{
    "Function": "onOpenTrove",
    "File": "contracts/src/TroveManager.sol",
    "Parent Contracts": [
        "contracts/src/Interfaces/ITroveEvents.sol",
        "contracts/src/Interfaces/ITroveManager.sol",
        "contracts/src/Dependencies/LiquityBase.sol",
        "contracts/src/Interfaces/ILiquityBase.sol"
    ],
    "High-Level Calls": [
        "ITroveNFT"
    ],
    "Internal Calls": [
        "_updateTroveRewardSnapshots",
        "_requireCallerIsBorrowerOperations",
        "_computeNewStake"
    ],
    "Library Calls": [],
    "Low-Level Calls": [],
    "Code": "function onOpenTrove(\n        address _owner,\n        uint256 _troveId,\n        TroveChange memory _troveChange,\n        uint256 _annualInterestRate\n    ) external {\n        _requireCallerIsBorrowerOperations();\n\n        uint256 newStake = _computeNewStake(_troveChange.collIncrease);\n\n        // Trove memory newTrove;\n        Troves[_troveId].debt = _troveChange.debtIncrease + _troveChange.upfrontFee;\n        Troves[_troveId].coll = _troveChange.collIncrease;\n        Troves[_troveId].stake = newStake;\n        Troves[_troveId].status = Status.active;\n        Troves[_troveId].arrayIndex = uint64(TroveIds.length);\n        Troves[_troveId].lastDebtUpdateTime = uint64(block.timestamp);\n        Troves[_troveId].lastInterestRateAdjTime = uint64(block.timestamp);\n        Troves[_troveId].annualInterestRate = _annualInterestRate;\n\n        // Push the trove's id to the Trove list\n        TroveIds.push(_troveId);\n\n        uint256 newTotalStakes = totalStakes + newStake;\n        totalStakes = newTotalStakes;\n\n        // mint ERC721\n        troveNFT.mint(_owner, _troveId);\n\n        _updateTroveRewardSnapshots(_troveId);\n\n        emit TroveUpdated({\n            _troveId: _troveId,\n            _debt: _troveChange.debtIncrease + _troveChange.upfrontFee,\n            _coll: _troveChange.collIncrease,\n            _stake: newStake,\n            _annualInterestRate: _annualInterestRate,\n            _snapshotOfTotalCollRedist: L_coll,\n            _snapshotOfTotalDebtRedist: L_boldDebt\n        });\n\n        emit TroveOperation({\n            _troveId: _troveId,\n            _operation: Operation.openTrove,\n            _annualInterestRate: _annualInterestRate,\n            _debtIncreaseFromRedist: 0,\n            _debtIncreaseFromUpfrontFee: _troveChange.upfrontFee,\n            _debtChangeFromOperation: int256(_troveChange.debtIncrease),\n            _collIncreaseFromRedist: 0,\n            _collChangeFromOperation: int256(_troveChange.collIncrease)\n        });\n    }"
}