<?php

$params = json_decode(file_get_contents('php://input'), true);
header('Content-Type: application/json');
$input = '';

$status = 'success';
$temperature = 0;

$max_tokens = 4096;
$input = '';

$data = [];
$messages = [];

$apiKey = $params['key'];

$headers = [
    'Content-Type: application/json',
    'Authorization: Bearer ' . $apiKey,
];

if (!empty(trim($params['prompt']))) {
    $messages = [['role' => 'system', 'content' => $params['prompt']]];
}

if (!empty($params['messages'])) {
    foreach ($params['messages'] as $message) {
        $messages[] = ['role' => 'user', 'content' => $message['user']];
        $messages[] = ['role' => 'assistant', 'content' => $message['assistant']];
    }
}

if (!empty($params['input'])) {
    $input = $params['input'];
    $messages[] = ['role' => 'user', 'content' => $input];
}

if (!empty($params['temperature'])) {
    $temperature = $params['temperature'];
}
if (!empty($params['max_tokens'])) {
    $max_tokens = $params['max_tokens'];
}

$url = 'https://api.openai.com/v1/chat/completions';


$data = array_merge($data, [
    'model' => $params['model'],
    'messages' => $messages,

]);

if (substr_count($params['model'], '-4')) {
    $data = array_merge($data, [
        'max_tokens' => $max_tokens,
        'temperature' => $temperature,
    ]);
}


$ch = curl_init($url);
curl_setopt($ch, CURLOPT_TIMEOUT, 300);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
$result = curl_exec($ch);

if (curl_errno($ch)) {
    $result = curl_error($ch);
}

curl_close($ch);

echo $result;