{
    "Function": "setBatchManagerAnnualInterestRate",
    "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",
        "ISortedTroves",
        "ITroveManager",
        "IActivePool",
        "ISortedTroves",
        "ITroveManager"
    ],
    "Internal Calls": [
        "_calcUpfrontFee",
        "_requireValidInterestBatchManager",
        "_requireOraclesLive",
        "_getNewTCRFromTroveChange",
        "_requireBatchInterestRateChangePeriodPassed",
        "_requireUserAcceptsUpfrontFee",
        "_requireNewTCRisAboveCCR",
        "_requireIsNotShutDown",
        "_requireInterestRateInBatchManagerRange"
    ],
    "Library Calls": [],
    "Low-Level Calls": [],
    "Code": "function setBatchManagerAnnualInterestRate(\n        uint128 _newAnnualInterestRate,\n        uint256 _upperHint,\n        uint256 _lowerHint,\n        uint256 _maxUpfrontFee\n    ) external {\n        _requireIsNotShutDown();\n        _requireValidInterestBatchManager(msg.sender);\n        _requireInterestRateInBatchManagerRange(msg.sender, _newAnnualInterestRate);\n        // Not needed, implicitly checked in the condition above:\n        //_requireValidAnnualInterestRate(_newAnnualInterestRate);\n\n        ITroveManager troveManagerCached = troveManager;\n        IActivePool activePoolCached = activePool;\n\n        LatestBatchData memory batch = troveManagerCached.getLatestBatchData(msg.sender);\n        _requireBatchInterestRateChangePeriodPassed(msg.sender, uint256(batch.lastInterestRateAdjTime));\n\n        uint256 newDebt = batch.entireDebtWithoutRedistribution;\n\n        TroveChange memory batchChange;\n        batchChange.batchAccruedManagementFee = batch.accruedManagementFee;\n        batchChange.oldWeightedRecordedDebt = batch.weightedRecordedDebt;\n        batchChange.newWeightedRecordedDebt = newDebt * _newAnnualInterestRate;\n        batchChange.oldWeightedRecordedBatchManagementFee = batch.weightedRecordedBatchManagementFee;\n        batchChange.newWeightedRecordedBatchManagementFee = newDebt * batch.annualManagementFee;\n\n        // Apply upfront fee on premature adjustments\n        if (\n            batch.annualInterestRate != _newAnnualInterestRate &&\n            block.timestamp < batch.lastInterestRateAdjTime + INTEREST_RATE_ADJ_COOLDOWN\n        ) {\n            uint256 price = _requireOraclesLive();\n\n            uint256 avgInterestRate = activePoolCached.getNewApproxAvgInterestRateFromTroveChange(batchChange);\n            batchChange.upfrontFee = _calcUpfrontFee(newDebt, avgInterestRate);\n            _requireUserAcceptsUpfrontFee(batchChange.upfrontFee, _maxUpfrontFee);\n\n            newDebt += batchChange.upfrontFee;\n\n            // Recalculate the batch's weighted terms, now taking into account the upfront fee\n            batchChange.newWeightedRecordedDebt = newDebt * _newAnnualInterestRate;\n            batchChange.newWeightedRecordedBatchManagementFee = newDebt * batch.annualManagementFee;\n\n            // Disallow a premature adjustment if it would result in TCR < CCR\n            // (which includes the case when TCR is already below CCR before the adjustment).\n            uint256 newTCR = _getNewTCRFromTroveChange(batchChange, price);\n            _requireNewTCRisAboveCCR(newTCR);\n        }\n\n        activePoolCached.mintAggInterestAndAccountForTroveChange(batchChange, msg.sender);\n\n        // Check batch is not empty, and then reinsert in sorted list\n        if (!sortedTroves.isEmptyBatch(BatchId.wrap(msg.sender))) {\n            sortedTroves.reInsertBatch(BatchId.wrap(msg.sender), _newAnnualInterestRate, _upperHint, _lowerHint);\n        }\n\n        troveManagerCached.onSetBatchManagerAnnualInterestRate(\n            msg.sender,\n            batch.entireCollWithoutRedistribution,\n            newDebt,\n            _newAnnualInterestRate,\n            batchChange.upfrontFee\n        );\n    }"
}