# This file is part of Buildbot.  Buildbot 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.
#
# 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.
#
# Copyright Buildbot Team Members

import pprint
import re
import textwrap

from twisted.internet import defer
from twisted.trial import unittest

from buildbot.changes import changes
from buildbot.test.fake import fakedb
from buildbot.test.fake import fakemaster
from buildbot.test.util.misc import TestReactorMixin


class Change(unittest.TestCase, TestReactorMixin):

    change23_rows = [
        fakedb.Change(changeid=23, author="dustin", committer="dustin", comments="fix whitespace",
                      branch="warnerdb", revision="deadbeef",
                      when_timestamp=266738404, revlink='http://warner/0e92a098b',
                      category='devel', repository='git://warner', codebase='mainapp',
                      project='Buildbot'),

        fakedb.ChangeFile(changeid=23, filename='master/README.txt'),
        fakedb.ChangeFile(changeid=23, filename='worker/README.txt'),

        fakedb.ChangeProperty(changeid=23, property_name='notest',
                              property_value='["no","Change"]'),

        fakedb.ChangeUser(changeid=23, uid=27),
    ]

    def setUp(self):
        self.setUpTestReactor()
        self.master = fakemaster.make_master(self, wantDb=True)
        self.change23 = changes.Change(**dict(  # using **dict(..) forces kwargs
            category='devel',
            repository='git://warner',
            codebase='mainapp',
            who='dustin',
            committer='dustin',
            when=266738404,
            comments='fix whitespace',
            project='Buildbot',
            branch='warnerdb',
            revlink='http://warner/0e92a098b',
            properties={'notest': "no"},
            files=['master/README.txt', 'worker/README.txt'],
            revision='deadbeef'))
        self.change23.number = 23

        self.change24 = changes.Change(**dict(
            category='devel',
            repository='git://warner',
            codebase='mainapp',
            who='dustin',
            committer='dustin',
            when=266738405,
            comments='fix whitespace again',
            project='Buildbot',
            branch='warnerdb',
            revlink='http://warner/0e92a098c',
            properties={'notest': "no"},
            files=['master/README.txt', 'worker/README.txt'],
            revision='deadbeef'))
        self.change24.number = 24

        self.change25 = changes.Change(**dict(
            category='devel',
            repository='git://warner',
            codebase='mainapp',
            who='dustin',
            committer='dustin',
            when=266738406,
            comments='fix whitespace again',
            project='Buildbot',
            branch='warnerdb',
            revlink='http://warner/0e92a098d',
            properties={'notest': "no"},
            files=['master/README.txt', 'worker/README.txt'],
            revision='deadbeef'))
        self.change25.number = 25

    @defer.inlineCallbacks
    def test_fromChdict(self):
        # get a real honest-to-goodness chdict from the fake db
        yield self.master.db.insertTestData(self.change23_rows)
        chdict = yield self.master.db.changes.getChange(23)

        exp = self.change23
        got = yield changes.Change.fromChdict(self.master, chdict)

        # compare
        ok = True
        ok = ok and got.number == exp.number
        ok = ok and got.who == exp.who
        ok = ok and got.committer == exp.committer
        ok = ok and sorted(got.files) == sorted(exp.files)
        ok = ok and got.comments == exp.comments
        ok = ok and got.revision == exp.revision
        ok = ok and got.when == exp.when
        ok = ok and got.branch == exp.branch
        ok = ok and got.category == exp.category
        ok = ok and got.revlink == exp.revlink
        ok = ok and got.properties == exp.properties
        ok = ok and got.repository == exp.repository
        ok = ok and got.codebase == exp.codebase
        ok = ok and got.project == exp.project
        if not ok:
            def printable(c):
                return pprint.pformat(c.__dict__)
            self.fail("changes do not match; expected\n%s\ngot\n%s" %
                      (printable(exp), printable(got)))

    def test_str(self):
        string = str(self.change23)
        self.assertTrue(re.match(r"Change\(.*\)", string), string)

    def test_asText(self):
        text = self.change23.asText()
        self.assertTrue(re.match(textwrap.dedent('''\
            Files:
             master/README.txt
             worker/README.txt
            On: git://warner
            For: Buildbot
            At: .*
            Changed By: dustin
            Committed By: dustin
            Comments: fix whitespaceProperties:.
              notest: no

            '''), text), text)

    def test_asDict(self):
        dict = self.change23.asDict()
        self.assertIn('1978', dict['at'])  # timezone-sensitive
        del dict['at']
        self.assertEqual(dict, {
            'branch': 'warnerdb',
            'category': 'devel',
            'codebase': 'mainapp',
            'comments': 'fix whitespace',
            'files': [{'name': 'master/README.txt'},
                      {'name': 'worker/README.txt'}],
            'number': 23,
            'project': 'Buildbot',
            'properties': [('notest', 'no', 'Change')],
            'repository': 'git://warner',
            'rev': 'deadbeef',
            'revision': 'deadbeef',
            'revlink': 'http://warner/0e92a098b',
            'when': 266738404,
            'who': 'dustin',
            'committer': 'dustin'})

    def test_getShortAuthor(self):
        self.assertEqual(self.change23.getShortAuthor(), 'dustin')

    def test_getTime(self):
        # careful, or timezones will hurt here
        self.assertIn('Jun 1978', self.change23.getTime())

    def test_getTimes(self):
        self.assertEqual(self.change23.getTimes(), (266738404, None))

    def test_getText(self):
        self.change23.who = 'nasty < nasty'  # test the html escaping (ugh!)
        self.assertEqual(self.change23.getText(), ['nasty &lt; nasty'])

    def test_getLogs(self):
        self.assertEqual(self.change23.getLogs(), {})

    def test_compare(self):
        self.assertEqual(self.change23, self.change23)
        self.assertNotEqual(self.change24, self.change23)
        self.assertGreater(self.change24, self.change23)
        self.assertGreaterEqual(self.change24, self.change23)
        self.assertGreaterEqual(self.change24, self.change24)
        self.assertLessEqual(self.change24, self.change24)
        self.assertLessEqual(self.change23, self.change24)
        self.assertLess(self.change23, self.change25)
