syntax = "proto3";

import "internal/gogo.proto";

package com.influxdata.platform.task.backend;

option go_package = "backend";

// StoreTaskMeta is the internal state of a task.
message StoreTaskMeta {
  int32 max_concurrency = 1;

  // latest_completed is the unix timestamp of the latest "naturally" completed run.
  // If a run for time t finishes before a run for time t - u, latest_completed will reflect time t.
  int64 latest_completed = 2;

  // status indicates if the task is enabled or disabled.
  string status = 3;

  // currently_running is the collection of runs in-progress.
  // If a runner crashes or otherwise disappears, this indicates to the new runner what needs to be picked up.
  repeated StoreTaskMetaRun currently_running = 4;

  // effective_cron is the effective cron string as reported by the task's options.
  string effective_cron = 5;

  // Task's configured delay, in seconds.
  int32 delay = 6;

  // Fields below here are less likely to be present, so we're counting from 16 in order to
  // use the 1-byte-encodable values where we can be more sure they're present.

  repeated StoreTaskMetaManualRun manual_runs = 16;
}

message StoreTaskMetaRun {
  // now is the unix timestamp of the "now" value for the run.
  int64 now = 1;
  uint32 try = 2;
  bytes run_id = 3 [(gogoproto.customname) = "RunID"];

  // range_start is the start of the manual run's time range.
  int64 range_start = 4;

  // range_end is the end of the manual run's time range.
  int64 range_end = 5;

  // requested_at is the unix timestamp indicating when this run was requested.
  // It is the same value as the "parent" StoreTaskMetaManualRun, if this run was the result of a manual request.
  int64 requested_at = 6;
}

// StoreTaskMetaManualRun indicates a manually requested run for a time range.
// It has a start and end pair of unix timestamps indicating the time range covered by the request.
message StoreTaskMetaManualRun {
  // start is the earliest allowable unix time stamp for this queue of runs.
  int64 start = 1;

  // end is the latest allowable unix time stamp for this queue of runs.
  int64 end = 2;

  // latest_completed is the timestamp of the latest completed run from this queue.
  int64 latest_completed = 3;

  // requested_at is the unix timestamp indicating when this run was requested.
  int64 requested_at = 4;
}