class LocaleConfigSubscriberTest

class LocaleConfigSubscriberTest extends KernelTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'language',
        'locale',
        'system',
        'locale_test',
    ];
    
    /**
     * The configurable language manager used in this test.
     *
     * @var \Drupal\language\ConfigurableLanguageManagerInterface
     */
    protected $languageManager;
    
    /**
     * The configuration factory used in this test.
     *
     * @var \Drupal\Core\Config\ConfigFactoryInterface
     */
    protected $configFactory;
    
    /**
     * The string storage used in this test.
     *
     * @var \Drupal\locale\StringStorageInterface
     */
    protected $stringStorage;
    
    /**
     * The locale configuration manager used in this test.
     *
     * @var \Drupal\locale\LocaleConfigManager
     */
    protected $localeConfigManager;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->setUpDefaultLanguage();
        $this->installSchema('locale', [
            'locales_source',
            'locales_target',
            'locales_location',
        ]);
        $this->setupLanguages();
        $this->installConfig([
            'locale_test',
        ]);
        // Simulate this hook invoked which would happen if in a non-kernel test
        // or normal environment.
        // @see locale_modules_installed()
        // @see locale_system_update()
        locale_system_set_config_langcodes();
        $langcodes = array_keys(\Drupal::languageManager()->getLanguages());
        $names = Locale::config()->getComponentNames();
        Locale::config()->updateConfigTranslations($names, $langcodes);
        $this->configFactory = $this->container
            ->get('config.factory');
        $this->stringStorage = $this->container
            ->get('locale.storage');
        $this->localeConfigManager = $this->container
            ->get('locale.config_manager');
        $this->languageManager = $this->container
            ->get('language_manager');
        $this->setUpLocale();
    }
    
    /**
     * Sets up default language for this test.
     */
    protected function setUpDefaultLanguage() {
        // Keep the default English.
    }
    
    /**
     * Sets up languages needed for this test.
     */
    protected function setUpLanguages() {
        ConfigurableLanguage::createFromLangcode('de')->save();
    }
    
    /**
     * Sets up the locale storage strings to be in line with configuration.
     */
    protected function setUpLocale() {
        // Set up the locale database the same way we have in the config samples.
        $this->setUpNoTranslation('locale_test.no_translation', 'test', 'Test', 'de');
        $this->setUpTranslation('locale_test.translation', 'test', 'English test', 'German test', 'de');
        $this->setUpTranslation('locale_test.translation_multiple', 'test', 'English test', 'German test', 'de');
    }
    
    /**
     * Tests creating translations of shipped configuration.
     */
    public function testCreateTranslation() {
        $config_name = 'locale_test.no_translation';
        $this->saveLanguageOverride($config_name, 'test', 'Test (German)', 'de');
        $this->assertTranslation($config_name, 'Test (German)', 'de');
    }
    
    /**
     * Tests creating translations configuration with multi value settings.
     */
    public function testCreateTranslationMultiValue() {
        $config_name = 'locale_test.translation_multiple';
        $this->saveLanguageOverride($config_name, 'test_multiple', [
            'string' => 'String (German)',
            'another_string' => 'Another string (German)',
        ], 'de');
        $this->saveLanguageOverride($config_name, 'test_after_multiple', [
            'string' => 'After string (German)',
            'another_string' => 'After another string (German)',
        ], 'de');
        $strings = $this->stringStorage
            ->getTranslations([
            'type' => 'configuration',
            'name' => $config_name,
            'language' => 'de',
            'translated' => TRUE,
        ]);
        $this->assertCount(5, $strings);
    }
    
    /**
     * Tests importing community translations of shipped configuration.
     */
    public function testLocaleCreateTranslation() {
        $config_name = 'locale_test.no_translation';
        $this->saveLocaleTranslationData($config_name, 'test', 'Test', 'Test (German)', 'de');
        $this->assertTranslation($config_name, 'Test (German)', 'de', FALSE);
    }
    
