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✏️ Editing: LocalizationFinder.php

<?php

declare(strict_types=1);

/**
 * This file is part of CodeIgniter 4 framework.
 *
 * (c) CodeIgniter Foundation <admin@codeigniter.com>
 *
 * For the full copyright and license information, please view
 * the LICENSE file that was distributed with this source code.
 */

namespace CodeIgniter\Commands\Translation;

use CodeIgniter\CLI\BaseCommand;
use CodeIgniter\CLI\CLI;
use CodeIgniter\Helpers\Array\ArrayHelper;
use Config\App;
use Locale;
use RecursiveDirectoryIterator;
use RecursiveIteratorIterator;
use SplFileInfo;

/**
 * @see \CodeIgniter\Commands\Translation\LocalizationFinderTest
 */
class LocalizationFinder extends BaseCommand
{
    protected $group       = 'Translation';
    protected $name        = 'lang:find';
    protected $description = 'Find and save available phrases to translate.';
    protected $usage       = 'lang:find [options]';
    protected $arguments   = [];
    protected $options     = [
        '--locale'   => 'Specify locale (en, ru, etc.) to save files.',
        '--dir'      => 'Directory to search for translations relative to APPPATH.',
        '--show-new' => 'Show only new translations in table. Does not write to files.',
        '--verbose'  => 'Output detailed information.',
    ];

/**
     * Flag for output detailed information
     */
    private bool $verbose = false;

/**
     * Flag for showing only translations, without saving
     */
    private bool $showNew = false;

private string $languagePath;

public function run(array $params)
    {
        $this->verbose      = array_key_exists('verbose', $params);
        $this->showNew      = array_key_exists('show-new', $params);
        $optionLocale       = $params['locale'] ?? null;
        $optionDir          = $params['dir'] ?? null;
        $currentLocale      = Locale::getDefault();
        $currentDir         = APPPATH;
        $this->languagePath = $currentDir . 'Language';

if (ENVIRONMENT === 'testing') {
            $currentDir         = SUPPORTPATH . 'Services' . DIRECTORY_SEPARATOR;
            $this->languagePath = SUPPORTPATH . 'Language';
        }

if (is_string($optionLocale)) {
            if (! in_array($optionLocale, config(App::class)->supportedLocales, true)) {
                CLI::error(
                    'Error: "' . $optionLocale . '" is not supported. Supported locales: '
                    . implode(', ', config(App::class)->supportedLocales)
                );

return EXIT_USER_INPUT;
            }

$currentLocale = $optionLocale;
        }

if (is_string($optionDir)) {
            $tempCurrentDir = realpath($currentDir . $optionDir);

if ($tempCurrentDir === false) {
                CLI::error('Error: Directory must be located in "' . $currentDir . '"');

return EXIT_USER_INPUT;
            }

if ($this->isSubDirectory($tempCurrentDir, $this->languagePath)) {
                CLI::error('Error: Directory "' . $this->languagePath . '" restricted to scan.');

return EXIT_USER_INPUT;
            }

$currentDir = $tempCurrentDir;
        }

$this->process($currentDir, $currentLocale);

CLI::write('All operations done!');

return EXIT_SUCCESS;
    }

private function process(string $currentDir, string $currentLocale): void
    {
        $tableRows    = [];
        $countNewKeys = 0;

$iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($currentDir));
        $files    = iterator_to_array($iterator, true);
        ksort($files);

[
            'foundLanguageKeys' => $foundLanguageKeys,
            'badLanguageKeys'   => $badLanguageKeys,
            'countFiles'        => $countFiles
        ] = $this->findLanguageKeysInFiles($files);

ksort($foundLanguageKeys);

$languageDiff        = [];
        $languageFoundGroups = array_unique(array_keys($foundLanguageKeys));

foreach ($languageFoundGroups as $langFileName) {
            $languageStoredKeys = [];
            $languageFilePath   = $this->languagePath . DIRECTORY_SEPARATOR . $currentLocale . DIRECTORY_SEPARATOR . $langFileName . '.php';

if (is_file($languageFilePath)) {
                // Load old localization
                $languageStoredKeys = require $languageFilePath;
            }

