# internal use only for CI
# some CI related util functions
#
# Copyright 2020 Espressif Systems (Shanghai) PTE LTD
#
# 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
import os
import subprocess
import sys

IDF_PATH = os.getenv('IDF_PATH', os.path.join(os.path.dirname(__file__), '..', '..'))


def get_submodule_dirs(full_path=False):  # type: (bool) -> list
    """
    To avoid issue could be introduced by multi-os or additional dependency,
    we use python and git to get this output
    :return: List of submodule dirs
    """
    dirs = []
    try:
        lines = subprocess.check_output(
            ['git', 'config', '--file', os.path.realpath(os.path.join(IDF_PATH, '.gitmodules')),
             '--get-regexp', 'path']).decode('utf8').strip().split('\n')
        for line in lines:
            _, path = line.split(' ')
            if full_path:
                dirs.append(os.path.join(IDF_PATH, path))
            else:
                dirs.append(path)
    except Exception as e:
        logging.warning(str(e))

    return dirs


def _check_git_filemode(full_path):  # type: (str) -> bool
    try:
        stdout = subprocess.check_output(['git', 'ls-files', '--stage', full_path]).strip().decode('utf-8')
    except subprocess.CalledProcessError:
        return True

    mode = stdout.split(' ', 1)[0]  # e.g. 100644 for a rw-r--r--
    if any([int(i, 8) & 1 for i in mode[-3:]]):
        return False
    return True


def is_executable(full_path):  # type: (str) -> bool
    """
    os.X_OK will always return true on windows. Use git to check file mode.
    :param full_path: file full path
    :return: True is it's an executable file
    """
    if sys.platform == 'win32':
        return _check_git_filemode(full_path)
    else:
        return os.access(full_path, os.X_OK)