FourYearVestingStorage.sol

pragma solidity ^0.5.17;

import "../../../openzeppelin/Ownable.sol";
import "../../../interfaces/IERC20.sol";
import "../../Staking/interfaces/IStaking.sol";
import "../../IFeeSharingCollector.sol";

/**
 * @title Four Year Vesting Storage Contract.
 *
 * @notice This contract is just the storage required for four year vesting.
 * It is parent of FourYearVestingLogic and FourYearVesting.
 *
 * @dev Use Ownable as a parent to align storage structure for Logic and Proxy contracts.
 * */
contract FourYearVestingStorage is Ownable {
    /// @notice The SOV token contract.
    IERC20 public SOV;

    /// @notice The staking contract address.
    IStaking public staking;

    /// @notice The owner of the vested tokens.
    address public tokenOwner;

    /// @notice Fee sharing Proxy.
    IFeeSharingCollector public feeSharingCollector;

    // Used lower case for cliff and duration to maintain consistency with normal vesting
    /// @notice The cliff. After this time period the tokens begin to unlock.
    uint256 public constant cliff = 4 weeks;

    /// @notice The duration. After this period all tokens will have been unlocked.
    uint256 public constant duration = 156 weeks;

    /// @notice The start date of the vesting.
    uint256 public startDate;

    /// @notice The end date of the vesting.
    uint256 public endDate;

    /// @notice Constant used for computing the vesting dates.
    uint256 public constant FOUR_WEEKS = 4 weeks;

    /// @notice Maximum interval to stake tokens at one go
    uint256 public maxInterval;

    /// @notice End of previous staking schedule.
    uint256 public lastStakingSchedule;

    /// @notice Amount of shares left to be staked.
    uint256 public remainingStakeAmount;

    /// @notice Durations left.
    uint256 public durationLeft;

    /// @notice Cliffs added.
    uint256 public cliffAdded;

    /// @notice Address of new token owner.
    address public newTokenOwner;

    /// @notice Address of new implementation.
    address public newImplementation;

    /// @notice Duration(from start) till the time unlocked tokens are extended(for 3 years)
    uint256 public extendDurationFor;

    /// @dev Please add new state variables below this line. Mark them internal and
    /// add a getter function while upgrading the contracts.
}