RareTokenL2.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

import "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC20/extensions/ERC20BurnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC20/extensions/ERC20PausableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC20/extensions/ERC20PermitUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";

contract SuperRareTokenL2 is
  Initializable,
  ERC20Upgradeable,
  ERC20BurnableUpgradeable,
  ERC20PausableUpgradeable,
  AccessControlUpgradeable,
  ERC20PermitUpgradeable,
  UUPSUpgradeable
{
  bytes32 public constant PAUSER_ROLE = keccak256("PAUSER_ROLE");
  bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE");
  bytes32 public constant UPGRADER_ROLE = keccak256("UPGRADER_ROLE");

  /// @custom:oz-upgrades-unsafe-allow constructor
  constructor() {
    _disableInitializers();
  }

  /// @notice Initializes the contract with the provided admin and minter addresses.
  /// @param admin The admin address.
  function initialize(address admin) public initializer {
    __ERC20_init("SuperRare", "RARE");
    __ERC20Burnable_init();
    __ERC20Pausable_init();
    __AccessControl_init();
    __ERC20Permit_init("SuperRare");
    __UUPSUpgradeable_init();

    _grantRole(DEFAULT_ADMIN_ROLE, admin);
    _grantRole(PAUSER_ROLE, admin);
    _grantRole(UPGRADER_ROLE, admin);
  }

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

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

  function mint(address to, uint256 amount) public onlyRole(MINTER_ROLE) {
    _mint(to, amount);
  }

  function _authorizeUpgrade(address newImplementation) internal override onlyRole(UPGRADER_ROLE) {}

  // The following functions are overrides required by Solidity.

  function _update(
    address from,
    address to,
    uint256 value
  ) internal override(ERC20Upgradeable, ERC20PausableUpgradeable) {
    super._update(from, to, value);
  }
}