Developer 

Architecture 

Ai3 FAQ follows the Ai3 Suite capability pattern provided by wegewerk/ai3_core :

  • A Capability class registers the feature under a unique key.
  • An Endpoint class implements the ZAK-AI API call.
  • A FormEngine element renders the backend widget.
  • A backend AJAX controller handles the generation request.
  • Bootstrap Package integration provides accordion functionality.

PHP API 

ArticlefaqCapability 

class ArticlefaqCapability
Fully qualified name
\Wegewerk\Ai3Faq\Domain\Capabilities\ArticlefaqCapability

Extends Wegewerk\Ai3Core\Domain\Capabilities\Capability. Registered via Configuration/Services.yaml with the following wiring:

  • $key: articlefaq
  • $title: Article FAQ
  • $endpoint: ZakAiFaq
  • Tagged as ai3.capability

ZakAiFaq 

class ZakAiFaq
Fully qualified name
\Wegewerk\Ai3Faq\Api\ZakAiFaq

Extends Wegewerk\Ai3Core\Api\AbstractZakAiEndpoint (implementing ZakAiEndpointInterface). Wraps ZakAiClient to call the ZAK-AI faq REST endpoint.

generate(array $options = [])

Sends page content to the ZAK-AI API and returns the generated FAQ data as a JSON string containing question-answer pairs.

param array $options

Associative array of options: ``text`` (string, required): The page content text to analyze for FAQ generation. language (string, optional): Target language for the FAQ (e.g. 'de'). ``min`` (int|null, optional): Minimum number of questions to generate. max (int|null, optional): Maximum number of questions to generate. ``keyword`` (string|null, optional): Focus keyword. previous (mixed, optional): Previous context or suggestions.

returntype

string

The response contains a JSON string with an array of objects with question and answer properties.

ArticlefaqController 

class ArticlefaqController
Fully qualified name
\Wegewerk\Ai3Faq\Controller\Ajax\ArticlefaqController

Backend AJAX controller (#[AsController]), extends Wegewerk\Ai3Core\Controller\Ajax\AbstractAjaxController.

getFaq(ServerRequestInterface $request)

Handles the AJAX FAQ generation request.

  1. Reads page_id and language from the POST body.
  2. Fetches all page content via PagesRepository::getPageContent().
  3. Calls ArticlefaqCapability endpoint to generate the FAQ.
  4. Parses the JSON response to extract question-answer pairs.
  5. Returns a JSON response with faqData, source, and type: 'faq' on success, or an error JSON on failure.
returntype

ResponseInterface

FormEngine integration 

The custom FormEngine node ai3FaqGeneratorElement is registered in TCA configuration:

TCA configuration for the generator element 
$GLOBALS['TCA']['tt_content']['columns']['tx_ai3_faq_generator'] = [
    'exclude' => true,
    'label'   => 'LLL:EXT:ai3_faq/Resources/Private/Language/locallang.xlf:tx_ai3.faq.generator',
    'config'  => [
        'type'       => 'user',
        'renderType' => 'ai3FaqGeneratorElement',
    ],
];
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class Ai3FaqGeneratorElement
Fully qualified name
\Wegewerk\Ai3Faq\FormEngine\Ai3FaqGeneratorElement

Extends TYPO3\CMS\Backend\Form\Element\AbstractFormElement. Renders a <div data-ai3="ai3-faq-container"> with data-page-id and data-record-uid attributes. The Lit-HTML FaqApp mounts into the inner <div data-ai3="ai3-faq-app">.

TCA Configuration 

Content element registration 

The ai3_faq content type is registered in Configuration/TCA/Overrides/tt_content_faq.php:

Content element registration 
ExtensionManagementUtility::addTcaSelectItem('tt_content',
    'CType',
    [
        'label'       => 'LLL:EXT:ai3_faq/Resources/Private/Language/locallang.xlf:tx_ai3.faq.label_ctype',
        'value'       => 'ai3_faq',
        'icon'        => 'ai3-faq-icon',
        'description' => 'LLL:EXT:ai3_faq/Resources/Private/Language/locallang.xlf:tx_ai3.faq.label_description',
        'group'       => 'AI3',
    ],
    'textmedia',
    'after',
);
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Bootstrap Package integration 

The FAQ element inherits accordion functionality from Bootstrap Package:

Accordion configuration 
$GLOBALS['TCA']['tt_content']['types']['ai3_faq'] = $GLOBALS['TCA']['tt_content']['types']['accordion'];

\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addPiFlexFormValue(
    '*',
    'FILE:EXT:bootstrap_package/Configuration/FlexForms/Accordion.xml',
    'ai3_faq'
);
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AJAX route 

The backend AJAX route is registered in Configuration/Backend/AjaxRoutes.php:

Route name Path Handler
ai3_faq_generate /ai3/faq/generate ArticlefaqController::getFaq

Request (POST, JSON body):

AJAX request body 
{
    "page_id": 42,
    "language": "de"
}
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Response (success):

AJAX success response 
{
    "success": true,
    "faqData": [
        {
            "question": "What is this page about?",
            "answer": "This page describes..."
        },
        {
            "question": "How do I use this feature?",
            "answer": "To use this feature, you need to..."
        }
    ],
    "source": "Page content extracted from...",
    "type": "faq"
}
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Response (error):

AJAX error response 
{
    "success": false,
    "error": "Error message describing what went wrong"
}
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JavaScript modules 

JavaScript modules are registered via Configuration/JavaScriptModules.php under the @wegewerk/Ai3Faq/ import map prefix.

