// File: contracts/misc/StaticPriceOracle.sol



// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.4;

import '../interfaces/ILendingRateOracle.sol';
import '../access/MarketAccessBitmask.sol';
import '../access/AccessFlags.sol';
import '../access/interfaces/IMarketAccessController.sol';
import '../interfaces/IPriceOracleGetter.sol';

contract StaticPriceOracle is MarketAccessBitmask, IPriceOracleGetter {
  mapping(address => uint256) private prices;

  address public constant ETH = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;

  constructor(
    IMarketAccessController remoteAcl,
    address[] memory assets_,
    uint256[] memory prices_
  ) MarketAccessBitmask(remoteAcl) {
    require(assets_.length == prices_.length, 'length mismatch');
    for (uint256 i = 0; i < assets_.length; i++) {
      prices[assets_[i]] = prices_[i];
    }
  }

  function getAssetPrice(address asset) public view override returns (uint256) {
    uint256 price = prices[asset];
    require(price != 0, 'unknown asset');
    return price;
  }

  function _setAssetPrice(address asset, uint256 price) private {
    require(asset != address(0));
    prices[asset] = price;
    if (asset == ETH) {
      emit EthPriceUpdated(price, block.timestamp);
    } else {
      emit AssetPriceUpdated(asset, price, block.timestamp);
    }
  }

  function setAssetPrice(address asset, uint256 price) external aclHas(AccessFlags.ORACLE_ADMIN) {
    _setAssetPrice(asset, price);
  }

  function setAssetPrices(address[] calldata assets_, uint256[] calldata prices_)
    external
    aclHas(AccessFlags.ORACLE_ADMIN)
  {
    require(assets_.length == prices_.length, 'length mismatch');
    for (uint256 i = 0; i < assets_.length; i++) {
      _setAssetPrice(assets_[i], prices_[i]);
    }
  }
}

// File: contracts/interfaces/ILendingRateOracle.sol



// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.4;

/// @dev Provides the average market borrow rate to be used as a base for the stable borrow rate calculations
interface ILendingRateOracle {
  /// @dev returns the market borrow rate in ray
  function getMarketBorrowRate(address asset) external view returns (uint256);
}

// File: contracts/access/MarketAccessBitmask.sol



// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.4;

import '../tools/Errors.sol';
import './interfaces/IMarketAccessController.sol';
import './AccessHelper.sol';
import './AccessFlags.sol';

// solhint-disable func-name-mixedcase
abstract contract MarketAccessBitmaskMin {
  using AccessHelper for IMarketAccessController;
  IMarketAccessController internal _remoteAcl;

  constructor(IMarketAccessController remoteAcl) {
    _remoteAcl = remoteAcl;
  }

  function _getRemoteAcl(address addr) internal view returns (uint256) {
    return _remoteAcl.getAcl(addr);
  }

  function hasRemoteAcl() internal view returns (bool) {
    return _remoteAcl != IMarketAccessController(address(0));
  }

  function acl_hasAnyOf(address subject, uint256 flags) internal view returns (bool) {
    return _remoteAcl.hasAnyOf(subject, flags);
  }

  modifier aclHas(uint256 flags) virtual {
    _remoteAcl.requireAnyOf(msg.sender, flags, Errors.TXT_ACCESS_RESTRICTED);
    _;
  }

  modifier aclAnyOf(uint256 flags) {
    _remoteAcl.requireAnyOf(msg.sender, flags, Errors.TXT_ACCESS_RESTRICTED);
    _;
  }

  modifier onlyPoolAdmin() {
    _remoteAcl.requireAnyOf(msg.sender, AccessFlags.POOL_ADMIN, Errors.CALLER_NOT_POOL_ADMIN);
    _;
  }

  modifier onlyRewardAdmin() {
    _remoteAcl.requireAnyOf(msg.sender, AccessFlags.REWARD_CONFIG_ADMIN, Errors.CALLER_NOT_REWARD_CONFIG_ADMIN);
    _;
  }

  modifier onlyRewardConfiguratorOrAdmin() {
    _remoteAcl.requireAnyOf(
      msg.sender,
      AccessFlags.REWARD_CONFIG_ADMIN | AccessFlags.REWARD_CONFIGURATOR,
      Errors.CALLER_NOT_REWARD_CONFIG_ADMIN
    );
    _;
  }
}

