# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
#
# 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 logging

logger = logging.getLogger(__name__)


class StdoutLogger:
    """Minimal logger printing metrics and params to stdout.
    Useful for services like AWS SageMaker, where you parse metrics from the actual logs"""

    disable_logging = False

    def __init__(self, tracking_uri, **kwargs):
        self.tracking_uri = tracking_uri

    def init_experiment(self, experiment_name, run_name=None, nested=True):
        logger.info(f"\n **** Starting experiment '{experiment_name}' (Run: {run_name})  ****")

    @classmethod
    def log_metrics(cls, metrics, step):
        logger.info(f"Logged metrics at step {step}: \n {metrics}")

    @classmethod
    def log_params(cls, params):
        logger.info(f"Logged parameters: \n {params}")

    @classmethod
    def log_artifacts(cls, dir_path, artifact_path=None):
        raise NotImplementedError

    @classmethod
    def end_run(cls):
        logger.info("**** End of Experiment **** ")
