48 lines
1.6 KiB
Solidity
48 lines
1.6 KiB
Solidity
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// SPDX-License-Identifier: GPL-3.0-or-later
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pragma solidity ^0.8.0;
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contract voting {
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struct Voter {
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bool hasVoted;
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bool exists;
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}
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struct Option {
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uint voteCount;
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bool exists;
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}
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mapping(string => Option) public options;
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mapping(address => Voter) public voters;
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constructor() public {
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options["nft"] = Option(0, true);
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options["token"] = Option(0, true);
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options["dao"] = Option(0, true);
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voters[0x5B38Da6a701c568545dCfcB03FcB875f56beddC4] = Voter(false, true); // repeat for all voters
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}
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function vote(string memory _option) public {
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require(voters[msg.sender].exists = true);
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require(voters[msg.sender].hasVoted = false);
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require(options[_option].exists = true);
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options[_option].voteCount = options[_option].voteCount + 1;
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voters[msg.sender].hasVoted = true;
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}
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function getVoteCount(string memory _option) private view returns (uint) {
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return options[_option].voteCount;
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}
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function determineWinner() public view returns (string memory){
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if (getVoteCount("nft") > getVoteCount("token") && getVoteCount("nft") > getVoteCount("dao")) {
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return "nft";
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} else if (getVoteCount("token") > getVoteCount("nft") && getVoteCount("token") > getVoteCount("dao")) {
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return "token";
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} else if (getVoteCount("dao") > getVoteCount("nft") && getVoteCount("dao") > getVoteCount("token")) {
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return "dao";
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}
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else return "manual tiebreaker required";
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}
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}
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