# -*- 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.controllers.admin.notifications

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

notifications controller for Kallithea

This file was forked by the Kallithea project in July 2014.

Original author and date, and relevant copyright and licensing information is below:

:created_on: Nov 23, 2010

:author: marcink

:copyright: (c) 2013 RhodeCode GmbH, and others.

:license: GPLv3, see LICENSE.md for more details.

"""

import logging

import traceback

from pylons import request

from pylons import tmpl_context as c

from webob.exc import HTTPBadRequest, HTTPForbidden

from kallithea.model.db import Notification

from kallithea.model.notification import NotificationModel

from kallithea.model.meta import Session

from kallithea.lib.auth import LoginRequired, NotAnonymous

from kallithea.lib.base import BaseController, render

from kallithea.lib import helpers as h

from kallithea.lib.helpers import Page

from kallithea.lib.utils2 import safe_int

log = logging.getLogger(__name__)

class NotificationsController(BaseController):

    """REST Controller styled on the Atom Publishing Protocol"""

    # To properly map this controller, ensure your config/routing.py

    # file has a resource setup:

    #     map.resource('notification', 'notifications', controller='_admin/notifications',

    #         path_prefix='/_admin', name_prefix='_admin_')

    @LoginRequired()

    @NotAnonymous()

    def __before__(self):

        super(NotificationsController, self).__before__()

    def index(self, format='html'):

        c.user = self.authuser

        notif = NotificationModel().query_for_user(self.authuser.user_id,

                                            filter_=request.GET.getall('type'))

        p = safe_int(request.GET.get('page'), 1)

        c.notifications = Page(notif, page=p, items_per_page=10)

        c.pull_request_type = Notification.TYPE_PULL_REQUEST

        c.comment_type = [Notification.TYPE_CHANGESET_COMMENT,

                          Notification.TYPE_PULL_REQUEST_COMMENT]

        _current_filter = request.GET.getall('type')

        c.current_filter = 'all'

        if _current_filter == [c.pull_request_type]:

            c.current_filter = 'pull_request'

        elif _current_filter == c.comment_type:

            c.current_filter = 'comment'

        return render('admin/notifications/notifications.html')

    def mark_all_read(self):

        if request.environ.get('HTTP_X_PARTIAL_XHR'):

            nm = NotificationModel()

            # mark all read

            nm.mark_all_read_for_user(self.authuser.user_id,

                                      filter_=request.GET.getall('type'))

            Session().commit()

            c.user = self.authuser

            notif = nm.query_for_user(self.authuser.user_id,

                                      filter_=request.GET.getall('type'))

            c.notifications = Page(notif, page=1, items_per_page=10)

            return render('admin/notifications/notifications_data.html')

    def update(self, notification_id):

        try:

            no = Notification.get(notification_id)

                        for un in no.notifications_to_users)

            if h.HasPermissionAny('hg.admin')() or owner:

                # deletes only notification2user

                NotificationModel().mark_read(c.authuser.user_id, no)

                Session().commit()

                return 'ok'

        except Exception:

            Session().rollback()

            log.error(traceback.format_exc())

        raise HTTPBadRequest()

    def delete(self, notification_id):

        try:

            no = Notification.get(notification_id)

                        for un in no.notifications_to_users)

            if h.HasPermissionAny('hg.admin')() or owner:

                # deletes only notification2user

                NotificationModel().delete(c.authuser.user_id, no)

                Session().commit()

                return 'ok'

        except Exception:

            Session().rollback()

            log.error(traceback.format_exc())

        raise HTTPBadRequest()

    def show(self, notification_id, format='html'):

        notification = Notification.get_or_404(notification_id)

        unotification = NotificationModel() \

            .get_user_notification(self.authuser.user_id, notification)

        # if this association to user is not valid, we don't want to show

        # this message

        if unotification is None:

            raise HTTPForbidden()

        if not unotification.read:

            unotification.mark_as_read()

            Session().commit()

        c.notification = notification

        c.user = self.authuser

        return render('admin/notifications/show_notification.html')

    def edit_permissions_update(self, repo_name):

        form = RepoPermsForm()().to_python(request.POST)