$languageDiff = ArrayHelper::recursiveDiff($foundLanguageKeys[$langFileName], $languageStoredKeys);
            $countNewKeys += ArrayHelper::recursiveCount($languageDiff);

if ($this->showNew) {
                $tableRows = array_merge($this->arrayToTableRows($langFileName, $languageDiff), $tableRows);
            } else {
                $newLanguageKeys = array_replace_recursive($foundLanguageKeys[$langFileName], $languageStoredKeys);

if ($languageDiff !== []) {
                    if (file_put_contents($languageFilePath, $this->templateFile($newLanguageKeys)) === false) {
                        $this->writeIsVerbose('Lang file ' . $langFileName . ' (error write).', 'red');
                    } else {
                        $this->writeIsVerbose('Lang file "' . $langFileName . '" successful updated!', 'green');
                    }
                }
            }
        }

if ($this->showNew && $tableRows !== []) {
            sort($tableRows);
            CLI::table($tableRows, ['File', 'Key']);
        }

if (! $this->showNew && $countNewKeys > 0) {
            CLI::write('Note: You need to run your linting tool to fix coding standards issues.', 'white', 'red');
        }

$this->writeIsVerbose('Files found: ' . $countFiles);
        $this->writeIsVerbose('New translates found: ' . $countNewKeys);
        $this->writeIsVerbose('Bad translates found: ' . count($badLanguageKeys));

if ($this->verbose && $badLanguageKeys !== []) {
            $tableBadRows = [];

foreach ($badLanguageKeys as $value) {
                $tableBadRows[] = [$value[1], $value[0]];
            }

ArrayHelper::sortValuesByNatural($tableBadRows, 0);

CLI::table($tableBadRows, ['Bad Key', 'Filepath']);
        }
    }

/**
     * @param SplFileInfo|string $file
     *
     * @return array<string, array>
     */
    private function findTranslationsInFile($file): array
    {
        $foundLanguageKeys = [];
        $badLanguageKeys   = [];

if (is_string($file) && is_file($file)) {
            $file = new SplFileInfo($file);
        }

$fileContent = file_get_contents($file->getRealPath());
        preg_match_all('/lang\(\'([._a-z0-9\-]+)\'\)/ui', $fileContent, $matches);

if ($matches[1] === []) {
            return compact('foundLanguageKeys', 'badLanguageKeys');
        }

foreach ($matches[1] as $phraseKey) {
            $phraseKeys = explode('.', $phraseKey);

// Language key not have Filename or Lang key
            if (count($phraseKeys) < 2) {
                $badLanguageKeys[] = [mb_substr($file->getRealPath(), mb_strlen(ROOTPATH)), $phraseKey];

continue;
            }

$languageFileName   = array_shift($phraseKeys);
            $isEmptyNestedArray = ($languageFileName !== '' && $phraseKeys[0] === '')
                || ($languageFileName === '' && $phraseKeys[0] !== '')
                || ($languageFileName === '' && $phraseKeys[0] === '');

if ($isEmptyNestedArray) {
                $badLanguageKeys[] = [mb_substr($file->getRealPath(), mb_strlen(ROOTPATH)), $phraseKey];

continue;
            }

if (count($phraseKeys) === 1) {
                $foundLanguageKeys[$languageFileName][$phraseKeys[0]] = $phraseKey;
            } else {
                $childKeys = $this->buildMultiArray($phraseKeys, $phraseKey);

