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<?php |
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/* For license terms, see /license.txt */ |
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use Chamilo\PluginBundle\Entity\AiHelper\Requests; |
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use Doctrine\ORM\Tools\SchemaTool; |
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/** |
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* Description of AiHelperPlugin. |
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* |
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* @author Christian Beeznest <[email protected]> |
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*/ |
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class AiHelperPlugin extends Plugin |
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{ |
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public const TABLE_REQUESTS = 'plugin_ai_helper_requests'; |
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public const OPENAI_API = 'openai'; |
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protected function __construct() |
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{ |
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$version = '1.1'; |
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$author = 'Christian Fasanando'; |
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$message = 'Description'; |
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$settings = [ |
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$message => 'html', |
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'tool_enable' => 'boolean', |
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'api_name' => [ |
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'type' => 'select', |
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'options' => $this->getApiList(), |
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], |
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'api_key' => 'text', |
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'organization_id' => 'text', |
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'tool_lp_enable' => 'boolean', |
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'tool_quiz_enable' => 'boolean', |
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'tokens_limit' => 'text', |
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]; |
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parent::__construct($version, $author, $settings); |
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} |
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/** |
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* Get the list of apis availables. |
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* |
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* @return array |
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*/ |
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public function getApiList() |
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{ |
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$list = [ |
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self::OPENAI_API => 'OpenAI', |
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]; |
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return $list; |
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} |
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/** |
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* Get the completion text from openai. |
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* |
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* @return string |
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*/ |
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public function openAiGetCompletionText( |
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string $prompt, |
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string $toolName |
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) { |
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if (!$this->validateUserTokensLimit(api_get_user_id())) { |
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return [ |
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'error' => true, |
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'message' => $this->get_lang('ErrorTokensLimit'), |
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]; |
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} |
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require_once __DIR__.'/src/openai/OpenAi.php'; |
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$apiKey = $this->get('api_key'); |
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$organizationId = $this->get('organization_id'); |
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$ai = new OpenAi($apiKey, $organizationId); |
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$temperature = 0.2; |
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$model = 'text-davinci-003'; |
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$maxTokens = 2000; |
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$frequencyPenalty = 0; |
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$presencePenalty = 0.6; |
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$topP = 1.0; |
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$complete = $ai->completion([ |
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'model' => $model, |
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'prompt' => $prompt, |
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'temperature' => $temperature, |
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'max_tokens' => $maxTokens, |
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'frequency_penalty' => $frequencyPenalty, |
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'presence_penalty' => $presencePenalty, |
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'top_p' => $topP, |
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]); |
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$result = json_decode($complete, true); |
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$resultText = ''; |
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if (!empty($result['choices'])) { |
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$resultText = $result['choices'][0]['text']; |
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// saves information of user results. |
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$values = [ |
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'user_id' => api_get_user_id(), |
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'tool_name' => $toolName, |
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'prompt' => $prompt, |
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'prompt_tokens' => (int) $result['usage']['prompt_tokens'], |
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'completion_tokens' => (int) $result['usage']['completion_tokens'], |
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'total_tokens' => (int) $result['usage']['total_tokens'], |
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]; |
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$this->saveRequest($values); |
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} |
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return $resultText; |
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} |
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/** |
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* Validates tokens limit of a user per current month. |
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*/ |
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public function validateUserTokensLimit(int $userId): bool |
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{ |
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$em = Database::getManager(); |
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$repo = $em->getRepository('ChamiloPluginBundle:AiHelper\Requests'); |
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$startDate = api_get_utc_datetime( |
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null, |
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false, |
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true) |
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->modify('first day of this month')->setTime(00, 00, 00) |
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; |
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$endDate = api_get_utc_datetime( |
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null, |
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false, |
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true) |
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->modify('last day of this month')->setTime(23, 59, 59) |
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; |
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$qb = $repo->createQueryBuilder('e') |
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->select('sum(e.totalTokens) as total') |
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->andWhere('e.requestedAt BETWEEN :dateMin AND :dateMax') |
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->andWhere('e.userId = :user') |
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->setMaxResults(1) |
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->setParameters( |
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[ |
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'dateMin' => $startDate->format('Y-m-d h:i:s'), |
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'dateMax' => $endDate->format('Y-m-d h:i:s'), |
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'user' => $userId, |
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] |
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); |
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$result = $qb->getQuery()->getOneOrNullResult(); |
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$totalTokens = !empty($result) ? (int) $result['total'] : 0; |
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$valid = true; |
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$tokensLimit = $this->get('tokens_limit'); |
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if (!empty($tokensLimit)) { |
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$valid = ($totalTokens <= (int) $tokensLimit); |
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} |
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return $valid; |
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} |
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/** |
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* Get the plugin directory name. |
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*/ |
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public function get_name(): string |
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{ |
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return 'ai_helper'; |
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} |
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/** |
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* Get the class instance. |
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* |
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* @staticvar AiHelperPlugin $result |
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*/ |
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public static function create(): AiHelperPlugin |
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{ |
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static $result = null; |
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return $result ?: $result = new self(); |
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} |
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/** |
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* Save user information of openai request. |
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* |
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* @return int |
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*/ |
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public function saveRequest(array $values) |
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{ |
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$em = Database::getManager(); |
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$objRequest = new Requests(); |
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$objRequest |
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->setUserId($values['user_id']) |
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->setToolName($values['tool_name']) |
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->setRequestedAt(new DateTime()) |
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->setRequestText($values['prompt']) |
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->setPromptTokens($values['prompt_tokens']) |
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->setCompletionTokens($values['completion_tokens']) |
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->setTotalTokens($values['total_tokens']) |
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; |
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$em->persist($objRequest); |
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$em->flush(); |
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return $objRequest->getId(); |
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} |
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/** |
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* Install the plugin. Set the database up. |
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*/ |
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public function install() |
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{ |
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$em = Database::getManager(); |
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if ($em->getConnection()->getSchemaManager()->tablesExist([self::TABLE_REQUESTS])) { |
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return; |
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} |
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$schemaTool = new SchemaTool($em); |
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$schemaTool->createSchema( |
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[ |
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$em->getClassMetadata(Requests::class), |
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] |
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); |
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} |
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/** |
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* Unistall plugin. Clear the database. |
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*/ |
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public function uninstall() |
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{ |
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$em = Database::getManager(); |
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if (!$em->getConnection()->getSchemaManager()->tablesExist([self::TABLE_REQUESTS])) { |
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return; |
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} |
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$schemaTool = new SchemaTool($em); |
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$schemaTool->dropSchema( |
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[ |
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$em->getClassMetadata(Requests::class), |
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] |
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); |
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} |
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} |
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