{
    "Function": "purchaseArbitrageTokens",
    "File": "contracts/Auction/Auction.sol",
    "Parent Contracts": [
        "contracts/StabilizedPoolExtensions/ProfitDistributorExtension.sol",
        "contracts/StabilizedPoolExtensions/DexHandlerExtension.sol",
        "contracts/StabilizedPoolExtensions/DataLabExtension.sol",
        "contracts/StabilizedPoolExtensions/StabilizerNodeExtension.sol",
        "contracts/StabilizedPoolExtensions/LiquidityExtensionExtension.sol",
        "contracts/StabilizedPoolExtensions/StabilizedPoolUnit.sol",
        "contracts/Permissions.sol",
        "lib/openzeppelin-contracts/contracts/security/ReentrancyGuard.sol",
        "lib/openzeppelin-contracts/contracts/access/AccessControl.sol",
        "lib/openzeppelin-contracts/contracts/utils/introspection/ERC165.sol",
        "lib/openzeppelin-contracts/contracts/utils/introspection/IERC165.sol",
        "lib/openzeppelin-contracts/contracts/access/IAccessControl.sol",
        "lib/openzeppelin-contracts/contracts/utils/Context.sol"
    ],
    "High-Level Calls": [
        "ERC20",
        "SafeERC20",
        "ERC20",
        "ILiquidityExtension"
    ],
    "Internal Calls": [
        "auctionActive",
        "require(bool,string)",
        "require(bool,string)",
        "require(bool,string)",
        "_capCommitment",
        "require(bool,string)",
        "require(bool,string)",
        "require(bool,string)",
        "_endAuction",
        "nonReentrant",
        "require(bool,string)",
        "require(bool,string)",
        "onlyActive"
    ],
    "Library Calls": [
        "safeTransferFrom"
    ],
    "Low-Level Calls": [],
    "Code": "function purchaseArbitrageTokens(uint256 amount, uint256 minPurchased)\n    external\n    nonReentrant\n    onlyActive\n  {\n    uint256 currentAuction = currentAuctionId;\n    require(auctionActive(currentAuction), \"No auction running\");\n    require(amount != 0, \"purchaseArb: 0 amount\");\n\n    uint256 oldBalance = collateralToken.balanceOf(address(liquidityExtension));\n\n    collateralToken.safeTransferFrom(\n      msg.sender,\n      address(liquidityExtension),\n      amount\n    );\n\n    uint256 realAmount = collateralToken.balanceOf(\n      address(liquidityExtension)\n    ) - oldBalance;\n\n    require(realAmount <= amount, \"Invalid amount\");\n\n    uint256 realCommitment = _capCommitment(currentAuction, realAmount);\n    require(realCommitment != 0, \"ArbTokens: Real Commitment 0\");\n\n    uint256 purchased = liquidityExtension.purchaseAndBurn(realCommitment);\n    require(purchased >= minPurchased, \"ArbTokens: Insufficient output\");\n\n    AuctionData storage auction = idToAuction[currentAuction];\n\n    require(\n      auction.startingTime <= block.timestamp,\n      \"Auction hasn't started yet\"\n    );\n    require(auction.endingTime > block.timestamp, \"Auction is already over\");\n    require(auction.active == true, \"Auction is not active\");\n\n    auction.commitments = auction.commitments + realCommitment;\n\n    if (auction.accountCommitments[msg.sender].commitment == 0) {\n      accountCommitmentEpochs[msg.sender].push(currentAuction);\n    }\n    auction.accountCommitments[msg.sender].commitment =\n      auction.accountCommitments[msg.sender].commitment +\n      realCommitment;\n    auction.accountCommitments[msg.sender].maltPurchased =\n      auction.accountCommitments[msg.sender].maltPurchased +\n      purchased;\n    auction.maltPurchased = auction.maltPurchased + purchased;\n\n    emit AuctionCommitment(\n      nextCommitmentId,\n      currentAuction,\n      msg.sender,\n      realCommitment,\n      purchased\n    );\n\n    nextCommitmentId = nextCommitmentId + 1;\n\n    if (auction.commitments + auction.pegPrice >= auction.maxCommitments) {\n      _endAuction(currentAuction);\n    }\n  }"
}