class OptionsFieldUITest

class OptionsFieldUITest extends FieldTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'node',
        'options',
        'field_test',
        'taxonomy',
        'field_ui',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * The name of the created content type.
     *
     * @var string
     */
    protected $typeName;
    
    /**
     * Machine name of the created content type.
     *
     * @var string
     */
    protected $type;
    
    /**
     * Name of the option field.
     *
     * @var string
     */
    protected $fieldName;
    
    /**
     * Admin path to manage field storage settings.
     *
     * @var string
     */
    protected $adminPath;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        // Create test user.
        $admin_user = $this->drupalCreateUser([
            'access content',
            'administer taxonomy',
            'access administration pages',
            'administer site configuration',
            'administer content types',
            'administer nodes',
            'bypass node access',
            'administer node fields',
            'administer node display',
        ]);
        $this->drupalLogin($admin_user);
        // Create content type, with underscores.
        $this->typeName = 'test_' . $this->randomMachineName();
        $type = $this->drupalCreateContentType([
            'name' => $this->typeName,
            'type' => $this->typeName,
        ]);
        $this->type = $type->id();
    }
    
    /**
     * Options (integer) : test 'allowed values' input.
     */
    public function testOptionsAllowedValuesInteger() : void {
        $this->fieldName = 'field_options_integer';
        $this->createOptionsField('list_integer');
        $page = $this->getSession()
            ->getPage();
        $assert_session = $this->assertSession();
        // Explicit integer keys.
        $input = [
            'field_storage[subform][settings][allowed_values][table][0][item][key]' => 0,
            'field_storage[subform][settings][allowed_values][table][0][item][label]' => 'Zero',
            'field_storage[subform][settings][allowed_values][table][1][item][key]' => 2,
            'field_storage[subform][settings][allowed_values][table][1][item][label]' => 'Two',
        ];
        $array = [
            0 => 'Zero',
            2 => 'Two',
        ];
        $this->assertAllowedValuesInput($input, $array, 'Integer keys are accepted.');
        // Non-integer keys.
        $input = [
            'field_storage[subform][settings][allowed_values][table][0][item][key]' => 1.1,
            'field_storage[subform][settings][allowed_values][table][0][item][label]' => 'One',
        ];
        $this->assertAllowedValuesInput($input, 'keys must be integers', 'Non integer keys are rejected.');
        $input = [
            'field_storage[subform][settings][allowed_values][table][0][item][key]' => 'abc',
            'field_storage[subform][settings][allowed_values][table][0][item][label]' => 'abc',
        ];
        $this->assertAllowedValuesInput($input, 'keys must be integers', 'Non integer keys are rejected.');
        $input = [
            'field_storage[subform][settings][allowed_values][table][0][item][key]' => 0,
            'field_storage[subform][settings][allowed_values][table][0][item][label]' => 'Zero',
            'field_storage[subform][settings][allowed_values][table][1][item][key]' => 1,
            'field_storage[subform][settings][allowed_values][table][1][item][label]' => 'One',
        ];
        $array = [
            0 => 'Zero',
            1 => 'One',
        ];
        $this->assertAllowedValuesInput($input, $array, '');
        // Create a node with actual data for the field.
        $settings = [
            'type' => $this->type,
            $this->fieldName => [
                [
                    'value' => 1,
                ],
            ],
        ];
        $node = $this->drupalCreateNode($settings);
        // Check that the values in use cannot be removed.
        $this->drupalGet($this->adminPath);
        $assert_session->elementExists('css', '#remove_row_button__1');
        $delete_button_1 = $page->findById('remove_row_button__1');
        $this->assertTrue($delete_button_1->hasAttribute('disabled'), 'Button is disabled');
        // Delete the node, remove the value.
        $node->delete();
        $this->drupalGet($this->adminPath);
        $delete_button_1->click();
        $assert_session->pageTextNotContains('Processing...');
        $page->findById('edit-submit')
            ->click();
        $field_storage = FieldStorageConfig::loadByName('node', $this->fieldName);
        $this->assertSame($field_storage->getSetting('allowed_values'), [
            0 => 'Zero',
        ]);
        // Check that the same key can only be used once.
        $input = [
            'field_storage[subform][settings][allowed_values][table][0][item][key]' => 0,
            'field_storage[subform][settings][allowed_values][table][0][item][label]' => 'Zero',
            'field_storage[subform][settings][allowed_values][table][1][item][key]' => 0,
            'field_storage[subform][settings][allowed_values][table][1][item][label]' => 'One',
        ];
        $array = [
            '0' => 'One',
        ];
        $this->assertAllowedValuesInput($input, $array, 'Same value cannot be used multiple times.');
    }
    
