# 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 importlib
import os
import warnings


def _get_default_repo_url(repo_type):
    if repo_type == "file":
        repo_url = os.getcwd()
    else:
        raise TypeError("Unrecognized repository type %s" % repo_type)
    return repo_url


def get_repo_open(repo_type=None, repo_url=None):
    """Return an already initialized repo object given the parameters

    :param str repo_type: DEPRECATED - The repo module to use for the returned
        repo
    :param str repo_url: An optional repo url, if one is not specified the
        default $CWD/.stestr will be used.
    """
    if repo_type is not None:
        msg = (
            "WARNING: Specifying repository type is deprecated and will be "
            "removed in future release.\n"
        )
        warnings.warn(msg, DeprecationWarning, stacklevel=3)
    else:
        repo_type = "file"
    repo_module = importlib.import_module("stestr.repository." + repo_type)
    if not repo_url:
        repo_url = _get_default_repo_url(repo_type)
    return repo_module.RepositoryFactory().open(repo_url)


def get_repo_initialise(repo_type=None, repo_url=None):
    """Return a newly initialized repo object given the parameters

    :param str repo_type: DEPRECATED - The repo module to use for the returned
        repo
    :param str repo_url: An optional repo url, if one is not specified the
        default $CWD/.stestr will be used.
    """
    if repo_type is not None:
        msg = (
            "WARNING: Specifying repository type is deprecated and will be "
            "removed in future release.\n"
        )
        warnings.warn(msg, DeprecationWarning, stacklevel=3)
    else:
        repo_type = "file"
    repo_module = importlib.import_module("stestr.repository." + repo_type)
    if not repo_url:
        repo_url = _get_default_repo_url(repo_type)
    return repo_module.RepositoryFactory().initialise(repo_url)