        RepoModel()._update_permissions(repo_name, form['perms_new'],

                                        form['perms_updates'])

        #TODO: implement this

        #action_logger(self.authuser, 'admin_changed_repo_permissions',

        #              repo_name, self.ip_addr, self.sa)

        Session().commit()

        h.flash(_('Repository permissions updated'), category='success')

        raise HTTPFound(location=url('edit_repo_perms', repo_name=repo_name))

    def edit_permissions_revoke(self, repo_name):

        try:

            obj_type = request.POST.get('obj_type')

            obj_id = None

            if obj_type == 'user':

                obj_id = safe_int(request.POST.get('user_id'))

            elif obj_type == 'user_group':

                obj_id = safe_int(request.POST.get('user_group_id'))

            if obj_type == 'user':

                RepoModel().revoke_user_permission(repo=repo_name, user=obj_id)

            elif obj_type == 'user_group':

                RepoModel().revoke_user_group_permission(

                    repo=repo_name, group_name=obj_id

                )

            #TODO: implement this

            #action_logger(self.authuser, 'admin_revoked_repo_permissions',

            #              repo_name, self.ip_addr, self.sa)

            Session().commit()

        except Exception:

            log.error(traceback.format_exc())

            h.flash(_('An error occurred during revoking of permission'),

                    category='error')

            raise HTTPInternalServerError()

    @HasRepoPermissionAnyDecorator('repository.admin')

    def edit_fields(self, repo_name):

        c.repo_info = self._load_repo()

        c.repo_fields = RepositoryField.query() \

            .filter(RepositoryField.repository == c.repo_info).all()

        c.active = 'fields'

        if request.POST:

            raise HTTPFound(location=url('repo_edit_fields'))

        return render('admin/repos/repo_edit.html')

    @HasRepoPermissionAnyDecorator('repository.admin')

    def create_repo_field(self, repo_name):

        try:

            form_result = RepoFieldForm()().to_python(dict(request.POST))

            new_field = RepositoryField()

            new_field.repository = Repository.get_by_repo_name(repo_name)

            new_field.field_key = form_result['new_field_key']

            new_field.field_type = form_result['new_field_type']  # python type

            new_field.field_value = form_result['new_field_value']  # set initial blank value

            new_field.field_desc = form_result['new_field_desc']

            new_field.field_label = form_result['new_field_label']

            Session().add(new_field)

            Session().commit()

        except Exception as e:

            log.error(traceback.format_exc())

            msg = _('An error occurred during creation of field')

            if isinstance(e, formencode.Invalid):

                msg += ". " + e.msg

            h.flash(msg, category='error')

        raise HTTPFound(location=url('edit_repo_fields', repo_name=repo_name))

    @HasRepoPermissionAnyDecorator('repository.admin')

    def delete_repo_field(self, repo_name, field_id):

        field = RepositoryField.get_or_404(field_id)

        try:

            Session().delete(field)

            Session().commit()

        except Exception as e:

            log.error(traceback.format_exc())

            msg = _('An error occurred during removal of field')

            h.flash(msg, category='error')

        raise HTTPFound(location=url('edit_repo_fields', repo_name=repo_name))

    @HasRepoPermissionAnyDecorator('repository.admin')

    def edit_advanced(self, repo_name):

        c.repo_info = self._load_repo()

        c.default_user_id = User.get_default_user().user_id

        c.in_public_journal = UserFollowing.query() \

            .filter(UserFollowing.user_id == c.default_user_id) \

            .filter(UserFollowing.follows_repository == c.repo_info).scalar()

        _repos = Repository.query(sorted=True).all()

        read_access_repos = RepoList(_repos)

        c.repos_list = [(None, _('-- Not a fork --'))]

        c.repos_list += [(x.repo_id, x.repo_name)

