# -*- 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.changelog

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

changelog 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: Apr 21, 2010

:author: marcink

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

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

"""

import logging

import traceback

from tg import request, session, tmpl_context as c

from tg.i18n import ugettext as _

from webob.exc import HTTPFound, HTTPNotFound, HTTPBadRequest

import kallithea.lib.helpers as h

from kallithea.config.routing import url

from kallithea.lib.auth import LoginRequired, HasRepoPermissionLevelDecorator

from kallithea.lib.base import BaseRepoController, render

from kallithea.lib.graphmod import graph_data

from kallithea.lib.page import RepoPage

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

    ChangesetError, NodeDoesNotExistError, EmptyRepositoryError

from kallithea.lib.utils2 import safe_int, safe_str

log = logging.getLogger(__name__)

class ChangelogController(BaseRepoController):

    def _before(self, *args, **kwargs):

        super(ChangelogController, self)._before(*args, **kwargs)

        c.affected_files_cut_off = 60

    @staticmethod

    def __get_cs(rev, repo):

        """

        Safe way to get changeset. If error occur fail with error message.

        :param rev: revision to fetch

        :param repo: repo instance

        """

        try:

            return c.db_repo_scm_instance.get_changeset(rev)

        except EmptyRepositoryError as e:

            h.flash(h.literal(_('There are no changesets yet')),

                    category='error')

        except RepositoryError as e:

            log.error(traceback.format_exc())

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

        raise HTTPBadRequest()

    @LoginRequired()

    @HasRepoPermissionLevelDecorator('read')

    def index(self, repo_name, revision=None, f_path=None):

        limit = 2000

        default = 100

        if request.GET.get('size'):

            c.size = max(min(safe_int(request.GET.get('size')), limit), 1)

            session['changelog_size'] = c.size

            session.save()

        else:

            c.size = int(session.get('changelog_size', default))

        # min size must be 1

        c.size = max(c.size, 1)

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

        branch_name = request.GET.get('branch', None)

        if (branch_name and

            branch_name not in c.db_repo_scm_instance.branches and

            branch_name not in c.db_repo_scm_instance.closed_branches and

            not revision):

            raise HTTPFound(location=url('changelog_file_home', repo_name=c.repo_name,

                                    revision=branch_name, f_path=f_path or ''))

        if revision == 'tip':

            revision = None

        c.changelog_for_path = f_path

        try:

            if f_path:

                log.debug('generating changelog for path %s', f_path)

                # get the history for the file !

                tip_cs = c.db_repo_scm_instance.get_changeset()

                try:

                    collection = tip_cs.get_file_history(f_path)

                except (NodeDoesNotExistError, ChangesetError):

                    # this node is not present at tip !

                    try:

                        cs = self.__get_cs(revision, repo_name)

                        collection = cs.get_file_history(f_path)

                    except RepositoryError as e:

                        h.flash(safe_str(e), category='warning')

                        raise HTTPFound(location=h.url('changelog_home', repo_name=repo_name))

                collection = list(reversed(collection))

            else:

                collection = c.db_repo_scm_instance.get_changesets(start=0, end=revision,

                                                        branch_name=branch_name)

            c.total_cs = len(collection)

            c.cs_pagination = RepoPage(collection, page=p, item_count=c.total_cs,

                                    items_per_page=c.size, branch=branch_name,)

            page_revisions = [x.raw_id for x in c.cs_pagination]

            c.cs_comments = c.db_repo.get_comments(page_revisions)

            c.cs_statuses = c.db_repo.statuses(page_revisions)

        except EmptyRepositoryError as e:

            h.flash(safe_str(e), category='warning')

            raise HTTPFound(location=url('summary_home', repo_name=c.repo_name))

        except (RepositoryError, ChangesetDoesNotExistError, Exception) as e:

            log.error(traceback.format_exc())

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

            raise HTTPFound(location=url('changelog_home', repo_name=c.repo_name))

        c.branch_name = branch_name

        c.branch_filters = [('', _('None'))] + \

            [(k, k) for k in c.db_repo_scm_instance.branches.keys()]

        if c.db_repo_scm_instance.closed_branches:

            prefix = _('(closed)') + ' '

            c.branch_filters += [('-', '-')] + \

                [(k, prefix + k) for k in c.db_repo_scm_instance.closed_branches.keys()]

        revs = []

        if not f_path:

            revs = [x.revision for x in c.cs_pagination]

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

        c.revision = revision # requested revision ref

        c.first_revision = c.cs_pagination[0] # pagination is never empty here!

        return render('changelog/changelog.html')

    @LoginRequired()

    @HasRepoPermissionLevelDecorator('read')

    def changelog_details(self, cs):

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

            c.cs = c.db_repo_scm_instance.get_changeset(cs)

            return render('changelog/changelog_details.html')

        raise HTTPNotFound()

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

<%inherit file="/base/base.html"/>

<%namespace name="changelog_table" file="changelog_table.html"/>

<%block name="title">

    ${_('%s Changelog') % c.repo_name}

    %if c.changelog_for_path:

      /${c.changelog_for_path}

    %endif

</%block>

<%def name="breadcrumbs_links()">

    <% size = c.size if c.size <= c.total_cs else c.total_cs %>

    ${_('Changelog')}

    %if c.changelog_for_path:

     - /${c.changelog_for_path}

    %endif

    %if c.revision:

    @ ${h.short_id(c.first_revision.raw_id)}

    %endif

    - ${ungettext('showing %d out of %d revision', 'showing %d out of %d revisions', size) % (size, c.total_cs)}

