89 lines
2.4 KiB
PHP
89 lines
2.4 KiB
PHP
<?php
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// class/chatpdf_helper.php
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class ChatPDFHelper
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{
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private $apiKey = 'sec_Wyk8yl97UBzDW85zVWsuk4YFpSPGlr2Q';
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private $apiBase = 'https://api.chatpdf.com/v1';
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// Carica un PDF e restituisce l'ID del file
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public function uploadPdf($pdfPath)
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{
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$ch = curl_init("{$this->apiBase}/sources/add-file");
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$cfile = new CURLFile($pdfPath, 'application/pdf', basename($pdfPath));
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curl_setopt_array($ch, [
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CURLOPT_POST => true,
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CURLOPT_POSTFIELDS => ['file' => $cfile],
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CURLOPT_HTTPHEADER => [
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"x-api-key: {$this->apiKey}"
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],
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CURLOPT_RETURNTRANSFER => true,
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]);
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$response = curl_exec($ch);
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curl_close($ch);
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$result = json_decode($response, true);
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return $result['sourceId'] ?? null;
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}
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// Esegue una domanda al PDF caricato
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public function askPdf($sourceId, $question)
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{
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$apiKey = $_ENV['CHATPDF_API_KEY'] ?? null;
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if (!$apiKey) {
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throw new Exception("ChatPDF API key not found in .env");
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}
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$url = "https://api.chatpdf.com/v1/chats/message";
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$payload = json_encode([
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"sourceId" => $sourceId,
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"messages" => [
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[
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"role" => "user",
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"content" => $question
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]
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]
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]);
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$ch = curl_init($url);
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curl_setopt_array($ch, [
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CURLOPT_RETURNTRANSFER => true,
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CURLOPT_POST => true,
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CURLOPT_HTTPHEADER => [
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"x-api-key: $apiKey",
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"Content-Type: application/json"
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],
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CURLOPT_POSTFIELDS => $payload,
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]);
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$response = curl_exec($ch);
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if (curl_errno($ch)) {
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throw new Exception('cURL error: ' . curl_error($ch));
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}
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curl_close($ch);
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$data = json_decode($response, true);
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// Debug temporaneo
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file_put_contents(
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__DIR__ . '/../debug_chatpdf.log',
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"Question: {$question}\nResponse: {$response}\n\n",
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FILE_APPEND
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);
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if (isset($data['content'])) {
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return trim($data['content']);
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}
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// ChatPDF a volte restituisce una lista di risposte
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if (isset($data[0]['content'])) {
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return trim($data[0]['content']);
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}
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return null;
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}
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}
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