */\n    uint8 private _initialized;\n\n    /**\n     * @dev Indicates that the contract is in the process of being initialized.\n     */\n    bool private _initializing;\n\n    /**\n     * @dev Triggered when the contract has been initialized or reinitialized.\n     */\n    event Initialized(uint8 version);\n\n    /**\n     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,\n     * `onlyInitializing` functions can be used to initialize parent contracts. Equivalent to `reinitializer(1)`.\n     */\n    modifier initializer() {\n        bool isTopLevelCall = _setInitializedVersion(1);\n        if (isTopLevelCall) {\n            _initializing = true;\n        }\n        _;\n        if (isTopLevelCall) {\n            _initializing = false;\n            emit Initialized(1);\n        }\n    }\n\n    /**\n     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the\n     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be\n     * used to initialize parent contracts.\n     *\n     * `initializer` is equivalent to `reinitializer(1)`, so a reinitializer may be used after the original\n     * initialization step. This is essential to configure modules that are added through upgrades and that require\n     * initialization.\n     *\n     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in\n     * a contract, executing them in the right order is up to the developer or operator.\n     */\n    modifier reinitializer(uint8 version) {\n        bool isTopLevelCall = _setInitializedVersion(version);\n        if (isTopLevelCall) {\n            _initializing = true;\n        }\n        _;\n        if (isTopLevelCall) {\n            _initializing = false;\n            emit Initialized(version);\n        }\n    }\n\n    /**\n     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the\n     * {initializer} and {reinitializer} modifiers, directly or indirectly.\n     */\n    modifier onlyInitializing() {\n        require(_initializing, \"Initializable: contract is not initializing\");\n        _;\n    }\n\n    /**\n     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.\n     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized\n     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called\n     * through proxies.\n     */\n    function _disableInitializers() internal virtual {\n        _setInitializedVersion(type(uint8).max);\n    }\n\n    function _setInitializedVersion(uint8 version) private returns (bool) {\n        // If the contract is initializing we ignore whether _initialized is set in order to support multiple\n        // inheritance patterns, but we only do this in the context of a constructor, and for the lowest level\n        // of initializers, because in other contexts the contract may have been reentered.\n        if (_initializing) {\n            require(\n                version == 1 && !AddressUpgradeable.isContract(address(this)),\n                \"Initializable: contract is already initialized\"\n            );\n            return false;\n        } else {\n            require(_initialized < version, \"Initializable: contract is already initialized\");\n            _initialized = version;\n            return true;\n        }\n    }\n}\n"
    },
    "@openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev String operations.\n */\nlibrary StringsUpgradeable {\n    bytes16 private constant _HEX_SYMBOLS = \"0123456789abcdef\";\n\n    /**\n     * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n     */\n    function toString(uint256 value) internal pure returns (string memory) {\n        // Inspired by OraclizeAPI's implementation - MIT licence\n        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol\n\n        if (value == 0) {\n            return \"0\";\n        }\n        uint256 temp = value;\n        uint256 digits;\n        while (temp != 0) {\n            digits++;\n            temp /= 10;\n        }\n        bytes memory buffer = new bytes(digits);\n        while (value != 0) {\n            digits -= 1;\n            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));\n            value /= 10;\n        }\n        return string(buffer);\n    }\n\n    /**\n     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\n     */\n    function toHexString(uint256 value) internal pure returns (string memory) {\n        if (value == 0) {\n            return \"0x00\";\n        }\n        uint256 temp = value;\n        uint256 length = 0;\n        while (temp != 0) {\n            length++;\n            temp >>= 8;\n        }\n        return toHexString(value, length);\n    }\n\n    /**\n     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\n     */\n    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\n        bytes memory buffer = new bytes(2 * length + 2);\n        buffer[0] = \"0\";\n        buffer[1] = \"x\";\n        for (uint256 i = 2 * length + 1; i > 1; --i) {\n            buffer[i] = _HEX_SYMBOLS[value & 0xf];\n            value >>= 4;\n        }\n        require(value == 0, \"Strings: hex length insufficient\");\n        return string(buffer);\n    }\n}\n"
    },
    "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary AddressUpgradeable {\n    /**\n     * @dev Returns true if `account` is a contract.\n     *\n     * [IMPORTANT]\n     * ====\n     * It is unsafe to assume that an address for which this function returns\n     * false is an externally-owned account (EOA) and not a contract.\n     *\n     * Among others, `isContract` will return false for the following\n     * types of addresses:\n     *\n     *  - an externally-owned account\n     *  - a contract in construction\n     *  - an address where a contract will be created\n     *  - an address where a contract lived, but was destroyed\n     * ====\n     *\n     * [IMPORTANT]\n     * ====\n     * You shouldn't rely on `isContract` to protect against flash loan attacks!\n     *\n     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n     * constructor.