# Copyright (c) 2024 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 os
import re
import sys

YEAR_PATTERN = r"(?:20\d\d)"
LICENSE_TEXT = re.escape(
    """# Copyright (c) <YEAR_PATTERN> 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.
"""
).replace("<YEAR_PATTERN>", YEAR_PATTERN)


def check(file_path):
    with open(file_path, "r") as f:
        content = f.read()
    # Exclude shebang line
    if content.startswith("#!"):
        content = content[content.index("\n") + 1 :]
    if not re.match(LICENSE_TEXT, content):
        print(f"License header missing in {file_path}")
        return False
    if "paddlex" in file_path.split(os.sep):
        if "import paddle" in content or "from paddle import " in content:
            print(
                f"Please use `lazy_paddle` instead `paddle` when import in {file_path}"
            )
            return False
    return True


def main():
    files = sys.argv[1:]
    all_files_valid = True
    for file in files:
        if not check(file):
            all_files_valid = False
    if not all_files_valid:
        sys.exit(1)


if __name__ == "__main__":
    main()