// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.13;

contract Voting{

    struct Vote_state {
        bool voted;
    }
    
    mapping(address => bool) private Voters;
    uint256 nft = 0;
    uint256 dao = 0;
    uint256 token = 0; 

    constructor() {
      Voters[0x5B38Da6a701c568545dCfcB03FcB875f56beddC4] = false;
    }

    function vote(uint256 option) external returns (bool) {
        require(Voters[msg.sender] == false, "Already voted or non-existent.");
        if (option == 1) {
            Voters[msg.sender] = true;
            nft = nft + 1;
            return true;
        }
        if (option == 2) {
            Voters[msg.sender] = true;
            dao = dao + 1;
            return true;
        }
        if (option == 3) {
            Voters[msg.sender] = true;
            token = token + 1;
            return true;
        }
        return false;
    }

    function result() external view returns (string memory){
        if (nft > dao && nft > token) {
                return "nft";}
        else if (dao > nft && dao > token){
                return "dao";}
        else if (token > nft && token > dao){
                return "token";}
        return "couldnt decide";
    }
}