{
    "Function": "_adjustTrove",
    "File": "contracts/src/BorrowerOperations.sol",
    "Parent Contracts": [
        "contracts/src/Interfaces/IBorrowerOperations.sol",
        "contracts/src/Dependencies/AddRemoveManagers.sol",
        "contracts/src/Interfaces/IAddRemoveManagers.sol",
        "contracts/src/Dependencies/LiquityBase.sol",
        "contracts/src/Interfaces/ILiquityBase.sol"
    ],
    "High-Level Calls": [
        "IActivePool",
        "ITroveNFT",
        "IActivePool",
        "ITroveManager",
        "ITroveManager",
        "ITroveManager",
        "LiquityMath",
        "ITroveManager"
    ],
    "Internal Calls": [
        "_requireSenderIsOwnerOrRemoveManagerAndGetReceiver",
        "_requireValidCollWithdrawal",
        "_requireValidAdjustmentInCurrentMode",
        "_requireSenderIsOwnerOrAddManager",
        "_requireNonZeroAdjustment",
        "_requireTroveIsOpen",
        "_requireIsNotShutDown",
        "_requireUserAcceptsUpfrontFee",
        "_requireAtLeastMinDebt",
        "_requireOraclesLive",
        "_moveTokensFromAdjustment",
        "_calcUpfrontFee",
        "_requireSufficientBoldBalance",
        "_checkBelowCriticalThreshold"
    ],
    "Library Calls": [
        "_computeCR"
    ],
    "Low-Level Calls": [],
    "Code": "function _adjustTrove(\n        ITroveManager _troveManager,\n        uint256 _troveId,\n        TroveChange memory _troveChange,\n        uint256 _maxUpfrontFee\n    ) internal {\n        _requireIsNotShutDown();\n\n        LocalVariables_adjustTrove memory vars;\n        vars.activePool = activePool;\n        vars.boldToken = boldToken;\n\n        vars.price = _requireOraclesLive();\n        vars.isBelowCriticalThreshold = _checkBelowCriticalThreshold(vars.price, CCR);\n\n        // --- Checks ---\n\n        _requireTroveIsOpen(_troveManager, _troveId);\n\n        address owner = troveNFT.ownerOf(_troveId);\n        address receiver = owner; // If it\u2019s a withdrawal, and manager has receive privilege, manager would be the receiver\n\n        if (_troveChange.collDecrease > 0 || _troveChange.debtIncrease > 0) {\n            receiver = _requireSenderIsOwnerOrRemoveManagerAndGetReceiver(_troveId, owner);\n        }\n\n        if (_troveChange.collIncrease > 0 || _troveChange.debtDecrease > 0) {\n            _requireSenderIsOwnerOrAddManager(_troveId, owner);\n        }\n\n        vars.trove = _troveManager.getLatestTroveData(_troveId);\n\n        // When the adjustment is a debt repayment, check it's a valid amount and that the caller has enough Bold\n        if (_troveChange.debtDecrease > 0) {\n            uint256 maxRepayment = vars.trove.entireDebt > MIN_DEBT ? vars.trove.entireDebt - MIN_DEBT : 0;\n            if (_troveChange.debtDecrease > maxRepayment) {\n                _troveChange.debtDecrease = maxRepayment;\n            }\n            _requireSufficientBoldBalance(vars.boldToken, msg.sender, _troveChange.debtDecrease);\n        }\n\n        _requireNonZeroAdjustment(_troveChange);\n\n        // When the adjustment is a collateral withdrawal, check that it's no more than the Trove's entire collateral\n        if (_troveChange.collDecrease > 0) {\n            _requireValidCollWithdrawal(vars.trove.entireColl, _troveChange.collDecrease);\n        }\n\n        vars.newColl = vars.trove.entireColl + _troveChange.collIncrease - _troveChange.collDecrease;\n        vars.newDebt = vars.trove.entireDebt + _troveChange.debtIncrease - _troveChange.debtDecrease;\n\n        address batchManager = interestBatchManagerOf[_troveId];\n        bool isTroveInBatch = batchManager != address(0);\n        LatestBatchData memory batch;\n        