#  Copyright 2023 ABSA Group Limited
#
#  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.

import re
import time

from spline_agent.lineage_model import Timestamp


def current_time() -> Timestamp:
    """
    Current time since Epoch is millis
    """
    return int(round(time.time() * 1000))


def camel_to_snake(s: str) -> str:
    """
    Converts string in CamelNotation to snake_notation
    """
    s1 = re.sub('(.)([A-Z][a-z]+)', r'\1_\2', s)
    s2 = re.sub('([a-z0-9])([A-Z])', r'\1_\2', s1)
    return s2.lower()
