export function formatTokenValue(amount_?: string | null, decimals?: number) {
	let result = "0.00";
	let money: string;
	let amount = amount_;

	if (amount) {
		if (Number.isNaN(Number(amount)) || Number(amount) === 0) {
			return "0.00";
		}

		if (Number(amount) > 0 && decimals !== undefined) {
			amount = formatUnits(amount, decimals);
		}

		const matched = amount.match(/^(0.0+)(.*)/);
		if (Number(amount) > 0 && Number(amount) < 1) {
			money = matched
				? // biome-ignore lint/style/noNonNullAssertion: Already checked the matched value is not null
					matched[1] + matched[2]!.slice(0, 3)
				: `0.${amount.split("0.")[1]?.slice(0, 3) ?? "0"}`;
		} else {
			money = Number(Number(amount).toFixed(3)).toString();
		}

		if (!money.includes(".")) {
			money = Number(amount).toFixed(2);
		}

		result = money.replace(/(\d)(?=(\d{3})+\.\d+)/g, "$1,");
	}

	return result;
}

export function formatUnits(bigNum: string, unit: number) {
	return (
		bigNum.length > unit
			? `${bigNum.slice(0, bigNum.length - unit)}.${bigNum.slice(-unit)}`
			: `0.${"0".repeat(unit - bigNum.length)}${bigNum}`
	).replace(/0+$/, "");
}

export function formatThousands(num: number) {
	if (Number.isNaN(num)) return num.toString();

	const withDecimal = Number(num > 1 ? num.toFixed(2) : num.toFixed(4))
		.toString()
		.split(".");

	if (withDecimal.length > 0) {
		// biome-ignore lint/style/noNonNullAssertion: Already checked the length of withDecimal is greater than 0
		withDecimal[0] = withDecimal[0]!.replace(/\B(?=(\d{3})+(?!\d))/g, ",");
	}

	return withDecimal.join(".");
}

export function formatPrecision(num: number, n = 2) {
	const scale = 10 ** n;
	return Math.round(num * scale) / scale;
}