.-.-.-.-.-

<?php

namespace convergine\contentbuddy\api\text;

use convergine\contentbuddy\api\TextApi;
use Exception;
use GuzzleHttp\Client;
use Throwable;
use yii\helpers\StringHelper;

class OpenAi extends TextApi {
    public function sendRequest($prompt, $maxTokens, $temperature, $isTranslate = false, $lang=''): string {
        try {

$model = $isTranslate?$this->settings->preferredTranslationModel:$this->settings->preferredModel;

$maxTokens = min( $maxTokens, $this->getMaxTokensForModel( $model ) );
            if($isTranslate && $model!='gpt-4o-mini' && $model!='gpt-4o'){
                $maxTokens = $maxTokens /2;
            }

$client = new Client();
            $res = $client->request( 'POST', $this->getEndpoint( $model ), [
                'body'    => $this->buildTextGenerationRequestBody( $model, $prompt, $maxTokens, $temperature ),
                'headers' => [
                    'Authorization' => 'Bearer ' . $this->settings->getOpenAiApiKey(),
                    'Content-Type'  => 'application/json',
                ],
                'http_errors'=>false
            ] );

$body = $res->getBody();
            $json = json_decode( $body, true );
            if(isset($json['error'])){
                $message = $json['error']['message'];

throw new Exception( $message );
 }
 } catch ( Throwable $e ) {
 $message = $e->getMessage();
 $message .= " Prompt: " . StringHelper::truncateWords($prompt,20,'...',true);
 $message .= " Model: " . $model;
 $message .= " Max tokens: " . $maxTokens;

throw new Exception( $message );
        }

$choices = $json['choices'];

return $this->getTextGenerationBasedOnModel( $model, $choices );
    }

private function buildTextGenerationRequestBody($model, $prompt, $maxTokensToGenerate, $temperature = 0.7) {
        $messages = [];

$systemMessage = $this->settings->systemMessage;
        if ( ! empty( $systemMessage ) ) {
            $messages[] = [
                'role'    => 'system',
                'content' => $systemMessage,
            ];
        }

$messages[] = [
            'role'    => 'user',
            'content' => $prompt,
        ];

return json_encode( [
            'model'       => $model,
            'messages'    => $messages,
            "temperature" => $temperature,
            'max_tokens'  => $maxTokensToGenerate,
        ] );
    }

private function getTextGenerationBasedOnModel($model, $choices) {
        return trim( $choices[0]['message']['content'] );
    }

private function getEndpoint($model) {
        return 'https://api.openai.com/v1/chat/completions';
    }
}

/srv/users/craft4/apps/./craft4-newsite-space/plugins/craft-content-buddy/./src/api/text/OpenAi.php