abstract contract MarketAccessBitmask is MarketAccessBitmaskMin {
  using AccessHelper for IMarketAccessController;

  constructor(IMarketAccessController remoteAcl) MarketAccessBitmaskMin(remoteAcl) {}

  modifier onlyEmergencyAdmin() {
    _remoteAcl.requireAnyOf(msg.sender, AccessFlags.EMERGENCY_ADMIN, Errors.CALLER_NOT_EMERGENCY_ADMIN);
    _;
  }

  function _onlySweepAdmin() internal view virtual {
    _remoteAcl.requireAnyOf(msg.sender, AccessFlags.SWEEP_ADMIN, Errors.CALLER_NOT_SWEEP_ADMIN);
  }

  modifier onlySweepAdmin() {
    _onlySweepAdmin();
    _;
  }
}

// File: contracts/access/AccessFlags.sol



// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.4;

library AccessFlags {
  // roles that can be assigned to multiple addresses - use range [0..15]
  uint256 public constant EMERGENCY_ADMIN = 1 << 0;
  uint256 public constant POOL_ADMIN = 1 << 1;
  uint256 public constant TREASURY_ADMIN = 1 << 2;
  uint256 public constant REWARD_CONFIG_ADMIN = 1 << 3;
  uint256 public constant REWARD_RATE_ADMIN = 1 << 4;
  uint256 public constant STAKE_ADMIN = 1 << 5;
  uint256 public constant REFERRAL_ADMIN = 1 << 6;
  uint256 public constant LENDING_RATE_ADMIN = 1 << 7;
  uint256 public constant SWEEP_ADMIN = 1 << 8;
  uint256 public constant ORACLE_ADMIN = 1 << 9;

  uint256 public constant ROLES = (uint256(1) << 16) - 1;

  // singletons - use range [16..64] - can ONLY be assigned to a single address
  uint256 public constant SINGLETONS = ((uint256(1) << 64) - 1) & ~ROLES;

  // proxied singletons
  uint256 public constant LENDING_POOL = 1 << 16;
  uint256 public constant LENDING_POOL_CONFIGURATOR = 1 << 17;
  uint256 public constant LIQUIDITY_CONTROLLER = 1 << 18;
  uint256 public constant TREASURY = 1 << 19;
  uint256 public constant REWARD_TOKEN = 1 << 20;
  uint256 public constant REWARD_STAKE_TOKEN = 1 << 21;
  uint256 public constant REWARD_CONTROLLER = 1 << 22;
  uint256 public constant REWARD_CONFIGURATOR = 1 << 23;
  uint256 public constant STAKE_CONFIGURATOR = 1 << 24;
  uint256 public constant REFERRAL_REGISTRY = 1 << 25;

  uint256 public constant PROXIES = ((uint256(1) << 26) - 1) & ~ROLES;

  // non-proxied singletons, numbered down from 31 (as JS has problems with bitmasks over 31 bits)
  uint256 public constant WETH_GATEWAY = 1 << 27;
  uint256 public constant DATA_HELPER = 1 << 28;
  uint256 public constant PRICE_ORACLE = 1 << 29;
  uint256 public constant LENDING_RATE_ORACLE = 1 << 30;

  // any other roles - use range [64..]
  // these roles can be assigned to multiple addresses

  uint256 public constant TRUSTED_FLASHLOAN = 1 << 66;
}

// File: contracts/access/interfaces/IMarketAccessController.sol



// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.4;

import './IAccessController.sol';

/// @dev Main registry of addresses part of or connected to the protocol, including permissioned roles. Also acts a proxy factory.
interface IMarketAccessController is IAccessController {
  function getMarketId() external view returns (string memory);

  function getLendingPool() external view returns (address);

  function getPriceOracle() external view returns (address);

  function getLendingRateOracle() external view returns (address);
}

// File: contracts/interfaces/IPriceOracleGetter.sol



// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.4;

enum SourceType {
  AggregatorOrStatic,
  UniswapV2Pair
}

interface IPriceOracleEvents {
  event AssetPriceUpdated(address asset, uint256 price, uint256 timestamp);
  event EthPriceUpdated(uint256 price, uint256 timestamp);
  event DerivedAssetSourceUpdated(
    address indexed asset,
    uint256 index,
    address indexed underlyingSource,
    uint256 underlyingPrice,
    uint256 timestamp,
    SourceType sourceType
  );
}

