// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you 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.

syntax = "proto2";

import "mesos/mesos.proto";

package mesos.allocator;


/**
 * Describes the status of an inverse offer.
 *
 * This is a protobuf so as to be able to share the status to inverse offers
 * through endpoints such as the maintenance status endpoint.
 */
message InverseOfferStatus {
  enum Status {
    // We have not received a response yet. This is the default state before
    // receiving a response.
    UNKNOWN = 1;
    // The framework is ok with the inverse offer. This means it will not
    // violate any SLAs and will attempt to evacuate any tasks running on the
    // agent. If the tasks are not evacuated by the framework, the operator can
    // manually shut down the slave knowing that the framework will not have
    // violated its SLAs.
    ACCEPT = 2;
    // The framework wants to block the maintenance operation from happening. An
    // example would be that it cannot meet its SLA by losing resources.
    DECLINE = 3;
  }

  required Status status = 1;
  required FrameworkID framework_id = 2;

  // Time, since the epoch, when this status was last updated.
  required TimeInfo timestamp = 3;

  // TODO(jmlvanre): Capture decline message.
}