def fmt_date(date):

    if date:

        return date.strftime("%Y-%m-%d %H:%M:%S").decode('utf8')

    return ""

def is_git(repository):

    if hasattr(repository, 'alias'):

        _type = repository.alias

    elif hasattr(repository, 'repo_type'):

        _type = repository.repo_type

    else:

        _type = repository

    return _type == 'git'

def is_hg(repository):

    if hasattr(repository, 'alias'):

        _type = repository.alias

    elif hasattr(repository, 'repo_type'):

        _type = repository.repo_type

    else:

        _type = repository

    return _type == 'hg'

def user_or_none(author):

    email = author_email(author)

    if email:

        user = User.get_by_email(email, case_insensitive=True, cache=True)

        if user is not None:

            return user

    user = User.get_by_username(author_name(author), case_insensitive=True, cache=True)

    if user is not None:

        return user

    return None

def email_or_none(author):

    if not author:

        return None

    user = user_or_none(author)

    if user is not None:

        return user.email # always use main email address - not necessarily the one used to find user

    # extract email from the commit string

    email = author_email(author)

    if email:

        return email

    # No valid email, not a valid user in the system, none!

    return None

def person(author, show_attr="username"):

    """Find the user identified by 'author', return one of the users attributes,

    default to the username attribute, None if there is no user"""

    # attr to return from fetched user

    person_getter = lambda usr: getattr(usr, show_attr)

    # if author is already an instance use it for extraction

    if isinstance(author, User):

        return person_getter(author)

    user = user_or_none(author)

    if user is not None:

        return person_getter(user)

    # Still nothing?  Just pass back the author name if any, else the email

    return author_name(author) or email(author)

def person_by_id(id_, show_attr="username"):

    # attr to return from fetched user

    person_getter = lambda usr: getattr(usr, show_attr)

    #maybe it's an ID ?

    if str(id_).isdigit() or isinstance(id_, int):

        id_ = int(id_)

        user = User.get(id_)

        if user is not None:

            return person_getter(user)

    return id_

def desc_stylize(value):

    """

    converts tags from value into html equivalent

    :param value:

    """

    if not value:

        return ''

                   '<div class="metatag" tag="see">see =&gt; \\1 </div>', value)

                   '<div class="metatag" tag="license"><a href="http:\/\/www.opensource.org/licenses/\\1">\\1</a></div>', value)

                   '<div class="metatag" tag="\\1">\\1 =&gt; <a href="/\\2">\\2</a></div>', value)

                   '<div class="metatag" tag="lang">\\2</div>', value)

    value = re.sub(r'\[([a-z]+)\]',

                  '<div class="metatag" tag="\\1">\\1</div>', value)

    return value

def boolicon(value):

    """Returns boolean value of a value, represented as small html image of true/false

    icons

    :param value: value

    """

    if value:

        return HTML.tag('i', class_="icon-ok")

    else:

        return HTML.tag('i', class_="icon-minus-circled")

def action_parser(user_log, feed=False, parse_cs=False):

    """

    This helper will action_map the specified string action into translated

    fancy names with icons and links

    :param user_log: user log instance

    :param feed: use output for feeds (no html and fancy icons)

    :param parse_cs: parse Changesets into VCS instances

    """

    action = user_log.action

    action_params = ' '

    x = action.split(':')

    if len(x) > 1:

        action, action_params = x

    def get_cs_links():

        revs_limit = 3  # display this amount always

        revs_top_limit = 50  # show upto this amount of changesets hidden

        revs_ids = action_params.split(',')

        deleted = user_log.repository is None

        if deleted:

            return ','.join(revs_ids)

        repo_name = user_log.repository.repo_name

        def lnk(rev, repo_name):

            if isinstance(rev, BaseChangeset) or isinstance(rev, AttributeDict):

                lazy_cs = True

                if getattr(rev, 'op', None) and getattr(rev, 'ref_name', None):

                    lazy_cs = False

                    lbl = '?'

                    if rev.op == 'delete_branch':

