class EditorAdminTest

class EditorAdminTest extends BrowserTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'filter',
        'editor',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * A user with the 'administer filters' permission.
     *
     * @var \Drupal\user\UserInterface
     */
    protected $adminUser;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        // Add text format.
        $filtered_html_format = FilterFormat::create([
            'format' => 'filtered_html',
            'name' => 'Filtered HTML',
            'weight' => 0,
            'filters' => [],
        ]);
        $filtered_html_format->save();
        // Create admin user.
        $this->adminUser = $this->drupalCreateUser([
            'administer filters',
        ]);
    }
    
    /**
     * Tests an existing format without any editors available.
     */
    public function testNoEditorAvailable() : void {
        $this->drupalLogin($this->adminUser);
        $this->drupalGet('admin/config/content/formats/manage/filtered_html');
        // Ensure the form field order is correct.
        $raw_content = $this->getSession()
            ->getPage()
            ->getContent();
        $roles_pos = strpos($raw_content, 'Roles');
        $editor_pos = strpos($raw_content, 'Text editor');
        $filters_pos = strpos($raw_content, 'Enabled filters');
        $this->assertGreaterThan($roles_pos, $editor_pos);
        $this->assertLessThan($filters_pos, $editor_pos);
        // Verify the <select>.
        $select = $this->assertSession()
            ->selectExists('editor[editor]');
        $this->assertSame('disabled', $select->getAttribute('disabled'));
        $options = $select->findAll('css', 'option');
        $this->assertCount(1, $options);
        $this->assertSame('None', $options[0]->getText(), 'Option 1 in the Text Editor select is "None".');
        $this->assertSession()
            ->pageTextContains('This option is disabled because no modules that provide a text editor are currently enabled.');
    }
    
    /**
     * Tests adding a text editor to an existing text format.
     */
    public function testAddEditorToExistingFormat() : void {
        $this->enableUnicornEditor();
        $this->drupalLogin($this->adminUser);
        $this->drupalGet('admin/config/content/formats/manage/filtered_html');
        $edit = $this->selectUnicornEditor();
        // Configure Unicorn Editor's setting to another value.
        $edit['editor[settings][ponies_too]'] = FALSE;
        $this->submitForm($edit, 'Save configuration');
        $this->verifyUnicornEditorConfiguration('filtered_html', FALSE);
        // Switch back to 'None' and check the Unicorn Editor's settings are gone.
        $edit = [
            'editor[editor]' => '',
        ];
        $this->submitForm($edit, 'Configure');
        $this->assertSession()
            ->fieldNotExists('editor[settings][ponies_too]');
    }
    
    /**
     * Tests adding a text editor to a new text format.
     */
    public function testAddEditorToNewFormat() : void {
        $this->addEditorToNewFormat('monoceros', 'Monoceros');
        $this->verifyUnicornEditorConfiguration('monoceros');
    }
    
    /**
     * Tests format disabling.
     */
    public function testDisableFormatWithEditor() : void {
        $formats = [
            'monoceros' => 'Monoceros',
            'tattoo' => 'Tattoo',
        ];
        // Install the node module.
        $this->container
            ->get('module_installer')
            ->install([
            'node',
        ]);
        $this->resetAll();
        // Create a new node type and attach the 'body' field to it.
        $node_type = NodeType::create([
            'type' => $this->randomMachineName(),
            'name' => $this->randomString(),
        ]);
        $node_type->save();
        node_add_body_field($node_type, $this->randomString());
        $permissions = [
            'administer filters',
            "edit any {$node_type->id()} content",
        ];
        foreach ($formats as $format => $name) {
            // Create a format and add an editor to this format.
            $this->addEditorToNewFormat($format, $name);
            // Add permission for this format.
            $permissions[] = "use text format {$format}";
        }
        // Create a node having the body format value 'monoceros'.
        $node = Node::create([
            'type' => $node_type->id(),
            'title' => $this->randomString(),
        ]);
        $node->body->value = $this->randomString(100);
        $node->body->format = 'monoceros';
        $node->save();
        // Log in as a user able to use both formats and edit nodes of created type.
        $account = $this->drupalCreateUser($permissions);
        $this->drupalLogin($account);
        // The node edit page header.
        $text = (string) new FormattableMarkup('<em>Edit @type</em> @title', [
            '@type' => $node_type->label(),
            '@title' => $node->label(),
        ]);
        // Go to node edit form.
        $this->drupalGet('node/' . $node->id() . '/edit');
        $this->assertSession()
            ->responseContains($text);
        // Disable the format assigned to the 'body' field of the node.
        FilterFormat::load('monoceros')->disable()
            ->save();
        // Edit again the node.
        $this->drupalGet('node/' . $node->id() . '/edit');
        $this->assertSession()
            ->responseContains($text);
    }
    
