{
    "Function": "liquidate",
    "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": [
        "EnumerableSetUpgradeable",
        "IStableCoin",
        "IERC721Upgradeable"
    ],
    "Internal Calls": [
        "onlyRole",
        "nonReentrant",
        "require(bool,string)",
        "validNFTIndex",
        "require(bool,string)",
        "_getLiquidationLimit",
        "require(bool,string)",
        "accrue",
        "_getDebtAmount"
    ],
    "Library Calls": [
        "remove"
    ],
    "Low-Level Calls": [],
    "Code": "function liquidate(uint256 _nftIndex)\n        external\n        onlyRole(LIQUIDATOR_ROLE)\n        validNFTIndex(_nftIndex)\n        nonReentrant\n    {\n        accrue();\n\n        address posOwner = positionOwner[_nftIndex];\n        require(posOwner != address(0), \"position_not_exist\");\n\n        Position storage position = positions[_nftIndex];\n        require(position.liquidatedAt == 0, \"liquidated\");\n\n        uint256 debtAmount = _getDebtAmount(_nftIndex);\n        require(\n            debtAmount >= _getLiquidationLimit(_nftIndex),\n            \"position_not_liquidatable\"\n        );\n\n        // burn all payment\n        stablecoin.burnFrom(msg.sender, debtAmount);\n\n        // update debt portion\n        totalDebtPortion -= position.debtPortion;\n        totalDebtAmount -= debtAmount;\n        position.debtPortion = 0;\n\n        bool insured = position.borrowType == BorrowType.USE_INSURANCE;\n        if (insured) {\n            position.debtAmountForRepurchase = debtAmount;\n            position.liquidatedAt = block.timestamp;\n            position.liquidator = msg.sender;\n        } else {\n            // transfer nft to liquidator\n            positionOwner[_nftIndex] = address(0);\n            delete positions[_nftIndex];\n            positionIndexes.remove(_nftIndex);\n            nftContract.safeTransferFrom(address(this), msg.sender, _nftIndex);\n        }\n\n        emit Liquidated(msg.sender, posOwner, _nftIndex, insured);\n    }"
}