    /**
     * Tests updating translations of shipped configuration.
     */
    public function testUpdateTranslation() {
        $config_name = 'locale_test.translation';
        $this->saveLanguageOverride($config_name, 'test', 'Updated German test', 'de');
        $this->assertTranslation($config_name, 'Updated German test', 'de');
    }
    
    /**
     * Tests updating community translations of shipped configuration.
     */
    public function testLocaleUpdateTranslation() {
        $config_name = 'locale_test.translation';
        $this->saveLocaleTranslationData($config_name, 'test', 'English test', 'Updated German test', 'de');
        $this->assertTranslation($config_name, 'Updated German test', 'de', FALSE);
    }
    
    /**
     * Tests deleting translations of shipped configuration.
     */
    public function testDeleteTranslation() {
        $config_name = 'locale_test.translation';
        $this->deleteLanguageOverride($config_name, 'test', 'English test', 'de');
        // Instead of deleting the translation, we need to keep a translation with
        // the source value and mark it as customized to prevent the deletion being
        // reverted by importing community translations.
        $this->assertTranslation($config_name, 'English test', 'de');
    }
    
    /**
     * Tests deleting community translations of shipped configuration.
     */
    public function testLocaleDeleteTranslation() {
        $config_name = 'locale_test.translation';
        $this->deleteLocaleTranslationData($config_name, 'test', 'English test', 'de');
        $this->assertNoTranslation($config_name, 'de');
    }
    
    /**
     * Sets up a configuration string without a translation.
     *
     * The actual configuration is already available by installing locale_test
     * module, as it is done in LocaleConfigSubscriberTest::setUp(). This sets up
     * the necessary source string and verifies that everything is as expected to
     * avoid false positives.
     *
     * @param string $config_name
     *   The configuration name.
     * @param string $key
     *   The configuration key.
     * @param string $source
     *   The source string.
     * @param string $langcode
     *   The language code.
     */
    protected function setUpNoTranslation($config_name, $key, $source, $langcode) {
        $this->localeConfigManager
            ->updateConfigTranslations([
            $config_name,
        ], [
            $langcode,
        ]);
        $this->assertNoConfigOverride($config_name, $key, $source, $langcode);
        $this->assertNoTranslation($config_name, $langcode);
    }
    
    /**
     * Sets up a configuration string with a translation.
     *
     * The actual configuration is already available by installing locale_test
     * module, as it is done in LocaleConfigSubscriberTest::setUp(). This sets up
     * the necessary source and translation strings and verifies that everything
     * is as expected to avoid false positives.
     *
     * @param string $config_name
     *   The configuration name.
     * @param string $key
     *   The configuration key.
     * @param string $source
     *   The source string.
     * @param string $translation
     *   The translation string.
     * @param string $langcode
     *   The language code.
     * @param bool $is_active
     *   Whether the update will affect the active configuration.
     */
    protected function setUpTranslation($config_name, $key, $source, $translation, $langcode, $is_active = FALSE) {
        // Create source and translation strings for the configuration value and add
        // the configuration name as a location. This would be performed by
        // locale_translate_batch_import() invoking
        // LocaleConfigManager::updateConfigTranslations() normally.
        $this->localeConfigManager
            ->reset();
        $this->localeConfigManager
            ->getStringTranslation($config_name, $langcode, $source, '')
            ->setString($translation)
            ->setCustomized(FALSE)
            ->save();
        $this->configFactory
            ->reset($config_name);
        $this->localeConfigManager
            ->reset();
        $this->localeConfigManager
            ->updateConfigTranslations([
            $config_name,
        ], [
            $langcode,
        ]);
        if ($is_active) {
            $this->assertActiveConfig($config_name, $key, $translation, $langcode);
        }
        else {
            $this->assertConfigOverride($config_name, $key, $translation, $langcode);
        }
        $this->assertTranslation($config_name, $translation, $langcode, FALSE);
    }
    
