FEATURE: add translation command into Artisan

app/Console/Commands/TranslateAll.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace App\Console\Commands;
+
+use Illuminate\Console\Command;
+use Illuminate\Support\Facades\File;
+
+class TranslateAll extends Command
+{
+    /**
+     * The name and signature of the console command.
+     * @var string
+     */
+    protected $signature = 'translate:all';
+    /**
+     * The console command description.
+     * @var string
+     */
+    protected $description = 'Checks for missing translations in all modules.';
+
+    /**
+     * Create a new command instance.
+     * @return void
+     */
+    public function __construct()
+    {
+        parent::__construct();
+    }
+
+    /**
+     * Execute the console command.
+     * @return mixed
+     */
+    public function handle()
+    {
+        $this->call('translate:dir', ['dir' => 'resources/lang']);
+        
+        $modules = File::directories('modules');
+        foreach ($modules as $module) {
+            $this->call('translate:dir', ['dir' => $module.'/Resources/lang']);
+        }
+    }
+}

app/Console/Commands/Translations.php

@@ -0,0 +1,198 @@
+<?php
+
+namespace App\Console\Commands;
+
+use Illuminate\Console\Command;
+use Illuminate\Support\Facades\File;
+use Illuminate\Support\Str;
+
+class Translations extends Command
+{
+    /**
+     * The name and signature of the console command.
+     * @var string
+     */
+    protected $signature = 'translate:dir {dir}';
+    /**
+     * The console command description.
+     * @var string
+     */
+    protected $description = 'Checks for missing translations in given directory.';
+    /**
+     * @var array All translations
+     */
+    protected $translations = [];
+
+    /**
+     * Execute the console command.
+     * @return mixed
+     */
+    public function handle()
+    {
+        $dir = rtrim($this->argument('dir'), '/');
+        $defaultLocales = config('app.fallback_locale');
+        $currentLocales = config('app.locale');
+
+        $defaultLocalesDir = $dir . '/' . $defaultLocales;
+        $currentLocalesDir = $dir . '/' . $currentLocales;
+
+        $this->compareTranslationsInDirectory($defaultLocalesDir, $currentLocalesDir);
+    }
+
+    /**
+     * Crawl given defaul directory and compare all files in default and current directory.
+     *
+     * @param $defaultDir string path to directory with default (fallback) locales
+     * @param $currentDir string path to directory with currently selected localse
+     */
+    private function compareTranslationsInDirectory($defaultDir, $currentDir)
+    {
+        $files = File::files($defaultDir);
+        foreach ($files as $file) {
+            if (!Str::endsWith($file, '.php')) {
+                continue;
+            }
+
+            $fileName = basename($file);
+            $default = include($file);
+            $checked = file_exists($currentDir . '/' . $fileName) ? include $currentDir . '/' . $fileName : [];
+            $this->translations = &$checked;
+            
+            $this->checkForMissingTranslations($default, $checked, $currentDir, $fileName);
+        }
+
+        // iterate over directories
+        $this->crawlSubdirectories($defaultDir, $currentDir);
+    }
+
+    /**
+     * Check translations and ask for missing ones.
+     *
+     * @param $default
+     * @param $checked
+     * @param $currentLocalesDir
+     * @param $fileName
+     */
+    private function checkForMissingTranslations($default, &$checked, $currentLocalesDir, $fileName)
+    {
+        foreach ($default as $key => $translation) {
+            if (!isset($checked[$key])) {
+                // translate only plain text fields
+                if (is_array($default[$key])) {
+
+                    if (!isset($checked[$key])) {
+                        $checked[$key] = [];
+                    }
+
+                    $this->checkForMissingTranslations($default[$key], $checked[$key], $currentLocalesDir, $fileName);
+                    continue;
+                }
+
+                $this->info($fileName . ':' . $key);
+                $this->line($translation);
+                $newTranslation = $this->ask('Translate');
+
+                $checked[$key] = $newTranslation;
+                $this->saveTranslation($currentLocalesDir, $fileName);
+            }
+        }
+    }
+
+    /**
+     * Create new/reset file and fill it with translations
+     *
+     * @param $checked
+     * @param $dir
+     * @param $fileName
+     */
+    private function saveTranslation($dir, $fileName)
+    {
+        $file = $dir . '/' . $fileName;
+
+        $this->resetFile($file);
+        $this->writeRow('<?php', null, $file, false);
+        $this->writeRow('return [', null, $file, false);
+
+        // write real translation data
+        $this->writeTranslations($this->translations, $dir, $fileName);
+
+        $this->writeRow('];', '', $file, false);
+    }
+
+    /**
+     * Write translation as PHP array
+     *
+     * @param $checked
+     * @param $dir
+     * @param $fileName
+     */
+    private function writeTranslations($checked, $dir, $fileName)
+    {
+        $file = $dir . '/' . $fileName;
+
+        ksort($checked);
+
+        foreach ($checked as $key => $value) {
+            if (is_array($value)) {
+                $this->writeRow($key, '[', $file, false);
+                $this->writeTranslations($value, $dir, $fileName);
+                $this->writeRow('],', null, $file, false);
+            } else {
+                $this->writeRow($key, $value, $file);
+            }
+        }
+    }
+
+    /**
+     * Resets content of given file
+     *
+     * @param $file
+     */
+    private function resetFile($file)
+    {
+        file_put_contents($file, '');
+    }
+
+    /**
+     * Write row with translations
+     *
+     * @param      $key
+     * @param      $value
+     * @param      $file
+     * @param bool $arrayItem
+     */
+    private function writeRow($key, $value, $file, $arrayItem = true)
+    {
+        if ($value != null) {
+            if ($arrayItem) {
+                $value = strpos($value, '"') !== false ? '\'' . $value . '\'' : '"' . $value . '"';
+                $value .= ",\n";
+            }
+
+            file_put_contents($file, '"' . $key . '" => ' . $value, FILE_APPEND);
+        } else {
+            file_put_contents($file, $key . "\n", FILE_APPEND);
+        }
+    }
+
+    /**
+     * Crawl subdirectories and compare translations there
+     *
+     * @param $defaultDir
+     * @param $currentDir
+     */
+    private function crawlSubdirectories($defaultDir, $currentDir)
+    {
+        $directories = File::directories($defaultDir);
+
+        foreach ($directories as $directory) {
+            $dirname = basename($directory);
+
+            if (!is_dir($currentDir . '/' . $dirname)) {
+                File::makeDirectory($currentDir . '/' . $dirname);
+            }
+
+            $this->compareTranslationsInDirectory($directory, $currentDir . '/' . $dirname);
+        }
+    }
+}

app/Console/Kernel.php

@@ -17,7 +17,8 @@ class Kernel extends ConsoleKernel
         Commands\ChangePassword::class,
         Commands\InstallModule::class,
         Commands\InstallAllModules::class,
-//        Commands\SetupDatabase::class,
+        Commands\Translations::class,
+        Commands\TranslateAll::class,
         Commands\InitDatabaseSchema::class,
         Commands\SetTheme::class,
     ];