#!/usr/bin/env python3

# Copyright 2015 gRPC authors.
#
# 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.

# check for directory level 'README.md' files
# check that all implementation and interface files have a \file doxygen comment

import os
import sys

# where do we run
_TARGET_DIRS = [
    'include/grpc', 'include/grpc++', 'src/core', 'src/cpp', 'test/core',
    'test/cpp'
]

# which file extensions do we care about
_INTERESTING_EXTENSIONS = ['.c', '.h', '.cc']

# find our home
_ROOT = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), '../../..'))
os.chdir(_ROOT)

errors = 0

# walk directories, find things
printed_banner = False
for target_dir in _TARGET_DIRS:
    for root, dirs, filenames in os.walk(target_dir):
        if 'README.md' not in filenames:
            if not printed_banner:
                print('Missing README.md')
                print('=================')
                printed_banner = True
            print(root)
            errors += 1
if printed_banner:
    print()
printed_banner = False
for target_dir in _TARGET_DIRS:
    for root, dirs, filenames in os.walk(target_dir):
        for filename in filenames:
            if os.path.splitext(filename)[1] not in _INTERESTING_EXTENSIONS:
                continue
            path = os.path.join(root, filename)
            with open(path) as f:
                contents = f.read()
            if '\\file' not in contents:
                if not printed_banner:
                    print('Missing \\file comment')
                    print('======================')
                    printed_banner = True
                print(path)
                errors += 1

assert errors == 0, 'error count = %d' % errors