{
    "Function": "closePosition",
    "File": "contracts/vaults/NFTVault.sol",
    "Parent Contracts": [
        "node_modules/@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol",
        "node_modules/@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol",
        "node_modules/@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol",
        "node_modules/@openzeppelin/contracts-upgradeable/utils/introspection/IERC165Upgradeable.sol",
        "node_modules/@openzeppelin/contracts-upgradeable/access/IAccessControlUpgradeable.sol",
        "node_modules/@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol",
        "node_modules/@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol"
    ],
    "High-Level Calls": [
        "IERC721Upgradeable",
        "IERC721Upgradeable",
        "EnumerableSetUpgradeable"
    ],
    "Internal Calls": [
        "require(bool,string)",
        "validNFTIndex",
        "require(bool,string)",
        "accrue",
        "_getDebtAmount"
    ],
    "Library Calls": [
        "remove"
    ],
    "Low-Level Calls": [],
    "Code": "function closePosition(uint256 _nftIndex)\n        external\n        validNFTIndex(_nftIndex)\n    {\n        accrue();\n\n        require(msg.sender == positionOwner[_nftIndex], \"unauthorized\");\n        require(_getDebtAmount(_nftIndex) == 0, \"position_not_repaid\");\n\n        positionOwner[_nftIndex] = address(0);\n        delete positions[_nftIndex];\n        positionIndexes.remove(_nftIndex);\n\n        // transfer nft back to owner if nft was deposited\n        if (nftContract.ownerOf(_nftIndex) == address(this)) {\n            nftContract.safeTransferFrom(address(this), msg.sender, _nftIndex);\n        }\n\n        emit PositionClosed(msg.sender, _nftIndex);\n    }"
}