class LocaleContentTest

class LocaleContentTest extends BrowserTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'node',
        'locale',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Verifies that machine name fields are always LTR.
     */
    public function testMachineNameLTR() : void {
        // User to add and remove language.
        $admin_user = $this->drupalCreateUser([
            'administer languages',
            'administer content types',
            'access administration pages',
            'administer site configuration',
        ]);
        // Log in as admin.
        $this->drupalLogin($admin_user);
        // Verify that the machine name field is LTR for a new content type.
        $this->drupalGet('admin/structure/types/add');
        $type = $this->assertSession()
            ->fieldExists('type');
        $this->assertSame('ltr', $type->getAttribute('dir'));
        // Install the Arabic language (which is RTL) and configure as the default.
        $edit = [];
        $edit['predefined_langcode'] = 'ar';
        $this->drupalGet('admin/config/regional/language/add');
        $this->submitForm($edit, 'Add language');
        $edit = [
            'site_default_language' => 'ar',
        ];
        $this->drupalGet('admin/config/regional/language');
        $this->submitForm($edit, 'Save configuration');
        // Verify that the machine name field is still LTR for a new content type.
        $this->drupalGet('admin/structure/types/add');
        $type = $this->assertSession()
            ->fieldExists('type');
        $this->assertSame('ltr', $type->getAttribute('dir'));
    }
    
    /**
     * Tests if a content type can be set to multilingual and language is present.
     */
    public function testContentTypeLanguageConfiguration() : void {
        $type1 = $this->drupalCreateContentType();
        $type2 = $this->drupalCreateContentType();
        // User to add and remove language.
        $admin_user = $this->drupalCreateUser([
            'administer languages',
            'administer content types',
            'access administration pages',
        ]);
        // User to create a node.
        $web_user = $this->drupalCreateUser([
            "create {$type1->id()} content",
            "create {$type2->id()} content",
            "edit any {$type2->id()} content",
        ]);
        // Add custom language.
        $this->drupalLogin($admin_user);
        // Code for the language.
        $langcode = 'xx';
        // The English name for the language.
        $name = $this->randomMachineName(16);
        $edit = [
            'predefined_langcode' => 'custom',
            'langcode' => $langcode,
            'label' => $name,
            'direction' => LanguageInterface::DIRECTION_LTR,
        ];
        $this->drupalGet('admin/config/regional/language/add');
        $this->submitForm($edit, 'Add custom language');
        // Set the content type to use multilingual support.
        $this->drupalGet("admin/structure/types/manage/{$type2->id()}");
        $this->assertSession()
            ->pageTextContains('Language settings');
        $edit = [
            'language_configuration[language_alterable]' => TRUE,
        ];
        $this->drupalGet("admin/structure/types/manage/{$type2->id()}");
        $this->submitForm($edit, 'Save');
        $this->assertSession()
            ->pageTextContains("The content type {$type2->label()} has been updated.");
        $this->drupalLogout();
        \Drupal::languageManager()->reset();
        // Verify language selection is not present on the node add form.
        $this->drupalLogin($web_user);
        $this->drupalGet("node/add/{$type1->id()}");
        // Verify language select list is not present.
        $this->assertSession()
            ->fieldNotExists('langcode[0][value]');
        // Verify language selection appears on the node add form.
        $this->drupalGet("node/add/{$type2->id()}");
        // Verify language select list is present.
        $this->assertSession()
            ->fieldExists('langcode[0][value]');
        // Ensure language appears.
        $this->assertSession()
            ->pageTextContains($name);
        // Create a node.
        $node_title = $this->randomMachineName();
        $node_body = $this->randomMachineName();
        $edit = [
            'type' => $type2->id(),
            'title' => $node_title,
            'body' => [
                [
                    'value' => $node_body,
                ],
            ],
            'langcode' => $langcode,
        ];
        $node = $this->drupalCreateNode($edit);
        // Edit the content and ensure correct language is selected.
        $path = 'node/' . $node->id() . '/edit';
        $this->drupalGet($path);
        $this->assertSession()
            ->responseContains('<option value="' . $langcode . '" selected="selected">' . $name . '</option>');
        // Ensure we can change the node language.
        $edit = [
            'langcode[0][value]' => 'en',
        ];
        $this->drupalGet($path);
        $this->submitForm($edit, 'Save');
        $this->assertSession()
            ->pageTextContains($node_title . ' has been updated.');
        // Verify that the creation message contains a link to a node.
        $xpath = $this->assertSession()
            ->buildXPathQuery('//div[@data-drupal-messages]//a[contains(@href, :href)]', [
            ':href' => 'node/' . $node->id(),
        ]);
        $this->assertSession()
            ->elementExists('xpath', $xpath);
        $this->drupalLogout();
    }
    