                        lbl = '%s' % _('Deleted branch: %s') % rev.ref_name

                        title = ''

                    elif rev.op == 'tag':

                        lbl = '%s' % _('Created tag: %s') % rev.ref_name

                        title = ''

                    _url = '#'

                else:

                    lbl = '%s' % (rev.short_id[:8])

                    _url = url('changeset_home', repo_name=repo_name,

                               revision=rev.raw_id)

                    title = tooltip(rev.message)

            else:

                ## changeset cannot be found/striped/removed etc.

                lbl = ('%s' % rev)[:12]

                _url = '#'

                title = _('Changeset not found')

            if parse_cs:

                return link_to(lbl, _url, title=title, class_='tooltip')

            return link_to(lbl, _url, raw_id=rev.raw_id, repo_name=repo_name,

                           class_='lazy-cs' if lazy_cs else '')

        def _get_op(rev_txt):

            _op = None

            _name = rev_txt

            if len(rev_txt.split('=>')) == 2:

                _op, _name = rev_txt.split('=>')

            return _op, _name

        revs = []

        if len(filter(lambda v: v != '', revs_ids)) > 0:

            repo = None

            for rev in revs_ids[:revs_top_limit]:

                _op, _name = _get_op(rev)

                # we want parsed changesets, or new log store format is bad

                if parse_cs:

                    try:

                        if repo is None:

                            repo = user_log.repository.scm_instance

                        _rev = repo.get_changeset(rev)

                           ('FALSE', False),

                           ('0', False),

                           ('-1', False),

                           ('', False)

    ])

    def test_str2bool(self, str_bool, expected):

        from kallithea.lib.utils2 import str2bool

        self.assertEqual(str2bool(str_bool), expected)

    def test_mention_extractor(self):

        from kallithea.lib.utils2 import extract_mentioned_users

        sample = (

            "@first hi there @world here's my email username@email.com "

            "@lukaszb check @one_more22 it pls @ ttwelve @D[] @one@two@three "

            "@UPPER    @cAmEL @2one_more22 @john please see this http://org.pl "

            "@marian.user just do it @marco-polo and next extract @marco_polo "

            "user.dot  hej ! not-needed maril@domain.org"

        )

        s = sorted([

            '2one_more22', 'first', 'lukaszb', 'one', 'one_more22', 'UPPER', 'cAmEL', 'john',

            'marian.user', 'marco-polo', 'marco_polo', 'world'], key=lambda k: k.lower())

        self.assertEqual(s, extract_mentioned_users(sample))

    @parameterized.expand([

        (dict(), u'just now'),

        (dict(seconds= -1), u'1 second ago'),

        (dict(seconds= -60 * 2), u'2 minutes ago'),

        (dict(hours= -1), u'1 hour ago'),

        (dict(hours= -24), u'1 day ago'),

        (dict(hours= -24 * 5), u'5 days ago'),

        (dict(months= -1), u'1 month ago'),

        (dict(months= -1, days= -2), u'1 month and 2 days ago'),

        (dict(months= -1, days= -20), u'1 month and 19 days ago'),

        (dict(years= -1, months= -1), u'1 year and 1 month ago'),

        (dict(years= -1, months= -10), u'1 year and 10 months ago'),

        (dict(years= -2, months= -4), u'2 years and 4 months ago'),

        (dict(years= -2, months= -11), u'2 years and 11 months ago'),

        (dict(years= -3, months= -2), u'3 years and 2 months ago'),

    ])

    def test_age(self, age_args, expected):

        from kallithea.lib.utils2 import age

        from dateutil import relativedelta

        n = datetime.datetime(year=2012, month=5, day=17)

        delt = lambda *args, **kwargs: relativedelta.relativedelta(*args, **kwargs)

        self.assertEqual(age(n + delt(**age_args), now=n), expected)