    /**
     * Options (float) : test 'allowed values' input.
     */
    public function testOptionsAllowedValuesFloat() : void {
        $this->fieldName = 'field_options_float';
        $this->createOptionsField('list_float');
        $page = $this->getSession()
            ->getPage();
        $assert_session = $this->assertSession();
        // Explicit numeric keys.
        $input = [
            'field_storage[subform][settings][allowed_values][table][0][item][key]' => 0,
            'field_storage[subform][settings][allowed_values][table][0][item][label]' => 'Zero',
            'field_storage[subform][settings][allowed_values][table][1][item][key]' => 0.5,
            'field_storage[subform][settings][allowed_values][table][1][item][label]' => 'Point five',
        ];
        $array = [
            '0' => 'Zero',
            '0.5' => 'Point five',
        ];
        $this->assertAllowedValuesInput($input, $array, 'Integer keys are accepted.');
        // Check that values can be added.
        $input = [
            'field_storage[subform][settings][allowed_values][table][0][item][key]' => 0,
            'field_storage[subform][settings][allowed_values][table][0][item][label]' => 'Zero',
            'field_storage[subform][settings][allowed_values][table][1][item][key]' => 0.5,
            'field_storage[subform][settings][allowed_values][table][1][item][label]' => 'Point five',
            'field_storage[subform][settings][allowed_values][table][2][item][key]' => 1,
            'field_storage[subform][settings][allowed_values][table][2][item][label]' => 'One',
        ];
        $array = [
            '0' => 'Zero',
            '0.5' => 'Point five',
            '1' => 'One',
        ];
        $this->assertAllowedValuesInput($input, $array, 'Values can be added.');
        // Non-numeric keys.
        $input = [
            'field_storage[subform][settings][allowed_values][table][0][item][key]' => 'abc',
            'field_storage[subform][settings][allowed_values][table][0][item][label]' => 'abc',
        ];
        $this->assertAllowedValuesInput($input, 'each key must be a valid integer or decimal', 'Non numeric keys are rejected.');
        $input = [
            'field_storage[subform][settings][allowed_values][table][0][item][key]' => 0,
            'field_storage[subform][settings][allowed_values][table][0][item][label]' => 'Zero',
            'field_storage[subform][settings][allowed_values][table][1][item][key]' => 0.5,
            'field_storage[subform][settings][allowed_values][table][1][item][label]' => 'Point five',
            'field_storage[subform][settings][allowed_values][table][2][item][key]' => 2,
            'field_storage[subform][settings][allowed_values][table][2][item][label]' => 'Two',
        ];
        $array = [
            '0' => 'Zero',
            '0.5' => 'Point five',
            '2' => 'Two',
        ];
        $this->assertAllowedValuesInput($input, $array, '');
        // Create a node with actual data for the field.
        $settings = [
            'type' => $this->type,
            $this->fieldName => [
                [
                    'value' => 0.5,
                ],
            ],
        ];
        $node = $this->drupalCreateNode($settings);
        // Check that the values in use cannot be removed.
        $this->drupalGet($this->adminPath);
        $assert_session->elementExists('css', '#remove_row_button__1');
        $delete_button_1 = $page->findById('remove_row_button__1');
        $this->assertTrue($delete_button_1->hasAttribute('disabled'), 'Button is disabled');
        // Delete the node, remove the value.
        $node->delete();
        $this->drupalGet($this->adminPath);
        $delete_button_1->click();
        $assert_session->pageTextNotContains('Processing...');
        $page->findById('edit-submit')
            ->click();
        $field_storage = FieldStorageConfig::loadByName('node', $this->fieldName);
        $this->assertSame($field_storage->getSetting('allowed_values'), [
            0 => 'Zero',
            2 => 'Two',
        ]);
        $input = [
            'field_storage[subform][settings][allowed_values][table][0][item][key]' => 0.5,
            'field_storage[subform][settings][allowed_values][table][0][item][label]' => 'Point five',
            'field_storage[subform][settings][allowed_values][table][1][item][key]' => 0.5,
            'field_storage[subform][settings][allowed_values][table][1][item][label]' => 'Half',
        ];
        $array = [
            '0.5' => 'Half',
        ];
        $this->assertAllowedValuesInput($input, $array, 'Same value cannot be used multiple times.');
        // Check that different forms of the same float value cannot be used.
        $input = [
            'field_storage[subform][settings][allowed_values][table][0][item][key]' => 0.5,
            'field_storage[subform][settings][allowed_values][table][0][item][label]' => 'Point five',
            'field_storage[subform][settings][allowed_values][table][1][item][key]' => 0.5,
            'field_storage[subform][settings][allowed_values][table][1][item][label]' => 'Half',
        ];
        $array = [
            '0.5' => 'Half',
        ];
        $this->assertAllowedValuesInput($input, $array, 'Different forms of the same value cannot be used.');
    }
    