                         for x in read_access_repos

                         if x.repo_id != c.repo_info.repo_id]

        defaults = {

        }

        c.active = 'advanced'

        if request.POST:

            raise HTTPFound(location=url('repo_edit_advanced'))

        return htmlfill.render(

            render('admin/repos/repo_edit.html'),

            defaults=defaults,

            encoding="UTF-8",

            force_defaults=False)

    @HasRepoPermissionAnyDecorator('repository.admin')

    def edit_advanced_journal(self, repo_name):

        """

        Sets this repository to be visible in public journal,

        in other words asking default user to follow this repo

        :param repo_name:

        """

        try:

            repo_id = Repository.get_by_repo_name(repo_name).repo_id

            user_id = User.get_default_user().user_id

            self.scm_model.toggle_following_repo(repo_id, user_id)

            h.flash(_('Updated repository visibility in public journal'),

                    category='success')

            Session().commit()

        except Exception:

            h.flash(_('An error occurred during setting this'

                      ' repository in public journal'),

                    category='error')

        raise HTTPFound(location=url('edit_repo_advanced', repo_name=repo_name))

    @HasRepoPermissionAnyDecorator('repository.admin')

    def edit_advanced_fork(self, repo_name):

        """

        Mark given repository as a fork of another

        :param repo_name:

        """

        try:

            fork_id = request.POST.get('id_fork_of')

            repo = ScmModel().mark_as_fork(repo_name, fork_id,

                                           self.authuser.username)

            fork = repo.fork.repo_name if repo.fork else _('Nothing')

            Session().commit()

            h.flash(_('Marked repository %s as fork of %s') % (repo_name, fork),

                    category='success')

        except RepositoryError as e:

            log.error(traceback.format_exc())

            h.flash(str(e), category='error')

        except Exception as e:

            log.error(traceback.format_exc())

            h.flash(_('An error occurred during this operation'),

                    category='error')

        raise HTTPFound(location=url('edit_repo_advanced', repo_name=repo_name))

    @HasRepoPermissionAnyDecorator('repository.admin')

    def edit_advanced_locking(self, repo_name):

        """

        Unlock repository when it is locked !

        :param repo_name:

        """

        try:

            repo = Repository.get_by_repo_name(repo_name)

            if request.POST.get('set_lock'):

                Repository.lock(repo, c.authuser.user_id)

                h.flash(_('Repository has been locked'), category='success')

            elif request.POST.get('set_unlock'):

                Repository.unlock(repo)

                h.flash(_('Repository has been unlocked'), category='success')

        except Exception as e:

            log.error(traceback.format_exc())

            h.flash(_('An error occurred during unlocking'),

                    category='error')

        raise HTTPFound(location=url('edit_repo_advanced', repo_name=repo_name))

    @HasRepoPermissionAnyDecorator('repository.write', 'repository.admin')

    def toggle_locking(self, repo_name):

        try:

            repo = Repository.get_by_repo_name(repo_name)

            if repo.enable_locking:

                if repo.locked[0]:

                    Repository.unlock(repo)

                    h.flash(_('Repository has been unlocked'), category='success')

                else:

                    Repository.lock(repo, c.authuser.user_id)

                    h.flash(_('Repository has been locked'), category='success')

        except Exception as e:

            log.error(traceback.format_exc())

            h.flash(_('An error occurred during unlocking'),

        elif method == 'show':

            self.__load_data()

            if len(c.cs_ranges) == 1:

                return render('changeset/changeset.html')

            else:

                c.cs_ranges_org = None

                c.cs_comments = {}

                revs = [ctx.revision for ctx in reversed(c.cs_ranges)]

                c.jsdata = json.dumps(graph_data(c.db_repo_scm_instance, revs))

                return render('changeset/changeset_range.html')

    @LoginRequired()

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    def index(self, revision, method='show'):

        return self._index(revision, method=method)

    @LoginRequired()

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    def changeset_raw(self, revision):

        return self._index(revision, method='raw')

    @LoginRequired()

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    def changeset_patch(self, revision):

        return self._index(revision, method='patch')

    @LoginRequired()

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    def changeset_download(self, revision):

        return self._index(revision, method='download')

    @LoginRequired()

