material-api/web/calculators/steel_plate.py

from sqlalchemy import func

from calculators import Calculator
from commons.models.data_network import DataNetwork
from commons.models.fujian_survey import FujianSurvey
from commons.models.fuzhou_highway_bureau import FuzhouHighwayBureau
from commons.models.fuzhou_transportation_bureau import FuzhouTransportationBureau
from commons.models.price_result import PriceResult


class SteelPlateCalculator(Calculator):
    name = "中厚板"
    material_id = "17.01.61.00"
    unit = "t"
    spec = ""

    def __init__(self, year, month):
        self.year = year
        self.month = month

    def _get_ftb_price(self):
        query = FuzhouTransportationBureau.get_query(self.year, self.month, name='钢板')
        data = query.first()
        price = int(data.price) if data else 0
        fluctuating = int(self._get_fluctuating('price_ftb', price))
        return price, fluctuating

    # def _get_ss_price(self):
    #     return 4000, -10

    def _get_fhb_price(self):
        query = FuzhouHighwayBureau.get_query(self.year, self.month, name='钢板')
        data = query.first()
        price = int(data.price) if data else 0
        fluctuating = int(self._get_fluctuating('price_fhb', price))
        return price, fluctuating

    def _get_network_price(self):
        query = DataNetwork.get_query(self.year, self.month, name='钢板')
        data = query.all()
        prices = {item.spec.strip(): float(item.price) for item in data}

        price = 0.2 * prices.get('12mm', 0) + 0.6 * prices.get('16-20mm', 0) + 0.2 * prices.get('22-28mm', 0)
        price = round(price)

        fluctuating = int(self._get_fluctuating('price_network', price))
        return price, fluctuating

    def _get_survey_price(self):
        query = FujianSurvey.get_query(self.year, self.month, name='钢板')
        data = query.first()
        price = int(data.price) if data else 0
        fluctuating = int(self._get_fluctuating('price_survey', price))
        return price, fluctuating

    def _get_recommend_price(self):
        self._fluctuatings = [self.fluctuating_network, self.fluctuating_survey, self.fluctuating_fhb, self.fluctuating_ftb]
        return super()._get_recommend_price()

    def save(self):
        result = self.result()
        PriceResult(**result).upsert()


if __name__ == '__main__':
    from core.factory import ClientApp

    with ClientApp().app_context():
        calculator = SteelPlateCalculator(year=2024, month=5)
        result = calculator.run()
        calculator.save()
        print(result)