/// @dev Interface for a price oracle.
interface IPriceOracleGetter is IPriceOracleEvents {
  /// @dev returns the asset price in ETH
  function getAssetPrice(address asset) external view returns (uint256);
}

// File: contracts/tools/Errors.sol



// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.4;

/**
 * @title Errors library
 * @notice Defines the error messages emitted by the different contracts
 * @dev Error messages prefix glossary:
 *  - VL = ValidationLogic
 *  - MATH = Math libraries
 *  - CT = Common errors between tokens (DepositToken, VariableDebtToken and StableDebtToken)
 *  - AT = DepositToken
 *  - SDT = StableDebtToken
 *  - VDT = VariableDebtToken
 *  - LP = LendingPool
 *  - LPAPR = AddressesProviderRegistry
 *  - LPC = LendingPoolConfiguration
 *  - RL = ReserveLogic
 *  - LPCM = LendingPoolExtension
 *  - ST = Stake
 */
library Errors {
  //contract specific errors
  string public constant VL_INVALID_AMOUNT = '1'; // Amount must be greater than 0
  string public constant VL_NO_ACTIVE_RESERVE = '2'; // Action requires an active reserve
  string public constant VL_RESERVE_FROZEN = '3'; // Action cannot be performed because the reserve is frozen
  string public constant VL_UNKNOWN_RESERVE = '4'; // Action requires an active reserve
  string public constant VL_NOT_ENOUGH_AVAILABLE_USER_BALANCE = '5'; // User cannot withdraw more than the available balance (above min limit)
  string public constant VL_TRANSFER_NOT_ALLOWED = '6'; // Transfer cannot be allowed.
  string public constant VL_BORROWING_NOT_ENABLED = '7'; // Borrowing is not enabled
  string public constant VL_INVALID_INTEREST_RATE_MODE_SELECTED = '8'; // Invalid interest rate mode selected
  string public constant VL_COLLATERAL_BALANCE_IS_0 = '9'; // The collateral balance is 0
  string public constant VL_HEALTH_FACTOR_LOWER_THAN_LIQUIDATION_THRESHOLD = '10'; // Health factor is lesser than the liquidation threshold
  string public constant VL_COLLATERAL_CANNOT_COVER_NEW_BORROW = '11'; // There is not enough collateral to cover a new borrow
  string public constant VL_STABLE_BORROWING_NOT_ENABLED = '12'; // stable borrowing not enabled
  string public constant VL_COLLATERAL_SAME_AS_BORROWING_CURRENCY = '13'; // collateral is (mostly) the same currency that is being borrowed
  string public constant VL_AMOUNT_BIGGER_THAN_MAX_LOAN_SIZE_STABLE = '14'; // The requested amount is exceeds max size of a stable loan
  string public constant VL_NO_DEBT_OF_SELECTED_TYPE = '15'; // to repay a debt, user needs to specify a correct debt type (variable or stable)
  string public constant VL_NO_EXPLICIT_AMOUNT_TO_REPAY_ON_BEHALF = '16'; // To repay on behalf of an user an explicit amount to repay is needed
  string public constant VL_NO_STABLE_RATE_LOAN_IN_RESERVE = '17'; // User does not have a stable rate loan in progress on this reserve
  string public constant VL_NO_VARIABLE_RATE_LOAN_IN_RESERVE = '18'; // User does not have a variable rate loan in progress on this reserve
  string public constant VL_UNDERLYING_BALANCE_NOT_GREATER_THAN_0 = '19'; // The collateral balance needs to be greater than 0
  string public constant VL_DEPOSIT_ALREADY_IN_USE = '20'; // User deposit is already being used as collateral
  string public constant VL_RESERVE_MUST_BE_COLLATERAL = '21'; // This reserve must be enabled as collateral
  string public constant LP_INTEREST_RATE_REBALANCE_CONDITIONS_NOT_MET = '22'; // Interest rate rebalance conditions were not met
  string public constant AT_OVERDRAFT_DISABLED = '23'; // User doesn't accept allocation of overdraft
  string public constant VL_INVALID_SUB_BALANCE_ARGS = '24';
  string public constant AT_INVALID_SLASH_DESTINATION = '25';

  string public constant LP_CALLER_NOT_LENDING_POOL_CONFIGURATOR = '27'; // The caller of the function is not the lending pool configurator

