class PullrequestsController(BaseRepoController):

    @LoginRequired()

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

                                   'repository.admin')

    def __before__(self):

        super(PullrequestsController, self).__before__()

        repo_model = RepoModel()

        c.users_array = repo_model.get_users_js()

        c.users_groups_array = repo_model.get_users_groups_js()

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

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

        the selectors in pullrequest.html"""

        branches = [('branch:%s:%s' % (k, v), k)

                    for k, v in repo.branches.iteritems()]

        bookmarks = [('book:%s:%s' % (k, v), k)

                     for k, v in repo.bookmarks.iteritems()]

        tags = [('tag:%s:%s' % (k, v), k)

                for k, v in repo.tags.iteritems()

                if k != 'tip']

        tip = repo.tags['tip']

        colontip = ':' + tip

        tips = [x[1] for x in branches + bookmarks + tags

                if x[0].endswith(colontip)]

        selected = 'tag:tip:%s' % tip

        special = [(selected, 'tip: %s' % ', '.join(tips))]

        if rev:

            selected = 'rev:%s:%s' % (rev, rev)

            special.append((selected, '%s: %s' % (_("Selected"), rev[:12])))

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

        if branch_rev:

            # not restricting to merge() would also get branch point and be better

            # (especially because it would get the branch point) ... but is currently too expensive

            revs = ["sort(parents(branch(id('%s')) and merge()) - branch(id('%s')))" %

                    (branch_rev, branch_rev)]

            otherbranches = {}

            for i in scmutil.revrange(repo._repo, revs):

                cs = repo.get_changeset(i)

                otherbranches[cs.branch] = cs.raw_id

            for branch, node in otherbranches.iteritems():

                selected = 'branch:%s:%s' % (branch, node)

                special.append((selected, '%s: %s' % (_('Peer'), branch)))

        return [(special, _("Special")),

                (bookmarks, _("Bookmarks")),

                (branches, _("Branches")),

                (tags, _("Tags")),

                ], selected

    def _get_is_allowed_change_status(self, pull_request):

        owner = self.rhodecode_user.user_id == pull_request.user_id

        reviewer = self.rhodecode_user.user_id in [x.user_id for x in

                                                   pull_request.reviewers]

        return (self.rhodecode_user.admin or owner or reviewer)

    def show_all(self, repo_name):

        c.pull_requests = PullRequestModel().get_all(repo_name)

        c.repo_name = repo_name

        return render('/pullrequests/pullrequest_show_all.html')

    @NotAnonymous()

    def index(self):

        org_repo = c.rhodecode_db_repo

        if org_repo.scm_instance.alias != 'hg':

            log.error('Review not available for GIT REPOS')

            raise HTTPNotFound

        try:

            org_repo.scm_instance.get_changeset()

        except EmptyRepositoryError, e:

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

                    category='warning')

            redirect(url('summary_home', repo_name=org_repo.repo_name))

        org_rev = request.GET.get('rev_end')

        # rev_start is not directly useful - its parent could however be used

        # as default for other and thus give a simple compare view

        #other_rev = request.POST.get('rev_start')

        other_repos_info = {}

        c.org_repos = []

        c.org_repos.append((org_repo.repo_name, org_repo.repo_name))

        c.default_org_repo = org_repo.repo_name

        c.org_refs, c.default_org_ref = self._get_repo_refs(org_repo.scm_instance, org_rev)

        c.other_repos = []

        # add org repo to other so we can open pull request against itself

        c.other_repos.extend(c.org_repos)

        c.default_other_repo = org_repo.repo_name

        usr_data = lambda usr: dict(user_id=usr.user_id,

                                    username=usr.username,

                                    firstname=usr.firstname,

                                    lastname=usr.lastname,

                                    gravatar_link=h.gravatar_url(usr.email, 14))

        other_repos_info[org_repo.repo_name] = {

            'user': usr_data(org_repo.user),

            'description': org_repo.description,

        }

        # gather forks and add to this list ... even though it is rare to

        # request forks to pull from their parent

        for fork in org_repo.forks:

            c.other_repos.append((fork.repo_name, fork.repo_name))

            refs, default_ref = self._get_repo_refs(fork.scm_instance)

            other_repos_info[fork.repo_name] = {

                'user': usr_data(fork.user),

                'description': fork.description,

                'revs': h.select('other_ref', default_ref, refs, class_='refs')

