"""
@desc 数据库连接
@auth chenkai
@date 2020/11/19
"""
from model.DataBaseOperation import MysqlOperation
import yaml
import os
import pandas as pd
from clickhouse_driver.client import Client
import logging


def db_config():
    p_path = os.path.abspath(os.path.join(os.path.dirname(__file__), os.pardir))
    path = os.path.join(p_path, "config", "db_config.yaml")
    f = open(path, encoding="utf-8")
    config = yaml.load(f.read(), Loader=yaml.FullLoader)
    return config


class MysqlUtils:
    _quchen_text = None
    _zx = None
    _zx_ads = None
    _dm = None
    _zx_test = None

    def __init__(self):
        self.config = db_config()

    @property
    def quchen_text(self):

        conf = self.config['quchen_text']
        self._quchen_text = MysqlOperation(host=conf['host'],
                                           user=conf['user'],
                                           passwd=conf['passwd'],
                                           db=conf['db'])
        return self._quchen_text

    @property
    def zx(self):
        conf = self.config['zx']
        self._zx = MysqlOperation(host=conf['host'],
                                  user=conf['user'],
                                  passwd=conf['passwd'],
                                  db=conf['db'])
        return self._zx

    @property
    def zx_platform(self):
        conf = self.config['zx_platform']
        self._zx = MysqlOperation(host=conf['host'],
                                  user=conf['user'],
                                  passwd=conf['passwd'],
                                  db=conf['db'])
        return self._zx

    @property
    def zx_ads(self):
        conf = self.config['zx_ads']
        self._zx_ads = MysqlOperation(host=conf['host'],
                                      user=conf['user'],
                                      passwd=conf['passwd'],
                                      db=conf['db'])
        return self._zx_ads

    @property
    def zx_test(self):
        conf = self.config['zx_test']
        self._zx_test = MysqlOperation(host=conf['host'],
                                       user=conf['user'],
                                       passwd=conf['passwd'],
                                       db=conf['db'])
        return self._zx_test

    @property
    def dm(self):
        conf = self.config['dm']
        self._dm = MysqlOperation(host=conf['host'],
                                  user=conf['user'],
                                  passwd=conf['passwd'],
                                  db=conf['db'])
        return self._dm

    def find_db(self, db):

        if db == "quchen_text":
            self._quchen_text = self._quchen_text
            return self._quchen_text

        else:
            logging.info("输入数据库有误")

    def close(self):
        if self._quchen_text:
            self._quchen_text.cursor.close()
            self._quchen_text.conn.close()

        if self._zx:
            self._zx.cursor.close()
            self._zx.conn.close()

        if self._dm:
            self._dm.cursor.close()
            self._dm.conn.close()

        if self._zx_test:
            self._zx_test.cursor.close()
            self._zx_test.conn.close()

        if self._zx_ads:
            self._zx_ads.cursor.close()
            self._zx_ads.conn.close()


class CkUtils:

    def __init__(self):
        self.config = db_config()
        conf = self.config['clickhouse']
        self.client = Client(host=conf['host'],
                             user=conf['user'],
                             password=conf['passwd'],
                             port=conf['port'],
                             send_receive_timeout=5)

    def execute(self, sql):

        return self.client.execute(sql)

    def getData_pd(self, sql, col):
        """

        :param sql:
        :param col: ['a','b']
        :return:
        """
        data = self.execute(sql)
        df = pd.DataFrame(data, columns=col)
        return df

    def getData_pdv2(self, sql):
        data = self.client.execute_iter(sql, with_column_types=True)
        columns = [column[0] for column in next(data)]
        df = pd.DataFrame.from_records(data, columns=columns)
        return df

    def getData_json(self, sql):
        return self.getData_pdv2(sql).to_json(orient='records')

    def getColumns(self, table, is_list=False):
        data = self.execute("desc " + table)
        li = []
        str = ''
        for i in data:
            li.append(i[0])
            str += i[0] + ','
        if is_list:
            return li
        else:
            return str[:-1]

    def insertMany(self, table, col, data):
        """
        :param table: 表名 srt
        :param col:   字段名 srt   eg: ”a,b,c“
        :param data:  tuple/list
        :return:
        """
        max = 1000
        sql = "insert into {} ({}) values ".format(table, col)
        if len(data) == 0:
            logging.info("data.len==0")
            return
        if len(data) <= max:
            sql = sql + str(data)[1:-1]
            # log.info(sql)
            # log.info("insert {} rows".format(len(data)))
            self.execute(sql)
            return
        else:

            sql2 = sql + str(data[:max])[1:-1]
            # log.info(sql2)
            self.execute(sql2)
            # log.info("insert {} rows".format(max))
            self.insertMany(table, col, data[max:])


if __name__ == '__main__':
    # p_path = os.path.dirname(os.path.abspath(os.path.join(os.path.dirname(__file__), os.pardir)))
    # print(os.path.abspath(os.path.join(os.path.dirname(__file__), os.pardir)))
    ck = CkUtils()
    print(ck.execute("desc order"))