# -*- coding: utf-8 -*-

# 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, either version 3 of the License, or

# (at your option) any later version.

#

# 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, see <http://www.gnu.org/licenses/>.

"""

Helper functions

Consists of functions to typically be used within templates, but also

available to Controllers. This module is available to both as 'h'.

"""

import hashlib

import logging

import re

import textwrap

import urllib.parse

from beaker.cache import cache_region

from pygments import highlight as code_highlight

from pygments.formatters.html import HtmlFormatter

from tg import tmpl_context as c

from tg.i18n import ugettext as _

import kallithea

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.utils2 import (MENTIONS_REGEX, AttributeDict, age, asbool, credentials_filter, fmt_date, link_to_ref, safe_bytes, safe_int, safe_str,

                                  shorter, time_to_datetime)

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 import db

from kallithea.model.changeset_status import ChangesetStatusModel

# mute pyflakes "imported but unused"

# from webutils

assert Option

assert canonical_url

assert checkbox

assert chop_at

assert end_form

assert form

assert format_byte_size

assert hidden

assert password

assert pop_flash_messages

assert radio

assert reset

assert safeid

assert select

assert session_csrf_secret_name

assert session_csrf_secret_token

assert submit

assert text

assert textarea

assert wrap_paragraphs

# from kallithea.lib.auth

assert HasPermissionAny

assert HasRepoGroupPermissionLevel

assert HasRepoPermissionLevel

# from utils2

assert age

assert fmt_date

assert link_to_ref

assert shorter

assert time_to_datetime

# from vcs

assert EmptyChangeset

log = logging.getLogger(__name__)

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

    """

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

def get_ignore_whitespace_diff(GET):

    """Return true if URL requested whitespace to be ignored"""

    return bool(GET.get('ignorews'))

def ignore_whitespace_link(GET, anchor=None):

    """Return snippet with link to current URL with whitespace ignoring toggled"""

    params = dict(GET)  # ignoring duplicates

    if get_ignore_whitespace_diff(GET):

        params.pop('ignorews')

        title = _("Show whitespace changes")

    else:

        params['ignorews'] = '1'

        title = _("Ignore whitespace changes")

    params['anchor'] = anchor

    return link_to(

        literal('<i class="icon-strike"></i>'),

        url.current(**params),

        title=title,

        **{'data-toggle': 'tooltip'})

def get_diff_context_size(GET):

    """Return effective context size requested in URL"""

    return safe_int(GET.get('context'), default=3)

def increase_context_link(GET, anchor=None):

    """Return snippet with link to current URL with double context size"""

    context = get_diff_context_size(GET) * 2

    params = dict(GET)  # ignoring duplicates

    params['context'] = str(context)

    params['anchor'] = anchor

    return link_to(

        literal('<i class="icon-sort"></i>'),

        url.current(**params),

        title=_('Increase diff context to %(num)s lines') % {'num': context},

        **{'data-toggle': 'tooltip'})

# -*- coding: utf-8 -*-

# 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, either version 3 of the License, or

# (at your option) any later version.

#

# 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, see <http://www.gnu.org/licenses/>.

"""

kallithea.lib.webutils

~~~~~~~~~~~~~~~~~~~~~~

Helper functions that may rely on the current WSGI request, exposed in the TG2

thread-local "global" variables. It should have few dependencies so it can be

imported anywhere - just like the global variables can be used everywhere.

"""

import logging

import random

from tg import request, session

from webhelpers2.html import HTML, escape, literal

from webhelpers2.html.tags import NotGiven, Option, Options, _input

from webhelpers2.html.tags import _make_safe_id_component as safeid

from webhelpers2.html.tags import 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

log = logging.getLogger(__name__)

# mute pyflakes "imported but unused"

assert Option

assert checkbox

assert chop_at

assert end_form

assert escape

assert format_byte_size

assert link_to

assert literal

assert password

assert radio

assert safeid

assert submit

assert text

assert textarea

assert truncate

assert wrap_paragraphs

#

# General Kallithea URL handling

#

class UrlGenerator(object):

    """Emulate pylons.url in providing a wrapper around routes.url

    This code was added during migration from Pylons to Turbogears2. Pylons

        flash_messages = session[key]

    else:

        if append is None:  # common fast path - also used for clearing empty queue

            return []  # don't bother saving

        flash_messages = []

        session[key] = flash_messages

    if append is not None and append not in flash_messages:

        flash_messages.append(append)

    if clear:

        session.pop(key, None)

    session.save()

    return flash_messages

def flash(message, category, logf=None):

    """

    Show a message to the user _and_ log it through the specified function

    category: notice (default), warning, error, success

    logf: a custom log function - such as log.debug

    logf defaults to log.info, unless category equals 'success', in which

    case logf defaults to log.debug.

    """

    assert category in ('error', 'success', 'warning'), category

    if hasattr(message, '__html__'):

        # 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)]