<?php
/*
* This file is part of PHP Copy/Paste Detector (PHPCPD).
*
* (c) Sebastian Bergmann <sebastian@phpunit.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/

namespace SebastianBergmann\PHPCPD\CLI;

use SebastianBergmann\PHPCPD\Detector\Detector;
use SebastianBergmann\PHPCPD\Detector\Strategy\DefaultStrategy;
use SebastianBergmann\PHPCPD\Log\PMD;
use SebastianBergmann\PHPCPD\Log\Text;
use SebastianBergmann\FinderFacade\FinderFacade;
use Symfony\Component\Console\Command\Command as AbstractCommand;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Helper\ProgressBar;

class Command extends AbstractCommand
{
/**
* Configures the current command.
*/
protected function configure()
{
$this->setName('phpcpd')
->setDefinition(
[
new InputArgument(
'values',
InputArgument::IS_ARRAY,
'Files and directories to analyze'
)
]
)
->addOption(
'names',
null,
InputOption::VALUE_REQUIRED,
'A comma-separated list of file names to check',
['*.php']
)
->addOption(
'names-exclude',
null,
InputOption::VALUE_REQUIRED,
'A comma-separated list of file names to exclude',
[]
)
->addOption(
'regexps-exclude',
null,
InputOption::VALUE_REQUIRED,
'A comma-separated list of paths regexps to exclude (example: "#var/.*_tmp#")',
[]
)
->addOption(
'exclude',
null,
InputOption::VALUE_REQUIRED | InputOption::VALUE_IS_ARRAY,
'Exclude a directory from code analysis (must be relative to source)'
)
->addOption(
'log-pmd',
null,
InputOption::VALUE_REQUIRED,
'Write result in PMD-CPD XML format to file'
)
->addOption(
'min-lines',
null,
InputOption::VALUE_REQUIRED,
'Minimum number of identical lines',
5
)
->addOption(
'min-tokens',
null,
InputOption::VALUE_REQUIRED,
'Minimum number of identical tokens',
70
)
->addOption(
'fuzzy',
null,
InputOption::VALUE_NONE,
'Fuzz variable names'
)
->addOption(
'progress',
null,
InputOption::VALUE_NONE,
'Show progress bar'
);
}

/**
* Executes the current command.
*
* @param InputInterface $input An InputInterface instance
* @param OutputInterface $output An OutputInterface instance
*
* @return null|int null or 0 if everything went fine, or an error code
*/
protected function execute(InputInterface $input, OutputInterface $output)
{
$finder = new FinderFacade(
$input->getArgument('values'),
$input->getOption('exclude'),
$this->handleCSVOption($input, 'names'),
$this->handleCSVOption($input, 'names-exclude'),
$this->handleCSVOption($input, 'regexps-exclude')
);

$files = $finder->findFiles();

if (empty($files)) {
$output->writeln('No files found to scan');
exit(0);
}

$progressBar = null;

if ($input->getOption('progress')) {
$progressBar = new ProgressBar($output, \count($files));
$progressBar->start();
}

$strategy = new DefaultStrategy;
$detector = new Detector($strategy, $progressBar);
$quiet = $output->getVerbosity() == OutputInterface::VERBOSITY_QUIET;

$clones = $detector->copyPasteDetection(
$files,
$input->getOption('min-lines'),
$input->getOption('min-tokens'),
$input->getOption('fuzzy')
);

if ($input->getOption('progress')) {
$progressBar->finish();
$output->writeln("\n");
}

if (!$quiet) {
$printer = new Text;
$printer->printResult($output, $clones);
unset($printer);
}

$logPmd = $input->getOption('log-pmd');

if ($logPmd) {
$pmd = new PMD($logPmd);
$pmd->processClones($clones);
unset($pmd);
}

if (!$quiet) {
print \PHP_Timer::resourceUsage() . "\n";
}

if (\count($clones) > 0) {
exit(1);
}
}

/**
* @param \Symfony\Component\Console\Input\InputInterface $input
* @param string $option
*
* @return array
*/
private function handleCSVOption(InputInterface $input, $option)
{
$result = $input->getOption($option);

if (!\is_array($result)) {
$result = \explode(',', $result);
\array_map('trim', $result);
}

return $result;
}
}