/**
 * Convert large numbers to human readable strings
 * @source https://github.com/rohmanhm/simplify-number
 */
export function simplify(num = 0): string {
	let numberVar = num;

	// 2 decimal places => 100, 3 => 1000, etc
	const decPlaces = Math.pow(10, 1);

	// Enumerate number abbreviations
	const abbrev = ['K', 'M', 'B', 'T'];

	// Go through the array backwards, so we do the largest first
	for (let i = abbrev.length - 1; i >= 0; i--) {
		// Convert array index to "1000", "1000000", etc
		const size = Math.pow(10, (i + 1) * 3);

		// If the number is bigger or equal do the abbreviation
		if (size <= numberVar) {
			// Here, we multiply by decPlaces, round, and then divide by decPlaces.
			// This gives us nice rounding to a particular decimal place.
			numberVar = Math.round((numberVar * decPlaces) / size) / decPlaces;

			// Handle special case where we round up to the next abbreviation
			if (numberVar === 1000 && i < abbrev.length - 1) {
				numberVar = 1;
				i++;
			}

			// Add the letter for the abbreviation
			(numberVar as any) += abbrev[i];

			// We are done... stop
			break;
		}
	}

	return String(numberVar);
}