98 lines
4.0 KiB
PHP
98 lines
4.0 KiB
PHP
<?php
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// Simple success/error JSON response
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function json_response($status, $message, $data = null) {
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header('Content-Type: application/json');
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echo json_encode([
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'status' => $status,
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'message' => $message,
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'data' => $data
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]);
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exit;
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}
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if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
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json_response('error', 'Invalid request method.');
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}
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if (!isset($_FILES['document']) || $_FILES['document']['error'] == UPLOAD_ERR_NO_FILE) {
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json_response('error', 'No file was uploaded.');
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}
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$file = $_FILES['document'];
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// Check for upload errors
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if ($file['error'] !== UPLOAD_ERR_OK) {
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$upload_errors = [
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UPLOAD_ERR_INI_SIZE => 'The uploaded file exceeds the upload_max_filesize directive in php.ini.',
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UPLOAD_ERR_FORM_SIZE => 'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form.',
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UPLOAD_ERR_PARTIAL => 'The uploaded file was only partially uploaded.',
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UPLOAD_ERR_NO_FILE => 'No file was uploaded.',
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UPLOAD_ERR_NO_TMP_DIR => 'Missing a temporary folder.',
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UPLOAD_ERR_CANT_WRITE => 'Failed to write file to disk.',
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UPLOAD_ERR_EXTENSION => 'A PHP extension stopped the file upload.',
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];
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$error_message = $upload_errors[$file['error']] ?? 'Unknown upload error.';
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json_response('error', $error_message);
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}
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$upload_dir = __DIR__ . '/uploads/';
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if (!is_dir($upload_dir)) {
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if (!mkdir($upload_dir, 0775, true)) {
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json_response('error', 'Failed to create upload directory.');
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}
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}
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$file_name = basename($file['name']);
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$target_path = $upload_dir . $file_name;
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// Move the file to the uploads directory
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if (move_uploaded_file($file['tmp_name'], $target_path)) {
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// AI Translation Step
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try {
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require_once __DIR__ . '/ai/LocalAIApi.php';
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$source_lang = $_POST['source_lang'] ?? 'auto-detect';
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$target_lang = $_POST['target_lang'] ?? 'English';
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$file_path_for_ai = 'uploads/' . $file_name; // The path relative to the project root
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$prompt = "You are an expert document translator. Please perform the following tasks:\n"
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. "1. **OCR Extraction:** Analyze the document located at the following path: `{$file_path_for_ai}`. Extract all visible text from it.\n"
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. "2. **Translation:** Translate the extracted text from `{$source_lang}` to `{$target_lang}`.\n"
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. "3. **Output:** Return ONLY the translated text as a single block of plain text. Do not include any explanations, apologies, or introductory phrases. Just the translation.";
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$resp = LocalAIApi::createResponse(
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[
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'input' => [
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['role' => 'system', 'content' => 'You are a document translation service.'],
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['role' => 'user', 'content' => $prompt],
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],
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]
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);
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if (!empty($resp['success'])) {
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$translated_text = LocalAIApi::extractText($resp);
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if ($translated_text === '') {
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// Handle cases where the AI returns a non-text response or empty text
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$decoded = LocalAIApi::decodeJsonFromResponse($resp);
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$error_details = $decoded ? json_encode($decoded, JSON_PRETTY_PRINT) : 'AI returned an empty or invalid response.';
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json_response('error', 'AI processing failed. Details: ' . $error_details);
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} else {
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json_response('success', 'File translated successfully.', [
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'filePath' => $file_path_for_ai,
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'translatedText' => $translated_text
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]);
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}
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} else {
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$error_message = $resp['error'] ?? 'Unknown AI error.';
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json_response('error', 'Failed to get response from AI service: ' . $error_message);
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}
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} catch (Exception $e) {
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json_response('error', 'An exception occurred during AI processing: ' . $e->getMessage());
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}
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} else {
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json_response('error', 'Failed to move uploaded file.');
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}
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?>
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