    /**
     * Options (text) : test 'allowed values' input.
     */
    public function testOptionsAllowedValuesText() : void {
        $this->fieldName = 'field_options_text';
        $this->createOptionsField('list_string');
        $page = $this->getSession()
            ->getPage();
        $assert_session = $this->assertSession();
        // Explicit keys.
        $input = [
            'field_storage[subform][settings][allowed_values][table][0][item][key]' => '_zero',
            'field_storage[subform][settings][allowed_values][table][0][item][label]' => 'Zero',
            'field_storage[subform][settings][allowed_values][table][1][item][key]' => '_one',
            'field_storage[subform][settings][allowed_values][table][1][item][label]' => 'One',
        ];
        $array = [
            '_zero' => 'Zero',
            '_one' => 'One',
        ];
        $this->assertAllowedValuesInput($input, $array, 'Explicit keys are accepted.');
        // Overly long keys.
        $input = [
            'field_storage[subform][settings][allowed_values][table][0][item][key]' => 'zero',
            'field_storage[subform][settings][allowed_values][table][0][item][label]' => 'Zero',
            'field_storage[subform][settings][allowed_values][table][1][item][key]' => $this->randomMachineName(256),
            'field_storage[subform][settings][allowed_values][table][1][item][label]' => 'One',
        ];
        $this->assertAllowedValuesInput($input, 'each key must be a string at most 255 characters long', 'Overly long keys are rejected.');
        $input = [
            'field_storage[subform][settings][allowed_values][table][0][item][key]' => 'zero',
            'field_storage[subform][settings][allowed_values][table][0][item][label]' => 'Zero',
            'field_storage[subform][settings][allowed_values][table][1][item][key]' => 'one',
            'field_storage[subform][settings][allowed_values][table][1][item][label]' => 'One',
        ];
        $array = [
            'zero' => 'Zero',
            'one' => 'One',
        ];
        $this->assertAllowedValuesInput($input, $array, '');
        // Create a node with actual data for the field.
        $settings = [
            'type' => $this->type,
            $this->fieldName => [
                [
                    'value' => 'one',
                ],
            ],
        ];
        $node = $this->drupalCreateNode($settings);
        // Check that the values in use cannot be removed.
        $this->drupalGet($this->adminPath);
        $assert_session->elementExists('css', '#remove_row_button__1');
        $delete_button_1 = $page->findById('remove_row_button__1');
        $value_field_1 = $page->findField('field_storage[subform][settings][allowed_values][table][1][item][key]');
        $this->assertTrue($delete_button_1->hasAttribute('disabled'), 'Button is disabled');
        $this->assertTrue($value_field_1->hasAttribute('disabled'), 'Button is disabled');
        // Delete the node, remove the value.
        $node->delete();
        $this->drupalGet($this->adminPath);
        $delete_button_1->click();
        $assert_session->pageTextNotContains('Processing...');
        $page->findById('edit-submit')
            ->click();
        $field_storage = FieldStorageConfig::loadByName('node', $this->fieldName);
        $this->assertSame($field_storage->getSetting('allowed_values'), [
            'zero' => 'Zero',
        ]);
        // Check that string values with special characters can be used.
        $input = [
            'field_storage[subform][settings][allowed_values][table][0][item][key]' => 'zero',
            'field_storage[subform][settings][allowed_values][table][0][item][label]' => 'Zero',
            'field_storage[subform][settings][allowed_values][table][1][item][key]' => '.example #example',
            'field_storage[subform][settings][allowed_values][table][1][item][label]' => 'Example',
        ];
        $array = [
            'zero' => 'Zero',
            '.example #example' => 'Example',
        ];
        $this->assertAllowedValuesInput($input, $array, '');
        // Check that the same key can only be used once.
        $input = [
            'field_storage[subform][settings][allowed_values][table][0][item][key]' => 'zero',
            'field_storage[subform][settings][allowed_values][table][0][item][label]' => 'Zero',
            'field_storage[subform][settings][allowed_values][table][1][item][key]' => 'zero',
            'field_storage[subform][settings][allowed_values][table][1][item][label]' => 'One',
        ];
        $array = [
            'zero' => 'One',
        ];
        $this->assertAllowedValuesInput($input, $array, 'Same value cannot be used multiple times.');
    }
    
    /**
     * Helper function to create list field of a given type.
     *
     * @param string $type
     *   One of 'list_integer', 'list_float' or 'list_string'.
     */
    protected function createOptionsField($type) {
        // Create a field.
        FieldStorageConfig::create([
            'field_name' => $this->fieldName,
            'entity_type' => 'node',
            'type' => $type,
        ])
            ->save();
        FieldConfig::create([
            'field_name' => $this->fieldName,
            'entity_type' => 'node',
            'bundle' => $this->type,
        ])
            ->save();
        \Drupal::service('entity_display.repository')->getFormDisplay('node', $this->type)
            ->setComponent($this->fieldName)
            ->save();
        $this->adminPath = 'admin/structure/types/manage/' . $this->type . '/fields/node.' . $this->type . '.' . $this->fieldName;
    }
    
