class HelpTopicSearchTest

class HelpTopicSearchTest extends HelpTopicTranslatedTestBase {
    use CronRunTrait;
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'search',
        'locale',
        'language',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        // Log in.
        $this->drupalLogin($this->createUser([
            'access administration pages',
            'administer site configuration',
            'view the administration theme',
            'administer permissions',
            'administer languages',
            'administer search',
            'access test help',
            'search content',
        ]));
        // Add English language and set to default.
        $this->drupalGet('admin/config/regional/language/add');
        $this->submitForm([
            'predefined_langcode' => 'en',
        ], 'Add language');
        $this->drupalGet('admin/config/regional/language');
        $this->submitForm([
            'site_default_language' => 'en',
        ], 'Save configuration');
        // When default language is changed, the container is rebuilt in the child
        // site, so a rebuild in the main site is required to use the new container
        // here.
        $this->rebuildContainer();
        // Before running cron, verify that a search returns no results and shows
        // warning.
        $this->drupalGet('search/help');
        $this->submitForm([
            'keys' => 'not-a-word-english',
        ], 'Search');
        $this->assertSearchResultsCount(0);
        $this->assertSession()
            ->statusMessageContains('Help search is not fully indexed', 'warning');
        // Run cron until the topics are fully indexed, with a limit of 100 runs
        // to avoid infinite loops.
        $num_runs = 100;
        $plugin = HelpSearch::create($this->container, [], 'help_search', []);
        do {
            $this->cronRun();
            $remaining = $plugin->indexStatus()['remaining'];
        } while (--$num_runs && $remaining);
        $this->assertNotEmpty($num_runs);
        $this->assertEmpty($remaining);
        // Visit the Search settings page and verify it says 100% indexed.
        $this->drupalGet('admin/config/search/pages');
        $this->assertSession()
            ->pageTextContains('100% of the site has been indexed');
        // Search and verify there is no warning.
        $this->drupalGet('search/help');
        $this->submitForm([
            'keys' => 'not-a-word-english',
        ], 'Search');
        $this->assertSearchResultsCount(1);
        $this->assertSession()
            ->statusMessageNotContains('Help search is not fully indexed');
    }
    