\n     * ====\n     */\n    function isContract(address account) internal view returns (bool) {\n        // This method relies on extcodesize/address.code.length, which returns 0\n        // for contracts in construction, since the code is only stored at the end\n        // of the constructor execution.\n\n        return account.code.length > 0;\n    }\n\n    /**\n     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n     * `recipient`, forwarding all available gas and reverting on errors.\n     *\n     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n     * of certain opcodes, possibly making contracts go over the 2300 gas limit\n     * imposed by `transfer`, making them unable to receive funds via\n     * `transfer`. {sendValue} removes this limitation.\n     *\n     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n     *\n     * IMPORTANT: because control is transferred to `recipient`, care must be\n     * taken to not create reentrancy vulnerabilities. Consider using\n     * {ReentrancyGuard} or the\n     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n     */\n    function sendValue(address payable recipient, uint256 amount) internal {\n        require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n        (bool success, ) = recipient.call{value: amount}(\"\");\n        require(success, \"Address: unable to send value, recipient may have reverted\");\n    }\n\n    /**\n     * @dev Performs a Solidity function call using a low level `call`. A\n     * plain `call` is an unsafe replacement for a function call: use this\n     * function instead.\n     *\n     * If `target` reverts with a revert reason, it is bubbled up by this\n     * function (like regular Solidity function calls).\n     *\n     * Returns the raw returned data. To convert to the expected return value,\n     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n     *\n     * Requirements:\n     *\n     * - `target` must be a contract.\n     * - calling `target` with `data` must not revert.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionCall(target, data, \"Address: low-level call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n     * `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but also transferring `value` wei to `target`.\n     *\n     * Requirements:\n     *\n     * - the calling contract must have an ETH balance of at least `value`.\n     * - the called Solidity function must be `payable`.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(\n        address target,\n        bytes memory data,\n        uint256 value\n    ) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n     * with `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(\n        address target,\n        bytes memory data,\n        uint256 value,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        require(address(this).balance >= value, \"Address: insufficient balance for call\");\n        require(isContract(target), \"Address: call to non-contract\");\n\n        (bool success, bytes memory returndata) = target.call{value: value}(data);\n        return verifyCallResult(success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n        return functionStaticCall(target, data, \"Address: low-level static call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal view returns (bytes memory) {\n        require(isContract(target), \"Address: static call to non-contract\");\n\n        (bool success, bytes memory returndata) = target.staticcall(data);\n        return verifyCallResult(success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the\n     * revert reason using the provided one.\n     *\n     * _Available since v4.3._\n     */\n    function verifyCallResult(\n        bool success,\n        bytes memory returndata,\n        string memory errorMessage\n    ) internal pure returns (bytes memory) {\n        if (success) {\n            return returndata;\n        } else {\n            // Look for revert reason and bubble it up if present\n            if (returndata.length > 0) {\n                // The easiest way to bubble the revert reason is using memory via assembly\n\n                assembly {\n                    let returndata_size := mload(returndata)\n                    revert(add(32, returndata), returndata_size)\n                }\n            } else {\n                revert(errorMessage);\n            }\n        }\n    }\n}\n"
    },
    "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\n\npragma solidity ^0.8.0;\nimport \"../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract ContextUpgradeable is Initializable {\n    function __Context_init() internal onlyInitializing {\n    }\n\n    function __Context_init_unchained() internal onlyInitializing {\n    }\n    function _msgSender() internal view virtual returns (address) {\n        return msg.sender;\n    }\n\n    function _msgData() internal view virtual returns (bytes calldata) {\n        return msg.data;\n    }\n\n    /**\n     * @dev This empty reserved space is put in place to allow future versions to add new\n     * variables without shifting down storage in the inheritance chain.\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n     */\n    uint256[50] private __gap;\n}\n"
    },
    "@openzeppelin/contracts-upgradeable/utils/introspection/IERC165Upgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165Upgradeable {\n    /**\n     * @dev Returns true if this contract implements the interface defined by\n     * `interfaceId`. See the corresponding\n     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n     * to learn more about how these ids are created.\n     *\n     * This function call must use less than 30 000 gas.\n     */\n    function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n"
    },
    "@openzeppelin/contracts-upgradeable/token/ERC721/IERC721ReceiverUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ninterface IERC721ReceiverUpgradeable {\n    /**\n     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}\n     * by `operator` from `from`, this function is called.\n     *\n     * It must return its Solidity selector to confirm the token transfer.\n     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.\n     *\n     * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.\n     */\n    function onERC721Received(\n        address operator,\n        address from,\n        uint256 tokenId,\n        bytes calldata data\n    ) external returns (bytes4);\n}\n"
