Files
nexcurrency/lib/format.ts

48 lines
1.1 KiB
TypeScript

import { RateAsset } from "@/lib/rates";
export function formatAmount(value: number, asset: RateAsset): string {
if (!Number.isFinite(value)) {
return "-";
}
if (asset.type === "crypto") {
if (value === 0) {
return "0";
}
if (Math.abs(value) < 0.00000001) {
return "<0.00000001";
}
const formatted = value.toLocaleString("en-US", {
minimumFractionDigits: 8,
maximumFractionDigits: 8
});
return formatted;
}
return value.toLocaleString("en-US", {
minimumFractionDigits: 2,
maximumFractionDigits: 2
});
}
export function formatRate(from: RateAsset, to: RateAsset): string {
const rate = from.usdPrice / to.usdPrice;
return formatAmount(rate, to);
}
export function formatInverseRate(from: RateAsset, to: RateAsset): string {
const inverse = to.usdPrice / from.usdPrice;
return formatAmount(inverse, from);
}
export function formatTimestamp(value: string): string {
const date = new Date(value);
return new Intl.DateTimeFormat("en-US", {
dateStyle: "medium",
timeStyle: "short"
}).format(date);
}