#!/usr/bin/env python
# Copyright (C) 2014  Codethink Limited
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

import imp
python_lorry = imp.load_source('python_lorry', 'python.to_lorry')

import json

import unittest

LORRY_PREFIX = 'python'

class Tests(unittest.TestCase):

    def test_make_tarball_lorry(self):
        gzip, bzip, lzma = 'gzip', 'bzip2', 'lzma'

        valid_extensions = {'tar.gz': gzip, 'tgz': gzip, 'tar.Z': gzip,
                            'tar.bz2': bzip, 'tbz2': bzip,
                            'tar.lzma': lzma, 'tar.xz': lzma,
                            'tlz': lzma, 'txz': lzma}

        def make_url(extension):
            return 'http://foobar/baz.%s' % extension

        def get_tarball_lorry_url(name, lorry_json):
            return json.loads(lorry_json)[LORRY_PREFIX + '/'
                                            + name + '-tarball']['url']

        def get_tarball_lorry_compression(name, lorry_json):
            return json.loads(lorry_json)[LORRY_PREFIX + '/'
                                            + name + '-tarball']['compression']

        fake_package_name = 'name'
        urls = [(make_url(ext), ext) for ext in valid_extensions]

        for (url, ext) in urls:
            lorry_json = python_lorry.make_tarball_lorry(LORRY_PREFIX,
                                                         'name', url)
            print lorry_json

            tarball_url = get_tarball_lorry_url(fake_package_name, lorry_json)
            print 'Tarball url: %s' % tarball_url

            self.assertEqual(tarball_url, url)

            tarball_compression = get_tarball_lorry_compression(
                                        fake_package_name, lorry_json)

            print 'Tarball compression: %s' % tarball_compression
            self.assertEqual(tarball_compression, valid_extensions[ext])

        url = 'http://foobar/baz.tar'
        lorry_json = python_lorry.make_tarball_lorry(LORRY_PREFIX, 'name', url)
        self.assertEqual(get_tarball_lorry_url(fake_package_name,
                                               lorry_json), url)
        self.assertTrue('compression' not in lorry_json)


if __name__ == '__main__':
    suite = unittest.TestLoader().loadTestsFromTestCase(Tests)
    unittest.TextTestRunner(verbosity=2).run(suite)