from fastapi import APIRouter
from pydantic import BaseModel


INDEX = "经营性现金流净额/总债务（%）"

router = APIRouter()


class Params(BaseModel):
    经营活动产生的现金流量净额: float
    短期借款: float
    长期借款: float


@router.post("/{}".format(INDEX))
def func(p: Params):
    try:
        d = p.长期借款 + p.短期借款
        result = p.经营活动产生的现金流量净额 / d * 100
        return round(result, 6)

    except ZeroDivisionError:
        return "算式无意义"
    except Exception:
        return "计算错误"