// Copyright 2021 Cartesi Pte. Ltd.

// SPDX-License-Identifier: Apache-2.0
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use
// this file except in compliance with the License. You may obtain a copy of the
// License at http://www.apache.org/licenses/LICENSE-2.0

// Unless required by applicable law or agreed to in writing, software distributed
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.

pragma solidity >=0.7.0;

interface StakingPoolWorker {
    /// @notice allows for the pool to act on its own behalf when producing blocks.
    function selfhire() external payable;

    /// @notice Asks the worker to work for the sender. Sender needs to pay something.
    /// @param workerAddress address of the worker
    function hire(address payable workerAddress) external payable;

    /// @notice Called by the user to cancel a job offer
    /// @param workerAddress address of the worker node
    function cancelHire(address workerAddress) external;

    /// @notice Called by the user to retire his worker.
    /// @param workerAddress address of the worker to be retired
    /// @dev this also removes all authorizations in place
    function retire(address payable workerAddress) external;
}