public function needleGroupProvider()
{
$randomcase = function (&$string) {
$chars = str_split($string);
array_walk($chars, function (&$char) {
rand(0, 1) ? $char = strtoupper($char) : ($char = strtolower($char));
});
return implode('', $chars);
};
$data = [];
foreach (SystemTable::getMap() as $group => $systems) {
$data[] = [$group, $group];
foreach ($systems as $system) {
$data[] = [ucfirst($system), $group];
$data[] = [$randomcase($system), $group];
}
}
return $data;
}