import io, json, os
from oauthlib.oauth2 import BackendApplicationClient
from requests_oauthlib import OAuth2Session
from dataclasses import dataclass
from flask import Flask
from datetime import datetime


@dataclass
class bbg_schedule_run:
    credentail_file: str

    def get_sched_data(self, identifier):
        with io.open(self.credentail_file, encoding="utf-8") as credential_file:
            CREDENTIALS = json.load(credential_file)

        CLIENT = BackendApplicationClient(client_id=CREDENTIALS['client_id'])

        OAUTH2_ENDPOINT = 'https://bsso.blpprofessional.com/ext/api/as/token.oauth2'
        SESSION = OAuth2Session(client=CLIENT)
        SESSION.fetch_token(token_url=OAUTH2_ENDPOINT, client_secret=CREDENTIALS['client_secret'])

        URL = 'https://api.bloomberg.com/eap/catalogs/47929/content/responses/?requestIdentifier=' + identifier

        rep = SESSION.get(URL, headers={'api-version': "2"})
        # rep.json()

        DATA_URL = 'https://api.bloomberg.com/eap/catalogs/47929/content/responses/' + rep.json()['contains'][0]['key']

        jdata = SESSION.get(DATA_URL, headers={'api-version': "2"}).json()

        # return (pd.json_normalize(jdata).to_json())
        return jdata


# hug接口输出为json格式
app = Flask(__name__)

# 服务端口号
server_port = 7110

# 鉴权文件地址
ps_credential_path = "ps-credential.txt"  # 鉴权文件地址

# 日度
# daily_price_sched_key = "IDpcsgDailyType6Price"  # 日度Price任务key(第一版)
# daily_general_sched_key = "IDpcsgDailyGeneral"  # 日度general任务key(第一版)
# daily_data_price_dir = "data/day/price"  # 日度Price数据文件夹
# daily_data_general_dir = "data/day/general"  # 日度Price数据文件夹
daily_sched_key = "IDpcsgDailyRun2"  # 日度任务key
daily_data_dir = "data/day2"  # 日度数据文件夹

# 周度
# weekly_sched_key = "IDpcsgWeeklyRunETA223"  # 周度任务key(暂停)
# weekly_data_dir = "data/week"

# 月度
# month_sched_key = "IDpcsgMonthRun"  # 月度任务key(第一版)
month_sched_key = "IDpcsgMonthRun2"  # 月度任务key
monthly_data_dir = "data/month2"  # 月度数据文件夹


@app.route('/api/bloomberg/server')
def bloomberg_server():
    return {"code": 200, "data": "ok", "error": ""}


@app.route('/api/bloomberg/daily_data', methods=['POST'])
def get_bloomberg_daily_data():
    try:
        # bbg_down = bbg_schedule_run(ps_credential_path)
        # df_daily_price = bbg_down.get_sched_data(daily_price_sched_key)
        # df_daily_general = bbg_down.get_sched_data(daily_general_sched_key)
        #
        # # 写入文件留档
        # write_data_to_file(df_daily_price, daily_data_price_dir)
        # write_data_to_file(df_daily_general, daily_data_general_dir)
        #
        # resp_data = {
        #     "code": 200,
        #     "data": {
        #         "price_data": df_daily_price,
        #         "general_data": df_daily_general
        #     },
        #     "msg": "获取成功"
        # }
        # return json.dumps(resp_data, indent=2)

        bbg_down = bbg_schedule_run(ps_credential_path)
        df_daily = bbg_down.get_sched_data(daily_sched_key)

        # 写入文件留档
        write_data_to_file(df_daily, daily_data_dir)

        resp_data = {
            "code": 200,
            "data": df_daily,
            "msg": "获取成功"
        }
        return json.dumps(resp_data, indent=2)
    except Exception as e:
        err_msg = str(e)
        print(err_msg)
        return {"code": 403, "data": "", "error": err_msg}


# 周度任务暂关闭
# @app.route('/api/bloomberg/weekly_data', methods=['POST'])
# def get_bloomberg_weekly_data():
#     try:
#         bbg_down = bbg_schedule_run(ps_credential_path)
#         df_weekly = bbg_down.get_sched_data(weekly_sched_key)
#
#         # 写入文件留档
#         write_data_to_file(df_weekly, weekly_data_dir)
#
#         resp_data = {
#             "code": 200,
#             "data": df_weekly,
#             "msg": "获取成功"
#         }
#         return json.dumps(resp_data, indent=2)
#     except Exception as e:
#         err_msg = str(e)
#         print(err_msg)
#         return {"code": 403, "data": "", "error": err_msg}


@app.route('/api/bloomberg/monthly_data', methods=['POST'])
def get_bloomberg_monthly_data():
    try:
        bbg_down = bbg_schedule_run(ps_credential_path)
        df_monthly = bbg_down.get_sched_data(month_sched_key)

        # 写入文件留档
        write_data_to_file(df_monthly, monthly_data_dir)

        resp_data = {
            "code": 200,
            "data": df_monthly,
            "msg": "获取成功"
        }
        return json.dumps(resp_data, indent=2)
    except Exception as e:
        err_msg = str(e)
        print(err_msg)
        return {"code": 403, "data": "", "error": err_msg}


# write_data_to_file 数据写入文件
def write_data_to_file(json_data, dir_path=None):
    # 获取当前日期并格式化为YYYY-MM-DD形式
    today_date_str = datetime.now().strftime('%Y-%m-%d')
    file_name = f"{today_date_str}.json"

    # 确定输出目录
    directory = dir_path if dir_path else os.path.join("output", "data")

    # 构建完整的文件路径
    file_path = os.path.join(directory, file_name)

    # 检查目录是否存在，如果不存在则创建
    if not os.path.exists(directory):
        os.makedirs(directory)
        print(f"目录 '{directory}' 已创建。")

    # 写入JSON数据到文件
    try:
        with open(file_path, 'w', encoding='utf-8') as json_file:
            json.dump(json_data, json_file, ensure_ascii=False, indent=4)
            print(f"JSON数据已成功写入/更新至 '{file_path}'。")
    except Exception as e:
        print(f"写入文件时发生错误：{e}")


if __name__ == "__main__":
    app.run(host='0.0.0.0', port=server_port, debug=True)