AaveV2Ethereum_StablecoinIRUpdates_20240424.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {AaveV2EthereumAssets} from 'aave-address-book/AaveV2Ethereum.sol';
import {AaveV2PayloadEthereum} from 'aave-helpers/v2-config-engine/AaveV2PayloadEthereum.sol';
import {EngineFlags} from 'aave-helpers/v3-config-engine/EngineFlags.sol';
import {IAaveV2ConfigEngine} from 'aave-helpers/v2-config-engine/IAaveV2ConfigEngine.sol';
import {IV2RateStrategyFactory} from 'aave-helpers/v2-config-engine/IV2RateStrategyFactory.sol';
/**
 * @title StablecoinIRUpdates
 * @author Chaos Labs, ACI
 * - Snapshot: Direct-to-AIP
 * - Discussion: https://governance.aave.com/t/arfc-stablecoin-ir-curve-amendment-on-aave-v2-and-v3-04-22-2024/17450
 */
contract AaveV2Ethereum_StablecoinIRUpdates_20240424 is AaveV2PayloadEthereum {
  function rateStrategiesUpdates()
    public
    pure
    override
    returns (IAaveV2ConfigEngine.RateStrategyUpdate[] memory)
  {
    IAaveV2ConfigEngine.RateStrategyUpdate[]
      memory rateStrategies = new IAaveV2ConfigEngine.RateStrategyUpdate[](3);
    rateStrategies[0] = IAaveV2ConfigEngine.RateStrategyUpdate({
      asset: AaveV2EthereumAssets.USDT_UNDERLYING,
      params: IV2RateStrategyFactory.RateStrategyParams({
        optimalUtilizationRate: EngineFlags.KEEP_CURRENT,
        baseVariableBorrowRate: EngineFlags.KEEP_CURRENT,
        variableRateSlope1: _bpsToRay(9_00),
        variableRateSlope2: EngineFlags.KEEP_CURRENT,
        stableRateSlope1: EngineFlags.KEEP_CURRENT,
        stableRateSlope2: EngineFlags.KEEP_CURRENT
      })
    });
    rateStrategies[1] = IAaveV2ConfigEngine.RateStrategyUpdate({
      asset: AaveV2EthereumAssets.DAI_UNDERLYING,
      params: IV2RateStrategyFactory.RateStrategyParams({
        optimalUtilizationRate: EngineFlags.KEEP_CURRENT,
        baseVariableBorrowRate: EngineFlags.KEEP_CURRENT,
        variableRateSlope1: _bpsToRay(9_00),
        variableRateSlope2: EngineFlags.KEEP_CURRENT,
        stableRateSlope1: EngineFlags.KEEP_CURRENT,
        stableRateSlope2: EngineFlags.KEEP_CURRENT
      })
    });
    rateStrategies[2] = IAaveV2ConfigEngine.RateStrategyUpdate({
      asset: AaveV2EthereumAssets.USDC_UNDERLYING,
      params: IV2RateStrategyFactory.RateStrategyParams({
        optimalUtilizationRate: EngineFlags.KEEP_CURRENT,
        baseVariableBorrowRate: EngineFlags.KEEP_CURRENT,
        variableRateSlope1: _bpsToRay(9_00),
        variableRateSlope2: EngineFlags.KEEP_CURRENT,
        stableRateSlope1: EngineFlags.KEEP_CURRENT,
        stableRateSlope2: EngineFlags.KEEP_CURRENT
      })
    });

    return rateStrategies;
  }
}