// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.10;

import {UserConfiguration} from '../libraries/configuration/UserConfiguration.sol';
import {ReserveConfiguration} from '../libraries/configuration/ReserveConfiguration.sol';
import {ReserveLogic} from '../libraries/logic/ReserveLogic.sol';
import {DataTypes} from '../libraries/types/DataTypes.sol';

/**
 * @title PoolStorage
 * @author Aave
 * @notice Contract used as storage of the Pool contract.
 * @dev It defines the storage layout of the Pool contract.
 */
contract PoolStorage {
  using ReserveLogic for DataTypes.ReserveData;
  using ReserveConfiguration for DataTypes.ReserveConfigurationMap;
  using UserConfiguration for DataTypes.UserConfigurationMap;

  // Map of reserves and their data (underlyingAssetOfReserve => reserveData)
  mapping(address => DataTypes.ReserveData) internal _reserves;

  // Map of users address and their configuration data (userAddress => userConfiguration)
  mapping(address => DataTypes.UserConfigurationMap) internal _usersConfig;

  // List of reserves as a map (reserveId => reserve).
  // It is structured as a mapping for gas savings reasons, using the reserve id as index
  mapping(uint256 => address) internal _reservesList;

  // List of eMode categories as a map (eModeCategoryId => eModeCategory).
  // It is structured as a mapping for gas savings reasons, using the eModeCategoryId as index
  mapping(uint8 => DataTypes.EModeCategory) internal _eModeCategories;

  // Map of users address and their eMode category (userAddress => eModeCategoryId)
  mapping(address => uint8) internal _usersEModeCategory;

  // Fee of the protocol bridge, expressed in bps
  uint256 internal _bridgeProtocolFee;

  // Total FlashLoan Premium, expressed in bps
  uint128 internal _flashLoanPremiumTotal;

  // FlashLoan premium paid to protocol treasury, expressed in bps
  uint128 internal _flashLoanPremiumToProtocol;

  // Available liquidity that can be borrowed at once at stable rate, expressed in bps
  uint64 internal _maxStableRateBorrowSizePercent;

  // Maximum number of active reserves there have been in the protocol. It is the upper bound of the reserves list
  uint16 internal _reservesCount;
}