    @NotAnonymous()

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    @jsonify

    def comment(self, repo_name, revision):

        assert request.environ.get('HTTP_X_PARTIAL_XHR')

        status = request.POST.get('changeset_status')

        text = request.POST.get('text', '').strip()

        c.comment = create_comment(

            text,

            status,

            revision=revision,

            f_path=request.POST.get('f_path'),

            line_no=request.POST.get('line'),

        )

        # get status if set !

        if status:

            # if latest status was from pull request and it's closed

            # disallow changing status ! RLY?

            try:

                ChangesetStatusModel().set_status(

                    c.db_repo.repo_id,

                    status,

                    c.authuser.user_id,

                    c.comment,

                    revision=revision,

                    dont_allow_on_closed_pull_request=True,

                )

            except StatusChangeOnClosedPullRequestError:

                log.debug('cannot change status on %s with closed pull request', revision)

                raise HTTPBadRequest()

        action_logger(self.authuser,

                      'user_commented_revision:%s' % revision,

                      c.db_repo, self.ip_addr, self.sa)

        Session().commit()

        data = {

           'target_id': h.safeid(h.safe_unicode(request.POST.get('f_path'))),

        }

        if c.comment is not None:

            data.update(c.comment.get_dict())

            data.update({'rendered_text':

                         render('changeset/changeset_comment_block.html')})

        return data

    @LoginRequired()

    @NotAnonymous()

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    @jsonify

    def delete_comment(self, repo_name, comment_id):

        co = ChangesetComment.get_or_404(comment_id)

        if co.repo.repo_name != repo_name:

            raise HTTPNotFound()

        repo_admin = h.HasRepoPermissionAny('repository.admin')(repo_name)

        if h.HasPermissionAny('hg.admin')() or repo_admin or owner:

            ChangesetCommentsModel().delete(comment=co)

            Session().commit()

            return True

        else:

            raise HTTPForbidden()

    @LoginRequired()

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    @jsonify

    def changeset_info(self, repo_name, revision):

        if request.is_xhr:

            try:

                return c.db_repo_scm_instance.get_changeset(revision)

            except ChangesetDoesNotExistError as e:

                return EmptyChangeset(message=str(e))

        else:

            raise HTTPBadRequest()

    @LoginRequired()

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    @jsonify

    def changeset_children(self, repo_name, revision):

        if request.is_xhr:

            changeset = c.db_repo_scm_instance.get_changeset(revision)

            result = {"results": []}

            if changeset.children:

                result = {"results": changeset.children}

            return result

        else:

            raise HTTPBadRequest()

    @LoginRequired()

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    @jsonify

    def changeset_parents(self, repo_name, revision):

        if request.is_xhr:

            changeset = c.db_repo_scm_instance.get_changeset(revision)

            result = {"results": []}

            if changeset.parents:

                result = {"results": changeset.parents}

            return result

        else:

            raise HTTPBadRequest()

# -*- 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.controllers.journal

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

Journal controller

This file was forked by the Kallithea project in July 2014.

Original author and date, and relevant copyright and licensing information is below:

:created_on: Nov 21, 2010

:author: marcink

:copyright: (c) 2013 RhodeCode GmbH, and others.

:license: GPLv3, see LICENSE.md for more details.

"""

import logging

import traceback

from itertools import groupby

from sqlalchemy import or_

from sqlalchemy.orm import joinedload

from sqlalchemy.sql.expression import func

from webhelpers.feedgenerator import Atom1Feed, Rss201rev2Feed

from webob.exc import HTTPBadRequest

from pylons import request, tmpl_context as c, response

from pylons.i18n.translation import _

from kallithea.config.routing import url

from kallithea.controllers.admin.admin import _journal_filter

from kallithea.model.db import UserLog, UserFollowing, Repository, User

from kallithea.model.meta import Session

from kallithea.model.repo import RepoModel

import kallithea.lib.helpers as h

from kallithea.lib.helpers import Page

from kallithea.lib.auth import LoginRequired, NotAnonymous

from kallithea.lib.base import BaseController, render

from kallithea.lib.utils2 import safe_int, AttributeDict

from kallithea.lib.compat import json

log = logging.getLogger(__name__)

class JournalController(BaseController):

    def __before__(self):

        super(JournalController, self).__before__()

        self.language = 'en-us'

        self.ttl = "5"

        self.feed_nr = 20

        c.search_term = request.GET.get('filter')

    def _get_daily_aggregate(self, journal):

        groups = []

        for k, g in groupby(journal, lambda x: x.action_as_day):

            user_group = []

