"""
BITDA利润率
"""
from fastapi import APIRouter, HTTPException
from pydantic import BaseModel

from Common.schemas import IndicatorDescription

router = APIRouter()

# 指标描述
ENAME = "BITDA_profit_margin"
CNAME = "BITDA利润率"
NATURE = "定量"
CATEGORY = "盈利能力"
DESCRIPTION = "BITDA利润率 = 利润总额 / 营业收入"

# 参数描述
PARAM1_ENAME = "total_profit"
PARAM1_CNAME = "利润总额"
PARAM1_DESCR = "利润表-利润总额"

PARAM2_ENAME = "operating_income"
PARAM2_CNAME = "营业收入"
PARAM2_DESCR = "利润表-营业收入"


# 输入参数
class Parameter(BaseModel):
    total_profit: float = "利润总额"
    operating_income: float = "营业收入"


# 计算接口
@router.post("/{}/".format(ENAME), tags=[CATEGORY], summary=CNAME, description=DESCRIPTION)
def calculation(parameter: Parameter):
    try:
        result = parameter.total_profit / parameter.operating_income
        return round(result, 6)
    except ZeroDivisionError:
        return "+inf"
    except Exception:
        raise HTTPException(status_code=400, detail="Calculate Failed")


# 描述接口
@router.get("/{}/description".format(ENAME),
            response_model=IndicatorDescription,
            tags=[CATEGORY], summary=CNAME, description=DESCRIPTION)
def description():

    body = {
        "ename": ENAME,
        "cname": CNAME,
        "nature": NATURE,
        "category": CATEGORY,
        "description": DESCRIPTION,
        "parameters": [
            {"ename": PARAM1_ENAME, "cname": PARAM1_CNAME, "description": PARAM1_DESCR},
            {"ename": PARAM2_ENAME, "cname": PARAM2_CNAME, "description": PARAM2_DESCR}
        ],
    }

    return body