Deploy: 2026-05-22 00:54:36

backend/app/Controllers/ChatbotController.php

@@ -72,4 +72,65 @@ class ChatbotController extends BaseController
             'id' => $id
         ]);
     }
+
+    /**
+     * Generate prompt from voice recording using Gemini audio input
+     */
+    public function generatePromptFromAudio(Request $request, Response $response)
+    {
+        // 1. Get the uploaded audio file
+        $files = $_FILES;
+        if (empty($files['audio']) || $files['audio']['error'] !== UPLOAD_ERR_OK) {
+            $response->status(400)->json(['status' => 'error', 'message' => 'Missing or invalid audio file upload']);
+            return;
+        }
+
+        $audioFile = $files['audio'];
+        
+        // 2. Validate file size (max 10MB)
+        if ($audioFile['size'] > 10 * 1024 * 1024) {
+            $response->status(400)->json(['status' => 'error', 'message' => 'Audio file size exceeds limit (10MB)']);
+            return;
+        }
+
+        // 3. Read the audio content and base64 encode
+        $audioContent = file_get_contents($audioFile['tmp_name']);
+        if ($audioContent === false) {
+            $response->status(500)->json(['status' => 'error', 'message' => 'Failed to read uploaded audio file']);
+            return;
+        }
+        $audioBase64 = base64_encode($audioContent);
+        $mimeType = $audioFile['type'] ?: 'audio/webm'; // fallback
+        // Normalize mime type (e.g. "audio/webm;codecs=opus" -> "audio/webm") for Gemini API compatibility
+        if (strpos($mimeType, ';') !== false) {
+            $mimeType = trim(explode(';', $mimeType)[0]);
+        }
+
+        // 4. Retrieve the Gemini API key (custom or system default)
+        $rules = ChatbotRule::findAllByCompany($request->company_id);
+        $apiKey = null;
+        if (!empty($rules) && !empty($rules[0]['gemini_api_key'])) {
+            $apiKey = $rules[0]['gemini_api_key'];
+        }
+        
+        $apiKey = $apiKey ?: getenv('GEMINI_API_KEY');
+        
+        if (empty($apiKey)) {
+            $response->status(500)->json(['status' => 'error', 'message' => 'Gemini API Key is not configured in the system']);
+            return;
+        }
+
+        // 5. Call Gemini Service
+        $generatedPrompt = \App\Services\GeminiService::generatePromptFromAudio($apiKey, $audioBase64, $mimeType);
+
+        if (empty($generatedPrompt)) {
+            $response->status(500)->json(['status' => 'error', 'message' => 'Failed to generate prompt from audio. Please check Gemini logs.']);
+            return;
+        }
+
+        $response->json([
+            'status' => 'success',
+            'prompt' => trim($generatedPrompt)
+        ]);
+    }
 }