import { isDefined } from '@wener/utils';

export function formatAmount(
	v?: number | string,
	{
		currency,
		fallback = '-',
	}: {
		currency?: string;
		fallback?: string;
	} = {},
) {
	if (!isDefined(v)) {
		return fallback;
	}
	if (typeof v === 'string') {
		v = Number.parseFloat(v);
	}
	if (Number.isNaN(v)) {
		return fallback;
	}
	if (currency) {
		return new Intl.NumberFormat('zh-CN', { style: 'currency', currency }).format(v);
	}
	return new Intl.NumberFormat('zh-CN', { minimumFractionDigits: 2, maximumFractionDigits: 2 }).format(v);
}