#!/usr/bin/env python2.7
# Copyright 2015-2016, Google Inc.
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#
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# modification, are permitted provided that the following conditions are
# met:
#
#     * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
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# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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import json
import os
import re
import sys

root = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), '../../..'))
with open(os.path.join(root, 'tools', 'run_tests', 'sources_and_headers.json')) as f:
  js = json.loads(f.read())

re_inc1 = re.compile(r'^#\s*include\s*"([^"]*)"')
assert re_inc1.match('#include "foo"').group(1) == 'foo'
re_inc2 = re.compile(r'^#\s*include\s*<((grpc|grpc\+\+)/[^"]*)>')
assert re_inc2.match('#include <grpc++/foo>').group(1) == 'grpc++/foo'

def get_target(name):
  for target in js:
    if target['name'] == name:
      return target
  assert False, 'no target %s' % name

def target_has_header(target, name):
  # print target['name'], name
  if name in target['headers']:
    return True
  for dep in target['deps']:
    if target_has_header(get_target(dep), name):
      return True
  if name == 'src/core/profiling/stap_probes.h':
    return True
  return False

errors = 0
for target in js:
  for fn in target['src']:
    with open(os.path.join(root, fn)) as f:
      src = f.read().splitlines()
    for line in src:
      m = re_inc1.match(line)
      if m:
        if not target_has_header(target, m.group(1)):
          print (
            'target %s (%s) does not name header %s as a dependency' % (
              target['name'], fn, m.group(1)))
          errors += 1
      m = re_inc2.match(line)
      if m:
        if not target_has_header(target, 'include/' + m.group(1)):
          print (
            'target %s (%s) does not name header %s as a dependency' % (
              target['name'], fn, m.group(1)))
          errors += 1

assert errors == 0