            #groupby username if it's a present value, else fallback to journal username

            for _unused, g2 in groupby(list(g), lambda x: x.user.username if x.user else x.username):

                l = list(g2)

                user_group.append((l[0].user, l))

            groups.append((k, user_group,))

        return groups

    def _get_journal_data(self, following_repos):

        filtering_criterion = None

        if repo_ids and user_ids:

            filtering_criterion = or_(UserLog.repository_id.in_(repo_ids),

                        UserLog.user_id.in_(user_ids))

        if repo_ids and not user_ids:

            filtering_criterion = UserLog.repository_id.in_(repo_ids)

        if not repo_ids and user_ids:

            filtering_criterion = UserLog.user_id.in_(user_ids)

        if filtering_criterion is not None:

            journal = self.sa.query(UserLog) \

                .options(joinedload(UserLog.user)) \

                .options(joinedload(UserLog.repository))

            #filter

            journal = _journal_filter(journal, c.search_term)

            journal = journal.filter(filtering_criterion) \

                        .order_by(UserLog.action_date.desc())

        else:

            journal = []

        return journal

    def _atom_feed(self, repos, public=True):

        journal = self._get_journal_data(repos)

        if public:

            _link = h.canonical_url('public_journal_atom')

            _desc = '%s %s %s' % (c.site_name, _('Public Journal'),

                                  'atom feed')

        else:

            _link = h.canonical_url('journal_atom')

            _desc = '%s %s %s' % (c.site_name, _('Journal'), 'atom feed')

        feed = Atom1Feed(title=_desc,

                         link=_link,

                         description=_desc,

                         language=self.language,

                         ttl=self.ttl)

        for entry in journal[:self.feed_nr]:

            user = entry.user

            if user is None:

                #fix deleted users

                user = AttributeDict({'short_contact': entry.username,

                                      'email': '',

                                      'full_contact': ''})

            action, action_extra, ico = h.action_parser(entry, feed=True)

            title = "%s - %s %s" % (user.short_contact, action(),

                                    entry.repository.repo_name)

            desc = action_extra()

            _url = None

            if entry.repository is not None:

                _url = h.canonical_url('changelog_home',

                           repo_name=entry.repository.repo_name)

            feed.add_item(title=title,

                          pubdate=entry.action_date,

                          link=_url or h.canonical_url(''),

                          author_email=user.email,

                          author_name=user.full_contact,

                          description=desc)

        response.content_type = feed.mime_type

        return feed.writeString('utf-8')

    def _rss_feed(self, repos, public=True):

        journal = self._get_journal_data(repos)

        if public:

            _link = h.canonical_url('public_journal_atom')

            _desc = '%s %s %s' % (c.site_name, _('Public Journal'),

                                  'rss feed')

        else:

            _link = h.canonical_url('journal_atom')

            _desc = '%s %s %s' % (c.site_name, _('Journal'), 'rss feed')

        feed = Rss201rev2Feed(title=_desc,

                         link=_link,

                         description=_desc,

                         language=self.language,

                         ttl=self.ttl)

        for entry in journal[:self.feed_nr]:

            user = entry.user

            if user is None:

                #fix deleted users

                user = AttributeDict({'short_contact': entry.username,

                                      'email': '',

                                      'full_contact': ''})

            action, action_extra, ico = h.action_parser(entry, feed=True)

            title = "%s - %s %s" % (user.short_contact, action(),

                                    entry.repository.repo_name)

            desc = action_extra()

            _url = None

            if entry.repository is not None:

