import { Price, CurrencyAmount, Currency, Fraction } from "@uniswap/sdk-core";
import JSBI from "jsbi";

export function formatTokenAmount(
  amount: CurrencyAmount<Currency> | undefined,
  sigFigs: number
) {
  if (!amount) {
    return "-";
  }

  if (JSBI.equal(amount.quotient, JSBI.BigInt(0))) {
    return "0";
  }

  if (amount.divide(amount.decimalScale).lessThan(new Fraction(1, 100000))) {
    return "<0.00001";
  }

  return amount.toSignificant(sigFigs);
}

export function formatPrice(
  price: Price<Currency, Currency> | undefined,
  sigFigs: number
) {
  if (!price) {
    return "-";
  }

  if (parseFloat(price.toFixed(sigFigs)) < 0.0001) {
    return "<0.0001";
  }

  return price.toSignificant(sigFigs);
}