"""
@author: luojunhui
"""
import json
import time

from tqdm import tqdm
from datetime import datetime, timedelta
from argparse import ArgumentParser
from pymysql.cursors import DictCursor

from applications.const import UpdateAccountReadAvgTaskConst
from applications.db import DatabaseConnector
from applications.utils import fetch_account_fans
from applications.utils import fetch_publishing_account_list
from config import apolloConfig
from config import long_articles_config, denet_config, piaoquan_crawler_config

read_rate_table = "long_articles_read_rate"
read_avg_table = "account_avg_info_v3"
config = apolloConfig()
const = UpdateAccountReadAvgTaskConst()
unauthorized_account = json.loads(config.getConfigValue("unauthorized_gh_id_fans"))
touliu_accounts = set(json.loads(config.getConfigValue("touliu_gh_id_list")))
backup_account_fans = json.loads(config.getConfigValue("backup_account_fans"))

class UpdateAccountInfoVersion3(object):
    """
    更新账号的平均阅读率
    """

    def __init__(self):
        # init piaoquan crawler db client
        self.piaoquan_crawler_db_client = DatabaseConnector(piaoquan_crawler_config)
        self.piaoquan_crawler_db_client.connect()

        # init long articles db client
        self.long_articles_db_client = DatabaseConnector(long_articles_config)
        self.long_articles_db_client.connect()

        #  init aigc db client
        self.denet_db_client = DatabaseConnector(denet_config)
        self.denet_db_client.connect()

    def fetch_read_rate_avg_for_each_account(self, dt):
        """
        从长文数据库获取账号阅读均值
        :return:
        """
        dt = int(dt.replace("-", ""))
        sql = f"""
            select gh_id, position, read_rate_avg
            from {read_rate_table}
            where dt_version = {dt};
        """
        fetch_response_list = self.long_articles_db_client.fetch(query=sql, cursor_type=DictCursor)
        account_read_rate_dict = {}
        for item in fetch_response_list:
            key = "{}_{}".format(item['gh_id'], item['position'])
            account_read_rate_dict[key] = item['read_rate_avg']
        return account_read_rate_dict

    def do_task_list(self, dt):
        """
        do it
        """
        # get fans dict from aigc
        fans_dict = fetch_account_fans(self.denet_db_client, dt)

        # get publishing account list from aigc
        account_list = fetch_publishing_account_list(self.denet_db_client)

        # fetch each account's read avg for each position
        read_rate_avg_dict = self.fetch_read_rate_avg_for_each_account(dt)

        for account in tqdm(account_list, desc=dt):
            gh_id = account["gh_id"]
            business_type = const.TOULIU if gh_id in touliu_accounts else const.ARTICLES_DAILY
            fans = fans_dict.get(gh_id, {}).get(dt, const.DEFAULT_FANS)

            # use unauthorized account's fans if not found in aigc
            if not fans:
                fans = int(unauthorized_account.get(gh_id, const.DEFAULT_FANS))

            # use backup account's fans if not found in aigc
            if not fans:
                fans = int(backup_account_fans.get(gh_id, const.DEFAULT_FANS))

            if fans:
                for index in const.ARTICLE_INDEX_LIST:
                    gh_id_position = "{}_{}".format(gh_id, index)
                    if read_rate_avg_dict.get(gh_id_position):
                        # fetch read rate avg
                        read_rate_avg = read_rate_avg_dict[gh_id_position]
                        # cal read avg
                        read_avg = fans * read_rate_avg

                        # insert into database
                        insert_sql = f"""
                            insert into {read_avg_table}
                            (gh_id, position, update_time, account_name, fans, read_avg, like_avg, status, account_type, account_mode, account_source, account_status, business_type, read_rate_avg)
                            values
                            (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s);
                        """
                        try:
                            self.piaoquan_crawler_db_client.save(
                                query=insert_sql,
                                params=(
                                    gh_id,
                                    index,
                                    dt,
                                    account['account_name'],
                                    fans,
                                    read_avg,
                                    const.DEFAULT_LIKE,
                                    const.USING_STATUS,
                                    account['account_type'],
                                    account['mode_type'],
                                    account['account_source'],
                                    account['status'],
                                    business_type,
                                    read_rate_avg
                                )
                            )
                        except Exception as e:
                            update_sql = f"""
                                update {read_avg_table}
                                set fans = %s, read_avg = %s, read_rate_avg = %s
                                where gh_id = %s and position = %s and update_time = %s
                            """
                            try:
                                self.piaoquan_crawler_db_client.save(
                                    query=update_sql,
                                    params=(
                                        fans,
                                        read_avg,
                                        read_rate_avg,
                                        account['gh_id'],
                                        index,
                                        dt
                                    )
                                )
                            except Exception as e:
                                print(e)

                        # 修改前一天的状态为 0
                        update_status_sql = f"""
                            update {read_avg_table}
                            set status = %s
                            where update_time != %s and gh_id = %s and position = %s;
                        """
                        self.piaoquan_crawler_db_client.save(
                            query=update_status_sql,
                            params=(
                                const.NOT_USING_STATUS, dt, account['gh_id'], index
                            )
                        )


def main():
    """
    main job
    :return:
    """
    parser = ArgumentParser()
    parser.add_argument("--run-date",
                        help="Run only once for date in format of %Y-%m-%d. \
                                If no specified, run as daily jobs.")
    args = parser.parse_args()
    update_account_read_avg_task = UpdateAccountInfoVersion3()
    if args.run_date:
        update_account_read_avg_task.do_task_list(dt=args.run_date)
    else:
        dt_object = datetime.fromtimestamp(int(time.time()))
        one_day = timedelta(days=1)
        yesterday = dt_object - one_day
        yesterday_str = yesterday.strftime('%Y-%m-%d')
        update_account_read_avg_task.do_task_list(dt=yesterday_str)


if __name__ == '__main__':
    main()