:created_on: May 7, 2012

:author: marcink

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

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

"""

import logging

import traceback

import formencode

import re

from webob.exc import HTTPNotFound, HTTPForbidden, HTTPBadRequest

from pylons import request, tmpl_context as c, url

from pylons.controllers.util import redirect

from pylons.i18n.translation import _

from kallithea.lib.vcs.utils.hgcompat import unionrepo

from kallithea.lib.compat import json

from kallithea.lib.base import BaseRepoController, render

from kallithea.lib.auth import LoginRequired, HasRepoPermissionAnyDecorator,\

    NotAnonymous

from kallithea.lib.helpers import Page

from kallithea.lib import helpers as h

from kallithea.lib import diffs

from kallithea.lib.exceptions import UserInvalidException

from kallithea.lib.utils import action_logger, jsonify

from kallithea.lib.vcs.utils import safe_str

from kallithea.lib.vcs.exceptions import EmptyRepositoryError

from kallithea.lib.diffs import LimitedDiffContainer

from kallithea.model.db import PullRequest, ChangesetStatus, ChangesetComment,\

    PullRequestReviewers

from kallithea.model.pull_request import PullRequestModel

from kallithea.model.meta import Session

from kallithea.model.repo import RepoModel

from kallithea.model.comment import ChangesetCommentsModel

from kallithea.model.changeset_status import ChangesetStatusModel

from kallithea.model.forms import PullRequestForm, PullRequestPostForm

from kallithea.lib.utils2 import safe_int

from kallithea.controllers.changeset import _ignorews_url, _context_url

from kallithea.controllers.compare import CompareController

from kallithea.lib.graphmod import graph_data

log = logging.getLogger(__name__)

class PullrequestsController(BaseRepoController):

    def _get_repo_refs(self, repo, rev=None, branch=None, branch_rev=None):

        """return a structure with repo's interesting changesets, suitable for

        the selectors in pullrequest.html

        rev: a revision that must be in the list somehow and selected by default

        branch: a branch that must be in the list and selected by default - even if closed

        branch_rev: a revision of which peers should be preferred and available."""

        # list named branches that has been merged to this named branch - it should probably merge back

        peers = []

        if rev:

            rev = safe_str(rev)

        if branch:

            branch = safe_str(branch)

        if branch_rev:

            branch_rev = safe_str(branch_rev)

            # a revset not restricting to merge() would be better

            # (especially because it would get the branch point)

            # ... but is currently too expensive

            # including branches of children could be nice too

            peerbranches = set()

            for i in repo._repo.revs(

                "sort(parents(branch(id(%s)) and merge()) - branch(id(%s)), -rev)",

                branch_rev, branch_rev):

                abranch = repo.get_changeset(i).branch

                if abranch not in peerbranches:

                    n = 'branch:%s:%s' % (abranch, repo.get_changeset(abranch).raw_id)

                    peers.append((n, abranch))

                    peerbranches.add(abranch)

        selected = None

        tiprev = repo.tags.get('tip')

        tipbranch = None

        branches = []

        for abranch, branchrev in repo.branches.iteritems():

            n = 'branch:%s:%s' % (abranch, branchrev)

            desc = abranch

            if branchrev == tiprev:

                tipbranch = abranch

                desc = '%s (current tip)' % desc

            branches.append((n, desc))

            if rev == branchrev:

                selected = n

            if branch == abranch:

                if not rev:

            <div class="field">

                <div class="label label-textarea">

                    <label for="pullrequest_desc">${_('Changeset flow')}:</label>

                </div>

                <div class="input">

                    ##ORG

                    <div>

                        <div>

                            <div style="padding:5px 3px 3px 3px;">

                            <b>${_('Origin repository')}:</b> <span id="org_repo_desc">${c.db_repo.description.split('\n')[0]}</span>

                            </div>

                            <div>

                            ${h.select('org_repo','',c.cs_repos,class_='refs')}:${h.select('org_ref',c.default_cs_ref,c.cs_refs,class_='refs')}

                            </div>

                            <div style="padding:5px 3px 3px 3px;">

                            <b>${_('Revision')}:</b> <span id="org_rev_span">-</span>

                            </div>

                        </div>

                    </div>

                    ##OTHER, most Probably the PARENT OF THIS FORK

                    <div style="border-top: 1px solid #EEE; margin: 5px 0px 0px 0px">

                        <div>

                            ## filled with JS

                            <div style="padding:5px 3px 3px 3px;">

                            <b>${_('Destination repository')}:</b> <span id="other_repo_desc">${c.a_repo.description.split('\n')[0]}</span>

                            </div>

                            <div>

                            ${h.select('other_repo',c.a_repo.repo_name,c.a_repos,class_='refs')}:${h.select('other_ref',c.default_a_ref,c.a_refs,class_='refs')}

                            </div>

                            <div style="padding:5px 3px 3px 3px;">

                            <b>${_('Revision')}:</b> <span id="other_rev_span">-</span>

                            </div>

                        </div>

                    </div>

                    <div style="clear:both"></div>

                </div>

            </div>

            <div class="field">

                <div class="buttons">

                    ${h.submit('save',_('Create Pull Request'),class_="btn")}

                    ${h.reset('reset',_('Reset'),class_="btn")}

               </div>

            </div>

        </div>

        <div style="clear:both;padding: 0 0 30px 0;"></div>

        <h4>${_('Changesets')}</h4>

        <div style="float:left;padding:0px 30px 30px 30px">

           ## overview pulled by ajax

           <div style="float:left" id="pull_request_overview"></div>

        </div>

        <div style="clear:both;"></div>

    </div>

    ${h.end_form()}

</div>

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

<script type="text/javascript">

  pyroutes.register('pullrequest_repo_info', "${url('pullrequest_repo_info',repo_name='%(repo_name)s')}", ['repo_name']);

  var pendingajax = undefined;

  var otherrepoChanged = function(){

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

      $other_ref.prop('disabled', true);

      var repo_name = $('#other_repo').val();

      if (pendingajax) {

          pendingajax.abort();

          pendingajax = undefined;

      }

      pendingajax = ajaxGET(pyroutes.url('pullrequest_repo_info', {"repo_name": repo_name}),

          function(data){

              pendingajax = undefined;

              $('#other_repo_desc').html(data.description);

              // replace options of other_ref with the ones for the current other_repo

              $other_ref.empty();

              for(var i = 0; i < data.refs.length; i++)

              {

                var $optgroup = $('<optgroup/>').attr('label', data.refs[i][1]);

                var options = data.refs[i][0];

                var length = options.length;

                for(var j = 0; j < length; j++)

                {

                  $optgroup.append($('<option/>').text(options[j][1]).val(options[j][0]));

                }

                $other_ref.append($optgroup);

              }

              $other_ref.val(data.selected_ref);

              // re-populate the select2 thingie

              $("#other_ref").select2({

                  dropdownAutoWidth: true

              });

              $other_ref.prop('disabled', false);

              loadPreview();

          });

  };

  var loadPreview = function(){

      //url template

      var url = "${h.url('compare_url',

                         repo_name='__other_repo__',

                         org_ref_type='rev',

                         org_ref_name='__other_ref_name__',

                         other_repo='__org_repo__',