from beaker.cache import cache_region

from pygments import highlight as code_highlight

from pygments.formatters.html import HtmlFormatter

from tg import session

from tg.i18n import ugettext as _

from webhelpers2.html import HTML, escape, literal

from webhelpers2.html.tags import NotGiven, Option, Options, _input, _make_safe_id_component, checkbox, end_form

from webhelpers2.html.tags import form as insecure_form

from webhelpers2.html.tags import hidden, link_to, password, radio

from webhelpers2.html.tags import select as webhelpers2_select

from webhelpers2.html.tags import submit, text, textarea

from webhelpers2.number import format_byte_size

from webhelpers2.text import chop_at, truncate, wrap_paragraphs

import kallithea

from kallithea.config.routing import url

from kallithea.lib.annotate import annotate_highlight

#==============================================================================

# PERMS

#==============================================================================

from kallithea.lib.auth import HasPermissionAny, HasRepoGroupPermissionLevel, HasRepoPermissionLevel

from kallithea.lib.diffs import BIN_FILENODE, CHMOD_FILENODE, DEL_FILENODE, MOD_FILENODE, NEW_FILENODE, RENAMED_FILENODE

from kallithea.lib.markup_renderer import url_re

from kallithea.lib.pygmentsutils import get_custom_lexer

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

from kallithea.lib.vcs.exceptions import ChangesetDoesNotExistError

#==============================================================================

# SCM FILTERS available via h.

#==============================================================================

from kallithea.lib.vcs.utils import author_email, author_name

from kallithea.model.changeset_status import ChangesetStatusModel

from kallithea.model.db import URL_SEP, ChangesetStatus, Permission, PullRequest, User, UserIpMap

# mute pyflakes "imported but unused"

assert Option

assert checkbox

assert end_form

assert password

assert radio

assert submit

assert text

assert textarea

assert format_byte_size

assert chop_at

assert wrap_paragraphs

assert HasPermissionAny

assert HasRepoGroupPermissionLevel

assert HasRepoPermissionLevel

assert time_to_datetime

assert EmptyChangeset

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'''

    try:

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

        kargs['host'] = parts[1]

        kargs['protocol'] = parts[0]

    except IndexError:

        kargs['qualified'] = True

    return url(*args, **kargs)

def canonical_hostname():

    '''Return canonical hostname of system'''

    try:

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

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

        # render to HTML for storing in cookie

        safe_message = str(message)

    else:

        # Apply str - the message might be an exception with __str__

        # Escape, so we can trust the result without further escaping, without any risk of injection

        safe_message = html_escape(str(message))

    if logf is None:

        logf = log.info

        if category == 'success':

            logf = log.debug

    logf('Flash %s: %s', category, safe_message)

    _session_flash_messages(append=(category, safe_message))

def pop_flash_messages():

    """Return all accumulated messages and delete them from the session.

    The return value is a list of ``Message`` objects.

    """

    return [_Message(category, message) for category, message in _session_flash_messages(clear=True)]

def capitalize(x):

    return x.capitalize()

email = author_email

def short_id(x):

    return x[:12]

def hide_credentials(x):

    return ''.join(credentials_filter(x))

def show_id(cs):

    """

    Configurable function that shows ID

    by default it's r123:fffeeefffeee

    :param cs: changeset instance

    """

    def_len = safe_int(kallithea.CONFIG.get('show_sha_length', 12))

    show_rev = asbool(kallithea.CONFIG.get('show_revision_number', False))

    raw_id = cs.raw_id[:def_len]

    if show_rev: