<?php

/**
 * @file
 * Tests for Entity translation module.
 */

/**
 * Base class for entity translation module tests.
 */
class EntityTranslationTestCase extends DrupalWebTestCase {

  protected $current_user;
  protected $admin_user;
  protected $translator_user;

  function setUp() {
    $args = func_get_args();
    call_user_func_array(array('parent', 'setUp'), $args);

    // Reset user fields to make test object reusable.
    unset($this->current_user);
    unset($this->admin_user);
    unset($this->translator_user);
  }

  /**
   * Retrieves a Drupal path or an absolute path with language.
   *
   * @param $language
   *   Language code or language object.
   */
  function get($language, $path = '', array $options = array(), array $headers = array()) {
    $options['language'] = $this->getLanguage($language);
    return $this->drupalGet($path, $options, $headers);
  }

  /**
   * Posts to a Drupal path with language.
   */
  function post($language, $path, $edit, $submit, array $options = array(), array $headers = array(), $form_html_id = NULL, $extra_post = NULL) {
    $options['language'] = $this->getLanguage($language);
    $this->drupalPost($path, $edit, $submit, $options, $headers, $form_html_id, $extra_post);
  }

  /**
   * Login the given user only if she has not changed.
   */
  function login($user) {
    if (!isset($this->current_user) || $this->current_user->uid != $user->uid) {
      $this->current_user = $user;
      $this->drupalLogin($user);
    }
  }

  /**
   * Returns a user with administration rights.
   *
   * @param $permissions
   *   Additional permissions for administrative user.
   */
  function getAdminUser(array $permissions = array()) {
    if (!isset($this->admin_user)) {
      $this->admin_user = $this->drupalCreateUser(array_merge(array(
        'bypass node access',
        'administer nodes',
        'administer languages',
        'administer content types',
        'administer blocks',
        'access administration pages',
        'administer site configuration',
      ), $permissions));
    }
    return $this->admin_user;
  }

  /**
   * Returns a user with minimal translation rights.
   *
   * @param $permissions
   *   Additional permissions for administrative user.
   */
  function getTranslatorUser(array $permissions = array()) {
    if (!isset($this->translator_user)) {
      $this->translator_user = $this->drupalCreateUser(array_merge(array(
        'create page content',
        'edit own page content',
        'delete own page content',
        'translate any entity',
      ), $permissions));
    }
    return $this->translator_user;
  }

  /**
   * Make sure the clean urls are enabled.
   */
  function enableCleanUrls() {
    $this->drupalGet('admin/config/search/clean-urls');
    $edit = array();
    $edit['clean_url'] = TRUE;
    $this->drupalPost(NULL, $edit, t('Save configuration'));
  }

  /**
   * Enable URL language detection.
   */
  function enableUrlLanguageDetection() {
    // Enable URL language detection and selection.
    $edit = array(
      'language[enabled][locale-url]' => TRUE,
      'language_content[enabled][locale-interface]' => TRUE
    );
    $this->drupalPost('admin/config/regional/language/configure', $edit, t('Save settings'));
    $this->assertRaw(t('Language negotiation configuration saved.'), t('URL language detection enabled.'));
    $this->drupalGet('admin/config/regional/language/configure');
    // Reset caches.
    drupal_static_reset('locale_url_outbound_alter');
    drupal_static_reset('language_list');
  }

  /**
   * Get a language object from a language code.
   */
  public function getLanguage($langcode) {
    if (is_object($langcode)) {
      return $langcode;
    }
    else {
      $language_list = language_list();
      return $language_list[$langcode];
    }
  }

  /**
   * Install a specified language if it has not been already, otherwise make sure that the language is enabled.
   *
   * @param $langcode
   *   The language code to check.
   */
  function addLanguage($langcode) {
    // Check to make sure that language has not already been installed.
    $this->drupalGet('admin/config/regional/language');

    if (strpos($this->drupalGetContent(), 'enabled[' . $langcode . ']') === FALSE) {
      // Doesn't have language installed so add it.
      $edit = array();
      $edit['langcode'] = $langcode;
      $this->drupalPost('admin/config/regional/language/add', $edit, t('Add language'));

