updates on the backend

2026-08-11 19:16:01 +05:30
commit c2af4556c6
131 changed files with 546007 additions and 0 deletions
--- a/app/main.py
+++ b/app/main.py
@@ -0,0 +1,107 @@
+"""
+FastAPI application entry point.
+
+Run with:
+    uvicorn app.main:app --reload --port 8000
+
+(see backend/README.md / the project documentation for full setup steps)
+"""
+from __future__ import annotations
+
+import logging
+import threading
+from pathlib import Path
+
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+from fastapi.staticfiles import StaticFiles
+from fastapi.responses import FileResponse
+
+from app.infrastructure.settings import API_CORS_ORIGINS
+from app.api.routers import health, brands, search, chat, catalog, system
+from app.api.routers import stores, discounts, analytics as store_analytics, trending, recommendations, store_admin
+from app.api.routers import nutrition, nutrition_admin, upload
+from app.api.routers import auth, user_products, admin_train
+from app.services.store_db import ensure_store_intelligence_schema
+from app.services.nutrition_db import ensure_nutrition_schema
+
+logging.basicConfig(
+    level=logging.INFO,
+    format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
+)
+logger = logging.getLogger(__name__)
+
+app = FastAPI(
+    title="Brand Product Search Engine - RAG API",
+    description=(
+        "Local, CPU-only RAG API over an Indian FMCG product catalog stored in pgvector. "
+        "Includes automated multi-store intelligence, ML discount engines, and nutrition intelligence."
+    ),
+    version="3.2.0",
+)
+
+
+@app.on_event("startup")
+def _on_startup() -> None:
+    # Asynchronously ensure schemas and background auto-init so server starts instantly (<1s)
+    def _async_init():
+        try:
+            ensure_store_intelligence_schema()
+            ensure_nutrition_schema()
+            from app.api.routers.system import _run_background_auto_seed
+            _run_background_auto_seed()
+        except Exception as e:
+            logger.warning("Startup background init warning: %s", e)
+
+    threading.Thread(target=_async_init, daemon=True).start()
+
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=API_CORS_ORIGINS,
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+app.include_router(health.router, prefix="/api")
+app.include_router(auth.router, prefix="/api")
+app.include_router(user_products.router, prefix="/api")
+app.include_router(admin_train.router, prefix="/api")
+app.include_router(system.router, prefix="/api")
+app.include_router(brands.router, prefix="/api")
+app.include_router(search.router, prefix="/api")
+app.include_router(chat.router, prefix="/api")
+app.include_router(catalog.router, prefix="/api")
+app.include_router(stores.router, prefix="/api")
+app.include_router(discounts.router, prefix="/api")
+app.include_router(store_analytics.router, prefix="/api")
+app.include_router(trending.router, prefix="/api")
+app.include_router(recommendations.router, prefix="/api")
+app.include_router(store_admin.router, prefix="/api")
+app.include_router(nutrition.router, prefix="/api")
+app.include_router(nutrition_admin.router, prefix="/api")
+app.include_router(upload.router, prefix="/api")
+
+# Serve built frontend static files if dist exists (single-port unified deployment)
+FRONTEND_DIST = Path(__file__).resolve().parents[2] / "frontend" / "dist"
+if FRONTEND_DIST.exists() and (FRONTEND_DIST / "assets").exists():
+    app.mount("/assets", StaticFiles(directory=str(FRONTEND_DIST / "assets")), name="assets")
+
+    @app.get("/{full_path:path}")
+    def serve_frontend(full_path: str):
+        if full_path.startswith("api") or full_path.startswith("docs") or full_path.startswith("openapi.json"):
+            return None
+        file_path = FRONTEND_DIST / full_path
+        if file_path.exists() and file_path.is_file():
+            return FileResponse(file_path)
+        return FileResponse(FRONTEND_DIST / "index.html")
+else:
+    @app.get("/")
+    def root() -> dict:
+        return {
+            "service": "Brand Product Search Engine - RAG API",
+            "docs": "/docs",
+            "health": "/api/health",
+            "system_status": "/api/system/status",
+        }