// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import { IUpgradable } from '../../interfaces/IUpgradable.sol';

contract InvalidSetupProxyImplementation is IUpgradable {
    function owner() external pure override returns (address) {
        return address(0);
    }

    function transferOwnership(address) external override {}

    function pendingOwner() external pure returns (address) {
        return address(0);
    }

    function proposeOwnership(address newOwner) external {}

    function acceptOwnership() external {}

    function implementation() external pure override returns (address) {
        return address(0);
    }

    function upgrade(
        address,
        bytes32,
        bytes calldata
    ) external override {}

    function setup(
        bytes calldata /* data */
    ) external pure {
        revert('Always reverts');
    }

    function contractId() external pure returns (bytes32) {
        return keccak256('proxy-implementation');
    }
}