feat: Implement usage statistics tracking with backend integration and route setup

py/routes/usage_stats_routes.py

@@ -0,0 +1,49 @@
+import logging
+from aiohttp import web
+from ..utils.usage_stats import UsageStats
+
+logger = logging.getLogger(__name__)
+
+class UsageStatsRoutes:
+    """Routes for handling usage statistics updates"""
+    
+    @staticmethod
+    def setup_routes(app):
+        """Register usage stats routes"""
+        app.router.add_post('/loras/api/update-usage-stats', UsageStatsRoutes.update_usage_stats)
+    
+    @staticmethod
+    async def update_usage_stats(request):
+        """
+        Update usage statistics based on a prompt_id
+        
+        Expects a JSON body with:
+        {
+            "prompt_id": "string"
+        }
+        """
+        try:
+            # Parse the request body
+            data = await request.json()
+            prompt_id = data.get('prompt_id')
+            
+            if not prompt_id:
+                return web.json_response({
+                    'success': False,
+                    'error': 'Missing prompt_id'
+                }, status=400)
+            
+            # Call the UsageStats to process this prompt_id synchronously
+            usage_stats = UsageStats()
+            await usage_stats.process_execution(prompt_id)
+            
+            return web.json_response({
+                'success': True
+            })
+            
+        except Exception as e:
+            logger.error(f"Failed to update usage stats: {e}", exc_info=True)
+            return web.json_response({
+                'success': False,
+                'error': str(e)
+            }, status=500)