    /**
     * Tests if a dir and lang tags exist in node's attributes.
     */
    public function testContentTypeDirLang() : void {
        $type = $this->drupalCreateContentType();
        // User to add and remove language.
        $admin_user = $this->drupalCreateUser([
            'administer languages',
            'administer content types',
            'access administration pages',
        ]);
        // User to create a node.
        $web_user = $this->drupalCreateUser([
            "create {$type->id()} content",
            "edit own {$type->id()} content",
        ]);
        // Log in as admin.
        $this->drupalLogin($admin_user);
        // Install Arabic language.
        $edit = [];
        $edit['predefined_langcode'] = 'ar';
        $this->drupalGet('admin/config/regional/language/add');
        $this->submitForm($edit, 'Add language');
        // Install Spanish language.
        $edit = [];
        $edit['predefined_langcode'] = 'es';
        $this->drupalGet('admin/config/regional/language/add');
        $this->submitForm($edit, 'Add language');
        \Drupal::languageManager()->reset();
        // Set the content type to use multilingual support.
        $this->drupalGet("admin/structure/types/manage/{$type->id()}");
        $edit = [
            'language_configuration[language_alterable]' => TRUE,
        ];
        $this->drupalGet("admin/structure/types/manage/{$type->id()}");
        $this->submitForm($edit, 'Save');
        $this->assertSession()
            ->pageTextContains("The content type {$type->label()} has been updated.");
        $this->drupalLogout();
        // Log in as web user to add new node.
        $this->drupalLogin($web_user);
        // Create three nodes: English, Arabic and Spanish.
        $nodes = [];
        foreach ([
            'en',
            'es',
            'ar',
        ] as $langcode) {
            $nodes[$langcode] = $this->drupalCreateNode([
                'langcode' => $langcode,
                'type' => $type->id(),
                'promote' => NodeInterface::PROMOTED,
            ]);
        }
        // Check if English node does not have lang tag.
        $this->drupalGet('node/' . $nodes['en']->id());
        $element = $this->cssSelect('article[lang="en"]');
        $this->assertEmpty($element, 'The lang tag has not been assigned to the English node.');
        // Check if English node does not have dir tag.
        $element = $this->cssSelect('article[dir="ltr"]');
        $this->assertEmpty($element, 'The dir tag has not been assigned to the English node.');
        // Check if Arabic node has lang="ar" & dir="rtl" tags.
        $this->drupalGet('node/' . $nodes['ar']->id());
        $element = $this->cssSelect('article[lang="ar"][dir="rtl"]');
        $this->assertNotEmpty($element, 'The lang and dir tags have been assigned correctly to the Arabic node.');
        // Check if Spanish node has lang="es" tag.
        $this->drupalGet('node/' . $nodes['es']->id());
        $element = $this->cssSelect('article[lang="es"]');
        $this->assertNotEmpty($element, 'The lang tag has been assigned correctly to the Spanish node.');
        // Check if Spanish node does not have dir="ltr" tag.
        $element = $this->cssSelect('article[lang="es"][dir="ltr"]');
        $this->assertEmpty($element, 'The dir tag has not been assigned to the Spanish node.');
    }

}