v1.2 scaffold

backend/app/main.py

@@ -0,0 +1,81 @@
+import os
+import sys
+from contextlib import asynccontextmanager
+from pathlib import Path
+
+if __package__ in {None, ""}:
+    sys.path.insert(0, str(Path(__file__).resolve().parents[1]))
+
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+import uvicorn
+
+from app.api.auth import router as auth_router
+from app.api.mixes import router as mixes_router
+from app.api.powerbi import router as powerbi_router
+from app.api.products import router as products_router
+from app.api.raw_materials import router as raw_materials_router
+from app.api.scenarios import router as scenarios_router
+from app.core.config import settings
+from app.db.session import Base, engine
+from app.seed import seed_if_empty
+
+
+@asynccontextmanager
+async def lifespan(_: FastAPI):
+    Base.metadata.create_all(bind=engine)
+    seed_if_empty()
+    yield
+
+
+app = FastAPI(title=settings.app_name, lifespan=lifespan)
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+app.include_router(auth_router)
+app.include_router(raw_materials_router)
+app.include_router(mixes_router)
+app.include_router(products_router)
+app.include_router(scenarios_router)
+app.include_router(powerbi_router)
+
+
+@app.get("/")
+def root():
+    return {
+        "app": settings.app_name,
+        "message": "Use the operator frontend to sign in, manage raw materials, and review downstream mix and product costs.",
+        "workflow": [
+            "Sign in as an operator",
+            "Update raw material prices or add new materials",
+            "Review mix master recalculations",
+            "Confirm finished product pricing outputs",
+        ],
+        "endpoints": {
+            "login": "/api/auth/login",
+            "raw_materials": "/api/raw-materials",
+            "mixes": "/api/mixes",
+            "products": "/api/products",
+            "scenarios": "/api/scenarios",
+            "docs": "/docs",
+        },
+    }
+
+
+@app.get("/health")
+def healthcheck():
+    return {"status": "ok"}
+
+
+if __name__ == "__main__":
+    uvicorn.run(
+        app,
+        host=os.getenv("HOST", "0.0.0.0"),
+        port=int(os.getenv("PORT", "8000")),
+    )