# 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 abc import abstractmethod

from liminal.runners.airflow.model.task import Task


class JobPhaseTask(Task):
    """
    Job phase task. A task that runs automatically at a specific phase in the pipeline.
    """

    def __init__(self, dag, liminal_config, pipeline_config, task_config, parent, trigger_rule):
        super().__init__(dag, liminal_config, pipeline_config, task_config, parent, trigger_rule)
        metrics = self.liminal_config.get('metrics', {})
        self.metrics_namespace = metrics.get('namespace', '')
        self.metrics_backends = metrics.get('backends', [])

    @abstractmethod
    def apply_task_to_dag(self):
        pass