  string public constant LENDING_POOL_REQUIRED = '28'; // The caller of this function must be a lending pool
  string public constant CALLER_NOT_LENDING_POOL = '29'; // The caller of this function must be a lending pool
  string public constant AT_SUB_BALANCE_RESTIRCTED_FUNCTION = '30'; // The caller of this function must be a lending pool or a sub-balance operator

  string public constant RL_RESERVE_ALREADY_INITIALIZED = '32'; // Reserve has already been initialized
  string public constant CALLER_NOT_POOL_ADMIN = '33'; // The caller must be the pool admin
  string public constant LPC_RESERVE_LIQUIDITY_NOT_0 = '34'; // The liquidity of the reserve needs to be 0

  string public constant LPAPR_PROVIDER_NOT_REGISTERED = '41'; // Provider is not registered
  string public constant LPCM_HEALTH_FACTOR_NOT_BELOW_THRESHOLD = '42'; // Health factor is not below the threshold
  string public constant LPCM_COLLATERAL_CANNOT_BE_LIQUIDATED = '43'; // The collateral chosen cannot be liquidated
  string public constant LPCM_SPECIFIED_CURRENCY_NOT_BORROWED_BY_USER = '44'; // User did not borrow the specified currency
  string public constant LPCM_NOT_ENOUGH_LIQUIDITY_TO_LIQUIDATE = '45'; // There isn't enough liquidity available to liquidate

  string public constant MATH_MULTIPLICATION_OVERFLOW = '48';
  string public constant MATH_ADDITION_OVERFLOW = '49';
  string public constant MATH_DIVISION_BY_ZERO = '50';
  string public constant RL_LIQUIDITY_INDEX_OVERFLOW = '51'; //  Liquidity index overflows uint128
  string public constant RL_VARIABLE_BORROW_INDEX_OVERFLOW = '52'; //  Variable borrow index overflows uint128
  string public constant RL_LIQUIDITY_RATE_OVERFLOW = '53'; //  Liquidity rate overflows uint128
  string public constant RL_VARIABLE_BORROW_RATE_OVERFLOW = '54'; //  Variable borrow rate overflows uint128
  string public constant RL_STABLE_BORROW_RATE_OVERFLOW = '55'; //  Stable borrow rate overflows uint128
  string public constant CT_INVALID_MINT_AMOUNT = '56'; //invalid amount to mint
  string public constant CALLER_NOT_STAKE_ADMIN = '57';
  string public constant CT_INVALID_BURN_AMOUNT = '58'; //invalid amount to burn
  string public constant BORROW_ALLOWANCE_NOT_ENOUGH = '59'; // User borrows on behalf, but allowance are too small
  string public constant CALLER_NOT_LIQUIDITY_CONTROLLER = '60';
  string public constant CALLER_NOT_REF_ADMIN = '61';
  string public constant VL_INSUFFICIENT_REWARD_AVAILABLE = '62';
  string public constant LP_CALLER_MUST_BE_DEPOSIT_TOKEN = '63';
  string public constant LP_IS_PAUSED = '64'; // Pool is paused
  string public constant LP_NO_MORE_RESERVES_ALLOWED = '65';
  string public constant LP_INVALID_FLASH_LOAN_EXECUTOR_RETURN = '66';
  string public constant RC_INVALID_LTV = '67';
  string public constant RC_INVALID_LIQ_THRESHOLD = '68';
  string public constant RC_INVALID_LIQ_BONUS = '69';
  string public constant RC_INVALID_DECIMALS = '70';
  string public constant RC_INVALID_RESERVE_FACTOR = '71';
  string public constant LPAPR_INVALID_ADDRESSES_PROVIDER_ID = '72';
  string public constant VL_INCONSISTENT_FLASHLOAN_PARAMS = '73';
  string public constant VL_TREASURY_REQUIRED = '74';
  string public constant LPC_INVALID_CONFIGURATION = '75'; // Invalid risk parameters for the reserve
  string public constant CALLER_NOT_EMERGENCY_ADMIN = '76'; // The caller must be the emergency admin
  string public constant UL_INVALID_INDEX = '77';
  string public constant VL_CONTRACT_REQUIRED = '78';
  string public constant SDT_STABLE_DEBT_OVERFLOW = '79';
  string public constant SDT_BURN_EXCEEDS_BALANCE = '80';
  string public constant CALLER_NOT_REWARD_CONFIG_ADMIN = '81'; // The caller of this function must be a reward admin
  string public constant LP_INVALID_PERCENTAGE = '82'; // Percentage can't be more than 100%
  string public constant LP_IS_NOT_TRUSTED_FLASHLOAN = '83';
  string public constant CALLER_NOT_SWEEP_ADMIN = '84';
  string public constant LP_TOO_MANY_NESTED_CALLS = '85';
  string public constant LP_RESTRICTED_FEATURE = '86';
  string public constant LP_TOO_MANY_FLASHLOAN_CALLS = '87';
  string public constant RW_BASELINE_EXCEEDED = '88';
  string public constant CALLER_NOT_REWARD_RATE_ADMIN = '89';
  string public constant CALLER_NOT_REWARD_CONTROLLER = '90';
  string public constant RW_REWARD_PAUSED = '91';
  string public constant CALLER_NOT_TEAM_MANAGER = '92';
  string public constant STK_REDEEM_PAUSED = '93';
  string public constant STK_INSUFFICIENT_COOLDOWN = '94';
  string public constant STK_UNSTAKE_WINDOW_FINISHED = '95';
  string public constant STK_INVALID_BALANCE_ON_COOLDOWN = '96';
  string public constant STK_EXCESSIVE_SLASH_PCT = '97';
  string public constant STK_WRONG_COOLDOWN_OR_UNSTAKE = '98';
  string public constant STK_PAUSED = '99';

