gistfile1.txt

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.10;

import "@openzeppelin/contracts-upgradeable/token/ERC1155/ERC1155Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/security/PausableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC1155/extensions/ERC1155BurnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC1155/extensions/ERC1155SupplyUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts/utils/Strings.sol";

/**
 * @title OneV
 * @dev pre-mint 3 tokens
 */
contract OneVU is Initializable, ERC1155Upgradeable, AccessControlUpgradeable, PausableUpgradeable, ERC1155BurnableUpgradeable, ERC1155SupplyUpgradeable {
    // these state variables and their values
    // will be preserved forever, regardless of upgrading
    bytes32 public constant URI_SETTER_ROLE = keccak256("URI_SETTER_ROLE");
    bytes32 public constant PAUSER_ROLE = keccak256("PAUSER_ROLE");
    bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE");

    uint256 public constant Rock = 1;
    uint256 public constant Paper = 2;
    uint256 public constant Scissors = 3;

    /// @custom:oz-upgrades-unsafe-allow constructor
    // constructor() initializer {
        /**
         * NOTE: putting these in initialize doesn't work, they just don't get minted. In the constructor, they
         * are minted on the **implementation contract** address.
         **/
        // _mint(msg.sender, Rock, 1, "");
        // _mint(msg.sender, Paper, 1, "");
        // _mint(msg.sender, Scissors, 1, "");
    // }

    function initialize() initializer public {
        __ERC1155_init("https://ipfs.io/ipfs/bafybeigo7inkcatifkwgydozhmz5ms4ebco7bq7ccu25w33smvr52dq6o4/{id}.json");
        __AccessControl_init();
        __Pausable_init();
        __ERC1155Burnable_init();
        __ERC1155Supply_init();

        _grantRole(DEFAULT_ADMIN_ROLE, msg.sender);
        _grantRole(URI_SETTER_ROLE, msg.sender);
        _grantRole(PAUSER_ROLE, msg.sender);
        _grantRole(MINTER_ROLE, msg.sender);

        _mint(msg.sender, Rock, 1, "");
        _mint(msg.sender, Paper, 1, "");
        _mint(msg.sender, Scissors, 1, "");
    }

    function setURI(string memory newuri) public onlyRole(URI_SETTER_ROLE) {
        _setURI(newuri);
    }

    function pause() public onlyRole(PAUSER_ROLE) {
        _pause();
    }

    function unpause() public onlyRole(PAUSER_ROLE) {
        _unpause();
    }

    // anybody with a wallet address can mint
    function mint(address account, uint256 id, uint256 amount, bytes memory data) public {
        _mint(account, id, amount, data);
    }

    function mintBatch(address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data)
        public
        onlyRole(MINTER_ROLE)
    {
        _mintBatch(to, ids, amounts, data);
    }

    function _beforeTokenTransfer(address operator, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data)
        internal
        whenNotPaused
        override(ERC1155Upgradeable, ERC1155SupplyUpgradeable)
    {
        super._beforeTokenTransfer(operator, from, to, ids, amounts, data);
    }

    // The following functions are overrides required by Solidity.

    function supportsInterface(bytes4 interfaceId)
        public
        view
        override(ERC1155Upgradeable, AccessControlUpgradeable)
        returns (bool)
    {
        return super.supportsInterface(interfaceId);
    }

    function uri(uint256 _tokenid) override public pure returns (string memory) {
        return string(
            abi.encodePacked(
                "https://ipfs.io/ipfs/bafybeigo7inkcatifkwgydozhmz5ms4ebco7bq7ccu25w33smvr52dq6o4/",
                Strings.toString(_tokenid),".json"
            )
        );
    }

    function contractURI() public pure returns (string memory) {
        return "https://ipfs.io/ipfs/bafkreiddo6pmuztmwcnesdadyqwmioupfuwv7lli5bjzovy4ztn3yzvt54";
    }
}