import mysql.connector
import logging

logging.basicConfig( format='%(asctime)-15s [%(levelname)s] %(funcName)s: %(message)s', level=logging.DEBUG)
class DBConnection():

  def __init__(self):
    self.dbconnection = None

  def connect(self, host, user, password, database):

    self.connection= mysql.connector.connect(host=host, user=user,password=password,database=database)
    logging.debug(f'Datenbankverbindung aufgebaut ${self.connection}')
    logging.debug(f'Cursor gesetzt ${self.cursor}')

  def disconnect(self):
    if self.connection is not None:
      self.connection.close()


  def isConnected(self):
#    logging.debug(f'connection={self.connection}')
#    logging.debug(f'connected= {self.connection.is_connected()}')
    if self.connection is not None:
      return self.connection.is_connected()
    return False

  def cursor(self):
     if self.isConnected():
       return self.connection.cursor()
     return None

  def insert(self,cmd):
    pass

  def fetch(self):
    pass  

  def create_table(self):
    pass

  def execute_query(self, query, params = None):
    if self.isConnected():
      cursor = self.cursor()
      if cursor is not None:
        cursor.execute(query,params)
        return cursor.fetchall()