feat: Add StakeTokenDataProvider contract for StkAave 1.5 (#30)

* feat: Add StakeUiHelper for stakedToken v1.5

* fix: Refactor StakedTokenDataProvider

* fix: Add logic for upgraded StkBPT

* feat: Add new variable for redeemable amount

* feat: Add new variable for total redeeamble amount

Author: miguelmtzinf

contracts/interfaces/AggregatedStakedAaveV3.sol

@@ -0,0 +1,275 @@
+pragma solidity 0.7.5;
+pragma abicoder v2;
+
+interface AggregatedStakedAaveV3 {
+  event Approval(address indexed owner, address indexed spender, uint256 value);
+  event AssetConfigUpdated(address indexed asset, uint256 emission);
+  event AssetIndexUpdated(address indexed asset, uint256 index);
+  event Cooldown(address indexed user, uint256 amount);
+  event CooldownSecondsChanged(uint256 cooldownSeconds);
+  event DelegateChanged(address indexed delegator, address indexed delegatee, uint8 delegationType);
+  event DelegatedPowerChanged(address indexed user, uint256 amount, uint8 delegationType);
+  event ExchangeRateChanged(uint216 exchangeRate);
+  event FundsReturned(uint256 amount);
+  event GHODebtTokenChanged(address indexed newDebtToken);
+  event MaxSlashablePercentageChanged(uint256 newPercentage);
+  event PendingAdminChanged(address indexed newPendingAdmin, uint256 role);
+  event Redeem(address indexed from, address indexed to, uint256 assets, uint256 shares);
+  event RewardsAccrued(address user, uint256 amount);
+  event RewardsClaimed(address indexed from, address indexed to, uint256 amount);
+  event RoleClaimed(address indexed newAdmin, uint256 role);
+  event Slashed(address indexed destination, uint256 amount);
+  event SlashingExitWindowDurationChanged(uint256 windowSeconds);
+  event SlashingSettled();
+  event Staked(address indexed from, address indexed to, uint256 assets, uint256 shares);
+  event Transfer(address indexed from, address indexed to, uint256 value);
+  event UserIndexUpdated(address indexed user, address indexed asset, uint256 index);
+
+  struct AssetConfigInput {
+    uint128 emissionPerSecond;
+    uint256 totalStaked;
+    address underlyingAsset;
+  }
+
+  function CLAIM_HELPER_ROLE() external view returns (uint256);
+
+  function COOLDOWN_ADMIN_ROLE() external view returns (uint256);
+
+  function COOLDOWN_SECONDS() external view returns (uint256);
+
+  function DELEGATE_BY_TYPE_TYPEHASH() external view returns (bytes32);
+
+  function DELEGATE_TYPEHASH() external view returns (bytes32);
+
+  function DISTRIBUTION_END() external view returns (uint256);
+
+  function DOMAIN_SEPARATOR() external view returns (bytes32);
+
+  function EIP712_REVISION() external view returns (bytes memory);
+
+  function EMISSION_MANAGER() external view returns (address);
+
+  function EXCHANGE_RATE_UNIT() external view returns (uint256);
+
+  function INITIAL_EXCHANGE_RATE() external view returns (uint216);
+
+  function LOWER_BOUND() external view returns (uint256);
+
+  function PERMIT_TYPEHASH() external view returns (bytes32);
+
+  function PRECISION() external view returns (uint8);
+
+  function REVISION() external pure returns (uint256);
+
+  function REWARDS_VAULT() external view returns (address);
+
+  function REWARD_TOKEN() external view returns (address);
+
+  function SLASH_ADMIN_ROLE() external view returns (uint256);
+
+  function STAKED_TOKEN() external view returns (address);
+
+  function UNSTAKE_WINDOW() external view returns (uint256);
+
+  function _aaveGovernance() external view returns (address);
+
+  function _exchangeRateSnapshots(uint256)
+    external
+    view
+    returns (uint40 blockNumber, uint216 value);
+
+  function _nonces(address) external view returns (uint256);
+
+  function _votingSnapshots(address, uint256)
+    external
+    view
+    returns (uint128 blockNumber, uint128 value);
+
+  function _votingSnapshotsCounts(address) external view returns (uint256);
+
+  function allowance(address owner, address spender) external view returns (uint256);
+
+  function approve(address spender, uint256 amount) external returns (bool);
+
+  struct AssetData {
+    uint128 emissionPerSecond;
+    uint128 lastUpdateTimestamp;
+    uint256 index;
+  }
+
+  function assets(address) external view returns (AssetData memory);
+
+  function balanceOf(address account) external view returns (uint256);
+
+  function claimRewards(address to, uint256 amount) external;
+
+  function claimRewardsAndRedeem(
+    address to,
+    uint256 claimAmount,
+    uint256 redeemAmount