            }

        # add parents of this fork also, but only if it's not empty

        if org_repo.parent and org_repo.parent.scm_instance.revisions:

            c.default_other_repo = org_repo.parent.repo_name

            c.other_repos.append((org_repo.parent.repo_name, org_repo.parent.repo_name))

            other_repos_info[org_repo.parent.repo_name] = {

                'user': usr_data(org_repo.parent.user),

                'description': org_repo.parent.description,

            }

        c.default_other_repo_info = other_repos_info[c.default_other_repo]

        c.other_repos_info = json.dumps(other_repos_info)

        return render('/pullrequests/pullrequest.html')

    @NotAnonymous()

    def create(self, repo_name):

        repo = RepoModel()._get_repo(repo_name)

        try:

            _form = PullRequestForm(repo.repo_id)().to_python(request.POST)

        except formencode.Invalid, errors:

            log.error(traceback.format_exc())

            if errors.error_dict.get('revisions'):

                msg = 'Revisions: %s' % errors.error_dict['revisions']

            elif errors.error_dict.get('pullrequest_title'):

                msg = _('Pull request requires a title with min. 3 chars')

            else:

                msg = _('error during creation of pull request')

            h.flash(msg, 'error')

            return redirect(url('pullrequest_home', repo_name=repo_name))

        org_repo = _form['org_repo']

        org_ref = 'rev:merge:%s' % _form['merge_rev']

        other_repo = _form['other_repo']

        other_ref = 'rev:ancestor:%s' % _form['ancestor_rev']

        revisions = _form['revisions']

        reviewers = _form['review_members']

        title = _form['pullrequest_title']

        description = _form['pullrequest_desc']

        try:

            pull_request = PullRequestModel().create(

                self.rhodecode_user.user_id, org_repo, org_ref, other_repo,

                other_ref, revisions, reviewers, title, description

            )

            Session().commit()

            h.flash(_('Successfully opened new pull request'),

                    category='success')

        except Exception:

            h.flash(_('Error occurred during sending pull request'),

                    category='error')

            log.error(traceback.format_exc())

            return redirect(url('pullrequest_home', repo_name=repo_name))

        return redirect(url('pullrequest_show', repo_name=other_repo,

                            pull_request_id=pull_request.pull_request_id))

    @NotAnonymous()

    @jsonify

    def update(self, repo_name, pull_request_id):

        pull_request = PullRequest.get_or_404(pull_request_id)

        if pull_request.is_closed():

            raise HTTPForbidden()

        #only owner or admin can update it

        owner = pull_request.author.user_id == c.rhodecode_user.user_id

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

            reviewers_ids = map(int, filter(lambda v: v not in [None, ''],

                       request.POST.get('reviewers_ids', '').split(',')))

            PullRequestModel().update_reviewers(pull_request_id, reviewers_ids)

            Session().commit()

            return True

        raise HTTPForbidden()

    @NotAnonymous()

    @jsonify

    def delete(self, repo_name, pull_request_id):

        pull_request = PullRequest.get_or_404(pull_request_id)

        #only owner can delete it !

        if pull_request.author.user_id == c.rhodecode_user.user_id:

            PullRequestModel().delete(pull_request)

            Session().commit()

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

                    category='success')

            return redirect(url('admin_settings_my_account', anchor='pullrequests'))

        raise HTTPForbidden()

    def _load_compare_data(self, pull_request, enable_comments=True):

        """

        Load context data needed for generating compare diff

        :param pull_request:

        :type pull_request:

        """

        org_repo = pull_request.org_repo

        (org_ref_type,

         org_ref_name,

         org_ref_rev) = pull_request.org_ref.split(':')

        other_repo = org_repo

        (other_ref_type,

         other_ref_name,

         other_ref_rev) = pull_request.other_ref.split(':')

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

<%def name="title()">

    ${c.repo_name} ${_('New pull request')}

</%def>

<%def name="breadcrumbs_links()">

    ${h.link_to(_(u'Home'),h.url('/'))}

    »

    ${h.repo_link(c.rhodecode_db_repo.groups_and_repo)}

    »

    ${_('new pull request')}

</%def>

<%def name="main()">

${self.context_bar('showpullrequest')}

<div class="box">

    <!-- box / title -->

    <div class="title">

        ${self.breadcrumbs()}

    </div>

    ${h.form(url('pullrequest', repo_name=c.repo_name), method='post', id='pull_request_form')}

