<?php declare(strict_types = 1);

namespace PHPStan\Process;

use PHPStan\Command\AnalyseCommand;
use PHPStan\Turbo\TurboExtensionSelector;
use Symfony\Component\Console\Input\InputInterface;
use function array_merge;
use function escapeshellarg;
use function implode;
use function ini_get;
use function is_bool;
use function php_ini_loaded_file;
use function sprintf;
use function sys_get_temp_dir;
use const PHP_BINARY;

final class ProcessHelper
{

	/**
	 * @param string[] $additionalItems
	 */
	public static function getWorkerCommand(
		string $mainScript,
		string $commandName,
		?string $projectConfigFile,
		array $additionalItems,
		InputInterface $input,
	): string
	{
		$phpIni = php_ini_loaded_file();
		$phpCmd = $phpIni === false ? escapeshellarg(PHP_BINARY) : sprintf('%s -c %s', escapeshellarg(PHP_BINARY), escapeshellarg($phpIni));

		$processCommandArray = [
			$phpCmd,
			'-d',
			// quote value so PHP will parse it as a string when the path contains a bitwise operator like ~
			'sys_temp_dir=' . escapeshellarg("'" . sys_get_temp_dir() . "'"),
		];

		if ($input->getOption('memory-limit') === null) {
			$processCommandArray[] = '-d';
			$processCommandArray[] = 'memory_limit=' . ini_get('memory_limit');
		}

		$turboExtension = TurboExtensionSelector::findExtensionForWorkers();
		if ($turboExtension !== null) {
			$processCommandArray[] = '-d';
			// quote value so PHP will parse it as a string when the path contains a bitwise operator like ~
			$processCommandArray[] = 'extension=' . escapeshellarg("'" . $turboExtension . "'");
		}

		foreach ([$mainScript, $commandName] as $arg) {
			$processCommandArray[] = escapeshellarg($arg);
		}

		if ($projectConfigFile !== null) {
			$processCommandArray[] = '--configuration';
			$processCommandArray[] = escapeshellarg($projectConfigFile);
		}

		$options = [
			AnalyseCommand::OPTION_LEVEL,
			'autoload-file',
			'memory-limit',
			'xdebug',
			'verbose',
		];
		foreach ($options as $optionName) {
			/** @var bool|string|null $optionValue */
			$optionValue = $input->getOption($optionName);
			if (is_bool($optionValue)) {
				if ($optionValue === true) {
					$processCommandArray[] = sprintf('--%s', $optionName);
				}
				continue;
			}
			if ($optionValue === null) {
				continue;
			}

			$processCommandArray[] = sprintf('--%s=%s', $optionName, escapeshellarg($optionValue));
		}

		$processCommandArray = array_merge($processCommandArray, $additionalItems);

		$processCommandArray[] = '--';

		/** @var string[] $paths */
		$paths = $input->getArgument('paths');
		foreach ($paths as $path) {
			$processCommandArray[] = escapeshellarg($path);
		}

		return implode(' ', $processCommandArray);
	}

}