$foundLanguageKeys[$languageFileName] = array_replace_recursive($foundLanguageKeys[$languageFileName] ?? [], $childKeys);
            }
        }

return compact('foundLanguageKeys', 'badLanguageKeys');
    }

private function isIgnoredFile(SplFileInfo $file): bool
    {
        if ($file->isDir() || $this->isSubDirectory($file->getRealPath(), $this->languagePath)) {
            return true;
        }

return $file->getExtension() !== 'php';
    }

private function templateFile(array $language = []): string
    {
        if ($language !== []) {
            $languageArrayString = var_export($language, true);

$code = <<<PHP
                <?php

return {$languageArrayString};

PHP;

return $this->replaceArraySyntax($code);
        }

return <<<'PHP'
            <?php

return [];

PHP;
    }

private function replaceArraySyntax(string $code): string
    {
        $tokens    = token_get_all($code);
        $newTokens = $tokens;

foreach ($tokens as $i => $token) {
            if (is_array($token)) {
                [$tokenId, $tokenValue] = $token;

// Replace "array ("
                if (
                    $tokenId === T_ARRAY
                    && $tokens[$i + 1][0] === T_WHITESPACE
                    && $tokens[$i + 2] === '('
                ) {
                    $newTokens[$i][1]     = '[';
                    $newTokens[$i + 1][1] = '';
                    $newTokens[$i + 2]    = '';
                }

// Replace indent
                if ($tokenId === T_WHITESPACE && preg_match('/\n([ ]+)/u', $tokenValue, $matches)) {
                    $newTokens[$i][1] = "\n{$matches[1]}{$matches[1]}";
                }
            } // Replace ")"
            elseif ($token === ')') {
                $newTokens[$i] = ']';
            }
        }

$output = '';

foreach ($newTokens as $token) {
            $output .= $token[1] ?? $token;
        }

return $output;
    }

/**
     * Create multidimensional array from another keys
     */
    private function buildMultiArray(array $fromKeys, string $lastArrayValue = ''): array
    {
        $newArray  = [];
        $lastIndex = array_pop($fromKeys);
        $current   = &$newArray;

foreach ($fromKeys as $value) {
            $current[$value] = [];
            $current         = &$current[$value];
        }

$current[$lastIndex] = $lastArrayValue;

return $newArray;
    }

/**
     * Convert multi arrays to specific CLI table rows (flat array)
     */
    private function arrayToTableRows(string $langFileName, array $array): array
    {
        $rows = [];

foreach ($array as $value) {
            if (is_array($value)) {
                $rows = array_merge($rows, $this->arrayToTableRows($langFileName, $value));

continue;
            }

if (is_string($value)) {
                $rows[] = [$langFileName, $value];
            }
        }

return $rows;
    }

/**
     * Show details in the console if the flag is set
     */
    private function writeIsVerbose(string $text = '', ?string $foreground = null, ?string $background = null): void
    {
        if ($this->verbose) {
            CLI::write($text, $foreground, $background);
        }
    }

private function isSubDirectory(string $directory, string $rootDirectory): bool
    {
        return 0 === strncmp($directory, $rootDirectory, strlen($directory));
    }

/**
     * @param list<SplFileInfo> $files
     *
     * @return         array<string, array|int>
     * @phpstan-return array{'foundLanguageKeys': array<string, array<string, string>>, 'badLanguageKeys': array<int, array<int, string>>, 'countFiles': int}
     */
    private function findLanguageKeysInFiles(array $files): array
    {
        $foundLanguageKeys = [];
        $badLanguageKeys   = [];
        $countFiles        = 0;

foreach ($files as $file) {
            if ($this->isIgnoredFile($file)) {
                continue;
            }

$this->writeIsVerbose('File found: ' . mb_substr($file->getRealPath(), mb_strlen(APPPATH)));
            $countFiles++;

$findInFile = $this->findTranslationsInFile($file);

$foundLanguageKeys = array_replace_recursive($findInFile['foundLanguageKeys'], $foundLanguageKeys);
            $badLanguageKeys   = array_merge($findInFile['badLanguageKeys'], $badLanguageKeys);
        }

return compact('foundLanguageKeys', 'badLanguageKeys', 'countFiles');
    }
}