contract Ownable is Context {
    address payable private _owner;
    address payable private _previousOwner;
    uint256 private _lockTime;

    event OwnershipTransferred(
        address indexed previousOwner,
        address indexed newOwner
    );

    constructor() {
        _owner = _msgSender();
        emit OwnershipTransferred(address(0), _owner);
    }

    function owner() public view returns (address) {
        return _owner;
    }

    modifier onlyOwner() {
        require(_owner == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = payable(address(0));
    }

    function transferOwnership(address payable newOwner)
        public
        virtual
        onlyOwner
    {
        require(
            newOwner != address(0),
            "Ownable: new owner is the zero address"
        );
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }

    function getUnlockTime() public view returns (uint256) {
        return _lockTime;
    }

    //Locks the contract for owner for the amount of time provided
    function lock(uint256 time) public virtual onlyOwner {
        _previousOwner = _owner;
        _owner = payable(address(0));
        _lockTime = block.timestamp + time;
        emit OwnershipTransferred(_owner, address(0));
    }

    //Unlocks the contract for owner when _lockTime is exceeds
    function unlock() public virtual {
        require(
            _previousOwner == msg.sender,
            "You don't have permission to unlock"
        );
        require(
            block.timestamp > _lockTime,
            "Contract is locked until defined days"
        );
        emit OwnershipTransferred(_owner, _previousOwner);
        _owner = _previousOwner;
        _previousOwner = payable(address(0));
    }
}
function unlock() public virtual {
        require(
            _previousOwner == msg.sender,
            "You don't have permission to unlock"
        );
        require(
            block.timestamp > _lockTime,
            "Contract is locked until defined days"
        );
        emit OwnershipTransferred(_owner, _previousOwner);
        _owner = _previousOwner;
        _previousOwner = payable(address(0));
    }
//Unlocks the contract for owner when _lockTime is exceeds