<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Exception
 * @subpackage UnitTests
 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */

/**
 * @category   Zend
 * @package    Zend_resources
 * @subpackage UnitTests
 * @group      resources
 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class resources_languages_Zend_ValidateTest extends PHPUnit_Framework_TestCase
{

    protected $_langDir      = null;
    protected $_languages    = array();
    protected $_translations = array();

    public function setUp()
    {
        $this->_langDir = dirname(dirname(dirname(__DIR__)))
                        . DIRECTORY_SEPARATOR . 'resources' . DIRECTORY_SEPARATOR . 'languages';
        if (!is_readable($this->_langDir)) {
            throw new Exception('Language resource directory "'.$this->_langDir.'" not readable.');
        }

        // detect languages
        foreach (new DirectoryIterator($this->_langDir) as $entry) {
            if (!$entry->isDir()) {
                continue;
            }

            // skip "." or ".." or ".svn"
            $fname = $entry->getFilename();
            if ($fname[0] == '.') {
                continue;
            }

            // add all languages for testIsLocale
            $this->_languages[] = $fname;

            // include Zend_Validate translation tables
            $translationFile = $entry->getPathname() . DIRECTORY_SEPARATOR . 'Zend_Validate.php';
            if (file_exists($translationFile)) {
                $translation = include $translationFile;
                if (!is_array($translation)) {
                    $this->fail("Invalid or empty translation table found for language '{$fname}'");
                }

                $this->_translations[$fname] = $translation;
            }
        }
    }

    /**
     * Tests if the given language is really a language
     */
    public function testIsLocale()
    {
        foreach ($this->_languages as $lang) {
            if (!Zend_Locale::isLocale($lang, true, false)) {
                $this->fail("Language directory '{$lang}' not a valid locale");
            }
        }
    }

    /**
     * Tests if all english original keys have the same translations
     */
    public function testEnglishKeySameAsValue()
    {
        $errors = array();
        $cnt    = 0;
        foreach ($this->_translations['en'] as $key => $value) {
            if ($key !== $value) {
                ++$cnt;
                $errors['en ' . $cnt] = "The key $key is not identical in the english original";
            }
        }

        if (!empty($errors)) {
            $this->fail(var_export($errors, true));
        }
    }

    /**
     * Tests if all translation keys are also available in the english original
     */
    public function testTranslationAvailableInEnglish()
    {
        $errors = array();
        $cnt    = 0;
        foreach ($this->_translations as $lang => $translation) {
            if ($lang == 'en') {
                continue;
            }

            foreach ($translation as $key => $value) {
                if (!isset($this->_translations['en'][$key])) {
                    ++$cnt;
                    $errors[$lang . ' ' . $cnt] = "The key \"" . $key . "\" isn't available within english translation file";
                }
            }
        }

        if (!empty($errors)) {
            $this->fail(var_export($errors, true));
        }
    }

    /**
     * Tests if the key is translated
     */
    public function testTranslationDiffersFromEnglish()
    {
        $errors = array();
        $cnt    = 0;
        foreach ($this->_translations as $lang => $translation) {
            if ($lang == 'en') {
                continue;
            }

            foreach ($translation as $key => $value) {
                if ($key == $value) {
                    ++$cnt;
                    $errors[$lang . ' ' . $cnt] = "The translated message \"" . $value . "\" is the same the english version";
                }
            }
        }

        if (!empty($errors)) {
            $this->fail(var_export($errors, true));
        }
    }

    /**
     * Tests if all placeholders from the original are also available within the translation
     */
    public function testPlaceholder()
    {
        $errors = array();
        $cnt    = 0;
        foreach ($this->_translations as $lang => $translation) {
            if ($lang == 'en') { // not needed to test - see testEnglishKeySameAsValue
                continue;
            }

            foreach ($translation as $key => $value) {
                if (preg_match_all('/(\%.+\%)/U', $key, $matches, PREG_SET_ORDER)) {
                    foreach ($matches as $match) {
                        if (!strpos($value, $match[1])) {
                            ++$cnt;
                            $errors[$lang . ' ' . $cnt] = "Missing placeholder \"" . $match[1] . "\" within \"" . $value . "\"";
                        }
                    }
                }
            }
        }

        if (!empty($errors)) {
            $this->fail(var_export($errors, true));
        }
    }

    /**
     * Tests if all english originals are translated
     */
    public function testAllTranslated()
    {
        $errors = array();
        $cnt    = 0;
        foreach ($this->_translations as $lang => $translation) {
            foreach ($this->_translations['en'] as $key => $value) {
                if ($lang == 'en') {
                    continue;
                }

                if (!isset($translation[$key])) {
                    ++$cnt;
                    $errors[$lang . ' ' . $cnt] = "Message \"" . $key . "\" not translated";
                }
            }
        }

        if (!empty($errors)) {
            $this->fail(var_export($errors, true));
        }
    }
}