SportsPress: Sort Players in Event Performance (supports multiple sorting callbacks)

sportspress_multisort_event_players.php

<?php

add_action('init', function () {

	$sort_by_status_cb = function ($a, $b) {
		return ($a['status'] === 'sub') <=> ($b['status'] === 'sub');
	};

	$sort_by_position_cb = function ($a, $b) {

		$get_positions_by_order = function () {
			$positions = get_terms(array(
				'taxonomy'   => 'sp_position',
				'hide_empty' => false,
				'orderby'    => 'meta_value_num',
				'order'      => 'ASC',
				'meta_key'   => 'sp_order',
			));
			return wp_list_pluck($positions, 'name', 'term_id');
		};

		$ordered_positions = array_keys($get_positions_by_order());

		$get_min_index = function ($positions) use ($ordered_positions) {
			$positions = (array) $positions;
			foreach ($ordered_positions as $index => $term_id) {
				if (in_array($term_id, $positions)) {
					return $index;
				}
			}
		};

		return $get_min_index($a['position']) <=> $get_min_index($b['position']);
	};

	$composite_sort_cb = fn(...$cbs) => fn($a, $b) => array_reduce($cbs, fn($r, $cb) => $r ?: $cb($a, $b), 0);

	add_filter('sportspress_event_performance_players', function ($data) use (
		$composite_sort_cb,
		$sort_by_position_cb,
		$sort_by_status_cb,
	) {
		if (empty($positions_ids)) {
			return $data;
		}

		$headers = $data[0];
		$sorted_data = array_slice($data, 1, null, true);

		uasort($sorted_data, $composite_sort_cb(
			$sort_by_status_cb,
			$sort_by_position_cb,
		));

		$data = array_merge(array($headers), $sorted_data);

		return $sorted_data;
	});
});