                _url = h.canonical_url('changelog_home',

                           repo_name=entry.repository.repo_name)

            raise HTTPBadRequest()

        except Exception:

            h.flash(_('Error occurred while creating pull request'),

                    category='error')

            log.error(traceback.format_exc())

            raise HTTPFound(location=url('pullrequest_home', repo_name=repo_name))

        raise HTTPFound(location=pull_request.url())

    def create_new_iteration(self, old_pull_request, new_rev, title, description, reviewers_ids):

        org_repo = RepoModel()._get_repo(old_pull_request.org_repo.repo_name)

        org_ref_type, org_ref_name, org_rev = old_pull_request.org_ref.split(':')

        new_org_rev = self._get_ref_rev(org_repo, 'rev', new_rev)

        other_repo = RepoModel()._get_repo(old_pull_request.other_repo.repo_name)

        other_ref_type, other_ref_name, other_rev = old_pull_request.other_ref.split(':') # other_rev is ancestor

        #assert other_ref_type == 'branch', other_ref_type # TODO: what if not?

        new_other_rev = self._get_ref_rev(other_repo, other_ref_type, other_ref_name)

        cs_ranges, _cs_ranges_not, ancestor_rev = CompareController._get_changesets(org_repo.scm_instance.alias,

            other_repo.scm_instance, new_other_rev, # org and other "swapped"

            org_repo.scm_instance, new_org_rev)

        old_revisions = set(old_pull_request.revisions)

        revisions = [cs.raw_id for cs in cs_ranges]

        new_revisions = [r for r in revisions if r not in old_revisions]

        lost = old_revisions.difference(revisions)

        infos = ['This is a new iteration of %s "%s".' %

                 (h.canonical_url('pullrequest_show', repo_name=old_pull_request.other_repo.repo_name,

                      pull_request_id=old_pull_request.pull_request_id),

                  old_pull_request.title)]

        if lost:

            infos.append(_('Missing changesets since the previous iteration:'))

            for r in old_pull_request.revisions:

                if r in lost:

                    rev_desc = org_repo.get_changeset(r).message.split('\n')[0]

                    infos.append('  %s %s' % (h.short_id(r), rev_desc))

        if new_revisions:

            infos.append(_('New changesets on %s %s since the previous iteration:') % (org_ref_type, org_ref_name))

            for r in reversed(revisions):

                if r in new_revisions:

                    rev_desc = org_repo.get_changeset(r).message.split('\n')[0]

                    infos.append('  %s %s' % (h.short_id(r), h.shorter(rev_desc, 80)))

            if ancestor_rev == other_rev:

                infos.append(_("Ancestor didn't change - diff since previous iteration:"))

                infos.append(h.canonical_url('compare_url',

                                 repo_name=org_repo.repo_name, # other_repo is always same as repo_name

                                 org_ref_type='rev', org_ref_name=h.short_id(org_rev), # use old org_rev as base

                                 other_ref_type='rev', other_ref_name=h.short_id(new_org_rev),

                                 )) # note: linear diff, merge or not doesn't matter

            else:

                infos.append(_('This iteration is based on another %s revision and there is no simple diff.') % other_ref_name)

        else:

           infos.append(_('No changes found on %s %s since previous iteration.') % (org_ref_type, org_ref_name))

           # TODO: fail?

        # hack: ancestor_rev is not an other_ref but we want to show the

        # requested destination and have the exact ancestor

        new_other_ref = '%s:%s:%s' % (other_ref_type, other_ref_name, ancestor_rev)

        new_org_ref = '%s:%s:%s' % (org_ref_type, org_ref_name, new_org_rev)

        try:

            title, old_v = re.match(r'(.*)\(v(\d+)\)\s*$', title).groups()

            v = int(old_v) + 1

        except (AttributeError, ValueError):

            v = 2

        title = '%s (v%s)' % (title.strip(), v)

