Add config parsing support in backend

Signed-off-by: Felipe Cardoso <felipe.cardoso@hotmail.it>

backend/app/main.py

@@ -6,8 +6,9 @@ import psutil
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
 
-from app.api.routes import training, samples
+from app.api.routes import training, samples, config
 from app.core.config import settings
+from app.services.config_manager import ConfigManager
 from app.services.sample_manager import SampleManager
 from app.services.training_monitor import TrainingMonitor
 
@@ -35,17 +36,60 @@ app.add_middleware(
 # Create and store SampleManager instance
 sample_manager = SampleManager()
 training_monitor = TrainingMonitor()
+config_manager = ConfigManager()
 
 app.state.sample_manager = sample_manager
 app.state.training_monitor = training_monitor
+app.state.config_manager = config_manager
+
+
+async def initialize_services():
+    """
+    Initializes all service managers in the correct order, ensuring dependencies
+    are properly set up before they're needed.
+    """
+    logger.info("Starting services initialization...")
+
+    # First, initialize config manager as other services might need configuration
+    config_manager = ConfigManager()
+    app.state.config_manager = config_manager
+
+    try:
+        # Load initial configuration
+        config = await config_manager.get_config()
+        logger.info(f"Configuration loaded successfully for job: {config.job}")
+
+        # Store config in app state for easy access
+        app.state.training_config = config
+
+        # Initialize other managers with access to config
+        sample_manager = SampleManager()
+        training_monitor = TrainingMonitor()
+
+        # Store managers in app state
+        app.state.sample_manager = sample_manager
+        app.state.training_monitor = training_monitor
+
+        # Start the managers
+        await sample_manager.startup()
+        await training_monitor.startup()
+
+        logger.info("All services initialized successfully")
+
+    except Exception as e:
+        logger.error(f"Failed to initialize services: {str(e)}")
+        # Re-raise to prevent app from starting with partially initialized services
+        raise
 
 
 @app.on_event("startup")
 async def startup_event():
-    """Initialize services on startup"""
+    """
+    Startup event handler that ensures all services are properly initialized
+    before the application starts accepting requests.
+    """
     logger.info("Starting up Training Monitor API")
-    await sample_manager.startup()
-    await training_monitor.startup()
+    await initialize_services()
 
 
 
@@ -60,6 +104,7 @@ async def shutdown_event():
 # Include routers with versioning
 app.include_router(training.router, prefix=f"{settings.API_VER_STR}/training", tags=["training"])
 app.include_router(samples.router, prefix=f"{settings.API_VER_STR}/samples", tags=["samples"])
+app.include_router(config.router, prefix=f"{settings.API_VER_STR}/config", tags=["config"])
 
 
 @app.get("/")