uint256 batchFutureDebt;\n        if (isTroveInBatch) {\n            batch = _troveManager.getLatestBatchData(batchManager);\n\n            batchFutureDebt =\n                batch.entireDebtWithoutRedistribution +\n                vars.trove.redistBoldDebtGain +\n                _troveChange.debtIncrease -\n                _troveChange.debtDecrease;\n\n            _troveChange.appliedRedistBoldDebtGain = vars.trove.redistBoldDebtGain;\n            _troveChange.appliedRedistCollGain = vars.trove.redistCollGain;\n            _troveChange.batchAccruedManagementFee = batch.accruedManagementFee;\n            _troveChange.oldWeightedRecordedDebt = batch.weightedRecordedDebt;\n            _troveChange.newWeightedRecordedDebt = batchFutureDebt * batch.annualInterestRate;\n            _troveChange.oldWeightedRecordedBatchManagementFee = batch.weightedRecordedBatchManagementFee;\n            _troveChange.newWeightedRecordedBatchManagementFee = batchFutureDebt * batch.annualManagementFee;\n        } else {\n            _troveChange.appliedRedistBoldDebtGain = vars.trove.redistBoldDebtGain;\n            _troveChange.appliedRedistCollGain = vars.trove.redistCollGain;\n            _troveChange.oldWeightedRecordedDebt = vars.trove.weightedRecordedDebt;\n            _troveChange.newWeightedRecordedDebt = vars.newDebt * vars.trove.annualInterestRate;\n        }\n\n        // Pay an upfront fee on debt increases\n        if (_troveChange.debtIncrease > 0) {\n            uint256 avgInterestRate = vars.activePool.getNewApproxAvgInterestRateFromTroveChange(_troveChange);\n            _troveChange.upfrontFee = _calcUpfrontFee(_troveChange.debtIncrease, avgInterestRate);\n            _requireUserAcceptsUpfrontFee(_troveChange.upfrontFee, _maxUpfrontFee);\n\n            vars.newDebt += _troveChange.upfrontFee;\n            if (isTroveInBatch) {\n                batchFutureDebt += _troveChange.upfrontFee;\n                // Recalculate newWeightedRecordedDebt, now taking into account the upfront fee\n                _troveChange.newWeightedRecordedDebt = batchFutureDebt * batch.annualInterestRate;\n                _troveChange.newWeightedRecordedBatchManagementFee = batchFutureDebt * batch.annualManagementFee;\n            } else {\n                // Recalculate newWeightedRecordedDebt, now taking into account the upfront fee\n                _troveChange.newWeightedRecordedDebt = vars.newDebt * vars.trove.annualInterestRate;\n            }\n        }\n\n        // Make sure the Trove doesn't end up zombie\n        // Now the max repayment is capped to stay above MIN_DEBT, so this only applies to adjustZombieTrove\n        _requireAtLeastMinDebt(vars.newDebt);\n\n        vars.newICR = LiquityMath._computeCR(vars.newColl, vars.newDebt, vars.price);\n\n        // Check the adjustment satisfies all conditions for the current system mode\n        _requireValidAdjustmentInCurrentMode(_troveChange, vars, isTroveInBatch);\n\n        // --- Effects and interactions ---\n\n        if (isTroveInBatch) {\n            _troveManager.onAdjustTroveInsideBatch(\n                _troveId,\n                vars.newColl,\n                vars.newDebt,\n                _troveChange,\n                batchManager,\n                batch.entireCollWithoutRedistribution,\n                batch.entireDebtWithoutRedistribution\n            );\n        } else {\n            _troveManager.onAdjustTrove(_troveId, vars.newColl, vars.newDebt, _troveChange);\n        }\n\n        vars.activePool.mintAggInterestAndAccountForTroveChange(_troveChange, batchManager);\n        _moveTokensFromAdjustment(receiver, _troveChange, vars.boldToken, vars.activePool);\n    }"
}