      // Make sure we are not using a stale list.
      drupal_static_reset('language_list');
      $languages = language_list('language');
      $this->assertTrue(array_key_exists($langcode, $languages), t('Language was installed successfully.'));

      if (array_key_exists($langcode, $languages)) {
        $this->assertRaw(t('The language %language has been created and can now be used. More information is available on the <a href="@locale-help">help screen</a>.', array('%language' => $languages[$langcode]->name, '@locale-help' => url('admin/help/locale'))), t('Language has been created.'));
      }
    }
    elseif ($this->xpath('//input[@type="checkbox" and @name=:name and @checked="checked"]', array(':name' => 'enabled[' . $langcode . ']'))) {
      // It is installed and enabled. No need to do anything.
      $this->assertTrue(TRUE, 'Language [' . $langcode . '] already installed and enabled.');
    }
    else {
      // It is installed but not enabled. Enable it.
      $this->assertTrue(TRUE, 'Language [' . $langcode . '] already installed.');
      $this->drupalPost(NULL, array('enabled[' . $langcode . ']' => TRUE), t('Save configuration'));
      $this->assertRaw(t('Configuration saved.'), t('Language successfully enabled.'));
    }
  }

  /**
   * Configure the "Basic page" content type for entity translation tests.
   */
  function configureContentType() {
    // Configure the "Basic page" content type to use multilingual support with
    // translation.
    $edit = array();
    $edit['language_content_type'] = ENTITY_TRANSLATION_ENABLED;
    $this->drupalPost('admin/structure/types/manage/page', $edit, t('Save content type'));
    $this->assertRaw(t('The content type %type has been updated.', array('%type' => 'Basic page')), t('Basic page content type has been updated.'));

    // Set body field's cardinality to unlimited and toggle translatability.
    $edit = array();
    $edit['field[cardinality]'] = FIELD_CARDINALITY_UNLIMITED;
    $edit['field[translatable]'] = 1;
    $this->drupalPost('admin/structure/types/manage/page/fields/body', $edit, t('Save settings'));
    $this->assertRaw(t('Saved %field configuration.', array('%field' => 'Body')), t('Body field settings have been updated.'));

    // Check if the setting works.
    $this->drupalGet('node/add/page');
    $this->assertFieldById('edit-body-und-add-more', t('Add another item'), t('Add another item button found.'));
  }

  /**
   * Create a "Basic page" in the specified language.
   *
   * @param $title
   *   Title of the basic page in the specified language.
   * @param $body
   *   Body of the basic page in the specified language.
   * @param $langcode
   *   The language code to be assigned to the specified values.
   */
  function createPage($title, $body, $langcode) {
    $edit = array();
    $language_none = LANGUAGE_NONE;
    $edit["title"] = $title;
    $edit["body[$language_none][0][value]"] = $body;
    $edit['language'] = $langcode;
    $this->drupalPost('node/add/page', $edit, t('Save'));
    $this->assertRaw(t('Basic page %title has been created.', array('%title' => $title)), t('Basic page created.'));

    // Check to make sure the node was created.
    $node = $this->drupalGetNodeByTitle($title);
    $this->assertTrue($node, t('Node found in database.'));

    return $node;
  }

  /**
   * Create a translation.
   *
   * @param $node
   *   Node of the basic page to create translation for.
   * @param $title
   *   Title of the basic page in the specified language.
   * @param $body
   *   Body of the basic page in the specified language.
   * @param $langcode
   *   The language code to be assigned to the specified values.
   */
  function createTranslation($node, $title, $body, $langcode, $source_langcode = 'en') {
    $this->drupalGet('node/' . $node->nid . '/edit/add/' . $source_langcode . '/' . $langcode);

    $body_key = "body[$langcode][0][value]";
    $this->assertFieldByXPath("//textarea[@name='$body_key']", $node->body[$source_langcode][0]['value'], 'Original body value correctly populated.');
    $this->assertFieldById('edit-body-' . $langcode . '-add-more', t('Add another item'), t('Add another item button found.'));

    $edit = array();
    $edit[$body_key] = $body;

    $this->drupalPost(NULL, $edit, t('Save'));
    $this->drupalGet('node/' . $node->nid . '/translate');
    $this->assertLinkByHref('node/' . $node->nid . '/edit/' . $langcode, 0, t('Translation edit link found. Translation created.'));

    return $node;
  }
}

/**
 * Basic tests for the translation creation/editing workflow.
 */
class EntityTranslationTranslationTestCase extends EntityTranslationTestCase {

