{
    "Function": "_buyQuote",
    "File": "src/LamboVEthRouter.sol",
    "Parent Contracts": [
        "lib/openzeppelin-contracts/contracts/utils/ReentrancyGuard.sol",
        "lib/openzeppelin-contracts/contracts/access/Ownable.sol",
        "lib/openzeppelin-contracts/contracts/utils/Context.sol"
    ],
    "High-Level Calls": [
        "IUniswapV2Pair",
        "UniswapV2Library",
        "UniswapV2Library",
        "VirtualToken",
        "SafeERC20",
        "UniswapV2Library"
    ],
    "Internal Calls": [
        "require(bool,string)",
        "owner",
        "require(bool,string)",
        "require(bool,string)",
        "require(bool,string)"
    ],
    "Library Calls": [
        "getReserves",
        "safeTransfer",
        "getAmountOut",
        "pairFor"
    ],
    "Low-Level Calls": [
        "call",
        "call"
    ],
    "Code": "function _buyQuote(address quoteToken, uint256 amountXIn, uint256 minReturn) internal returns (uint256 amountYOut) {\n        require(msg.value >= amountXIn, \"Insufficient msg.value\");\n\n        // handle fee\n        uint256 fee = (amountXIn * feeRate) / feeDenominator;\n        amountXIn = amountXIn - fee;\n        (bool success, ) = payable(owner()).call{value: fee}(\"\");\n        require(success, \"Transfer to Owner failed\");\n\n        // handle swap\n        address pair = UniswapV2Library.pairFor(LaunchPadUtils.UNISWAP_POOL_FACTORY_, vETH, quoteToken);\n\n        (uint256 reserveIn, uint256 reserveOut) = UniswapV2Library.getReserves(\n            LaunchPadUtils.UNISWAP_POOL_FACTORY_,\n            vETH,\n            quoteToken\n        );\n\n        // Calculate the amount of quoteToken to be received\n        amountYOut = UniswapV2Library.getAmountOut(amountXIn, reserveIn, reserveOut);\n        require(amountYOut >= minReturn, \"Insufficient output amount\");\n\n        // Transfer vETH to the pair\n        VirtualToken(vETH).cashIn{value: amountXIn}(amountXIn);\n        IERC20(vETH).safeTransfer(pair, amountXIn);\n\n        // Perform the swap\n        (uint256 amount0Out, uint256 amount1Out) = vETH < quoteToken\n            ? (uint256(0), amountYOut)\n            : (amountYOut, uint256(0));\n        IUniswapV2Pair(pair).swap(amount0Out, amount1Out, msg.sender, new bytes(0));\n\n        if (msg.value > (amountXIn + fee + 1)) {\n            (bool success, ) = payable(msg.sender).call{value: msg.value - amountXIn - fee - 1}(\"\");\n            require(success, \"ETH transfer failed\");\n        }\n\n        emit BuyQuote(quoteToken, amountXIn, amountYOut);\n    }"
}