    /**
     * Tests help topic search.
     */
    public function testHelpSearch() {
        $german = \Drupal::languageManager()->getLanguage('de');
        $session = $this->assertSession();
        // Verify that when we search in English for a word that is only in
        // English text, we find the topic. Note that these "words" are provided
        // by the topics that come from
        // \Drupal\help_topics_test\Plugin\HelpSection\TestHelpSection.
        $this->drupalGet('search/help');
        $this->submitForm([
            'keys' => 'not-a-word-english',
        ], 'Search');
        $this->assertSearchResultsCount(1);
        $session->linkExists('Foo in English title wcsrefsdf');
        // Same for German.
        $this->drupalGet('search/help', [
            'language' => $german,
        ]);
        $this->submitForm([
            'keys' => 'not-a-word-german',
        ], 'Search');
        $this->assertSearchResultsCount(1);
        $session->linkExists('Foomm Foreign heading');
        // Verify when we search in English for a word that only exists in German,
        // we get no results.
        $this->drupalGet('search/help');
        $this->submitForm([
            'keys' => 'not-a-word-german',
        ], 'Search');
        $this->assertSearchResultsCount(0);
        $session->pageTextContains('no results');
        // Same for German.
        $this->drupalGet('search/help', [
            'language' => $german,
        ]);
        $this->submitForm([
            'keys' => 'not-a-word-english',
        ], 'Search');
        $this->assertSearchResultsCount(0);
        $session->pageTextContains('no results');
        // Verify when we search in English for a word that exists in one topic
        // in English and a different topic in German, we only get the one English
        // topic.
        $this->drupalGet('search/help');
        $this->submitForm([
            'keys' => 'sqruct',
        ], 'Search');
        $this->assertSearchResultsCount(1);
        $session->linkExists('Foo in English title wcsrefsdf');
        // Same for German.
        $this->drupalGet('search/help', [
            'language' => $german,
        ]);
        $this->submitForm([
            'keys' => 'asdrsad',
        ], 'Search');
        $this->assertSearchResultsCount(1);
        $session->linkExists('Foomm Foreign heading');
        // All of the above tests used the TestHelpSection plugin. Also verify
        // that we can search for translated regular help topics, in both English
        // and German.
        $this->drupalGet('search/help');
        $this->submitForm([
            'keys' => 'non-word-item',
        ], 'Search');
        $this->assertSearchResultsCount(1);
        $session->linkExists('ABC Help Test module');
        // Click the link and verify we ended up on the topic page.
        $this->clickLink('ABC Help Test module');
        $session->pageTextContains('This is a test');
        $this->drupalGet('search/help', [
            'language' => $german,
        ]);
        $this->submitForm([
            'keys' => 'non-word-german',
        ], 'Search');
        $this->assertSearchResultsCount(1);
        $session->linkExists('ABC-Hilfetestmodul');
        $this->clickLink('ABC-Hilfetestmodul');
        $session->pageTextContains('Übersetzung testen.');
        // Verify that we can search from the admin/help page.
        $this->drupalGet('admin/help');
        $session->pageTextContains('Search help');
        $this->submitForm([
            'keys' => 'non-word-item',
        ], 'Search');
        $this->assertSearchResultsCount(1);
        $session->linkExists('ABC Help Test module');
        // Same for German.
        $this->drupalGet('admin/help', [
            'language' => $german,
        ]);
        $this->submitForm([
            'keys' => 'non-word-german',
        ], 'Search');
        $this->assertSearchResultsCount(1);
        $session->linkExists('ABC-Hilfetestmodul');
        // Verify we can search for title text (other searches used text
        // that was part of the body).
        $this->drupalGet('search/help');
        $this->submitForm([
            'keys' => 'wcsrefsdf',
        ], 'Search');
        $this->assertSearchResultsCount(1);
        $session->linkExists('Foo in English title wcsrefsdf');
        $this->drupalGet('admin/help', [
            'language' => $german,
        ]);
        $this->submitForm([
            'keys' => 'sdeeeee',
        ], 'Search');
        $this->assertSearchResultsCount(1);
        $session->linkExists('Barmm Foreign sdeeeee');
        // Just changing the title and running cron is not enough to reindex so
        // 'sdeeeee' still hits a match. The content is updated because the help
        // topic is rendered each time.
        \Drupal::state()->set('help_topics_test:translated_title', 'Updated translated title');
        $this->cronRun();
        $this->drupalGet('admin/help', [
            'language' => $german,
        ]);
        $this->submitForm([
            'keys' => 'sdeeeee',
        ], 'Search');
        $this->assertSearchResultsCount(1);
        $session->linkExists('Updated translated title');
        // Searching for the updated test shouldn't produce a match.
        $this->drupalGet('admin/help', [
            'language' => $german,
        ]);
        $this->submitForm([
            'keys' => 'translated title',
        ], 'Search');
        $this->assertSearchResultsCount(0);
        // Clear the caches and re-run cron - this should re-index the help.
        $this->rebuildAll();
        $this->cronRun();
        $this->drupalGet('admin/help', [
            'language' => $german,
        ]);
        $this->submitForm([
            'keys' => 'sdeeeee',
        ], 'Search');
        $this->assertSearchResultsCount(0);
        $this->drupalGet('admin/help', [
            'language' => $german,
        ]);
        $this->submitForm([
            'keys' => 'translated title',
        ], 'Search');
        $this->assertSearchResultsCount(1);
        $session->linkExists('Updated translated title');
        // Verify the cache tags and contexts.
        $session->responseHeaderContains('X-Drupal-Cache-Tags', 'config:search.page.help_search');
        $session->responseHeaderContains('X-Drupal-Cache-Tags', 'search_index:help_search');
        $session->responseHeaderContains('X-Drupal-Cache-Contexts', 'user.permissions');
        $session->responseHeaderContains('X-Drupal-Cache-Contexts', 'languages:language_interface');
        // Log in as a user that does not have permission to see TestHelpSection
        // items, and verify they can still search for help topics but not see these
        // items.
        $this->drupalLogin($this->createUser([
            'access administration pages',
            'administer site configuration',
            'view the administration theme',
            'administer permissions',
            'administer languages',
            'administer search',
            'search content',
        ]));
        $this->drupalGet('admin/help');
        $session->pageTextContains('Search help');
        $this->drupalGet('search/help');
        $this->submitForm([
            'keys' => 'non-word-item',
        ], 'Search');
        $this->assertSearchResultsCount(1);
        $session->linkExists('ABC Help Test module');
        $this->drupalGet('search/help');
        $this->submitForm([
            'keys' => 'not-a-word-english',
        ], 'Search');
        $this->assertSearchResultsCount(0);
        $session->pageTextContains('no results');
        // Uninstall the test module and verify its topics are immediately not
        // searchable.
        \Drupal::service('module_installer')->uninstall([
            'help_topics_test',
        ]);
        $this->drupalGet('search/help');
        $this->submitForm([
            'keys' => 'non-word-item',
        ], 'Search');
        $this->assertSearchResultsCount(0);
    }
    
    /**
     * Tests uninstalling the help_topics module.
     */
    public function testUninstall() {
        \Drupal::service('module_installer')->uninstall([
            'help_topics_test',
        ]);
        // Ensure we can uninstall help_topics and use the help system without
        // breaking.
        $this->drupalLogin($this->rootUser);
        $edit = [];
        $edit['uninstall[help_topics]'] = TRUE;
        $this->drupalGet('admin/modules/uninstall');
        $this->submitForm($edit, 'Uninstall');
        $this->submitForm([], 'Uninstall');
        $this->assertSession()
            ->statusMessageContains('The selected modules have been uninstalled.', 'status');
        $this->drupalGet('admin/help');
        $this->assertSession()
            ->statusCodeEquals(200);
    }
    
    /**
     * Tests uninstalling the search module.
     */
    public function testUninstallSearch() {
        // Ensure we can uninstall search and use the help system without
        // breaking.
        $this->drupalLogin($this->rootUser);
        $edit = [];
        $edit['uninstall[search]'] = TRUE;
        $this->drupalGet('admin/modules/uninstall');
        $this->submitForm($edit, 'Uninstall');
        $this->submitForm([], 'Uninstall');
        $this->assertSession()
            ->statusMessageContains('The selected modules have been uninstalled.', 'status');
        $this->drupalGet('admin/help');
        $this->assertSession()
            ->statusCodeEquals(200);
        // Rebuild the container to reflect the latest changes.
        $this->rebuildContainer();
        $this->assertTrue(\Drupal::moduleHandler()->moduleExists('help_topics'), 'The help_topics module is still installed.');
        $this->assertFalse(\Drupal::moduleHandler()->moduleExists('search'), 'The search module is uninstalled.');
    }
    
    /**
     * Asserts that help search returned the expected number of results.
     *
     * @param int $count
     *   The expected number of search results.
     *
     * @internal
     */
    protected function assertSearchResultsCount(int $count) : void {
        $this->assertSession()
            ->elementsCount('css', '.help_search-results > li', $count);
    }

}