    /**
     * Saves a language override.
     *
     * This will invoke LocaleConfigSubscriber through the event dispatcher. To
     * make sure the configuration was persisted correctly, the configuration
     * value is checked. Because LocaleConfigSubscriber temporarily disables the
     * override state of the configuration factory we check that the correct value
     * is restored afterwards.
     *
     * @param string $config_name
     *   The configuration name.
     * @param string $key
     *   The configuration key.
     * @param string|array $value
     *   The configuration value to save.
     * @param string $langcode
     *   The language code.
     */
    protected function saveLanguageOverride($config_name, $key, $value, $langcode) {
        $translation_override = $this->languageManager
            ->getLanguageConfigOverride($langcode, $config_name);
        $translation_override->set($key, $value)
            ->save();
        $this->configFactory
            ->reset($config_name);
        $this->assertConfigOverride($config_name, $key, $value, $langcode);
    }
    
    /**
     * Saves translation data from locale module.
     *
     * This will invoke LocaleConfigSubscriber through the event dispatcher. To
     * make sure the configuration was persisted correctly, the configuration
     * value is checked. Because LocaleConfigSubscriber temporarily disables the
     * override state of the configuration factory we check that the correct value
     * is restored afterwards.
     *
     * @param string $config_name
     *   The configuration name.
     * @param string $key
     *   The configuration key.
     * @param string $source
     *   The source string.
     * @param string $translation
     *   The translation string to save.
     * @param string $langcode
     *   The language code.
     * @param bool $is_active
     *   Whether the update will affect the active configuration.
     */
    protected function saveLocaleTranslationData($config_name, $key, $source, $translation, $langcode, $is_active = FALSE) {
        $this->localeConfigManager
            ->reset();
        $this->localeConfigManager
            ->getStringTranslation($config_name, $langcode, $source, '')
            ->setString($translation)
            ->save();
        $this->localeConfigManager
            ->reset();
        $this->localeConfigManager
            ->updateConfigTranslations([
            $config_name,
        ], [
            $langcode,
        ]);
        $this->configFactory
            ->reset($config_name);
        if ($is_active) {
            $this->assertActiveConfig($config_name, $key, $translation, $langcode);
        }
        else {
            $this->assertConfigOverride($config_name, $key, $translation, $langcode);
        }
    }
    
    /**
     * Deletes a language override.
     *
     * This will invoke LocaleConfigSubscriber through the event dispatcher. To
     * make sure the configuration was persisted correctly, the configuration
     * value is checked. Because LocaleConfigSubscriber temporarily disables the
     * override state of the configuration factory we check that the correct value
     * is restored afterwards.
     *
     * @param string $config_name
     *   The configuration name.
     * @param string $key
     *   The configuration key.
     * @param string $source_value
     *   The source configuration value to verify the correct value is returned
     *   from the configuration factory after the deletion.
     * @param string $langcode
     *   The language code.
     */
    protected function deleteLanguageOverride($config_name, $key, $source_value, $langcode) {
        $translation_override = $this->languageManager
            ->getLanguageConfigOverride($langcode, $config_name);
        $translation_override->clear($key)
            ->save();
        $this->configFactory
            ->reset($config_name);
        $this->assertNoConfigOverride($config_name, $key, $source_value, $langcode);
    }
    
    /**
     * Deletes translation data from locale module.
     *
     * This will invoke LocaleConfigSubscriber through the event dispatcher. To
     * make sure the configuration was persisted correctly, the configuration
     * value is checked. Because LocaleConfigSubscriber temporarily disables the
     * override state of the configuration factory we check that the correct value
     * is restored afterwards.
     *
     * @param string $config_name
     *   The configuration name.
     * @param string $key
     *   The configuration key.
     * @param string $source_value
     *   The source configuration value to verify the correct value is returned
     *   from the configuration factory after the deletion.
     * @param string $langcode
     *   The language code.
     */
    protected function deleteLocaleTranslationData($config_name, $key, $source_value, $langcode) {
        $this->localeConfigManager
            ->getStringTranslation($config_name, $langcode, $source_value, '')
            ->delete();
        $this->localeConfigManager
            ->reset();
        $this->localeConfigManager
            ->updateConfigTranslations([
            $config_name,
        ], [
            $langcode,
        ]);
        $this->configFactory
            ->reset($config_name);
        $this->assertNoConfigOverride($config_name, $key, $source_value, $langcode);
    }
    