  • ``@wegewerk/Ai3Faq/ai3api.js`` -- Ai3Api class with generateFaq(pageId, recordUid, language) that POSTs to the AJAX route via TYPO3's AjaxRequest.
  • ``@wegewerk/Ai3Faq/faq.js`` -- Lit-HTML FaqApp that renders the backend widget, handles button clicks, calls Ai3Api, displays FAQ preview, and manages the accordion data.

FaqApp Class 

.. js:class:: FaqApp

The main JavaScript class that handles the FAQ generation interface.

.. js:method:: generateFaq()

Initiates FAQ generation by calling the backend AJAX endpoint. Shows loading state and handles success/error responses.

.. js:method:: previewFaq(generatedFAQ)

Displays the generated FAQ in a preview table with questions and answers.

.. js:method:: useFaq()

Saves the generated FAQ data to the content element fields and triggers form submission via FormEngine.saveDocument().

.. js:method:: updateAi3Fields(type, source, faqData)

Updates the hidden AI3 core fields with the generated FAQ data:

  • tx_ai3_type - Set to 'faq'
  • tx_ai3_source - Contains the original page content
  • tx_ai3_raw - Contains the JSON-encoded FAQ data

Services Configuration 

The extension's services are configured in Configuration/Services.yaml:

Services.yaml 
services:
  _defaults:
    autowire: true
    autoconfigure: true
    public: false

  Wegewerk\Ai3Faq\:
    resource: '../Classes/*'

  Wegewerk\Ai3Faq\Domain\Capabilities\ArticlefaqCapability:
    arguments:
      $key: 'articlefaq'
      $title: 'Article FAQ'
      $endpoint: '@Wegewerk\Ai3Faq\Api\ZakAiFaq'
    tags:
      - { name: 'ai3.capability' }
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Event listener 

class AfterFormEnginePageInitializedEventListener
Fully qualified name
\Wegewerk\Ai3Faq\EventListener\AfterFormEnginePageInitializedEventListener

Listens to AfterFormEnginePageInitializedEvent (#[AsEventListener]). Adds the extension's locallang.xlf as an inline language label file to the PageRenderer, making all translation keys available to JavaScript.

Schema.org Integration 

The extension automatically generates schema.org markup for FAQ pages when using the brotkrueml/schema extension. This provides structured data for search engines and enables rich snippets.

The schema markup uses the FAQPage type and includes:

  • Main entity as FAQPage
  • Individual Question entities for each FAQ item
  • Proper acceptedAnswer markup for each answer

Customization and Extension 

Adding Language Support 

To add support for additional languages, modify the getLanguageOptions() method in faq.js:

Adding language support 
getLanguageOptions() {
     return [
         {
             value: 'de',
             label: 'Deutsch'
         },
         {
             value: 'en',
             label: 'English'
         },
         {
             value: 'fr',
             label: 'Français'
         }
     ];
}
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Custom FAQ Processing 

To customize FAQ processing, extend the ZakAiFaq class:

Custom FAQ endpoint 
class CustomZakAiFaq extends ZakAiFaq
{
    public function generate(array $options = []): string
    {
        $result = parent::generate($options);
        
        // Custom processing of FAQ data
        $faqData = json_decode($result, true);
        $processedData = $this->customProcessing($faqData);
        
        return json_encode($processedData);
    }

    private function customProcessing(array $faqData): array
    {
        // Your custom logic here
        return $faqData;
    }
}
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Template Customization 

Override the Bootstrap Package accordion template to customize FAQ output:

Custom accordion template 
<!-- EXT:your_sitepackage/Resources/Private/Templates/ContentElements/Accordion.html -->
<div class="accordion faq-accordion" id="accordion_{data.uid}">
    <f:for each="{accordionItems}" as="item" iteration="iteration">
        <div class="accordion-item">
            <h2 class="accordion-header">
                <button class="accordion-button faq-question" type="button"
                        data-bs-toggle="collapse"
                        data-bs-target="#collapse_{data.uid}_{iteration.cycle}">
                    {item.question}
                </button>
            </h2>
            <div id="collapse_{data.uid}_{iteration.cycle}" 
                 class="accordion-collapse collapse">
                <div class="accordion-body faq-answer">
                    <f:format.html>{item.answer}</f:format.html>
                </div>
            </div>
        </div>
    </f:for>
</div>
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