    },
    "@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20Upgradeable {\n    /**\n     * @dev Emitted when `value` tokens are moved from one account (`from`) to\n     * another (`to`).\n     *\n     * Note that `value` may be zero.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 value);\n\n    /**\n     * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n     * a call to {approve}. `value` is the new allowance.\n     */\n    event Approval(address indexed owner, address indexed spender, uint256 value);\n\n    /**\n     * @dev Returns the amount of tokens in existence.\n     */\n    function totalSupply() external view returns (uint256);\n\n    /**\n     * @dev Returns the amount of tokens owned by `account`.\n     */\n    function balanceOf(address account) external view returns (uint256);\n\n    /**\n     * @dev Moves `amount` tokens from the caller's account to `to`.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transfer(address to, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Returns the remaining number of tokens that `spender` will be\n     * allowed to spend on behalf of `owner` through {transferFrom}. This is\n     * zero by default.\n     *\n     * This value changes when {approve} or {transferFrom} are called.\n     */\n    function allowance(address owner, address spender) external view returns (uint256);\n\n    /**\n     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * IMPORTANT: Beware that changing an allowance with this method brings the risk\n     * that someone may use both the old and the new allowance by unfortunate\n     * transaction ordering. One possible solution to mitigate this race\n     * condition is to first reduce the spender's allowance to 0 and set the\n     * desired value afterwards:\n     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address spender, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Moves `amount` tokens from `from` to `to` using the\n     * allowance mechanism. `amount` is then deducted from the caller's\n     * allowance.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(\n        address from,\n        address to,\n        uint256 amount\n    ) external returns (bool);\n}\n"
    },
    "@openzeppelin/contracts-upgradeable/interfaces/IERC1271Upgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (interfaces/IERC1271.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC1271 standard signature validation method for\n * contracts as defined in https://eips.ethereum.org/EIPS/eip-1271[ERC-1271].\n *\n * _Available since v4.1._\n */\ninterface IERC1271Upgradeable {\n    /**\n     * @dev Should return whether the signature provided is valid for the provided data\n     * @param hash      Hash of the data to be signed\n     * @param signature Signature byte array associated with _data\n     */\n    function isValidSignature(bytes32 hash, bytes memory signature) external view returns (bytes4 magicValue);\n}\n"
    },
    "contracts/interfaces/ILendPoolAddressesProvider.sol": {
      "content": "// SPDX-License-Identifier: agpl-3.0\npragma solidity 0.8.9;\n\n/**\n * @title LendPoolAddressesProvider contract\n * @dev Main registry of addresses part of or connected to the protocol, including permissioned roles\n * - Acting also as factory of proxies and admin of those, so with right to change its implementations\n * - Owned by the Bend Governance\n * @author Bend\n **/\ninterface ILendPoolAddressesProvider {\n    function getLendPool() external view returns (address);\n}\n"
    },
    "contracts/interfaces/IAaveLendPool.sol": {
      "content": "// SPDX-License-Identifier: agpl-3.0\npragma solidity 0.8.9;\n\ninterface IAaveLendPool {\n    /**\n     * @dev Allows smartcontracts to access the liquidity of the pool within one transaction,\n     * as long as the amount taken plus a fee is returned.\n     * IMPORTANT There are security concerns for developers of flashloan receiver contracts that must be kept into consideration.\n     * For further details please visit https://developers.aave.com\n     * @param receiverAddress The address of the contract receiving the funds, implementing the IFlashLoanReceiver interface\n     * @param assets The addresses of the assets being flash-borrowed\n     * @param amounts The amounts amounts being flash-borrowed\n     * @param modes Types of the debt to open if the flash loan is not returned:\n     *   0 -> Don't open any debt, just revert if funds can't be transferred from the receiver\n     *   1 -> Open debt at stable rate for the value of the amount flash-borrowed to the `onBehalfOf` address\n     *   2 -> Open debt at variable rate for the value of the amount flash-borrowed to the `onBehalfOf` address\n     * @param onBehalfOf The address  that will receive the debt in the case of using on `modes` 1 or 2\n     * @param params Variadic packed params to pass to the receiver as extra information\n     * @param referralCode Code used to register the integrator originating the operation, for potential rewards.\n     *   0 if the action is executed directly by the user, without any middle-man\n     **/\n    function flashLoan(\n        address receiverAddress,\n        address[] calldata assets,\n        uint256[] calldata amounts,\n        uint256[] calldata modes,\n        address onBehalfOf,\n        bytes calldata params,\n        uint16 referralCode\n    ) external;\n}\n"
    }
  },
  "settings": {
    "optimizer": {
      "enabled": true,
      "runs": 888888
    },
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
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          "devdoc",
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        ]
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    "libraries": {}
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}