30Web3_Genesis_NFT/packages/hardhat/contracts/Adminlist.sol at main · kethcode/30Web3_Genesis_NFT · GitHub

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// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;

/*
* @author: kethcode
*/

/// ----------------------------------------------------------------------------
/// Errors
/// ----------------------------------------------------------------------------

error NotAdmin();

abstract contract Adminlist {

    /// ------------------------------------------------------------------------
    /// Events
    /// ------------------------------------------------------------------------

    event AdminAddressAdded(address addr);
    event AdminAddressRemoved(address addr);

    /// ------------------------------------------------------------------------
    /// Variables
    /// ------------------------------------------------------------------------

    mapping(address => bool) public adminlist;

    /// ------------------------------------------------------------------------
    /// Modifiers
    /// ------------------------------------------------------------------------

    modifier onlyAdmin()
    {
        if(!adminlist[msg.sender]) revert NotAdmin();
        _;
    }

    /// ------------------------------------------------------------------------
    /// Functions
    /// ------------------------------------------------------------------------

    function addAddressToAdminlist(address addr)
        public
        onlyAdmin
        returns(bool success)
    {
        if (!adminlist[addr]) {
            adminlist[addr] = true;
            emit AdminAddressAdded(addr);
            success = true;
        }
    }

    function removeAddressFromAdminlist(address addr)
        public
        onlyAdmin
        returns(bool success)
    {
        if (adminlist[addr]) {
            adminlist[addr] = false;
            emit AdminAddressRemoved(addr);
            success = true;
        }
    }

    function _setupAdmin(address addr)
        internal
        virtual
    {
        adminlist[addr] = true;
        emit AdminAddressAdded(addr);
    }
}