# -*- coding: utf-8 -*-
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

from vertica_python import connect

from airflow.hooks.dbapi_hook import DbApiHook


class VerticaHook(DbApiHook):
    '''
    Interact with Vertica.
    '''

    conn_name_attr = 'vertica_conn_id'
    default_conn_name = 'vertica_default'
    supports_autocommit = True

    def get_conn(self):
        """
        Returns verticaql connection object
        """
        conn = self.get_connection(self.vertica_conn_id)
        conn_config = {
            "user": conn.login,
            "password": conn.password or '',
            "database": conn.schema,
        }

        conn_config["host"] = conn.host or 'localhost'
        if not conn.port:
            conn_config["port"] = 5433
        else:
            conn_config["port"] = int(conn.port)

        conn = connect(**conn_config)
        return conn
