from prophet import Prophet
import pandas as pd
import os
import datetime
import numpy as np


def normal(data):
    high = data.describe()['75%'] + 1.5 * (data.describe()['75%'] - data.describe()['25%'])
    low = data.describe()['25%'] - 1.5 * (data.describe()['75%'] - data.describe()['25%'])
    return (data<=high)&(data>=low)


file_dir = './浙江各地市行业电量数据'
# df = pd.read_excel(r'C:\Users\鸽子\Desktop\浙江电量20231202.xlsx')
for city in os.listdir(file_dir):
    df_city = pd.read_excel(os.path.join(file_dir, city))
    df_city['stat_date'] = df_city['stat_date'].map(lambda x: str(x).strip()[:10])
    df_city['stat_date'] = pd.to_datetime(df_city['stat_date'])
    list_goal = []
    list_industry = []
    result_dict = {}
    for industry in df_city.columns[3:]:
        s1 = df_city[['stat_date', industry]]

        ds_train = s1[(s1['stat_date'] >= '2022-09-30') & (s1['stat_date'] <= '2023-11-27')].sort_values(by='stat_date')

        ds_train.rename(columns={'stat_date': 'ds', industry: 'y'}, inplace=True)

        df_train = ds_train.copy()
        df_train['y'] = df_train['y'].where(normal(df_train['y']), other=np.nan).fillna(method='ffill')


        model = Prophet(yearly_seasonality=True, weekly_seasonality=True, daily_seasonality=True)
        model.add_country_holidays(country_name="CN")
        model.fit(df_train)
        future = model.make_future_dataframe(periods=3, freq='D')

        predict = model.predict(future)
        print(city[:2],industry)

        predict = predict[['ds', 'yhat']].set_index('ds').loc['2023-11'].rename(columns={'yhat':'售电量'})
        ds_train.rename(columns={'y':'售电量'},inplace=True)

        result = pd.concat((ds_train.set_index('ds').loc['2023-11'][:27],predict[-3:]))
        result_dict[industry] = list(result['售电量'])

    with pd.ExcelWriter(r'C:\Users\鸽子\Desktop\行业电量v1130.xlsx',mode='a',if_sheet_exists='replace',engine='openpyxl') as writer:
        pd.DataFrame(result_dict,index=pd.date_range(start=f'2023-11-01', end=f'2023-11-30', freq='D').strftime('%Y-%m-%d')).to_excel(writer,sheet_name=city[:2])

        # df = predict.join(s1.set_index('ds')).loc['2023-8']
        # df['偏差率'] = (df['y'] - df['yhat']) / df['y']
        # df['goal'] = (df['y'] - df['yhat'])[-3:].sum() / df['y'].sum()
        # list_goal.append((df['y'] - df['yhat'])[-3:].sum() / df['y'].sum())
        # list_industry.append(industry)

    # df = pd.DataFrame({'industry': list_industry, 'goal': list_goal})
    # df.to_csv(fr'C:\Users\鸽子\Desktop\行业8月偏差\{city[:2]}_goal.csv', index=False, encoding='gbk')
    #
    # with open(r'C:\Users\鸽子\Desktop\goal_8.txt','a') as f:
    #     f.write(f'{city[:2]}\n')
    #     df['goal'].value_counts(bins=[-np.inf,-0.05, -0.01, -0.005, 0, 0.005, 0.01, 0.02, 0.05,np.inf], sort=False).to_csv(f,header=False,sep='\t')