<?php

namespace Drupal\ai_automators\PluginBaseClasses;

use Drupal\Core\Entity\ContentEntityInterface;
use Drupal\Core\Field\FieldDefinitionInterface;

/**
 * This is a base class that can be used for LLMs simple faq field rules.
 */
class FaqField extends RuleBase {

  /**
   * {@inheritDoc}
   */
  public function helpText() {
    return "This can help build FAQs from text.";
  }

  /**
   * {@inheritDoc}
   */
  public function placeholderText() {
    return "Based on the context text return 5 questions and answers.\n\nContext:\n{{ context }}";
  }

  /**
   * {@inheritDoc}
   */
  public function generate(ContentEntityInterface $entity, FieldDefinitionInterface $fieldDefinition, array $automatorConfig) {
    // Generate the real prompt if needed.
    $prompts = parent::generate($entity, $fieldDefinition, $automatorConfig);
    $this->setStructuredOutputSchema($entity, $fieldDefinition, $automatorConfig);
    $total = [];
    $instance = $this->prepareLlmInstance('chat', $automatorConfig);
    foreach ($prompts as $prompt) {
      // Create new messages.
      $values = $this->runChatMessage($prompt, $automatorConfig, $instance, $entity);
      if (!empty($values)) {
        $total = array_merge_recursive($total, $values);
      }
    }
    return $total;
  }

  /**
   * {@inheritDoc}
   */
  public function verifyValue(ContentEntityInterface $entity, $value, FieldDefinitionInterface $fieldDefinition, array $automatorConfig) {
    if (empty($value['question']) || empty($value['answer'])) {
      return FALSE;
    }
    return TRUE;
  }

  /**
   * {@inheritdoc}
   */
  protected function getStructuredOutputValueSchema(ContentEntityInterface $entity, FieldDefinitionInterface $fieldDefinition, array $automatorConfig): array {
    return [
      'type' => 'object',
      'additionalProperties' => FALSE,
      'required' => [
        'question',
        'answer',
      ],
      'properties' => [
        'question' => [
          'type' => 'string',
        ],
        'answer' => [
          'type' => 'string',
        ],
      ],
    ];
  }

}