  /**
   * Return the test information.
   */
  public static function getInfo() {
    return array(
      'name' => 'Entity translation workflow',
      'description' => 'Basic tests for the translation creation/editing workflow.',
      'group' => 'Entity translation',
    );
  }

  function setUp() {
    parent::setUp('locale', 'entity_translation');
    $this->login($this->getAdminUser());
    $this->addLanguage('en');
    $this->addLanguage('es');
    $this->configureContentType();
    $this->login($this->getTranslatorUser());
  }

  /**
   * Test if field based translation works.
   *
   * Enable field based translation for basic pages. Add a field with a
   * cardinality higher than 1, to test if field_default_extract_form_values()
   * is invoked. Create a basic page and translate it.
   */
  function testFieldTranslation() {
    // Create Basic page in English.
    $node_title = $this->randomName();
    $node_body = $this->randomName();
    $node = $this->createPage($node_title, $node_body, 'en');

    // Submit translation in Spanish.
    $node_translation_title = $this->randomName();
    $node_translation_body = $this->randomName();
    $node_translation = $this->createTranslation($node, $node_translation_title, $node_translation_body, 'es');
  }
}

/**
 * Basic tests for comment related things.
 *
 * @todo Add tests for comment translation workflow.
 */
class EntityTranslationCommentTestCase extends EntityTranslationTestCase {

  protected $comment_user;

  /**
   * Return the test information.
   */
  public static function getInfo() {
    return array(
      'name' => 'Comment translation',
      'description' => 'Basic tests for comment translation/filtering.',
      'group' => 'Entity translation',
    );
  }

  function setUp() {
    parent::setUp('locale', 'entity_translation', 'comment');
    $this->login($this->getAdminUser());
    $this->addLanguage('en');
    $this->addLanguage('es');
    $this->enableUrlLanguageDetection();
    $this->configureContentType();
    $this->configureComments(FALSE);
    $this->login($this->getTranslatorUser());
  }

  function tearDown() {
    unset($this->comment_user);
    parent::tearDown();
  }

  function getCommentUser() {
    if (empty($this->comment_user)) {
      $this->comment_user = $this->drupalCreateUser(array(
        'access comments',
        'post comments',
        'edit own comments',
      ));
    }
    return $this->comment_user;
  }

  /**
   * Enable comments and comment filtering by language.
   */
  function configureComments($filter_by_language = TRUE) {
    $edit = array();
    $edit['comment'] = COMMENT_NODE_OPEN;
    $edit['entity_translation_comment_filter'] = $filter_by_language;
    $this->drupalPost('admin/structure/types/manage/page', $edit, t('Save content type'));
    $this->assertRaw(t('The content type %type has been updated.', array('%type' => 'Basic page')));

    $this->drupalGet('admin/structure/types/manage/page');
    if ($filter_by_language) {
      $this->assertFieldChecked('edit-entity-translation-comment-filter', 'Comment filtering is enabled.');
    }
    else {
      $this->assertNoFieldChecked('edit-entity-translation-comment-filter', 'Comment filtering is disabled.');
    }
  }

  /**
   * Add a comment for the given node.
   *
   * @param $node
   *   The node for which to add the comment.
   * @param $comment_body
   *   The comment body text.
   * @param $language
   *   The comment language.
   */
  function postComment($node, $comment_body, $language) {
    $edit = array();
    $edit['comment_body[' . LANGUAGE_NONE . '][0][value]'] = $comment_body;
    $this->post($language, 'comment/reply/' . $node->nid, $edit, t('Save'));
  }

  /**
   * Test comment filtering by language.
   */
  function testCommentLanguageFiltering() {
    $node = $this->createPage($this->randomName(), $this->randomName(), 'en');
    $this->login($this->getCommentUser());

    // Create comments in different languages.
    $comment_en = $this->randomName();
    $this->postComment($node, $comment_en, 'en');
    $comment_es = $this->randomName();
    $this->postComment($node, $comment_es, 'es');

    // Check that ALL comments are being displayed when comment language filter
    // is disabled (default behavior).
    $this->get('en', 'node/' . $node->nid);
    $this->assertText($comment_en, 'English comment found.');
    $this->assertText($comment_es, 'Spanish comment found.');

    // Enable comment filtering by language.
    $this->login($this->getAdminUser());
    $this->configureComments(TRUE);
    $this->login($this->getCommentUser());

    // Load page in different languages. Check that only comments matching
    // current language are being displayed.
    $this->get('en', 'node/' . $node->nid);
    $this->assertText($comment_en, 'English comment found.');
    $this->assertNoText($comment_es, 'Spanish comment not found.');