    /**
     * Ensures configuration override is not present anymore.
     *
     * @param string $config_name
     *   The configuration name.
     * @param string $langcode
     *   The language code.
     *
     * @internal
     */
    protected function assertNoConfigOverride(string $config_name, string $langcode) : void {
        $config_langcode = $this->configFactory
            ->getEditable($config_name)
            ->get('langcode');
        $override = $this->languageManager
            ->getLanguageConfigOverride($langcode, $config_name);
        $this->assertNotEquals($langcode, $config_langcode);
        $this->assertTrue($override->isNew());
    }
    
    /**
     * Ensures configuration was saved correctly.
     *
     * @param string $config_name
     *   The configuration name.
     * @param string $key
     *   The configuration key.
     * @param string|array $value
     *   The configuration value.
     * @param string $langcode
     *   The language code.
     *
     * @internal
     */
    protected function assertConfigOverride(string $config_name, string $key, $value, string $langcode) : void {
        $config_langcode = $this->configFactory
            ->getEditable($config_name)
            ->get('langcode');
        $override = $this->languageManager
            ->getLanguageConfigOverride($langcode, $config_name);
        $this->assertNotEquals($langcode, $config_langcode);
        $this->assertEquals($value, $override->get($key));
    }
    
    /**
     * Ensures configuration was saved correctly.
     *
     * @param string $config_name
     *   The configuration name.
     * @param string $key
     *   The configuration key.
     * @param string $value
     *   The configuration value.
     * @param string $langcode
     *   The language code.
     *
     * @internal
     */
    protected function assertActiveConfig(string $config_name, string $key, string $value, string $langcode) : void {
        $config = $this->configFactory
            ->getEditable($config_name);
        $this->assertEquals($langcode, $config->get('langcode'));
        $this->assertSame($value, $config->get($key));
    }
    
    /**
     * Ensures no translation exists.
     *
     * @param string $config_name
     *   The configuration name.
     * @param string $langcode
     *   The language code.
     *
     * @internal
     */
    protected function assertNoTranslation(string $config_name, string $langcode) : void {
        $strings = $this->stringStorage
            ->getTranslations([
            'type' => 'configuration',
            'name' => $config_name,
            'language' => $langcode,
            'translated' => TRUE,
        ]);
        $this->assertSame([], $strings);
    }
    
    /**
     * Ensures a translation exists and is marked as customized.
     *
     * @param string $config_name
     *   The configuration name.
     * @param string|array $translation
     *   The translation.
     * @param string $langcode
     *   The language code.
     * @param bool $customized
     *   Whether or not the string should be asserted to be customized or not
     *   customized.
     *
     * @internal
     */
    protected function assertTranslation(string $config_name, $translation, string $langcode, bool $customized = TRUE) : void {
        // Make sure a string exists.
        $strings = $this->stringStorage
            ->getTranslations([
            'type' => 'configuration',
            'name' => $config_name,
            'language' => $langcode,
            'translated' => TRUE,
        ]);
        $this->assertCount(1, $strings);
        $string = reset($strings);
        $this->assertInstanceOf(StringInterface::class, $string);
        
        /** @var \Drupal\locale\StringInterface $string */
        $this->assertSame($translation, $string->getString());
        $this->assertTrue($string->isTranslation());
        $this->assertInstanceOf(TranslationString::class, $string);
        
        /** @var \Drupal\locale\TranslationString $string */
        // Make sure the string is marked as customized so that it does not get
        // overridden when the string translations are updated.
        $this->assertEquals($customized, (bool) $string->customized);
    }

}