> */ private static $datasets = []; /** * Sets the given. * * @param Closure|iterable $data */ public static function set(string $name, $data): void { if (array_key_exists($name, self::$datasets)) { throw new DatasetAlreadyExist($name); } self::$datasets[$name] = $data; } /** * @return Closure|iterable */ public static function get(string $name) { if (!array_key_exists($name, self::$datasets)) { throw new DatasetDoesNotExist($name); } return self::$datasets[$name]; } /** * Resolves the current dataset to an array value. * * @param array|string> $datasets * * @return array */ public static function resolve(string $description, array $datasets): array { /* @phpstan-ignore-next-line */ if (empty($datasets)) { return [$description => []]; } $datasets = self::processDatasets($datasets); $datasetCombinations = self::getDataSetsCombinations($datasets); $dataSetDescriptions = []; $dataSetValues = []; foreach ($datasetCombinations as $datasetCombination) { $partialDescriptions = []; $values = []; foreach ($datasetCombination as $dataset_data) { $partialDescriptions[] = $dataset_data['label']; $values = array_merge($values, $dataset_data['values']); } $dataSetDescriptions[] = $description . ' with ' . implode(' / ', $partialDescriptions); $dataSetValues[] = $values; } foreach (array_count_values($dataSetDescriptions) as $descriptionToCheck => $count) { if ($count > 1) { $index = 1; foreach ($dataSetDescriptions as $i => $dataSetDescription) { if ($dataSetDescription === $descriptionToCheck) { $dataSetDescriptions[$i] .= sprintf(' #%d', $index++); } } } } $namedData = []; foreach ($dataSetDescriptions as $i => $dataSetDescription) { $namedData[$dataSetDescription] = $dataSetValues[$i]; } return $namedData; } /** * @param array|string> $datasets * * @return array */ private static function processDatasets(array $datasets): array { $processedDatasets = []; foreach ($datasets as $index => $data) { $processedDataset = []; if (is_string($data)) { $datasets[$index] = self::get($data); } if (is_callable($datasets[$index])) { $datasets[$index] = call_user_func($datasets[$index]); } if ($datasets[$index] instanceof Traversable) { $preserveKeysForArrayIterator = $datasets[$index] instanceof Generator && is_string($datasets[$index]->key()); $datasets[$index] = iterator_to_array($datasets[$index], $preserveKeysForArrayIterator); } foreach ($datasets[$index] as $key => $values) { $values = is_array($values) ? $values : [$values]; $processedDataset[] = [ 'label' => self::getDataSetDescription($key, $values), 'values' => $values, ]; } $processedDatasets[] = $processedDataset; } return $processedDatasets; } /** * @param array $combinations * * @return array */ private static function getDataSetsCombinations(array $combinations): array { $result = [[]]; foreach ($combinations as $index => $values) { $tmp = []; foreach ($result as $resultItem) { foreach ($values as $value) { $tmp[] = array_merge($resultItem, [$index => $value]); } } $result = $tmp; } return $result; } /** * @param int|string $key * @param array $data */ private static function getDataSetDescription($key, array $data): string { $exporter = new Exporter(); if (is_int($key)) { return \sprintf('(%s)', $exporter->shortenedRecursiveExport($data)); } return \sprintf('data set "%s"', $key); } }