import { MetricsType } from './MetricsType';

export class MetricsValue {
  constructor(public readonly type: MetricsType, private readonly value: number | null) {}

  isEmpty() {
    return this.value === null;
  }

  getLevel() {
    return this.isEmpty() ? 0 : this.type.getLevel(Number(this));
  }

  valueOf() {
    return this.isEmpty() ? 0 : Math.round(<number>this.value * Math.pow(10, 2)) / Math.pow(10, 2);
  }

  toString() {
    return this.isEmpty() ? '−' : Number(this).toLocaleString();
  }
}