_calculateDebt

Overview

Execution flow

• cache + updateState + get health factor

• _calculateDebt

• validateLiquidationCall

• getConfigurationData

• calculateAvailableCollateralToLiquidate

• setBorrowing

• setUsingAsCollateral

• _burnDebtTokens

• updateInterestRates

• updateIsolatedDebtIfIsolated

• liquidate/burn collateral

• liquidation fee

• Wrap-up

_calculateDebt

Calculates the total debt of the user and the actual amount to liquidate depending on the health factor. Returns:

• userVariableDebt

• userTotalDebt

• actualDebtToLiquidate

• getUserCurrentDebt will return the user's balance of debt tokens (stable & variable)

• healthFactor was obtained previously through calculateUserAccountData

• If user's healthFactor > 0.95: liquidation close factor is 0.5 (50%.00)

• If user's healthFactor <= 0.95: liquidation close factor is 1.0 (100.00%)

The close factor determines the maximum liquidatable debt, per valid liquidationCall().

close factor = 0.5, means only a maximum of 50% of the debt can be liquidated within that liquidationCall.

On Partial and Full liquidation: actualDebtToLiquidate

If the liquidator's debtToCover is > maxLiquidatableDebt, set the actualDebtToLiquidate to be maxLiquidatableDebt.

Else, If the liquidator's debtToCover is <= maxLiquidatableDebt, set the actualDebtToLiquidate to be debtToCover.