</%def>

<%block name="header_menu">

    ${self.menu('repositories')}

</%block>

<%def name="main()">

${self.repo_context_bar('changelog', c.first_revision.raw_id if c.first_revision else None)}

<div class="panel panel-primary">

    <div class="panel-heading clearfix">

        ${self.breadcrumbs()}

    </div>

    <div class="panel-body changelog-panel">

        %if c.cs_pagination:

                <div class="changelog-heading clearfix" style="${'display:none' if c.changelog_for_path else ''}">

                    <div class="pull-left">

                        ${h.form(h.url.current(),method='get',class_="form-inline")}

                            ${h.text('size',size=3,value=c.size,class_='form-control')}

                            ${_('revisions')}

                            %if c.branch_name:

                                ${h.hidden('branch', c.branch_name)}

                            %endif

                            <a href="#" class="btn btn-default btn-sm" id="rev_range_clear" style="display:none">${_('Clear selection')}</a>

                        ${h.end_form()}

                    </div>

                    <div class="pull-right">

                        <a href="#" class="btn btn-default btn-sm" id="rev_range_container" style="display:none"></a>

                        %if c.revision:

                            <a class="btn btn-default btn-sm" href="${h.url('changelog_home', repo_name=c.repo_name)}">

                                ${_('Go to tip of repository')}

                            </a>

                        %endif

                        %if c.db_repo.fork:

                            <a id="compare_fork"

                               title="${_('Compare fork with %s' % c.db_repo.fork.repo_name)}"

                               href="${h.url('compare_url',repo_name=c.db_repo.fork.repo_name,org_ref_type=c.db_repo.landing_rev[0],org_ref_name=c.db_repo.landing_rev[1],other_repo=c.repo_name,other_ref_type='branch' if request.GET.get('branch') else c.db_repo.landing_rev[0],other_ref_name=request.GET.get('branch') or c.db_repo.landing_rev[1], merge=1)}"

                               class="btn btn-default btn-sm"><i class="icon-git-compare"></i> ${_('Compare fork with parent repository (%s)' % c.db_repo.fork.repo_name)}</a>

                        %endif

                        ## text and href of open_new_pr is controlled from javascript

                        <a id="open_new_pr" class="btn btn-default btn-sm"></a>

                        ${_("Branch filter:")} ${h.select('branch_filter',c.branch_name,c.branch_filters)}

                    </div>

                </div>

                <div id="graph_nodes">

                    <canvas id="graph_canvas" style="width:0"></canvas>

                </div>

                <div id="graph_content" style="${'margin: 0px' if c.changelog_for_path else ''}">

                  ${changelog_table.changelog(c.repo_name, c.cs_pagination, c.cs_statuses, c.cs_comments,

                                              show_checkbox=not c.changelog_for_path,

                                              show_branch=not c.branch_name,

                                              resize_js='graph.render(jsdata)')}

                  <input type="checkbox" id="singlerange" style="display:none"/>

                </div>

                ${c.cs_pagination.pager()}

        <script type="text/javascript" src="${h.url('/js/graph.js', ver=c.kallithea_version)}"></script>

        <script type="text/javascript">

            var jsdata = ${h.js(c.jsdata)};

            var graph = new BranchRenderer('graph_canvas', 'graph_content', 'chg_');

            $(document).ready(function(){

                var $checkboxes = $('.changeset_range');

                pyroutes.register('changeset_home', ${h.js(h.url('changeset_home', repo_name='%(repo_name)s', revision='%(revision)s'))}, ['repo_name', 'revision']);

                var checkbox_checker = function(e) {

                    var $checked_checkboxes = $checkboxes.filter(':checked');

                    var $singlerange = $('#singlerange');

                    $('#rev_range_container').hide();

                    $checkboxes.show();

                    $singlerange.show();

                    if ($checked_checkboxes.length > 0) {

                        $checked_checkboxes.first().parent('td').append($singlerange);

                        var singlerange = $singlerange.prop('checked');

                        var rev_end = $checked_checkboxes.first().prop('name');

                        if ($checked_checkboxes.length > 1 || singlerange) {

                            var rev_start = $checked_checkboxes.last().prop('name');

                            $('#rev_range_container').prop('href',

                                pyroutes.url('changeset_home', {'repo_name': ${h.js(c.repo_name)},

                                                                'revision': rev_start + '...' + rev_end}));

                            $('#rev_range_container').html(

                                 _TM['Show Selected Changesets {0} → {1}'].format(rev_start.substr(0, 12), rev_end.substr(0, 12)));

                            $('#rev_range_container').show();

                            $('#open_new_pr').prop('href', pyroutes.url('pullrequest_home',

                                                                        {'repo_name': ${h.js(c.repo_name)},

                                                                         'rev_start': rev_start,

                                                                         'rev_end': rev_end}));

                            $('#open_new_pr').html(_TM['Open New Pull Request for {0} → {1}'].format(rev_start.substr(0, 12), rev_end.substr(0, 12)));

                        } else {

                            $('#open_new_pr').prop('href', pyroutes.url('pullrequest_home',

                                                                        {'repo_name': ${h.js(c.repo_name)},

                                                                         'rev_end': rev_end}));

                            $('#open_new_pr').html(_TM['Open New Pull Request from {0}'].format(rev_end.substr(0, 12)));

                        }

                        $('#rev_range_clear').show();

                        $('#compare_fork').hide();

                        var disabled = true;

                        $checkboxes.each(function(){

                            var $this = $(this);

                            if (disabled) {

                                if ($this.prop('checked')) {

                                    $this.closest('tr').removeClass('out-of-range');

                                    disabled = singlerange;

                                } else {

                                    $this.closest('tr').addClass('out-of-range');

                                }

                            } else {