#!/usr/bin/env python3

import sys, os, re

os.chdir (os.getenv ('srcdir', os.path.dirname (__file__)))

def removeprefix(s, prefix):
    if s.startswith(prefix):
        return s[len(prefix):]
    else:
        return s[:]


HBHEADERS = [os.path.basename (x) for x in os.getenv ('HBHEADERS', '').split ()] or \
	[x for x in os.listdir ('.') if x.startswith ('hb') and x.endswith ('.h')]
HBSOURCES = [
    removeprefix(x, 'src%s' % os.path.sep) for x in os.getenv ('HBSOURCES', '').split ()
] or [
    x for x in os.listdir ('.') if x.startswith ('hb') and x.endswith (('.cc', '.hh'))
]


stat = 0

for x in HBHEADERS + HBSOURCES:
	if not x.endswith ('h') or x == 'hb-gobject-structs.h': continue
	tag = x.upper ().replace ('.', '_').replace ('-', '_').replace(os.path.sep, '_').replace('/', '_')
	with open (x, 'r', encoding='utf-8') as f: content = f.read ()
	if len (re.findall (tag + r'\b', content)) != 3:
		print ('Ouch, header file %s does not have correct preprocessor guards. Expected: %s' % (x, tag))
		stat = 1

sys.exit (stat)