// SPDX-License-Identifier: MIT
pragma solidity ^0.8.23;

// interfaces
import {IDiamondLoupe} from "../../facets/loupe/IDiamondLoupe.sol";
import {IProxyManagerBase} from "./IProxyManager.sol";

// libraries
import {ProxyManagerStorage} from "./ProxyManagerStorage.sol";
import {Address} from "@openzeppelin/contracts/utils/Address.sol";

// contracts

abstract contract ProxyManagerBase is IProxyManagerBase {
    function _getImplementation(bytes4 selector) internal view virtual returns (address) {
        address implementation = ProxyManagerStorage.layout().implementation;
        address facet = IDiamondLoupe(implementation).facetAddress(selector);
        if (facet == address(0)) return implementation;
        return facet;
    }

    function _setImplementation(address implementation) internal {
        if (implementation.code.length == 0) {
            revert ProxyManager__NotContract(implementation);
        }

        ProxyManagerStorage.layout().implementation = implementation;

        emit ProxyManager__ImplementationSet(implementation);
    }
}