  string public constant TXT_OWNABLE_CALLER_NOT_OWNER = 'Ownable: caller is not the owner';
  string public constant TXT_CALLER_NOT_PROXY_OWNER = 'ProxyOwner: caller is not the owner';
  string public constant TXT_ACCESS_RESTRICTED = 'RESTRICTED';
}

// File: contracts/access/AccessHelper.sol



// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.4;

import './interfaces/IRemoteAccessBitmask.sol';

/// @dev Helper/wrapper around IRemoteAccessBitmask
library AccessHelper {
  function getAcl(IRemoteAccessBitmask remote, address subject) internal view returns (uint256) {
    return remote.queryAccessControlMask(subject, ~uint256(0));
  }

  function queryAcl(
    IRemoteAccessBitmask remote,
    address subject,
    uint256 filterMask
  ) internal view returns (uint256) {
    return remote.queryAccessControlMask(subject, filterMask);
  }

  function hasAnyOf(
    IRemoteAccessBitmask remote,
    address subject,
    uint256 flags
  ) internal view returns (bool) {
    uint256 found = queryAcl(remote, subject, flags);
    return found & flags != 0;
  }

  function hasAny(IRemoteAccessBitmask remote, address subject) internal view returns (bool) {
    return remote.queryAccessControlMask(subject, 0) != 0;
  }

  function hasNone(IRemoteAccessBitmask remote, address subject) internal view returns (bool) {
    return remote.queryAccessControlMask(subject, 0) == 0;
  }

  function requireAnyOf(
    IRemoteAccessBitmask remote,
    address subject,
    uint256 flags,
    string memory text
  ) internal view {
    require(hasAnyOf(remote, subject, flags), text);
  }
}

// File: contracts/access/interfaces/IAccessController.sol



// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.4;

import './IRemoteAccessBitmask.sol';
import '../../tools/upgradeability/IProxy.sol';

/// @dev Main registry of permissions and addresses
interface IAccessController is IRemoteAccessBitmask {
  function getAddress(uint256 id) external view returns (address);

  function createProxy(
    address admin,
    address impl,
    bytes calldata params
  ) external returns (IProxy);
}

// File: contracts/access/interfaces/IRemoteAccessBitmask.sol



// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.4;

interface IRemoteAccessBitmask {
  /**
   * @dev Returns access flags granted to the given address and limited by the filterMask. filterMask == 0 has a special meaning.
   * @param addr an to get access perfmissions for
   * @param filterMask limits a subset of flags to be checked.
   * NB! When filterMask == 0 then zero is returned no flags granted, or an unspecified non-zero value otherwise.
   * @return Access flags currently granted
   */
  function queryAccessControlMask(address addr, uint256 filterMask) external view returns (uint256);
}

// File: contracts/tools/upgradeability/IProxy.sol



// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.4;

interface IProxy {
  function upgradeToAndCall(address newImplementation, bytes calldata data) external payable;
}