#!/usr/bin/env python3

# http://www.drdobbs.com/testing/unit-testing-with-python/240165163

import inspect
import logging
import optparse
import os
import sys
import unittest
from binascii import unhexlify

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)

import fdroidserver.common
import fdroidserver.update
from fdroidserver.common import FDroidPopen


class UpdateTest(unittest.TestCase):
    '''fdroid update'''

    def javagetsig(self, apkfile):
        getsig_dir = os.path.join(os.path.dirname(__file__), 'getsig')
        if not os.path.exists(getsig_dir + "/getsig.class"):
            logging.critical("getsig.class not found. To fix: cd '%s' && ./make.sh" % getsig_dir)
            sys.exit(1)
        # FDroidPopen needs some config to work
        config = dict()
        fdroidserver.common.fill_config_defaults(config)
        fdroidserver.common.config = config
        p = FDroidPopen(['java', '-cp', os.path.join(os.path.dirname(__file__), 'getsig'),
                         'getsig', os.path.join(os.getcwd(), apkfile)])
        sig = None
        for line in p.output.splitlines():
            if line.startswith('Result:'):
                sig = line[7:].strip()
                break
        if p.returncode == 0:
            return sig
        else:
            return None

    def testGoodGetsig(self):
        # config needed to use jarsigner and keytool
        config = dict()
        fdroidserver.common.fill_config_defaults(config)
        fdroidserver.update.config = config
        apkfile = os.path.join(os.path.dirname(__file__), 'urzip.apk')
        sig = self.javagetsig(apkfile)
        self.assertIsNotNone(sig, "sig is None")
        pysig = fdroidserver.update.getsig(apkfile)
        self.assertIsNotNone(pysig, "pysig is None")
        self.assertEqual(sig, fdroidserver.update.getsig(apkfile),
                         "python sig not equal to java sig!")
        self.assertEqual(len(sig), len(pysig),
                         "the length of the two sigs are different!")
        try:
            self.assertEqual(unhexlify(sig), unhexlify(pysig),
                             "the length of the two sigs are different!")
        except TypeError as e:
            print(e)
            self.assertTrue(False, 'TypeError!')

    def testBadGetsig(self):
        # config needed to use jarsigner and keytool
        config = dict()
        fdroidserver.common.fill_config_defaults(config)
        fdroidserver.update.config = config
        apkfile = os.path.join(os.path.dirname(__file__), 'urzip-badsig.apk')
        sig = self.javagetsig(apkfile)
        self.assertIsNone(sig, "sig should be None: " + str(sig))
        pysig = fdroidserver.update.getsig(apkfile)
        self.assertIsNone(pysig, "python sig should be None: " + str(sig))

        apkfile = os.path.join(os.path.dirname(__file__), 'urzip-badcert.apk')
        sig = self.javagetsig(apkfile)
        self.assertIsNone(sig, "sig should be None: " + str(sig))
        pysig = fdroidserver.update.getsig(apkfile)
        self.assertIsNone(pysig, "python sig should be None: " + str(sig))

    def testScanApks(self):
        os.chdir(os.path.dirname(__file__))
        if os.path.basename(os.getcwd()) != 'tests':
            raise Exception('This test must be run in the "tests/" subdir')

        config = dict()
        fdroidserver.common.fill_config_defaults(config)
        config['ndk_paths'] = dict()
        config['accepted_formats'] = ['json', 'txt', 'xml', 'yml']
        fdroidserver.common.config = config
        fdroidserver.update.config = config

        fdroidserver.update.options = type('', (), {})()
        fdroidserver.update.options.clean = True

        alltestapps = fdroidserver.metadata.read_metadata(xref=True)
        apps = dict()
        apps['info.guardianproject.urzip'] = alltestapps['info.guardianproject.urzip']
        knownapks = fdroidserver.common.KnownApks()
        apks, cachechanged = fdroidserver.update.scan_apks(apps, {}, 'repo', knownapks, False)
        self.assertEqual(len(apks), 1)
        apk = apks[0]
        self.assertEqual(apk['minSdkVersion'], '4')
        self.assertEqual(apk['targetSdkVersion'], '18')
        self.assertFalse('maxSdkVersion' in apk)


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

    newSuite = unittest.TestSuite()
    newSuite.addTest(unittest.makeSuite(UpdateTest))
    unittest.main()