from fastapi import APIRouter
from pydantic import BaseModel


INDEX = "调整后的经营性现金流净额/总债务（倍）"

router = APIRouter()


class Params(BaseModel):
    经营性现金流净额: float
    经营性应收项目的减少: float
    经营性应付项目的增加: float
    短期借款: float
    长期借款: float


@router.post("/{}".format(INDEX))
def func(p: Params):
    try:
        m = p.经营性现金流净额 - p.经营性应收项目的减少 - p.经营性应付项目的增加
        d = p.长期借款 + p.短期借款
        result = m / d
        return round(result, 6)

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