Governor Contract

• The page contains the documentation for the Governor contract that can be used to achieve on chain governance.
• This contract can be used to create proposals and vote on them. The result of the voting can be used to verify the claim of the policy holder.

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/governance/Governor.sol";
import "@openzeppelin/contracts/governance/extensions/GovernorCountingSimple.sol";
import "@openzeppelin/contracts/governance/extensions/GovernorVotes.sol";
import "@openzeppelin/contracts/governance/extensions/GovernorVotesQuorumFraction.sol";
import "@openzeppelin/contracts/governance/extensions/GovernorTimelockControl.sol";
import "@openzeppelin/contracts/governance/extensions/GovernorSettings.sol";

/**
@dev GovernorContract
note This is the governor contract template to use if the claim is to be verified using onchain
DAO strategy
*/
contract GovernorContract is
    Governor,
    GovernorSettings,
    GovernorCountingSimple,
    GovernorVotes,
    GovernorVotesQuorumFraction,
    GovernorTimelockControl
{
    /**
    @dev constructor
    @param _token is the Governance Token to be used
    @param _timelock is the Timelock contract to be used
    @param _votingPeriod is the period for which voting will be active
    @param _votingDelay is the delay before the voting starts
    @param _proposalThreshold is the minimum number of votes required to pass a proposal
    */
    constructor(
        IVotes _token,
        TimelockController _timelock,
        uint256 _quorumPercentage,
        uint256 _votingPeriod,
        uint256 _votingDelay,
        uint256 _proposalThreshold
    )
        Governor("GovernorContract")
        GovernorSettings(
            _votingDelay /* 1 block */, // voting delay
            _votingPeriod, // 45818, /* 1 week */ // voting period
            _proposalThreshold
        )
        GovernorVotes(_token)
        GovernorVotesQuorumFraction(_quorumPercentage)
        GovernorTimelockControl(_timelock)
    {}

    function votingDelay() public view override(IGovernor, GovernorSettings) returns (uint256) {
        return super.votingDelay();
    }

    function votingPeriod() public view override(IGovernor, GovernorSettings) returns (uint256) {
        return super.votingPeriod();
    }

    // The following functions are overrides required by Solidity.

    function quorum(
        uint256 blockNumber
    ) public view override(IGovernor, GovernorVotesQuorumFraction) returns (uint256) {
        return super.quorum(blockNumber);
    }

    function getVotes(
        address account,
        uint256 blockNumber
    ) public view override(IGovernor, Governor) returns (uint256) {
        return super.getVotes(account, blockNumber);
    }

    function state(
        uint256 proposalId
    ) public view override(Governor, GovernorTimelockControl) returns (ProposalState) {
        return super.state(proposalId);
    }

    function propose(
        address[] memory targets,
        uint256[] memory values,
        bytes[] memory calldatas,
        string memory description
    ) public override(Governor, IGovernor) returns (uint256) {
        return super.propose(targets, values, calldatas, description);
    }

    function proposalThreshold()
        public
        view
        override(Governor, GovernorSettings)
        returns (uint256)
    {
        return super.proposalThreshold();
    }

    function _execute(
        uint256 proposalId,
        address[] memory targets,
        uint256[] memory values,
        bytes[] memory calldatas,
        bytes32 descriptionHash
    ) internal override(Governor, GovernorTimelockControl) {
        super._execute(proposalId, targets, values, calldatas, descriptionHash);
    }

    function _cancel(
        address[] memory targets,
        uint256[] memory values,
        bytes[] memory calldatas,
        bytes32 descriptionHash
    ) internal override(Governor, GovernorTimelockControl) returns (uint256) {
        return super._cancel(targets, values, calldatas, descriptionHash);
    }

    function _executor()
        internal
        view
        override(Governor, GovernorTimelockControl)
        returns (address)
    {
        return super._executor();
    }

    function supportsInterface(
        bytes4 interfaceId
    ) public view override(Governor, GovernorTimelockControl) returns (bool) {
        return super.supportsInterface(interfaceId);
    }
}