+  ) external;
+
+  function claimRewardsAndRedeemOnBehalf(
+    address from,
+    address to,
+    uint256 claimAmount,
+    uint256 redeemAmount
+  ) external;
+
+  function claimRewardsAndStake(address to, uint256 amount) external returns (uint256);
+
+  function claimRewardsAndStakeOnBehalf(
+    address from,
+    address to,
+    uint256 amount
+  ) external returns (uint256);
+
+  function claimRewardsOnBehalf(
+    address from,
+    address to,
+    uint256 amount
+  ) external returns (uint256);
+
+  function claimRoleAdmin(uint256 role) external;
+
+  function configureAssets(AssetConfigInput[] memory assetsConfigInput) external;
+
+  function cooldown() external;
+
+  function cooldownOnBehalfOf(address from) external;
+
+  function decimals() external view returns (uint8);
+
+  function decreaseAllowance(address spender, uint256 subtractedValue) external returns (bool);
+
+  function delegate(address delegatee) external;
+
+  function delegateBySig(
+    address delegatee,
+    uint256 nonce,
+    uint256 expiry,
+    uint8 v,
+    bytes32 r,
+    bytes32 s
+  ) external;
+
+  function delegateByType(address delegatee, uint8 delegationType) external;
+
+  function delegateByTypeBySig(
+    address delegatee,
+    uint8 delegationType,
+    uint256 nonce,
+    uint256 expiry,
+    uint8 v,
+    bytes32 r,
+    bytes32 s
+  ) external;
+
+  function getAdmin(uint256 role) external view returns (address);
+
+  function getCooldownSeconds() external view returns (uint256);
+
+  function getDelegateeByType(address delegator, uint8 delegationType)
+    external
+    view
+    returns (address);
+
+  function getExchangeRate() external view returns (uint216);
+
+  function getMaxSlashablePercentage() external view returns (uint256);
+
+  function getPendingAdmin(uint256 role) external view returns (address);
+
+  function getPowerAtBlock(
+    address user,
+    uint256 blockNumber,
+    uint8 delegationType
+  ) external view returns (uint256);
+
+  function getPowerCurrent(address user, uint8 delegationType) external view returns (uint256);
+
+  function getTotalRewardsBalance(address staker) external view returns (uint256);
+
+  function getUserAssetData(address user, address asset) external view returns (uint256);
+
+  function ghoDebtToken() external view returns (address);
+
+  function inPostSlashingPeriod() external view returns (bool);
+
+  function increaseAllowance(address spender, uint256 addedValue) external returns (bool);
+
+  function initialize(
+    address slashingAdmin,
+    address cooldownPauseAdmin,
+    address claimHelper,
+    uint256 maxSlashablePercentage,
+    uint256 cooldownSeconds
+  ) external;
+
+  function name() external view returns (string memory);
+
+  function permit(
+    address owner,
+    address spender,
+    uint256 value,
+    uint256 deadline,
+    uint8 v,
+    bytes32 r,
+    bytes32 s
+  ) external;
+
+  function previewRedeem(uint256 shares) external view returns (uint256);
+
+  function previewStake(uint256 assets) external view returns (uint256);
+
+  function redeem(address to, uint256 amount) external;
+
+  function redeemOnBehalf(
+    address from,
+    address to,
+    uint256 amount
+  ) external;
+
+  function returnFunds(uint256 amount) external;
+
+  function setCooldownSeconds(uint256 cooldownSeconds) external;
+
+  function setGHODebtToken(address newGHODebtToken) external;
+
+  function setMaxSlashablePercentage(uint256 percentage) external;
+
+  function setPendingAdmin(uint256 role, address newPendingAdmin) external;
+
+  function settleSlashing() external;
+
+  function slash(address destination, uint256 amount) external returns (uint256);
+
+  function stake(address to, uint256 amount) external;
+
+  function stakeWithPermit(
+    address from,
+    uint256 amount,
+    uint256 deadline,
+    uint8 v,
+    bytes32 r,
+    bytes32 s
+  ) external;
+
+  function stakerRewardsToClaim(address) external view returns (uint256);
+
+  function stakersCooldowns(address) external view returns (uint40 timestamp, uint216 amount);
+
+  function symbol() external view returns (string memory);
+
+  function totalSupply() external view returns (uint256);
+
+  function totalSupplyAt(uint256) external view returns (uint256);
+
+  function transfer(address to, uint256 amount) external returns (bool);
+
+  function transferFrom(
+    address from,
+    address to,
+    uint256 amount
+  ) external returns (bool);
+}