erc721a DAO

TheGovernor.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import "@openzeppelin/contracts/governance/Governor.sol";
import "@openzeppelin/contracts/governance/extensions/GovernorSettings.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";

contract TheGovernor is Governor, GovernorSettings, GovernorCountingSimple, GovernorVotes, GovernorVotesQuorumFraction, GovernorTimelockControl {
    constructor(IVotes _token, TimelockController _timelock)
        Governor("The Governor")
        GovernorSettings(7200 /* 1 day */, 50400 /* 1 week */, 1000e18)
        GovernorVotes(_token)
        GovernorVotesQuorumFraction(4)
        GovernorTimelockControl(_timelock)
    {}

    // The following functions are overrides required by Solidity.

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

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

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

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

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

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

    function _queueOperations(uint256 proposalId, address[] memory targets, uint256[] memory values, bytes[] memory calldatas, bytes32 descriptionHash)
        internal
        override(Governor, GovernorTimelockControl)
        returns (uint48)
    {
        return super._queueOperations(proposalId, targets, values, calldatas, descriptionHash);
    }

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

TheTimelock.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import "@openzeppelin/contracts/governance/TimelockController.sol";

contract Timelock is TimelockController {

    constructor(
        uint256 minDelay,
        address[] memory proposers,
        address[] memory executors,
        address admin
    ) TimelockController(minDelay, proposers, executors, admin) {}
}

TheToken.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import "erc721a-governance-token/contracts/ERC721aGovernanceToken.sol";
import "@openzeppelin/[email protected]/access/Ownable.sol";

contract SampleERC721aGovernanceToken is ERC721aGovernanceToken, Ownable {
    uint16 private immutable MAX_SUPPLY = 10_000; // Replace with your collection's max supply
    uint16 private immutable MAX_MINT_PER_ADDRESS = 50; // Replace with your max mint per address value
    uint64 private immutable MINT_PRICE = 0.1 ether; // Replace with your mint price
    string private _baseTokenURI =  "ipfs://QmZcH4YvBVVRJtdn4RdbaqgspFU8gH6P9vomDpBVpAL3u4/"; // Replace with your base token URI followed by slash
    
    mapping(address => uint16) public addressMintedBalance;

    constructor(string memory name, string memory symbol, string memory version)
        ERC721aGovernanceToken(name, symbol, version)
    Ownable(msg.sender){}

    // Override for erc721a so that we can make our custom minting logic
    function mint(uint256 quantity) public payable {
        require(totalSupply() + quantity <= MAX_SUPPLY, "Exceeds max supply");
        require(addressMintedBalance[msg.sender] + quantity <= MAX_MINT_PER_ADDRESS, "Exceeds max per address");
        require(msg.value >= MINT_PRICE * quantity, "Ether sent is not correct");

        addressMintedBalance[msg.sender] += uint16(quantity);
        _mint(msg.sender, quantity);
    }

    // Override from erc721a so that it can be burned
    function burn(uint256 tokenId) public {
        _burn(tokenId);
    }

    // Override from erc721a so that it constuct our metadata
    function _baseURI() internal view virtual override returns (string memory) {
        return _baseTokenURI;
    }
    
    // Withdraw function to allow the owner to withdraw funds from contract
    function withdraw() public onlyOwner {
        uint256 balance = address(this).balance;
        require(balance > 0, "No ether left to withdraw");
        (bool success, ) = owner().call{value: balance}("");
        require(success, "Transfer failed");
    }
     
     // Back up function to correct base URI
    function setBaseURI(string memory newBaseURI) public onlyOwner {
        _baseTokenURI = newBaseURI;
    }
}