try:

        return int(retval)

    except Exception:

        return 3

def _context_url(GET, fileid=None):

    """

    Generates url for context lines

    :param fileid:

    """

    fileid = str(fileid) if fileid else None

    ig_ws = get_ignore_ws(fileid, GET)

    ln_ctx = (get_line_ctx(fileid, GET) or 3) * 2

    params = defaultdict(list)

    _update_with_GET(params, GET)

    # global option

    if fileid is None:

        if ln_ctx > 0:

            params['context'] += [ln_ctx]

        if ig_ws:

            ig_ws_key = 'ignorews'

            ig_ws_val = 1

    # per file option

    else:

        params[fileid] += ['C:%s' % ln_ctx]

        ig_ws_key = fileid

        ig_ws_val = 'WS:%s' % 1

    if ig_ws:

        params[ig_ws_key] += [ig_ws_val]

    lbl = _('Increase diff context to %(num)s lines') % {'num': ln_ctx}

    params['anchor'] = fileid

    icon = h.literal('<i class="icon-sort"></i>')

    return h.link_to(icon, h.url.current(**params), title=lbl, class_='tooltip')

# Could perhaps be nice to have in the model but is too high level ...

def create_comment(text, status, f_path, line_no, revision=None, pull_request_id=None, closing_pr=None):

    """Comment functionality shared between changesets and pullrequests"""

    comment = ChangesetCommentsModel().create(

        text=text,

        repo=c.db_repo.repo_id,

        user=c.authuser.user_id,

        revision=revision,

        pull_request=pull_request_id,

        f_path=f_path,

        line_no=line_no,

        status_change=ChangesetStatus.get_status_lbl(status) if status else None,

        closing_pr=closing_pr,

    )

    return comment

class ChangesetController(BaseRepoController):

    def __before__(self):

        super(ChangesetController, self).__before__()

        c.affected_files_cut_off = 60

    def __load_data(self):

        repo_model = RepoModel()

        c.users_array = repo_model.get_users_js()

        c.user_groups_array = repo_model.get_user_groups_js()

    def _index(self, revision, method):

        c.anchor_url = anchor_url

        c.ignorews_url = _ignorews_url

        c.context_url = _context_url

        c.fulldiff = fulldiff = request.GET.get('fulldiff')

        #get ranges of revisions if preset

        rev_range = revision.split('...')[:2]

        enable_comments = True

        c.cs_repo = c.db_repo

        try:

            if len(rev_range) == 2:

                enable_comments = False

                rev_start = rev_range[0]

                rev_end = rev_range[1]

                rev_ranges = c.db_repo_scm_instance.get_changesets(start=rev_start,

                                                             end=rev_end)

            else:

                rev_ranges = [c.db_repo_scm_instance.get_changeset(revision)]

            c.cs_ranges = list(rev_ranges)

            if not c.cs_ranges:

                raise RepositoryError('Changeset range returned empty result')

        except ChangesetDoesNotExistError:

            log.debug(traceback.format_exc())

            msg = _('Such revision does not exist for this repository')

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

            raise HTTPNotFound()

        c.changes = OrderedDict()

        c.lines_added = 0  # count of lines added

        c.lines_deleted = 0  # count of lines removes

        c.changeset_statuses = ChangesetStatus.STATUSES

        comments = dict()

        c.statuses = []

        c.inline_comments = []

        c.inline_cnt = 0

        # Iterate over ranges (default changeset view is always one changeset)

        for changeset in c.cs_ranges:

            if method == 'show':

                c.statuses.extend([ChangesetStatusModel().get_status(

                            c.db_repo.repo_id, changeset.raw_id)])

                # Changeset comments

                comments.update((com.comment_id, com)

                                for com in ChangesetCommentsModel()

        elif method == 'patch':

            response.content_type = 'text/plain'

            c.diff = safe_unicode(diff)

            return render('changeset/patch_changeset.html')

        elif method == 'raw':

            response.content_type = 'text/plain'

            return diff

        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):

        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

            try:

                ChangesetStatusModel().set_status(

                    c.db_repo.repo_id,

                    status,

                    c.authuser.user_id,

                    c.comment,

                    revision=revision,

                )

            except StatusChangeOnClosedPullRequestError:

        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(comment_id)

        if not co:

            raise HTTPBadRequest()

        owner = co.author.user_id == c.authuser.user_id

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

        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)

.CodeMirror .CodeMirror-code pre {

    font-size: 12px;

    font-family: Lucida Console, Consolas, Monaco, Inconsolata, Liberation Mono, monospace;

}

.top-left-rounded-corner {

    border-top-left-radius: 8px;

}

.top-right-rounded-corner {

    border-top-right-radius: 8px;

}

.bottom-left-rounded-corner {

    border-bottom-left-radius: 8px;

