Differential D9091 Diff 27460 web/cashtab-components/src/utils/cashtab-helpers.ts

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web/cashtab-components/src/utils/cashtab-helpers.ts

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				// Currency endpoints, logic, converters and formatters

				import BigNumber from 'bignumber.js';
				import { currencySymbolMap } from './currency-helpers';
				import type { CurrencyCode } from './currency-helpers';
				import Ticker from '../atoms/Ticker/';

				const buildPriceEndpoint = (currency: CurrencyCode) => {
				return `https://api.coingecko.com/api/v3/simple/price?ids=${Ticker.coingeckoId}&vs_currencies=${currency}&include_last_updated_at=true`;
				};

				const getAddressUnconfirmed = async (address: string): Promise<string[]> => {
				const transactionsRequest = await fetch(
				`https://rest.bitcoin.com/v2/address/unconfirmed/${address}`,
				);
				const result = await transactionsRequest.json();
				return result.utxos \|\| [];
				};

				const getTokenInfo = async (coinId: string): Promise<any> => {
				const tokenInfoRequest = await fetch(
				`https://rest.bitcoin.com/v2/slp/list/${coinId}`,
				);
				const tokenInfo = await tokenInfoRequest.json();
				return tokenInfo;
				};

				const getCurrencyPreSymbol = (currency: CurrencyCode) => {
				return currencySymbolMap[currency];
				};

				const formatPriceDisplay = (price?: number): string \| undefined => {
				if (!price) return undefined;
				if (price > 1) {
				return price
				.toLocaleString('en-US', {
				style: 'currency',
				currency: 'USD',
				})
				.slice(1);
				} else {
				return (+price).toFixed(5);
				}
				};

				const formatAmount = (amount?: number, decimals?: number): string => {
				if (!decimals) {
				return '-.--------';
				}
				if (!amount) {
				return `-.`.padEnd(decimals + 2, '-');
				}
				const baseAmount = new BigNumber(amount);
				const adjustDecimals = baseAmount
				.shiftedBy(-1 * decimals)
				.toFixed(decimals);
				const removeTrailing = +adjustDecimals + '';

				return removeTrailing;
				};

				const priceToSatoshis = (BCHRate: number, price: number): number => {
				const singleDollarValue = new BigNumber(BCHRate);
				const satoshisPerBCH = new BigNumber(100000000);
				const singleDollarSatoshis = satoshisPerBCH.div(singleDollarValue);

				return +singleDollarSatoshis
				.times(price)
				.integerValue(BigNumber.ROUND_FLOOR);
				};

				const priceToFiat = (BCHRate: number, price: number): number => {
				const singleDollarValue = new BigNumber(BCHRate);
				return +singleDollarValue.times(price);
				};

				const fiatToSatoshis = async (
				currency: CurrencyCode,
				price: number,
				): Promise<number> => {
				const priceRequest = await fetch(buildPriceEndpoint(currency));
				const result = await priceRequest.json();
				const fiatPrice = result[Ticker.coingeckoId][currency.toLowerCase()];
				const satoshis = priceToSatoshis(fiatPrice, price);
				return satoshis;
				};

				const bchToFiat = async (
				currency: CurrencyCode,
				price: number,
				): Promise<number> => {
				const priceRequest = await fetch(buildPriceEndpoint(currency));
				const result = await priceRequest.json();
				const fiatPrice = result[currency].rate;

				const fiatInvoiceTotal = priceToFiat(fiatPrice, price);
				return fiatInvoiceTotal;
				};

				const adjustAmount = (
				amount?: number,
				decimals?: number,
				fromSatoshis?: boolean,
				): string \| undefined => {
				decimals = decimals \|\| 0;
				const shiftBy = !fromSatoshis ? decimals : decimals * -1;

				return amount
				? new BigNumber(amount).shiftedBy(shiftBy).toString()
				: undefined;
				};

				export {
				adjustAmount,
				buildPriceEndpoint,
				fiatToSatoshis,
				bchToFiat,
				formatAmount,
				formatPriceDisplay,
				getAddressUnconfirmed,
				getCurrencyPreSymbol,
				getTokenInfo,
				priceToSatoshis,
				};