from fastapi import APIRouter
from pydantic import BaseModel

INDEX = "应收账款周转率（%）"

router = APIRouter()


class Params(BaseModel):
    营业收入: float
    期初应收账款: float
    期末应收账款: float
    期初应收票据: float
    期末应收票据: float


# 计算接口
@router.post("/{}".format(INDEX))
def func(p: Params):
    try:
        d = (p.期初应收账款 + p.期末应收账款) / 2
        m = (p.期初应收票据 + p.期末应收票据) / 2
        result = p.营业收入 / (d + m)
        return round(result, 6)

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