from webhelpers.number import format_byte_size, format_bit_size

from webhelpers.pylonslib import Flash as _Flash

from webhelpers.pylonslib.secure_form import secure_form, authentication_token

from webhelpers.text import chop_at, collapse, convert_accented_entities, \

    convert_misc_entities, lchop, plural, rchop, remove_formatting, \

    replace_whitespace, urlify, truncate, wrap_paragraphs

from webhelpers.date import time_ago_in_words

from webhelpers.html.tags import _set_input_attrs, _set_id_attr, \

    convert_boolean_attrs, NotGiven, _make_safe_id_component

from kallithea.config.routing import url

from kallithea.lib.annotate import annotate_highlight

from kallithea.lib.utils import repo_name_slug, get_custom_lexer

from kallithea.lib.utils2 import str2bool, safe_unicode, safe_str, \

    get_changeset_safe, datetime_to_time, time_to_datetime, AttributeDict, \

    safe_int, MENTIONS_REGEX

from kallithea.lib.markup_renderer import MarkupRenderer, url_re

from kallithea.lib.vcs.exceptions import ChangesetDoesNotExistError

from kallithea.lib.vcs.backends.base import BaseChangeset, EmptyChangeset

from kallithea.config.conf import DATE_FORMAT, DATETIME_FORMAT

from kallithea.model.changeset_status import ChangesetStatusModel

from kallithea.model.db import URL_SEP, Permission

log = logging.getLogger(__name__)

def canonical_url(*args, **kargs):

    '''Like url(x, qualified=True), but returns url that not only is qualified

    but also canonical, as configured in canonical_url'''

    from kallithea import CONFIG

    try:

        parts = CONFIG.get('canonical_url', '').split('://', 1)

        kargs['host'] = parts[1].split('/', 1)[0]

        kargs['protocol'] = parts[0]

    except IndexError:

        kargs['qualified'] = True

    return url(*args, **kargs)

def canonical_hostname():

    '''Return canonical hostname of system'''

    from kallithea import CONFIG

    try:

        parts = CONFIG.get('canonical_url', '').split('://', 1)

        return parts[1].split('/', 1)[0]

    except IndexError:

        parts = url('home', qualified=True).split('://', 1)

        return parts[1].split('/', 1)[0]

def html_escape(s):

    """Return string with all html escaped.

    This is also safe for javascript in html but not necessarily correct.

    """

    return (s

        .replace('&', '&')

        .replace(">", ">")

        .replace("<", "&lt;")

        .replace('"', """)

        .replace("'", "'")

        )

def shorter(s, size=20, firstline=False, postfix='...'):

    """Truncate s to size, including the postfix string if truncating.

    If firstline, truncate at newline.

    """

    if firstline:

        s = s.split('\n', 1)[0].rstrip()

    if len(s) > size:

        return s[:size - len(postfix)] + postfix

    return s

def _reset(name, value=None, id=NotGiven, type="reset", **attrs):

    """

    Reset button

    """

    _set_input_attrs(attrs, type, name, value)

    _set_id_attr(attrs, id, name)

    convert_boolean_attrs(attrs, ["disabled"])

    return HTML.input(**attrs)

reset = _reset

safeid = _make_safe_id_component

def FID(raw_id, path):

    """

    Creates a unique ID for filenode based on it's hash of path and revision

    it's safe to use in urls

    :param raw_id:

    :param path:

    """

    return 'C-%s-%s' % (short_id(raw_id), hashlib.md5(safe_str(path)).hexdigest()[:12])

class _FilesBreadCrumbs(object):

    def __call__(self, repo_name, rev, paths):

        if isinstance(paths, str):

            paths = safe_unicode(paths)

        url_l = [link_to(repo_name, url('files_home',

                                        repo_name=repo_name,

                                        revision=rev, f_path=''),

                         class_='ypjax-link')]

        paths_l = paths.split('/')

        for cnt, p in enumerate(paths_l):

            if p != '':

                url_l.append(link_to(p,

                                     url('files_home',

                                         repo_name=repo_name,

                                         revision=rev,

                                         f_path='/'.join(paths_l[:cnt + 1])

                                         ),

                                     class_='ypjax-link'

                                     )

                             )

        return literal('/'.join(url_l))

files_breadcrumbs = _FilesBreadCrumbs()

class CodeHtmlFormatter(HtmlFormatter):

    """

    My code Html Formatter for source codes

    """

    def wrap(self, source, outfile):

        return self._wrap_div(self._wrap_pre(self._wrap_code(source)))

    def _wrap_code(self, source):

        for cnt, it in enumerate(source):

            i, t = it

            t = '<div id="L%s">%s</div>' % (cnt + 1, t)

            yield i, t

    def _wrap_tablelinenos(self, inner):

        dummyoutfile = StringIO.StringIO()

        lncount = 0

        for t, line in inner:

            if t:

                lncount += 1

            dummyoutfile.write(line)

        fl = self.linenostart

        mw = len(str(lncount + fl - 1))

        sp = self.linenospecial

        st = self.linenostep

        la = self.lineanchors

        aln = self.anchorlinenos

        nocls = self.noclasses

        if sp:

            lines = []

            for i in range(fl, fl + lncount):

                if i % st == 0:

                    if i % sp == 0:

                        if aln:

                            lines.append('<a href="#%s%d" class="special">%*d</a>' %

                                         (la, i, mw, i))

                        else:

                            lines.append('<span class="special">%*d</span>' % (mw, i))

                    else:

                        if aln:

                            lines.append('<a href="#%s%d">%*d</a>' % (la, i, mw, i))

                        else:

                            lines.append('%*d' % (mw, i))

                else:

                    lines.append('')

            ls = '\n'.join(lines)

        else:

            lines = []

            for i in range(fl, fl + lncount):

                if i % st == 0:

                    if aln:

                        lines.append('<a href="#%s%d">%*d</a>' % (la, i, mw, i))

                    else:

                        lines.append('%*d' % (mw, i))

                else:

                    lines.append('')

            ls = '\n'.join(lines)

        # in case you wonder about the seemingly redundant <div> here: since the

        # content in the other cell also is wrapped in a div, some browsers in

        # some configurations seem to mess up the formatting...

        if nocls:

            yield 0, ('<table class="%stable">' % self.cssclass +

                      '<tr><td><div class="linenodiv" '

                      'style="background-color: #f0f0f0; padding-right: 10px">'

                      '<pre style="line-height: 125%">' +

                      ls + '</pre></div></td><td id="hlcode" class="code">')