#!/usr/bin/env php

<?php

/*

 * Coding Standards (a.k.a. CS)

 *

 * This script is designed to clean up the source files and thus follow coding

 * conventions.

 *

 * @see http://symfony.com/doc/2.0/contributing/code/standards.html

 *

 */

require_once __DIR__.'/autoload.php.dist';

use Symfony\Component\Finder\Finder;

$fix = isset($argv[1]) && 'fix' == $argv[1];

$finder = new Finder();

$finder

    ->files()

    ->name('*.md')

    ->name('*.php')

    ->name('*.php.dist')

    ->name('*.twig')

    ->name('*.xml')

    ->name('*.xml.dist')

    ->name('*.yml')

    ->in(array(__DIR__.'/src', __DIR__.'/tests'))

    ->notName(basename(__FILE__))

    ->exclude('.git')

    ->exclude('vendor')

;

$count = 0;

foreach ($finder as $file) {

    /* @var $file Symfony\Component\Finder\SplFileInfo */

    // These files are skipped because tests would break

    foreach(array(

        'tests/Symfony/Tests/Component/ClassLoader/ClassCollectionLoaderTest.php',

        'tests/Symfony/Tests/Component/DependencyInjection/Fixtures/containers/container9.php',

        'tests/Symfony/Tests/Component/DependencyInjection/Fixtures/includes/foo.php',

        'tests/Symfony/Tests/Component/DependencyInjection/Fixtures/php/services9.php',

        'tests/Symfony/Tests/Component/DependencyInjection/Fixtures/yaml/services9.yml',

        'tests/Symfony/Tests/Component/Routing/Fixtures/dumper/url_matcher1.php',

        'tests/Symfony/Tests/Component/Routing/Fixtures/dumper/url_matcher2.php',

        'tests/Symfony/Tests/Component/Yaml/Fixtures/sfTests.yml',

    ) as $skippedFile) {

        if ($skippedFile === substr($file->getRealPath(), strlen($skippedFile) * -1)) {

            continue(2);

        }

    }

    $old = file_get_contents($file->getRealpath());

    $new = $old;

    // [Structure] Never use short tags (<?)

    $new = str_replace('<? ', '<?php ', $new);

    // [Structure] Indentation is done by steps of four spaces (tabs are never allowed)

    $new = preg_replace_callback('/^( *)(\t+)/m', function ($matches) use ($new) {

        return $matches[1].str_repeat('    ', strlen($matches[2]));

    }, $new);

    // [Structure] Use the linefeed character (0x0A) to end lines

    $new = str_replace("\r\n", "\n", $new);

    // [Structure] Don't add trailing spaces at the end of lines

    $new = preg_replace('/[ \t]*$/m', '', $new);

    // [Structure] Add a blank line before return statements

    $new = preg_replace_callback('/(^.*$)\n(^ +return)/m', function ($match) {

        // don't add it if the previous line is ...

        if (

            preg_match('/\{$/m',   $match[1]) || // ... ending with an opening brace

            preg_match('/\:$/m',   $match[1]) || // ... ending with a colon (e.g. a case statement)

            preg_match('%^ *//%m', $match[1]) || // ... an inline comment

            preg_match('/^$/m',    $match[1])    // ... already blank

        ) {

            return $match[1]."\n".$match[2];

        }

        return $match[1]."\n\n".$match[2];

    }, $new);

    // [Structure] A file must always ends with a linefeed character

    if (strlen($new) && "\n" != substr($new, -1)) {

        $new .= "\n";

    }

    if ($new != $old) {

        $count++;

        if ($fix) {

            file_put_contents($file->getRealpath(), $new);

        }

        printf('%4d) %s'.PHP_EOL, $count, $file->getRelativePathname());

    }

}

exit($count ? 1 : 0);