}

.bottom-right-rounded-corner {

    border-bottom-right-radius: 8px;

}

.top-left-rounded-corner-mid {

    border-top-left-radius: 4px;

}

.top-right-rounded-corner-mid {

    border-top-right-radius: 4px;

}

.bottom-left-rounded-corner-mid {

    border-bottom-left-radius: 4px;

}

.bottom-right-rounded-corner-mid {

    border-bottom-right-radius: 4px;

}

.help-block {

    color: #999999;

    display: block;

    margin-bottom: 0;

    margin-top: 5px;

}

.empty_data {

    color: #B9B9B9;

}

.truncate {

       white-space: nowrap;

       overflow: hidden;

       text-overflow: ellipsis;

    -o-text-overflow: ellipsis;

    -ms-text-overflow: ellipsis;

}

.truncate.autoexpand:hover {

    overflow: visible;

}

a.permalink {

    visibility: hidden;

    position: absolute;

    margin: 3px 4px;

}

a.permalink:hover {

    text-decoration: none;

}

h1:hover > a.permalink,

h2:hover > a.permalink,

h3:hover > a.permalink,

h4:hover > a.permalink,

h5:hover > a.permalink,

h6:hover > a.permalink,

div:hover > a.permalink,

div:hover > span > a.permalink {

    visibility: visible;

}

#header #logo {

    padding-left: 10px;

}

div.header img {

    padding-top: 5px;

}

#header #logo div.header,

#header #logo div.branding {

    font-size: 20px;

    color: white;

    float: left;

    height: 44px;

    line-height: 44px;

        }

    });

    linkInlineComments($('.firstlink'), $('.comment:first-child'));

}

// comment bubble was clicked - insert new tr and show form

function show_comment_form($bubble) {

    var children = $bubble.closest('tr.line').children('[id]');

    var line_td_id = children[children.length - 1].id;

    var $comment_div = _get_add_comment_div(line_td_id);

    var f_path = $bubble.closest('div.full_f_path').data('f_path');

    var parts = line_td_id.split('_');

    var line_no = parts[parts.length-1];

    comment_div_state($comment_div, f_path, line_no, true);

}

// return comment div for target_id - add it if it doesn't exist yet

function _get_add_comment_div(target_id) {

    var comments_box_id = 'comments-' + target_id;

    var $comments_box = $('#' + comments_box_id);

    if (!$comments_box.length) {

        var html = '<tr><td id="{0}" colspan="3" class="inline-comments"></td></tr>'.format(comments_box_id);

        $('#' + target_id).closest('tr').after(html);

        $comments_box = $('#' + comments_box_id);

    }

    return $comments_box;

}

// set $comment_div state - showing or not showing form and Add button

function comment_div_state($comment_div, f_path, line_no, show_form) {

    var $forms = $comment_div.children('.comment-inline-form');

    var $buttonrow = $comment_div.children('.add-button-row');

    var $comments = $comment_div.children('.comment');

    if (show_form) {

        if (!$forms.length) {

            _comment_div_append_form($comment_div, f_path, line_no);

        }

    } else {

        $forms.remove();

    }

    $buttonrow.remove();

    if ($comments.length && !show_form) {

        _comment_div_append_add($comment_div, f_path, line_no);

    }

}

// append an Add button to $comment_div and hook it up to show form

function _comment_div_append_add($comment_div, f_path, line_no) {

        comment_div_state($comment_div, f_path, line_no, true);

}

// append a comment form to $comment_div

function _comment_div_append_form($comment_div, f_path, line_no) {

    var $form_div = $('#comment-inline-form-template').children()

        .clone()

        .addClass('comment-inline-form');

    $comment_div.append($form_div);

    var $form = $comment_div.find("form");

    var $textarea = $form.find('textarea');

    var $mentions_container = $form.find('div.mentions-container');

    $form.submit(function(e) {

        e.preventDefault();

        var text = $textarea.val();

        }

        $form.find('.submitting-overlay').show();

        var success = function(json_data) {

            $comment_div.append(json_data['rendered_text']);

            comment_div_state($comment_div, f_path, line_no, false);

            linkInlineComments($('.firstlink'), $('.comment:first-child'));

        };

        ajaxPOST(AJAX_COMMENT_URL, postData, success);

    });

    // create event for hide button

    $form.find('.hide-inline-form').click(function(e) {

        comment_div_state($comment_div, f_path, line_no, false);

    });

    setTimeout(function() {

        // callbacks

        tooltip_activate();

        MentionsAutoComplete($textarea, $mentions_container, _USERS_AC_DATA);

        $textarea.focus();

    }, 10);

}

function deleteComment(comment_id) {

    var url = AJAX_COMMENT_DELETE_URL.replace('__COMMENT_ID__', comment_id);

    var postData = {'_method': 'delete'};

    var success = function(o) {

        $('#comment-'+comment_id).remove();

        // Ignore that this might leave a stray Add button (or have a pending form with another comment) ...

