import * as _ from "lodash";
import * as numeral from "numeral";

export const parseIntOr = (str: string, fallback: number): number => {
  const parsed = parseInt(str, 10);

  if (_.isNaN(parsed)) {
    return fallback;
  }

  return parsed;
}

export const formatLargeNumber = (num: any): string => {
  if (!_.isNumber(num)) {
    return num;
  }

  return num > 999 ? numeral(num).format("0.0a") : num.toString();
};

export const randomIncrement = (initial: number = 0, limit: number = 100): number => {
  const num = random(limit);

  // Guard against num being higher than limit
  if (initial + num > limit) return initial;

  return randomIncrement(initial + num, limit);
}

export const random = (limit: number): number => Math.round(Math.random() * limit);

export const newRandom = (limit: number, old: number): number => {
  const rand = random(limit);

  // Guard against same number
  if (rand === old) return newRandom(limit, old);

  return rand;
}