design final

run_app.py

@@ -1,15 +1,62 @@
 # run_app.py
+"""
+Development server that mimics Docker production conditions.
+Uses Gunicorn with Uvicorn workers (like Docker) but with auto-reload enabled.
+Loads environment variables from .env file.
+"""
 import os
-import uvicorn
+import sys
+from pathlib import Path
 
-# Ensure upload folder exists
+# Load environment variables from .env file (mimics docker-compose env_file)
+try:
+    from dotenv import load_dotenv
+    env_path = Path(__file__).parent / '.env'
+    if env_path.exists():
+        load_dotenv(env_path)
+        print(f"✓ Loaded environment from {env_path}")
+    else:
+        print(f"⚠ No .env file found at {env_path}")
+except ImportError:
+    print("⚠ python-dotenv not installed. Run: pip install python-dotenv")
+    print("  Environment variables from .env will not be loaded")
+
+# Mimic Docker environment variables
+os.environ.setdefault('PYTHONDONTWRITEBYTECODE', '1')
+os.environ.setdefault('PYTHONUNBUFFERED', '1')
+
+# Ensure upload folder exists (mimics Dockerfile RUN mkdir)
 UPLOAD_FOLDER = "data/uploads"
 os.makedirs(UPLOAD_FOLDER, exist_ok=True)
 
 if __name__ == "__main__":
-    uvicorn.run(
-        "main:app",       # module_name:app_instance
-        host="0.0.0.0",   # accessible on all interfaces
-        port=8000,
-        reload=True,      # enables auto-reload on code changes
-    )
+    # Check if we should use Gunicorn (production-like) or Uvicorn (faster dev)
+    use_gunicorn = "--gunicorn" in sys.argv
+
+    if use_gunicorn:
+        # Production-like: Gunicorn with Uvicorn workers (mimics Docker CMD exactly)
+        import subprocess
+        print("🚀 Starting with Gunicorn + Uvicorn workers (Docker production mode)")
+        print("   Workers: 4, Host: 0.0.0.0:8000, Timeout: 120s")
+        print("   Note: Auto-reload NOT available in Gunicorn mode")
+        subprocess.run([
+            "gunicorn", "main:app",
+            "-k", "uvicorn.workers.UvicornWorker",
+            "--bind", "0.0.0.0:8000",
+            "--workers", "4",
+            "--timeout", "120",
+            "--reload"  # Gunicorn's reload (watches Python files)
+        ])
+    else:
+        # Development: Single Uvicorn worker with fast auto-reload
+        import uvicorn
+        print("🔧 Starting with Uvicorn (development mode with auto-reload)")
+        print("   Host: 0.0.0.0:8000")
+        print("   Tip: Use --gunicorn flag to test with production server")
+        uvicorn.run(
+            "main:app",
+            host="0.0.0.0",
+            port=8000,
+            reload=True,
+            log_level="info"
+        )