/**
 * Splits an array into ordered chunks of `size` elements.
 */
export function chunkArray<T>(items: T[], size: number): T[][] {
	if (!Number.isInteger(size) || size <= 0) {
		throw new Error('Chunk size must be a positive integer');
	}

	if (items.length === 0) {
		return [];
	}

	const chunks: T[][] = [];

	for (let i = 0; i < items.length; i += size) {
		chunks.push(items.slice(i, i + size));
	}

	return chunks;
}