All files / components/Paginator Paginator.selectors.js

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import _ from 'lodash';
 
function totalPagesSelector({
	pageSizeOptions,
	selectedPageSizeIndex,
	totalCount,
	totalPages,
}) {
	const pageSize = pageSizeOptions[selectedPageSizeIndex];
	return _.isNumber(totalPages)
		? totalPages
		: totalCount <= pageSize
			? 1
			: Math.floor(totalCount / pageSize) + _.clamp(totalCount % pageSize, 0, 1);
}
 
export default {
	totalPages: totalPagesSelector,
};