    @parameterized.expand([

        (dict(), u'just now'),

        (dict(seconds= -1), u'1 second ago'),

        (dict(seconds= -60 * 2), u'2 minutes ago'),

        (dict(hours= -1), u'1 hour ago'),

        (dict(hours= -24), u'1 day ago'),

        (dict(hours= -24 * 5), u'5 days ago'),

        (dict(months= -1), u'1 month ago'),

        (dict(months= -1, days= -2), u'1 month ago'),

        (dict(months= -1, days= -20), u'1 month ago'),

        (dict(years= -1, months= -1), u'13 months ago'),

        (dict(years= -1, months= -10), u'22 months ago'),

        (dict(years= -2, months= -4), u'2 years ago'),

        (dict(years= -2, months= -11), u'3 years ago'),

        (dict(years= -3, months= -2), u'3 years ago'),

        (dict(years= -4, months= -8), u'5 years ago'),

    ])

    def test_age_short(self, age_args, expected):

        from kallithea.lib.utils2 import age

        from dateutil import relativedelta

        n = datetime.datetime(year=2012, month=5, day=17)

        delt = lambda *args, **kwargs: relativedelta.relativedelta(*args, **kwargs)

        self.assertEqual(age(n + delt(**age_args), show_short_version=True, now=n), expected)

    @parameterized.expand([

        (dict(), u'just now'),

        (dict(seconds=1), u'in 1 second'),

        (dict(seconds=60 * 2), u'in 2 minutes'),

        (dict(hours=1), u'in 1 hour'),

        (dict(hours=24), u'in 1 day'),

        (dict(hours=24 * 5), u'in 5 days'),

        (dict(months=1), u'in 1 month'),

        (dict(months=1, days=1), u'in 1 month and 1 day'),

        (dict(years=1, months=1), u'in 1 year and 1 month')

    ])

    def test_age_in_future(self, age_args, expected):

        from kallithea.lib.utils2 import age

        from dateutil import relativedelta

        n = datetime.datetime(year=2012, month=5, day=17)

        delt = lambda *args, **kwargs: relativedelta.relativedelta(*args, **kwargs)

        self.assertEqual(age(n + delt(**age_args), now=n), expected)

    def test_tag_exctrator(self):

        sample = (

            "hello pta[tag] gog [[]] [[] sda ero[or]d [me =>>< sa]"

            "[requires] [stale] [see<>=>] [see => http://url.com]"

            "[requires => url] [lang => python] [just a tag]"

            "[,d] [ => ULR ] [obsolete] [desc]]"

        )

        self.assertTrue('<div class="metatag" tag="tag">tag</div>' in res)

        self.assertTrue('<div class="metatag" tag="obsolete">obsolete</div>' in res)

        self.assertTrue('<div class="metatag" tag="stale">stale</div>' in res)

        self.assertTrue('<div class="metatag" tag="lang">python</div>' in res)

        self.assertTrue('<div class="metatag" tag="requires">requires =&gt; <a href="/url">url</a></div>' in res)

        self.assertTrue('<div class="metatag" tag="tag">tag</div>' in res)

    def test_alternative_gravatar(self):

        from kallithea.lib.helpers import gravatar_url

        _md5 = lambda s: hashlib.md5(s).hexdigest()

        #mock pylons.url

        class fake_url(object):

            @classmethod

            def current(cls, *args, **kwargs):

                return 'https://server.com'

        #mock pylons.tmpl_context

        def fake_tmpl_context(_url):

            _c = AttributeDict()

            _c.visual = AttributeDict()

            _c.visual.use_gravatar = True

            _c.visual.gravatar_url = _url

            return _c

        with mock.patch('pylons.url', fake_url):

            fake = fake_tmpl_context(_url='http://test.com/{email}')

            with mock.patch('pylons.tmpl_context', fake):

                    from pylons import url

                    assert url.current() == 'https://server.com'

                    grav = gravatar_url(email_address='test@foo.com', size=24)

                    assert grav == 'http://test.com/test@foo.com'

            fake = fake_tmpl_context(_url='http://test.com/{email}')

            with mock.patch('pylons.tmpl_context', fake):

                grav = gravatar_url(email_address='test@foo.com', size=24)

                assert grav == 'http://test.com/test@foo.com'

            fake = fake_tmpl_context(_url='http://test.com/{md5email}')

