{
    "Function": "buyAsset",
    "File": "src/kuma-protocol/mocks/MockKUMASwapV2.sol",
    "Parent Contracts": [
        "lib/openzeppelin-contracts/contracts/proxy/utils/UUPSUpgradeable.sol",
        "lib/openzeppelin-contracts/contracts/proxy/ERC1967/ERC1967Upgrade.sol",
        "lib/openzeppelin-contracts/contracts/interfaces/draft-IERC1822.sol",
        "lib/openzeppelin-contracts-upgradeable/contracts/security/PausableUpgradeable.sol",
        "lib/openzeppelin-contracts-upgradeable/contracts/utils/ContextUpgradeable.sol",
        "lib/openzeppelin-contracts-upgradeable/contracts/proxy/utils/Initializable.sol",
        "src/kuma-protocol/mocks/interfaces/IMockKUMASwapV2.sol",
        "lib/openzeppelin-contracts/contracts/token/ERC721/IERC721Receiver.sol"
    ],
    "High-Level Calls": [
        "IKBCToken",
        "IKUMAAddressProvider",
        "EnumerableSet",
        "EnumerableSet",
        "EnumerableSet",
        "EnumerableSet",
        "IKUMAAddressProvider",
        "IKUMABondToken",
        "EnumerableSet",
        "IKIBToken",
        "IKIBToken",
        "WadRayMath",
        "IKUMAAddressProvider",
        "IKUMABondToken",
        "IKIBToken",
        "WadRayMath",
        "EnumerableSet",
        "IKIBToken"
    ],
    "Internal Calls": [
        "_getBondValue",
        "_updateMinCoupon",
        "whenNotPaused",
        "revert EXPIRED_BONDS_MUST_BE_BOUGHT_FIRST()",
        "whenNotDeprecated",
        "revert INVALID_TOKEN_ID()"
    ],
    "Library Calls": [
        "remove",
        "rayToWad",
        "length",
        "remove",
        "remove",
        "contains",
        "contains",
        "rayMul"
    ],
    "Low-Level Calls": [],
    "Code": "function buyAsset(uint256 tokenId) external override whenNotPaused whenNotDeprecated {\n        IKUMAAddressProvider KUMAAddressProvider = _KUMAAddressProvider;\n        IKUMABondToken KUMABondToken = IKUMABondToken(KUMAAddressProvider.getKUMABondToken());\n        IKUMABondToken.Bond memory bond = KUMABondToken.getBond(tokenId);\n\n        if (!_bondReserve.contains(tokenId)) {\n            revert Errors.INVALID_TOKEN_ID();\n        }\n\n        bool isBondExpired = _expiredBonds.contains(tokenId);\n\n        if (_expiredBonds.length() > 0 && !isBondExpired) {\n            revert Errors.EXPIRED_BONDS_MUST_BE_BOUGHT_FIRST();\n        }\n\n        if (_couponInventory[bond.coupon] == 1) {\n            _coupons.remove(bond.coupon);\n        }\n\n        _couponInventory[bond.coupon]--;\n        _bondReserve.remove(tokenId);\n\n        if (isBondExpired) {\n            _expiredBonds.remove(tokenId);\n        }\n\n        IKIBToken KIBToken = IKIBToken(_KUMAAddressProvider.getKIBToken(_riskCategory));\n\n        uint256 bondFaceValue = _getBondValue(bond.issuance, bond.term, bond.coupon, bond.principal);\n        uint256 realizedBondValue = _bondBaseValue[tokenId].rayMul(KIBToken.getUpdatedCumulativeYield()).rayToWad();\n\n        bool requireClone = bondFaceValue > realizedBondValue;\n\n        if (requireClone) {\n            _cloneBonds[tokenId] = IKBCToken(_KUMAAddressProvider.getKBCToken()).issueBond(\n                msg.sender,\n                IKBCToken.CloneBond({\n                    parentId: tokenId,\n                    issuance: KIBToken.getPreviousEpochTimestamp(),\n                    coupon: KIBToken.getYield(),\n                    principal: realizedBondValue\n                })\n            );\n        }\n\n        _updateMinCoupon();\n\n        KIBToken.burn(msg.sender, realizedBondValue);\n\n        if (!requireClone) {\n            KUMABondToken.safeTransferFrom(address(this), msg.sender, tokenId);\n        }\n\n        emit BondBought(tokenId, realizedBondValue, msg.sender);\n    }"
}