WipeEmpty::runWiping

private function runWiping(): array
{
	$processedItemCount = 0;
	for ($pos = ((int)$this->seekOffset > 0 ? (int)$this->seekOffset : 0), $total = count($this->pathList); $pos < $total; $pos ++)
	{
		$testPath = $this->pathList[$pos];

		$isOk = true;

		// file
		if (TranslateIOPath::isPhpFile($testPath))
		{
			$testPath = TranslateIOPath::replaceLangId($testPath, '#LANG_ID#');

			foreach (self::$enabledLanguagesList as $langId)
			{
				$langRelPath = TranslateIOPath::replaceLangId($testPath, $langId);
				$langFullPath = TranslateIOPath::tidy(self::$documentRoot.'/'.$langRelPath);
				$langFullPath = MainLocalizationTranslation::convertLangPath($langFullPath, $langId);

				if ($this->removeEmptyParents($langFullPath))
				{
					TranslateIndexInternalsFileIndexTable::purge(new TranslateFilter(['path' => $testPath, 'langId' => $langId]));
				}
				else
				{
					$isOk = false;
				}
			}
		}

		// folder
		else
		{
			if (mb_substr($testPath, -5) === '/lang')
			{
				$testPath .= '/#LANG_ID#';
			}
			else
			{
				$testPath = TranslateIOPath::replaceLangId($testPath, '#LANG_ID#');
			}

			foreach (self::$enabledLanguagesList as $langId)
			{
				$langRelPath = TranslateIOPath::replaceLangId($testPath. '/.nonExistentTestFile.php', $langId);
				$langFullPath = TranslateIOPath::tidy(self::$documentRoot.'/'.$langRelPath);
				$langFullPath = MainLocalizationTranslation::convertLangPath($langFullPath, $langId);

				if ($this->removeEmptyParents($langFullPath))
				{
					TranslateIndexInternalsFileIndexTable::purge(new TranslateFilter(['path' => $testPath, 'langId' => $langId]));
				}
				else
				{
					$isOk = false;
				}
			}
		}

		if ($isOk)
		{
			TranslateIndexInternalsPathIndexTable::purge(new TranslateFilter(['path' => $testPath]), false);
		}


		$processedItemCount ++;

		if (isset($this->pathList[$pos + 1]))
		{
			$this->seekOffset = $pos + 1;//next
		}
		else
		{
			$this->seekOffset = null;
			$this->declareAccomplishment();
			$this->clearProgressParameters();
		}

		if ($this->instanceTimer()->hasTimeLimitReached())
		{
			break;
		}
	}

	$this->processedItems += $processedItemCount;

	if ($this->instanceTimer()->hasTimeLimitReached() !== true)
	{
		$this->declareAccomplishment();
		$this->clearProgressParameters();
	}

	return [
		'PROCESSED_ITEMS' => $this->processedItems,
		'TOTAL_ITEMS' => $this->totalItems,
	];
}