    }

    ajaxPOST(url, postData, success);

}

/**

 * Double link comments

 */

var linkInlineComments = function($firstlinks, $comments){

    if ($comments.length > 0) {

        $firstlinks.html('<a href="#{0}">First comment</a>'.format($comments.prop('id')));

    }

    if ($comments.length <= 1) {

        return;

    }

    $comments.each(function(i, e){

            var prev = '';

            if (i > 0){

                var prev_anchor = $($comments.get(i-1)).prop('id');

                prev = '<a href="#{0}">Previous comment</a>'.format(prev_anchor);

            }

            var next = '';

            if (i+1 < $comments.length){

                var next_anchor = $($comments.get(i+1)).prop('id');

                     </div>

                     % endif

                     <div class="message">${h.urlify_commit(c.changeset.message, c.repo_name)}</div>

                </div>

            </div>

            <div class="changes_txt">

            % if c.limited_diff:

            ${ungettext('%s file changed','%s files changed',len(c.changeset.affected_files)) % (len(c.changeset.affected_files))}:

            % else:

            ${ungettext('%s file changed with %s insertions and %s deletions','%s files changed with %s insertions and %s deletions', len(c.changeset.affected_files)) % (len(c.changeset.affected_files),c.lines_added,c.lines_deleted)}:

            %endif

            </div>

            <div class="cs_files">

              %for FID, (cs1, cs2, change, path, diff, stats) in c.changes[c.changeset.raw_id].iteritems():

                  <div class="cs_${change}">

                        <div class="node">

                            <i class="icon-diff-${change}"></i>

                            <a href="#${FID}">${h.safe_unicode(path)}</a>

                        </div>

                    <div class="changes">${h.fancy_file_stats(stats)}</div>

                  </div>

              %endfor

              % if c.limited_diff:

                <h5>${_('Changeset was too big and was cut off...')} <a href="${h.url.current(fulldiff=1, **request.GET.mixed())}">${_('Show full diff anyway')}</a></h5>

              % endif

            </div>

        </div>

    </div>

    ## diff block

    <div class="commentable-diff">

    <%namespace name="diff_block" file="/changeset/diff_block.html"/>

    ${diff_block.diff_block_js()}

    ${diff_block.diff_block(c.changes[c.changeset.raw_id])}

    % if c.limited_diff:

      <h4>${_('Changeset was too big and was cut off...')} <a href="${h.url.current(fulldiff=1, **request.GET.mixed())}">${_('Show full diff anyway')}</a></h4>

    % endif

    </div>

    ## template for inline comment form

    ${comment.comment_inline_form()}

    ## render comments and inlines

    ${comment.generate_comments()}

    ## main comment form and it status

    ## FORM FOR MAKING JS ACTION AS CHANGESET COMMENTS

    <script type="text/javascript">

      $(document).ready(function(){

          $('.code-difftable').on('click', '.add-bubble', function(e){

              show_comment_form($(this));

          });

          move_comments($(".comments .comments-list-chunk"));

          pyroutes.register('changeset_home',

                            "${h.url('changeset_home', repo_name='%(repo_name)s', revision='%(revision)s')}",

                            ['repo_name', 'revision']);

          //next links

          $('#child_link').on('click', function(e){

              //fetch via ajax what is going to be the next link, if we have

              //>1 links show them to user to choose

              if(!$('#child_link').hasClass('disabled')){

                  $.ajax({

                    url: '${h.url('changeset_children',repo_name=c.repo_name, revision=c.changeset.raw_id)}',

                    success: function(data) {

                      if(data.results.length === 0){

                          $('#child_link').addClass('disabled');

                          $('#child_link').html('${_('No revisions')}');

                      }

                      if(data.results.length === 1){

                          var commit = data.results[0];

                          window.location = pyroutes.url('changeset_home', {'repo_name': '${c.repo_name}','revision': commit.raw_id});

                      }

                      else if(data.results.length === 2){

                          $('#child_link').addClass('disabled');

                          $('#child_link').addClass('double');

                          var _html = '';

                          _html +='<a title="__title__" href="__url__">__rev__</a> <i style="color:#036185" class="icon-right-open"></i>'

                                  .replace('__rev__','r{0}:{1}'.format(data.results[0].revision, data.results[0].raw_id.substr(0,6)))

                                  .replace('__title__', data.results[0].message)

                                  .replace('__url__', pyroutes.url('changeset_home', {'repo_name': '${c.repo_name}','revision': data.results[0].raw_id}));

                          _html +='<br/>'

