from fastapi import APIRouter
from pydantic import BaseModel

INDEX = "剔除预收款后的资产负债率（%）"

router = APIRouter()


class Params(BaseModel):
    负债合计: float
    合同负债: float
    资产总计: float


@router.post("/{}".format(INDEX))
def func(p: Params):
    try:
        m = p.负债合计 - p.合同负债
        d = p.资产总计 - p.合同负债
        result = m / d * 100
        return round(result, 2)

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