#!/usr/bin/env python3

import inspect
import optparse
import os
import sys
import unittest
import hashlib
import logging
from tempfile import TemporaryDirectory

localmodule = os.path.realpath(
    os.path.join(os.path.dirname(inspect.getfile(inspect.currentframe())), '..'))
print('localmodule: ' + localmodule)
if localmodule not in sys.path:
    sys.path.insert(0, localmodule)

from testcommon import TmpCwd
from fdroidserver import common, signatures


class SignaturesTest(unittest.TestCase):

    def setUp(self):
        logging.basicConfig(level=logging.DEBUG)
        common.config = None
        config = common.read_config(common.options)
        config['jarsigner'] = common.find_sdk_tools_cmd('jarsigner')
        config['verbose'] = True
        common.config = config

    def test_main(self):

        # option fixture class:
        class OptionsFixture:
            APK = [os.path.abspath(os.path.join('repo', 'com.politedroid_3.apk'))]

        with TemporaryDirectory() as tmpdir, TmpCwd(tmpdir):
            signatures.extract(OptionsFixture())

            # check if extracted signatures are where they are supposed to be
            # also verify weather if extracted file contian what they should
            filesAndHashes = (
                (os.path.join('metadata', 'com.politedroid', 'signatures', '3', 'MANIFEST.MF'),
                 '7dcd83f0c41a75457fd2311bf3c4578f80d684362d74ba8dc52838d353f31cf2'),
                (os.path.join('metadata', 'com.politedroid', 'signatures', '3', 'RELEASE.RSA'),
                 '883ef3d5a6e0bf69d2a58d9e255a7930f08a49abc38e216ed054943c99c8fdb4'),
                (os.path.join('metadata', 'com.politedroid', 'signatures', '3', 'RELEASE.SF'),
                 '99fbb3211ef5d7c1253f3a7ad4836eadc9905103ce6a75916c40de2831958284'),
            )
            for path, checksum in filesAndHashes:
                self.assertTrue(os.path.isfile(path),
                                msg="check whether '{path}' was extracted "
                                    "correctly.".format(path=path))
                with open(path, 'rb') as f:
                    self.assertEqual(hashlib.sha256(f.read()).hexdigest(), checksum)


if __name__ == "__main__":
    parser = optparse.OptionParser()
    parser.add_option("-v", "--verbose", action="store_true", default=False,
                      help="Spew out even more information than normal")
    (common.options, args) = parser.parse_args(['--verbose'])

    newSuite = unittest.TestSuite()
    newSuite.addTest(unittest.makeSuite(SignaturesTest))
    unittest.main(failfast=False)