function processInput(inputValue: number | string | null) {
	if (inputValue == null || Number.isNaN(inputValue)) {
		return null;
	}

	return Number(inputValue);
}

export function fData(inputValue: number | string | null) {
	const number = processInput(inputValue);

	if (number === null || number === 0) {
		return '0 bytes';
	}

	const units = ['Bytes', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
	const decimal = 2;
	const baseValue = 1024;

	const index = Math.floor(Math.log(number) / Math.log(baseValue));
	const fm = `${parseFloat((number / baseValue ** index).toFixed(decimal))} ${units[index]}`;

	return fm;
}