import sys
import platform

from fastapi import APIRouter, Depends
from app.api.deps import get_db
from app.services.gpu_backend import gpu_manager

router = APIRouter()


@router.get("/")
async def health_check():
    gpu_info = gpu_manager.get_status()
    return {
        "status": "ok",
        "service": "rfcp-backend",
        "version": "3.6.0",
        "build": "gpu" if gpu_info.get("gpu_available") else "cpu",
        "gpu": {
            "available": gpu_info.get("gpu_available", False),
            "backend": gpu_info.get("active_backend", "cpu"),
            "device": gpu_info.get("active_device", {}).get("name") if gpu_info.get("active_device") else "CPU",
        },
        "python": sys.version.split()[0],
        "platform": platform.system(),
    }


@router.get("/db")
async def db_check(db=Depends(get_db)):
    try:
        await db.command("ping")
        return {"status": "ok", "database": "connected"}
    except Exception as e:
        return {"status": "error", "database": str(e)}