                          _html +='<a title="__title__" href="__url__">__rev__</a> <i style="color:#036185" class="icon-right-open"></i>'

                                  .replace('__rev__','r{0}:{1}'.format(data.results[1].revision, data.results[1].raw_id.substr(0,6)))

                                  .replace('__title__', data.results[1].message)

                                  .replace('__url__', pyroutes.url('changeset_home', {'repo_name': '${c.repo_name}','revision': data.results[1].raw_id}));

                          $('#child_link').html(_html);

                      }

                    }

                  });

              e.preventDefault();

          <div class="user">

              ${co.author.full_name_and_username}

          </div>

          <span>

              ${h.age(co.modified_at)}

              %if co.pull_request:

                ${_('on pull request')}

                <a href="${co.pull_request.url()}">"${co.pull_request.title or _("No title")}"</a>

              %else:

                ${_('on this changeset')}

              %endif

              <a class="permalink" href="${co.url()}">&para;</a>

          </span>

          %if h.HasPermissionAny('hg.admin')() or h.HasRepoPermissionAny('repository.admin')(c.repo_name) or co.author.user_id == c.authuser.user_id:

            <div onClick="confirm('${_("Delete comment?")}') && deleteComment(${co.comment_id})" class="buttons delete-comment btn btn-mini">${_('Delete')}</div>

          %endif

      </div>

      <div class="text">

        %if co.status_change:

           <div class="automatic-comment">

             <p>

               <span title="${_('Changeset status')}" class="changeset-status-lbl">${_("Status change")}: ${co.status_change[0].status_lbl}</span>

               <span class="changeset-status-ico"><i class="icon-circle changeset-status-${co.status_change[0].status}"></i></span>

             </p>

           </div>

        %endif

        %if co.text:

          ${h.render_w_mentions(co.text, c.repo_name)|n}

        %endif

      </div>

    </div>

  </div>

</%def>

<%def name="comment_inline_form()">

<div id='comment-inline-form-template' style="display:none">

  <div class="ac">

  %if c.authuser.username != 'default':

    ${h.form('#', class_='inline-form')}

      <div class="clearfix">

        <div class="comment-help">${_('Commenting on line.')}

          <span style="color:#577632" class="tooltip">${_('Comments are in plain text. Use @username inside this text to notify another user.')|n}</span>

        </div>

        <div class="mentions-container"></div>

        <textarea name="text" class="comment-block-ta yui-ac-input"></textarea>

      </div>

      <div class="comment-button">

        <div class="submitting-overlay">${_('Submitting ...')}</div>

        ${h.submit('save', _('Comment'), class_='btn btn-small save-inline-form')}

        ${h.reset('hide-inline-form', _('Cancel'), class_='btn btn-small hide-inline-form')}

      </div>

    ${h.end_form()}

  %else:

      ${h.form('')}

      <div class="clearfix">

          <div class="comment-help">

            ${_('You need to be logged in to comment.')} <a href="${h.url('login_home', came_from=request.path_qs)}">${_('Login now')}</a>

          </div>

      </div>

      <div class="comment-button">

      ${h.reset('hide-inline-form', _('Hide'), class_='btn btn-small hide-inline-form')}

      </div>

      ${h.end_form()}

  %endif

  </div>

</div>

</%def>

## show comment count as "x comments (y inline, z general)"

<%def name="comment_count(inline_cnt, general_cnt)">

    ${'%s (%s, %s)' % (

        ungettext("%d comment", "%d comments", inline_cnt + general_cnt) % (inline_cnt + general_cnt),

        ungettext("%d inline", "%d inline", inline_cnt) % inline_cnt,

        ungettext("%d general", "%d general", general_cnt) % general_cnt

    )}

    <span class="firstlink"></span>

</%def>

## generate inline comments and the main ones

<%def name="generate_comments()">

<div class="comments">

  %for f_path, lines in c.inline_comments:

    %for line_no, comments in lines.iteritems():

      <div class="comments-list-chunk" data-f_path="${f_path}" data-line_no="${line_no}" data-target-id="${h.safeid(h.safe_unicode(f_path))}_${line_no}">

        %for co in comments:

            ${comment_block(co)}

        %endfor

      </div>

    %endfor

  %endfor

  <div class="comments-number">

    ${comment_count(c.inline_cnt, len(c.comments))}

  </div>

        %for co in c.comments:

            ${comment_block(co)}

        %endfor

      </div>

</div>

</%def>

## MAIN COMMENT FORM

</div>

<script>

$(document).ready(function () {

   $(window).on('beforeunload', function(){

         // this message will not be displayed on all browsers

         // (e.g. some versions of Firefox), but the user will still be warned

         return 'There are uncommitted comments.';

      }

   });

});

</script>

</%def>