    $this->get('es', 'node/' . $node->nid);
    $this->assertNoText($comment_en, 'English comment not found.');
    $this->assertText($comment_es, 'Spanish comment found.');
  }
}

/**
 * Test CRUD hook invocation.
 */
class EntityTranslationHookTestCase extends EntityTranslationTestCase {

  /**
   * Return the test information.
   */
  public static function getInfo() {
    return array(
      'name' => 'Entity translation hooks',
      'description' => 'Test that entity translation hooks are properly fired.',
      'group' => 'Entity translation',
    );
  }

  function setUp() {
    parent::setUp('locale', 'entity_translation', 'entity_translation_test');
    $this->login($this->getAdminUser());
    $this->addLanguage('it');
    $this->addLanguage('es');
    $this->configureContentType();
    $this->login($this->getTranslatorUser());
  }

  /**
   * Test whether hooks are properly fired in the regular form workflow.
   */
  function testFormWorkflow() {
    // Create Basic page in English.
    $node_title = $this->randomName();
    $node_body = $this->randomName();
    $node = $this->createPage($node_title, $node_body, 'en');

    // Submit translation in Italian.
    $node_translation_body = $this->randomName();
    $this->createTranslation($node, NULL, $node_translation_body, 'it');
    $info = $this->getHookInfo();
    $this->assertTrue(!empty($info['insert']), t('Insert hook has been properly fired.'));

    // Edit translation in Italian.
    $edit = array("body[it][0][value]" => $this->randomName());
    $this->drupalPost('node/' . $node->nid . '/edit/it', $edit, t('Save'));
    $info = $this->getHookInfo();
    $this->assertTrue(!empty($info['update']), t('Update hook has been properly fired.'));

    // Delete the Basic page.
    $edit = array();
    $this->drupalPost('node/' . $node->nid . '/delete', $edit, t('Delete'));
    $info = $this->getHookInfo('delete');
    $this->assertTrue(count($info) == 2 && !empty($info['en']) && !empty($info['it']), t('Delete hook has been properly fired.'));
  }

  /**
   * Test whether hooks are properly fired when using the API.
   */
  function testAPI() {
    // Create Basic page in English.
    $node = $this->createPage($this->randomName(), $this->randomName(), 'en');
    $handler = entity_translation_get_handler('node', $node);

    // Create a translation in Italian.
    $translation = array('source' => 'en', 'language' => 'it');
    $handler->setTranslation($translation);
    $handler->saveTranslations();
    $node = node_load($node->nid, NULL, TRUE);
    $handler = entity_translation_get_handler('node', $node);
    $translations = $handler->getTranslations();
    $this->assertTrue(!empty($translations->data['it']), t('An Italian translation has been created'));
    $info = $this->getHookInfo();
    $this->assertTrue(!empty($info['insert']), t('Insert hook has been properly fired.'));

    // Check that the update hook is properly fired.
    $translation['status'] = 1;
    $handler->setTranslation($translation);
    $handler->saveTranslations();
    $info = $this->getHookInfo();
    $this->assertTrue(!empty($info['update']), t('Update hook has been properly fired.'));

    // Create a Spanish translation and update it before saving it.
    $translation = array('source' => 'it', 'language' => 'es');
    $handler->setTranslation($translation);
    $translation['status'] = 1;
    $handler->setTranslation($translation);
    $handler->saveTranslations();
    $node = node_load($node->nid, NULL, TRUE);
    $handler = entity_translation_get_handler('node', $node);
    $translations = $handler->getTranslations();
    $this->assertTrue(!empty($translations->data['es']), t('A Spanish translation has been created'));
    $info = $this->getHookInfo();
    $this->assertTrue(!empty($info['insert']), t('Insert hook has been properly fired.'));

    // Delete a translation after updating it without saving.
    $translation['status'] = 0;
    $handler->setTranslation($translation);
    $handler->removeTranslation('es');
    $handler->saveTranslations();
    $info = $this->getHookInfo();
    $this->assertTrue(empty($info['update']), t('Update hook has not been fired.'));
    $info = $this->getHookInfo('delete');
    $this->assertTrue(!empty($info['es']), t('Delete hook has been properly fired.'));
  }

  /**
   * Retrieve the information stored by hook implementations.
   */
  protected function getHookInfo($op = 'save') {
    $name = 'entity_translation_test_' . $op;
    $info = variable_get($name);
    variable_del($name);
    return $info;
  }
}