# Copyright 2020 Richard Maynard (richard.maynard@gmail.com)
#
# 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 click
from tfworker.backends.base import BackendError
from tfworker.commands.base import BaseCommand


class CleanCommand(BaseCommand):
    def __init__(self, rootc, **kwargs):
        super(CleanCommand, self).__init__(rootc, **kwargs)
        self._deployment = self._resolve_arg("deployment")
        self._limit = self._resolve_arg("limit")

    def exec(self):
        try:
            self._backend.clean(deployment=self._deployment, limit=self._limit)
        except BackendError as e:
            click.secho(f"error while cleaning: {e}", fg="red")
            raise SystemExit(1)
        click.secho("backend cleaning completed", fg="green")