            with mock.patch('pylons.tmpl_context', fake):

                em = 'test@foo.com'

                grav = gravatar_url(email_address=em, size=24)

                assert grav == 'http://test.com/%s' % (_md5(em))

            fake = fake_tmpl_context(_url='http://test.com/{md5email}/{size}')

            with mock.patch('pylons.tmpl_context', fake):

                em = 'test@foo.com'

                grav = gravatar_url(email_address=em, size=24)

                assert grav == 'http://test.com/%s/%s' % (_md5(em), 24)

            fake = fake_tmpl_context(_url='{scheme}://{netloc}/{md5email}/{size}')

            with mock.patch('pylons.tmpl_context', fake):

                em = 'test@foo.com'

                grav = gravatar_url(email_address=em, size=24)

                assert grav == 'https://server.com/%s/%s' % (_md5(em), 24)

    @parameterized.expand([

        (Repository.DEFAULT_CLONE_URI, 'group/repo1', {}, '', 'http://vps1:8000/group/repo1'),

        (Repository.DEFAULT_CLONE_URI, 'group/repo1', {'user': 'username'}, '', 'http://username@vps1:8000/group/repo1'),

        (Repository.DEFAULT_CLONE_URI, 'group/repo1', {}, '/prefix', 'http://vps1:8000/prefix/group/repo1'),

        (Repository.DEFAULT_CLONE_URI, 'group/repo1', {'user': 'user'}, '/prefix', 'http://user@vps1:8000/prefix/group/repo1'),

        (Repository.DEFAULT_CLONE_URI, 'group/repo1', {'user': 'username'}, '/prefix', 'http://username@vps1:8000/prefix/group/repo1'),

        (Repository.DEFAULT_CLONE_URI, 'group/repo1', {'user': 'user'}, '/prefix/', 'http://user@vps1:8000/prefix/group/repo1'),

        (Repository.DEFAULT_CLONE_URI, 'group/repo1', {'user': 'username'}, '/prefix/', 'http://username@vps1:8000/prefix/group/repo1'),

        ('{scheme}://{user}@{netloc}/_{repoid}', 'group/repo1', {}, '', 'http://vps1:8000/_23'),

        ('{scheme}://{user}@{netloc}/_{repoid}', 'group/repo1', {'user': 'username'}, '', 'http://username@vps1:8000/_23'),

        ('http://{user}@{netloc}/_{repoid}', 'group/repo1', {'user': 'username'}, '', 'http://username@vps1:8000/_23'),

        ('http://{netloc}/_{repoid}', 'group/repo1', {'user': 'username'}, '', 'http://vps1:8000/_23'),

        ('https://{user}@proxy1.server.com/{repo}', 'group/repo1', {'user': 'username'}, '', 'https://username@proxy1.server.com/group/repo1'),

        ('https://{user}@proxy1.server.com/{repo}', 'group/repo1', {}, '', 'https://proxy1.server.com/group/repo1'),

        ('https://proxy1.server.com/{user}/{repo}', 'group/repo1', {'user': 'username'}, '', 'https://proxy1.server.com/username/group/repo1'),

    ])

    def test_clone_url_generator(self, tmpl, repo_name, overrides, prefix, expected):

        from kallithea.lib.utils2 import get_clone_url

        clone_url = get_clone_url(uri_tmpl=tmpl, qualified_home_url='http://vps1:8000'+prefix,

                                  repo_name=repo_name, repo_id=23, **overrides)

        self.assertEqual(clone_url, expected)

    def _quick_url(self, text, tmpl="""<a class="revision-link" href="%s">%s</a>""", url_=None):

        """

        Changes `some text url[foo]` => `some text <a href="/">foo</a>

        :param text:

        """

        import re

        # quickly change expected url[] into a link

        URL_PAT = re.compile(r'(?:url\[)(.+?)(?:\])')

        def url_func(match_obj):

            _url = match_obj.groups()[0]

            return tmpl % (url_ or '/some-url', _url)

        return URL_PAT.sub(url_func, text)

    @parameterized.expand([