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

        ##ORG

        <div style="float:left">

            <div>

                <span style="font-size: 20px">

                ${h.select('org_repo','',c.org_repos,class_='refs')}:${h.select('org_ref',c.default_org_ref,c.org_refs,class_='refs')}

                </span>

                 <div style="padding:5px 3px 3px 20px;">${c.rhodecode_db_repo.description}</div>

            </div>

            <div style="clear:both;padding-top: 10px"></div>

        </div>

          <div style="float:left;font-size:24px;padding:0px 20px">

          <img height=32 width=32 src="${h.url('/images/arrow_right_64.png')}"/>

          </div>

        ##OTHER, most Probably the PARENT OF THIS FORK

        <div style="float:left">

            <div>

                <span style="font-size: 20px">

                </span>

                 <div id="other_repo_desc" style="padding:5px 3px 3px 20px;"></div>

            </div>

            <div style="clear:both;padding-top: 10px"></div>

        </div>

       <div style="clear:both;padding-top: 10px"></div>

       ## overview pulled by ajax

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

       <div style="float:left;clear:both;padding:10px 10px 10px 0px;display:none">

            <a id="pull_request_overview_url" href="#">${_('Detailed compare view')}</a>

       </div>

     </div>

    <div style="float:left; border-left:1px dashed #eee">

        <h4>${_('Pull request reviewers')}</h4>

        <div id="reviewers" style="padding:0px 0px 0px 15px">

          ## members goes here !

          <div class="group_members_wrap">

            <ul id="review_members" class="group_members">

            %for member in [c.default_other_repo_info['user']]:

              <li id="reviewer_${member['user_id']}">

                <div class="reviewers_member">

                  <div class="gravatar"><img alt="gravatar" src="${member['gravatar_link']}"/> </div>

                  <div style="float:left">${member['firstname']} ${member['lastname']} (${_('owner')})</div>

                  <input type="hidden" value="${member['user_id']}" name="review_members" />

                  <span class="delete_icon action_button" onclick="removeReviewMember(${member['user_id']})"></span>

                </div>

              </li>

            %endfor

            </ul>

          </div>

          <div class='ac'>

            <div class="reviewer_ac">

               ${h.text('user', class_='yui-ac-input')}

               <span class="help-block">${_('Add reviewer to this pull request.')}</span>

               <div id="reviewers_container"></div>

            </div>

          </div>

        </div>

    </div>

    <h3>${_('Create new pull request')}</h3>

    <div class="form">

        <!-- fields -->

        <div class="fields">

             <div class="field">

                <div class="label">

                    <label for="pullrequest_title">${_('Title')}:</label>

                </div>

                <div class="input">

                    ${h.text('pullrequest_title',size=30)}

                </div>

             </div>

            <div class="field">

                <div class="label label-textarea">

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

                </div>

                <div class="textarea text-area editor">

                    ${h.textarea('pullrequest_desc',size=30)}

                </div>

            </div>

            <div class="buttons">

                ${h.submit('save',_('Send pull request'),class_="ui-btn large")}

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

           </div>

        </div>

    </div>

    ${h.end_form()}

</div>

<script type="text/javascript">

  var _USERS_AC_DATA = ${c.users_array|n};

  var _GROUPS_AC_DATA = ${c.users_groups_array|n};

  PullRequestAutoComplete('user', 'reviewers_container', _USERS_AC_DATA, _GROUPS_AC_DATA);

  var other_repos_info = ${c.other_repos_info|n};

  var otherrepoChanged = function(){

      var sel_box = YUQ('#pull_request_form #other_repo')[0];

      var repo_name = sel_box.options[sel_box.selectedIndex].value;

      YUD.get('other_repo_desc').innerHTML = other_repos_info[repo_name]['description'];

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

      var other_ref_selector = YUD.get('other_ref');

      var new_select = YUD.createElementFromMarkup(other_repos_info[repo_name]['revs']);

      var new_selectedIndex = new_select.selectedIndex;

      other_ref_selector.innerHTML = ""; // clear old options

      while (new_select.length > 0){ // children will be popped when appened to other_ref_selector

          other_ref_selector.appendChild(new_select.children[0]);

      }

      // browsers lost track of selected when appendChild was used