# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
#
# 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 argparse


def parse_args():
    parser = argparse.ArgumentParser(description='PaddleGAN')
    parser.add_argument('-c',
                        '--config-file',
                        metavar="FILE",
                        help='config file path')
    # cuda setting
    parser.add_argument('--no-cuda',
                        action='store_true',
                        default=False,
                        help='disables CUDA training')
    # checkpoint and log
    parser.add_argument('--resume',
                        type=str,
                        default=None,
                        help='put the path to resuming file if needed')
    parser.add_argument('--load',
                        type=str,
                        default=None,
                        help='put the path to resuming file if needed')
    # for evaluation
    parser.add_argument('--val-interval',
                        type=int,
                        default=1,
                        help='run validation every interval')
    parser.add_argument('--evaluate-only',
                        action='store_true',
                        default=False,
                        help='skip validation during training')
    # config options
    parser.add_argument("-o",
                        "--opt",
                        nargs='+',
                        help="set configuration options")

    #for inference
    parser.add_argument("--source_path",
                        default="",
                        metavar="FILE",
                        help="path to source image")
    parser.add_argument("--reference_dir",
                        default="",
                        help="path to reference images")
    parser.add_argument("--model_path", default=None, help="model for loading")

    # for profiler
    parser.add_argument(
        '-p',
        '--profiler_options',
        type=str,
        default=None,
        help=
        'The option of profiler, which should be in format \"key1=value1;key2=value2;key3=value3\".'
    )
    # fix random numbers by setting seed
    parser.add_argument('--seed',
                        type=int,
                        default=None,
                        help='fix random numbers by setting seed\".')

    # add for amp training
    parser.add_argument('--amp',
                        action='store_true',
                        default=False,
                        help='whether to enable amp training')
    parser.add_argument('--amp_level',
                        type=str,
                        default='O1',
                        choices=['O1', 'O2'],
                        help='level of amp training; O2 represent pure fp16')
    args = parser.parse_args()

    return args
