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

import "../ResolverBase.sol";
import "./INameResolver.sol";

abstract contract NameResolver is INameResolver, ResolverBase {
    mapping(uint64 => mapping(bytes32 => string)) versionable_names;

    /// Sets the name associated with an ENS node, for reverse records.
    /// May only be called by the owner of that node in the ENS registry.
    /// @param node The node to update.
    function setName(
        bytes32 node,
        string calldata newName
    ) external virtual authorised(node) {
        versionable_names[recordVersions[node]][node] = newName;
        emit NameChanged(node, newName);
    }

    /// Returns the name associated with an ENS node, for reverse records.
    /// Defined in EIP181.
    /// @param node The ENS node to query.
    /// @return The associated name.
    function name(
        bytes32 node
    ) external view virtual override returns (string memory) {
        return versionable_names[recordVersions[node]][node];
    }

    function supportsInterface(
        bytes4 interfaceID
    ) public view virtual override returns (bool) {
        return
            interfaceID == type(INameResolver).interfaceId ||
            super.supportsInterface(interfaceID);
    }
}