    /**
     * Tests switching text editor to none does not throw a TypeError.
     */
    public function testSwitchEditorToNone() : void {
        $this->enableUnicornEditor();
        $this->drupalLogin($this->adminUser);
        $this->drupalGet('admin/config/content/formats/manage/filtered_html');
        $edit = $this->selectUnicornEditor();
        // Switch editor to 'None'.
        $edit = [
            'editor[editor]' => '',
        ];
        $this->submitForm($edit, 'Configure');
        $this->submitForm($edit, 'Save configuration');
    }
    
    /**
     * Adds an editor to a new format using the UI.
     *
     * @param string $format_id
     *   The format id.
     * @param string $format_name
     *   The format name.
     */
    protected function addEditorToNewFormat($format_id, $format_name) {
        $this->enableUnicornEditor();
        $this->drupalLogin($this->adminUser);
        $this->drupalGet('admin/config/content/formats/add');
        // Configure the text format name.
        $edit = [
            'name' => $format_name,
            'format' => $format_id,
        ];
        $edit += $this->selectUnicornEditor();
        $this->submitForm($edit, 'Save configuration');
    }
    
    /**
     * Enables the unicorn editor.
     */
    protected function enableUnicornEditor() {
        if (!$this->container
            ->get('module_handler')
            ->moduleExists('editor_test')) {
            $this->container
                ->get('module_installer')
                ->install([
                'editor_test',
            ]);
        }
    }
    
    /**
     * Tests and selects the unicorn editor.
     *
     * @return array
     *   Returns an edit array containing the values to be posted.
     */
    protected function selectUnicornEditor() {
        // Verify the <select> when a text editor is available.
        $select = $this->assertSession()
            ->selectExists('editor[editor]');
        $this->assertFalse($select->hasAttribute('disabled'));
        $options = $select->findAll('css', 'option');
        $this->assertCount(2, $options);
        $this->assertSame('None', $options[0]->getText(), 'Option 1 in the Text Editor select is "None".');
        $this->assertSame('Unicorn Editor', $options[1]->getText(), 'Option 2 in the Text Editor select is "Unicorn Editor".');
        $this->assertTrue($options[0]->hasAttribute('selected'), 'Option 1 ("None") is selected.');
        // Ensure the none option is selected.
        $this->assertSession()
            ->pageTextNotContains('This option is disabled because no modules that provide a text editor are currently enabled.');
        // Select the "Unicorn Editor" editor and click the "Configure" button.
        $edit = [
            'editor[editor]' => 'unicorn',
        ];
        $this->submitForm($edit, 'Configure');
        $this->assertSession()
            ->checkboxChecked('editor[settings][ponies_too]');
        return $edit;
    }
    
    /**
     * Verifies unicorn editor configuration.
     *
     * @param string $format_id
     *   The format machine name.
     * @param bool $ponies_too
     *   The expected value of the ponies_too setting.
     */
    protected function verifyUnicornEditorConfiguration($format_id, $ponies_too = TRUE) {
        $editor = editor_load($format_id);
        $settings = $editor->getSettings();
        $this->assertSame('unicorn', $editor->getEditor(), 'The text editor is configured correctly.');
        $this->assertSame($ponies_too, $settings['ponies_too'], 'The text editor settings are stored correctly.');
        $this->drupalGet('admin/config/content/formats/manage/' . $format_id);
        $select = $this->assertSession()
            ->selectExists('editor[editor]');
        $this->assertFalse($select->hasAttribute('disabled'));
        $options = $select->findAll('css', 'option');
        $this->assertCount(2, $options);
        $this->assertTrue($options[1]->isSelected(), 'Option 2 ("Unicorn Editor") is selected.');
    }

}