HumanRewarder

humanRewarder.sol

pragma solidity 0.5.1;

contract HasVoted {
    mapping (address => bool) public voted;
}

interface IERC20 {
    function totalSupply() external view returns (uint256);
    function balanceOf(address account) external view returns (uint256);
    function transfer(address recipient, uint256 amount) external returns (bool);
    function allowance(address owner, address spender) external view returns (uint256);
}

contract HumanRewarder {
    
    HasVoted humanHasVoted;
    address public thatRichDude;
    IERC20 rewardToken;
    uint256 public startTime;
    mapping (address => bool) public claimed;
    
    constructor() public {
        humanHasVoted = HasVoted(0x43FCedE3571C10aCa1d3C12339bF01423b118e81);
        rewardToken = IERC20(0x89d24A6b4CcB1B6fAA2625fE562bDD9a23260359);
        thatRichDude = address(0x2566190503393b80bdEd55228C61A175f40E4D42);
    }
    
    modifier _hasVoted() {
        require(humanHasVoted.voted(msg.sender), "Tut tut! You didn't vote!");
        _;
    }
    
    function getPotBack() public {
        require(address(msg.sender) == thatRichDude, "Only Rich can withdraw the money");
        require(startTime + 7 days > now, "7 days need to have passed");
        rewardToken.transfer(address(msg.sender),  rewardToken.balanceOf(address(this)));
    }
    
    function grabReward() _hasVoted public {
        require(rewardToken.balanceOf(address(this)) >= 1 ether, "No funds in the reward contract");
        require(!claimed[msg.sender], "You already got your DOLLAH");
        rewardToken.transfer(address(msg.sender), 1 ether);
    }
    
    function remainingDai() view public returns(uint256){
        return rewardToken.balanceOf(address(this));
    }
}