# 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.changeset

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

changeset controller showing changes between revisions

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: Apr 25, 2010

:author: marcink

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

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

"""

import logging

import traceback

from collections import OrderedDict, defaultdict

from tg import request, response

from tg import tmpl_context as c

from tg.i18n import ugettext as _

from webob.exc import HTTPBadRequest, HTTPForbidden, HTTPFound, HTTPNotFound

import kallithea.lib.helpers as h

from kallithea.lib import diffs

from kallithea.lib.auth import HasRepoPermissionLevelDecorator, LoginRequired

from kallithea.lib.base import BaseRepoController, jsonify, render

from kallithea.lib.graphmod import graph_data

from kallithea.lib.utils import action_logger

from kallithea.lib.utils2 import safe_unicode

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

from kallithea.lib.vcs.exceptions import ChangesetDoesNotExistError, EmptyRepositoryError, RepositoryError

from kallithea.model.changeset_status import ChangesetStatusModel

from kallithea.model.comment import ChangesetCommentsModel

from kallithea.model.db import ChangesetComment, ChangesetStatus

from kallithea.model.meta import Session

from kallithea.model.pull_request import PullRequestModel

                    c.lines_added += st['added']

                    c.lines_deleted += st['deleted']

                    filename = f['filename']

                    fid = h.FID(changeset.raw_id, filename)

                    url_fid = h.FID('', filename)

                    html_diff = diffs.as_html(enable_comments=enable_comments, parsed_lines=[f])

                    file_diff_data.append((fid, url_fid, f['operation'], f['old_filename'], filename, html_diff, st))

            else:

                # downloads/raw we only need RAW diff nothing else

                file_diff_data.append(('', None, None, None, raw_diff, None))

            c.changes[changeset.raw_id] = (cs1, cs2, file_diff_data)

        # sort comments in creation order

        c.comments = [com for com_id, com in sorted(comments.items())]

        # count inline comments

        for __, lines in c.inline_comments:

            for comments in lines.values():

                c.inline_cnt += len(comments)

        if len(c.cs_ranges) == 1:

            c.changeset = c.cs_ranges[0]

            c.parent_tmpl = ''.join(['# Parent  %s\n' % x.raw_id

                                     for x in c.changeset.parents])

        if method == 'download':

            response.content_type = 'text/plain'

            response.content_disposition = 'attachment; filename=%s.diff' \

                                            % revision[:12]

            return raw_diff

        elif method == 'patch':

            response.content_type = 'text/plain'

            c.diff = safe_unicode(raw_diff)

            return render('changeset/patch_changeset.html')

        elif method == 'raw':

            response.content_type = 'text/plain'

            return raw_diff

        elif method == 'show':

            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 = graph_data(c.db_repo_scm_instance, revs)

                return render('changeset/changeset_range.html')

    @LoginRequired(allow_default_user=True)

    @HasRepoPermissionLevelDecorator('read')

                        %for branch in c.changeset.branches:

                          <span class="label label-branch" title="${_('Branch %s') % branch}">${h.link_to(branch,h.url('changelog_home',repo_name=c.repo_name,branch=branch))}</span>

                        %endfor

                    </span>

                    <div class="changes">

                        % if (len(c.changeset.affected_files) <= c.affected_files_cut_off) or c.fulldiff:

                         <span class="label deleted" title="${_('Removed')}">${len(c.changeset.removed)}</span>

                         <span class="label changed" title="${_('Changed')}">${len(c.changeset.changed)}</span>

                         <span class="label added" title="${_('Added')}">${len(c.changeset.added)}</span>

                        % else:

                         <span class="label deleted" title="${_('Affected %s files') % len(c.changeset.affected_files)}">!</span>

                         <span class="label changed" title="${_('Affected %s files') % len(c.changeset.affected_files)}">!</span>

                         <span class="label added"   title="${_('Affected %s files') % len(c.changeset.affected_files)}">!</span>

                        % endif

                    </div>

                </div>

                <div class="pull-left">

                     <div class="author">

                         ${h.gravatar_div(h.email_or_none(c.changeset.author), size=20)}

                         <span><b>${h.person(c.changeset.author,'full_name_and_username')}</b> - ${h.age(c.changeset.date,True)} ${h.fmt_date(c.changeset.date)}</span><br/>

                         <span>${h.email_or_none(c.changeset.author)}</span><br/>

                     </div>

                     <div>

                     </div>

                     %endif

                     <div>

                     </div>

                     %endif

                     % if hasattr(c.changeset, 'successors') and c.changeset.successors:

                     <div class='successors'>

                       <span class='successors_header'>${_('Replaced by:')} </span>

                       % for i, s in enumerate(c.changeset.successors):

                           <%

                           comma = ""

                           if i != len(c.changeset.successors)-1:

                             comma = ", "

                           %>

                         <a class='successors_hash' href="${h.url('changeset_home',repo_name=c.repo_name, revision=s)}">${s}</a>${comma}

                       % endfor

                     </div>

                     % endif

                     % if hasattr(c.changeset, 'predecessors') and c.changeset.predecessors:

                     <div class='predecessors'>

                       <span class='predecessors_header'>${_('Preceded by:')} </span>

                       % for i, s in enumerate(c.changeset.predecessors):

                           <%

                           comma = ""

                           if i != len(c.changeset.predecessors)-1: