import { Event } from './Event';

/**
 * The counter events can track a value or multiple values as they change over time.
 * Counter events are specified with the C phase type.
 * Each counter can be provided with multiple series of data to display.
 * When multiple series are provided they will be displayed as a stacked area chart in Trace Viewer.
 * Please note that counters are process-local.
 */
export interface CounterEvent extends Event {
  /** @inheritDoc */
  ph: 'C';
  /** @inheritDoc */
  name: string;
  /**
   * When an id field exists, the combination of the event name and id is used as the counter name.
   */
  id?: number;
  /**
   * Reportedly, counter events do not have categories.
   */
  cat?: never;
}