<?php
namespace App\Http\Controllers\instructor;
use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use App\Models\Category;
use App\Models\FileUploader;
use App\Models\Setting;
class OpenAiController extends Controller
{
function generate(Request $request)
{
if ($request->service_type == 'Course thumbnail') {
$prompt = "We have run a online LMS system. Please generate course thumbnails for me. \n Course topic: " . $request->ai_keywords;
return $this->curl_call_to_generate_image_openai($prompt);
} else {
$prompt = "Write me a ";
$prompt .= $request->service_type;
$prompt .= " on ";
$prompt .= $request->ai_keywords;
$prompt .= " in ";
$prompt .= $request->language;
$prompt .= " language";
$instructions = "You are a " . $request->service_type . " writer.";
return $this->curl_call_to_generate_text_by_openai($prompt, $instructions);
}
}
function curl_call_to_generate_image_openai($prompt)
{
$open_ai_secret_key = get_settings('open_ai_secret_key');
$curlopt_post = ['prompt' => $prompt, 'model' => 'dall-e-3', 'size' => '1024x1024', 'n' => 1];
$curlopt_post_url = 'https://api.openai.com/v1/images/generations';
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $curlopt_post_url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST');
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Content-Type: application/json',
'Authorization: Bearer ' . $open_ai_secret_key,
]);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($curlopt_post));
$response = curl_exec($ch);
curl_close($ch);
$response_arr = json_decode($response, true);
if (array_key_exists('error', $response_arr)) {
return 'Error: ' . $response_arr['error']['message'];
} else {
return json_encode($response_arr['data']);
}
}
function curl_call_to_generate_text_by_openai($instructions, $prompt)
{
$open_ai_secret_key = get_settings('open_ai_secret_key');
$open_ai_model = get_settings('open_ai_model');
$endpoint = "https://api.openai.com/v1/chat/completions";
$data = array(
"model" => $open_ai_model,
"messages" => array(
array(
"role" => "system",
"content" => $instructions
),
array(
"role" => "user",
"content" => "$prompt"
)
)
);
$ch = curl_init($endpoint);
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, array(
"Content-Type: application/json",
"Authorization: Bearer " . $open_ai_secret_key
));
$response = curl_exec($ch);
curl_close($ch);
if ($response) {
$response = json_decode($response, true);
if (is_array($response)) {
return $response['choices'][0]['message']['content'] ?? '';
}
}
}
}