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

import "@openzeppelin/contracts/access/AccessControl.sol";

contract DBIS_RootRegistry is AccessControl {
    bytes32 public constant ROOT_ADMIN_ROLE = keccak256("ROOT_ADMIN");
    mapping(bytes32 => address) private _components;
    string public railVersion;

    event ComponentUpdated(bytes32 indexed key, address indexed addr, string railVersion);

    constructor(address admin, string memory _railVersion) {
        _grantRole(DEFAULT_ADMIN_ROLE, admin);
        _grantRole(ROOT_ADMIN_ROLE, admin);
        railVersion = _railVersion;
    }

    function setComponent(bytes32 key, address addr) external onlyRole(ROOT_ADMIN_ROLE) {
        _components[key] = addr;
        emit ComponentUpdated(key, addr, railVersion);
    }

    function getComponent(bytes32 key) external view returns (address) {
        return _components[key];
    }

    function setRailVersion(string calldata _version) external onlyRole(ROOT_ADMIN_ROLE) {
        railVersion = _version;
    }
}