        # using a mail-like separator, insert new iteration info in description with latest first

        descriptions = description.replace('\r\n', '\n').split('\n-- \n', 1)

        description = descriptions[0].strip() + '\n\n-- \n' + '\n'.join(infos)

        if len(descriptions) > 1:

            description += '\n\n' + descriptions[1].strip()

        try:

            pull_request = PullRequestModel().create(

                self.authuser.user_id,

                old_pull_request.org_repo.repo_name, new_org_ref,

                old_pull_request.other_repo.repo_name, new_other_ref,

                revisions, reviewers_ids, title, description

            )

        except UserInvalidException as u:

            h.flash(_('Invalid reviewer "%s" specified') % u, category='error')

            raise HTTPBadRequest()

        except Exception:

            h.flash(_('Error occurred while creating pull request'),

                    category='error')

            log.error(traceback.format_exc())

            raise HTTPFound(location=old_pull_request.url())

        ChangesetCommentsModel().create(

            text=_('Closed, next iteration: %s .') % pull_request.url(canonical=True),

            author=c.authuser.user_id,

            pull_request=old_pull_request.pull_request_id,

            closing_pr=True)

        PullRequestModel().close_pull_request(old_pull_request.pull_request_id)

        Session().commit()

        h.flash(_('New pull request iteration created'),

                category='success')

        raise HTTPFound(location=pull_request.url())

    # pullrequest_post for PR editing

    @LoginRequired()

    @NotAnonymous()

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    def post(self, repo_name, pull_request_id):

        pull_request = PullRequest.get_or_404(pull_request_id)

        if pull_request.is_closed():

            raise HTTPForbidden()

        assert pull_request.other_repo.repo_name == repo_name

        #only owner or admin can update it

        owner = pull_request.owner_id == c.authuser.user_id

        repo_admin = h.HasRepoPermissionAny('repository.admin')(c.repo_name)

        if not (h.HasPermissionAny('hg.admin')() or repo_admin or owner):

            raise HTTPForbidden()

        _form = PullRequestPostForm()().to_python(request.POST)

        reviewers_ids = [int(s) for s in _form['review_members']]

        if _form['updaterev']:

            return self.create_new_iteration(pull_request,

                                      _form['updaterev'],

                                      _form['pullrequest_title'],

                                      _form['pullrequest_desc'],

                                      reviewers_ids)

        old_description = pull_request.description

        pull_request.title = _form['pullrequest_title']

        pull_request.description = _form['pullrequest_desc'].strip() or _('No description')

        pull_request.owner = User.get_by_username(_form['owner'])

        user = User.get(c.authuser.user_id)

        try:

            PullRequestModel().mention_from_description(user, pull_request, old_description)

            PullRequestModel().update_reviewers(user, pull_request_id, reviewers_ids)

        except UserInvalidException as u:

            h.flash(_('Invalid reviewer "%s" specified') % u, category='error')

            raise HTTPBadRequest()

        Session().commit()

        h.flash(_('Pull request updated'), category='success')

        raise HTTPFound(location=pull_request.url())

    @LoginRequired()

    @NotAnonymous()

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    @jsonify

    def delete(self, repo_name, pull_request_id):

        pull_request = PullRequest.get_or_404(pull_request_id)

        #only owner can delete it !

            PullRequestModel().delete(pull_request)

            Session().commit()

            h.flash(_('Successfully deleted pull request'),

                    category='success')

            raise HTTPFound(location=url('my_pullrequests'))

        raise HTTPForbidden()

    @LoginRequired()

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    def show(self, repo_name, pull_request_id, extra=None):

        repo_model = RepoModel()

        c.users_array = repo_model.get_users_js()

        c.user_groups_array = repo_model.get_user_groups_js()

        c.pull_request = PullRequest.get_or_404(pull_request_id)

        c.allowed_to_change_status = self._get_is_allowed_change_status(c.pull_request)

        cc_model = ChangesetCommentsModel()

        cs_model = ChangesetStatusModel()

        # pull_requests repo_name we opened it against

        # ie. other_repo must match

        if repo_name != c.pull_request.other_repo.repo_name:

            raise HTTPNotFound

        # load compare data into template context

        c.cs_repo = c.pull_request.org_repo