from contextlib import asynccontextmanager
from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from fastapi.staticfiles import StaticFiles
from pathlib import Path

from app.config import settings
from app.database import engine, Base
from app.api.routers import auth, uploads, orders, templates, admin, order_items, cad, materials, worker, analytics, pricing, products, output_types, render_templates, notifications


@asynccontextmanager
async def lifespan(app: FastAPI):
    # Create upload directories
    for subdir in ("step_files", "excel_files", "thumbnails", "renders", "blend-templates"):
        Path(settings.upload_dir, subdir).mkdir(parents=True, exist_ok=True)
    yield


app = FastAPI(
    title="Schaeffler Automat API",
    version="0.1.0",
    description="Media-creation pipeline for Schaeffler CAD/bearing product orders",
    lifespan=lifespan,
)

app.add_middleware(
    CORSMiddleware,
    allow_origins=["http://localhost:5173", "http://localhost:3000", "http://frontend:5173", "http://localhost:8888"],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

# Mount static files for thumbnails (dir created in lifespan; skip if not writable)
thumbnails_dir = Path(settings.upload_dir) / "thumbnails"
try:
    thumbnails_dir.mkdir(parents=True, exist_ok=True)
    app.mount("/thumbnails", StaticFiles(directory=str(thumbnails_dir)), name="thumbnails")
except (PermissionError, OSError):
    pass  # Running outside Docker without upload dir — thumbnails won't be served statically

# Mount static files for renders
renders_dir = Path(settings.upload_dir) / "renders"
try:
    renders_dir.mkdir(parents=True, exist_ok=True)
    app.mount("/renders", StaticFiles(directory=str(renders_dir)), name="renders")
except (PermissionError, OSError):
    pass

# Include routers
app.include_router(auth.router, prefix="/api")
app.include_router(uploads.router, prefix="/api")
app.include_router(orders.router, prefix="/api")
app.include_router(templates.router, prefix="/api")
app.include_router(admin.router, prefix="/api")
app.include_router(order_items.router, prefix="/api")
app.include_router(cad.router, prefix="/api")
app.include_router(materials.router, prefix="/api")
app.include_router(worker.router, prefix="/api")
app.include_router(analytics.router, prefix="/api")
app.include_router(pricing.router, prefix="/api")
app.include_router(products.router, prefix="/api")
app.include_router(output_types.router, prefix="/api")
app.include_router(render_templates.router, prefix="/api")
app.include_router(notifications.router, prefix="/api")


@app.get("/health")
async def health():
    return {"status": "ok", "service": "schaefflerautomat-backend"}