# This file contains the function to connect to a secified database.
import json
import mysql.connector
from Util import configuration as decryption

# Open the config file and readout the data
with open('config.json', 'r') as file:
    data = file.read()
    config = json.loads(data)


# -------------------------------------------------------------------------------------------------------------------- #
def createConnection(configuration):
    """
    It creates the connection to the database
    :param configuration: This specifies which configuration should be used
    :return: It returns the database connection
    """
    connection = mysql.connector.connect(
        host=config[configuration]["host"],
        user=config[configuration]["user"],
        password=decryption.decryptKey(config[configuration]["passwd"]),
        database=config[configuration]["dbname"],
        autocommit=True
    )
    return connection