class ListTestsAsXmlCommand

final class ListTestsAsXmlCommand implements Command {
    private readonly string $filename;
    private readonly TestSuite $suite;
    public function __construct(string $filename, TestSuite $suite) {
        $this->filename = $filename;
        $this->suite = $suite;
    }
    public function execute() : Result {
        $buffer = $this->warnAboutConflictingOptions();
        $writer = new XMLWriter();
        $writer->openMemory();
        $writer->setIndent(true);
        $writer->startDocument();
        $writer->startElement('tests');
        $currentTestCase = null;
        foreach (new RecursiveIteratorIterator($this->suite) as $test) {
            if ($test instanceof TestCase) {
                if ($test::class !== $currentTestCase) {
                    if ($currentTestCase !== null) {
                        $writer->endElement();
                    }
                    $writer->startElement('testCaseClass');
                    $writer->writeAttribute('name', $test::class);
                    $currentTestCase = $test::class;
                }
                $writer->startElement('testCaseMethod');
                $writer->writeAttribute('id', $test->valueObjectForEvents()
                    ->id());
                $writer->writeAttribute('name', $test->name());
                $writer->writeAttribute('groups', implode(',', $test->groups()));
                
                /**
                 * @deprecated https://github.com/sebastianbergmann/phpunit/issues/5481
                 */
                if (!empty($test->dataSetAsString())) {
                    $writer->writeAttribute('dataSet', str_replace(' with data set ', '', $test->dataSetAsString()));
                }
                $writer->endElement();
                continue;
            }
            if ($test instanceof PhptTestCase) {
                if ($currentTestCase !== null) {
                    $writer->endElement();
                    $currentTestCase = null;
                }
                $writer->startElement('phptFile');
                $writer->writeAttribute('path', $test->getName());
                $writer->endElement();
            }
        }
        if ($currentTestCase !== null) {
            $writer->endElement();
        }
        $writer->endElement();
        file_put_contents($this->filename, $writer->outputMemory());
        $buffer .= sprintf('Wrote list of tests that would have been run to %s' . PHP_EOL, $this->filename);
        return Result::from($buffer);
    }
    private function warnAboutConflictingOptions() : string {
        $buffer = '';
        $configuration = Registry::get();
        if ($configuration->hasFilter()) {
            $buffer .= 'The --filter and --list-tests-xml options cannot be combined, --filter is ignored' . PHP_EOL;
        }
        if ($configuration->hasGroups()) {
            $buffer .= 'The --group and --list-tests-xml options cannot be combined, --group is ignored' . PHP_EOL;
        }
        if ($configuration->hasExcludeGroups()) {
            $buffer .= 'The --exclude-group and --list-tests-xml options cannot be combined, --exclude-group is ignored' . PHP_EOL;
        }
        if (!empty($buffer)) {
            $buffer .= PHP_EOL;
        }
        return $buffer;
    }

}