    /**
     * Tests an input array for the 'allowed values' form element.
     *
     * @param array $input
     *   The input array.
     * @param array|string $result
     *   Either an expected resulting array in
     *   $field->getSetting('allowed_values'), or an expected error message.
     * @param string $message
     *   Message to display.
     *
     * @internal
     */
    public function assertAllowedValuesInput(array $input, $result, string $message) : void {
        $this->drupalGet($this->adminPath);
        $page = $this->getSession()
            ->getPage();
        $add_button = $page->findButton('Add another item');
        $add_button->click();
        $add_button->click();
        $this->submitForm($input, 'Save');
        // Verify that the page does not have double escaped HTML tags.
        $this->assertSession()
            ->responseNotContains('<');
        if (is_string($result)) {
            $this->assertSession()
                ->pageTextContains($result);
        }
        else {
            $field_storage = FieldStorageConfig::loadByName('node', $this->fieldName);
            $this->assertSame($field_storage->getSetting('allowed_values'), $result, $message);
        }
    }
    
    /**
     * Tests normal and key formatter display on node display.
     */
    public function testNodeDisplay() : void {
        $this->fieldName = $this->randomMachineName();
        $this->createOptionsField('list_integer');
        $node = $this->drupalCreateNode([
            'type' => $this->type,
        ]);
        $on = $this->randomMachineName();
        $off = $this->randomMachineName();
        $edit = [
            'field_storage[subform][settings][allowed_values][table][0][item][key]' => 1,
            'field_storage[subform][settings][allowed_values][table][0][item][label]' => $on,
            'field_storage[subform][settings][allowed_values][table][1][item][key]' => 0,
            'field_storage[subform][settings][allowed_values][table][1][item][label]' => $off,
        ];
        $this->drupalGet($this->adminPath);
        $page = $this->getSession()
            ->getPage();
        $page->findButton('Add another item')
            ->click();
        $this->submitForm($edit, 'Save');
        // Select a default value.
        $edit = [
            $this->fieldName => '1',
        ];
        $this->drupalGet('node/' . $node->id() . '/edit');
        $this->submitForm($edit, 'Save');
        // Check the node page and see if the values are correct.
        $file_formatters = [
            'list_default',
            'list_key',
        ];
        foreach ($file_formatters as $formatter) {
            $edit = [
                "fields[{$this->fieldName}][type]" => $formatter,
                "fields[{$this->fieldName}][region]" => 'content',
            ];
            $this->drupalGet('admin/structure/types/manage/' . $this->typeName . '/display');
            $this->submitForm($edit, 'Save');
            $this->drupalGet('node/' . $node->id());
            if ($formatter == 'list_default') {
                $output = $on;
            }
            else {
                $output = '1';
            }
            // Verify that correct options are found.
            $this->assertSession()
                ->elementsCount('xpath', '//div[text()="' . $output . '"]', 1);
        }
    }
    
    /**
     * Confirms the allowed value list is a required field.
     */
    public function testRequiredPropertyForAllowedValuesList() : void {
        $field_types = [
            'list_float',
            'list_string',
            'list_integer',
        ];
        foreach ($field_types as $field_type) {
            $this->fieldName = "field_options_{$field_type}";
            $this->createOptionsField($field_type);
            $page = $this->getSession()
                ->getPage();
            $this->drupalGet($this->adminPath);
            // Assert that the delete button for a single row is disabled.
            $this->assertCount(1, $page->findAll('css', '#allowed-values-order tr.draggable'));
            $delete_button_0 = $page->findById('remove_row_button__0');
            $this->assertTrue($delete_button_0->hasAttribute('disabled'), 'Button is disabled');
            $page->findButton('Add another item')
                ->click();
            // Assert that the delete button for the first row is enabled if there are
            // more that one rows.
            $this->assertCount(2, $page->findAll('css', '#allowed-values-order tr.draggable'));
            $this->assertFalse($delete_button_0->hasAttribute('disabled'), 'Button is enabled');
            // Delete a row.
            $delete_button_0->click();
            // Assert that the button is disabled again.
            $this->assertTrue($delete_button_0->hasAttribute('disabled'), 'Button is disabled');
            // Try to proceed without entering any value.
            $page->findButton('Save')
                ->click();
            if ($field_type == 'list_string') {
                // Asserting only name field as there is no value field for list_string.
                $this->assertSession()
                    ->pageTextContains('Name field is required.');
            }
            else {
                // Confirmation message that name and value are required fields for
                // list_float and list_integer.
                $this->assertSession()
                    ->pageTextContains('Name field is required.');
                $this->assertSession()
                    ->pageTextContains('Value field is required.');
            }
        }
    }

}