private truncateDate()

in glean/src/core/metrics/types/datetime.ts [209:238]

• 25 lines of code
• 6 McCabe index (conditional complexity)

  private truncateDate(value?: Date) {
    if (!value) {
      value = new Date();
    }

    // We always save a milliseconds precision ISO string on the database,
    // regardless of the time unit. So we zero out information that
    // is not necessary for the current time unit of this metric.
    const truncatedDate = value;
    switch (this.timeUnit) {
    case TimeUnit.Day:
      truncatedDate.setMilliseconds(0);
      truncatedDate.setSeconds(0);
      truncatedDate.setMinutes(0);
      truncatedDate.setMilliseconds(0);
    case TimeUnit.Hour:
      truncatedDate.setMilliseconds(0);
      truncatedDate.setSeconds(0);
      truncatedDate.setMinutes(0);
    case TimeUnit.Minute:
      truncatedDate.setMilliseconds(0);
      truncatedDate.setSeconds(0);
    case TimeUnit.Second:
      truncatedDate.setMilliseconds(0);
    default:
      break;
    }

    return truncatedDate;
  }