// Copyright 2019 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

syntax = "proto3";

package test_platform.multibot;

import "test_platform/skylab_local_state/multihost.proto";

// FollowerStateChange is sent over the multibot Leader->Follower channel, to
// carry state change information. The follower will only respect forward state
// changes. The same message is used internally between follower states.
message FollowerStateChange {
  enum FollowerState {
    STATE_UNDEFINED = 0x00;
    // Follower task has started executing. Note: follower will enter this state
    // automatically once it starts.
    STATE_STARTED = 0x10;
    // Follower task is waiting; payload has not started running.
    // Note: follower will enter this state automatically after finishing
    // prejob work and informing leader.
    STATE_WAITING_TO_RUN_PAYLOAD = 0x20;
    // Follower task is waiting; payload is running on leader.
    STATE_RUNNING_PAYLOAD = 0x30;
    // Follower task is running any necessary cleanup, after which it will
    // terminate.
    STATE_CLEANING = 0x40;
  }
  FollowerState new_state = 1;
}


// FollowerEvent is sent over the multibot Follower->Leader channel, to carry
// follower event information. The leader may use this to change state,
// depending on leader-specific logic and its internal state.
message FollowerEvent {
  message FinishedPrejob {
    skylab_local_state.MultiBotHostInfo host_info = 1;
  }

  oneof event {
    FinishedPrejob finished_prejob =1;
    bool died = 2;
  }
}